高中数学选修1-1第二章圆锥曲线与方程 单元测试

j elationshi p betwe en G overnme nt and busine ss. T he "two s essi ons", G eneral Se cretary of "Pro", "cl ear" the wor d succi nctly s ummarize d the new relations hip betwee n Gov ernment a nd busi nes s, as pure politi cs, res haping the politi cal relati ons hip spe cified in t he dire ction. Di strict lea ders in handling politica l and busine ss relati ons , engage i n tradi ng power for money , and finally stum bled, w e a less on, always kee p in mi nd that " Pr o", "clean" pra ctici ng "Pro", "clear". "Pr o" is to open a sincere eng agement with private e nterpris e to hel p s olve pra ctica l difficulties ; " Clear "is to clarify the D ivision of pow er, exerci sed i n accor dance with, private e ntrepre neur s with i nnoce nt purity, not a busi ng power for personal gain, not t o engage i n tradi ng power for money. Thir d, in order to mai ntain fairness a nd j ustice. Fairne ss and justice i s the lifeline of the rul e of law, is t he be st devel opme nt environment. Currently , lax law enfor ceme nt a nd the judicial sect or in our region als o exist to varying degree s, law e nforceme nt z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r

departme nts and individual window unit s power for per sonal gains and bribe s, thi ck friends, relations, huma n cas es, money ca ses i n whi ch s eriously infring e on t he legit imate rights a nd i nterest s of enter prises a nd people. E spe cially s ome law enf orceme nt and i ns pecti on for profit pur poses, del iberately looki ng for corpor ate loopholes , found dir ectly under t he ticket doe s not give busine ss impr ovement opportunities. We recr uit a compa ny doesn't ea sily, cultivating a busi nes s more difficult, never for pers onal gai n, systemati c hara ssment, card, last checke d to che ck to get the e nterpri se collaps ed. T o guara ntee the legitimate rights a nd int erests. Al ways pr oceed from the overall sit uation of reform and devel opme nt of services, fully consider t he characteri stics of production and manageme nt in non -publi c enter prise s and social benefits, a n accurate gra sp of legal limits, prote ct the enthusiasm of e ntrepre neur s and practiti oners in i nnovation and entre prene urs hip, e nha nci ng expe ctations a nd confi dence. T o prom ote

strict enfor cement. Stre ngthe ning la w enfor cement procedures, impr ove law e nforcement perf ormance evaluati on, strengtheni ng the s upervi sion of law enf orceme nt, expl oration and practi ce of risk control mechani sm of law enfor ceme nt to further sta ndar dize t he s ocial s ecurity, urba n manage ment, r oad traffic a dministrative law enfor cement, effectively free, exte nsive la w-e nforcement and lax enfor ceme nt of law enfor cement a nd other is sue s. To uphol d justice. J ustice i s the la st line of Defe nse to safeguar d fairnes s and justi ce, to une quiv ocally support the courts a nd procurator ates inde pendently exer cise l evel ... Judicial activitie s were rampa nt, must not be al lowe d to run, favors , money, m ust not be all owe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd int erests of t he masse s must not be all owe d to abuse of pow er, to make fore st mass ca n be felt in every judi cial cases i n equity and justi ce. F our to deepen gras s-r oots g overna nce a ccordi ng to law

一、选择题(每小题 5 分,共 60 分) 1.椭圆 x 2 ? my2 ? 1的焦点在 y 轴上,长轴长是短轴长的两倍,则 m 的值为( ) A.

1 4

B.

1 2

C.2

D.4

2.过抛物线 y 2 ? 4 x 的焦点作直线 l 交抛物线于 A、B 两点,若线段 AB 中点的横坐标为 3, 则 | AB | 等于( ) A.10 B.8 C.6 D.4

3.若直线 y=kx+2 与双曲线 x 2 ? y 2 ? 6 的右支交于不同的两点,则 k 的取值范围是( ) A. ( ?

15 15 , ) 3 3

B. (0 ,

15 ) 3

C. ( ?

15 , 0) 3

D. (?

15 , ? 1) 3

4.(理)已知抛物线 y 2 ? 4 x 上两个动点 B、C 和点 A(1,2)且∠BAC=90°,则动直线 BC 必过定点( ) A.(2,5) B.(-2,5)

C.(5,-2)

D.(5,2)

(文)过抛物线 y 2 ? 2 px( p ? 0) 的焦点作直线交抛物线于 P( x1 , y1 ) 、 Q( x2 , y 2 ) 两点, 若 x1 ? x2 ? 3 p ,则 | PQ | 等于( ) A.4p B.5p C.6p D.8p

2 2 5.已知两点 M (1, ), N ( ?4,? ) ,给出下列曲线方程:① 4 x ? 2 y ? 1 ? 0 ;② x ? y ? 3 ;③

5 4

5 4

x2 x2 ? y 2 ? 1 ;④ ? y 2 ? 1 .在曲线上存在点 P 满足|MP|=|NP|的所有曲线方程是( ) 2 2
(A)①③ 6.已知双曲线 (B)②④ (C)①②③ (D)②③④

x2 y2 ? ? 1 (a>0,b>0)的两个焦点为 F1 、 F2 ,点 A 在双曲线第一象限的 a2 b2
1 , tan?AF2 F1 ? ?2 ,则双曲线方程为 2

图象上,若△ AF 1 F2 的面积为 1,且 tan ?AF1 F2 ? ( ) A.

12x 2 ? 3y2 ? 1 5
2

B.

5x2 y 2 ? ?1 12 3

C. 3 x ?
2

12 y 2 ?1 5

D.

x2 5 y2 ? ?1 3 12

7.圆心在抛物线 y ? 2 x( y ? 0) 上,并且与抛物线的准线及 x 轴都相切的圆的方程是( )

jGrass -roots gover nance accor ding t o law is a n importa nt foundati on for promoti ng the construction of rule of law, but also t he most basi c devel opme nt envir onme nt. Des pite my good s ocial order i n Ge neral, but ther e are law -abi ding consci ousne ss, s oci al order is not standard, regardle ss of faith, Twining vi sit visit and other outstanding problems. We want t o actively promote t he field of multi-level g overna nce accor ding to la w, pr omote the continuous impr ovement of the social e nvironment. T o prom ote universal compl iance. Activ ely foster the r ule of law cult ure, carry out law publicit y and e ducation on honesty a nd trustwort hine ss, gui de the masse s and cons ciously a bide by the law , failing to find method, pr obl em-s olving method, method of gradually changi ng the w orld, he is not l ooki ng for but someone "unspoke n rule s", formed all law law , abi de by the good atmosphere. To strengt hen t he compre hensive manageme nt of publi c security. De epe ning peace xingan construction, str ongly agai nst viole nce crime, z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保

mafia and seri ous criminal offences, to prote ct the legitimate rig hts a nd i nterests of citize ns, leg al per sons, carry out criminal poli cy of temper j usti ce with mer cy, the maximum stim ulating s oci al vitality, and earnestly safeguard s ocial harmony and sta bility. To re solve social confli cts by law . To f urther sm ooth cha nnels of re porting social conditions a nd public opinion, improvi ng regulati on, arbitration, a s well as dis pute re sol ution mechanism s, impleme nt fully the petitioners ' case s "third -party" heari ngs a nd s upervising system of letters a nd calls , and to res olve the involved law l aws uit into the orbit of rule of law , vexatious, Twi ning vi sit visit, di sturbing s ocial order and other malicious ext ortion, res olutely crack dow n. Five, impr oving cadr es Vitale, provi de strong pr otecti on for fore st dev el opme nt XI Ge neral Secr etary stres sed t hat the compre he nsive revitali zation in Northeas t China , nee ds a high quality, soli d style, cadre s of the dare to play. Cadre cadr es is a pledg e, s hould wa nt to do w ork and able t o do good,

enthusiasm is paramount. Tre at party ca dres, it i s ne cess ary to Strict manageme nt, and warm car e, ena ble the broad mass es of cadres work hard w ork, this i s two parallel pri nci ples . In strict accor dance wit h the sta ndar ds of good cadr es sel ection and appoi ntment, t he real officer s, dare officers, those w ho want to play, good a s excell ent ca dres at all l evels of lea ders hip i n the past. At pr ese nt, some le adi ng cadr es w ork initiative is not high, beyond politi cal, idl e, lazy gover na nce g overna nce , not a s, sl ow, messy a nd a phe nome non still exist t o varying degrees, affecte d and restri cted e conomic and social development. We must mobili ze the e nthusia sm of ca dre s as a n urge nt task, adhere t o com binati on of ince ntives a nd constraint s, and adhere to t he strict ma nagement a nd warm care, pra ctical sol ution "for the officers not to" probl em, motivate ca dres a nd better lea d the mas se s to an undertaking, t he ca dres a nd create the new a chiev ement in a dare to play, good at s hows as new. T o ide ntify the pr oblem, a ccurate

puls e

j elationshi p betwe en G overnme nt and busine ss. T he "two s essi ons", G eneral Se cretary of "Pro", "cl ear" the wor d succi nctly s ummarize d the new relations hip betwee n Gov ernment a nd busi nes s, as pure politi cs, res haping the politi cal relati ons hip spe cified in t he dire ction. Di strict lea ders in handling politica l and busine ss relati ons , engage i n tradi ng power for mone y , and finally stum bled, w e a less on, always kee p in mi nd that "Pr o", "clean" pra ctici ng "Pro", "clear". "Pr o" is to open a sincere eng agement with private e nterpris e to hel p s olve pra ctical difficulties ; " Clear "is to clarify the D ivision of pow er, exerci sed i n accor dance with, private e ntrepre neur s with i nnoce nt purity, not a busi ng power for personal gain, not t o engage i n tradi ng power for money. Thir d, in order to mai ntain fairness a nd j ustice. Fairne ss and justice i s the lifeline of the rul e of law, i s t he be st devel opme nt environment. Currently , lax law enfor cement a nd the judicial sect or in our region als o exist to varying degree s, law e nforceme nt z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r

departme nts and individual window unit s power for per sonal gains and bribe s, thi ck friends, relations, huma n cas es, money ca ses i n whi ch s eriously infring e on t he legitimate rights a nd i nterest s of enter prises a nd people. E spe cially s ome law enf orceme nt and i ns pecti on for profit pur poses, deliberately looki ng for corpor ate loopholes , found dir ectly under t he ticket doe s not give busine ss impr ovement opportunities. We recr uit a compa ny doesn't ea sily, cultivating a busi nes s more difficult, never for pers onal gai n, systemati c hara ssment, card, last checke d to che ck to get the e nterpri se collaps ed. T o guara ntee the legitimate rights a nd int erests. Al ways pr oceed from the overall sit uation of reform and devel opme nt of services, fully consider t he characteri stics of production and manageme nt in non -publi c enter prise s and social benefits, a n accurate gra sp of legal limits, prote ct the enthusiasm of e ntrepre neur s and practiti oners in i nnovation and entre prene urs hip, e nha nci ng expe ctations a nd confi dence. T o prom ote

strict enfor cement. Stre ngthe ning la w enfor cement procedures, impr ove law e nforcement perf ormance evaluati on, strengtheni ng the s upervi sion of law enf orceme nt, expl oration and practi ce of risk control mechani sm of law enfor ceme nt to further sta ndar dize t he s ocial s ecurity, urba n manage ment, road traffic a dministrative law enfor cement, effectively free, exte nsive la w-e nforcement and lax enfor ceme nt of law enfor cement a nd other is sue s. To uphol d justice. J ustice i s the la st line of Defe nse to safeguar d fairnes s and justi ce, to une quiv ocally support the courts a nd procurator ates inde pendently exer cise l evel ... Judicial activitie s were rampa nt, must not be al lowe d to run, favors , money, m ust not be all owe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd int erests of the masse s must not be all owe d to abuse of pow er, to make fore st mass ca n be felt in every judi cial cases i n equity and justi ce. F our to deepen gras s-r oots g overna nce a ccordi ng to law

A. x ? y ? x ? 2 y ?
2 2

1 ?0 4

B. x 2 ? y 2 ? x ? 2 y ? 1 ? 0 D. x ? y ? x ? 2 y ?
2 2

C. x 2 ? y 2 ? x ? 2 y ? 1 ? 0 8.双曲线的虚轴长为 4,离心率 e ?

1 ?0 4

6 , F1 、 F2 分别是它的左、右焦点,若过 F1 的直线与 2


双曲线的右支交于 A、B 两点,且 | AB | 是 | AF2 | 的等差中项,则 | AB | 等于( A. 8 2 B. 4 2
2

C. 2 2

D.8.

9.(理)已知椭圆 x ?

1 2 y ? a 2 (a>0)与 A(2,1),B(4,3)为端点的线段没有公共 2

点,则 a 的取值范围是( ) A. 0 ? a ?

3 2 2 a? 82 2

B. 0 ? a ?

3 2 82 或a ? 2 2

C. a ?

3 2 或 2

D.

3 2 82 ?a? 2 2


(文)抛物线 ( x ? 2) 2 ? 2( y ? m ? 2) 的焦点在 x 轴上,则实数 m 的值为( A.0 B.

3 2

C.2

D.3

10 .已知双曲线中心在原点且一个焦点为 F ( 7 ,0) , 直线 y ? x ? 1 与其相交于 M , N 两点,

MN 中点横坐标为 ?

2 ,则此双曲线的方程是( 3
(B)

)

x2 y2 ? ?1 (A) 3 4
2

x2 y2 ? ?1 4 3

x2 y2 ? ?1 (C) 5 2
0

x2 y2 ? ?1 (D) 2 5

11.将抛物线 y ? x ? 4 x ? 3 绕其顶点顺时针旋转 90 ,则抛物线方程为( ) (A) ( y ? 1) ? 2 ? x (B) ( y ? 1) ? x ? 2
2 2

(C) ( y ? 1) ? 2 ? x (D) ( y ? 1) ? x ? 2
2 2

12. 若直线 m x ? ny ? 4 和⊙O∶ x ? y ? 4 没有交点, 则过 (m, n) 的直线与椭圆
2 2

x2 y2 ? ?1 9 4

的交点个数( ) A.至多一个

B.2 个

C.1 个

D.0 个

Grass -roots gover nance accor ding t o law is a n importa nt foundati on for promoti ng the construction of rule of law, but also t he most basi c devel opme nt envir onme nt. Des pite my good s ocial order i n Ge neral, but ther e are law -abi ding consci ousne ss, s oci al order is not standard, regardle ss of faith, Twining vi sit visit and ot her outstanding problems. We want t o actively promote t he field of multi-level g overna nce accor ding to la w, pr omote the continuous impr ovement of the social e nvironment. T o prom ote universal compl iance. Activ ely foster the r ule of law cult ure, carry out law publicit y and e ducation on honesty a nd trustwort hine ss, gui de the masse s and cons ciously a bide by the law , failing to find method, pr obl em-s olving method, method of gradually changi ng the w orld, he is not l ooki ng for but someone "unspoke n rule s", formed all law law , abi de by the good atmosphere. To strengt hen t he compre hensive manageme nt of publi c security. De epe ning peace xingan construction, str ongly agai nst viole nce crime, 3 W A q C N z S G I X V F . k T x b w v g '" y ,f h c m ln o r e t u ip d s a 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保

mafia and seri ous criminal offences, to prote ct the legitimate rig hts a nd i nterests of citize ns, leg al per sons, carry out criminal poli cy of temper j usti ce with mer cy, the maximum stim ulating s oci al vitality, and earnestly safeguard s ocial harmony and sta bility. To re solve social confli cts by law . To f urther sm ooth cha nnels of r e porting social conditions a nd public opinion, improvi ng regulati on, arbitration, a s well as dis pute re sol ution mechanism s, impleme nt fully the petitioners ' case s "third -party" heari ngs a nd s upervising system of letters a nd calls , and to res olve the involved law l aws uit into the orbit of rule of law , vexatious, Twi ning vi sit visit, di sturbing s ocial order and other malicious ext ortion, res olutely crack dow n. Five, impr oving cadr es Vitale, provi de strong pr otecti on for fore st devel opme nt XI Ge neral Secr etary stres sed t hat the compre he nsive revitali zation in Northeas t China , nee ds a high quality, soli d style, cadre s of the dare to play. Cadre cadr es is a pledg e, s hould wa nt to do w ork and able t o do good,

enthusiasm is paramount. Tre at party ca dres, it i s ne cess ary to Strict manageme nt, and warm car e, ena ble the broad mass es of cadres work hard w ork, this i s two parallel pri nci ples . In st rict accor dance wit h the sta ndar ds of good cadr es sel ection and appoi ntment, t he real officer s, dare officers, those w ho want to play, good a s excell ent ca dres at all l evels of lea ders hip i n the past. At pr ese nt, some le adi ng cadr es w ork initiative is not high, beyond politi cal, idl e, lazy gover na nce g overna nce , not a s, sl ow, messy a nd a phe nome non still exist t o varying degrees, affecte d and restri cted e conomic and social development. We must mobili ze the e nthusia sm of cadre s as a n urge nt task, adhere t o com binati on of ince ntives a nd constraint s, and adhere to t he strict ma nagement a nd warm care, pra ctical sol ution "for the off icers not to" probl em, motivate ca dres a nd better lea d the mas se s to an undertaking, t he ca dres a nd create the new a chiev ement in a dare to play, good at s hows as new. T o ide ntify the pr oblem, a ccurate

puls e

j elationshi p betw een Gover nment a nd busine ss. T he "two ses sions", Ge neral Se cretary of "Pro", "clear" the wor d s uccinctly s ummarized t he new relati ons hip betw een Gover nment a nd busine ss, a s p ure politics, res ha ping the political relations hip s pe cified i n the dire ction. Distri ct lea ders i n ha ndli ng political a nd busine ss rel ations, e ngage i n tradi ng power for m oney, a nd finally st umble d, we a les son, always keep in mind that "Pro", "clea n" pra ctici ng "Pro", "cl ear". "Pro" is t o ope n a si ncer e engag ement wit h private enter prise t o hel p s olve practi cal difficulties; " Clear "is t o clarify t he Divisi on of power, exercis ed i n accor dance wit h, priv ate entre pre neur s with i nnocent purity, not a busi ng p ower for per sonal gain, not to e ngage i n tradi ng power for m oney. Thir d, in order to mai ntain fairness a nd justi ce. Fair nes s and j ustice is the lifeline of the r ule of law, is the best devel opment environment . Currently, lax l aw e nforceme nt and the judicia l sect or in our region als o exist t o varying degree s, law enfor cement z x " k A W T G y D . p v d ,b w la f u r s c e h g in t m o departme nts and individual window unit s power for per sonal gains and bribes, thi ck friends, relati ons , huma n ca ses, money cases i n whi ch seriously i nfringe on the legitimate rig hts and intere sts of ent erpris es and pe opl e. Es pecially some law e nforcement a nd inspe ction for pr ofit purpose s, del iberately looki ng for corpor ate loophole s, found directly under the tick et doe s not give busine ss impr ovement opportunities . We re cruit a compa ny does n't easily, cultivating a busine ss more difficult, never for per sonal gain, systematic harassme nt, car d, last che cked t o check t o get the ent erpris e collaps ed. T o guara ntee the legitimate rights a nd i nterests . Always proceed from the overall s ituation of reform and deve lopme nt of servi ces, fully consi der the chara cteristi cs of pr oducti on a nd manag ement in non-public e nterpri ses a nd s ocial benefits, an a ccurate gras p of legal limits, pr otect t he enthusiasm of e ntrepre neur s and pra ctitioners in i nnovation an d entre prene urs hip, e nhancing expectations a nd confidence. T o pr omote strict enfor cement. Stre ngthe ning la w enfor cement procedures, impr ove law e nforcement perf ormance evaluati on, strengtheni ng the s upervi sion of law enf orceme nt, expl oration and practi ce of risk control mechani sm of law enfor ceme nt to further sta ndar dize t he s ocial s ecurity, urba n manage ment, road traffic a dminist rative law enfor cement, effectively free, exte nsive la w-e nforcement and lax enfor ceme nt of law enfor cement a nd other is sue s. To uphol d justice. J ustice i s the la st line of Defe nse to safeguar d fairnes s and justi ce, to une quiv ocally support the courts a nd procurator ates inde pendently exer cise l evel ... Judicial activitie s were rampa nt, must not be al lowe d to run, favors , money, m ust not be all owe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd int erests of the masse s must not be all owe d to abuse of pow er, to make fore st mass ca n be felt in every judi cial cases i n equity and justi ce. F our to deepen gras s-r oots g overna nce a ccordi ng to law

二、填空题(每小题 4 分,共 16 分) 13.椭圆

1 x2 y2 ? ? 1 的离心率为 ,则 a=________. 2 loga 8 9

14.已知直线 y ? x ? 1 与椭圆 mx2 ? ny2 ? 1 (m ? n ? 0) 相交于 A,B 两点,若弦 AB 的中点 的横坐标等于 ?

1 x2 y2 ,则双曲线 2 ? 2 ? 1 的两条渐近线的夹角的正切值等于________. 3 m n

15.长为 l ( 0<l<1 ) 的线段 AB 的两个端点在抛物线 y ? x 2 上滑动,则线段 AB 中点 M 到 x 轴距离的最小值是________. 16.某宇宙飞船的运行轨道是以地球中心 F 为焦点的椭圆,测得近地点 A 距离地面 m( km) , 远地点 B 距离地面 n(km) ,地球半径为 R(km) ,关于这个椭圆有以下四种说法: ①焦距长为 n ? m ;②短轴长为 (m ? R)(n ? R) ;③离心率 e ?

n?m ;④若以 AB 方 m ? n ? 2R ?(m ? R)(n ? R) 向为 x 轴正方向,F 为坐标原点,则与 F 对应的准线方程为 x ? ? ,其中 (n ? m)

正确的序号为________. 三、解答题(共 44 分) 17.(本小题 10 分)已知椭圆的一个顶点为 A(0,-1),焦点在 x 轴上.若右焦点到直线

x ? y ? 2 2 ? 0 的距离为 3.
(1)求椭圆的方程; (2)设椭圆与直线 y ? kx ? m (k ? 0) 相交于不同的两点 M、N.当 AM ? AN 时,求 m 的 取值范围.

jGrass -roots gover nance accor ding t o law is a n importa nt foundati on for promoti ng the construction of rule of law, but also t he most basi c devel opme nt envir onme nt. Des pite my good s ocial order i n Ge neral, but ther e are law -abi ding consci ousne ss, s oci al order is not standard, regardle ss of faith, Twining vi sit visit and other outstanding problems. We want t o actively promote t he field of multi-level g overna nce accor ding to la w, pr omote the continuous impr ovement of the social e nvironment. T o prom ote universal compl ian ce. Activ ely foster the r ule of law cult ure, carry out law publicit y and e ducation on honesty a nd trustwort hine ss, gui de the masse s and cons ciously a bide by the law , failing to find method, pr obl em -s olving method, method of gradually changi ng the w orld, he is not l ooki ng for but someone "unspoke n rule s", formed all law law , abi de by the good atmosphere. To strengt hen t he compre hensive manageme nt of publi c security. De epe ning peace xingan construction, str ongly agai nst viole nce crime, z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保

mafia and seri ous criminal offences, to prote ct the legitimate rig hts a nd i nterests of citize ns, leg al per sons, carry out criminal poli cy of temper j usti ce with mer cy, the maximum stim ulating s oci al vitality, and earnestly safeguard s ocial harmony and sta bility. To re solve socia l confli cts by law . To f urther sm ooth cha nnels of re porting social conditions a nd public opinion, improvi ng regulati on, arbit ration, a s well as dis pute re sol ution mechanism s, impleme nt fully the petitioners ' case s "third -party" heari ngs a nd s upervising system of letters a nd calls , and to res olve the involved law l aws uit into the orbit of rule of law , vexatious, Twi ning vi sit visit, di sturbing s ocial order and other malicious ext ortion, res olutely crack dow n. Five, impr oving cadr es Vitale, provi de strong pr otecti on for fore st devel opme nt XI Ge neral Secr etary stres sed t hat the compre he nsive revitali zation in Northeas t China , nee ds a high quality, soli d style, cadre s of the dare to play. Cadre cadr es is a pledg e, s hould wa nt to do w ork and able t o do good,

enthusiasm is paramount. Tre at party ca dres, it i s ne cess ary to Strict manageme nt, and warm car e, ena ble the broad mass es of cadres work hard w ork, this i s two parallel pri nci ples . In strict accor dance wit h the sta ndar ds of good cadr es sel ection and appoi ntme nt, t he real officer s, dare officers, those w ho want to play, good a s excell ent ca dres at all l evels of lea ders hip i n the past. At pr ese nt, some le adi ng cadr es w ork initiative is not high, beyond politi cal, idl e, lazy gover na nce g overna nce , not a s, sl ow, m essy a nd a phe nome non still exist t o varying degrees, affecte d and restri cted e conomic and social development. We must mobili ze the e nthusia sm of cadre s as a n urge nt task, adhere t o com binati on of ince ntives a nd constraint s, and adhere to t he strict ma nagem ent a nd warm care, pra ctical sol ution "for the officers not to" probl em, motivate ca dres a nd better lea d the mas se s to an und ertaking, t he ca dres a nd create the new a chiev ement in a dare to play, good at s hows as new. T o ide ntify the pr oblem, a ccurate

puls e

j elationshi p betwe en G overnme nt and busine ss. T he "two s essi ons", G eneral Se cretary of "Pro", "cl ear" the wor d succi nctly s ummarize d the new relations hip betwee n Gov ernment a nd busi nes s, as pure politi cs, res haping the politi cal relati ons hip spe cified in t he dire ction. Di strict lea ders in handling politica l and busine ss relati ons , engage i n tradi ng power for mone y , and finally stum bled, w e a less on, always kee p in mi nd that "Pr o", "clean" pra ctici ng "Pro", "clear". "Pr o" is to open a sincere eng agement with private e nterpris e to hel p s olve pra ctical difficulties ; " Clear "is to clarify the D ivision of pow er, exerci sed i n accor dance with, private e ntrepre neur s with i nnoce nt purity, not a busi ng power for personal gain, not t o engage i n tradi ng power for money. Thir d, in order to mai ntain fairness a nd j ustice. Fairne ss and justice i s the lifeline of the rul e of law, i s t he be st devel opme nt environment. Currently , lax law enfor cement a nd the judicial sect or in our region als o exist to varying degree s, law e nforceme nt z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r

departme nts and individual window unit s power for per sonal gains and bribe s, thi ck friends, relations, huma n cas es, money ca ses i n whi ch s eriously infring e on t he legitimate rights a nd i nterest s of enter prises a nd people. E spe cially s ome law enf orceme nt and i ns pecti on for profit pur poses, deliberately looki ng for corpor ate loopholes , found dir ectly under t he ticket doe s not give busine ss impr ovement opportunities. We recr uit a compa ny doesn't ea sily, cultivating a busi nes s more difficult, never for pers onal gai n, systemati c hara ssment, card, last checke d to che ck to get the e nterpri se collaps ed. T o guara ntee the legitimate rights a nd int erests. Al ways pr oceed from the overall sit uation of reform and devel opme nt of services, fully consider t he characteri stics of production and manageme nt in non -publi c enter prise s and social benefits, a n accurate gra sp of legal limits, prote ct the enthusiasm of e ntrepre neur s and practiti oners in i nnovation and entre prene urs hip, e nha nci ng expe ctations a nd confi dence. T o prom ote

strict enfor cement. Stre ngthe ning la w enfor cement procedures, impr ove law e nforcement perf ormance evaluati on, strengtheni ng the s upervi sion of law enf orceme nt, expl oration and practi ce of risk control mechani sm of law enfor ceme nt to further sta ndar dize t he s ocial s ecurity, urba n manage ment, road traffic a dministrative law enfor cement, effectively free, exte nsive la w-e nforcement and lax enfor ceme nt of law enfor cement a nd other is sue s. To uphol d justice. J ustice i s the la st line of Defe nse to safeguar d fairnes s and justi ce, to une quiv ocally support the courts a nd procurator ates inde pendently exer cise l evel ... Judicial activitie s were rampa nt, must not be al lowe d to run, favors , money, m ust not be all owe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd int erests of the masse s must not be all owe d to abuse of pow er, to make fore st mass ca n be felt in every judi cial cases i n equity and justi ce. F our to deepen gras s-r oots g overna nce a ccordi ng to law

18.(本小题 10 分)双曲线

x2 y2 ? ? 1 (a ? 0, b ? 0) 的右支上存在与右焦点和左准线等距 a2 b2

离的点,求离心率 e 的取值范围.

19.(本小题 12 分)如图,直线 l 与抛物线 y 2 ? x 交于 A( x1 , y1 ) , B( x 2 , y 2 ) 两点,与 x 轴 相交于点 M ,且 y1 y 2 ? ?1 . (1)求证: M 点的坐标为 (1,0) ; (2)求证: OA ? OB ; (3)求 ?AOB 的面积的最小值. y

A O B M

x

Grass -roots gover nance accor ding t o law is a n importa nt foundati on for promoti ng the construction of rule of law, but also t he most basi c devel opme nt envir onme nt. Des pite my good s ocial order i n Ge neral, but ther e are law -abi ding consci ousne ss, s oci al order is not standard, regardle ss of faith, Twining vi sit visit and ot her outstanding problems. We want t o actively promote t he field of multi-level g overna nce accor ding to la w, pr omote the continuous impr ovement of the social e nvironment. T o prom ote universal compl iance. Activ ely foster the r ule of law cult ure, carry out law publicit y and e ducation on honesty a nd trustwort hine ss, gui de the masse s and cons ciously a bide by the law , failing to find method, pr obl em-s olving method, method of gradually changi ng the w orld, he is not l ooki ng for but someone "unspoke n rule s", formed all law law , abi de by the good atmosphere. To strengt hen t he compre hensive manageme nt of publi c security. De epe ning peace xingan construction, str ongly agai nst viole nce crime, 3 W A q C N z S G I X V F . k T x b w v g '" y ,f h c m ln o r e t u ip d s a 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保

mafia and seri ous criminal offences, to prote ct the legitimate rig hts a nd i nterests of citize ns, leg al per sons, carry out criminal poli cy of temper j usti ce with mer cy, the maximum stim ulating s oci al vitality, and earnestly safeguard s ocial harmony and sta bility. To re solve social confli cts by law . To f urther sm ooth cha nnels of r e porting social conditions a nd public opinion, improvi ng regulati on, arbitration, a s well as dis pute re sol ution mechanism s, impleme nt fully the petitioners ' case s "third -party" heari ngs a nd s upervising system of letters a nd calls , and to res olve the involved law l aws uit into the orbit of rule of law , vexatious, Twi ning vi sit visit, di sturbing s ocial order and other malicious ext ortion, res olutely crack dow n. Five, impr oving cadr es Vitale, provi de strong pr otecti on for fore st devel opme nt XI Ge neral Secr etary stres sed t hat the compre he nsive revitali zation in Northeas t China , nee ds a high quality, soli d style, cadre s of the dare to play. Cadre cadr es is a pledg e, s hould wa nt to do w ork and able t o do good,

enthusiasm is paramount. Tre at party ca dres, it i s ne cess ary to Strict manageme nt, and warm car e, ena ble the broad mass es of cadres work hard w ork, this i s two parallel pri nci ples . In st rict accor dance wit h the sta ndar ds of good cadr es sel ection and appoi ntment, t he real officer s, dare officers, those w ho want to play, good a s excell ent ca dres at all l evels of lea ders hip i n the past. At pr ese nt, some le adi ng cadr es w ork initiative is not high, beyond politi cal, idl e, lazy gover na nce g overna nce , not a s, sl ow, messy a nd a phe nome non still exist t o varying degrees, affecte d and restri cted e conomic and social development. We must mobili ze the e nthusia sm of cadre s as a n urge nt task, adhere t o com binati on of ince ntives a nd constraint s, and adhere to t he strict ma nagement a nd warm care, pra ctical sol ution "for the off icers not to" probl em, motivate ca dres a nd better lea d the mas se s to an undertaking, t he ca dres a nd create the new a chiev ement in a dare to play, good at s hows as new. T o ide ntify the pr oblem, a ccurate

puls e

j elationshi p betw een Gover nment a nd busine ss. T he "two ses sions", Ge neral Se cretary of "Pro", "clear" the wor d s uccinctly s ummarized t he new relati ons hip betw een Gover nment a nd busine ss, a s p ure politics, res ha ping the political relations hip s pe cified i n the dire ction. Distri ct lea ders i n ha ndli ng political a nd busine ss rel ations, e ngage i n tradi ng power for m oney, a nd finally st umble d, we a les son, always keep in mind that "Pro", "clea n" pra ctici ng "Pro", "cl ear". "Pro" is t o ope n a si ncer e engag ement wit h private enter prise t o hel p s olve practi cal difficulties; " Clear "is t o clarify t he Divisi on of power, exercis ed i n accor dance wit h, priv ate entre pre neur s with i nnocent purity, not a busi ng p ower for per sonal gain, not to e ngage i n tradi ng power for m oney. Thir d, in order to mai ntain fairness a nd justi ce. Fair nes s and j ustice is the lifeline of the r ule of law, is the best devel opment environment . Currently, lax l aw e nforceme nt and the judicia l sect or in our region als o exist t o varying degree s, law enfor cement z x " k A W T G y D . p v d ,b w la f u r s c e h g in t m o departme nts and individual window unit s power for per sonal gains and bribes, thi ck friends, relati ons , huma n ca ses, money cases i n whi ch seriously i nfringe on the legitimate rig hts and intere sts of ent erpris es and pe opl e. Es pecially some law e nforcement a nd inspe ction for pr ofit purpose s, del iberately looki ng for corpor ate loophole s, found directly under the tick et doe s not give busine ss impr ovement opportunities . We re cruit a compa ny does n't easily, cultivating a busine ss more difficult, never for per sonal gain, systematic harassme nt, car d, last che cked t o check t o get the ent erpris e collaps ed. T o guara ntee the legitimate rights a nd i nterests . Always proceed from the overall s ituation of reform and deve lopme nt of servi ces, fully consi der the chara cteristi cs of pr oducti on a nd manag ement in non-public e nterpri ses a nd s ocial benefits, an a ccurate gras p of legal limits, pr otect t he enthusiasm of e ntrepre neur s and pra ctitioners in i nnovation an d entre prene urs hip, e nhancing expectations a nd confidence. T o pr omote strict enfor cement. Stre ngthe ning la w enfor cement procedures, impr ove law e nforcement perf ormance evaluati on, strengtheni ng the s upervi sion of law enf orceme nt, expl oration and practi ce of risk control mechani sm of law enfor ceme nt to further sta ndar dize t he s ocial s ecurity, urba n manage ment, road traffic a dminist rative law enfor cement, effectively free, exte nsive la w-e nforcement and lax enfor ceme nt of law enfor cement a nd other is sue s. To uphol d justice. J ustice i s the la st line of Defe nse to safeguar d fairnes s and justi ce, to une quiv ocally support the courts a nd procurator ates inde pendently exer cise l evel ... Judicial activitie s were rampa nt, must not be al lowe d to run, favors , money, m ust not be all owe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd int erests of the masse s must not be all owe d to abuse of pow er, to make fore st mass ca n be felt in every judi cial cases i n equity and justi ce. F our to deepen gras s-r oots g overna nce a ccordi ng to law

20.(本小题 12 分)已知椭圆方程为 x ?
2

y2 ? 1 ,射线 y ? 2 2x (x≥0)与椭圆的交点为 8

M,过 M 作倾斜角互补的两条直线,分别与椭圆交于 A、B 两点(异于 M). (1)求证直线 AB 的斜率为定值; (2)求△ AMB 面积的最大值.

三、解答题(20 分) 11. (本小题满分 10 分) 已知直线 l 与圆 x 2 ? y 2 ? 2 x ? 0 相切于点 T, 且与双曲线 x 2 ? y 2 ? 1 相交于 A、B 两点.若 T 是线段 AB 的中点,求直线 l 的方程.

12.(10 分)已知椭圆

x2 y2 6 ? 2 (a>b>0)的离心率 e ? ,过点 A(0,?b) 和 B(a,0) 的直 2 a b 3

线与原点的距离为

3 . 2

(1)求椭圆的方程. (2)已知定点 E (?1,0) ,若直线 y ? kx ? 2 (k ? 0) 与椭圆交于 C、D 两点.问:是否存在 k 的值,使以 CD 为直径的圆过 E 点?请说明理由.

jGrass -roots gover nance accor ding t o law is a n importa nt foundati on for promoti ng the construction of rule of law, but also t he most basi c devel opme nt envir onme nt. Des pite my good s ocial order i n Ge neral, but ther e are law -abi ding consci ousne ss, s oci al order is not standard, regardle ss of faith, Twining vi sit visit and other outstanding problems. We want t o actively promote t he field of multi-level g overna nce accor ding to la w, pr omote the continuous impr ovement of the social e nvironment. T o prom ote universal compl ian ce. Activ ely foster the r ule of law cult ure, carry out law publicit y and e ducation on honesty a nd trustwort hine ss, gui de the masse s and cons ciously a bide by the law , failing to find method, pr obl em -s olving method, method of gradually changi ng the w orld, he is not l ooki ng for but someone "unspoke n rule s", formed all law law , abi de by the good atmosphere. To strengt hen t he compre hensive manageme nt of publi c security. De epe ning peace xingan construction, str ongly agai nst viole nce crime, z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保

mafia and seri ous criminal offences, to prote ct the legitimate rig hts a nd i nterests of citize ns, leg al per sons, carry out criminal poli cy of temper j usti ce with mer cy, the maximum stim ulating s oci al vitality, and earnestly safeguard s ocial harmony and sta bility. To re solve socia l confli cts by law . To f urther sm ooth cha nnels of re porting social conditions a nd public opinion, improvi ng regulati on, arbit ration, a s well as dis pute re sol ution mechanism s, impleme nt fully the petitioners ' case s "third -party" heari ngs a nd s upervising system of letters a nd calls , and to res olve the involved law l aws uit into the orbit of rule of law , vexatious, Twi ning vi sit visit, di sturbing s ocial order and other malicious ext ortion, res olutely crack dow n. Five, impr oving cadr es Vitale, provi de strong pr otecti on for fore st devel opme nt XI Ge neral Secr etary stres sed t hat the compre he nsive revitali zation in Northeas t China , nee ds a high quality, soli d style, cadre s of the dare to play. Cadre cadr es is a pledg e, s hould wa nt to do w ork and able t o do good,

enthusiasm is paramount. Tre at party ca dres, it i s ne cess ary to Strict manageme nt, and warm car e, ena ble the broad mass es of cadres work hard w ork, this i s two parallel pri nci ples . In strict accor dance wit h the sta ndar ds of good cadr es sel ection and appoi ntme nt, t he real officer s, dare officers, those w ho want to play, good a s excell ent ca dres at all l evels of lea ders hip i n the past. At pr ese nt, some le adi ng cadr es w ork initiative is not high, beyond politi cal, idl e, lazy gover na nce g overna nce , not a s, sl ow, m essy a nd a phe nome non still exist t o varying degrees, affecte d and restri cted e conomic and social development. We must mobili ze the e nthusia sm of cadre s as a n urge nt task, adhere t o com binati on of ince ntives a nd constraint s, and adhere to t he strict ma nagem ent a nd warm care, pra ctical sol ution "for the officers not to" probl em, motivate ca dres a nd better lea d the mas se s to an und ertaking, t he ca dres a nd create the new a chiev ement in a dare to play, good at s hows as new. T o ide ntify the pr oblem, a ccurate

puls e

j elationshi p betwe en G overnme nt and busine ss. T he "two s essi ons", G eneral Se cretary of "Pro", "cl ear" the wor d succi nctly s ummarize d the new relations hip betwee n Gov ernment a nd busi nes s, as pure politi cs, res haping the politi cal relati ons hip spe cified in t he dire ction. Di strict lea ders in handling politica l and busine ss relati ons , engage i n tradi ng power for mone y , and finally stum bled, w e a less on, always kee p in mi nd that "Pr o", "clean" pra ctici ng "Pro", "clear". "Pr o" is to open a sincere eng agement with private e nterpris e to hel p s olve pra ctical difficulties ; " Clear "is to clarify the D ivision of pow er, exerci sed i n accor dance with, private e ntrepre neur s with i nnoce nt purity, not a busi ng power for personal gain, not t o engage i n tradi ng power for money. Thir d, in order to mai ntain fairness a nd j ustice. Fairne ss and justice i s the lifeline of the rul e of law, i s t he be st devel opme nt environment. Currently , lax law enfor cement a nd the judicial sect or in our region als o exist to varying degree s, law e nforceme nt z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r

departme nts and individual window unit s power for per sonal gains and bribe s, thi ck friends, relations, huma n cas es, money ca ses i n whi ch s eriously infring e on t he legitimate rights a nd i nterest s of enter prises a nd people. E spe cially s ome law enf orceme nt and i ns pecti on for profit pur poses, deliberately looki ng for corpor ate loopholes , found dir ectly under t he ticket doe s not give busine ss impr ovement opportunities. We recr uit a compa ny doesn't ea sily, cultivating a busi nes s more difficult, never for pers onal gai n, systemati c hara ssment, card, last checke d to che ck to get the e nterpri se collaps ed. T o guara ntee the legitimate rights a nd int erests. Al ways pr oceed from the overall sit uation of reform and devel opme nt of services, fully consider t he characteri stics of production and manageme nt in non -publi c enter prise s and social benefits, a n accurate gra sp of legal limits, prote ct the enthusiasm of e ntrepre neur s and practiti oners in i nnovation and entre prene urs hip, e nha nci ng expe ctations a nd confi dence. T o prom ote

strict enfor cement. Stre ngthe ning la w enfor cement procedures, impr ove law e nforcement perf ormance evaluati on, strengtheni ng the s upervi sion of law enf orceme nt, expl oration and practi ce of risk control mechani sm of law enfor ceme nt to further sta ndar dize t he s ocial s ecurity, urba n manage ment, road traffic a dministrative law enfor cement, effectively free, exte nsive la w-e nforcement and lax enfor ceme nt of law enfor cement a nd other is sue s. To uphol d justice. J ustice i s the la st line of Defe nse to safeguar d fairnes s and justi ce, to une quiv ocally support the courts a nd procurator ates inde pendently exer cise l evel ... Judicial activitie s were rampa nt, must not be al lowe d to run, favors , money, m ust not be all owe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd int erests of the masse s must not be all owe d to abuse of pow er, to make fore st mass ca n be felt in every judi cial cases i n equity and justi ce. F our to deepen gras s-r oots g overna nce a ccordi ng to law

圆锥曲线单元检测答案 1. A 2.B 3 D 4 理 C 文 A 5 D 6 A 7 D 8A 9 理 B 文 B 10 D 11 B 12 B 13. 4 2 或 9 6 14.

4 3

15.

l2 4

16.①③④

x2 2 17.(1)依题意可设椭圆方程为 2 ? y ? 1 ,则右焦点 F( a 2 ? 1,0 )由题设 a
a2 ?1 ? 2 2 2 ?3
解得 a ? 3
2

x2 ? y2 ? 1 . 故所求椭圆的方程为 3

x2 ? y 2 ? 1 ………………………………………………4 分. 3
? y ? kx ? m (2)设 P 为弦 MN 的中点,由 ? ? x2 2 ? ? y ?1 ?3
得 (3k ? 1) x ? 6mkx? 3(m ? 1) ? 0
2 2 2

由于直线与椭圆有两个交点,? ? ? 0, 即 m ? 3k ? 1
2 2

①………………6 分

? xp ?

xM ? x N 3m k ?? 2 2 3k ? 1

从而 y p ? kx p ? m ?

m 3k 2 ? 1

? k Ap ?
?

yp ?1 xp

??

m ? 3k 2 ? 1 3mk

又 AM ? AN ,? AP ? MN ,则
2

m ? 3k 2 ? 1 1 ?? 3m k k

即 2m ? 3k ? 1
2

②…………………………8 分 由②得

把②代入①得 2m ? m

解得 0 ? m ? 2

k2 ?

2m ? 1 ? 0 解得 3

m?

1 2

.故所求 m 的取范围是(

1 ,2 )……………………………………10 分 2

18.设 M ( x0, y 0 ) 是双曲线右支上满足条件的点,且它到右焦点 F2 的距离等于它到左准线的距 离 MN2 ,即 MF2 ? MN ,由双曲线定义可知

MF1 MN

?e

?

MF1 MF2

? e ……5 分

由焦点半径公式得

ex0 ? a ?e ex0 ? a

? x0 ?

a (1 ? e) …………………………7 分 e2 ? e

Grass -roots gover nance accor ding t o law is a n importa nt foundati on for promoti ng the construction of rule of law, but also t he most basi c devel opme nt envir onme nt. Des pite my good s ocial order i n Ge neral, but ther e are law -abi ding consci ousne ss, s oci al order is not standard, regardle ss of faith, Twining vi sit visit and ot her outstanding problems. We want t o actively promote t he field of multi-level g overna nce accor ding to la w, pr omote the continuous impr ovement of the social e nvironment. T o prom ote universal compl iance. Activ ely foster the r ule of law cult ure, carry out law publicit y and e ducation on honesty a nd trustwort hine ss, gui de the masse s and cons ciously a bide by the law , failing to find method, pr obl em-s olving method, method of gradually changi ng the w orld, he is not l ooki ng for but someone "unspoke n rule s", formed all law law , abi de by the good atmosphere. To strengt hen t he compre hensive manageme nt of publi c security. De epe ning peace xingan construction, str ongly agai nst viole nce crime, 3 W A q C N z S G I X V F . k T x b w v g '" y ,f h c m ln o r e t u ip d s a 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保

mafia and seri ous criminal offences, to prote ct the legitimate rig hts a nd i nterests of citize ns, leg al per sons, carry out criminal poli cy of temper j usti ce with mer cy, the maximum stim ulating s oci al vitality, and earnestly safeguard s ocial harmony and sta bility. To re solve social confli cts by law . To f urther sm ooth cha nnels of r e porting social conditions a nd public opinion, improvi ng regulati on, arbitration, a s well as dis pute re sol ution mechanism s, impleme nt fully the petitioners ' case s "third -party" heari ngs a nd s upervising system of letters a nd calls , and to res olve the involved law l aws uit into the orbit of rule of law , vexatious, Twi ning vi sit visit, di sturbing s ocial order and other malicious ext ortion, res olutely crack dow n. Five, impr oving cadr es Vitale, provi de strong pr otecti on for fore st devel opme nt XI Ge neral Secr etary stres sed t hat the compre he nsive revitali zation in Northeas t China , nee ds a high quality, soli d style, cadre s of the dare to play. Cadre cadr es is a pledg e, s hould wa nt to do w ork and able t o do good,

enthusiasm is paramount. Tre at party ca dres, it i s ne cess ary to Strict manageme nt, and warm car e, ena ble the broad mass es of cadres work hard w ork, this i s two parallel pri nci ples . In st rict accor dance wit h the sta ndar ds of good cadr es sel ection and appoi ntment, t he real officer s, dare officers, those w ho want to play, good a s excell ent ca dres at all l evels of lea ders hip i n the past. At pr ese nt, some le adi ng cadr es w ork initiative is not high, beyond politi cal, idl e, lazy gover na nce g overna nce , not a s, sl ow, messy a nd a phe nome non still exist t o varying degrees, affecte d and restri cted e conomic and social development. We must mobili ze the e nthusia sm of cadre s as a n urge nt task, adhere t o com binati on of ince ntives a nd constraint s, and adhere to t he strict ma nagement a nd warm care, pra ctical sol ution "for the off icers not to" probl em, motivate ca dres a nd better lea d the mas se s to an undertaking, t he ca dres a nd create the new a chiev ement in a dare to play, good at s hows as new. T o ide ntify the pr oblem, a ccurate

puls e

j elationshi p betw een Gover nment a nd busine ss. T he "two ses sions", Ge neral Se cretary of "Pro", "clear" the wor d s uccinctly s ummarized t he new relati ons hip betw een Gover nment a nd busine ss, a s p ure politics, res ha ping the political relations hip s pe cified i n the dire ction. Distri ct lea ders i n ha ndli ng political a nd busine ss rel ations, e ngage i n tradi ng power for m oney, a nd finally st umble d, we a les son, always keep in mind that "Pro", "clea n" pra ctici ng "Pro", "cl ear". "Pro" is t o ope n a si ncer e engag ement wit h private enter prise t o hel p s olve practi cal difficulties; " Clear "is t o clarify t he Divisi on of power, exercis ed i n accor dance wit h, priv ate entre pre neur s with i nnocent purity, not a busi ng p ower for per sonal gain, not to e ngage i n tradi ng power for m oney. Thir d, in order to mai ntain fairness a nd justi ce. Fair nes s and j ustice is the lifeline of the r ule of law, is the best devel opment environment . Currently, lax l aw e nforceme nt and the judicia l sect or in our region als o exist t o varying degree s, law enfor cement z x " k A W T G y D . p v d ,b w la f u r s c e h g in t m o departme nts and individual window unit s power for per sonal gains and bribes, thi ck friends, relati ons , huma n ca ses, money cases i n whi ch seriously i nfringe on the legitimate rig hts and intere sts of ent erpris es and pe opl e. Es pecially some law e nforcement a nd inspe ction for pr ofit purpose s, del iberately looki ng for corpor ate loophole s, found directly under the tick et doe s not give busine ss impr ovement opportunities . We re cruit a compa ny does n't easily, cultivating a busine ss more difficult, never for per sonal gain, systematic harassme nt, car d, last che cked t o check t o get the ent erpris e collaps ed. T o guara ntee the legitimate rights a nd i nterests . Always proceed from the overall s ituation of reform and deve lopme nt of servi ces, fully consi der the chara cteristi cs of pr oducti on a nd manag ement in non-public e nterpri ses a nd s ocial benefits, an a ccurate gras p of legal limits, pr otect t he enthusiasm of e ntrepre neur s and pra ctitioners in i nnovation an d entre prene urs hip, e nhancing expectations a nd confidence. T o pr omote strict enfor cement. Stre ngthe ning la w enfor cement procedures, impr ove law e nforcement perf ormance evaluati on, strengtheni ng the s upervi sion of law enf orceme nt, expl oration and practi ce of risk control mechani sm of law enfor ceme nt to further sta ndar dize t he s ocial s ecurity, urba n manage ment, road traffic a dminist rative law enfor cement, effectively free, exte nsive la w-e nforcement and lax enfor ceme nt of law enfor cement a nd other is sue s. To uphol d justice. J ustice i s the la st line of Defe nse to safeguar d fairnes s and justi ce, to une quiv ocally support the courts a nd procurator ates inde pendently exer cise l evel ... Judicial activitie s were rampa nt, must not be al lowe d to run, favors , money, m ust not be all owe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd int erests of the masse s must not be all owe d to abuse of pow er, to make fore st mass ca n be felt in every judi cial cases i n equity and justi ce. F our to deepen gras s-r oots g overna nce a ccordi ng to law

而 x0 ? a

?

a(1 ? e) ?a e2 ? e



e 2 ? 2e ? 1 ? 0 解 得 1 ? 2 ? e ? 2 ? 1 但

e ?1

?1 ? e ? 2 ? 1 ……………………………………10 分

19. (1 ) 设 M 点的坐标为 ( x0 ,0) , 直线 l 方程为 x ? my ? x0 , 代入 y 2 ? x 得 ① y1 , y2 是此方程的两根, y 2 ? my ? x0 ? 0 ∴ x0 ? ? y1 y2 ? 1 ,即 M 点的坐标为(1, 0). (2 ) ∵ y1 y 2 ? ?1 ∴ x1 x2 ? y1 y2 ? y1 y2 ? y1 y2 ? y1 y2 ( y1 y2 ? 1) ? 0 ∴ OA ? OB . (3)由方程①, y1 ? y 2 ? m , y1 y 2 ? ?1 , 且 | OM |? x0 ? 1, 于是 S ?AOB ?
2 2

1 1 1 m 2 ? 4 ≥1, ( y1 ? y 2 ) 2 ? 4 y1 y 2 = | OM || y1 ? y 2 |? 2 2 2 ∴ 当 m ? 0 时, ?AOB 的面积取最小值 1.
斜率 k 存在,不妨设 k>0,求出 M (

20.解析:(1)∵

2 ,2).直线 MA 方程为 2

y ? 2 ? k(x ?

2 2 ) ,直线 AB 方程为 y ? 2 ? ?k ( x ? ). 2 2
2k 2 ? 4k 2 . ? 2 k ?8 2

2 分别与椭圆方程联立,可解出 x A ? 2k2 ? 4k ? 2 , xB ? k ?8 2



y A ? y B k ( x A ? xB ) ? ?2 2. ∴ x A ? xB x A ? xB

k AB ? 2 2 (定值).
y2 ? 1 联立,消去 y 得 16x 2 ? 4 2mx 8

(2)设直线 AB 方程为 y ? 2 2 x ? m ,与 x ?
2

? (m2 ? 8) ? 0 .
由 ? ? 0 得 ? 4 ? m ? 4 ,且 m ? 0 ,点 M 到 AB 的距离为 d ? 设 ?AMB 的面积为 S . ∴

|m| . 3

1 1 2 1 16 2 | AB | 2 d 2 ? m (16 ? m 2 ) ? ?( ) ? 2 . 4 32 32 2 当 m ? ?2 2 时,得 Smax ? 2 . S2 ?

11.解:直线 l 与 x 轴不平行,设 l 的方程为 x ? ky ? a 代入双曲线方程 整理得

jGrass -roots gover nance accor ding t o law is a n importa nt foundati on for promoti ng the construction of rule of law, but also t he most basi c devel opme nt envir onme nt. Des pite my good s ocial order i n Ge neral, but ther e are law -abi ding consci ousne ss, s oci al order is not standard, regardle ss of faith, Twining vi sit visit and other outstanding problems. We want t o actively promote t he field of multi-level g overna nce accor ding to la w, pr omote the continuous impr ovement of the social e nvironment. T o prom ote universal compl ian ce. Activ ely foster the r ule of law cult ure, carry out law publicit y and e ducation on honesty a nd trustwort hine ss, gui de the masse s and cons ciously a bide by the law , failing to find method, pr obl em -s olving method, method of gradually changi ng the w orld, he is not l ooki ng for but someone "unspoke n rule s", formed all law law , abi de by the good atmosphere. To strengt hen t he compre hensive manageme nt of publi c security. De epe ning peace xingan construction, str ongly agai nst viole nce crime, z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保

mafia and seri ous criminal offences, to prote ct the legitimate rig hts a nd i nterests of citize ns, leg al per sons, carry out criminal poli cy of temper j usti ce with mer cy, the maximum stim ulating s oci al vitality, and earnestly safeguard s ocial harmony and sta bility. To re solve socia l confli cts by law . To f urther sm ooth cha nnels of re porting social conditions a nd public opinion, improvi ng regulati on, arbit ration, a s well as dis pute re sol ution mechanism s, impleme nt fully the petitioners ' case s "third -party" heari ngs a nd s upervising system of letters a nd calls , and to res olve the involved law l aws uit into the orbit of rule of law , vexatious, Twi ning vi sit visit, di sturbing s ocial order and other malicious ext ortion, res olutely crack dow n. Five, impr oving cadr es Vitale, provi de strong pr otecti on for fore st devel opme nt XI Ge neral Secr etary stres sed t hat the compre he nsive revitali zation in Northeas t China , nee ds a high quality, soli d style, cadre s of the dare to play. Cadre cadr es is a pledg e, s hould wa nt to do w ork and able t o do good,

enthusiasm is paramount. Tre at party ca dres, it i s ne cess ary to Strict manageme nt, and warm car e, ena ble the broad mass es of cadres work hard w ork, this i s two parallel pri nci ples . In strict accor dance wit h the sta ndar ds of good cadr es sel ection and appoi ntme nt, t he real officer s, dare officers, those w ho want to play, good a s excell ent ca dres at all l evels of lea ders hip i n the past. At pr ese nt, some le adi ng cadr es w ork initiative is not high, beyond politi cal, idl e, lazy gover na nce g overna nce , not a s, sl ow, m essy a nd a phe nome non still exist t o varying degrees, affecte d and restri cted e conomic and social development. We must mobili ze the e nthusia sm of cadre s as a n urge nt task, adhere t o com binati on of ince ntives a nd constraint s, and adhere to t he strict ma nagem ent a nd warm care, pra ctical sol ution "for the officers not to" probl em, motivate ca dres a nd better lea d the mas se s to an und ertaking, t he ca dres a nd create the new a chiev ement in a dare to play, good at s hows as new. T o ide ntify the pr oblem, a ccurate

puls e

j elationshi p betwe en G overnme nt and busine ss. T he "two s essi ons", G eneral Se cretary of "Pro", "cl ear" the wor d succi nctly s ummarize d the new relations hip betwee n Gov ernment a nd busi nes s, as pure politi cs, res haping the politi cal relati ons hip spe cified in t he dire ction. Di strict lea ders in handling politica l and busine ss relati ons , engage i n tradi ng power for mone y , and finally stum bled, w e a less on, always kee p in mi nd that "Pr o", "clean" pra ctici ng "Pro", "clear". "Pr o" is to open a sincere eng agement with private e nterpris e to hel p s olve pra ctical difficulties ; " Clear "is to clarify the D ivision of pow er, exerci sed i n accor dance with, private e ntrepre neur s with i nnoce nt purity, not a busi ng power for personal gain, not t o engage i n tradi ng power for money. Thir d, in order to mai ntain fairness a nd j ustice. Fairne ss and justice i s the lifeline of the rul e of law, i s t he be st devel opme nt environment. Currently , lax law enfor cement a nd the judicial sect or in our region als o exist to varying degree s, law e nforceme nt z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r

departme nts and individual window unit s power for per sonal gains and bribe s, thi ck friends, relations, huma n cas es, money ca ses i n whi ch s eriously infring e on t he legitimate rights a nd i nterest s of enter prises a nd people. E spe cially s ome law enf orceme nt and i ns pecti on for profit pur poses, deliberately looki ng for corpor ate loopholes , found dir ectly under t he ticket doe s not give busine ss impr ovement opportunities. We recr uit a compa ny doesn't ea sily, cultivating a busi nes s more difficult, never for pers onal gai n, systemati c hara ssment, card, last checke d to che ck to get the e nterpri se collaps ed. T o guara ntee the legitimate rights a nd int erests. Al ways pr oceed from the overall sit uation of reform and devel opme nt of services, fully consider t he characteri stics of production and manageme nt in non -publi c enter prise s and social benefits, a n accurate gra sp of legal limits, prote ct the enthusiasm of e ntrepre neur s and practiti oners in i nnovation and entre prene urs hip, e nha nci ng expe ctations a nd confi dence. T o prom ote

strict enfor cement. Stre ngthe ning la w enfor cement procedures, impr ove law e nforcement perf ormance evaluati on, strengtheni ng the s upervi sion of law enf orceme nt, expl oration and practi ce of risk control mechani sm of law enfor ceme nt to further sta ndar dize t he s ocial s ecurity, urba n manage ment, road traffic a dministrative law enfor cement, effectively free, exte nsive la w-e nforcement and lax enfor ceme nt of law enfor cement a nd other is sue s. To uphol d justice. J ustice i s the la st line of Defe nse to safeguar d fairnes s and justi ce, to une quiv ocally support the courts a nd procurator ates inde pendently exer cise l evel ... Judicial activitie s were rampa nt, must not be al lowe d to run, favors , money, m ust not be all owe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd int erests of the masse s must not be all owe d to abuse of pow er, to make fore st mass ca n be felt in every judi cial cases i n equity and justi ce. F our to deepen gras s-r oots g overna nce a ccordi ng to law

(k 2 ? 1) y 2 ? 2kay ? a 2 ? 1 ? 0
yT ? y A ? yB ak ?? 2 2 k ?1

……………………3 分

而 k ?1 ? 0
2

,于是

从而 xT ? ky T ? a ? ?

a ak a , ) ……5 分 即 T( 2 k ?1 1? k 1? k 2
2

? 点 T 在圆上
由圆心 O ?(?1,0)

ak 2 a 2 2a ?( ) ?( ) ? ?0 2 2 1? k 1? k 1? k 2
. O ?T ? l 得 kO?T ? kl ? ?1

即k ? a ? 2
2


2

则 k ?0

或 k ? 2a ? 1

当 k ? 0 时,由①得 a ? ?2,

? l 的方程为 x ? ?2 ;

2 当 k ? 2a ? 1 时, 由①得 a ? 1 K ? ? 3,?l 的方程为 x ? ? 3 y ? 1 .故所求直线 l 的方程

为 x ? ?2 或 x ? ? 3 y ? 1 …………………………10 分 12.解:(1)直线 AB 方程为: bx ? ay ? ab ? 0 .

?c 6 , ? ? 3 ?a 依题意 ? 3 ? ab ? 2 2 ? 2 ? a ?b
∴ 椭圆方程为

解得

?a ? 3 , ? ?b ? 1

x2 ? y2 ? 1 . 3

(2)假若存在这样的 k 值,由 ? ∴

? y ? kx ? 2, ?x ? 3 y ? 3 ? 0
2 2

得 (1 ? 3k 2 ) x ? 12kx ? 9 ? 0 .
2

? ? (12k )2 ? 36(1 ? 3k 2 ) ? 0 .



12k ? x1 ? x2 ? ? , ? ? 1 ? 3k 2 设 C ( x1 , y1 ) 、 D( x2 , y 2 ) ,则 ? ?x ? x ? 9 1 2 ? 1 ? 3k 2 ?
而 y1 ? y2 ? (kx1 ? 2)(kx2 ? 2) ? k x1 x2 ? 2k ( x1 ? x2 ) ? 4 .
2



要使以 CD 为直径的圆过点 E(-1,0),当且仅当 CE⊥DE 时,则 即 y1 y2 ? ( x1 ? 1)(x2 ? 1) ? 0 .

y1 ? y2 ? ?1 , x1 ? 1 x2 ? 1

Grass -roots gover nance accor ding t o law is a n importa nt foundati on for promoti ng the construction of rule of law, but also t he most basi c devel opme nt envir onme nt. Des pite my good s ocial order i n Ge neral, but ther e are law -abi ding consci ousne ss, s oci al order is not standard, regardle ss of faith, Twining vi sit visit and ot her outstanding problems. We want t o actively promote t he field of multi-level g overna nce accor ding to la w, pr omote the continuous impr ovement of the social e nvironment. T o prom ote universal compl iance. Activ ely foster the r ule of law cult ure, carry out law publicit y and e ducation on honesty a nd trustwort hine ss, gui de the masse s and cons ciously a bide by the law , failing to find method, pr obl em-s olving method, method of gradually changi ng the w orld, he is not l ooki ng for but someone "unspoke n rule s", formed all law law , abi de by the good atmosphere. To strengt hen t he compre hensive manageme nt of publi c security. De epe ning peace xingan construction, str ongly agai nst viole nce crime, 3 W A q C N z S G I X V F . k T x b w v g '" y ,f h c m ln o r e t u ip d s a 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保

mafia and seri ous criminal offences, to prote ct the legitimate rig hts a nd i nterests of citize ns, leg al per sons, carry out criminal poli cy of temper j usti ce with mer cy, the maximum stim ulating s oci al vitality, and earnestly safeguard s ocial harmony and sta bility. To re solve social confli cts by law . To f urther sm ooth cha nnels of r e porting social conditions a nd public opinion, improvi ng regulati on, arbitration, a s well as dis pute re sol ution mechanism s, impleme nt fully the petitioners ' case s "third -party" heari ngs a nd s upervising system of letters a nd calls , and to res olve the involved law l aws uit into the orbit of rule of law , vexatious, Twi ning vi sit visit, di sturbing s ocial order and other malicious ext ortion, res olutely crack dow n. Five, impr oving cadr es Vitale, provi de strong pr otecti on for fore st devel opme nt XI Ge neral Secr etary stres sed t hat the compre he nsive revitali zation in Northeas t China , nee ds a high quality, soli d style, cadre s of the dare to play. Cadre cadr es is a pledg e, s hould wa nt to do w ork and able t o do good,

enthusiasm is paramount. Tre at party ca dres, it i s ne cess ary to Strict manageme nt, and warm car e, ena ble the broad mass es of cadres work hard w ork, this i s two parallel pri nci ples . In st rict accor dance wit h the sta ndar ds of good cadr es sel ection and appoi ntment, t he real officer s, dare officers, those w ho want to play, good a s excell ent ca dres at all l evels of lea ders hip i n the past. At pr ese nt, some le adi ng cadr es w ork initiative is not high, beyond politi cal, idl e, lazy gover na nce g overna nce , not a s, sl ow, messy a nd a phe nome non still exist t o varying degrees, affecte d and restri cted e conomic and social development. We must mobili ze the e nthusia sm of cadre s as a n urge nt task, adhere t o com binati on of ince ntives a nd constraint s, and adhere to t he strict ma nagement a nd warm care, pra ctical sol ution "for the off icers not to" probl em, motivate ca dres a nd better lea d the mas se s to an undertaking, t he ca dres a nd create the new a chiev ement in a dare to play, good at s hows as new. T o ide ntify the pr oblem, a ccurate

puls e

j elationshi p betw een Gover nment a nd busine ss. T he "two ses sions", Ge neral Se cretary of "Pro", "clear" the wor d s uccinctly s ummarized t he new relati ons hip betw een Gover nment a nd busine ss, a s p ure politics, res ha ping the political relations hip s pe cified i n the dire ction. Distri ct lea ders i n ha ndli ng political a nd busine ss rel ations, e ngage i n tradi ng power for m oney, a nd finally st umble d, we a les son, always keep in mind that "Pro", "clea n" pra ctici ng "Pro", "cl ear". "Pro" is t o ope n a si ncer e engag ement wit h private enter prise t o hel p s olve practi cal difficulties; " Clear "is t o clarify t he Divisi on of power, exercis ed i n accor dance wit h, priv ate entre pre neur s with i nnocent purity, not a busi ng p ower for per sonal gain, not to e ngage i n tradi ng power for m oney. Thir d, in order to mai ntain fairness a nd justi ce. Fair nes s and j ustice is the lifeline of the r ule of law, is the best devel opment environment . Currently, lax l aw e nforceme nt and the judicia l sect or in our region als o exist t o varying degree s, law enfor cement z x " k A W T G y D . p v d ,b w la f u r s c e h g in t m o departme nts and individual window unit s power for per sonal gains and bribes, thi ck friends, relati ons , huma n ca ses, money cases i n whi ch seriously i nfringe on the legitimate rig hts and intere sts of ent erpris es and pe opl e. Es pecially some law e nforcement a nd inspe ction for pr ofit purpose s, del iberately looki ng for corpor ate loophole s, found directly under the tick et doe s not give busine ss impr ovement opportunities . We re cruit a compa ny does n't easily, cultivating a busine ss more difficult, never for per sonal gain, systematic harassme nt, car d, last che cked t o check t o get the ent erpris e collaps ed. T o guara ntee the legitimate rights a nd i nterests . Always proceed from the overall s ituation of reform and deve lopme nt of servi ces, fully consi der the chara cteristi cs of pr oducti on a nd manag ement in non-public e nterpri ses a nd s ocial benefits, an a ccurate gras p of legal limits, pr otect t he enthusiasm of e ntrepre neur s and pra ctitioners in i nnovation an d entre prene urs hip, e nhancing expectations a nd confidence. T o pr omote strict enfor cement. Stre ngthe ning la w enfor cement procedures, impr ove law e nforcement perf ormance evaluati on, strengtheni ng the s upervi sion of law enf orceme nt, expl oration and practi ce of risk control mechani sm of law enfor ceme nt to further sta ndar dize t he s ocial s ecurity, urba n manage ment, road traffic a dminist rative law enfor cement, effectively free, exte nsive la w-e nforcement and lax enfor ceme nt of law enfor cement a nd other is sue s. To uphol d justice. J ustice i s the la st line of Defe nse to safeguar d fairnes s and justi ce, to une quiv ocally support the courts a nd procurator ates inde pendently exer cise l evel ... Judicial activitie s were rampa nt, must not be al lowe d to run, favors , money, m ust not be all owe d to knowingly vi olate the mis carriage, vi olations of the legitimate rights a nd int erests of the masse s must not be all owe d to abuse of pow er, to make fore st mass ca n be felt in every judi cial cases i n equity and justi ce. F our to deepen gras s-r oots g overna nce a ccordi ng to law



(k 2 ? 1) x1 x2 ? 2(k ? 1)(x1 ? x2 ) ? 5 ? 0 .
7 7 .经验证, k ? ,使①成立. 6 6



将②式代入③整理解得 k ? 综上可知,存在 k ?

7 ,使得以 CD 为直径的圆过点 E. 6

jGrass -roots gover nance accor ding t o law is a n importa nt foundati on for promoti ng the construction of rule of law, but also t he most basi c devel opme nt envir onme nt. Des pite my good s ocial order i n Ge neral, but ther e are law -abi ding consci ousne ss, s oci al order is not standard, regardle ss of faith, Twining vi sit visit and other outstanding problems. We want t o actively promote t he field of multi-level g overna nce accor ding to la w, pr omote the continuous impr ovement of the social e nvironment. T o prom ote universal compl ian ce. Activ ely foster the r ule of law cult ure, carry out law publicit y and e ducation on honesty a nd trustwort hine ss, gui de the masse s and cons ciously a bide by the law , failing to find method, pr obl em -s olving method, method of gradually changi ng the w orld, he is not l ooki ng for but someone "unspoke n rule s", formed all law law , abi de by the good atmosphere. To strengt hen t he compre hensive manageme nt of publi c security. De epe ning peace xingan construction, str ongly agai nst viole nce crime, z x " k A W T G y D . p v d ,b w la f u s c e h g in t m o r 形 情 止 禁 律 作 以 可 民 公 织 组 他 其 、 法 力 能 偿 清 代 有 。 为 任 责 担 承 者 或 照 按 时 行 履 不 务 当 , 定 约 权 债 和 人 : 念 概 的 证 保

mafia and seri ous criminal offences, to prote ct the legitimate rig hts a nd i nterests of citize ns, leg al per sons, carry out criminal poli cy of temper j usti ce with mer cy, the maximum stim ulating s oci al vitality, and earnestly safeguard s ocial harmony and sta bility. To re solve socia l confli cts by law . To f urther sm ooth cha nnels of re porting social conditions a nd public opinion, improvi ng regulati on, arbit ration, a s well as dis pute re sol ution mechanism s, impleme nt fully the petitioners ' case s "third -party" heari ngs a nd s upervising system of letters a nd calls , and to res olve the involved law l aws uit into the orbit of rule of law , vexatious, Twi ning vi sit visit, di sturbing s ocial order and other malicious ext ortion, res olutely crack dow n. Five, impr oving cadr es Vitale, provi de strong pr otecti on for fore st devel opme nt XI Ge neral Secr etary stres sed t hat the compre he nsive revitali zation in Northeas t China , nee ds a high quality, soli d style, cadre s of the dare to play. Cadre cadr es is a pledg e, s hould wa nt to do w ork and able t o do good,

enthusiasm is paramount. Tre at party ca dres, it i s ne cess ary to Strict manageme nt, and warm car e, ena ble the broad mass es of cadres work hard w ork, this i s two parallel pri nci ples . In strict accor dance wit h the sta ndar ds of good cadr es sel ection and appoi ntme nt, t he real officer s, dare officers, those w ho want to play, good a s excell ent ca dres at all l evels of lea ders hip i n the past. At pr ese nt, some le adi ng cadr es w ork initiative is not high, beyond politi cal, idl e, lazy gover na nce g overna nce , not a s, sl ow, m essy a nd a phe nome non still exist t o varying degrees, affecte d and restri cted e conomic and social development. We must mobili ze the e nthusia sm of cadre s as a n urge nt task, adhere t o com binati on of ince ntives a nd constraint s, and adhere to t he strict ma nagem ent a nd warm care, pra ctical sol ution "for the officers not to" probl em, motivate ca dres a nd better lea d the mas se s to an und ertaking, t he ca dres a nd create the new a chiev ement in a dare to play, good at s hows as new. T o ide ntify the pr oblem, a ccurate

puls e


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