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        1. A.sinα B. C.cosα D. 查看更多

           

          題目列表(包括答案和解析)

          完形填空(共20小題;每小題1.5分,滿分30分)
          閱讀下面短文,從短文后各題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出可以填入空白處的最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。
          When Winston Churchill was a young man, his father concluded that Churchill was “unfit for a career in law or politics” because he did so badly in school.  
          When Charles Darwin was getting ready to   36   on his five-year expedition on The Beagle, his father was extremely   37  . he thought his son was falling into a life of sin and idleness.
          George Washington’s mother was a complaining,   38   woman by all accounts. She thought little of Washington’s achievements and didn’t   39   at either of his presidential inaugurations(就職典禮). She was always complaining that her   40   overlooked her and she was especially angry when her son George ran off to   41   the army for the American Revolution. She   42   believed it was his duty to stay home and take care of her.
          In his youth, the   43   Leonard Bernstein, one of the most talented and successful composers in American history, was continually pressured by his father to give up his   44   and do something worthwhile, like help out in his family’s beauty-supply business. After Leonard became   45  , his father was asked about that, and he answered, “Well, how was I supposed to know he was the Leonard Bernstein?”
          People may criticize you or make fun of your ideas or actively try to   46   you. Often their efforts are only attempts to protect you from   47  . But obviously failure is only a possibility if you stop. If you keep   48  , a “failure” is just another learning   49  . Besides, giving up on a heartfelt goal is worse than failing. “Many people die”, said Wendell Holmes, “  50   their music still in them.” That’s true tragedy.
          So listen   51   to the worries and criticisms of your friends and family, and do your best to put their   52   at ease, but then carry on. Listen last to your own heart. You   53   yourself better than anyone on earth. Make sure your song is   54  .  
          Listen to your own heart. Don’t let your music   55   with you.
          36.A.set sail                          B.take charge                 C.set free                         D.take off
          37.A.excited                          B.pleased                         C.disappointed               D.a(chǎn)ffected
          38.A.self-centered              B.self-confident              C.kind-hearted               D.cold-blooded
          39.A.show off                       B.show up                        C.pick out                         D.pick up
          40.A.parents                         B.neighbors                     C.students                       D.children
          41.A.fight                               B.beat                               C.command                     D.a(chǎn)ttend
          42.A.foolishly                        B.secretly                        C.bravely                          D.honestly
          43.A.late                                B.latter                             C.former                          D.later
          44.A.strength                       B.music                            C.wealth                          D.faith
          45.A.proud                            B.steady                           C.independent                D.famous
          46.A.  advise                         B.suggest                        C.stop                               D.keep
          47.A.success                         B.failure                           C.poison                           D.laziness
          48.A.stopping                       B.starting                        C.going                             D.coming
          49.A.method                         B.experiment                  C.schedule                       D.experience
          50.A.with                               B.beyond                          C.without                         D.during
          51.A.politely                          B.rudely                            C.thoroughly                   D.roughly
          52.A.homes                           B.minds                            C.businesses                            D.efforts
          53.A.trust                              B.believe                          C.know                             D.doubt
          54.A.finished                         B.completed                   C.written                         D.sung
          55.A.live                                 B.die                                  C.sound                            D.play

          查看答案和解析>>

           完形填空(共20小題;每小題1.5分,滿分30分)

                   閱讀下面短文,從短文后各題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出可以填入空白處的最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。

          When Winston Churchill was a young man, his father concluded that Churchill was “unfit for a career in law or politics” because he did so badly in school.  

          When Charles Darwin was getting ready to   36   on his five-year expedition on The Beagle, his father was extremely   37  . he thought his son was falling into a life of sin and idleness.

          George Washington’s mother was a complaining,   38   woman by all accounts. She thought little of Washington’s achievements and didn’t   39   at either of his presidential inaugurations(就職典禮). She was always complaining that her   40   overlooked her and she was especially angry when her son George ran off to   41   the army for the American Revolution. She   42   believed it was his duty to stay home and take care of her.

          In his youth, the   43   Leonard Bernstein, one of the most talented and successful composers in American history, was continually pressured by his father to give up his   44   and do something worthwhile, like help out in his family’s beauty-supply business. After Leonard became   45  , his father was asked about that, and he answered, “Well, how was I supposed to know he was the Leonard Bernstein?”

          People may criticize you or make fun of your ideas or actively try to   46   you. Often their efforts are only attempts to protect you from   47  . But obviously failure is only a possibility if you stop. If you keep   48  , a “failure” is just another learning   49  . Besides, giving up on a heartfelt goal is worse than failing. “Many people die”, said Wendell Holmes, “  50   their music still in them.” That’s true tragedy.

          So listen   51   to the worries and criticisms of your friends and family, and do your best to put their   52   at ease, but then carry on. Listen last to your own heart. You   53   yourself better than anyone on earth. Make sure your song is   54  .  

          Listen to your own heart. Don’t let your music   55   with you.

          36.A.set sail                          B.take charge                 C.set free                         D.take off

          37.A.excited                          B.pleased                         C.disappointed               D.a(chǎn)ffected

          38.A.self-centered              B.self-confident              C.kind-hearted               D.cold-blooded

          39.A.show off                       B.show up                        C.pick out                         D.pick up

          40.A.parents                         B.neighbors                     C.students                       D.children

          41.A.fight                               B.beat                               C.command                     D.a(chǎn)ttend

          42.A.foolishly                        B.secretly                        C.bravely                          D.honestly

          43.A.late                                B.latter                             C.former                          D.later

          44.A.strength                       B.music                            C.wealth                          D.faith

          45.A.proud                            B.steady                           C.independent                D.famous

          46.A.  advise                         B.suggest                        C.stop                               D.keep

          47.A.success                         B.failure                           C.poison                           D.laziness

          48.A.stopping                       B.starting                        C.going                             D.coming

          49.A.method                         B.experiment                  C.schedule                       D.experience

          50.A.with                               B.beyond                          C.without                         D.during

          51.A.politely                          B.rudely                            C.thoroughly                   D.roughly

          52.A.homes                           B.minds                            C.businesses                            D.efforts

          53.A.trust                              B.believe                          C.know                             D.doubt

          54.A.finished                         B.completed                   C.written                         D.sung

          55.A.live                                 B.die                                  C.sound                            D.play

           

          查看答案和解析>>

          We were the only family with children in the restaurant. I sat Eric in a high chair and noticed everyone was quietly eating and talking. Suddenly, Eric screamed with 36 and said, “Hi there.” His fat baby hands hit the high chair tray, and his eyes were wide with excitement.

          I looked around and saw the 37 of his enjoyment. It was an old man with a worn and oily coat. And his hair was uncombed and unwashed. I was sure he  38 . His hand waved. “Hi there, baby; I see ya,” the man said to Eric.

          My husband and I 39  looks. Eric continued to laugh and answer, “Hi, there.” Everyone in the restaurant noticed this. My husband and I were embarrassed.

          We finally got through the meal and  40   the door. My husband went to pay the check and told me to meet him in the parking lot. The old man sat between me and the door. “Lord, just let me out of here before he speaks to me or Eric,” I prayed. As I drew closer to the man, I turned my back trying to sidestep him and avoid any air he might be 41 . As I did so, Eric leaned over my arm, reaching with both arms in a baby's “pick-me-up” position. Before I could stop him, he had  42 himself to the man's arms.Eric, in an act of total 43 , and love, laid his tiny head upon the man's torn shoulder.

          His  44  hands full of dirt, pain and hard labor gently, so gently, cradled my baby's waist and patted his back. I stood amazed. After a while, he pushed Eric from his chest 45 as though he were in pain, saying “God bless you, ma'am. You've given me the best Christmas gift.”

          I had just witnessed a genuine (pure or true) love shown through the innocence of a tiny child who saw no sin, who made no 46 . The ragged old man, unknowingly, had reminded me that a genuine love is one in which the true meaning of love is 47 .

          36. A. surprise    B. delight    C. anger        D. nerve

          37. A. source         B. reason    C. effect        D. resource

          38. A. smiled      B. mopped   C. smelled      D. wiped

          39. A. consulted   B. exchanged  C. separated     D. replaced

          40. A. ran for    B. headed for    C. sent for     D. accounted for

          41. A. breathing   B. fighting     C. creating     D. holding

          42. A. thrown      B. devoted     C. driven        D. jumped

          43. A. independence    B. desire    C. trust       D. dignity

          44. A. allergic    B. strong      C. smart       D. aged

          45. A. eagerly    B. violently   C. gladly         D. unwillingly

          46. A. judgment     B. decision   C. conclusion      D. choice

          47. A. sharpened     B refreshed     C. realized        D. learned

          查看答案和解析>>


          第二節(jié)完型填空(共20小題;每小題1分,滿分20分)
          閱讀下面短文,掌握其大意,然后從36—55各題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。
          When Winsion Chruchill was a young man, his father concluded that Churchill was “unfit for a career in law or politics” because he did so badly in school.
          When Charles Darwin was getting ready to  36  on his five-year expedition on The Beagle, his father was extremely  37  . he thought his son was falling into a life of sin and idleness.
          Gorge Washington’s mother was a complaining,   38  woman by all accounts. She thought little of Washington’s achievements and didn’t   39  at either of his presidential inaugurations(就職典禮). She was always  40  that her children overlooked her and she was especially angry when her son George ran off to  41  the army for the American Revolution. She   42  believed it was his duty to stay home and take care of her.
          In his youth, the  43  Leonard Bernstein, one of the most talented and successful composers in American history, was continually pressured by his father to  44  his music and do something worthwhile, like help out in his family’s beauty-supply business. After Leonard became  45  , his father was asked about that, and he answered, “Well, how was I supposed to know he was the Leonard Bernstein?”
          People may criticize you or make fun of your ideas or actively try to  46  you. Often their efforts are only attempts to protect you from  47  . But obviously failure is only a possibility if you stop. If you keep  48  , a “failure” is just another learning  49  . Besides, giving up on a heartfelt goal is worse than failing. “Many people die”, said Wendell Holmes, “with their  50  still in them.” That’s true tragedy.
          So listen  51  to the worries and criticisms of your friends and family, and do your best to put their minds  52  , but then carry on. Listen last to your own heart. You   53  yourself better than anyone on earth. Make sure your song is  54  .
          Listen to your own heart. Don’t let your music   55  with you.
          36.A.set sail         B.take charge      C.make progress  D.set examples
          37.A.excited        B.pleased        C.disappointed     D.a(chǎn)ffected
          38.A.self-confident   B.self-centered    C.kind-hearted     D.cold-blooded
          39.A.show off      B.show up       C.pick out       D.pick up
          40.A.claiming      B.expecting     C.complaining     D.declaring
          41.A.fight         B.beat          C.a(chǎn)ttend          D.command
          42.A.foolishly      B.secretly        C.bravely        D.honestly
          43.A.late          B.latter         C.former         D.later
          44.A.take up        B.give up        C.pick up        D.bring up
          45.A.proud          B.diligent        C.professional     D.famous
          46.A. advise        B.suggest        C.stop          D.keep
          47.A.failure        B.success        C.stop          D.keep
          48.A.stopping      B.starting        C.going              D.coming
          49.A.method        B.experiment       C.a(chǎn)pproach      D.experience
          50.A.music          B.a(chǎn)rticle          C.movie          D.poem
          51.A.politely       B.rudely         C.responsibly      D.a(chǎn)ctively
          52.A.in order       B.a(chǎn)t case         C.in use          D.a(chǎn)t war
          53.A.trust         B.believe        C.know         D.doubt
          54.A.finished       B.completed     C.written        D.sung
          55.A.live          B.die           C.sound          D.play

          查看答案和解析>>

           

              閱讀下面短文,從短文后各題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出可以填入空白處的最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。

          When Winston Churchill was a young man, his father concluded that Churchill was “unfit for a career in law or politics” because he did so badly in school.

          When Charles Darwin was getting ready to   1on his five-year expedition on The Beagle, his father was extremely   2. he thought his son was falling into a life of sin and idleness.

          George Washington’s mother was a complaining,   3woman by all accounts. She thought little of Washington’s achievements and didn’t   4at either of his presidential inaugurations(就職典禮). She was always complaining that her   5overlooked her and she was especially angry when her son George ran off to   6the army for the American Revolution. She   7believed it was his duty to stay home and take care of her.

          In his youth, the   8Leonard Bernstein, one of the most talented and successful composers in American history, was continually pressured by his father to give up his   9and do something worthwhile, like help out in his family’s beauty-supply business. After Leonard became   10, his father was asked about that, and he answered, “Well, how was I supposed to know he was the Leonard Bernstein?”

          People may criticize you or make fun of your ideas or actively try to   11you. Often their efforts are only attempts to protect you from   12. But obviously failure is only a possibility if you stop. If you keep   13, a “failure” is just another learning   14. Besides, giving up on a heartfelt goal is worse than failing. “Many people die”, said Wendell Holmes, “  15their music still in them.” That’s true tragedy.

          So listen   16to the worries and criticisms of your friends and family, and do your best to put their   17at ease, but then carry on. Listen last to your own heart. You   18yourself better than anyone on earth. Make sure your song is   19.

          Listen to your own heart. Don’t let your music   20with you.

          1.A.set sail           B.take charge      C.set free         D.take off

          2.A.excited            B.pleased          C.disappointed     D.a(chǎn)ffected

          3.A.self-centered      B.self-confident       C.kind-hearted     D.cold-blooded

          4.A.show off           B.show up          C.pick out         D.pick up

          5.A.parents            B.neighbors            C.students         D.children

          6.A.fight              B.beat             C.command          D.a(chǎn)ttend

          7.A.foolishly          B.secretly         C.bravely          D.honestly

          8.A.late               B.latter               C.former           D.later

          9.A.strength           B.music            C.wealth           D.faith

          10.A.proud         B.steady           C.independent      D.famous

          11.A.  advise          B.suggest          C.stop             D.keep

          12.A.success           B.failure          C.poison           D.laziness

          13.A.stopping          B.starting         C.going                D.coming

          14.A.method            B.experiment       C.schedule         D.experience

          15.A.with              B.beyond           C.without          D.during

          16.A.politely          B.rudely           C.thoroughly       D.roughly

          17.A.homes         B.minds            C.businesses           D.efforts

          18.A.trust             B.believe          C.know             D.doubt

          19.A.finished          B.completed            C.written          D.sung

          20.A.live              B.die              C.sound            D.play

           

          查看答案和解析>>

          1.C   2.A   3.B   4.D   5.C   6.B   7.D   8.C   9.B  10.A

            11.120°   12.3x+y-1=0   13.   14.10    15.100    16.(1),(4)

          17.解:(1)設(shè)拋物線,將(2,2)代入,得p=1. …………4分

          ∴y2=2x為所求的拋物線的方程.………………………………………………………5分

          (2)聯(lián)立 消去y,得到. ………………………………7分

          設(shè)AB的中點(diǎn)為,則

          ∴ 點(diǎn)到準(zhǔn)線l的距離.…………………………………9分

          ,…………………………11分

          ,故以AB為直徑的圓與準(zhǔn)線l相切.…………………… 12分

          (注:本題第(2)也可用拋物線的定義法證明)

          18.解:(1)在△ACF中,,即.………………………………5分

          .又,∴.…………………… 7分

          (2)

          . ……………………………14分

          (注:用坐標(biāo)法證明,同樣給分)

          19.

          解法一:(1)連OM,作OH⊥SM于H.

          ∵SM為斜高,∴M為BC的中點(diǎn),∴BC⊥OM.

          ∵BC⊥SM,∴BC⊥平面SMO.

          又OH⊥SM,∴OH⊥平面SBC.……… 2分

          由題意,得

          設(shè)SM=x,

          ,解之,即.………………… 5分

          (2)設(shè)面EBC∩SD=F,取AD中點(diǎn)N,連SN,設(shè)SN∩EF=Q.

          ∵AD∥BC,∴AD∥面BEFC.而面SAD∩面BEFC=EF,∴AD∥EF.

          又AD⊥SN,AD⊥NM,AD⊥面SMN.

          從而EF⊥面SMN,∴EF⊥QS,且EF⊥QM.

          ∴∠SQM為所求二面角的平面角,記為α.……… 7分

          由平幾知識(shí),得

          ,∴

          ,即所求二面角為. ……………… 10分

          (3)存在一點(diǎn)P,使得OP⊥平面EBC.取SD的中點(diǎn)F,連FC,可得梯形EFCB,

          取AD的中點(diǎn)G,連SG,GM,得等腰三角形SGM,O為GM的中點(diǎn),

          設(shè)SG∩EF=H,則H是EF的中點(diǎn).

          連HM,則HM為平面EFCB與平面SGM的交線.

          又∵BC⊥SO,BC⊥GM,∴平面EFCB⊥平面SGM. …………… 12分

          在平面SGM中,過O作OQ⊥HM,由兩平面垂直的性質(zhì),可知OQ⊥平面EFCB.

          而OQ平面SOM,在平面SOM中,延長OQ必與SM相交于一點(diǎn),

          故存在一點(diǎn)P,使得OP⊥平面EBC. ……………………… 14分

            1.  

              ∵底面邊長為1,∴,

              ,

              .    ……………… 1分

              設(shè),

              平面SBC的一個(gè)法向量,

              ,

              ∴y=2h,n=(0,2h,1).… 3分

              =(0,1,0),由題意,得.解得

              ∴斜高. …………………………………………………… 5分

              (2)n=(0,2h,1)=,

              由對(duì)稱性,面SAD的一個(gè)法向量為n1. ………………………………6分

              設(shè)平面EBC的一個(gè)法向量n2=(x,y,1),由

              ,得

               解得.………………… 8分

              設(shè)所求的銳二面角為α,則

              ,∴.…………… 10分

              (3)存在滿足題意的點(diǎn).證明如下:

              . ………………………… 11分

              ,令與n2共線,則. ……………… 13分

              .故存在P∈SM,使OP⊥面EBC.……………………… 14分

              20. 解:(1)當(dāng)n為奇數(shù)時(shí),an≥a,于是,. ………………3分

                       當(dāng)n為偶數(shù)時(shí),a-1≥1,且an≥a2,于是

              =. …………6分

              (2)∵,,,∴公比.……9分

              . …………………………………………10分

              (注:如用求和公式,漏掉q=1的討論,扣1分)

               . ……………12分

              .……15分21.解:(1)∵,,∴,∴. 1分

              ,即,∴. …3分

              ①當(dāng),即時(shí),上式不成立.………………………………………………4分

              ②當(dāng),即時(shí),.由條件,得到

              ,解得. ……………………………………………5分

              ,解得.…………………………………………6分

               m的取值范圍是. ………………………………………7分

              (2)有一個(gè)實(shí)根.………………………………………………………………………………9分

              ,即

              ,則

              ,,. ………………………10分

               △>0,故有相異兩實(shí)根

              ,∴ 顯然,,

              ,∴,∴. …………12分

              于是

                                  

              為三次函數(shù)的極小值點(diǎn),故與x軸只有一個(gè)交點(diǎn).

              ∴  方程只有一個(gè)實(shí)根.…………………………15分

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