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5.The conference has been held to discuss the     of global warming on people’s lives all over the world.

    A.importance                   B.effects        C.protection     D.attitudes

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4.一Why didn't you come to Mike’s birthday party yesterday?

    -Well,I    , but I had something important to do at the moment.

    A.should        B.must         C.should have   D.must have

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3.Many of the scientists and engineers are judged     how great their achievements are.

    A.in spite of     B.in charge of                   C.in favor of     D.in terms of

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2.You will have to wait for one more week,     the manager will be back from his trip.

    A.after         B.while         C.when         D.since

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第一节:单项填空(共20小题;每小题0.5分,满分10分)

    从A、B、C、D四个选项中,选出可以填人空白处的最佳选项。

1.Sad to say,nowadays many people are still in     habit of writing silly things in    public places.

    A.the;不填      B.不填;不填     C.the; the       D.不填;the

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2.将选定的题号按规定要求先用2B铅笔填写在答题纸上的“题号”框内,确定后再用签字笔或钢笔描黑,否则答题视作无效。

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22.已知过点A(-4,0)的动直线与抛物线相交于B、C两点。当的斜率是

  (1)求抛物线C的方程;

  (2)设BC的中垂线在y轴上的截距为b,求b的取值范围。

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21.已知函数处有两上不同的极值点,设在点处切线为其斜率为;在点利的切线为,其斜率为

  (1)若

  (2)若,求的取值范围。

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19.已知

  (1)求的最大值及取得最大值时相应的x的值;

  (2)若函数上恰有两上零点的值。

  20.如图,三棱柱ABC-A1B1C1,侧棱与底面垂直,AB=AC=1,AA1=2,P、Q、M分别是棱BB1、CC1、B1C1的中点,AB⊥AQ。

  (1)求证:AC⊥A1P;

  (2)求证:AQ//面A1PM;

  (3)求AQ与面BCC1B1所成角的大小。

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