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26. Human facial expressions differ from those of animals in the degree ______ they can be controlled on purpose.

A. with which      B. to which       C. of which      D. for which

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25. With world economic crisis_________, people appeal to the government for more unemployment benefits.

  A.worsening    B.worsened     C.gone bad      D.went bad

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24. I didn't want to be _________________ with politics at all.

    A.dealt          B.associated       C.involved        D.consulted

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23. The job will be offered to     is capable of performing it well.

    A.whomever     B.whoever  C.the one      D.anyone

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22. Although the small room is     the large one, it is more beautifully decorated.

    A.one- third the size of       B.the one- third size of

    C.the size of one-third    D.one-third of the size

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第一节 单项填空(共15小题;每小题1分,满分15分)

从A、B、C和D四个选项中,选出可以填入空白出的最佳选项。

21. Panama,____ country in Central America, is the only place in the world ____ someone can see the sun rise on the Pacific Ocean and set on the Atlantic.

A. the, in what          B. a, where          C. /, where          D. a, which

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22.(本小题满分14分)若存在实常数,使得函数对其定义域上的任意实数分别满足:,则称直线的“隔离直线”.已知(其中为自然对数的底数).

(1)求的极值;

(2) 函数是否存在隔离直线?若存在,求出此隔离直线方程;若不存在,请说明理由.

福建省古田县第一中学2010届高三上学期单科质量检查

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21. (本小题满分12分)已知圆:轴于A,B两点,曲线是以AB为长轴,离心率为的椭圆,其左焦点为F,若P是圆上一点,连结PF,过原点作直线PF的垂线交直线x=-2于点Q.

(Ⅰ)求椭圆的标准方程;

(Ⅱ) 当点P在圆上运动时(不与A、B重合),求证:直线PQ与圆相切.

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