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
25. With world economic crisis_________, people appeal to the government for more unemployment benefits.
A.worsening B.worsened C.gone bad D.went bad
24. I didn't want to be _________________ with politics at all.
A.dealt B.associated C.involved D.consulted
23. The job will be offered to is capable of performing it well.
A.whomever B.whoever C.the one D.anyone
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
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
22.(本小题满分14分)若存在实常数和,使得函数和对其定义域上的任意实数分别满足:和,则称直线为和的“隔离直线”.已知,(其中为自然对数的底数).
(1)求的极值;
(2) 函数和是否存在隔离直线?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
21. (本小题满分12分)已知圆:交轴于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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