27.----- Did Mary come to the party?
------ I don’t know.She _______ while I was out.
A.may have come B.must have come
C.might come D.could come
26.I haven’t seen ____ of her films, but _____ from the one I have seen recently, I think she’s a
promising actress.
A.any, judging B.both, judging C. either, judged D. none, judged
25. her leg was wounded, she up the stairs.
A.In spite of; managed to get B.In spite of; succeeded getting
C.Although; managed getting D.Although; managed to get
24.If you live in the country or have ever visited there, ___ are that you have heard birds singing to welcome the new day.
A.situations B.facts C.chances D.possibilities
23.This is the second time Nie Haisheng ______ to be the astronaut who took the glorious task.
A.has been chosen B.had been chosen
C.was chosen D.chose
22.This _____ girl is Linda’s cousin..
A.pretty little Spanish B.Spanish little pretty
C.Spanish pretty little D.little pretty Spanish
第一节:单项填空;共15小题;每小题1分,满分15分
21.Expo 2010 Shanghai will offer ___ wonderful opportunity for ___ cross-cultural dialogues.
A.a , 不填 B.a; the C.不填; the D.the, 不填
22.(本小题满分14分)
已知曲线过上一点作一斜率为的直线交曲线于另一点,点列的横坐标构成数列,其中.
(I)求与的关系式;
(II)令,求证:数列是等比数列;
(III)若(λ为非零整数,),试确定λ的值,使得对任意.都有cn+1>cn成立。
21.(本小题满分12分)
已知函数,其中为实常数。
(1)当时,恒成立,求的取值范围;
(2)求函数的单调区间。
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