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.a(chǎn)ny, 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
第一節(jié):單項填空;共15小題;每小題1分,滿分15分
21.Expo 2010 Shanghai will offer ___ wonderful opportunity for ___ cross-cultural dialogues.
A.a(chǎn) , 不填 B.a(chǎn); the C.不填; the D.the, 不填
22.(本小題滿分14分)
已知曲線
過
上一點
作一斜率為
的直線交曲線
于另一點
,點列
的橫坐標(biāo)構(gòu)成數(shù)列
,其中
.
(I)求
與
的關(guān)系式;
(II)令![]()
,求證:數(shù)列
是等比數(shù)列;
(III)若
(λ為非零整數(shù),
),試確定λ的值,使得對任意
.都有cn+1>cn成立。
21.(本小題滿分12分)
已知函數(shù)
,其中
為實常數(shù)。
(1)當(dāng)
時,
恒成立,求
的取值范圍;
(2)求函數(shù)
的單調(diào)區(qū)間。
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