7.設雙曲線的虛軸長為2,焦距為,則雙曲線的漸近線方程為
A. B. C. D.
6.函數的單調遞增區(qū)間是( )
A. B. C. D.
5.函數與函數的圖象關于( )
A.軸對稱 B.軸對稱 C.直線對稱 D.原點對稱
4.下列函數中,與函數有相同定義域的是( )
A. B. C. D.
3.設,則“”是“”的( )
A.充分不必要 B.必要不充分 C.充要 D.既不充分也不必要
2.已知函數,則的值為( )
A.1 B.2 C.-1 D.-2
1.已知集合,,則( )
A. B. C. D.
10. -- How do you ____ we go to Beijing for our
holidays?
-- I think we'd better fly there. It's much more
comfortable. (2004福建)
A. insist B. want
C. suppose D. suggest
[解析]選A 本題考查insist表示“堅持”時所帶的
賓語從句用虛擬,即:insist that sb. (should) do sth. 所以
本題選A。
9. -- Don't you think it necessary that he ____ to
Miami but to New York?
-- I agree, but the problem is ____ he has
refused to. (2005 江蘇)
A. will not be sent; that
B. not be sent; that
C. should not be sent; what
D. should not send; what
[解析]選B 本題既考查了虛擬語氣的用法,又考
查了表語從句的用法。由necessary引導的主語從句或賓
語從句,需要用shouId do,而他是要“被派往”邁阿密,所以
第一空用(should)not be sent,而第二空在be動詞之后需
要用一個表語從句,由于句子結構完整,所以用that。
8.( ) If I ____ plane to do anything I wanted to, I'd
like to go to Tibet and travel through as much of
it as possible. (2005湖北)
A. would B. could
C. had to D. ought to
[解析]選B 本題考查if引導的虛擬語氣結構。從
I'd like to go...判斷,本句為與現在事實相反,故選B。
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