7.设双曲线的虚轴长为2,焦距为,则双曲线的渐近线方程为
A. B. C. D.
6.函数的单调递增区间是( )
A. B. C. D.
5.函数与函数的图象关于( )
A.轴对称 B.轴对称 C.直线对称 D.原点对称
4.下列函数中,与函数有相同定义域的是( )
A. B. C. D.
3.设,则“”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.已知函数,则的值为( )
A.1 B.2 C.-1 D.-2
1.已知集合,,则( )
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]选A 本题考查insist表示“坚持”时所带的
宾语从句用虚拟,即:insist that sb. (should) do sth. 所以
本题选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 江苏)
A. will not be sent; that
B. not be sent; that
C. should not be sent; what
D. should not send; what
[解析]选B 本题既考查了虚拟语气的用法,又考
查了表语从句的用法。由necessary引导的主语从句或宾
语从句,需要用shouId do,而他是要“被派往”迈阿密,所以
第一空用(should)not be sent,而第二空在be动词之后需
要用一个表语从句,由于句子结构完整,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]选B 本题考查if引导的虚拟语气结构。从
I'd like to go...判断,本句为与现在事实相反,故选B。
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