4. “”是“方程
表示雙曲線”的
( )
A.充分不必要條件 B. 必要不充分條件
C. 充要條件 D. 既不充分也不必要條件
3.已知是兩條不同直線,
是三個不同平面,下列命題中正確的是( )A.
B.
C. D.
2.橢圓的焦點在y軸上,長軸長是短軸長的兩倍,則m的值為 ( )
A. B.
C. 2
D.4
1.若復(fù)數(shù)為純虛數(shù),則實數(shù)的值為
( )
A.
B.0 C.2
D.
或2
10.( ) People may have different opinions about Karen,
but I admire her. ____, she is a great
musician.
A. After all B. As a result
C. In other words D. As usual
[解析]選A after all“畢竟”;as a resuIt“結(jié)果是”;in
other words“換句話說”;as usual“像往�!�。
9. I shall stay in the hotel aIl day ____ there is
news of the missing c hild.(2002年上海春)
A. in case B. nomatter
C. in any case D. ever since
[解析]選A in case為連詞,意為“萬一,以防”。
8.( ) All morning as she waited for the medical report
from the doctor, her nervousness ____. (2003
年全國)
A. has grown B. is growing
C. grew D. had grown
[解析]選C 根據(jù)all morning和時間狀語從句中的
謂語動詞,可判斷出應(yīng)用一般過去時。一般過去時可用于
表示過去經(jīng)�;蚍磸�(fù)發(fā)生的動作。
7.( ) The journey around the world took the old sailor
nine months ____ the sailing time was 226
days. (2004 全國III)
A. of which B. during which
C. ftomwhich D. for which
[解析]選A 根據(jù)句意,填空部分為“其中”之意。
6.( ) We'll be shown around the city: schools,
museums and some other places, ____ other
visitors seldom go. (2002 北京市)
A. what B. which
C. where D. when
[解析]選C some other places為先行詞,定語從句
中的go為不及物動詞,表地點的先行詞在定語從句中作
狀語。
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