5.下列四個(gè)函數(shù)中,圖像如右圖所示的只能是 ( )
A.
B.
C.
D.
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(gè)不同平面,下列命題中正確的是( )A. B.
C. D.
2.橢圓的焦點(diǎn)在y軸上,長(zhǎng)軸長(zhǎng)是短軸長(zhǎng)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(shí)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(shuō)”;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(wàn)一,以防”。
8.( ) All morning as she waited for the medical report
from the doctor, her nervousness ____. (2003
年全國(guó))
A. has grown B. is growing
C. grew D. had grown
[解析]選C 根據(jù)all morning和時(shí)間狀語(yǔ)從句中的
謂語(yǔ)動(dòng)詞,可判斷出應(yīng)用一般過(guò)去時(shí)。一般過(guò)去時(shí)可用于
表示過(guò)去經(jīng);蚍磸(fù)發(fā)生的動(dòng)作。
7.( ) The journey around the world took the old sailor
nine months ____ the sailing time was 226
days. (2004 全國(guó)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(yǔ)從句
中的go為不及物動(dòng)詞,表地點(diǎn)的先行詞在定語(yǔ)從句中作
狀語(yǔ)。
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