3.实验室用加热KMnO4固体的方法制取氧气,下列仪器中不需要的是
A B C D
2.化学科学常需要借助化学专用语言来描述,下列化学用语与其含义相符的是
|
C. Al ----铝离子 D. P----1个氟原子
1.下列变化属于化学变化的是
A. 彩纸折成纸鹤 B. 白雪缓慢消融 C. 葡萄酿成美酒 D. 霓虹灯光闪烁
10.( ) The conference had been held to discuss the
effects of tourism ____ the wildlife in the
area. (2003 上海)
A. in B. on
C. at D. with
[解析]选B此题考查固定搭配“have effects on sth.”。
9. They had a pleasant chat ____ a cup of coffee.
(2003 北京)
A. for B. with
C. during D. over
[解析]选D。 over在此意为“一边……,一边……”
8. There are altogether eleven books on the shelf,
____ five are mine. (2004 全国)
A. on which B. in which
C. of which D. from which
[解析]选c此句考查非限制性定语从句,且什么
当中的几个要用of。
7. Tony is going camping with ____ boys.
A. little two other B. two little other
C. two other little D. little other two
[解析]选C 本题考查多个形容词修饰一个名词的
用法。
6. -- Do you like ____ here'?
-- Oh, yes. The air, the weather, the way of
life. Everything is so nice. (2004 全国II)
A. this B. these
C. that D. it
[解析]选D此题考查代词的用法联系下文可知
it此处是“不定指代”
5. Americans eat ____ vegetables per person today
as they did in 1910. (2002上海)
A. more than twice
B. astwice asmany
C. twice asmany as
D. more than twice as many
[解析]选(:本题考查倍数的表达法。
4.( ) It is said in Australia there is more land than the
govemment knows ____. (NMET 2003)
A. it what to do with B. what to do it with
C. what to do with it D. to do what with it
[解析]选C what + 不定式在句中做know的宾语。
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