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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

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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

+3
 
A. 3N ----3个氮元素            B. O2 ----氧气

C. Al ----铝离子              D. P----1个氟原子

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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

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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.”。

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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……”

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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。

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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。

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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”

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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。

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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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