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3.實驗室用加熱KMnO4固體的方法制取氧氣,下列儀器中不需要的是 

 

A         B         C        D

試題詳情

2.化學科學常需要借助化學專用語言來描述,下列化學用語與其含義相符的是

+3
 
A. 3N ----3個氮元素            B. O2 ----氧氣

C. Al ----鋁離子              D. P----1個氟原子

試題詳情

1.下列變化屬于化學變化的是 

A. 彩紙折成紙鶴   B. 白雪緩慢消融  C. 葡萄釀成美酒   D. 霓虹燈光閃爍

試題詳情

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]選B此題考查固定搭配“have effects on sth.”。

試題詳情

9. They had a pleasant chat ____ a cup of coffee.

       (2003  北京)

       A. for        B. with

       C. during        D. over

[解析]選D。 over在此意為“一邊……,一邊……”

試題詳情

8. There are altogether eleven books on the shelf,

     ____ five are mine.  (2004  全國)

A. on which      B. in which

C. of which       D. from which

   [解析]選c此句考查非限制性定語從句,且什么

當中的幾個要用of。

試題詳情

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]選C  本題考查多個形容詞修飾一個名詞的

用法。

試題詳情

6. -- Do you like ____ here'?

   -- Oh, yes. The air, the weather, the way of

   life. Everything is so nice.  (2004  全國II)

   A. this         B. these

   C. that        D. it

   [解析]選D此題考查代詞的用法聯(lián)系下文可知

it此處是“不定指代”

試題詳情

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]選(:本題考查倍數(shù)的表達法。

試題詳情

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]選C  what + 不定式在句中做know的賓語。

試題詳情


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