Question

根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。

Scientists would like to put a huge mirror in space above the earth. It might be sixty miles wide. It would be   1.  to catch the rays of the sun. it would direct the sun’s rays on the earth as a child might do to make sunlight   2.  on the wall with a hand mirror.

   Why do they want to do this? The sun’s rays could be   3.   in many ways. They could light up   4.   by night. The warm rays could stop frosts(霜冻) which might come at night and hurt fruit and crops. They could melt（融化) 5. icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.

 

Answer 1

【答案】

 

1.used                   

2.dance   

3.helpful

4.cities

5.dangerous

【解析】

试题分析：

1.根据句意：它将被用来追赶太阳光，可知填写used   ，be used to do sth被用来做某事。

2.make sb do sth让某人做某事，前面已使用了动词use，只剩下一个动词dance，所以填写dance。

3.be helpful有帮助，，故填写helpful。

4.根据句意：他们会在夜晚照亮城市，可知填写cities。

5.只剩下一词danger，用于修饰后面的名词icebergs ，所以用形容词形式dangerous。

考点：选词填空。