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   【小题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   【小题2】 on the wall with a hand mirror.
Why do they want to do this? The sun’s rays could be   【小题3】  in many ways. They could light up   【小题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) 【小题5】 icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.

Answer 1

【小题1】used  
【小题2】dance 
【小题3】helpful
【小题4】cities
【小题5】dangerous

解析试题分析：
【小题1】句意：它被用于捕捉太阳的射线。 be used to do sth. 被用于做某事。  
【小题2】句意：就像孩子用小镜子使阳光在墙上跳舞。 make +宾语+do sth. 使……做……。故此处用动词原形dance。   
【小题3】句意：太阳的光线在许多方面多很有用。根据They could light up可知此处是说阳光的和用途，又因位于be 动词后用形容词helpful。
【小题4】句意：他们能在黑夜照亮城市。结合句意可知此处用名词复数cities 。
【小题5】句意：他们能融化海洋里危险的冰川。修饰icebergs in the ocean.可知大洋里的冰山容易让船只翻船，因此是危险的，因修饰名词icebergs故用形容词dangerous。
考点：选词填空。