题目内容
19.While _____ down the street the other day,I happened to find a small wallet.( )A. | walking | B. | walked | C. | to walk | D. | was walking |
分析 几天前在街上的时候,我碰巧发现一个小钱包.
解答 答案:A.根据句式While _____ down the street the other day可以看出这是省略了I was的一个时间状语从句,所以选择A.其他选项与句义不符,B表示被动,与句义不符,C不能做时间状语;D缺少主语.
点评 考查现在分词做状语.当从句的主语和主句的主语一致时,可以省略主语和be动词,例如:
when(he is) reading a book,he often listens to music.

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