题目内容

【题目】whenwhile完成句子。

1What were you doing _____ the accident happened?

2I was sleeping _____ my mother was cooking.

3____ Mary was reading, Lisa arrived.

4______ Susan was ten, she could play the guitar.

5Jim was walking in the street ___ he found a watch.

【答案】

1when

2while

3While/When

4When

5when

【解析】

1句意:当事故发生时,你正在干什么?

根据题干可知happened是短暂性动词,从句用一般过去时,用when不用while。故答案为when

2句意:当我妈妈在做饭时,我正在睡觉。

根据题干可知,主句和从句都是过去进行时,用while不用when。故答案为while

3句意:Mary正在读书时,Lisa到了。

根据题干可知,主句是一般过去时,从句是过去进行时,从句前即可用when,也可用while;句子开头首字母大写。故答案为While/When

4句意:当Susan十岁时,她能够弹吉他。

根据题干可知,复合句中主句和从句都是一般过去时,表示两个单一行为,用when引导时间状语从句;句子开头首字母要大写。故答案为When

5句意:当Jim找到手表的时候,他正在街上散步。

根据题干可知,复合句中主句是过去进行时,从句用一般过去时,要用when引导时间状语从句。故答案为when

whenwhile的使用:(1)当前后两个句子都是进行时的时候,要用while(2)当前后都是单一行为(非进行时)的时候,通常用when,且这两个单一行为通常是紧接着发生的;(3)当前后两个句子,一个是进行时,一个是单一行为时,则进行时前面可接while或是when,而单一行为前则只能用when。如第4小题中,主句和从句都是单一行为,此时用连词when

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