[英语]when/while引导的从句,主句和从句时态的使用.

2022-08-09 教育 94阅读

1、由when引导的时间状语从句,主句用过去进行时,从句用一般过去时。如:

He didn’t tell me when we should meet again. 他没有告诉我什么时候我们能再见面。

When he was still a little boy,Jack London wrote some compositions which were praised by his teachers.杰克·伦敦还是小孩时,他写的一些作文就受到老师的赞赏。

2、while通常用在事情同时发生的情况,主句和从句都用过去进行时。如:

Mother was cooking the meal while i was doing my homework。我做作业时,妈妈正在做饭。

She got married while she was working as a waitress。她在饭店当服务生期间结婚了。

扩展资料:

1、主句是一般现在时,从句时态不变。

He says (that) he will leave a message on my desk.他说他将在我桌上留言。

They know (that) he is working hard.他们知道他在努力工作。

2、主句是一般过去时,从句为各种相应过去时态。

He answered that he was listening to me.他回答说他在听我说话。

3、主句是一般将来时,一般从句为一般现在时(“主将从现”)。

4、当从句所叙述的事实为一个定理或客观存在时,无论主句是什么时态,从句均用一般现在时。但与人有关的均不是定理。

He told me that he was a boy. 他告诉我他是个男孩。

(虽然性别是客观存在的,但“男”“女”也是人为定义的,故非第4种情况)

Father told me that practice makes perfect. 父亲告诉我,熟能生巧。

(所叙述的事实为一个定理,用一般现在时)

参考资料来源:百度百科-从句

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