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2018考研英语语法引导时间状语从句

2017-09-14 17:29 | 考研集训营

2018考研英语的复习需要考生重点复习各个语法知识,熟悉语法知识对英语翻译,写作,以及阅读理解的解题能力有很大的帮助,小编整理了一些英语语法大全知识,本次主要分享一些连词相关知识。 连词是用来连接词、短语、从句或句子的词。连词不作成分,接下来看一下引导时间状语从句的连词有哪些?

5、引导时间状语从句的从属连词

有:before, after, when, while, as, till, until, since, as soon as等。

After they had planted their crops, they took a rest.

We have learned six lessons since he began to teach us.

As soon as he gets to Beijing, he’ll call me.

1) when, while, as 都表示“当……时”,when从句谓语动词既可以是瞬间动词也可以是延续性动词,可用于主从句动作同时发生或从句动作先于主句动作发生。while从句谓语动词只能是延续性动词,侧重主从句动作同时发生。as引导一个持续性动作,多用于主从句动作同时发生,强调“一边……一边”。

When I came in, my father was cooking.

I came in when/while my father was cooking.

He sang as he walked.

2)until用法:当主句谓语动词是延续性动词时,主从句都用肯定式,译为“直到……为止”;当主句谓语动词是瞬间动词时,主句用否定式,从句用肯定式,即not…..until, 译为“直到……才”。

Mr. Green waited until his children came back.(格林先生一直等到他的孩子们回来)

Mr. Green didn’t go to bed until his children came back. (格林先生直到他的孩子们回来才睡觉)

以上就是2018考研英引导时间状语从句的连词语法,2018考研复习正在紧张的进行着,小编将会持续更新英语语法大全知识,敬请关注!

推荐阅读:2018考研英语语法大全汇总

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