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时间状语从句用法归纳

Marine整理 2017-12-08 00:00
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时间状语从句算是所有状语从句类型中最简单易懂的一类了,但是它有着数量不少的引导词,很容易混淆或者遗忘,小编这次就为大家带来时间状语从句的用法归纳,一起来看看吧!

1. 用when引导:when表示“当……时候”。如:

Things were different when I was a child. 我小时候情况与现在不同。

People breathe more slowly when they are asleep. 人睡觉时呼吸比较缓慢。

2. 用while引导:while表示“当……时候”。如:

We must strike while the iron is hot. 我们要趁热打铁。

I went swimming while the others played tennis. 我去游泳,其余的人都打网球去了。

注意:while 所引导的时间状语从句中谓语动词必须是持续性的,不能是短暂性的。

3. 用as引导:as表示“当……时候”“随着”。如:

He dropped the glass as he stood up. 他站起来时,把杯子摔了。

We get wiser as we get old. 随着年岁的增长,我们也变得聪明些了。

4. 用before引导:before表示“在……之前”。如:

Turn off the lights before you go to bed. 睡觉前要关灯。

Before he went to university he was a worker. 上大学之前他是工人。

5. 用after引导:after表示“在……之后”。如:

I will tell you after they leave. 他们走我再告诉你。

After you finish the letter show it to me.信写完后给我看看。

6. 用until / till引导:until / till表示“直到……”。如:

He waited until she was about to leave. 他等着一直到她准备离开。

I watched him until he disappeared in the distance. 我瞧着他直到他在远处消失。

这类句型的主句动词通常只能是延续性动词,不能是终止性动词。但是,在否定句中,主句动词可以是终止性动词,此时构成not…ntil [till]…句式,意为“直到……才……”。如:

She didn’t marry until she was over fifty. 她直到五十多岁才结婚。

We’d better not go until your sister arrives. 我们最好等你姐姐到了再走。

7. 用since引导:since表示“自从……以来”。如:

We have known each other since we were children. 我们从小认识。

They’ve moved twice since they got married. 他们结婚后已搬了两次家。

这类句子的主句通常用现在完成时。但是,当主句表示一段时间时,可用一般现在时代替现在完成时。如:

It’s a long time since we met last. 好久没见面了。

How long is it since you came in London? 你来伦敦有多久了?

以上就是关于时间状语从句的用法归纳了,大家都记住几点了呢?内容虽然比较繁杂,但千万不要因此就放弃哦,只有坚持下才能有所收获!

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