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  4. 【英语语法】时间状语从句的用法

【英语语法】时间状语从句的用法

2012/10/8 2555 JJ
【英语语法】时间状语从句的用法,珠海IBS英语学校编辑和大家分享时间状语从句的用法和什么是状语从句,请阅读下文. 什么是状语从句?状语从句即指在主从复合句用作状语的从句.

英语语法时间状语从句的用法英语培训学校编辑和大家分享时间状语从句的用法和什么是状语从句,请阅读下文。

什么是状语从句?

状语从句即指在主从复合句用作状语的从句。按照其意义,状语从句可分为时间状语从句、地点状语从句、原因状语从句、目的状语从句、结果状语从句、条件 状语从句、让步状语从句,方式状语从句、比较状语从句等。状语从句是英语学习 中的一个语法重点,也是历年高考、四六級和专升本等重大考试重点考查的内容之一。学习状语从句主要应注意引导状语从句的从属连词的用法与区別,以及从属 连词在一定的语言环境中的意义与用法。


时间状语从句的用法

1.引导时间状语从句的从属连词很多,常见的有before, after, when, while  as, since,till, until, as soon as等。如:

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

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

It's a long time since I met you last. 从上次见到你,已有很长时间了 。

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


2. 表示"当...时候"的while, when, as的用法区别是:while从句中的谓语动词 必须是延续性动词;表示带有规律性的"每当"或当主、从句谓语动词的动作发生 有先后时,只能用when;当表示"一边...一边..."或"随着"时,只能用as。另外,用 于此意的as所引导的时间状语从句谓语只能是动作动词,不能是状态动词。如下 面考题的答案是B而不能

A:"I'm going to the post office. " "__you 're there» can you get me some stamps?"

A. As      B. While      C. Because      D. If


3.until在肯定句中通常只连用延续性动词,表示相应动作结束的时间;在否定 句中通常用not — until这一固定搭配,意为"直到…才"。如:

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

I did not begin to work until he had gone.他走了后我才升始工作。


4.表示"一...就..."除用as soon as外,还可用the moment , the minute ,the second , the instant , immediately , directly , instantly , no sooner .......than , hardly ......when , scarcely......before等。如:

I came immediately you called.你一来电话我就来了 。

Hardly (No sooner / Scarcely) had she arrived when ( than / before) it began to snow.

她刚到就下起雪来了 。

The moment I have finished I'll give you a call. 我一干完就给你打电话。


5.every time, each time» (the) next time, (the) last time, by the time,the first time, any time等以time结尾的词语也可用作连词,引导时间状语从句。如:

Next time you come in, please close the door. 

下次你进来,请关门。

He didn't tell me anything the last time I saw him.

上次我见到他时他什么也没告诉我。

By the time I got home' she had already gone to bed.

我到家时她已睡觉了。


6.as引导的时间状语从句的谓语特点

Das引导时间状语从句表示"当...的时候"、"在...期间"时,该从句的谓 语通常是那些表示动作意义的动词,而不能是be(是、在),have(有),like(喜欢), belong (属于)等表示状态或静态意义的动词。

如:

我打算去邮局。当你在邮局的时候,请帮我买几张邮票好吗?

【误】 I'm going to the post office. ―As you are there ,can you get me some stamps?

【正】 I ,m going to the post office. ―While you are there, can you get me some stamps?


(2) 正因为as引导时间状语从句表示"当......的时候"、"在......期间"时,从 句的谓语不能是表示状态或静态,所以当下面第一句变为第二句这样的状语从句 时,不能再用as,而应用when。如:

As a student he had known great poverty. =When he was a student he had known great poverty.


(3) 但是,当as引导原因状语从句吋,其谓语动词可以是状态或静态动词如:

As there was very little support , the strike was not successful. 

由于支持者很少,罢工未获成功。

As I was anxious to please him, I bought him a nice present.

因为我急于讨好他,我给他买了一件精美礼品。

As there isn 't anything more to do, I may as well go home early.


7.与时间状语从句有关的时态问题关于这个问题有两点值得注意: 


(1)当主句为将来时态或具有将来意义时,时间状语从句通常要用一般现在 时表示将来意义,而不能直接使用将来时态。如: Turn off the lights before you leave.走前关灯。

I will tell him as soon as he arrives.他一来我就告诉他。 


(2)与since从句搭配的主句的时态通常是现在完成时态。如: 

He has lived here since 1999.

自1999年以来,他就一直住在这儿。 

Where have you been since I last saw you?

自我上次见到你之后你到哪里去了?

【注】在特定的语言环境中有时也可能用过去完成时或一般现在时。

如: 

It seems like years since we last met.我们似乎几年未见面了 。 

Yesterday he told me that he hadn't eaten anything since Tuesday. 

他昨天告诉我自星期二以来他一直未吃任何东西。

上文是7点关于时间状语从句的用法!


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