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as引导时间状语从句用法

as引导时间状语从句用法

2023-12-27 15:43364浏览

as引导时间状语从句的时候,其动作必须是可延续性的动作。主要是用来强调主句和从句动作同时发生的,当然as也可以用来强调动作的先后顺序。 

as引导时间状语从句用法

As引导的时间状语从句时,表示“同一时间发生”,“随着”,“一边……一边……”:

例:As she grew older, she kept more to herself.

随着年龄的增长,她变得更沉默了。

例:The students took notes as they listened carefully.

学生们一边认真听讲,一边做笔记。

【As soon as: 表示“一……就……”的时间状语从句】

例:As soon as he got home, the phone rang.

他一到家,电话就响了。

as还可以引导什么状语从句

1、As引导原因状语从句

As引导原因状语从句时,意思是“因为、由于”语气较弱,所表达的原因指比较明显,或是已知的事实:

例:As you were out, I left a message.

你不在,所以我留了一张字条儿。

2、As引导让步状语从句

As引导让步状语从句时,必须以部分倒装的形式出现,被倒装的部分可以是表语、状语或动词原形。As表示“虽然”:

例:Young as he is, he knows a lot.

尽管他很年轻,但是他知道很多事情。

例:Try as he might, he couldn't open the door.

他想尽了办法也没能打开门。

【注意】though可以放在句首,也可以用在上述倒装结构中,即Young though he is, he knows a lot. 但是,although不可以用于这种倒装结构。

3、As引导的比较状语从句

as引导比较状语从句,其基本结构是as……as。前一个as是副词,第二个as是引导比较状语从句的连词,意思是“像……一样”:

1)结构1:as+形容词或副词+as

例:You're as tall as your father.

你和你父亲一样高。

2)结构2:as+形容词+a(n)+可数名词单数+as

例:He is as clever a boy as Tom

他是像汤姆一样聪明的孩子。

4、As引导的方式状语从句

as引导方式状语从句时,表示“正如,像……”:

例句:They did as I had asked.

他们是按照我的要求做的。

When in Rome, do as the Romans do.

入乡随俗。

as相关短语有哪些

1.As quickly as possible:尽快地

The boy shall be saved as quickly as possible.

这个男孩应该被尽快抢救

2.As soon as possible:尽快地

The work must be finished as soon as possible

这项工作必须尽快完成

3.as much as possible:尽可能地;

Their parents believe it necessary for them to make full use of weekends and learn as much as possible.

他们的父母认为他们有必要充分利用周末,尽可能多地学习。

4.As well as : 和……一样好; 即…也…

She dancess as well as her mother does.

她跳舞跳得和她妈妈一样好。

She grows flowers as well as vegetables.

她既种了花也种了菜。

5.as soon as: 一……就……,引导一个时间状语从句。

I will visit you as soon as I arrive in Beijing.

我一到北京就去拜访你。

6.as long as: 长达……之久;只要……

She has been doing her homework as long as three hours.

她已经做了三个小时的家庭作业了。

You will succeed as long as you work hard.

只要你努力工作,你就会成功。

7.the same + 名词 + as: 和…一样,表示原级比较。

I have the same book as you.

我有和你一样的书。

惯用说法:

1.As busy as a bee:很忙;

2.As cold as ice: 很冷;

3.As strong as a horse :力大如牛。

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