as英语用法归纳(精选七篇)

下面是小编归纳的一些关于as英语用法， 希望对大家的英语学习有帮助。

1)as作关系代词。

1.引导限制性定语从句，用在“such...as”,“the same...as”，“as...as”等结构中，常译作“像...一样的人(或物)”，“凡是...的人(或物)”。例eg：

He wished to be such a man as Lei Feng was.他曾希望做一个像雷锋那样的人。

My hometown is no longer the same as it was.我的家乡再也不像过去一样了。

2.引导非限制性定语从句，用来指代它前面的整个句子(即先行句)，意思是“这一点”。这个分句可以位于句首、句中或句末。eg：

As is well known，oceans cover more than 70% of the earth.我们知道，海洋占地球面积的百分之七十以上。#p#副标题#e#

2)as作介词。

1.作“如，像”解。eg：

They got united as one man.他们团结得像一个人一样。

3)含as的固定词组的用法

1.as soon as作“一…就”解，引导时间状语从句。eg：

As soon as I get to Beijing，I'll write to you.我一到北京，就给你写信。

2.as/so long as作“只要”解，eg;

As/So long as you study hard，you'll make progress.只要你努力，你就会取得进步。

3.as if/though常用来引导方式状语从句，作“好像，仿佛”解。如果从句中讲的是非真实情况，则用虚拟语气。eg：

She loves the child as if/though he were her own.她爱这个孩子如同爱自己的孩子。

As if/though也可用来引导表语从句，常用在“It appears/looks/seems...+as if/though”句型结构中。eg;

It appears as if/though it is going to clear up.看起来天要晴了。

It seems as if/though he knew nothing about it.他好像对此事一无所知。

4.as to作“关于，至于”解。eg;

There is no doubt as to his honesty.他的诚实是无可置疑的。

5.as much/many as作“多达...”，“达到...之多”解。eg：

He can earn as much as 5000 dollars a month.他每月能挣5000美元。

6.so/as far as I know作“就我所知”解，在句中作插入语。eg：

As/So far as I know，he will come here next Monday.据我所知，他将于下星期一到这里来。

7.as a result，as a result of表示“由于...的结果”。eg：

She died as a direct result of the accident.她的死是那次事故的直接结果。

8，as well为“也，还”之意。eg：

Come early，and bring your brother as well.早点来，把你的弟弟也带来。

9.so as to，so...as to若跟动词原形，表示目的或结果。eg：

He studied hard so as to pass the exam.他努力学习以便通过考试。(表示目的)

as……as

AS +adj(原级)+AS

AS +adv(原级)+AS

as soon as 一……就

as soon as possible 尽可能快地

as early as possible 尽可能早的

as carefully as you can 尽可能认真地

as careful as you can 尽可能认真的

so...as 一般用于否定句,as...as 一般用于肯定句,(肯定否定都能用)

so...as不可用于肯定句.as...as与so...as均可表示"与……一样",as...as...的用法:两个as中间可以加形容词或者副词,由它要修饰的内容决定.

4.as作“充当，作为”解。eg：

As a writer，he was famous.作为作家，他是很有名的。

5)as作连词，常用来连接主句和状语从句。

1.引导时间状语从句，作“当...的时候”解，有“随着...”之意，与while意义相近，强调两个动作同时发生;或某事一发生，另一事立即发生。eg：

He shouted aloud as her ran along.他一边往前跑，一边高声地呼喊。

I was startled as he opened the door.他一开门，我吓了一跳。

as作连词，相当于when。eg;

As a little boy (When he was a little boy)he began to learn to play piano.他小时候就开始学弹钢琴。

2.引导原因状语从句，作“因为，由于”解，与because的用法相近。eg;

I must stop writing now，as I have rather a lot of work to do.我必须停笔了，因为我还有许多工作要做。

3.引导方式状语从句或比较状语从句，作“正如，(如)像”解。例eg：

As in your country，we grow wheat in the north and rice in the south.正如(像)你们国家一样，我们在北方种小麦，在南方种大米。(方式状语从句)

When at Rome，do as Romans do.入乡随俗。(方式状语从句)

4.引导让步状语从句，作“虽然，尽管”解。这时从句常用倒装语序，即把从句中的表语、状语或动词原形放在as之前。eg;

Strange as it may seem，it is true.尽管这事看上去很奇怪，但却是真的。

Try as he might，Tom could not get out of the difficulties.不管怎样努力，汤姆还是摆脱不了困境。

它们的用法有异同之处:

肯定句用as...as,不用so...as;否定句两者均可使用.例如:

I didn't go as /so far as you.我走得不像你那么远.

They walked as far as the station.他们步行到了车站.

误:They walked so far as the station.

7)as作副词，表示程度，意为“同样地”。在“as...as...”，“not as...as...”结构中的第一个as是副词，作“和/与...(不)一样”解。eg：

Jack is as tall as his father.杰克和他的父亲一样高。

He doesn't speak English as/so fluently as you.他的英语说得不如你流利。