as用法

as的词性有副词、介词、连词、代词。

as用法

一、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。

二、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。

2、作“充当,作为”解。eg:

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

三、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。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。

四、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。

五、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。

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。

as的用法是什么?

1、as用作连词时,可以用来表示时间,译为“正当…的时候;随着…;边…边…”,引导时间状语从句。主句可以是主动句,也可以是被动句。

2、当两个主语的动作是同时发生的时候,主句和从句的谓语动词都可以用进行时态或一般式,无论动作长短;当两件事发生的时间间隔很短,甚至没有时间间隔时,主句和从句均用一般过去时;

3、当主句的动作发生在从句的动作发生的过程中的时候,主句和从句可以都用一般过去时,也可以在从句中用进行时态。当表示两个动作的完成时间恰好一致时,as连接的主、从句也都可用过去完成时。

扩展资料:

1、as,for这两个词均可作“作为;当作;用作”解,一般情况下可以互换。但as表示资格,而for表示用途。例如:

She was respected as a teacher.

作为一名教师,她受到尊敬。

She won't do for a teacher.

她做教师不行。

2、另外,在regard,think of,treat等动词之后一般用as,不用for。

as的用法总结7种

as只有作副词、介词、连词、代词等四大用法,具体用法如下:

一)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。

二)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。

2.作“充当,作为”解。eg:

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

三)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。

四)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。

as的用法总结

as的全部用法总结如下:

1、as作副词,表示程度,意为“同样地”。

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

He doesnt speak English as/so fluently as you。他的英语说得不如你流利。

2、as作介词。

作“如,像”解。

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

作“充当,作为”解。

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

3、as作连词,常用来连接主句和状语从句。引导时间状语从句,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。

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。

4、as作连词,相当于when。

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。