as的用法，as九大用法

一、as 的用法总结

可作：副词、介词、连词、代词使用。as意思有如同、例如等。as作副词，表示程度，意为同样地。as作介词，作如，像。或者为充当，作为。as作连词，常用来连接主句和状语从句。as作关系代词，引导限制性定语从句或引导非限制性定语从句。扩展资料

可作：副词、介词、连词、代词使用。as意思有如同、例如等。

1、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。

2、as作介词。作“如，像”解。或者为“充当，作为”。

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：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。引导原因状语从句：作“因为，由于”解，与because的用法相近。引导方式状语从句或比较状语从句：作“正如，（如）像”解。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。

4、as作关系代词。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）”。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。

二、英语语法:as的用法

as可用作连词，引导比较、时间、原因及方式等四种状语从句，应注意的是，引导的比较状语从句往往有省略；引导的时间状语从句一般用一般现在时而不用一般将来时；引导原因状语从句时与“Because”和“since”引导的从句比较起起来语气最弱。

as作介词，意思时“作为”，“以……身份”。例如：He came to China as a tourist five years ago.

而表示像…一样时，like通常作介词用，而介词后面通常接名词，代名词和动名词。

as in Australia“和在澳大利亚一样”。

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

1。as是连词，表示“随着”的意义。lives是life的复数，意义是“生活”。

2。as是连词，表示“因为，由于”的意义。wanting是现在分词，表示主动意义，wanting to buy cars=who want to buy cars。

As的用法小结

as可以作连词、介词及关系代词和副词。现将其用法小结如下:

（一）、 as作连词的用法:

1.作“在-------期间，当----的时候”引导时间状语从句.注意与when、 while的用法区别。

①下列情形时,只用as,而不用when或while。

1)用于表示同一个人的两种动作交替进行,指一边----一边.如:

The girl sings as she goes to school.

He looked behind occasionally as he went forward in the forest.

2)表示两个同步发生的动作或行?意思是随着-----的发展.如:

As time went on/ by, she became more and more beautiful.

As children get older, they become more and more interested in everything.

3)表示两个短暂行为或事情几乎同时发生.如:I watched her as she read the book.

I thought of it just as you opened your mouth.

Just as the flying worm hit her face, she gave a loud cry.

4)接在名词后面表示某一个年龄段时.如:

As a young man, he was active in sports.

②when作"当……的时候"解,可以指较短的(一点)时间,也可指一段时间。如:When I was at college, I could speak several foreign languages. When the clock struck twelve, I had slept for 2hours.

③ while常表示一段较长的时间或一个过程,强调主句谓语动词与从句谓语动词同时发生。如:Work while you work. Play while you play.

2. As=Since作"既然"、"由于"解,引导原因状语从句,常用来表示已为人们所知或显而易见的原因或理由。如: As he’s been ill for ages, I will help him.

As/ Since you're not feeling well, you may stay at home.

As he wasn't ready, we went without him.

3. As=in the way that作"像"、"按照……的方式"解,引导方式状语从句。如:

Do as I told you.

Remember, you must do everything as I do.

4.用于as--- as或not/ so/ as---- as中,前一个as是副词,后一个as是连词,引导比较状语从句。如:They helped the old as much as possible.

I don't speak English so/ as well as she does.

5.表示虽然,尽管等,引导让步状语从句,常用倒装语序,模式为:

adj./adv./ n. as 主语 谓语 主句。如: Young as he is, he knows much.

Tired as they were, they walked on.

6.表示也------一样。 She is a doctor, as was her husband.

（二）、 as作关系代词,引导定语从句,表示正如,这一点.如:

He is very careful, as we all know.

As is well-known, Taiwan belongs to China.

另外,当先行词被the same, such等词修饰时,常用as来引导定语从句。如:

Such a clever girl as she can learn anything quickly.

I was reading the same book as he bought yesterday.

（三）、as作介词的用法.

1.表示好像。如:He dressed as a policeman.

2.表示作为当作。如：I found a job as a guide.

3.当某人是某身份时。如：As a child, she was sent to abroad.

4. as引导的介词短语大多用作状语,as译为"作为";少数情况可引起宾语补足语。如:

As a Party member, I'll take the lead in everything.(状语)

She works as a model.(状语)

She has me as one of her best friends.(引起宾语补足语)

（四）、作副词的用法 1表示与------等同。如：This dress is twice as expensive as that one. 2像，如等。如：As before, he remained unmoved.

总之，通过以上的分析，我们对as的词性和用法有了比较全面的理解和把握，才能在实际的运用中做到心中有数，应付裕如。

三、as九大用法

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。

扩展资料：

缩写为AS的单词

1.=Anglo-Saxon盎格鲁-撒克逊人;盎格鲁-撒克逊语;盎格鲁-撒克逊人的;盎格鲁-撒克逊

语的

2.=antisubmarine反潜艇的

3.=Asia亚洲;亚细亚

4.=Asian亚洲的;亚洲人;亚洲人的

参考资料来源：百度百科：AS

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