1.引导时间状语从句

1),指 “一边…一边…”

The girl sings as she goes to school.

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

2) “随着…的推移/交替”

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

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

3)表示两个短暂行为几乎同时发生.

I thought of it just as you opened your mouth.

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

(自己联想一下when, while引导时间状语从句时的特点吧)

2. 引导原因状语从句

As =Since "既然"、"由于":

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

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

(自己联想一下because, for引导原因状语从句时的特点吧)

3. 引导方式状语从句

As =in the way that "像"、"按照……的方式"。如:

Do as I told you.

Remember, you must do everything as I do.

4. as…as…

1) 否定形式 not so …as…

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As的用法小结:

as连词、关系代词、介词、副词:

（一）as连词：

1) 引导时间状语从句， 译成一边…一边…

如:The girl sings as she goes to school.

2)随着…的发展…

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

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.

4)后面接名词表示某一个年龄段时.如: As a young man, he was active in sports.

5) As =Since,引导原因状语从句,

作"既然"、"由于"解, ,常表示显而易见的原因或理由。

如:

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

6) 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.

7) 用于引导比较状语从句

As… as或not / so/ as …

as中,前一个as是副词,后一个as是连词. 如:They helped the old as much as possible.

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

8)表示虽然,尽管,引导让步状语从句,句首常用倒装语序:

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

Tired as they were, they walked on.

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as的用法

1. as...as的用法

as...as意为"和……一样"，表示同级的比较。使用时要注意第一个as为副词，第二个as为连词。其基本结构为：as+ adj./ adv. +as。例如：

(1)This film is as interesting as that one.这部电影和那部电影一样有趣。

(2)Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。

其否定式为not as/so +adj./ adv. +as。例如：

This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。

若有修饰成分，如twice, three times, half, a quarter等，则须置于第一个as之前。例如：

Your bag is twice as expensive as mine.你的袋子比我的贵一倍。

几个关于as...as的常见句型：

(1)as...as possible

Please answer my question as soon as possible.请尽快回答我的问题。

(2)as...as usual/before

She looks as pretty as before.她看起来和以前一样漂亮。

(3)as long as... (引导条件状语从句)

It took us as long as three years to carry out the plan.我们花了长达三年的时间才完成这项计划。

(4)as far as

He walked as far as the railway station yesterday evening.昨天傍晚，他一直散步到火车站。

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高考常见词as用法总结

近几年高考中有关as一词的题目出现过很多次，其中as或是最佳选项，或是干扰项，或是题干中的关键信息点，涉及as作为连词、介词、关系代词、副词以及习语等各种用法。现结合高考试题将as的用法归纳如下：

　　一、 用作连词的as

　　1. 引导时间状语从句，表示“当……的时候”，其用法与when和while类似。例如：As a child (When he was a child), she was sent to six different schools. 此用法中as多表示从句与主句动作同时进行，一般不与状态动词连用，意为“一边……一边……”。例如：She sang songs as she did her homework.

　　as 还可以表示一动作紧接着另一动作发生，说明另一动作的结果，有“随着……”的含义。例如：As time went by, we found he was an honest man./As he grew older, he lost interest in everything except gardening.

　　例1　It wasn’t until nearly a month later________ I received the manager’s reply.

　　A. since   B. when

　　C. as       D. that

　　解析：本题中的as与when一起作为干扰项，容易使同学往时间状语从句上思考，事实上本题是强调句，正确选项是D。

　　2. 引导原因状语从句，表示“由于，因为”，相当于because, 但通常置于句首。例如：As he is a qualified doctor, I trust his advice on medical matters.

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关于"as" 的用法小结

我在浏览其他网站时发现了有关AS用法的总结，自己觉得非常比较适合我自己，现将他贴出来共享。非常感谢总结用法的老师们！！！

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为,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.

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一、as作连词的用法

1. as...as的用法

as...as意为"和……一样"，表示同级的比较。使用时要注意第一个as为副词，第二个as为连词。

其基本结构为：as+ adj./ adv. +as。例如：

1) This film is as interesting as that one.这部电影和那部电影一样有趣。

2) Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。

其否定式为not as/so +adj./ adv. +as。例如：

This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。

若有修饰成分，如twice, three times, half, a quarter等，则须置于第一个as之前。例如：

Your bag is twice as expensive as mine.你的袋子比我的贵一倍。

几个关于as...as的常见句型：

1) as...as possible

Please answer my question as soon as possible.请尽快回答我的问题。

2) as...as usual/before

She looks as pretty as before.她看起来和以前一样漂亮。

3) as long as... (引导条件状语从句)

It took us as long as three years to carry out the plan.我们花了长达三年的时间才完成这项计划。

4) as far as

He walked as far as the railway station yesterday evening.昨天傍晚，他一直散步到火车站。

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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”。<BR>

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.

…… …… 余下全文