高中英语---as用法(本人整理)

2024年3月24日发(作者：自讨苦吃的意思)

As用法小结

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 uful 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：

(as possible

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

(as usual/before

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

(3)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。

(5)as well as

She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。

2. as用作连词引导时间状语从句

as与when，while都是引导时间状语从句的从属连词，含义都是"当……

的时候"。但它们有区别：用when时，从句的动作可以与主句的动作同时发

生，也可以先于主句的动作发生；用while时，从句的动作为一过程，主句动

作与从句动作同时进行或在从句动作过程中发生；用as时，主句和从句的动

作同时发生，具有延续的含义。例如：

(1)It was snowing when he arrived at the construction site.他到达工地时，天

正在下雪。

(2)He was watching TV while his mother was cooking.他母亲做饭时他在看

电视。

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(3) You will grow wir as you grow older.你会随着年龄的增长而越来越聪

明。

3. as用作连词引导原因状语从句

as，becau，since都可以表示因果关系，连接原因状语从句，含义是"因

为，由于"，但它们有区别：becau表示的语气最强；as一般放在句首，语气

较弱，较口语化；since常常用在书面语中，表示多为对方已知的、或稍加分

析便可得知的原因，有时可译作"既然"。例如：

(1) He will succeed becau he is in earnest.他一定会成功，因为他很认真。

(2) Since you are so sure of it he’ll believe you.既然你对此如此有把握，他会

相信你的。

(3) As rain has fallen, the air is cooler.因为下过雨，空气比较清爽。

4. as作连词引导让步状语从句

as与although (或though)，however (或no matter how)等都可以引导让步

状语从句，含义是"虽然，尽管"，但它们有区别：although语气稍正式些，可

放在句首，也可放在句中，主句中不能再用but，但可以用yet；as所表示的

语气较强，引导的让步状语从句用倒装语序；however引导让步状语从句时，

它的后面可跟形容词或副词，也要用倒装语序。例如：

(1) Although he is quite old, he still jogs every day.他虽然年纪相当大，仍然

每天慢跑。

(2) Strange as it may em, nobody was injured in the accident.这次意外虽然

显得令人不可思议，却没有人受伤。

(3) However hard he may try, he will not attain his goal.无论他怎样努力也达

不到目标。

二、as作关系代词的用法

关系代词as引导定语从句时，既可以单独使用，也可以与其他词连用，

其用法要比that和which更为复杂。

1. as引导定语从句与其他词连用

①用于as结构中

This is the same book as I read last week.这本书和我上周读的那本是一样

的。

②用于as结构中

I don’t like such books as he recommends.我不喜欢他推荐的那些书。

③用于"so +adj. + a/an + n. (单数) + as "结构中

I am not so strong a man as I was.我已经没有从前那么强壮了。

2. as单独引导定语从句

as单独引导定语从句时，先行词可以是一个词，也可以是一个句子或短

语。例如：

(1) She is late, as is often the ca.她迟到了，这是经常的事。(先行词是整

个主句)

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(2) To shut your eyes to facts, as many of you do, is foolish.对事实视而不见

--你们好多人都是如此的愚蠢。(先行词是不定式短语)

三、as作介词的用法

as作介词，意思是"作为"，"以……身份"。例如：

He came to China as a tourist five years ago.他五年前以游客的身份来过中

国。

四、as作副词的用法

to the same degree or amount; equally "相同地"，"同样地"。例如：

They don’t have as many airplanes.他们没有同样多的飞机。

五、含有as的短语：

as long as 长达；只要

as far as 远至；就……而言

as early as 早在……

as wide as 宽达……

as many as 多达……

as much as 多达……

as soon as 一……就……

as good as 几乎一样，实际上等于

as well as 既……又，还

as big as 和……一样大，有……那么大

as fast as 像……一样快

as well也；同样地；还不如

as soon as possible尽快

as was the ca with---正如……（的情况）那样

as is often the ca这是常有的事

as an example例如；作为一个例子

as a man一致地；就他个人品质而言

as one像一个人一样

as one man一致地

as a whole总起来；作为整体；整个看来

as and often当……

as for至于；关于

as from/of从……

as if/though好像；仿佛

as to关于；在……方面

as many同样多的

as much同样多的

as busy as a bee像蜜蜂一样忙碌

as easy as ABC像ABC一样容易

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as deep as a well像井一样深

as light as a feather像羽毛一样轻

as soft as butter像黄油一样软

as rich as a Jew像犹太人一样富裕

as a matter of fact事实上

as a matter of form作为一种礼节

as a result (of) 结果；作为……的结果

as and when 无论是以什么方式和在什么时候

as anything 非常；无比地

as big as you plea 如无其事地；无拘无束地

as best one can全力以赴

as black as one is painted 像人们所说的那么坏

as broad as it is long 没有区别；半斤八两

as chance will have it 碰巧；偶然；偏偏

as coolly as you like 非常冷淡地

as far as one can e 根据某人的判断

as fast as one’s legs can carry one 尽可能快；越快越好

as far as sb. (sth.) goes 就现状来说；实际上

as far as the eye can reach 就眼力所能及；极目

as far as I’m concerned就我而言

as follows如下

as good (ill) luck would have it侥幸（不幸）的是；碰巧（不巧）

as happy (honest) as the day is long 非常愉快（诚实）

as I live and breathe使我非常吃惊；的的确确

as if by magic 像使了魔法似的

as is 原样

as it is (was) 实际上；事实上

as much as to say 等于说；好像是说

as much as one’s life is worth 非常危险的

as of old 一如既往；照旧

as often as每次；每当

as often as not通常；屡次

as one might say可以说是；可以这么说

as soon as look at sb. 立即；马上

as soon as maybe 尽快

as soon as not 巴不得

as sure as的的确确

as the saying is (goes) 俗话说；常言说得好

as they say 俗话说

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as usual像通常那样

much as即使；虽然

engage sb. As聘用某人干……

might as well不妨；何妨；还是……的好

such as诸如……之类的

regard---as---把……看作……（以下为同意表达）

consider---as---

eye---as---

treat---as---

think of---as---

take---as---

have---as---

keep---as---

e---as---

count---as---

view---as---

respect---as---

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