as 的用法、意思总结
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。
一、基本用法
as ... as
用于比较句型,中间插入的是形容词或副词的原级。意思是"达到与什么相同的程度"。如：He is as strong as a horse. 他力大如牛。
二、习惯用法
1. as soon as
意思是"一......就......",引导一个时间状语从句。如：I'll call you as soon as I finish my homework. 我一完成我的作业,就给你打电话。
2. as long as
意思是"长达......之久；只要......"。如：She has searched the information about dinosaurs on the Internet as long as three hours. 她在因特网上搜索有关恐龙的信息已经长达三个小时。
3. as much as
意思是"高达......；与......一样多"。是用来表达极其多的语气。如：Some of the stones weigh as much as fifteen tons.有些石头重达15吨。
★as...as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。
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。
(5)as well as
She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。
★as...as的结构：
as + 形容词或副词原级 + as
1）在否定句或疑问句中可用so… as。
He cannot run so/as fast as you.
2）当as… as 中间有名词时采用以下格式。
as +形容词+ a +单数名词
as + many/much +名词
This is as good an example as the other is.
I can carry as much paper as you can..
3）用表示倍数的词或其他程度副词做修饰语时，放在as的前面。
This room is twice as big as that one.
Your room is the same size as mine.
4) 倍数+ as + adj. + as 倍数+ then + of
This bridge is three times as long as that one.
This bridge is three times the length of that one.
Your room is twice as large as mine.
Your room is twice the size of mine.
as
[轻读)əz, z; əz, z; (重读)æz; æz]
《古英语 all so 至中古英语成为 also,之后变为更弱并失去 l 而成; 因此与 so 亦有关》
副词
[常 as ? as ?,置于形容词,副词前] (同…) 一样地,同样地,相等地
He is ~ tall ~ you (are).
他和你一样高
I love you as much as she (does).
我和她一样爱你
I love you as much as I love her.
我爱你如同我爱她
I love you as much as her.
我爱你如同爱她; (口语)我和她一样爱你
This is twice [three times] as large as that.
这个有那个的两倍 [三倍] 大
Tom is not as honest as John.
汤姆不如约翰那样诚实
He is not as young as he was [as he used to be].
他 (现在) 没有从前那么年轻
Take as much as you want.
你要多少就拿多少吧
He has as many friends.
他有和我 (所有的) 一样多的朋友
I can do it as well.
我也能做得一样好
as
?as any不亚于任何一个地…,像任何一个那样…
He is as hardworking as any.
他用功不亚于任何人 [他和任何人一样地用功]
as ? as ever
依旧,如故…
He works as hard as ever.
他依旧用功 [他勤勉如故]
as ? as one can = as ? as possible
尽可能…,尽…
He ran as fast as he could.
他尽快跑
as soon as possible
尽快
as long as ?
→ long adv
as many
→ many
as much
→ much
连接词
1 a. [as[so]?as? 表示同程度之比较] 同…一样地,像…,如…般
(
→ as adv.)
He is as tall as I [me].
他和我一样高
Are you as good at Chinese as him?.
你像他那样精通中文吗?
It is not as [so] easy as you think.
这件事不如你所想的那么容易
(
→ as adv. {用法})
b. [ (as) ?as? 构成明喻之惯用语] …般地 (非常,极)
(as) busy as a bee (
蜜蜂般地) 非常忙碌
(as) cool as a cucumber (
胡瓜般地) 很冷静
(as) black as a raven (
乌鸦般地) 乌黑
c. [so[as]?as? 置于名词后] …般地…的
A man so [as] clever as he (is) [him] cannot have made such a blunder.
像他那么聪明的人不可能犯这样的大错
d. [so?as to do] 非常…以至于…,…得…,…到…的程度
(
→ so adv. A 6b)
He was so kind as to help me.
他非常友好以至于 (主动) 帮助我
2
a. 如…; 照…,依…
Do as you like.
照你的意思做吧
Take things as they are.
接受现状吧(面对事实吧)
Leave them as they are.
让他 [它] 们保持现状吧
as you know
如你 (们) 所知
England as she is.
现在的英国
Living as I do so remote from town, I rarely have visitors.
像我住得离城镇这么远,所以罕有访客
b. [as?so?相关地使用] 如…一般地,像…一样地
As rust eats (into) iron, so care eats (into) the heart.
忧虑会像锈腐蚀铁一般地损耗心神; 忧虑损耗心神,犹如锈腐蚀铁
3 a. 当…之时; 正值…之时,边…边…
He came up (to me) as I was speaking.
当我在说话时他走过来
Just as he began to sleep, there was a loud explosion.
正当他想睡时,响起了很大的爆炸声
He trembled as he spoke.
他边说边发抖
b. [as a child [children] 等省略主词及述语之句型] 儿时,小时候
As a boy, he was a good swimmer.
小时候他很会游泳
4 随著… (越发) ,越… (越…)
As we go up, the air grows colder.
我们越往上爬,空气变得越冷
Two is to three as four is to six. = As two is to three, four is to six.
二比三等于四比六
5
a. 因为…,既然…
As it was getting dark, we soon turned back.
因为天色逐渐变暗,我们不久就回去了
As you are sorry, I'll forgive you.
既然你有悔意,我就原谅你吧
b. [形容词 [副词] +as?] 因为…
(cf. 6 a)
Young as he was, it is not strange that he should have acted so foolishly.
因为他年轻,难怪他举动会那样愚蠢
6(文语)
a. [形容词,副词,无冠词之名词 + as?] 尽管,虽然…,纵然…
Woman as she was, she was brave.
她虽然是女人,却很勇敢
Young as he was, he passed with flying colors.
他虽然年轻,却成功地通过了 (考试)
b. [原形动词+as+主词+may,might,will,would] 不管怎样…也,无论如何…也
Try as you may, you will find it impossible to solve the problem.
不管你怎么努力,你会发觉要解决这个问题是不可能的
7 [用以限定前面名词之概念]
a. [引导形容词子句]
The origin of universities as we know them is commonly traced back to the twelfth century.
据我们所知,大学之最早兴办一般可追溯到十二世纪
b.
(◆参考成语)
Socrates' conversations as reported by Plato were full of a shrewd humor.
照柏拉图所传述的,苏格拉底的谈话充满了慧黠的幽默
as above
如上 (所示) ,照上
as before
如前
as below
如下
(as) compared with[to]
(→ compare. as for)
as for
就…而
as
名词
(pl. asses)
阿斯
(1 古罗马的铜币; 2 古罗马的重量单位,等于一金衡量磅)
as
/ əz; əz; strong form 强读å¼ǒ z; æz/ prep
so as to appear to be (sb) 好像（某人）: dressed as a policeman 打扮得像个警察 * They entered the building disguised as cleaners. 他们化装成清洁工人的模样进入大楼.
having the function or character of (sb) 有（某人）的身分或特性; 作为; 当作: a job as a packer 包装者的工作 * work as a courier 当导游 * I'm speaking as your employer. 我以雇主的身分和你说话. * Treat me as a friend. 把我当作朋友. * accept sb as an equal 把某人视为同等的人 * I respect him as a writer and as a man. 我尊重他这位作家, 也尊重他这个人. =>Usage 见所附用法.
(a) since sb is (sth) 因某人是（某身分）: As her private secretary he has access to all her correspondence. 他是她的私人秘书, 能接触到她所有的信件. (b) when or while sb is (sth) 当某人是（某身分）时: As a child she was sent to six different schools. 她儿时前後上过六所学校.
> as adv
1 as...as (used before advs and adjs in order to make a comparison 用於副词和形容词之前, 以构成比较句型) (a) (with the second as a prep 第二个as用作介词) to the same extent...; equally...as 达到与...相同的程度; 与...等同: as tall as his father 和他父亲一样高 * This dress is twice as expensive as that. 这件连衣裙比那件贵一倍. * He doesn't play half as well as his sister. 他演奏的水平不及他姐姐的一半. * I haven't known him as long as you. 我没有你认识他的时间长. * As likely as not (ie Very probably), it will rain. 很有可能要下雨. (b) (with the second as a conj 第二个as用作连词) to the same extent...as; equally...as 同...一样达到某种程度; 与...等同: He looks as ill as he sounded on the phone. 他的样子和他在电话中说话的声音反映的病情是一样的. * His eyes aren't quite as blue as they look in the film. 他的眼睛不像在电影里见到的那麽蓝. * Run as fast as you can. 你能跑多快就跑多快. * He recited as much of the poem as he could remember. 他把诗中记得住的都背诵出来了. * She's as good an actress as she is a singer. 她当演员和当歌手都一样出色.
2 not differently from; like 和...无不同; 像; 如: As before he remained unmoved. 他和以往一样无动於衷. * The `h' is silent as in `hour'. 在hour这个字中, h不发音.
as conj 1 during the time when; while 在...期间; 当...的时候: I watched her as she combed her hair. 她梳头的时候我一直看着她. * As he grew older he lost interest in everything except gardening. 他年纪越来越大, 除了喜欢园艺以外, 对一切都失去了兴趣. 2 (usu placed at the beginning of the sentence 通常置於句首) since; because 由於; 因为: As you weren't there I left a message. 因为你不在那里, 我留了个信儿. * As she's been ill perhaps she'll need some help. 她由於生病可能需要些帮助.
(used after an adj or adv to introduce a clause of concession 用於形容词或副词之後, 引导让步从句) although 尽管; 即使; 虽然: Young as I am, I already know what career I want to follow. 我虽然还小, 可是对要从事的职业已胸有成竹了. * Talented as he is, he is not yet ready to turn professional. 别看他有天分, 他还没把心用到专业上去. * Much as I like you, I couldn't live with you. 我尽管很喜欢你, 却不能和你在一起生活. * Try as he would/might, he couldn't open the door. 他试过多次了, 却仍打不开那门.
in the way in which 以...方式: Do as I say and sit down. 照我说的, 坐下. * Leave the table as it is, ie Do not disturb the things on it. 那桌子就那样吧（不要动上面的东西）. * Why didn't you catch the last bus as I told you to? 你怎麽不听我的话赶乘末班公共汽车呢?
a fact which 为...之事实: Cyprus, as you know, is an island in the Mediterranean. 如你所知, 塞浦路斯是地中海的岛国. * The Beatles, as many of you are old enough to remember, came from Liverpool. 你们这样年纪的人大多还记得披头士乐队吧, 他们都是利物浦人.
(usu followed by be or do + subject 通常後接be或do +主语) and so too 也一样: She's unusually tall, as are both her parents. 她特别高, 她父母也都那麽高. * He's a doctor, as was his wife before she had children. 他是医生, 他妻子生儿育女之前也当过医生. =>Usage 见所附用法.
(idm 习语) as against sth in contrast with sth 与...对照; 与...相比: She gets Saturdays off in her new job as against working alternate weekends in her last one. 她新找的这份工作星期六放假, 而原来的那份工作周末是隔周放假. * We had twelve hours of sunshine yesterday, as against a forecast of continuous rain. 昨日有十二小时的晴天, 预报却说仍有雨. ,as and `when (a) (referring to an uncertain future event or action 指将来的某一未定的事或行动) when 到时候: We'll decide on our team as and when we qualify for the competition. 我们来决定自己的队到什麽时候才有资格参加比赛. Cf 参看 if and when (if). (b) (infml 口) when possible; eventually 可能时; 终於; 最终: I'll tell you more as and when, ie as soon as I can. 有可能时我再多跟你说. as for sb/sth with regard to sb/sth 至於某人[某事物]: As for the hotel, it was very uncomfortable and miles from the sea. 至於旅馆呢, 非常不舒服, 而且离海边有好几里地. * As for you, you ought to be ashamed of yourself. 至於你, 你应该感到惭愧. as from; esp US as of (indicating the time or date from which sth starts 指某事物开始的时间或日期): As from next Monday you can use my office. 从下星期一起, 你可以使用我的办公室. * We shall have a new address as of 12 May. 我们自5月12日起将用新地址. as if; as though with the appearance of; apparently 好像; 似乎; 彷佛: He behaved as if nothing had happened. 他装作若无其事的样子. * As if unsure of where she was, she hesitated and looked round. 她彷佛茫然不知身在何处, 犹犹豫豫向四周打量. * He rubbed his eyes and yawned as though waking up after a long sleep. 他又揉眼睛又打哈欠, 好像睡了一大觉刚醒似的. ,as it `is taking present circumstances into account; as things are 照现状看; 看样子: We were hoping to have a holiday next week as it is, we may not be able to get away. 我们原来盼望着下星期放假--看样子走不了了. * I thought I might be transferred but as it is I shall have to look for a new job. 我以为我可能调动工作, 照目前情况看我得另找工作了. ,as it `were (used to comment on the speaker's own choice of words, which may give only an approximate meaning 用以评断自己用词是否恰当, 指词义接近而已): She seemed very relaxed in her natural setting as it were. 她似乎十分悠然自得--可以说是有自己随遇而安的天地. * He'd been watching the water rising for two hours preparing to meet his destiny, as it were before help arrived. 他在获救前的两小时中, 一直眼看着水在上涨--可谓准备听天由命了. as to sth; as regards sth with regard to sth; regarding sth 至於某事物; 提到某事物: As to correcting our homework, the teacher always makes us do it ourselves. 谈到批改我们的作业, 老师总是让我们自己改. * There are no special rules as regards what clothes you should wear. 至於应该穿什麽衣服, 并没有硬性规定. as yet => yet. ,as you `were (used as an order to soldiers, etc to return to their previous positions, activities, etc 用作口令, 意为恢复到原来的位置﹑ 姿势﹑ 活动等).
NOTE ON USAGE 用法:
1 When referring to the similarity between people, things and actions, both as and like are used 在谈到人﹑ 事物或动作彼此有相同点或共同点时, 使用as和like均可. Like is a preposition and is used before nouns and pronouns *like是介词, 用於名词和代词之前: Like me, she enjoys all kinds of music. 她和我一样, 各种音乐都喜爱. As is a conjunction and is used before a clause *as是连词, 用於分句之前: She enjoys all kinds of music, as I do. 她各种音乐都喜爱, 和我一样. In informal speech like is frequently used as a conjunction, replacing both as and as if 在口语中, like往往用作连词, 当作as和as if使用: Nobody understands him like/as I do. 没有人能像我这样理解他. * It looks like/as if he won't arrive in time. 看来他好像不能按时到达了.
2 Compare the use of as and like indicating occupations or functions 试比较as和like用於职业或作用方面的用法: She worked as a teacher (ie was a teacher) for many years. 她当了许多年的教师. Our doctor always talks to me like a teacher talking to a child, ie He is not a teacher but he has the manner of one. 给我们看病的医生对我说话总是像教师对小学生说话一样.
可以查词典 牛津
as: 像 Please do it as me.
和...一样 i am as tall as her.
当...时 I was reading as my mother came in.
作为 As a student, i should study hard.
因为 i didn't go out as it was raining all day.
as adv. 同样地, 一样。prep. 1． (表示时间)当还是…的时候
2． (表示方式)以…的身份, 以…资格, 作为; 以…形式, 以作为; 以…角色, 扮演…角色; 如同, 像
3． (表示结果)成为, 看作, 看成
4． (表示目的)为了, 以…为目的
5． (表示举例)例如, 诸如…之类的
conj. 在…期间, 当…时候；尽管, 即使, 虽然；像…一样；由于, 因为
还有一些短语as a matter of fact =as a result ，结果
as a whole 整体来看
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