as……as的意思及具体用法!-…-英语学习资料
编辑： admin 2017-26-03
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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.
(5)as well as
She cooks as well as her mother does.她烧菜烧得跟她母亲一样好.
一些带有as...as结构的常见短语归纳：
as busy as a bee像蜜蜂一样忙碌
as easy as ABC像ABC一样容易
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
类似问题
类似问题1： as的含义和用法[英语科目]
as 的含义和用法
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.
类似问题2： Justas什么意思啊用法是?句子是JustasIwasopeningthedoor,thetelephonerang谢谢咯[英语科目]
正当.时候
类似问题3： 数据库AS意义及其用法
首先你是什么数据库,一般来讲,在sql脚本里面,as关键词是作为别名的,如：
select row_id as KeyName from table_a
就是说数据库里面的字段名字是row_id,但是你执行了上述命令后,给这个字段赋予了“KeyName”别名,这个也可以作为变量引用
类似问题4： 【c#中as的用法、意思?as是干什么用的?具体语法是什么?////////////要绑定的控件///用于绑定的数据源publicstaticvoidBind(WebControlwc,objectdataSource){if(wcisGridView){GridViewgv=wcasGridView;gv.DataSource】百度作业帮
MSDN给出的解释是：
as 运算符用于在兼容的引用类型之间执行某些类型的转换.
说明白了,就是把基类类型转换成派生类类型
比如Winform的ListBox的每一项都是object类型,将一个string丢进去以后,下次再取出的时候是一个object.这时候,想还原原来的字符串,就得对这个object做as string操作.
类似问题5： asif的含义和用法[英语科目]
as if 意为似乎,好像,多用于虚拟语气
常见的句型有it looks as if ,it appears as if ,例如
the chopsticks in the bowl looks as if it were broken.中的were就体现出来了 as if 的用法