新浪博客

as...as结构详解

2014-04-29 20:32阅读:
as...as用法  
一.概述
“ as … as …结构”在英语中用法较多,学生在平时的学习中会频繁地接触到此种结构。有部分学生认为“ as … as… 结构”中只能出现形容词或副词并且认为此结构只能用于原级比较,这种认识是单一的。实际上 “ as … as… 结构”经过不同变化可以构成不同的短语和句式,这些短语和句式被灵活地运用于课文和练习中。如果学生对此结构的用法了解不多,就会在平时的学习中遇到障碍。

“as + 形容词或副词原级 + as…” 意为“和……一样”,表示同级的比较,但要注意第一个 as 为副词,第二个 as 为连词。

二.基本结构用法:  
(一)“as + 形容词或副词原级 + as…” 结构用于表示不同人或物同一性质的比较,意为“……和……一样…… ' 。例如:   
The tree is as tall as the building(is) 这棵树和那栋楼一样高。   
This film is as interesting as that one.这部电影和那部电影一样有趣。
This dictionary is not as useful as you think.这本字典不如你想象的那样有用。
His bedroom is as clean as his sister’s.
He is as tall as I/me.他和我一样高。
He got up as early as I did.他和我起得一样早。
He cannot run so/as fast as you.他没你跑得快。
We should plant trees as many as possible我们应该尽可能多种树。
This film is as interesting as that one.这部电影和那部电影一样有趣。
I hope you've enjoyed as much as I have.
希望你玩得和我一样愉快。

I love you as much as I love her. 我爱你如同我爱她。
She has as many as seven sisters. 她的姊妹有七人之多。
There were as many as 200 people at the lecture. 听讲的有200人之多。


另外还有变体结构:
as + 形容词 + a + 单数名词 + as
I don't want a car as expensive as this   
I don't want as expensive a car as this.
我不要这么贵的汽车。   
This is an example as good as the other is.
=This is as good an example as the other is.   
这个例子和另外一个例子一样好。   
Tony is a boy as clever as his brother.
=Tony is as clever a boy as his brother .托尼是一个和他兄弟一样聪明的男孩。   
She is as good a cook as her mother. 她和她妈妈一样是位好厨师。
John is as clever a student as mike.
John is as clever a student as mike. 约翰和迈克是一样聪明的学生。
This is as good an example as the other is.这个例子和另外一个一样好。
This is as good an example as the other is.这是一个像其它的一样好的例子。

注意此结构也常用于形象比喻中:
as cool as cucumber 沉着的,
as stubborn as a mule 非常顽强的,倔强的,
as clear as crystal 非常透明的,
as poor as a church mouse 非常贫困的,
as busy as a bee 像蜜蜂一样忙碌,
as easy as ABC 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。
这些短语生动活泼,浅显易懂,记住这些短语可以提高学生的英语写作和口语能力。   
(二)“ as … as …结构”用于表示同一个人或物不同性质的比较,意为“既……又……” 。例如:   
This swimming pool is as wide as it is long.   这个游泳池宽度和长度相等。   
(三)“ as … as …结构”用于表示两个人或物不同性质的比较,表示程度相同或相当,意为“……而……”。在否定句中结构是“ so/as…as… ”。例如:   
He was as handsome as his wife was beautiful 他长得非常英俊,他的妻子也长得非常漂亮。   
He was as experienced as his brother was green .他经验丰富,而他兄弟却涉世未深。   
He cannot run so/as fast as you. 他没你跑得快。   
Danny is not so/as wise as he is witty 丹尼为人风趣,但欠明智。   

(四)
as + many + 复数名词 + as ”。
as + much + 不可数名词 + as ”
意为“……和……一样多 '
例如:   
I can carry as much paper as you can.   我能搬得动和你一样多的纸。   
You’ve made as many mistakes as I have.
Corn doesn’t need as/so much water as rice.玉米不需要稻谷那么多水。
Tom has as many books as Jack. 汤姆有跟杰克一样多的书。
Li Ming has as much money as Wu Ping. 李明的钱和吴平的钱一般多。

另外,需要注意以上的变体机构:

1)变体结构的否定形式为“ so +adj. + a/an + n. ( 单数 ) + as ' 。例如:   
I am not so strong a man as I was.  我已经没有从前那么强壮了。   
I’m not so good a player as any of you.我不是一个像你们任何一个一样好的运动员。
Mary is as friendly a girl as Julie. Mary和Julie一样友好
I have never met with as clever a boy as he is before, who has really impressed me a great deal.
我从来没见过像他一样聪明的男孩,他的确给我留下了非常深刻的印象.

This is as good a knife as that one.
I'm as good a cook as my mum.
This was not as bad a result as they expected.


其间接形容词时,有时该形容词还可修饰另一名词,但这个名词应带有不定冠词(注意词序):
She is as good a cook as her mother. 她和她妈妈一样是位好厨师。
也可说:She is a cook as good as her mother.
但不说:She is as a good cook as her mother. 或They are as good cooks as us.


2)当much 表示程度的时候
as much + 不可数名词 / a (an) + 单数可数名词+ as ...“和...(程度上)是一样的 ”
eg: 1)It is generally believed that teaching is as much an art as it is a science.人们普遍相信教学如同一门科学一样,它同样是一门艺术。
2)Getting rid of a bad habit is as much a struggle as forming a good one. 摆脱一个坏习惯如同养成一个好习惯一样需要艰苦努力。
课本例句:
There’s as much competition among countries to host the Olympics as to win Olympic medals.国与国之间争取奥运会举办权的竞争,就跟争夺奥运奖牌一样激烈。B2U2
as much+不可数名词+as…意思是“和…是一样的”和上面基本形式as many/much +可数/不可数+as 不同,那是表示多少,这里是表示程度上一样。
It is as much your responsibility as mine.
She spends as much money on clothing as I do.
as much+a/an+单数名词+as…意思是“和…是一样的”
It is generally believed that teaching is as much an art as a science.
否定式:not so much…as… 与其说是…不如说是…
He is not so much an actor as a TV host.


二、 “as … as… 结构 中常见词组和句式的用法   
“as … as… 结构 中常见词组和句式有很多,最常见的词组有“ as soon as ”意思是 ' …… ……', 引导一个时间状语从句,还有“ as much as ”和“ as many as ”意思是“像 …… 一样多 ……” ,用来表达极其多的语气,学生在学习中时常会遇到这些词组,对这些词组的用法并不陌生。笔者对此无需赘述。下列笔者将要介绍 “as … as… 结构 中其他一些常用词组和句式:   
(一)词组“ as long as ”意思是 ' 长达 …… 之久;只要 ……' 。引导时间或条件状语从句。如:   
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。   
You may borrow this book as long as you promise to give it back.   
只要你答应归还,你就可以把这书借走。   
As long as you work hard, you are sure to succeed in everything.   
只要你努力,你就一定会事事成功。   
(二)词组“ as far as ” 意思是“那么远,就… … 而知,就… … 言,” 如:   
He walked as far as the railway station yesterday evening.   
昨天傍晚,他一直散步到火车站。   
As far as I’m concerned, she is the most qualified for the job.   
在我看来,她是最适合这份工作的。   
(三)句式 “ as+ many/much+ 名词 +as” 意思是“ …… …… 一样”。此结构是词组“ as much as ”和“ as many as ”的变体形式。如:   
To eat too much is as much a bad thing as to eat nothing

我的更多文章

下载客户端阅读体验更佳

APP专享