as的用法小结

as引导的比较状语从句

as引导比较状语从句，其基本结构是as…as。前一个as是副词，后一个as是比较状语从句的连词。如It’s not as good as it used to be.这个不如以前的好。

高中英语语法知识点：as...as...用法小结

as...as...用法小结

(1)...as+形容词(副词)原级+as...;not as/so+形容词(副词)原级+as...

Their factory is as large as ours.他们的工厂和我们的一样大。

I study as hard as you.我和你一样用功学习。

He doesn’t get up as/ so early as his parents.他不像他父母那样早起床。

(2)……倍数+ as + 形容词(副词)原级+as...

Line AB is 3 times as long as Line CD.=Line AB is twice longer than/3 times the length of Line CD.线段AB是线段CD长的3倍。

(3)as + 形容词+ a/an + 单数可数名词+ as; as + 形容词+复数名词+ as

She is as good many records as possible.我们需要尽量多的唱片。

There is as much sugar in it as eight pieces of sugar.其中的含糖量相当于八块方糖。

I have’t got as much money as I thought.我没有原来想象的那么多钱。

(4)as/so long as 只要;如果

You may use that dictionary as long as you take care of it.只要你好好保存，你可以用那本词典。

as a matter of fact=in fact事实上、实际上……

It seems easy,but as a matter of fact,it’ll take us a long time to work it out.

这道题貌似简单，实际上要解出的话很费时间。

(5)as much/ many as多达……，……那么多

On Sports Day, during the relay race, you will use most of all, perhaps as much as 650 calories an hour.在运动会上，进行接力赛跑时，你消耗的能量最多，可能每小时多达650卡。

As many as 700 different languages are spoken in Africa.非洲有多达700种不同的语言。

He didn’t catch as many as he’d hoped.他没有捉住预想的那么多。

(6)as...as possible; as... as one can

The teacher should write the words on the blackboard as carefully as he can. =The teacher should write the words on the blackboard as carefully as possible.老师在黑板上应尽可能仔细地把字写好。

Please be as friendly as possible to your friends.=Please be as friendly as you can.请对你的朋友尽可能友好。

(7)as...as + 年代数字/名词

As early as 1950 I knew him.早在1950 年我就认识他了。

He walked as far as the post office.他步行到邮局。

(8)as/so far as I know

As/ So for as I know, he will be away from home for 3 months.就我所知，他将要离家3个月。

(9)as soon as—……就……

Please let us know as soon as you arrive in Bejing.一到北京，请通知我们一声。

(10)as well as 和;也;还有

He gave me money as well as advice.他除了给我忠告外，还给我钱。

He studies French as well as English.他不但学习英语，而且学习法语。

区别下列用法

1)as(so)far as 和……一样远，远至(原级比较或表示距离);就……来讲