as…as的意思是：与……一样。as…as中间通常只能用形容词或副词的原级，不能用比较级或最高级。as可以用作连词、副词、介词，作连词时意思是“因为，由于;以……的方式，像;正如;尽管”，作副词时意思是“如同，像……一样”，作介词时意思是“作为;以……身份;当作;如同”。

as…as用法是什么

as的几种用法：

1.做连词，固定搭配as……as，意思是“和……一样”;

2.做连词，表示“当……的时候”;

3.做连词，表示“因为”

4.做连词，表示“尽管”等。

1.as做连词，固定搭配as……as，意思是“和……一样”

例句：

My sister is as tall as me.

我姐姐和我一样高。

He runs as fast as me/I.

他和我跑得一样快。

She is as beautiful as me/I.

她和我一样漂亮。

Being a mother isn't as bad as I thought at first!

做一位母亲并不像我当初想的那样糟!

2.as做连词，引导时间状语从句，意思是“当……的时候”

例句：

My mother was cooking fish as I arrived home.

当我到家的时候，我妈妈正在做鱼。

I was always hard up as a student.

我当学生时总是很拮据。

The crowd cheered as she went up the steps to the bandstand.

当她走上演奏台的台阶时，人群欢呼起来。

All the jury's eyes were on him as he continued.

所有陪审员的目光在他继续下去时都集中在了他身上。

as固定搭配短语

as well同样 ; 也 ; 还是……为好 ; 一样

such as例如 ; 诸如 ; 比如 ; 像

as always一如既往 ; 就像以前一样 ; 成永远

as well as既…又…，除…之外(也)，此外

as with 正如……一样

as far as 远至……，就……而言;

as good as 是“和……一样好”;几乎一样;实际上等于

as many/much as+数词 多达……;

as a consequence因此;结果

as a consequence of 由于……

as far as I can 尽我所能

as it were或者说

as soon as表示“一……就”。