词组 与有什么区别?
1、可以用在肯定句中，表示“像...一样”，后面的形容词或者副词要用原级：
She can run as fast as a deer.她能跑的像鹿一样快。
They work as hard as they do.他们工作像你一样努力
2、在否定句中，和都可以用：
I don't go there as much as I used.我现在到那里不像过去那么多了。
I didn't do as (so)well as I should.我做的不如我应做的那么好。
3、这种句子中也可以有一个表示程度的状语：
I don't speak half as (so) well as you.我讲得不及你一半好。
She can read twice as fast as he does.她的`阅读速度比他快一倍。
注意：as后面的形容词如作定语，而被定语修饰的名词有不定冠词a时，不定冠词a须放在形容词之后。
如：German is as difficult A language as English.德语和英语一样难学。
这样的词序也适合于；
如：I have never seen so beautiful A place as Guilin before.我过去从未去过像桂林这样美的地方。
