例如：

This film is as interesting as that one (is).

这部电影和那部电影一样有趣。

Your pen writes as smoothly as mine (does).

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…结构。例如：

This dictionary is not as/so useful as you think it is.

这部字典不如你想象的那样有用。

I didn"t catch as many as I had expected.

我抓到的不如我预想的那么多。

若有修饰成分，如twice, three times, half, a quarter等，则其必须置于第一个as之前，例如：

You are not half as clever as you think you are.

你可不象自己想象的那么聪明。

She isn't going out with a man who is twice as old as she.

她不打算和一个比她大一倍的人出去散步。

还几个关于as…as…的固定句型，请注意：

（1）as…as possible/can：尽可能的

Please answer my question as soon as possible. 

请尽快回答我的问题。

The detective is searching the man as carefully as he can.

那个侦探正在尽可能仔细地搜那个男子的身。

（2）as…as usual/before：像以前一样……

She looks as pretty as before.

她看起来和以前一样漂亮

Though they failed, they still worked as hard as before. 

尽管他们失败了，但他们仍像以前一样努力工作。

（3）as long as：达……之久；和……一样长；只要（引导条件状语从句）

It took us as long as three years to carry out the plan.

我们花了长达三年时间才完成这项计划。

This rope is as long as that one.

这条绳子和那条一样长。

I will stay with you as long as there is a room free. 

要是你有一间空余的房子，我就住在你这里。

（4）as far as：远至；就……而论，据……

He walked as far as the railway station yesterday evening.

昨天傍晚，他一直散步到火车站。

As/So far as I know, the library won"t open until eight o"clock.

据我所知，图书馆要到八点钟才开门。

（5）as well as：和……一样好；也；既……又……；除……外，还……

She sings as well as she plays.

她唱得好，弹得也好。

The child is lively as well as healthy.

这孩子既健康又活泼。

Tom, as well as his brothers, enjoys playing football. 

汤姆和他的哥哥们都喜欢踢足球。

He gave me his help as well as his criticism.

他除了给我批评外，还给我帮助。（这时强调帮助）

最后，一些带有as…as…的常见短语也值得留意，给大家归纳一些：

as black as coal 

像煤一样黑

as brave as a lion

像狮子一样勇敢

as busy as a bee

像蜜蜂一样忙碌

as easy as ABC

像ABC一样容易

as firm as rock 

像山岩一样坚定

as free as a bird

像小鸟一样自由

as blind as a bat

像蝙蝠一样瞎

as hot as fire 

像火一样热

as light as a feather 

像羽毛一样轻

as patient as an ox

像牛一样能忍耐

as poor as a church mouse

像教堂的老鼠一样贫穷

as quick as lightning

像闪电一样快

as sweet as honey

像蜜一样甜

as white as snow

像雪一样白

as stupid as a donkey

像驴子一样笨