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”。
一、as…as常见短语
as busy as a bee像蜜蜂一样忙碌
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
as rich as a Jew像犹太人一样富裕
二、as…as双语例句
1.There were as many as 200 people at the lecture.
听讲的有200人之多。
2.It's not as hard as I thought.
这没有我想象的那么困难。
3.Find out as much as you can about him and report back to me.
尽量查找有关他的资料，向我汇报。
4.As far as I am concerned, you can do what you like.
就我而言，你想干什么就可以干什么。
5.As far as I can see, you've done nothing wrong.
依我看，你没有做错任何事。
6.They're welcome to stay here as long as they like.
他们在这里愿意住多久就住多久。
