as的含義：prep.像；如同；作為；當作；adv.(比較時用)像…一樣，如同；(指事情以同樣的方式發(fā)生)和…一樣；conj.當…時；隨著；照…方式；因為；由于。那么as有哪些用法呢？

as的六種用法

1、as做介詞，意思是“作為”

eg.French is known as the most beautiful language in the world.法語以世界上最美麗的語言著稱。

2、as做連詞，引導時間狀語從句，意思是“當……的時候”

eg.My mother was cooking fish as I arrived home.當我到家的時候，我媽媽正在做魚。

3、as做連詞，引導原因狀語從句，意思是“因為”

eg.As rain has fallen, the air is cooler. 因為下過雨，所以空氣比較涼爽。

4、as做連詞，引導讓步狀語從句，意思是“雖然”

eg.Young as he is, he has been one of the most famous painters in our country. 雖然他還很年輕，但已經(jīng)成為我們國家最有名的畫家之一。

5、as做連詞，引導方式狀語從句，意思是“以……方式”

eg.Do as the Romans do when in Rome. 入鄉(xiāng)隨俗

6、as做關(guān)系代詞，引導定語從句

eg.This is the same game as I played yesterday.這和我昨天玩的游戲一樣。

as的例句

1、You need to be able to work as part of a team.

你必須能作為團隊的一員去工作。

2、She used her family's history as a base for her novel.

她以她的家族史作為小說的素材。

3、My new job is much the same as the old one.

我的新工作和舊工作差不多。

4、Take as much time as you like.

你想花多少時間就花多少時間。

5、Research will be needed as a preliminary to taking a decision.

作出決定之前需要進行研究。