as....as和as的区别

as....as和as的区别

as....as和as的区别：
1、应用场合不同。as....as主要应用于同级的比较，翻译为：（比较时用）像…一样，如同 或者是（指事情以同样的方式发生）和…一样。而as并不表示二者的比较，翻译为：像；如同 。
2、词性不同。as的词性有：prep.作为，以…的身份;如同；conj.由于;像，像…一样;同时，当…时;尽管；adv.同样地，一样地;例如。而as....as第一个as为副词，第二个as为连词。其基本结构为：as+ adj./ adv. +as。
3、用法不同。若有修饰成分时，如twice, three times, half, a quarter等，则须置于第一个as之前。例如：Your bag is twice as expensive as mine.你的袋子比我的贵一倍。



扩展资料：
有关as的短语搭配：
1、as against sth：与…相对照；和…相比较 
例句：
They got 27% of the vote as against 32% at the last election.
这次选举他们得了27%的票，而上次他们得了32%。
2、as and when：（用于在特定条件下才会发生的事情）将来…时，到时候 
例句：
We'll decide on the team as and when we qualify.
将来我们具备了条件时就会决定成立这个队。
3、as for sb/sth：至于；关于 
例句：
As for Jo, she's doing fine.
至于乔，她现在日子过得不错。

as...as意为"和……一样"，表示同级的比较。使用时要注意第一个as为副词，第二个as为连词。其基本结构为：as+ adj./ adv. +as。例如： (1)This film is as interesting as that one.这部电影和那部电影一样有趣。 (2)Your pen writes as smoothly as mine.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。例如： This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。 若有修饰成分，如twice, three times, half, a quarter等，则须置于第一个as之前。例如： Your bag is twice as expensive as mine.你的袋子比我的贵一倍。 几个关于as...as的常见句型： (1)as...as possible Please answer my question as soon as possible.请尽快回答我的问题。 (2)as...as usual/before She looks as pretty as before.她看起来和以前一样漂亮。 (3)as long as... (引导条件状语从句) It took us as long as three years to carry out the plan.我们花了长达三年的时间才完成这项计划。 (4)as far as He walked as far as the railway station yesterday evening.昨天傍晚，他一直散步到火车站。 (5)as well as She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。 as adv.同样地，一样地;例如 prep.作为，以…的身份;如同 conj.由于;像，像…一样;同时，当…时;尽管

在意思上它们是不一样的，在否定句中既可以用not as ...as...也可以用not so...as,而在肯定句中只能用as...as.．． he is as clever as you.(he is not as/so clever as you.) 但下面的句子要特别注意： 1) i'll come back as soon as possible. 2) the clouds are as white as snow. 3) he is so strong as to lift a big stone.(so...as to do:那么．．．．．．以至．．．．．．）