as英语用法归纳(2)

as英语用法归纳

　　五)含as的固定词组的用法

学习啦在线学习网 　　1.as soon as作“一…就”解，引导时间状语从句。eg：

　　As soon as I get to Beijing，I'll write to you.我一到北京，就给你写信。

　　2.as/so long as作“只要”解，eg;

学习啦在线学习网 　　As/So long as you study hard，you'll make progress.只要你努力，你就会取得进步。

　　3.as if/though常用来引导方式状语从句，作“好像，仿佛”解。如果从句中讲的是非真实情况，则用虚拟语气。eg：

学习啦在线学习网 　　She loves the child as if/though he were her own.她爱这个孩子如同爱自己的孩子。

　　As if/though也可用来引导表语从句，常用在“It appears/looks/seems...+as if/though”句型结构中。eg;

　　It appears as if/though it is going to clear up.看起来天要晴了。

　　It seems as if/though he knew nothing about it.他好像对此事一无所知。

　　4.as to作“关于，至于”解。eg;

　　There is no doubt as to his honesty.他的诚实是无可置疑的。

学习啦在线学习网 　　5.as much/many as作“多达...”，“达到...之多”解。eg：

　　He can earn as much as 5000 dollars a month.他每月能挣5000美元。

　　6.so/as far as I know作“就我所知”解，在句中作插入语。eg：

　　As/So far as I know，he will come here next Monday.据我所知，他将于下星期一到这里来。

　　7.as a result，as a result of表示“由于...的结果”。eg：

学习啦在线学习网 　　She died as a direct result of the accident.她的死是那次事故的直接结果。

　　8，as well为“也，还”之意。eg：

　　Come early，and bring your brother as well.早点来，把你的弟弟也带来。

　　9.so as to，so...as to若跟动词原形，表示目的或结果。eg：

　　He studied hard so as to pass the exam.他努力学习以便通过考试。(表示目的)

　　as……as

学习啦在线学习网 　　AS +adj(原级)+AS

学习啦在线学习网 　　AS +adv(原级)+AS

　　as soon as 一……就

　　as soon as possible 尽可能快地

　　as early as possible 尽可能早的

　　as carefully as you can 尽可能认真地

学习啦在线学习网 　　as careful as you can 尽可能认真的

　　so...as 一般用于否定句,as...as 一般用于肯定句,(肯定否定都能用)

　　so...as不可用于肯定句.as...as与so...as均可表示"与……一样",as...as...的用法:两个as中间可以加形容词或者副词,由它要修饰的内容决定.

　　它们的用法有异同之处:

　　肯定句用as...as,不用so...as;否定句两者均可使用.例如:

　　I didn't go as /so far as you.我走得不像你那么远.

学习啦在线学习网 　　They walked as far as the station.他们步行到了车站.

　　误:They walked so far as the station.