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as的六种用法1、as做介词,意思是“作为”
eg.French is known as the most beautiful language in theworld.法语以世界上最美丽的语言著称。
2、as做连词,引导时间状语从句,意思是“当……的时候”
eg.My mother was cooking fish as I arrived home.当我到家的时候,我妈妈正在做鱼。
3、as做连词,引导原因状语从句,意思是“因为”
eg.As rain has fallen, the air is cooler. 因为下过雨,所以空气比较凉爽。
4、as做连词,引导让步状语从句,意思是“虽然”
eg.Young as he is, he has been one of the most famous painters in ourcountry. 虽然他还很年轻,但已经成为我们国家最有名的画家之一。
5、as做连词,引导方式状语从句,意思是“以……方式”
eg.Do as the Romans do when in Rome. 入乡随俗
6、as做关系代词,引导定语从句
eg.This is the same game as I played yesterday.这和我昨天玩的游戏一样。
as引导定语从句as引导定语从句时,既可以引导限定性定语从句,又可以引导非限定性定语从句。区分as引导定语从句和其它从句的关键特征是:as引导定语从句时在从句中做成分,通常做主语或宾语。
1、as引导限定性定语从句。
如从句所修饰的名词前有such、the same、as出现,后面的定语从句将由as引导,形成such...as,thesame...as,as…as这样的固定结构,译为“和……一样”。
例句:
I never heard such stories as he told.
我从未听过他所讲的那样的故事。
He’ll repeat such questions as are discussed in the book.
他将重复书中讨论过的问题。
They made the same mistake as others would have made on such an occasion.
他们犯了和其他人在这种场合下会犯的同样错误。
2、as引导非限定性定语从句。
as引导非限定性定语从句,往往指代一整句话,通常表示“正如”的意思。as引导的非限制性定语从句位置相对比较灵活,可以位于先行词之前、之后或中间。
例句:
As is known to everybody, the moon travels round the earth.
众所周知,月亮绕着地球转。
as的固定搭配as far as I am concerned 在我看来
as soon as 一...就...
as far as I know 据我所知
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