文档介绍：细心整理
as引导的定语从句
(1) as引导的定语从句修饰表人或物的先行词，即先行词可以是人也可以是物；在定语从句中可以做主语、宾语或表语；常用于the same…as…/such…as…/as(so)…as…句型，as不管在定语从句细心整理
as引导的定语从句
(1) as引导的定语从句修饰表人或物的先行词，即先行词可以是人也可以是物；在定语从句中可以做主语、宾语或表语；常用于the same…as…/such…as…/as(so)…as…句型，as不管在定语从句中作何成分，均不能省略。
①Such teachers as know Tom think him bright. 先行词为人such teachers， as作主语
②I’ll buy the same bike as I lost yesterday. 先行词为物the same bike，as作宾语 ,指同一类事物
※此时留意和the same … that … 引导的定语从句的区分
It’s the same bike that I lost yesterday. that引导定语从句，作宾语，指同一个事物
※ She wore the same dress that she wore at Mary's wedding. (the same…that…特指同一个)
她穿着她在Mary婚礼上穿过的同一条裙子。
She wore the same dress as her young sister wore. (the same…as …泛指同一类)
她穿着和她妹妹所穿的一样的裙子。
That is the same watch as I lost. 那块手表和我丢失的一模一样。(the same…as …泛指同一类)
That is the same watch that I lost. 那就是我丢失的那块手表。 (the same…that…特指同一个)
③The school is just the same one as it was 10 years ago.
先行词为物the same one (school), as作表语
It’s so heavy a box as no one can lift. 先行词为物so heavy a box，as作宾语
此时应留意as引导的定语从句和结果状语从句such / so…that… 的区分
It’s so heavy a box that no one can lift it. 结果状语从句so… that… 如此… 以至于…
※He is such a good student as is liked by everyone. (定语从句，as在从句中作主语)
He is such a good student that he is liked by everyone. 〔结果状语从句such…that…〕 that在从句中不充当任何成分，故不是定语从句，而是结果状语从句
(2) as引导的非限制性定语从句可以修饰整个主句, 可以放在主句前，主句后或插入主句中间。此时as含有“正如…” 之意。常用的as引导的非限