2013中考英语备考：多变的“as”(必背重点)-中考-中考英语-上海中考-上海中考英语-出国留学百科常识-出国留学网

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2013中考英语备考：多变的“as”(必背重点)

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    as词性多,词义广,用法灵活,现将其用法归纳如下:
    I. as作副词, 表示程度, 意为“同样地”。“as…as…”,表示“和/与……一样”,是同级比较,其中第一个as是副词;否定句中常用“not so…as…”,表示“和/与……不一样”。如:
    Jack is as tall as his father.杰克和他的父亲一样高。
    He doesn’t speak English so/ as fluently as you.
    他的英语说得不如你流利。
    II. as作介词。
    ①如,像
    They got united as one man.
    他们团结得像一个人一样。
    She spoke of me as her dearest friend。
    她谈起我犹如我是她最亲密的朋友。
    ②充当,作为
    As a writer, he was famous.作为作家,他是很有名的。
    English is spoken as the first language by most people in Australia.
    在澳大利亚,大多数人把英语作为第一语言。
    ③当某人是(某身份)时
    As a child (=When he was a child),he lived in the countryside.他小时候住在农村。
    III. as作连词, 常用来引导状语从句
    ①引导时间状语从句, 表示“当……的时候”;“随着……”。如:
    He shouted loud as he ran along.
    他一边往前跑,一边高声地呼喊。
    We get wiser as we get older.
    随着年龄的增长,我们变得更聪明。
    ②引导原因状语从句,表示“因为,由于”。如:
    As it was getting very late, we soon turned back.
    因为很晚了,我们很快就回来了。
    I must stop writing now, as I have rather a lot of work to do.
    我必须停笔了,因为我还有许多工作要做。
    ③引导比较状语从句,表示“像……一样地”。如:
    They always work as hard as we do.
    他们工作总是像我们一样努力。
    (句中第二个as是连词,引导比较状语从句,也属于同级比较)
    IV. as作关系代词, 引导定语从句,表示“正如……”。如:
    He was a foreigner, as I knew from his accent.
    他是个外国人,这一点我是从他的口音中听出来的。
    [相关链接] 含as的固定词组
    as soon as 一……就……
    as... as possible = as... as one can 尽可能地……
    as/ so long as 只要
    as if/ though 好像,仿佛
    as to 关于,至于
    as much/ many as 多达……,达……之多
    so/ as far as I know 就我所知,在句中作插入语
    as a result, as a result of 结果;由于……的结果
    as well 也,还
    山东张新峰
    ?

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