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as 用法知多少 专题辅导 不分版本一. 用作连词 1. 引导原因状语从句。此时，as一般放在句首，语气较弱，较口语化。考例：Jenny was very sad over the loss of the photos she had shot at Canada, ______ this was a memory she especially treasured. (2006 广东)A. as B. if C. when D. where （A） 2. 引导时间状语从句。多表示主句和从句的动作同时发生，具有延续的含义。如：You will grow wiser as you grow older. 随着年龄的增长你会越来越聪明。 3. 引导让步状语从句。所表示的语气较强，从句一般用倒装语序。考例：________, I have never seen anyone who’s as capable as John. (2001 上海)A. As long as I have traveledB. Now that I have traveled so muchC. Much as I have traveledD. As I have traveled so much （C）二. 用作关系代词 1. as用作关系代词引导定语从句时，常译为“正如……”。考例：The Beatles, ______ many of you are old enough to remember, came from Liverpool. (2006天津)A. what B. that C. how D. as （D） 2. 常用于the same… as 结构中。如：Don’t make the same mistake as I did. 不要和我犯同样的错误。 3. 用于such… as 结构中。如：She is such a girl as we all like. 她是一个这样的女孩，以至于我们都喜欢她。三. 用作介词。意思是“作为”，“以……的身份”。如：We are learning French as a second foreign language. 法语是我们的第二外语。四. 用作副词。意思是“与……等同”，“像……”，“如……”。如：Helen is clever, but her brother is just as clever. 海伦很聪明，她的弟弟同时聪明。五. 常用短语 1. as… as possible 意为“尽可能……”。如：He was running as fast as possible.他在拼命地跑。............
