文档介绍：高考常见词as用法总结
近几年高考中有关as一词的题目出现过很多次，其中as或是最佳选项，或是干扰项，或是题干中的关键信息点，涉及as作为连词、介词、关系代词、副词以及****语等各种用法。现结合高考试题将as的用法归纳如下:
一、 用作连词的as
1。 引导时间状语从句,表示“当……的时候”，其用法与when和while类似。例如:As a child (When he was a child）, she was sent to six different schools. 此用法中as多表示从句与主句动作同时进行,一般不与状态动词连用，意为“一边……一边……"。例如:She sang songs as she did her homework。（精品文档请下载）
as 还可以表示一动作紧接着另一动作发生，说明另一动作的结果，有“随着……”的含义。例如：As time went by, we found he was an honest man。/As he grew older， he lost interest in everything except gardening。（精品文档请下载）
例1 It wasn’t until nearly a month later________ I received the manager’s reply.（精品文档请下载）
A。 since B. when
C。 as D。 that
解析：本题中的as与when一起作为干扰项,容易使同学往时间状语从句上思考，事实上本题是强调句，正确选项是D.
2. 引导原因状语从句，表示“由于，因为"，相当于because, 但通常置于句首。例如:As he is a qualified doctor, I trust his advice on medical matters.（精品文档请下载）
例2 _____ modeling business is by no means easy to get into， the good model will always be in demand。（精品文档请下载）
A. While B。 Since
C。 As D。 If
解析：本题中as干扰性很强，很多同学误以为是原因状语从句,但仔细分析不难发现正确答案应是A（while表示“只要”）.
3。 引导让步状语从句，通常可与although或though通用，但语序不同,although或though用于句首，as用于倒装结构。例如：Young as I am， I already know what career I want to follow. /Although(或Though）I am young, I already know what career I want to follow.（精品文档请下载）
as 表示让步用于倒装结构，通常将从句的表语、状语或动词前置。如果表语有冠词a/an， ：Great scholar as he is， he is lacking in common sense。/Much as I like you， I couldn’t live with you。 / Try as he would， he couldn't（精品文档请下载）
open the door.
例3 _____ he has limited technical knowledge， the older worker has a lot of experience.（精品文档请下载）
A。 Since B. Unless
C. As D. Although
解析： as 虽然有引导让步状语从句的用法，但本题不是倒装结构，故正确答案应是D。
4. 引导方式状语从句，表示“如，像”.例如：When in Rome, do as Romans do./Do to others as you would have others do to you。（精品文档请下载）
例4 We wanted to get home before dark， but it didn't quite ______ as planned。（精品文档请下载）
A. make out B。 turn out
C。 go on D. come up
解析: 本题考查动词词组辨析，题干中的“as planned”提供了重要信息，答案选B.
5。 固定句型：“主