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1、龙文学校 1 对 1 英语辅导教师发现近几年高考试卷中有关 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，涉及到 as 作为连词、介词、关系代词、副词以及习语等各种用法。所以龙文学习校英语辅导教师结合高考真题将 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，意为“一边一边”，一般不
2、与状态动词连用。例如：She sang songs as she did her homework.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.例 1 It wasnt until nearly a month later_ I received the managers reply.A.since B.when C.as D.th
3、at 解析：本题的 as 中与 when 一起作为干扰项，容易使考生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.例 2 _ modeling business is by no means easy to get into,the good model will always be in demand.A.While B.Since C.As D.If 解析：本题
4、中 as 干扰性很强，很多考生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.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
5、果表语有冠词 a/an,需去掉。例如：Great scholar as he is,he is lacking in common sense./Much as I like you,I couldnt live with you.例 3 _ he has limited technical knowledge,the older worker has a lot of experience.A.SinceB.Unless C.As D.Although 解析：as 虽然有引导让步状语从句用法，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
6、Rome,do as Romans do./Do to others as you would have others do to you.例 4 We wanted to get home before dark,but it didnt quite _ as planned.A.make outB.turn out C.go onD.come up 解析：本题考查动词词组辨析，题干中的“as planned”给同学们提供了重要信息，答案选 B。5.固定句型：“主句，as+be/do+主语”表示“也一样”。例如：Shes unusually tall,as are both her pare
7、nts./Hes a doctor,as was his wife before she had children.二、用作介词的 as 1.表示“如，像”。例如：They got united as one man./She spoke of me as her dearest friend.2.表示“作为、当作”。例如：As a League member,you should think more of others.3.与某些动词搭配，表示“把当作”，如：look onas,regardas,treatas,consideras,think ofas,seeas等。其中 conside
8、ras中的 as 可以省略。as 与famous 或 known 搭配，表示“作为而出名”。例 5 Linda worked for the Minnesota Manufacturing and Mining Company,_ as 3M.A.knowingB.known C.being knownD.to be known 解析：如果熟悉 be known as 这一短语，运用有关非谓语动词的常识，可选出正确答案B。三、用作关系代词的 as 1.引导限制性定语从句，先行词前通常有as,so,such,same等修饰语。例如：He will marry as pretty a girl a
9、s he can find./My hometown is no longer the same as it used to be./As many people as are present will be given a present.在此种用法中，同学们要注意与结果状语从句的区别。比如：A:The teacher asked us such a difficult question that none of us could answer it.B:The teacher asked us such a difficult question as none of us could an
10、swer.A句为结果状语从句，而 B句则是定语从句。2.引导非限制性定语从句，用来指代整个主句（即先行句），表示“这一事实，那一情况”。从句可以位于句首、句中或句末。例如：We stand when the national anthem is played,as is the custom.例 6 _ I explained on the telephone,your request will be considered at the next meeting.A.When B.After C.As D.Since 解析：根据句意，选项 C是正确答案。as 表现的正是本点所讲用法。四、用作副
11、词的 as 修饰形容词或副词，表示程度，意为“同样地”。例如：He swims fast,but I swim just as fast.但它通常构成表示比较的结构“asas”，“not asas”。此结构中第一个as 是副词，第二个as 是连词。否定结构中的副词as 可以由so 代替。asas possible/one can 也属于此用法。例如：It is generally believed that teaching is as much an art as it is a science.五、用在习语中的 as 由 as 构成的习语很多，常见的有：as soon as“一就”，引导时
12、间状语从句；as/so long as“只要”引导条件状语从句；as if/though“好像，仿佛”，引导方式状语从句或表语从句；as to/as for“至于，就而言”；as much/many as“多达”；as/so far as“就的限度”；as a result，as a result of“（由于的）结果”；as a matter of fact“事实上”；as well“也、还”；A as well as B“不但A而且 B”；as it is“照现状看，看样子”，等等。这些习语在高考中可能经常遇到，在高考题中有的作为正确选项，有的作为干扰项，有的出现在题干，值得同学们认真掌握
13、。例如：例 9 I would like a job which pays more,but _ I enjoy the work Im doing at the moment.A.in other wordsB.on the other hand C.for one thing D.as a matter of fact 解析：选项 D极具干扰意义，但进一步研读会发现本题中的两个分句表达了一件事的两个对立面，故选 B。例 10 People should stop using their cars and start using public transport._.The roads are too crowded as it is.A.All right B.Exactly C.Go aheadD.Fine 解析：本题选项中虽没有 as 内容，但题干中的 as it is 却是解题的关键信息，正确选项为 B。以上所总结的是 as 一词的主要用法及在高考卷中的具体应用，可以看出它词性多，词义广，用法灵活。龙文学校辅导教师希望同学们在复习中一定要理清思路，抓住重点，应用时仔细分析上下文，弄清逻辑关系，才能作出正确选择。