2023年AS用法总结_as用法总结.docx

2023年AS用法总结_as用法总结 AS用法总结由我整理，希望给你工作、学习、生活带来方便，猜你可能喜欢“as用法总结”。 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.that 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 busine 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.Unle 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 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 parents./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consideras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 as 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 answer.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 poible /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。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。 if如果用法总结 if如果用法总结. with用法总结 with用法总结. or和and用法总结 or和and用法总结：or通常用于否定句，and用于肯定句。但有时and 也可用于否定句。在否定中并列结构用or 连接，但含有两个否定词的句子实际被看作是肯定结构，因此要用and。扩展资料. it 用法总结 It的用法总结在英语中,it有许多不同的用法,它既可以用作代词(如人称代词、非人称代词)，也可以用作引导词（作形式主语或形式宾语），还可以用来构成强调句型。1.it用作代词(1) 用作. on用法总结 介词on表示时间、地点、方位等.（1）on表示时间,用于星期、日期如：on SundaySundays,on Monday afternoonevening等.on也用于某一日的名词前,用于公共节假日前.如：On New Years Da.