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1、高中英语必背知识点总结归纳梳理2021中学英语必背学问点总结归纳 1情态动词与助动词1、can能,可以,表说话人同意,许可还可表客观条件许可,如:You can go now. 提建议或恳求时可用can I, can you表客气,如Can I buy you a drink? can和be able to表实力时的区分。 can表一般具有的实力,be able to表在特定条件下的实力,如:Although the driver was badly hurt,he wasable to explain what had happened. 2、may (1)可以,表说话人同意,许可或恳求对方
2、许可。You may go. (2)(现在和将来)可能,或许,只用于确定句和否定句中,如He may not be right. 3、must,have to must表主观上的必需,have to表客观上的必需,如:It's getting late. I have to go. -Must I go now.-Yes,you must.(No, you needn't./ No, you don't have to.) 4、need,dare这二词有实意动词和情态动词两种词性,如用作实意动词后接动词不定式to do,如用作情态动词后接动词原形。Need I go n
3、ow? -Yes, you must./No, you needn't.) 5、shall用于第一人称疑问句中表说话人征求对方的看法或向对方恳求,如,Shall we begin our lesson?用于二、三人称陈述句,表说话人吩咐、警告、承诺、威逼等口吻,如: You shall fail if you don't workharder. 6、should表应当,意为有责任,有义务。如:We should try our best to make our country more beautiful. 7、will表有做某事的意志、意愿、安心、准备,如Will you l
4、end me your book? Yes, I will. 8、should have done表应当做而未做 must have done表对过去事实的确定推想 could have done表本可以做某事 9、推断句:确定句用must, 否定句用can't,不太确定用may,might He must be in the office now. He must have gone to bed, for the light is out. He can't be in the office. He is at home. He couldn't have clea
5、ned the classroom, because he didn't come here today. He might be in the office, I am not sure. He might have cleaned the room, I suppose. 2让步状语从句1、though,although,as的区分 A、Though,although的主句中可以用yet, still, nevertheless,但不行运用but。 B、though引导的从句可以倒装,也可以不倒装;as引导的从句必需倒装;although引导的从句不能倒装。其结构为:形容词/分词/
6、副词/动词原形/名词(无冠词)+as/though+主语+谓语 2、though可用作副词,放在句末,意为“不过,但是”。Although无此用法。 3、某些短语也引导让步的从句或短语,意为“尽管”,如:in spite of the fact that, despite the fact that,regardless of(the fact that) 句子种类 1、陈述句的否定 (1)在含有宾语从句的主从复合句中,当主句的谓语动词是think, expect, believe, suppose, guess, fancy,imagine等,且主句主语是第一人称时,宾语从句谓语的否定习惯上
7、要移到主句谓语上,如: I don't think he is right. (2)含有否定意义的副词never, seldom, hardly, scarcely, rarely, barely的句子应视为否定句,如: I have never been there before. 2、反意疑问句 (1)need和dare 既可作情态动词,又可作实意动词,在反问部分须加以区分,如We needn't leave, need we? We don't need to leave, do we? (2)陈述部分出现否定意义的副词或代词如never, seldom, few
8、, hardly, little等时,反问部分须用确定形式,如:He seldom comes, does he? (3)陈述部分用不定代词作主语时,反问部分的主语用it ,如:Nothing can stop me, can it? 陈述部分用everybody, everyone, somebody, someone,等作主语时,反问部分常用it,有时也用they,如:Everybody knows that, don't they? (4)陈述部分包括used to 时,反问部分可有两种形式,如: You used to get up early, usedn't (di
9、dn't) you? (5)陈述部分是there + be结构时,反问部分用there,如:There's something wrong with you, isn't there? (6)陈述部分是含有宾语从句的主从复合句时,反问部分的主语和谓语应和主句保持一样,如: He never told others what he thought, did he? 但,假如是I think , I believe等+宾语从句时,反问部分须和从句的动词保持一样,如,I don't think he is right, is he? I don't belie
10、ve he does that, does he? 3、感叹句 用what或how, What a beautiful park it is. How beautiful a park it is. How beautiful the park is. How we worked! 4、祈使句 Take care! Don't stand there. Please open the door for the old lady. 3不定式的构成1、不定式的一般式:不定式的一般式所表示的动作通常与主要谓语的动作同时或几乎同时发生,或是在它之后发生。 如:They invited us t
11、o go there this summer.他们邀请我们今年夏天去那儿。He stood aside for me to pass.他站到一边让我通过。 2、不定式的完成式:不定式的完成式所表示的动作在谓语所表示的动作之后发生,它在句中可作表语、状语、宾语,有时也可作主语、定语等。 如:She seemed to have heard about this matter.她好像已听说过这件事。 I am sorry to have kept you waiting so long.我很愧疚让你等了这么久。 I meant to have told you about it,but I hap
12、pened to have an important thing to do.我原来想告知你这件事的,但我碰巧有一件重要的事要做。 It has been an honor for me to have traveled so much in your country.对我来说,在你们国家旅行这么多地方是一件很荣幸的事情。 3、不定式的进行式:不定式的进行式表示正在进行的与谓语动词同时发生的动作。它在句中可以用作除谓语以外的全部成分。 如:Its nice of you to be helping us these days.你真好,这些天始终帮我们。 He pretended to be l
13、istening to the teacher carefully.他假装在仔细地听老师讲课。We didnt expect you to be waiting for us here.我们没料到你始终在这儿等我们。 4、不定式的完成进行式:假如不定式表示的动作是谓语所表示 5、动词不定式的否定形式是由not或never加不定式构成。如:Try not to be late again next time.尽量下次不要再迟到。He wished us never to meet her again.他希望我们恒久不要再见到她。 6、疑问词+动词不定式:不定式和疑问词whether,what,w
14、hich,whom,where,when,how,why等连用可以在句中起名词的作用,通常跟在tell,know,show,decide,learn,wonder,explain,advise,teach,discuss,find out等动词后面作宾语,有时也可以充当主语、表语等。 如:On hearing the news,he didn't know whether to laugh or to cry.听到这个消息,他不知道该哭还是该笑。 When to hold the meeting has not decided.什么时候开会还没有确定。 The most importa
15、nt problem is how to get so much money.最重要的事情是如何搞到这么多钱。 介词后一般不干脆接不定式,但可以接疑问词+不定式短语作宾语。 如:Mary gave some advice on how to learn English.玛丽提了一些如何学习英语的建议。 I have no idea of how to do it.我不知道该怎么做。 中学英语状语从句学问点总结 1什么是状语从句状语从句 (Adverbial Clause) 状语从句指句子用作状语时,起副词作用的句子。它可以修饰谓语、非谓语动词、定语、状语或整个句子。依据其作用可分为时间、地点、
16、缘由、条件、目的、结果、让步、方式和比较等从句。状语从句一般由连词(从属连词)引导,也可以由词组引起。从句位于句首或句中时通常用逗号与主句隔开,位于句尾时可以不用逗号隔开。 2状语从句考点分析:1. 状语从句虽然有完整的主谓结构,却是不能独立的从句。 2. 状语从句它由从属连词引导成为整个句子一个不行缺少的部分。 3. 考查的热点有条件、时间、地点、让步等状语从句的连接词词义辨析. 4. 动词的时态呼应、状语从句的省略等。 5. 题干结构呈交叉和综合特征,选项设计多从定语从句和名词性从句的角度进行思维干扰。 3状语从句时态特点一般状况下,时间和条件状语从句的谓语动词一般用“一般现在时”表示“一
17、般将来时”,用“现在完成时”表示“将来完成时”。例如: I will call you as soon as I arrive in Beijing. 我到北京就将给你打电话。 (这是由as soon as引导的时间状语从句,从句中的谓语动词arrive是一般现在时,表示一般将来时,绝不行用will arrive) As soon as I have finished this work, I will have gone home. 我一完成此工作,就回家。 (从句中的谓语动词用现在完成时have finished,表示将来完成时,绝不行用will have finished) If he comes back, please let me know.假如他回来了,请通知我。 (从句中的谓语动词用comes back,表示一般将来时,绝不行用will come back) 中学英语必背学问点总结归纳梳理2021