高三英语必背知识点归纳.docx
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1、高三英语必背知识点归纳英语是高考的重点科目之一,也是同学们日后工作和生活中必须掌握的一 门语言,下面小编为大家带来高三英语必背知识点归纳,欢迎大家参考阅读, 希望能够帮助到大家!高三英语动词必背知识点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.提建议或请求时可用can I, can you表客气,如Can I buy you a drink?can和be able to表能力时的区别。can表一般具有的能力,be able to表在特定条件下的能力,如:Although the driver was badly hurt, he wasabie
2、to explain what had happened.2、may(1)可以,表说话人同意,许可或请求对方许可。You may go.(2)(现在和将来)可能,也许,只用于肯定句和否定句中,如He may not be right.3、must, have tomust表主观上的必须,have to表客观上的必须,如:Its 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
3、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 now? -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意见或向对方请求, 如,Shall we begin our lesson?用于二、三人称陈述句,表说话人命令、警 告、允诺、威胁等口吻,如:You shall fail if you dont workharder.6、should表应该,意为有责任,有义务。如:We should try our best to make our country more beautiful.7
4、、will表有做某事的意志、意愿、安心、打算,如Will you lend me your book?” Yes, I will. 8、should have done表应该做而未做must have done表对过去事实的肯定推测could have done表本可以做某事9、判断句:肯定句用must,否定句用cant,不太肯定用may, mightHe must be in the office now.He must have gone to bed, for the light is out.He cant be in the office. He is at home.He coul
5、dn, t have cleaned 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.高三英语从句知识点总结1、though, although, as 的区别A、Though, although 的主句中可以用 yet, still, nevertheless,但不可 使用butoB、though引导的从句可以倒装,也可以不倒装;as引导的从句必须倒 装;although引导的
6、从句不能倒装。其结构为:形容词/分词/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“ o Although无此 用法。3、某些短道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
7、句主语是第一人称时,宾 语从句谓语的否定习惯上要移到主句谓语上,如:I dont 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(l)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 别,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, seldo
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