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1、高三英语语法知识点高三英语语法学问点1 强调句句型 1. 陈述句的强调句型：It is/ was + 被强调部分(通常是主语、宾语或状语)+ that/ who(当强调主语且主语指人)+ 其他部分。 e.g. It was yesterday that he met Li Ping. 2. 一般疑问句的强调句型：同上，只是把is/ was提到it前面。 e.g. Was it yesterday that he met Li Ping? 3. 特别疑问句的强调句型：被强调部分(通常是疑问代词或疑问副词)+ is/ was + it + that/ who + 其他部分? e.g. When a
2、nd where was it that you were born? 4. 强调句例句：针对I met Li Ming at the railway station yesterday.句子进行强调。 强调主语：It was I that (who) met Li Ming at the railway station yesterday. 强调宾语：It was Li Ming that I met at the railway station yesterday. 强调地点状语：It was at the railway station that I met Li Ming yester
3、day. 强调时间状语：It was yesterday that I met Li Ming at the railway station. 5. 留意：构成强调句的it本身没有词义;强调句中的连接词一般只用that， who，即使在强调时间状语和地点状语时也如此，that， who不行省略;强调句中的时态只用两种，一般现在时和一般过去时。原句谓语动词是一般过去时、过去完成时和过去进行时，用It was ，其余的时态用It is . 二、not until 句型的强调句 1. 句型为：It is/ was not until + 被强调部分 + that + 其他部分 e.g. 一般句：He
4、 didn't go to bed until/ till his wife came back. 强调句：It was not until his wife came back that he went to bed. 2. 留意：此句型只用until，不用till.但假如不是强调句型，till， until可通用;因为句型中It is/ was not 已经是否定句了，that后面的从句要用确定句，切勿再用否定句了。 三、谓语动词的强调 1. It is/ was that 结构不能强调谓语，假如须要强调谓语时，用助动词do/ does或did. e.g. Do sit down.
5、 务必请坐。 He did write to you last week. 上周他的确给你写了信。 Do be careful when you cross the street. 过公路时，务必(千万)要当心啊! 2. 留意：此种强调只用do/ does和did，没有别的形式;过去时用did，后面的谓语动词用原形。 高三英语语法学问点2 as, though, although引导的让步状语从句。 留意although位于句首;though位于句首或句中;as位于句中=though。它的词序是把句中强调的形容词、副词、动词或名词放在连词前。参考倒装结构 请留意下列句式的改变： 例句 1. A
6、lthough/Though I'm young, I already know what career I want to follow. Young as/though I am, I already know what career I want to follow. 我虽然年轻，但我已经明白我应当追随什么样的事业。 2. Although/Though I respect him very much, I cannot agree with his idea. Much as/though I respect him, I cannot agree with his idea.
7、 虽然我很敬重他，但是我不同意他的观点。 3. Although/Though he is a child, he knows a lot of Chinese characters. Child(省略冠词)as/though he is, he knows a lot of Chinese characters. 他虽然还是个孩子，却相识了很多汉字。 4. Although he tried, he couldn't solve the problem. Try as he might, he couldn't solve the problem. 尽管他努力了，但是他没有解
8、决问题。 5. Although it is raining, I'm going out for a walk. Raining as it is, I'm going out for a walk. 天虽然在下雨，我还是要出去漫步。 6. Strange as it may seem, nobody was injured in the accident. 这次意外虽然显得不行思议，却没有人受伤。 7. Much as I would like to help, I have a lot to do. 虽然我很想帮助你，但是我有许多事要做。 8. Object as you
9、 may, I will go. 纵使你反对，我也要去。 高三英语语法学问点3 反意疑问句中的易错点 1.在一般疑问句中，无论确定的问或是否定的问，假如回答为确定则用yes，反之则用no.特殊留意假如出现省略则看下文所示意的意义。? Are?you?a?new?comer? Yes,?I?came?here?only?yesterday.? Isnt?Tom?a?good?student? Yes,?he?is?excellent.? Dont?you?think?the?composition?good? No,?It?cant?be?any?worse.? 留意：在句中，当回答的意思与问句
10、相一样时，则用No，译为“是的”，当回答的意思与问句相反时，则用Yes，译为“不”? 2.情态动词must? ?I?must?leave?now,?mustnt?I? ?He?must?be?in?the?classroom,?isnt?(表推想)? ?He?must?have?finished?his?homework,?hasnt?he?(表现在的结果)? ?He?must?have?finished?his?homework?yesterday?afternoon,didnt?he?(表过去)? 当句子中有表示揣测的情态动词时，其反意疑问句的构成不能再用原句中的情态动词，而应依据原句在去
11、掉情态动词的状况下的主谓关系来确定其反问形式。? 高三英语语法学问点4 名词性从句的几个难点 (一)that不行省略的状况 1、主语从句，that从句置于句首时; 2、当一个句子有两个或多个并列的宾语从句时，引导其次和以后几个从句的that不行省略; 3、由it作形式宾语时，that引导的宾语从句中，that不行以省略。 (二)wh-ever与no matter wh-的用法区分 Wh-ever既可引导名词性从句，又可引导让步状语从句;而no matter wh-只能引导让步状语从句。 (三)as if/though, because, why可以引导表语从句 留意：because引导的表语从
12、句，主语不能是reason或cause,而且since,as不能引导表语从句。 (四)that引导的同位语从句与关系代词that引导的定语从句的区分 That引导的同位语从句成分是完整的，that在从句中不担当任何成分;that引导的定语从句成分是残缺的，that在从句中充当主语、宾语或表语。 高三英语语法学问点5 助动词 1)帮助主要动词构成谓语动词的词叫助动词。被帮助的动词称作主要动词。助动词自身没有词义，不行单独运用。例如： He doesnt like English.他不喜爱英语。 (doesnt是助动词，无词义;like是主要动词，有词义) 2) 助动词帮助主要动词完成以下功用，可
13、以用来： a. 表示时态。例如： He is singing.他在唱歌。(北京安通学校供应) He has got married.他已结婚。 b. 表示语态。例如： He was sent to England.他被派往英国。 c. 构成疑问句。例如： Do you like college life?你喜爱高校生活吗? Did you study English before you came here?你来这儿之前学过英语吗? d. 与否定副词not合用，构成否定句。例如： I dont like him. 我不喜爱他。 e. 加强语气。例如： Do come to the party
14、tomorrow evening. 明天晚上肯定来参与晚会。 He did know that. 他的确知道那件事。 3) 最常用的助动词有：be, have, do, shall, will, should, would等。 3 助动词be的用法 1) be +现在分词，构成进行时态。例如： They are having a meeting.他们正在开会。 English is becoming more and more important. 英语现在越来越重要。(北京安通学校供应) 2)be + 过去分词，构成被动语态。例如： The window was broken by Tom.窗户是汤姆打碎的。 高三英语语法学问点