主语从句语法总结
主语从句知识点总结：
一，主语从句的定义：在句中充当主语的从句。
二，主语从句的引导词：
连接代词：
注意：由that 引导的主语从句，有时为了使句子结构平衡，避免“头重脚轻”，常用it作形式主语，而把从句放后面。
例：That students should hard work is necessary.
改为it作形式主语：It is necessary that students should hard work.
构成一些常用句型：
1）It is + n.（名词）+从句
It is a pity/shame that... 遗憾的是....
It is a surprise that... 令人惊奇的是...
It is a fact that... ..是事实
It is common knowledge that... …..是常识
例句：It is a pity that(很遗憾)we lost the match.
It is a fact that(这是事实）he cheated in the exam.
2) It is + adj.（形容词）+从句
It's certain that... 肯定...
It is possible that... 很可能.....
It is unlikely that... 不可能....
It is obvious that... 很明显...
It is necessary \important \natural\...that...+(should) +do...
例句：It is possible that （很可能）she will come back tomorrow.
It is obvious that (很明显)this measure is effective.
3）lt+ be + 动词的过去分词+ that从句
4）lt+ be + 不及物动词+ that从句
三，主语从句的用法规则：
规则一：
主语从句中使用陈述语序。即主语在前，谓语在后。
例：When he will come is not known.
规则二：
主语从句中是主谓一致关系，谓语动词用单数，取决于所跟的表语。
例：What I want is water.
What I want are apples.
规则三：
That 在主语从句中不能省略。
规则四：
引导主语从句在句首只能用whether，有it作形式主语的whether/if都可以.
四，主语从句------学法指导
依据“缺什么补什么”原则确定正确的连词。
所谓“缺什么补什么”是指从句与连词之间关系。
如果句子中缺主语，指人用who，指物用what；
如缺宾语，指人用whom，指物用what;
如缺时间状语用when; 地点状语用where; 原因状语用why; 方式状语用how；定语用what或which;
什么都不缺用that. Wether表“是否”
高中英语语法：主语从句的考点分析与专项训练
高中英语语法主语从句 第一节主语从句 1．考点解析。 1．主语从句一般分为三类：由what等代词引导的主语从句；由连词that 引导主语从句，多数情况下由it作形式主语，that从句放到句子后面去；由连接代词或连接副词（或whether）引导的主语从句。 What they are after is beauty. It is not your fault that we can’t arrive on time. When they will arrive has not been decided. 2. 由关系代词what引导的主语从句，也可由whatever（“所…的一切”）或 whoever（“一切…的人”）引导。 Whatever he wants is your support. Whoever comes will be welcome. 3. 大多数主语从句都可用it代替，作形式主语，把主语从句放在句尾。要注意it代替主语从句和it引导的强调句的区别。强调句的结构是it is/was….+that…，强调人是可把that 换做who，whom，whose。如强调的是状语时，也只能用that,而不能用when, where, how, why等。 It was in Paris that they fell in love with each other. It is the lady who was my English teacher. It was last semester that he won the first prize. 2. 试题详解。 1．______ he needs is more experience. A. Who B. That C. What D. How 2.It was because of the heavy snow ______ the train was late. A. why B. that C. so D. thus 3．It doesn’t matter ______ he likes or not. A. whether B. what C. when D. that 4______ he has won the Noble Prize has been proved to be true. A. What B. How C. It D. That 5．What he wants _______ to sleep more. A. are B. have been C. is D. were 6．______ we can begin this investigation is still a question. A. When B. Why C. What D. That 7．It is ______ that the highway will be open to traffic nest year. A. report B. reported C. reporting D. by report 8．______ fails to see this will make a big mistake. A. Whatever B. what C. wherever D. Whoever 9．It is a mystery _____ the prisoner escaped. A. why B. how C. what D. that 10．It was last summer _____ he graduated from the college. A. that B. when C. / D. where 3. 实战演练。 1. We didn’t know ______ she didn’t come. A. why B. that C. when D. it 2. It is still doubtful _______ she would play the part.
定语从句专项知识点总结汇总
定语从句专项知识点总结汇总 - 定语从句(Attributive Clauses)在句中做定语，修饰一个名词或代词，有时也可以修饰部分或整个句子。 被修饰的名词，词组或代词即先行词。定语从句通常出现在先行词之后，由关系词(关系代词或关系副词)引出。 关系代词有：who, whom, whose, that, which, as。 关系副词有：when, where, why, how。 关系代词和关系副词放在先行词和定语从句之间，起连接作用，同时又可做定语从句的一个成分。当关系代词做宾语时可以省略。 定语从句中的谓语动词必须在人称上和数量上和先行词保持一致。 定语从句分为限制性定语从句和非限制性定语从句。 1 关系代词引导的定语从句 1) who, whom, that 这些词代替的先行词是人的名词或代词，在从句中所起作用如下：
Is he the man who/that wants to see you? (who/that在从句中作主语) He is the man whom/ that I saw yesterday. (whom/that在从句中作宾语) 2) whose 用来指人或物，(只用作定语，若指物，它还可以同of which互换). 例如： Please pass me the book whose (of which) cover is green. 3) which, that 它们所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等. 例如： A prosperity which / that had never been seen before appears in the countryside. (which / that在句中作宾语) The package (which / that) you are carrying is about to come unwrapped. (which / that在句中作宾语) 关系代词that和which 都可以指物，that 和Who 都可以指人，其用法区别：
主语从句 & 表语从句
主语从句& 表语从句 【观察】观察下列句子中从句的用法，然后加以总结。 1. What we need is more time while what they need are more people. 2. It was not known whether/if he would come to the party. 3. Whether we will go fishing tomorrow depends on the weather. 4. Do you think it is necessary that we (should) have all the chairs replaced? 5. It is suggested that you (should) attend the opening ceremony. 6. The question remains whether they will be able to help us. 7. My suggestion is (that) you (should) discuss your problems with your parents first. 8. The reason why I was late this morning is that I missed the early bus. 9. He was very busy. That was why he didn’t come here. 10. Tom looked sad. That’s because he didn’t pass the exam. 11. The house smells as if it hasn’t been lived in for ye ars. 12. Dressed in red, she looks as if she were ten years younger. 13. Has it been decided when we’ll have the final examination? 【总结】 主语从句和表语从句都属于名词性从句。主语从句在复合句中作主语，表语从句在复合句中作表语。在具体的应用中要掌握以下几点： ● 引导词(详见P138-139, B7) 注意易错引导词： (1) 引导主语从句位于句首时只能用whether (如例句3)，句中可用if (如例句2)，引导表语从句只能用whether (如例句6)； (2) 主句的主语是reason时，表语从句要用that，不能用because引导(如例句8)； (3) 引导表语从句时，why强调结果(如例句9)，because强调原因(如例句10)； (4) that只起连接作用，不在从句中作成分，无词义。引导主语从句时不能省略，引导表语从句时可以省略。 ● it作形式主语 有时为避免句子头重脚轻，常用it代替主语从句作形式主语放于句首，而把主语从句置于句末。主句的谓语动词一般用单数形式： (1) 常用句型：It+be+名词词组/形容词/过去分词+ that从句(如例句4-5)； (2) 在由连词wh-引导的主语从句中，从句可放在句首，也可用it作形式主语而把从句放在句末(如例句2、 13)。 ● 语序：主语从句和表语从句必须用陈述语序。 ● 主谓一致 主语从句作主语时谓语动词用单数形式。what引导主语从句，主句的谓语动词多用单数形式，但若表语是复数时，谓语动词用复数形式(如例句1)。 ● 语气
xx考研英语语法复习主语从句
xx考研英语语法复习主语从句 在复合句中充当主语成分的句子叫作主语从句。具体形式为：引导词引导一个从句作主语;或者it作形式主语+谓语/系表结构+引导词+从句。 ⑴陈述句充当主语从句，连词为that(that没有实际含义，在从句中只起连接作用，不在从句中作任何语法成分)，从句为"that+陈述句"，that不能省略。 【例句】 That Chris Lee won the champion of Super Girl in xx arouse wide public concern. 李宇春赢得xx年超女冠军这件事引起了社会的广泛关注。 ⑵一般疑问句充当主语从句，连词为whether(whether"是否"的含义，在从句中只起连接作用，不在从句中作任何语法成分)，从句为"whether+陈述句语序"，whether不能省略。 【例句】 Whether this is true or not remains a mystery. 这是对是错还是个谜。 ⑶特殊疑问句充当主语从句，连词为特殊疑问词(特殊疑问词都有自己的含义，在从句中作一定的语法成分)，从句为"特殊疑问词+陈述句语序"，特殊疑问词不能省略。 【例句】 例1 --what
What caused the aident remains unknown. 是什么引起了这一事故仍然。 例2--where Where my wife and I should enjoy our honeymoon is still unsettled. 我太太和我应该去哪享受我们的蜜月还没有最后决定。 例3 --which Which university I should choose to continue my further education is a question of great importance. 我应该考哪个大学的研究生是个很重要的问题。 例4--when When and where the test will be given is not yet decided. 什么时候在什么地方进行考试还没定下来。 例5---ever Whoever gets the job will have a lot of work to do. 任何得到这份工作的人都将要有很多工作要做。 例6--how How we can protect the grain from damp needs to be discussed. 我们怎样才能保护粮食不受潮需要讨论讨论。 3.It句型
(新)高中英语语法定语从句总结全
高中英语定语从句详解 Ⅰ. 概念： (1) 定语从句：在主从复合句中用作定语的从句叫定语从句。定语从句一般紧接在先行词(antecedent)后面。 (2) 先行词：被定语从句修饰的成份。先行词可以为一个词，短语，或整个主句。 (3) 引导定语从句的词叫关系词，分为关系代词和关系副词。 关系词的作用： 1) 引导定语从句，连接主句和从句，相当于一个连词； 2) 必在从句中作某个句子成份（可以做主语，宾语，表语，定语，状语） 常用的关系代词: that、which、who、whom、whose,当关系代词在定语从句中做宾语时，关系代词可以省略。 常用的关系副词（在从句中只作状语）: when（时间状语）、why（原因状语）、where（地点状语） 可以修饰人的关系代词：that, who, whom, whose 可以修饰事的关系代词：that, which, as, whose, The student who answered the question was John. I know the reason why he was so angry. The boy (whom) you are talking to is my brother. I'd like a room whose window faces the sea. 定语从句三步： 第一找出先行词； 第二看先行词在定语从句中的语法功能（做主语、宾语、表语或状语）； 第三选择合适的关系词。 Ⅱ. 几个关系代词的基本用法： ●that: 可指人或物；在定语从句中作主语，宾语，表语。(指人时，相当于who 或whom；指物时，相当于which)(一般不用于非限制性定语从句; 不可置于介词后作宾语) 如： 1. A letter that/which is written in pencil is difficult to read. (主语) 2. Do you know the gentleman that/who spoke just now? 3. You can take anything ( that) you like. （宾语） 4. What is the question (that/which) they are talking about? 5. Here is the man ( who/whom/that ) you want to see. 6. She's no longer the girl ( that) she used to be before.（表语） 7. Our hometown is no longer the one (that) it used to be. （= Our hometown is not the same as it used to be. = Our hometown is different from what it used to be。 = Our hometown is not what it used to be.） ●which: 指物；在定语从句中作主语，宾语。如： 1. The book which/that was on the desk was bought by my father.（主语） 2. The book (which/that) I bought yesterday is very interesting.（宾语） ●who, whom, whose: who: 主格, 在从句中作主语，只可指人 whom: 宾格，在从句中只能作宾语; 只可指人 whose: 表所属关系，在从句中作定语。译为：某人的，某物的
主语从句+表语从句
※※※ 主语从句： 1. What he needs is the shirt of a happy person to wear. 2. What his father said made him think carefully. 3. Whether you can do this depends on your learning habits. ※※※ 表语从句： 1.It was exactly what I needed. 2.This is what he said. 3. That is because it is a very direct question. 4. That’s because he was a really good student. 5. Another popular idea is that Stonehenge might be a kind of calendar. 6. Other advantages of bike riding are that it’s good for health. 7. One of the greatest mysteries is how it was built because the stones are so big and heavy.
8. That’s how people in Japan are expected to greet each other. 9. That’s when I decided to change. 关键部位已标蓝： ※※※ 主语从句： 1. What he needs is the shirt of a happy person to wear. 2. What his father said made him think carefully. 3. Whether you can do this depends on your learning habits. ※※※ 表语从句： 3.It was exactly what I needed. 4.This is what he said. 3. That is because it is a very direct question. 4. That’s because he was a really good student.
初中英语语法——三大从句汇总(重点笔记)
初中英语语法——三大从句汇总 在英语中，主要有三大从句，即名词性从句（包括主语从句，宾语从句，表语从句，同位语从句）、形容词性从句（即定语从句）、副词性从句（即 状语从句,包括时间、条件、结果、目的、原因、让步、地点、方式等）。以 下是一些基本的从句的语法知识点 A、定语从句专项讲解与训练 一、定语从句概念 定语从句（attributive clause），顾名思义，就是一个句子作定语从属 于主句。定语一般是由形容词充当，所以定语从句又称作形容词从句。另外， 定语从句是由关系代词或关系副词引导的，故又称作关系从句。 定语从句一般放在它所修饰的名词或代词之后，这种名词或代词被称作先 行词。请看示例： The woman who lives next door is a teacher. 先行词定语从句 在所有的从句中，算定语从句最难掌握，因为汉语里没有定语从句，汉语 里只有定语，而且总是放在名词之前来修饰名词。 二、关系代词引导的定语从句 关系代词代替前面的先行词，并且在定语从句中充当句子成分，可以作主语、宾语、定语等。常见的关系代词有：who, that, which。它们的主格、宾格和所有格如下表所示： 先行词主格宾格所有格 人 who whom whose 物 which which whose of which 人、物 that that — （一）关系代词who, whom和 whose的用法 who代替人，是主格，在定语从句中作主语。例如： An architect is a person who designs buildings. 建筑师是设计房屋的人。 I will never forget the teacher who taught us chemistry in the first
主语从句详解及练习-附答案
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英语语法英语从句完全汇总
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最新高中英语语法定语从句总复习
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定语从句用法总结
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