1.英语语法及从句知识

从句分名词性从句 定语从句 状语从句

状语从句比较好区分 在复合句中做状语的从句就是状语从句 有9种 但是只要记住引导词（when where as……）就很容易和名词性从句、定语从句区分开

名词性从句相当于名词，可作主句的主语、表语、宾语和同位语，因此有4种。引导词虽多种多样，但只要记住从句做以上4个成分，在从句的前面或后面一定有动词或Be动词就可以区分出来。

定语从句一定位于先行词（名词或代词）后面，起修饰作用

可能出现when where时不清楚是状语从句还是定语从句，只要记住定语从句前一定有个名词或代词，状语从句没有，而且通常用逗号与主句隔开

同位语从句和定语从句很难区分，同位语从句是对名词加以补充说明，定语从句对名词加以限制，但在做题是没有影响，通常fact,news,idea,truth,hope,problem,information,promise,suggestion后接的是同位语从句

2.英语中从句的语法大全

英语中六大从句用法总结1.主语从句1）主语从句可直接位于主语的位置，如果从句较长，谓语又较短，可用it作形式主语，而将从句放在句末。

常见的句型有：*It is a fact\a pity\a question\good news that。*It seems\appears\happened\has turned out that。

*It is clear\important\likely\possible that。*It is said\reported\estimated\has been proved that。

It is said that comic books create a connection between people of the same generation.It seems that the performance is very useful.2)what引导的主语从句表示“。的东西时”，一般不用it作形式主语。

What we lack is experience.3)what,who,when,why,whether等词含有各自的疑问意义，但它们引导的主语从句，都用陈述语序。How the plan is to be carried out should be discussed again.I did know why I felt like crying.2.宾语从句1）宾语从句可位于及物动词、介词和某些形容词后。

连词that常可省略。介词后一般接疑问词引导的宾语从句。

in that（因为），except that（除了），but that（只是）已构成固定搭配，其他介词后一般不接that引导的宾语从句。*I promised that I would change the situation.*All this is different from what American young people would say about friendship.*He is certain that watching so much television is not good for children.*This article is well-written except that it is a bit too long.2）宾语从句后如有宾补，要用形式宾语it来代替，而把宾语从句移至宾补之后。

He has made it clear that he would not change his mind.3）在think,believe,suppose,expect等动词后的宾语从句中，如果谓语是否定的，一般将否定词移至主句谓语上，宾语从句则变成肯定形式。He didn't think that the money was well spent.3.表语从句 表语从句出现在结构为“主语+系动词+表语从句”的句子中。

表语从句除可用that,what,when,why,whether,how等引导外，还可由because,as if(though)等引导。that常可省略。

如主句主语为reason，只能用that引导表语从句，不可用because.Perhaps the most important thing to remember is that there is no one common type of life in America.The reason why so many people died there is that there were not enough food supplies.It looks as if successful international cultural communication will make the world smaller.4.同位语从句 同位语从句用于对前面出现的名词作进一步说明，一般用连词that引导，由于先行名词的意义不同，也可用whether,who,when,where,what,why,how等引导。常见的先行名词有fact,idea,belief,news,hope,conclusion,evidence,suggestion,order,problem,report,decision.有时由于谓语较短，将同位语从句位于谓语之后。

She finally made the decision that she would join the fashion show.I had no idea how many books I could borrow at a time.The news came that their team had won the championship.5.定语从句 定语从句所修饰的先行词可以是名词或代词，也可以是一个句子。定语从句通常位于先行词之后，由关系代词或关系副词引导。

*限制性定语从句 限制性定语从句修饰先行词，对先行词起修饰作用，紧接先行词之后，无逗号，若省去，原句意思不完整。引导定语从句的关系代词有who,whom,whose,which,that等。

who,whom,whose用于指人，whose有时也可指物，相当于of which;which用于指物；that既可指人也可指物，但只用于限制性定语从句中。关系代词除了引导定语从句，替代先行词外，还在从句中担任主语、宾语、定语等。

The computers and cables which make up the Internet are owned by people and organizations.Those who live alone or who are sick may have trouble in getting close to other people.The girl whose parents died in an accident is living with her grandmother.1）当先行词是all,anything,everything,something,nothing等不定代词或先行词前有first,last,any,few,much,some,no,only以及形容词最高级修饰时，只能用关系代词that引导从句。That is all that I've heard from him.He's the first person that I'm going to interview this afternoon.2）关系代词的省略 在从句中作宾语的关系代词常可省略。

关系代词紧跟介词，作介词宾语时不可用that，只可用which或whom引导从句，并且不可省略，但当介词位于宾语从句句末时，作为介词宾语的关系代词仍可用that，也可省略。This is one of those things with which we have to put up.This is one of those things (which\that) we have to put up with.3）引导定语从句的关系副词有when,where,why等。

关系副词在从句中作状语，意义上相当于一个“介词+which”的结构。Even in comic books where(=in which) there are no words,the stories are fully expressed through the drawings.No one knows the reason why(=for which) he was so angry that day.5.定语从句*非限制性定语从句 非限制性定语从句既可修饰先行词，也可修饰整个主句，起补充说明作用，与主句之间有逗号隔开，若省去，原句意思不受影响。

不可用that引导非限制性定语从句。关系词不可省略。

Every object has a gravitational pull,which is 。

3.英语中从句有什么什么重点

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

各种从句：

I. 定语从句。

1） 先行词是名词。

2） 定语从句跟在名词后。是修饰名词的。

3） 与中文顺序相反。

4） 定语从句的组成是：连词+主+谓+宾。

5） 连词在从句里可以作主语、宾语、状语等。

6） 当先行词的名词表示人时，后面的连词用who+v/(whom)+s+v/whose+N+s+v.

当先行词的名词表示物时，后面的连词用which/that ,whose.

7） 连词前可以有介词。

8） 不许用what

1. All the people who work on a newspaper must be able to work fast.

2. Corn is a useful plant which can be eaten by both people and animals.

3. I have a friend whose cousin is a tennis player.

4. The boy lived in a part of town where there were no schools.

5. During the hurricane, one of the tree branches broke the bed in which

the girl had been sleeping.

II. 名词从句。起名词作用。=名词

1. 主语从句。

1） 在主语位置上。

2） 组成：连词+主语+谓语+宾语

3） 连词不可省

4） 不许用if

When we'll go to school is still a question.

2. 宾语从句。

1） 在宾语位置上。在动词后。

2） 组成：（连词）+主语+谓语+宾语

3）连词可省

The doctor asked the patient what he had had for lunch.

3. 表语从句。

1） 在表语位置上。在系/be动词后。

2） 组成：连词+主语+谓语+宾语

3）连词不可省

4）不许用if

He lost his key. The reason is that he was too careless.

4. 同位语从句。

1） 在名词后。说明名词的内容。

2） 组成：名词+[连词+主语+谓语+宾语]

3）连词不可省

4） 只用that, when, where, why。不用which.

5） 只有一些词才用。请看Unit17.

The news that our team won the game made us happy

4.英语语法中从句有几种,要详细的

英语中六大从句用法总结 1.主语从句 1）主语从句可直接位于主语的位置，如果从句较长，谓语又较短，可用it作形式主语，而将从句放在句末。

常见的句型有： *It is a fact\a pity\a question\good news that。 *It seems\appears\happened\has turned out that。

*It is clear\important\likely\possible that。 *It is said\reported\estimated\has been proved that。

It is said that comic books create a connection between people of the same generation. It seems that the performance is very useful. 2)what引导的主语从句表示“。的东西时”，一般不用it作形式主语。

What we lack is experience. 3)what,who,when,why,whether等词含有各自的疑问意义，但它们引导的主语从句，都用陈述语序。 How the plan is to be carried out should be discussed again. I did know why I felt like crying. 2.宾语从句 1）宾语从句可位于及物动词、介词和某些形容词后。

连词that常可省略。介词后一般接疑问词引导的宾语从句。

in that（因为），except that（除了），but that（只是）已构成固定搭配，其他介词后一般不接that引导的宾语从句。 *I promised that I would change the situation. *All this is different from what American young people would say about friendship. *He is certain that watching so much television is not good for children. *This article is well-written except that it is a bit too long. 2）宾语从句后如有宾补，要用形式宾语it来代替，而把宾语从句移至宾补之后。

He has made it clear that he would not change his mind. 3）在think,believe,suppose,expect等动词后的宾语从句中，如果谓语是否定的，一般将否定词移至主句谓语上，宾语从句则变成肯定形式。 He didn't think that the money was well spent. 3.表语从句 表语从句出现在结构为“主语+系动词+表语从句”的句子中。

表语从句除可用that,what,when,why,whether,how等引导外，还可由because,as if(though)等引导。that常可省略。

如主句主语为reason，只能用that引导表语从句，不可用because. Perhaps the most important thing to remember is that there is no one common type of life in America. The reason why so many people died there is that there were not enough food supplies. It looks as if successful international cultural communication will make the world smaller. 4.同位语从句 同位语从句用于对前面出现的名词作进一步说明，一般用连词that引导，由于先行名词的意义不同，也可用whether,who,when,where,what,why,how等引导。常见的先行名词有fact,idea,belief,news,hope,conclusion,evidence,suggestion,order,problem,report,decision.有时由于谓语较短，将同位语从句位于谓语之后。

She finally made the decision that she would join the fashion show. I had no idea how many books I could borrow at a time. The news came that their team had won the championship. 5.定语从句 定语从句所修饰的先行词可以是名词或代词，也可以是一个句子。定语从句通常位于先行词之后，由关系代词或关系副词引导。

*限制性定语从句 限制性定语从句修饰先行词，对先行词起修饰作用，紧接先行词之后，无逗号，若省去，原句意思不完整。引导定语从句的关系代词有who,whom,whose,which,that等。

who,whom,whose用于指人，whose有时也可指物，相当于of which;which用于指物；that既可指人也可指物，但只用于限制性定语从句中。关系代词除了引导定语从句，替代先行词外，还在从句中担任主语、宾语、定语等。

The computers and cables which make up the Internet are owned by people and organizations. Those who live alone or who are sick may have trouble in getting close to other people. The girl whose parents died in an accident is living with her grandmother. 1）当先行词是all,anything,everything,something,nothing等不定代词或先行词前有first,last,any,few,much,some,no,only以及形容词最高级修饰时，只能用关系代词that引导从句。 That is all that I've heard from him. He's the first person that I'm going to interview this afternoon. 2）关系代词的省略 在从句中作宾语的关系代词常可省略。

关系代词紧跟介词，作介词宾语时不可用that，只可用which或whom引导从句，并且不可省略，但当介词位于宾语从句句末时，作为介词宾语的关系代词仍可用that，也可省略。 This is one of those things with which we have to put up. This is one of those things (which\that) we have to put up with. 3）引导定语从句的关系副词有when,where,why等。

关系副词在从句中作状语，意义上相当于一个“介词+which”的结构。 Even in comic books where(=in which) there are no words,the stories are fully expressed through the drawings. No one knows the reason why(=for which) he was so angry that day. 5.定语从句 *非限制性定语从句 非限制性定语从句既可修饰先行词，也可修饰整个主句，起补充说明作用，与主句之间有逗号隔开，若省去，原句意思不受影响。

不可用that引导非限制性定语从句。关系词不可省略。

Every object has a 。

5.初中英语语法知识总结：从句

一 名词性从句： 1. 主要包括主语从句，宾语从句，表语从句和同位语从句. 一般由that 引起，也可由who, what, when, why, which, whom, whether, how 引起. 2. 主语从句很多情况下都可以放到句子后面，而用代词it作形式上的主语. ： 3. 形式宾语 4. 由名词性关系代词whatever, whoever, whichever 等引起的宾语从句 5. whether and if 都能引导从句， 但用法有所不同. 当主语从句直接位于句首时，应用whether，而不用if. Whether 后能直接or not， 但if 不能. Whether he will come or not is not known. 6. 在名词reason后的表语从句必须用that引导， 不可误用 because. The reason why he is often late for class is that he has the bad habit of getting up late in the morning. 二： 定语从句 1. 引导定语从句的关系词有who, whom, whose, that, when, where, why and which. 在非限制定语从句中， 只可用which, who, whose, where , when.， 如果指代前面整个句子， 多用which. 2. 当引导定语从句的先行词前有all, any, no, little, much, very first 等词， 或先行词前为形容词最高级所修饰时，或先行词为all, anything, nothing, something, everything 时，从句的引导词只能用that. 3. as 可做引导词引导定语从句， 多和such, the same 连用. As 引导的定语从句也可修饰整个句子， 既可放在先行词后，也可放在句子开头. 4. 介词+which/whom/whose从句 5. 代/名+介词+which 从句 6. 同位语从句和定语从句 三 状语从句： 修饰主句中的动词， 形容词和副词， 通常有从属连词引导， 按其意义和作用可分为时间， 地点， 条件， 原因， 让步， 目的， 结果， 方式， 比较.等 1. 时间状语从句： 1） 常见连词有 after, as, before, once, since, till, (not)until, when, whenever(no matter when), while, as long as, as soon as etc. 2) no sooner…than, hardly(scarcely, barely)…when： 刚做…就…. 3） 还有 immediately, directly, instantly, the moment, the minute, the instant, the second, every time etc 2. 地点状语从句： 一般用where or wherever 引导 3. 条件状语从句：真实条件从句：if, unless, so long as, provided that, supposing that, on condition that, in the event that, in case that etc 4. 原因状语从句： 从属连词有because, as ,since, for, now, that, in that, seeing that, considering that（鉴于，由于） 5. 让步状语从句： 1): even if, though, even though, while（尽管） no matter what/how/which, however, whatever, whichever, however etc. 2） 由as 引起的让步从句， 语气较强烈，被强调的词须放在句首. 3) whether…or，不管…或… 6. 结果状语从句： so that, so…that, such…that 7. 目的状语从句： so that, in order that, for fear that, lest, in case 8. 方式状语从句： as, just as, as if： 如同…一样 9. 比较状语从句： 1) as…as, not so/as…as 2） 比较级+than, so much/a lot more than 3) no more…than, not more…than, less…than 4) the more…the more。

6.英语 各种从句解析

叫什么从句 就看该从句充当什么成分

主语从句就是在句中充当主语的从句

what he did made me angry 他的所作所为让我恼火

宾语从句就是在句中充当宾语的从句

He said that he would not go to school tomorrow 他说他明天不去上学

定语从句就是在句中充当宾语的从句

The boy whom i talked to is my cousin 跟我说话的那个男孩儿是我表弟

表语从句就是在句中充当表语的从句

The house is not what it used to be 那所房子 不是它原来的那个样子了

状语从句就是在句中充当状语的从句 有原因 时间 让步等状语从句

原因状语从句

She was late for school because she overslept 因为睡过头了 所以她迟到了

时间状语从句 when I was 5 years old,my parents divorced 当我五岁的时候 父母离异了

让步状语从句

Although I liked the watch very much, I donated it to the children in the rural region

尽管我非常喜欢这只手表 但是我还是把它捐给了山区的孩子

7.高中英语名词性从句和定语从句的语法总结（详细一点）

名词性从句是由if, whether, that 和各种疑问词充当连接词所引导的从句，其功同名词一样.一.主语从句 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾. 1. It 作形式主语和it引导强调句的比较 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化.而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that.被强调部分指人是也可用who/whom.2. 用it 作形式主语的结构 （1） It is +名词+从句 （2） it is +形容词+从句 （3） it is +不及物动词+从句 （4） it +过去分词+从句 3. 主语从句不可位于句首的五种情况 （1） if 引导的主语从句不可居于复合句句首. （2） It is said , (reported) …结构中的主语从句不可提前. （3） It happens…， It occurs… 结构中的主语从句不可提前. （4） It doesn't matter how/whether …结构中的主语从句不可提前. （5） 含主语从句的复合句是疑问句时，主语从句不可提前. 4. What 与that 在引导主语从句时的区别 What 引导主语从句时在句时在从句中充当句子成分，如主语.宾语.表语，而that 则不然. 定语从句也称为关系从句或形容词性从句，由关系代词（who, whom, whose, which, that）或关系副词（as, when, where, why）等引导.关系词除了起引导作用外，还在从句中指代前面的先行词，并在从句中担任一定的成分. 一、限定性定语从句和非限定性定语从句定语从句就其与先行词的关系而言，可分为限定性定语从句和非限定性定语从句.限定性定语从句和先行词之间没有逗号，表示对先行词起修饰限制作用；而非限定性定语从句和先行词之间有逗号分开，是对先行词进行补充说明，相当于并列句.如：He is the man who has strong personality. 他是个个性很强的人.（限定性定语从句）My brother, who works abroad, is coming next week. 我哥哥在国外工作，他下周将回来.（非限定性定语从句）注：1. 非限定性定语从句不能用that来引导，一般用which,as或who（指人）.用which或as引导时，既可以修饰主句的部分内容，也可修饰主句的全部内容.如：He spoke confidently, which impressed me most. (which指代整个主句，在从句中作主语)2. as引导的非限定性定语从句既可以放在主句之前，也可以放在主句之后，但which或who引导的非限定性定语从句不能放在主句之前.如： As we all know, the moon is a satellite of the earth. The large area is covered with thick snow, which affects people's life greatly. 3. 在限定性定语从句中，关系代词作宾语时可以省略；但在非限定性定语从句中，关系代词作宾语时不能省略.如：The film (which) I saw last night is about a young teacher. (which可以省去)She introduced me to her husband, whom I hadn't met before. (whom不能省去)二、通常只用关系代词that，不用 which,who或whom的几种情况1. 当先行词是all, everything, nothing, something, anything, little, much, none, few等时.如：All that you want are here.2. 当先行词被all, no, some, any, every, a few, a little, much, only, very等修饰时.如：There is no person that doesn't make mistakes. 3. 当先行词被序数词或形容词最高级修饰时.如：This is the best film that I have ever seen.4. 当出现两个或两个以上的先行词，并同时兼指人和物时.如： We are talking about the people and countries that we have visited.5. 当主句是以which 或 who 开头的特殊疑问句时.如： Who is the person that is standing over there?6. 当定语从句为there be 句型时，关系代词只能用that，但经常可以省略.如： I know the difference (that) there is between you.7. 当关系代词在从句中作表语时，常用that.如： He does not seem to be the man that he was. 他似乎和过去不一样了.三、as 与其他词连用引导的定语从句as 引导定语从句时，可指人也可指物，通常与the same,such,so等连用，形式为：the same… as,such… as,as …as,so… as.As在定语从句中可作主语、宾语、表语等.如：She knew he felt just the same as she did. 她知道他的感觉与她自己的一样.（as代替事，作宾语）I lend you such books as will interest you. 我借给你使你感兴趣的书.（as代替物，作主语）注：the same… as 和the same… that的用法不同.as引导的定语从句表示其内容与主句所讲的事物“相似”，指同类事物；that引导的定语从句表示其内容与主句所讲的事物是“同一个”，指同一事物.如：This is the same pen as I lost yesterday. 这和我昨天丢的笔一样.（类似的笔）This is the same pen that I lost yesterday. 这支笔就是我昨天丢的那支.（同一支笔）四、“介词+关系代词”引导的定语从句在“介词+which/whom”结构中，介词的选择取决于三种情况：1.定语从句中谓语动词或表语的搭配.如： This is the college in which I am studying. He is the man about whom we are talking.2.先行词与介词的习惯搭配.如： The speed at which the machine operates is shown on the meter. 仪表上显示出这台机器运转的速度.3.当定语从句为最高级时只能用of which； 否则用其。

8.英语有哪几类从句

根据从句语法功能的不同可分为：主语从句、表语从句、宾语从句、同位语从句、定语从句和状语从句6类。

1、主语从句

用作主语的从句叫主语从句。引导主语从句的关联词有从属连词、疑问代词、疑问副词、缩合连接代词、缩合连接副词等。

2、表语从句

用作表语的从句叫做表语从句。引导表语从句的关联词与引导主语从句的关联词很多都一样。

3、宾语从句

在句子中起宾语作用的从句叫做宾语从句.宾语从句分为三类：动词的宾语从句、介词的宾语从句和形容词的宾语从句。

4、同位语从句

是名词性从句（主语从句、表语从句、宾语从句、同位语从句）中的主要从句之一，从句作同位语表示与之同位的名词（短语）的实际内容，它的作用相当于名词，对前面的名词（短语）加以补充说明或进一步解释，相当于一个表语从句，它们之间的关系就是同位关系，即主表关系。

5、定语从句

是由关系代词或关系副词引导的从句，其作用是作定语修饰主句的某个名词性成分，相当于形容词，所以又称为形容词性从句，一般紧跟在它所修饰的先行词后面。

6、状语从句

用作状语的从句叫作状语从句，其关联词是一些从属连词。修饰主句中的动词、形容词和副词，通常由从属连词引导，按其意义和作用可分为时间、地点、条件、原因、让步、目的、结果、方式、比较状语从句等。