英语从句的定义
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.
What you need is more practice.
The question is whether it is worth doing.
We must find out who did all this.
We expresd the hope that he would come to China again.
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. 例如:
It isn’t likely that I should accept such an offer as that.
jinxedIt is still a question when we shall have our sports meet.
3. 形式宾语
I think it best that you should stay here.
She took it for granted that he would receive it with shame.
4. 由名词性关系代词whatever, whoever, whichever 等引起的宾语从句
He will do whatever the teacher asks him to do.
I’ll take whoever wants to go with me to the theatre.
Take whichever you like best.
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 becau.
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, who, that, when, where, why and which. 在非限制定语从句中, 只可用which, who, who, where , when., 如果指代前面整个句子, 多用which.
The dog that/which was lost has been found.
Tho who are in favor of the proposal are expected to discuss it in detail after the meeting.
There are many organizations who purpo is to help the homeless.
The days when we had to rely on wool, cotton or silk for our clothes have now pasd.
Air moves from places where the pressure was high to places where the pressure is low.
This is the reason why he refud to help us.
He was born in 1976, when an earthquake struck the country.
They turned a blind eye to the suffering of the people, which enraged all of us.
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.
The only thing that matters to the children is how soon they can have their holiday.
The are the very points that puzzle me.
Is there anything that bothers you?
This is the best film that was ever produced by the company.
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.
Such people as you describe are rare nowadays.
The boy was run over by a motor-car, as often happened in pre-liberation Shanghai.
As is often the ca, the girl forgot to bring her dictionary.
We are oppod to such
ideas as are not bad upon objective facts.
4. 介词+which/whom/who从句
The driver is the man from who room she had stolen the gold watch.
Language is a tool by means of which people communicate ideas with each other.
Jane spent all evening talking about her latest book, of which none of us had ever heard.
Water dissolves a part of nearly everything _______ it comes in contact.
a. where b. that c with which d as soon as
5. 代/名+介词+which 从句
he is needing a book, the name of which I don't know.
In factories and in our daily life, there are many waste materials, all of which can he turned into uful things under certain condition.
To make an objective test the teacher writes a ries of questions, each of which has only one correct answer.
6. 同位语从句和定语从句
The news that he has been admitted by Harvard University is very pleasing.
The news the you told me was really exciting.
7. 难句:
He is one of the men who were chon to reprent the group.
He is the only one of tho boys who is willing to take on another assignment.
I shall never forget the day when we first met.
I remember the morning when he first came to school.
I shall never forget the days which I spent in the countryside.
The room where he lived is kept in good repair.
Alva found a place in the cellar ______ he us as his first laboratory.
A where B which C what D in which
The way in which/that you answered the questions was admirable.
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.
As you look at yourlf in a mirror, you’ll en an identical image of yourlf.
It is a long time before it is possible to test the medicine on human patients.
It was not until…that
Not until…did he…
Not until I received the letter, did I know he had gone to America.
It was not until….
When I got to the airport, I suddenly remembered that I had left the ticket behind.
I was about to leave, when something occurred which attracted my attention.
Whenever we have difficulty, he’ll come to help us.
2) no sooner…than, hardly(scarcely, barely)…when: 刚做…就….
No sooner had I opened the door than the telephone rang.
She had scarcely news when she fainted.
3) 还有 immediately, directly, instantly, the moment, the minute, the instant, the cond, every time etc
I’ll tell you about it the moment you come.
I got in touch with him immediately I received his letter.
2. 地点状语从句: 一般用where or wherever 引导
I will stand where I can e the parade clearly.
Wherever they went, they were warmly welcome.
3. 条件状语从句：真实条件从句:if, unless, so long as, provided that, supposing th
at, on condition that, in the event that, in ca that etc
I will not go to her party if she doesn’t invite me.
I will not go to her party unless she invites me.
4. 原因状语从句: 从属连词有becau, as ,since, for, now, that, in that, eing that, considering that(鉴于，由于)
gre是什么
As the school regulations are written quite clearly, there is nothing more to be explained.
Considering that the sweater was hard made, it was not expensive.
Seeing that they are inexperienced, they are doing quite a good job.
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.
He will not give up smoking even though the doctor advis him to.
Whatever the conquence may be, I will be on your side.
However hard she tried to explain, nobody trusted her.
authority
It has been the same result, whichever way you do it.
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.
Simple as the question may em, it is not at all common in nature.
Cold as it is, the children play outdoors.
Much as I respect him, I can’t agree with him.
Object as you may, I will go on with my plan.
3) whether…or，不管…或…
whether you be a student or a teacher, you are required to obey the regulations of the school.
6. 结果状语从句: so that, so…that, such…that
He is so humorous that we’ll never forget him.
She is such a nice girl that everybody likes to make friends with her.
fbi warning是什么意思7. 目的状语从句: so that, in order that, for fear that, lest, in ca
I checked all the results time and again for fear that there should be any mistakes.
Telephone us in advance in order that we might make the necessary arragements.
三年级下册英语教学计划
8. 方式状语从句: as, just as, as if: 如同…一样
we should do the exerci as our teacher tells us.
You talk as if you had really been there.
It looks as if it is going to rain.
Nails protect the ends of human fingers and toes as claw protect the toes of most animals.
The young man operates the machine as the old worker has taught him.
9. 比较状语从句:
1) as…as, not so/as…as
the film was not so exciting as we expected.
The history of nursing is as old as the history of man.
plea try again later什么意思She likes them almost as much as Paul does.
2) 比较级+than, so much/a lot more than
She looks much younger than she is.
The univer is a lot more complicated than you think.
3) no more…than, not more…than, less…than
Jack is no more frightened than Mike is.
Jack is not more frightened than Mike is. 不像马克那么害怕
Tom is no more rich than Black
3) the more…the more
The farther north you go, the verer the winter is.
The more I e of him, the less I like him.
区分英语从句的“小窍门”
根据英语从句在句子中的句法作用，从句可分为三类：名词性从句，形容词性从句和副词性从句。通过对引导从句的各种引导词进行观察，我们不难发现，
有的从句可以直接从引导词的形式和意义上来区分。如：Though the old man is over venty, he still es well and hears well. 我们一读此句，就可以认定，由Though引导的从句是一个让步状语从句。因为though只能引导让步状语从句，不能引导其它从句，但是有些引导词却能引导多种从句。如引导
cet 4词when：既可以引导时间状语从句又可以引导定语从句，还可以引导名词性从句。此外，象that，where等，三类从句均可引导；who既可引导定语从句，又可引导名词性从句；so that 即可引导目的状语从句，又可引导结果状语从句……因此，这些形同义不同的引导词给我们理解、掌握、运用各种从句带来了很大困难。另外，搞不清楚从句在句子中所起的作用，就不能正确理解原文。那么，怎样正确区分各种形同义不同的引导词引导的从句呢？
1、 分析句子结构以区虽从句的种类
遇到一个复合句，首先要分析其句子结构，看从句在整个句子中起什么作用，那么它就是什么从句。
2、 分析引导词的句法作用以区别从句的种类
that这个词即是引导同位语从句，又可引导定语从句，这种两种从句从形式和结构上看特别相似，如何区分呢？
区分that引导的是同位语从句还是定语从句的方法是，看that在从句中是否充当句子成分，若that在从句中不充当任何成分，则为同位语从句；若that在从句中充当主语或宾语，则为定语从句。
3、 根据被修饰词来判断从句的种类
定语从句常常修饰一些具有实际意义的名词，如：the film；the student；the book；a hou等等。而同位语从句常常修饰一些表示抽象概念的名词，如fact、idea、promi、truth等，用来说明这些名词所表示的具体内容。状语从句在句子中常用来修饰谓语动词。
4、 根据从句前词的词性来判断从句的种类
宾语从句分两种：动词的宾语从句、介词的宾语从句。宾语从句前肯定是动词或介词。定语从句是用来修饰名词或代词的，所以其前一定是一个名词或代词。
5、 根据上下文意义和结构形式上区分从句的种类
如so that即可引导目的状语从句，又可引导结果状语从句，如何区分呢？主要从以下两点来区分。
①根据上下文意义判断。“以便……”表示目的，是目的状语从句，“以致于……”，“结果……”表示结果，是结果状语从句。
②从结构形式上来分辨。so that前有逗号，为结果状语从句，反之，则为目的状语从句。有时，so that前无逗号，这里要看从句中有无can、could、may、might、will、would、should 等情态动词，如果有，则多是目的状语从句，若没有，则多是结果状语从句。
顺序一般是主语，谓语，宾语，宾语补足语
网页培训学校，而表语，定语，状语的位置要根据情况而定。
1、主语
主语表示句子主要说明的人或事物，一般由名词，代词，数词，不定式等充当。
Helikeswatch'ingTV.他喜欢看电视。
2、谓语
谓语说明主语的动作，状态或特征。
一般可分为两类：
1)，简单谓语
由动词(或短语动词)构成。 涸辙之鲋的故事
可以有不同的时态，语态和语气。
Westud'yforthepeo'ple.我们为人民学习。
2)，复合谓语：情态动词＋不定式
Icanspeakalit'tleEng'lish.我可以说一点英语。
3、表语
表语是谓语的一部分，它位于系动词如be之后，说明主语身份，特征，属性或状态。一般由名词，代词，形容词，副词，不定式，介词短语等充当。
Mysis'terisanur.我姐姐是护士。
4、宾语
宾语表示动作行为的对象，跟在及物动词之后，能作宾语的有名词，代词，数词，动词不定式等。
WelikeEng'lish.我们喜欢英语。
有些及物动词可以带两个宾语，往往一个指人，一个指物，指人的叫间接宾语，指物的叫直接宾语。
Hegavemesom'eink.他给了我一点墨水。
有些及物动词的宾语后面还需要有一个补足语，意思才完整，宾语和它的补足语构成复合宾语。如：
Wemakehimourmon'itor.我们选他当班长。
5、定语
灯油在句中修饰名词或代词的成分叫定语。
用作定语的主要是形容词，代词，数词，名词，副词，动词不定式，介词短语等。形容词，代词，数词，名词等作定语时，通常放在被修饰的词前面。
Heisanewstu'dent.他是个新生。
但副词，动词不定式，介词短语等作定语时，则放在被修饰的词之后。
Thebikeintheroomismine.房间里的自行车是我的。
6、状语
修饰动词，形容词，副词以及全句的句子成分，叫做状语。用作状语的通常是副词，介词短语，不定式和从句等。状语一般放在被修饰的词之后或放在句尾。副词作状语时可放在被修饰的词前或句首。
HelivesinLon'don.他住在伦敦。
7.补语
用来说明宾语或主语所处的状态或正在进行的动作，因为英语中有些动词加宾语后意思仍然不完整，如：make(使...),ask(请)等等。如果 我们说：我们使我们的祖国。这不是一句完整的话。应该说：我们使我们的祖国更美丽。这是的“美丽的（beautiful)”为形容词做补语，说明祖国的状 态。英语句子为:We will make our country more beautiful.作补语的词或词组为：形容词，副词，名词，不定式，ing形式，数词等。
8.宾补
就是宾语补足语，就是补充说明宾语的
例：I know you are student good at maths
在这个句子中，good at maths 就是补语。
宾语补语也可以是句子，所以这个句子也可以是：
I know you are student who is good at maths
还可以是-ing 形
式
I e you crossing the street
简单说就是补充和说明主语和宾语的成分.因此，就出现了主语补足语和宾语补足语.上面两位举的例子都不错.只是热雪冰冷的宾补的句子例子不是很恰 当哦.他的例子是定语从句 啊 还有 主语补足语可以是表语 例如:Tom is a student.student是对Tom的解释与说明. 另外,Tom was en playing on the playground.这个句子中playing是对Tom的解释说明 是主补
