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在初中英语中，重要有三大从句，即宾语从句、定语从句、状语从句（包含时候、前提、成果、目标、缘由、妥协、地址、方法等）。
今天给大师收拾了：初中英语语法三大从句总结。
宾语从句
1、界说
在句子中起宾语感化的从句叫做宾语从句。
2、毗连词
that: I think that you can pass the exam.
Whether/if: I don’t know what the word means.
“Wh”: I don’t know what the word means.
I don’t know where he found the book.
只用whether的环境：
1. 与or not连用：
I don’t know whether it’s raining or not.
2. 与动词不定式连用：
He doesn’t know whether to accept the invitation.
3. 毗连词前有介词时：
It depends on whether he is coming.
3、时态
1. 主句是一般如今时态，从句按照现实环境而定(各类时态都可)
She wants to know what he has done for the exam.
2.主句是一般曩昔时态，从句用响应的曩昔的时态。
1）She said that she was a student.
2）She said that she would fly to Japan in a week.
3）She said that she had finished her homework already.
3. 若是宾语从句说的是客观真谛、天然征象或事及时，这时候宾语从句要用一般如今时态。
The teacher said that the earth goes round the sun.
定语从句
1、界说
在复合句中润饰名词、代词的从句叫定语从句。
2、先行词
先行词指人 who /that
先行词指物 which/ that
定语从句一般紧跟被润饰的名词或代词（即先行词）后
3、瓜葛代词
瓜葛代词取代先行词在句子中担任成份，以是从句中不成再呈现其他取代先行词的代词
4、翻译法子 “…. 的”
Whom:
先行词指人，则取代先行词在定语从句中充任宾语（包含介词的宾语）, 与who的区分是若是前面带介词则必需用whom
1. This is the teacher whom\who we like best.
2. I don’t like the boy to whom you are talking.
Whose : 指人或物，作定语，暗示 “…的”
eg: Harry is the boy whose mother is our math teacher.
瓜葛代词只能 that 的特别环境：
1.先行词前有序数词润饰时：
This is the first gift that my parents bought me.
2.先行词前有形容词最高档润饰时：
This is the most exciting film that I have ever seen.
3. 先行词是不定代词something, anything等时.
e.g. Is there anything that you want in this shop
4. 先行词是人和物时, 用that.
e.g. He talked about some writers and books that were unknown to us all.
5. 先行词被all , little , the only , the very(就是，恰是), the last 等词润饰时,只能用that
e.g. This is the last place that I want to visit.
6. 特别疑难句以who 或which 开首，只能用that指导.
Who is the girl that is making a speech on the platform?
当瓜葛代词前利用介词时：
物+介词+which ; 人+ 介词 + whom
当瓜葛代词前利用介词时：
e.g. 1. This is the train by which we 
went to Beijing.
2. This is the teacher to whom my mother is talking.
状语从句
1、界说
在复合句中由从句暗示的状语称作状语从句，它可以用来润饰谓语（包含非谓语动词）、定语或状语，或是全部句子。
2、状语从句一般分为八大类
时候状语从句 地址状语从句
缘由状语从句 目标状语从句
成果状语从句 前提状语从句
方法状语从句 妥协状语从句
1. 时候状语从句
When —当……时辰, 凡是指某一特定的时候点，主句与从句的动作同时产生。
When I opened the window, I saw him come up.
When — 正在……的时辰，忽然…。凡是主句是举行时或 be about to 时，在翻译的时辰，when 可以译成没想到或忽然。
I was walking along the street , when I met him.
When 当从句是举行时，主句是一般时，常常暗示不满。
Someone knocked at the door when I was having breakfast.
When=after
When the children had gone to bed, she began to prepare her lessons.
While —在……时代，常常指一段时候。
While we were inAmerica, we saw him twice.
While —暗示一种不满情感，意思是这边在干某种首要的事，而另外一边在享受等。
We are cleaning the classroom while they are playing the football.
As — 一边……一边, 
跟着
She was doing her homework as she was listening to the music.
As — 当……时，指一个动作紧接着一个动作产生，从句通经常使用举行时。
As I was going out, it began to rain.
The moment — 一……就…… =as soon as , i妹妹ediately,
Did you remember to give Mary the money you owed her?
Yes, I gave her the moment I saw her.
Not… until — 直到……才
He didn’t leave the office until he finished the work.
Before — 在……以前
The passengers should arrive at the airport an hour before the flight departs.
After — 在…… 以后
The customer left the ticket counter after he had a quarrel with the ticket agent.
Since —自从……, 凡是主句用如今完成时
I have never been there again since I graduated from the university.
It is just a week since we arrived here.
As soon as — 一……就……
Jack went to school as soon as he got well.
No sooner than — 一……就……
no sooner… than… 用于句首请求倒装
Hardly …when…
Scarcely …when…
No sooner had he arrived than he went away again.
Once — 一但……就……
Once you see him, you will never forget him.
Every time, each time 每次whenever 每当
Each time he came to town, he would visit our school.
2. 前提状语从句
指导状语从句的毗连词有：
If若是, unless除非, as long as只要, As (so) far as — 据……所知，in case万一, provided that假设, on condition that如果，以…为前提
If —若是
If you don’t hurry up, you will miss the plane.
Unless — 若是不, 除非=if not
We can’t get there on time unless we book the earliest flight
As long as — 只要
We will succeed as long as we keep on trying.
As (so) far as — 据……所知
As far as I know, he speaks English very well.
In case — 借使, 若是
The plane cannot take off in case it rains.
Provided that 若是,有时省略 that
The plane will be in good condition provided that it is taken care of carefully.
On condition that — 前提是…
He said that he would come to the meeting on condition that no one asked him to speak.
注:主从句的动作产生在未来时，则主句用未来时, 从句用一般如今时。
If he arrives tomorrow, I will be waiting for him at the airport.
3. 地址状语从句
地址状语从句只有两个连词: Where, wherever
Where — 在……处所
Where there is a will, there is a way.
Wherever — 不管哪里
Wherever you are, I will be right there waiting for you.
4. 缘由状语从句
because, as, since, now that, 和considering that, seeing that 这六个连词都用于暗示暗示缘由, 但在语气上一个比一个弱.
Because — 由于,凡是从句放在主句后.
Mr Smith was very upset because he couldn’t find his luggage.
As — 由于, 凡是放在句首
As he is honest and modest, all his friends like him.
Since —既然 因语气较弱, 常译为既然(家喻户晓的缘由)
Since everybody has come, we can set off.
Now that — 既然
Now that you are here, you can join us.
considering that — 顾及到
Considering that they are just beginners, they are doing quite a good job.
seeing that — 因为
Seeing (that) quite a few people were absent, we decided to put the meeting off.
5. 成果状语从句
指导成果状语从句的连词有：that, so that, so…that…
such…that So… that — 太……以致于 so 后面利用形容词或副词, 有时省略so只用that
Boeing 747 is so large that people like to call it jet bomb喷气炸弹.
So that — 因此，以便，为了 有时so 可以省去
Speak louder please so that the people at the back can hear you.
Such …that… —太……以致于 用法与so…that不异，但such 后面利用名词。
The foreign visitor was such a fast speaker that nobody could understand him.
6. 目标状语从句
指导目标状语从句的重要连词有: that, so that, in order that, for fear that, lest
(So) that — 以便, 从句中经常利用一些情态动词，如：can, could, may, might, should等
Let’s take the front seats (so) that we may see more clearly.
in order that — 为了, 与so that 不异从句中经常利用一些情态动词，如：can, could, may, might, should等
School was closed early in order that the children might go home ahead of the storm.
for fear that — 恐怕; 为了避免(某事产生)
He took the name down for fear that he should forget it.
in case — 万一
You should bring a dictionary in case you need it.
Lest — 以防万一
The man decided to tell his boss the fact lest he would be angry with him.
7. 妥协状语从句
指导妥协状语从句的连词有：Although, though, as, even if, even though, no matter, however, whatever, while, whether.
Although, though —固然 although 和though 可以交换，但although 常放在句首。Though可以用于倒装。
Although it was raining, the plane managed to take off.
Though he did his best, he didn’t succeed.
As — 虽然 as 指导妥协状语从句时，句子凡是倒装。可与though 交换。
Busy as he is, he never misses a football match.
Even if /even though —即便
Even if you don’t like your boss, you should do your work.
However — 非论， however 指导妥协状语从句时，句子凡是倒装
He couldn’t get there on time however fast he drove.
No matter (what, when, where, how) —不管（甚么，什么时候，何地，怎么）
He wouldn’t forgive me no matter how hard I begged him.
Whatever — 无论
Whatever other people may say, she won’t change her mind.
While —虽然
While I have sympathy for you, I can’t help you.
Whether —无论，常与or not 连用
Whether he is good or not, the company decided to send him abroad.
8. 方法状语从句
方法状语从句常由: as, as if, as though
as —与…… 同样
Do in Rome as the Romans do.
as if, as though — 恍如, 由as if或 as though指导的从句中可用虚拟语气
She stood at the door as if (=as though) she were waiting for someone.返回搜狐，检察更多
