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怎样区分各种从句?
英语中总共有六大从句,区分方法,用法,及例子如下：
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 rather like magnetism.
*“介词+which\whom\whose”引导的定语从句
“介词+which\whom\whose”可引导限制性定语从句,也可引导非限制性定语从句,该结构中介词的选择取决于从句谓语动词的固定搭配,或先行词的习惯搭配.
This is the computer on which he spent all his savings
It is written by a person with whom we are all familiar.
*as引导的定语从句
as引导的定语从句主要用于“such...as”及“the same...as”的结构中,代替先行词是人或物的名词.as引导非限制性定语从句时,代替整个主句,从句可位于主句之前、之后或中间.
These are not such problems as can be easily solved.(as代替先行词problems)
As is mentioned above,no single company or group can control what happens on the Internet.(as代替主语)
6.状语从句
*时间状语从句
引导时间状语从句的从属连词和词组有：
1）when,whenever,while,as,after,before,since,till,until,once等.
We have learnt quite a lot about it since we came here.
2)as soon as,hardly(scarcely)...when,no sooner...than,each(every) time,the moment,immediately(that)等.
As soon as I sent an e-mail message,I received positive responses.
The moment he heard the good news,he jumped with joy.
*地点状语从句
引导地点状语从句的连词是where,wherever.
Wherever she went,she took her little daughter with her.
*原因、结果和目的状语从句
1）引导原因状语从句的从属连词有：because,as,since,now(that),seeing that,considering that,in that等.
Considering that he is a freshman,we must say he is doing well.
2)引导结果状语从句的连词有：so...that,such...that
,so that,that,so等.
Mickey Mouse is so attractive that the children are reluctant to leave.
3)引导目的状语从句的连词有：so that,in order that,for fear that,lest等,从句常使用may,might,can,could,would等情态动词.
We got up early this morning so that we could catch the first bus to the railway station.
*条件和让步状语从句
1）引导条件状语从句的连词和词组有if,unless,as(so) long as,on condition that,in case,provided(providing) that,supposing等.
As long as you have the right equipment,you can use a telephone line to transmit computer data.
2)引导让步状语从句的连词和词组有though,although,whether,even though,even if,no matter what(when,how...),whatever(whenever,wherever,however.)等.though,even if等引导状语从句可转换成含有as的部分倒装结构,具有强调意义.其结构为“形容词（副词、动词、名词）+as+主语+谓语”.
No matter what you may say,I would not change my mind.
Young as he is,he is quite experienced in this work.(=though he is young)
Child as he is,he can speak English fluently.(=though he is a child)
*方式状语从句
引导方式状语从句的连词有as,just as,as if,as though等.as if,as though引导的状语从句中,谓语动词常用虚拟语气,表示与事实相反.
The young man made the experiment just as the teacher had taught him.
Everything went on as usual as if nothing had happened.
英语里，什么是从句，怎样区分…
从句是相对于主句而言的，即它是从属于某一个主句，而不能单独作一个句子。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）。
主语从句用作主语，如：：
That
the
earth
is
round
is
true.
地球为圆的是真实的。
宾语从句用作宾语。如：
Do
you
know
where
he
lives?
表语从句用作表语，如：
My
opinion
is
that
you
should
not
go
alone.
我的意见是你不应单独前往。
同位语从句用于解释说明前面的名词。如：
The
fact
that
the
earth
is
round
is
true.
地球是圆的的事实是真实的。（that从句用于解释说明the
fact）
定语从句相当于一个形容词，用于修饰前面的名词。如：
The
student
who
answered
the
question
was
John.
回答问题的学生是John.
状语从句相当于一个副词，如：
When
it
rains,
I
usually
go
to
school
by
bus.
天下雨时，我通常坐公共汽车上学。（时间状语）
英语中如何判断各种从句
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 seventy,he still sees 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
2、 分析引导词的句法作用以区别从句的种类
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 house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、promise、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
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.
英语中如何判断各种从句？
先找出主语，再找出句子主干，而从句只是来修饰限定主句成分的。
比如定语从句就是修饰主句中的名词的，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）主语从句用作主语，宾语从句用作宾语，表语从句用作表语，同位语从句用于解释说明前面的名词，定语从句相当于一个形容词，用于修饰前面的名词，状语从句相当于一个副词。
英语中几大从句的快速辨别方法.
1、一般方法在句子做什么成分：
A、从句在句首后有谓语动词,除去倒装句就只有主语从句的可能性,that句中不作成分,从句属名词性从句；
B、在系动词（be、become等）后,一般是形容词性的表语从句,that仍然不做成分；
C、及物动词vt后一般是宾语从句,不及物动词vi后加介词+宾语从句或者状语从句；
D、名词后会有同位语从句和定语从句,其一、that做不做成分或用不用what,不做用是同位语从句,做不用是定语从句.同时名词性的同位语从句是对之前的名词即先行词的补充说明其内容,而形容词性的定语从句是修饰限定
2、最不易区分的是：
介词后的定语从句与宾语从句,只需要记住如果是介词+宾从那这个从句是介词的对象you should spend time on(介词) who you want to catch up with ；而若果是介词+定从,a、这个介词一定是有从句中的动词而来的you should pay attention to the one with(介词,由后提前的) who you want to catch up；b、或是介词+定从中的关系代词=====关系副词的作用!
英语怎么区分各种从句
1、从句类型：定语从句
辨别方式：a virtue(名词)+that(从属连词)+many Americans value highly and expect from both neighbors and strangers(句子)
译文：然而，表示友好是一种美德，美国人高度重视这种美德，并期望邻居和陌生人都能有这种美德。
2、从句类型：同位语从句
辨别方式：theory(名词)+that(从属连词)+animals have rights ruling out their use in research(句子)
译文：一个这样的事业现在正在寻求终止生物医学的研究，因为有这样一种理论说，动物享有权利禁止它们被用于实验。
定语从句和同位语从句的区分：
既然定语从句和同位语从句在辨认形式上都是"名词+从属连词+句子"，那么应该如何具体区分定语从句和同位语从句呢?这个时候重点在于从句中是否缺少成分：如果从句中缺少成分，那么应该就是定语从句;如果从句中不缺少成分，则是同位语从句。
3、从句类型：宾语从句
辨别方式：think(动词)+从属连词(that)+the kinds of things that women are exposed to tend to be in more of a chronic or repeated nature(句子)
译文：我认为那种妇女面对的事情往往更具有长期性和反复性。
4、从句类型：定语从句
辨别方式：is(动词)+how(从属连词)+(how)friendly,courteous,and helpful most Americans were to them(句子)
译文：由去美国的游客不断地带来的一个报告是大多数美国人对他们是多么的友好、礼貌和热心。
宾语从句和表语从句的区分：
既然宾语从句和表语从句在形式上都是"动词+从属连词+句子"，那么如何进行区分呢?区分宾语从句和表语从句的标志在于从句前的动词是否属于系动词：如果是系动词，那么该从句是表语从句;如果不是系动词，那么该从句则是宾语从句。
5、从句类型：状语从句
辨认方式：(×)+While(从属连词)+traditional"paid"media--such as television commercials and print advertisements--still play a major role(句子)
译文：尽管传统的付费媒体，比如说，电视商业广告和纸质广告，依然占据着重要的作用，但现在的公司开发出许多其他的媒体形式。
