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定语从句,名词性从句,非谓语从句的区别和联系是什么?

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解决时间 2021-04-22 05:09
定语从句,名词性从句,非谓语从句的区别和联系是什么?
最佳答案
定语从句

定语从句是在句子中起形容词作用的主谓结构,通常修饰它前面的名词或代词,即它的
先行词。定语从句是由关系代词和关系副词引导的。
1.关系代词引导的定语从句
⑴引导定语从句的关系代词有:who,whom,whose,which,that。
⑵关系代词在从句作主语、宾语、定语和表语的作用;当作宾语时,关系代词常常可省
略。如:
This is the girl(whom)you’ve been looking for.
⑶当定语从句所修饰的先行词是人或人格化的动物时,引导词用who,whom或whose;
如果先行词是无生命的东西,用关系代词which;而that可用于以上两种情况。
The man who robbed you has been arrested.

Which还可以指婴儿、动物和表示单数意义的集合名词,如:
The baby(which) the nurse brought in was Mary’s child.
⑷关系代词that和which的语法区别
当先行词的前面有形容词的最高级修饰时,通常用that而不用which。如: 
The final match is one of the most exciting football games that I have ever seen.
当定语从句所修饰的先行词的前面有all,any,little,only,much等修饰时,或者这些先行
词本身就是all,one,little,much,nothing等不定代词时,通常用that而不用which。
I am interested in all that you have told me.

当定语从句作介词的宾语时,只能使用which而不用that。
The world in which we live is in constant motion and in constant change.
当定语从句是与代词、数词或名词词组连用引导非限定性定语从句时,只能使用which
而不用that。
I bought a dozen eggs, five of which broke when I dropped the box at my door.
当先行词的前面有the+only(first,last,same,next,very)等词修饰时,通常用that而不用
which。
This is the very movie that I want to see.
当被用来指代整个句子,引导非限定性定语从句时,只能使用which而不是that。
Things then improved,which surprises me.

2.关系副词引导的定语从句
⑴引导定语从句的关系副词有:when,where,why,how等。
⑵关系副词when,where,why在从句中作状语时,可用“介词+which”来替代。如:
The reason why(=forwhich) he is in hospital hasn’t been known yet.
3.限定性定语从句和非限定性定语从句
限定性定语从句与先行词关系密切,用来描述主句所涉及的人或物的具体情况,与主句
不可分割。这种从句在口语中前后没有停顿,在文字中前后没有逗号。
非限制性定语从句与先行词之间的关系比较松散,为主句所描绘的人或物提供一些附加
情况,并非绝对必要。这种从句在口语中有停顿,在文字中往往用逗号与主语隔开。
另外,非限定性定语从句可用which,who,whose,when,where等来引导,但不可以用that
来引导。如:
The wine,which was in the cellar,was ruined.(非限定性)
The wine which (that)was in the cellar was all ruined.(限定性)
在限定性定语从句中,关系代词有时可省略;但是在非限定性定语从句中,关系代词不
能省略。

状语从句

在句子中起状语作用的句子叫做状语从句。状语从句可以位于句首、句中或句末。位于
句首时,从句末通常有逗号与主句隔开;位于句中时,从句的前后都必须有逗号;位于句末
时,从句的前面可以不用逗号。状语从句按意义可分为时间、地点、原因、条件、让步、方
式、比较、目的和结果等状语从句。状语从句由从属连词引导。
1.时间状语从句
引导时间状语从句的连词有:after,as,before,once,since,till,until,when,whenever,

now(that),assoonas,aslongas,nosooner…than等。有些名词短语也可以引导状语从句,如:

every time, the moment,the instant。
When I saw her,she was watching closely at the photo on the wall.

as,when和while都可以表示主句中动作发生的背景,也可以表示主句的动作与从句的
动作同时发生,如:
As he stood there,he heard what they were talking about.

till和until在主句谓语为持续性动词的肯定式时,作“直到……为止”解,在主句谓语
为瞬间动词的否定式时作“直到……才”解,如:
Let’s wait till/until the rain stops.

once,directly,the moment,th einstant和as soon as都作“一…就”解,通常可以互换,
如:
Once you understand this, you will surely make rapid progress in your study.
由副词加从属连词no sooner…than,hardly/barely/scarcely…when等引导的时间状语从
句,如果no sooner,hardly,barely,scarcely前置句首,主语与谓语须用倒装结构。如:
Hardly had the film started when they came.

2.地点状语从句
地点状语从句通常由where,wherever引导,如:
Where there is a will,there is a way.

从属连词还能与any,no,every等一起构成复合句,引导地点状语从句。如:
Everywhere you go,you will be warmly welcomed.
3.方式状语从句
引导方式状语从句的连词有as,as if,as though等,从句通常位于主句之后,如:
He had never blushed as she blushed then.(as作“按照”或“像”解。)
as if和as though都做“好象”解,两者可以互换,从句既可用陈述语气(表示可能符
合事实的情况),又可用虚拟语气(表示与事实不符的情况),如:
I remember the whole thing as if it happened yesterday.

4.条件状语从句
引导条件状语从句的连词有:if,unless,as/so long as,suppose(that),supposing(that),in
case,when等。条件状语从句可以分为真实条件状语从句和非真实条件状语从句。
⑴真实条件句
真实条件句表示现实或可能的情况,由if引导,它的主句可以是陈述句,疑问句或祈
使句,可置于主句之前或之后。
If you heat ice,it melts.

unless引导的否定条件状语从句,在意义上相当于if…not,如:
Don’t come unless I telephone.
as/so long as,provided/providing(that)意为“只要、如果”,如:
You can borrow this pen as long as you can keep it well.
in case在英国英语中表示目的,在美国英语中可表示条件,意为“如果、万一”,如:
In case the house burns down,we’ll get the insurance money.
⑵非真实条件句请参阅第十一章“虚拟语气”。
5.让步状语从句
引导让步状语从句的连词有:although,though,even if,even though,if,for all that,when,
while,whether…or,whatever,no matterwhat等。
although和though意义一样,都作“虽然、即使”解,都表示让步,一般情况下可互换
使用,只是although语气较重,大多置于句首。如:
They are generous though they are poor.

even if和even though都作“即使”解,两者可以互换使用,如:
She insisted on her own opinion even though/even if he was wrong.
if作“即使、虽然”解,也表示让步,如:
If he is wrong,he is honest.
whether…or作“不论……是否”或“不论……还是”解,如:
You don’t have to worry me whether I am well or ill.
为了强调让步意义,在正式文体或文学作品中,常用as引导让步从句,从句的补语或
状语置于句首。如:
Strong as you maybe,you cannot lift it.
词尾为-ever的wh-词可以与“nomatter+wh-词”互换使用,作“无论……”解,后者
常用于口语中,如:
Whoever/No matter who rings,tell him I’m out.
由whenever,wherever,however引导的从句,也可以分别看作时间状语从句、地点状语
从句和方式状语从句。把它们当作让步状语从句是因为它们常有no matter when(where,how)
的含义。
6.原因状语从句
原因状语从句通常由because,since,as,when now(that),seeing(that),considering(that)等
引导。
because,since和as三者的区别如下:
because的语势最强,其次是since,再次是as。
because可以回答why引导的特殊问句,而since和as不能。
because引导的从句可以被just,only,simply等副词修饰,也可以用并列连词构成并列的
because从句,而since和as则不能。如:
We pardoned him only because he was still young.
for表示原因时,作“因为”解,多用于正式文体,有时可以与because换用,但for从
句只能置于主句之后。如:
She didn’t go to school,for/because she was ill.
now(that)和seeing(that)都作“既然”解,通常可与since或as换用,如:
Now(that)you have come,you may as well stay.

7.结果状语从句
引导结果状语从句的连词有:so that,so…that,such that,such…that,that等。
当从句前面有逗号时,sothat中that可省略,如:
It was dark,so(that)we could see nothing in front of us.
“So+形容词/副词+that”是引导结果状语从句的常用结构,如:
He talked so loud that he annoyed the speaker.
“such(a)+形容词+名词+that”与“so…that”的意义相同,如:
It was such a hot day that people could not go out.

that可以单独引导结果状语从句,如:
Theq uestion is of great importance that it cannot be neglected.
8.目的状语从句
引导目的状语从句的连词有:in order that,so that,so,that,in case,for fear that,lest等。
in order that与so that的意义和用法基本相同,in order that多用于正式文体,常表示经
过认真考虑的目的,如:
In order that he would have more space for painting,he bought a big house.

So和that可视为so that的省略形式,但不如so that常用,如:
Bring it closer so/that I may see it better.
for fear that,in case和lest都表示否定的目的,相当于so that…not或in order that…not,
作“以免、以防”解。
He wrote the name down for fear that he should forget it.
lest限于正式文体,它所引导的从句中的谓语动词多用shouldbe型或be型虚拟形式,
如:
He hid the box lest it (should)be stolen.
incase引导的从句谓语既可以用虚拟形式,又可用陈述语气,如:
Better take more clothes in case it i scold.
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