英语四级中的名词性从句
A. 什么叫做名词性从句(英语)
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。例如:
It is a pity that you didn’t go to see the film.
It doesn’t interest me whether you succeed or not.
It is in the morning that the murder took place.
It is John that broke the window.
2. 用it 作形式主语的结构
(1) It is +名词+从句
It is a fact that … 事实是…
It is an honor that …非常荣幸
It is common knowledge that …是常识
(2) it is +形容词+从句
It is natural that… 很自然…
It is strange that… 奇怪的是…
(3) it is +不及物动词+从句
It seems that… 似乎…
It happened that… 碰巧…
(4) it +过去分词+从句
It is reported that… 据报道…
It has been proved that… 已证实…
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。例如:
It is said that President Jingo will visit our school next week. (right)
That President Jiang will visit our school next week is said. (wrong)
(3) It happens…, It occurs… 结构中的主语从句不可提前。例如:
It occurred to him that he failed in the examination. (right)
That he failed in the examination occurred to him. (wrong)
(4) It doesn’t matter how/whether …结构中的主语从句不可提前。例如:
It doesn’t matter whether he is wrong or not. (right)
Whether he is wrong or not doesn’t matter. (wrong)
(5) 含主语从句的复合句是疑问句时,主语从句不可提前。例如:
Is it likely that it will rain in the evening? (right)
Is that will rain in the evening likely? (wrong)
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。例如:
1) What you said yesterday is right.
2) That she is still alive is a consolation.
二.宾语从句
宾语从句就是在复合句中作宾语的名词性从句,通常放在主句谓语动词(及物动词)或介词之后。
1. 作动词的宾语
(1) 由that引导的宾语从句(that 通常可以省略),例如:
I heard that be joined the army.
(2) 由what, whether (if) 引导的宾语从句,例如:
1) She did not know what had happened.
2) I wonder whether you can change this note for me.
(3) 动词+间接宾语+宾语从句。例如:
She told me that she would accept my invitation.
2. 作介词的宾语
例如:Our success depends upon how well we can cooperate with one another.
3. 作形容词的宾语
例如:I am afraid (that) I’ve made a mistake.
That 引导的从句常跟在下列形容词后作宾语:
Anxious, aware, certain, confident, convinced, determined, glad, proud, surprised, worried, sorry, thankful, ashamed, disappointed, annoyed, pleased, hurt, satisfied, content 等。也可以将此类词后的that 从句的看作原因状语从句。
4. It 可以作为形式宾语
It 不仅可以作为形式主语,还可以作为形式宾语而真正的宾语that 从句则放在句尾,特别是在带复合宾语的句子中。 例如:
We heard it that she would get married next month..
5. 后边不能直接跟that 从句的动词
这类动词有Allow, refuse, let, like, cause, force, admire, condemn, celebrate, dislike, love, help, take, forgive等。这类词后可以用不定式或动名词作宾语,但不可以用that引导的宾语从句。例如:
I admire their winning the match. (right)
I admire that they won the match. (wrong)
6. 不可用that从句作直接宾语的动词
有些动词不可用于“动词+间接宾语+that从句“结构中,常见的有Envy, order, accuse, refuse, impress, forgive, blame, denounce, advise, congratulate等。例如:
He impressed the manager as an honest man. (right)
He impressed the manager that he was an honest man. (wrong)
7. 否定的转移
若主句谓语动词为Think, consider, wuppose, believe, expect, fancy, guess, imagine等,其后的宾语从句若含有否定意义,一般要把否定词转移到主句谓语上,从句谓语用肯定式。例如:
I don’t think this dress fits you well.(我认为这件衣服不适合你穿。)
三.表语从句
表语从句在复合句中作表语的名词性从句,放在系动词之后,一般结构是“主语+连系动词+表语从句”。可以接表语从句的连系动词有be, look, remain, seem等。引导表语从句的that常可省略。另外,常用的还有the reason is that… 和It is because 等结构。例如:
1) The question is whether we can make good preparation in such a short time.
2) This is why we can’t get the support of the people
3) But the fact remains that we are behind the other classes.
4) The reason he is late for school is that he missed the early bus.
四.同位语从句
同位语从句就是在复合句中作名词的同位语的名词性从句。
1. 同位语从句的功能
同位语从句对于名词进一步解释,说明名词的具体内容,一般由that引导,例如:
1) The king’s decision that the prisoner would be set free surprised all the people.
2) The order that all the soldiers should stay still is given by the general.
2. 同位语在句子中的位置
同位语从句有时可以不紧跟在它所说明的名词后面,而是被别的词隔开。例如:
He got the news from Mary that the sports meeting was put off.
3. 同位语从句与定语从句的区别
(1) 定语从句中的that既代替先行词,同时以在从句中作某个成分(主语或宾语),而同位语从句中的that是连词,只起连接主句与从句的作用,不充当句中任何成分。
(2) 定语从句是形容词性的,其功能是修饰先行词,对先行词加以限定,描述定的性质或特征;同位语从句是名词性的,其功能是对名词进行补充说明。例如:
1) The news that he told me is that Tom would go abroad next year.(他告诉我的消息是汤姆明年将出国。)(第一个that引导的从句是定语从句,that在从句中作宾语)
2)The news that Tom would go abroad is told by him.(汤姆将出国的消息是他讲的。)(同位语从句,that在句中不作任何成分)
B. 大学英语四级对语法的要求
大学英语四级的复语法主要有虚拟语制气,主谓一致,独立主格,名词性从句以及时态等等,四六级是不直接考察语法,但是听力中需要听句子,阅读中需要句子,作文中需要写句子,而语法是句子的骨架,有句子的地方就有语法,所以语法基础是四六级做题之根本。
虚拟语气:强调说话人的主观愿望和假想情况。考生应着重复习能引起虚拟语气的某些介词、介词短语和连词;主语从句、宾语从句、同位语从句,虚拟倒装句等等。
主谓一致:这类考题灵活性大,需要根据实际情况判断谓语动词的单复数形式。一部分具有生命意义的集合名词做主语时谓语动词多采用复数形式。
倒装结构:表示强调或突出,分为全部倒装和部分倒装。那些否定词(组)、介词短语能引起倒装句,部分倒装和全部倒装有何区别。
独立主格题:一般说来,在句子中没有连接词的情况下,逗号是无力连接两个句子的,其中一个分句要么是非谓语形式,要么是独立主格结构。这两种结构都做状语,不同的是独立主格结构有自己的逻辑主语。
名词性从句:形容词性的定语从句是考核的重点,用什么引导词,引导词前面的介词形式,引导词在从句中做什么成分(作宾语、主语还是状语等),从句的语序等等均有可能成为考点。
C. 四大名词性从句
主语从句:主要对主语起修饰作用e.g.Whether the plan is feasible remains to be proved.
宾语从句:主要是修饰宾语的e.g.Tell your mother whether you will come home on Friday.
同谓语专从句: 对句中名词做解释说明属e.g.They are investigating the question whether the man is right.
表语从句:做表语的句子e.g.The point is whether we should go there.
D. 英语中的名词性从句的分类及详细介绍
引导名词性从句的连接词可分为三类:
连接词:that,whether,if
不充当从句的任何成分)
连接代词:what,
whatever,
who,
whoever,
whom(ever),
whose(ever),
which(ever).
连接副词:when,
where,
how,
why
,how
many,how
much,等,代词在从句中可以作主语,宾语,表语,定语,而副词在从句中作状语
eg.What
you
said
sounds
reasonable.
Whatever
you
said
is
right.(这两句中都是主语从句)
eg:He
wants
to
know
whether/if
we
can
help
him.(动词后宾语从句用这两个是否都可以)
They
are
talking
about
whether
we
will
go
for
a
picnic.(介词后宾语从句,只用这一个是否)
eg:What
I
can't
understand
is
why
he
left
without
saying
a
word.(why引导的是表语从句)
eg:
I
have
no
idea
why
he
left
without
saying
a
word
.(why引导的同位语从句,即对前一个名词的解释或说明)
E. 谁能给我解释一下英语中的名词性从句
简而言之,名词在句子中可以做主语、宾语、表语,
名词性从句只是把一个简单的名专词换成了一个属句子,所以这样的句子也可以在句子中作主语从句(因为太长,显得头重脚轻,所以常用it作形式主语)、宾语从句和表语从句。
举例子: It is said that he will come tomorrow. It作形式主语
He said that he would come tomorrow. 宾语从句
This is what you mentioned yesterday. 表语从句
F. 英语的名词性从句分为哪几种各自有什么注意点
你好,很高兴为你解答。
名词从句大体分为四大类:主语从句、宾语从句、表语从句和同位语从句。
1. 主语从句:
作句子主语的从句叫主语从句。主语从句通常由从属连词that,whether,if和连接代词what,who,which,whatever,whoever以及连接副词how,when,where,why等词引导。
【注意】:that在句中无词义,只起连接作用;连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用,在从句中充当从句的成分。
2. 宾语从句 :
引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样,在句中可以作谓语动词或介词及非谓语动词的宾语。
【注意】由连接词that引导宾语从句时,that在句中不担任任何成分,在口语或非正式的文体中常被省去,但如从句是并列句时,第二个分句前的that不可省。
3.表语从句:
其基本结构为:主语 + 系动词 + that从句。
4. 同位语从句:
说明其前面的名词的具体内容,同位语从句通常由that引导。
【 注意】:同位语从句和定语从句的区别:
that作为关系代词,可以引导定语从句,充当句子成分,在从句中作宾语时可以省略; that引导同位语从句时,起连词的作用,没有实际意义,不充当句子成分,一般不能省略。
试比较下面两个例句:
I had no idea that you wanted this job.(that引导同位语从句,不能省略)
Have you got the idea(that)the book gives you ? (that引导定语从句,作宾语,可以省略)
望采纳,祝开心~!!!
G. 英语中名词性从句有哪几种啊
名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
1. 主语从句
作句子主语的从句叫主语从句。主语从句通常由从属连词that,whether,if和连接代词what,who,which,whatever,whoever以及连接副词how,when,where,why等词引导。that在句中无词义,只起连接作用;连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用,在从句中充当从句的成分。例如:
What he wants to tell us is not clear. 他要跟我们说什么,还不清楚。
Who will win the match is still unknown. 谁能赢得这场比赛还不得而知。
It is known to us how he became a writer. 我们都知道他是如何成为一名作家的。
2. 宾语从句
名词句用作宾语的从句叫宾语从句。引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样,在句中可以作谓语动词或介词及非谓语动词的宾语。
1. 由连接词that引导的宾语从句
由连接词that引导宾语从句时,that在句中不担任任何成分,在口语或非正式的文体中常被省去,但如从句是并列句时,第二个分句前的that不可省。例如:
He has told me that he will go to Shanghai tomorrow. 他已经告诉我他明天要去上海。
We must never think (that) we are good in everything while others are good in nothing. 我们决不能认为自己什么都好,别人什么都不好。
3. 表语从句
在句中作表语的从句叫表语从句。引导表语从句的关联词与引导主语从句的关联词大致一样,表语从句位于连系动词后,有时用as if引导。其基本结构为:主语 + 系动词 + that从句。例如:
The fact is that we have lost the game. 事实是我们已经输了这场比赛。
That’s just what I want. 这正是我想要的。
4. 同位语从句
同位语从句说明其前面的名词的具体内容。同位语从句通常由that引导,可用于同位语从句的名词有advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wish、word等。例如:
The news that we won the game is exciting. 我们赢得这场比赛的消息令人激动。
I have no idea when he will come back home. 我不知道他什么时候回来。
The thought came to him that Mary had probably fallen ill. 他想到可能玛丽生病了。
同位语从句和定语从句的区别:
that作为关系代词,可以引导定语从句,充当句子成分,在从句中作宾语时可以省略; that引导同位语从句时,起连词的作用,没有实际意义,不充当句子成分,一般不能省略。
试比较下面两个例句:
I had no idea that you were here.(that引导同位语从句,不能省略)
Have you got the idea(that)this book gives you of life in ancient Greece?(that引导定语从句,作宾语,可以省略)
H. 英语中的名词性从句是什么意思能给讲解吗,并举例说明
名词性从句包括主语从句、宾语从句、表语从句和同位语从句。因为它是从句,因此具有句子的结构特点(即有一套主谓成份);同时又具有名词性特点,所以可以在复合句中作主语、宾语、表语或同位语。
I. 英语中的名词性从句,分别举一个例句。
1. 连接词 that 只起连接作用,没有任何意思,也不充当句子成分,在宾语从句中可省略,但引导其他名词性从句时通常不省略。如:
I hope (that) you enjoy your holiday. 希望你假期过得好。
2. 连接词 whether 也不充当句子成分,但有自己的意思,表示“是否”;引导宾语从句时,可换成 if,但引导其他名词性从句时不能换成 if。如:
He asked whether [if] I would show him the way. 他问我是否可以给他带路。
3. 连接代词 who(m), whose, which, what 等,均有各自的意义,在从句中作主语、宾语、定语等。如:
That’s why she wanted to leave. 这就是她想离开的原因。
When we arrive doesn't matter. 什么时候到没有关系。
Tell me which one you like best. 告诉我你最喜欢哪一个。
4. 连接副词 when, where, why, how 等,也各自有自己的意义,在从句中作状语。如:
The question is how we should carry out the plan. 问题是怎样执行这个计划。
When she’ll be back depends much on the weather. 她什么时候回来在很大程度上要看天气。
Why he did it will remain a puzzle forever. 他为什么这样做将永远是一个谜。
不懂欢迎追问,有帮助望采纳,谢谢。