赖氏经典英语语法—名词性从句
名词性从句的用法和特殊引导词和名词性从句在句子中的位置和作用

名词性从句的用法和特殊引导词和名词性从句在句子中的位置和作用名词性从句的用法和特殊引导词以及名词性从句在句子中的位置和作用名词性从句是指在句子中充当名词的从句。
它可以作主语、宾语、表语、同位语等,在英语中被广泛应用。
本文将介绍名词性从句的用法以及特殊引导词,并探讨名词性从句在句子中的位置和作用。
一、名词性从句的用法名词性从句可以用来代替句子中的名词,并在句中担任特定的语法角色。
主要有以下几种用法:1. 主语从句:名词性从句作主语,位于主句的动词之前,如:- What you said is true.(你说的是真的。
)- Whether she will come is still unknown.(她是否会来仍然是未知的。
)2. 宾语从句:名词性从句作及物动词或介词后的宾语,如:- I don't know what to do.(我不知道该怎么办。
)- They asked me where I was going.(他们问我要去哪里。
)3. 表语从句:名词性从句作连系动词后的表语,如:- The most important thing is that you are safe.(最重要的是你平安。
)- My wish is that everyone can live a happy life.(我的愿望是每个人都能过上快乐的生活。
)4. 同位语从句:名词性从句作另一个名词的同位语,如:- The fact that he made a mistake surprised everyone.(他犯了一个错误这个事实令人惊讶。
)- Her belief that honesty is the best policy is well-known.(她认为诚实是最好的策略,这一观点很有名。
)二、特殊引导词名词性从句有一些特殊的引导词,根据从句的不同用法选择相应的引导词。
以下是常见的特殊引导词:1. 作主语从句的引导词:- that: He said that he would come.(他说他会来。
名词性从句知识点

名词性从句知识点在英语语法中,名词性从句是一个重要且复杂的部分。
它在句子中起着名词的作用,包括主语从句、宾语从句、表语从句和同位语从句。
接下来,让我们逐一深入了解。
一、主语从句主语从句即在句子中充当主语的从句。
例如,“What he said is true”(他说的是真的。
)在这个句子中,“What he said”就是主语从句。
引导主语从句的连接词主要有三类:1、从属连词:that、whetherThat he will come is certain (他会来是肯定的。
)这里的“that”在从句中不充当成分,只起引导作用。
Whether she will go there is not decided (她是否会去那里还没决定。
)“whether”表示“是否”。
2、连接代词:what、who、which、whose、whatever、whichever、whoever 等What you need is more practice (你需要的是更多的练习。
)“what”在从句中充当宾语。
3、连接副词:when、where、why、how 等When the meeting will be held has not been announced (会议何时举行还未宣布。
)需要注意的是,主语从句后置时,常用 it 作形式主语,而将真正的主语从句放在后面。
例如:It is unknown whether he will come (他是否会来还不知道。
)二、宾语从句宾语从句在句中充当宾语。
比如,“I know that he is a student”(我知道他是个学生。
)“that he is a student”就是宾语从句。
引导宾语从句的连接词与主语从句类似:1、从属连词:that(在口语或非正式文体中常省略)、whether、ifHe said (that) he was busyI wonder if/whether he will come2、连接代词:what、who、which、whose、whatever、whichever、whoever 等She asked me what I was doing3、连接副词:when、where、why、how 等Could you tell me how I can get there?宾语从句的时态要根据主句的时态来变化。
英语语法知识点汇总:名词性从句

英语语法知识点汇总:名词性从句英语语法知识点汇总:名词性从句教书育人楷模,更好地指导自己的学习,让自己不断成长。
让我们一起到店铺一起学习吧!以下是店铺为大家编辑的英语基础语法文章,欢迎大家阅读!在句子中起名词作用的句子叫名词从句 (Noun Clauses)。
名词从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等,因此根据它在句中不同的语法功能,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。
17.1 引导名词性从句的连接词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,whose, which.连接副词:when, where, how, why不可省略的连词:1. 介词后的连词2. 引导主语从句和同位语从句的连词不可省略。
That she was chosen made us very happy.We heard the news that our team had won.比较:whether与if 均为"是否"的意思。
但在下列情况下,whether 不能被if 取代:1. whether引导主语从句并在句首2. 引导表语从句3. whether从句作介词宾语4. 从句后有"or not"Whether he will come is not clear.大部分连接词引导的主语从句都可以置于句末,用it充当形式主语。
It is not important who will go.It is still unknown which team will win the match.17.2 名词性that-从句1)由从属连词that引导的从句叫做名词性that-从句。
That只起连接主句和从句的作用,在从句中不担任任何成分,本身也没有词义。
名词性从句完整版

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从出题者的角度,就是要考察名词性从句中的语序以及引导词之间的区别。有时候,会结合插入语或名词与同位语隔开,或使句子结构复杂化等使得难度增加。其实,总的难度和变化都不大。但是从考生的角度来说,如果考生对句子结构掌握不过硬,对某些词或词组的用法不了解,就会容易造成和定语从句、状语从句的混淆,造成根本环节的误判而用其他从句的规则去解题。造成丢分。
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⒊连接副词:引导从句并作从句的状语 when—表示时间 where—表示地点 why—表示原因 how—表示方式 ①When we’ll have a meeting is not decided. ②I don’t know where I can buy such a book . ③ Why he did it will remain a puzzle forever. ④The question is how we should carry out the plan.
正:It was doubtful if /whether Mary really heard him.
误:If Mary really heard him is really doubtful.
正:Whether Mary really heard him is really doubtful.
eg.Wherever he goes makes his parents worry.
( 主语从句)
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注意:
如何选用连接词?
用法规则:
先根据从句的结构确定用哪种连接词,从句
不缺成分用连词,缺主语、宾语、表语、定语用
连接代词,缺状语用连接副词,再根据从句意思
名词性从句和宾语从句的用法

名词性从句和宾语从句的用法名词性从句和宾语从句是英语语法中的两个重要内容,它们在句子中充当名词的角色,起到连接主句和从句的作用。
本文将详细介绍名词性从句和宾语从句的用法,并给出相应的示例。
一、名词性从句的用法名词性从句是指充当主句中某一成分的从句,它可以起到名词的作用,常用作主语、宾语、表语等。
名词性从句一般引导词有that, whether/if, who, whom, which, what等。
下面分别介绍名词性从句的三种常见用法。
1. 名词性从句作主语名词性从句作主语时,常用it作为形式主语,而将从句置于句末。
例如:It is important that you arrive on time.(你准时到达很重要。
)Whether he will come or not remains unknown.(他是否会来还不确定。
)2. 名词性从句作宾语名词性从句作宾语时,从句通常紧跟在一些动词、形容词或名词后面。
常见的动词有believe, think, know, consider, hope, want等。
例如:She believes that honesty is the best policy.(她相信诚实是最好的策略。
)They hope to find out what happened.(他们希望找出发生了什么事。
)3. 名词性从句作表语名词性从句作表语时通常使用it作为形式主语,而将从句放在后面。
例如:I find it interesting that he likes playing the piano.(我发现他喜欢弹钢琴很有趣。
)It is strange that she didn't come to the party.(她没有来参加晚会真奇怪。
)二、宾语从句的用法宾语从句是指充当主句中动词的宾语的从句,常用作及物动词的宾语、介词的宾语以及某些动词后面的宾补。
英语语法——名词性从句精讲

名词性从句精讲在复合句中起名词作用的从句叫名词性从句,包括作主语从句、表语从句、宾语从句和同位语从句。
(1)主语从句就是在复合句中作主语的从句。
主语从句常用that, whether, who, whom, whose, what, which, when, where, how, why, whatever, whoever等引导。
如:Whether he will be able to come remains a question. 他是否来还是问题。
That China is a great socialist country is well known. 众所周知,中国是一个伟大的社会主义国家。
注:为避免头重脚轻,使句子平衡,常用it作形式主语,而将主语从句后置。
如上述第二例常说成:It is well known that China is a great socialist country.但是,由连接代词what, whatever, whoever等引导的主语从句一般不能用形式主语。
如:What he found surprised me greatly. 他的发现使我非常吃惊。
Whoever is finished may rest. 凡是做完工的人都可以休息。
(2)表语从句就是在连系动词之后作表语的从句。
引导表语从句的连接除与引导主语从句的连接词外,还有as if,as though。
如:The question is whether he is able to do it alone. 问题是他能否单独做这件事。
It looks as if (though) it is going to snow. 天好像要下雪似的。
注意:要区分以下句式:1. that’s why+结果;that’s because+原因。
2. the reason why /for…is that…He is absent. That’s because he is ill. 他缺席,这是因为他生病了。
高三英语语法基础知识——名词性从句知识精讲

高三英语语法基础知识——名词性从句【本讲主要内容】英语语法基础知识——名词性从句【知识总结归纳】名词性从句:相当于一个名词的作用的从句。
名词性从句有四种:主语从句,表语从句,同位语从句和宾语从句。
请先看下列例句:How we can get to the isolated island needs to be discussed in the meeting.(主语从句)It is not decided yet who will play the leading role in this movie.(主语从句)That is why I came here this evening.(表语从句)We must remember the fact that the black in USA have done quite a lot for the young country. (同位语从句)I have no idea who will get the prize this year.(同位语从句)They suggested that the land should be shared equally among the peasants.(宾语从句)1. 主语从句:主语从句在主从复合句中作主语。
通常由连词that, whether,连接代词who, whom, what, which , whatever, whoever, whomever, whose,及连接副词why, when where, how来引导主语从句。
单个的主语从句充当主语,其后一般用单数谓语;如并列主语从句作主语,其后通常用复数谓语。
有时常用形式主语it代替主语从句,而把主语从句置于句末,以避免句子头重脚轻。
What the child said was whispered from one to the other.Which one will be yours is unknown.That he will come is certain.形式主语it 的常见句型有:It be (seem)+adj.+ that 从句It is true that Mr Wang had been seriously ill.It seems surprising that he has failed in this exam.②It be + adj + that从句(这种从句中常用should加动词原形或省should只用动词原形。
名词性从句语法总结

名词性从句语法总结名词性从句是在句子中充当名词成分的从句,它可以在句子中作主语、宾语、表语、定语等成分。
名词性从句包括主语从句、宾语从句、表语从句和定语从句。
在使用名词性从句时,需要注意从句的引导词和从句本身的语法结构。
下面对名词性从句的语法规则进行总结:1. 主语从句。
主语从句在句子中充当主语成分,常常由连接词 that, whether, if, who, whom, whose, what, which, when, where, why, how 等引导。
例如:What he said is true.(他说的是真的。
)。
Whether we can go camping depends on the weather.(我们能否去野营取决于天气。
)。
2. 宾语从句。
宾语从句在句子中充当宾语成分,常常由连接词 that, whether, if, who, whom, whose, what, which, when, where, why, how 等引导。
例如:I know who did it.(我知道是谁干的。
)。
She asked me where I was going.(她问我要去哪里。
)。
3. 表语从句。
表语从句在句子中充当表语成分,常常由连接词 that, whether, who, whom, whose, what, which 等引导。
例如:The problem is that we don't have enough time.(问题在于我们没有足够的时间。
)。
Her wish is that she can travel around the world.(她的愿望是能够环游世界。
)。
4. 定语从句。
定语从句在句子中充当定语成分,用来修饰某个名词或代词。
常常由连接词that, who, whom, whose, which, when, where 等引导。
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名词性从句
名词性从句包括宾语从句、主语从句、表语从句、同位语从句。
名词性从句一共有三种:1)that从句;2)whether从句;3)疑问词所引导的从句。
分项说明如下:
1)that从句
任何一个主语起首的陈述句前面冠以that,即成that从句。
He enjoys dancing. That he enjoys dancing.
2)whether从句
由可用yes/no回答的问句,即一般疑问句变化而成。
a) 问句有be动词时:Is he happy? Whether he is happy.
b) 问句有一般助动词(can, will, may, should, ought to, must, have)时:
Can he do it? Whether he can do it
c) 问句有do, does, did等助动词时:主语与助动词还原,再将do, does, did去掉,后面的动词依人称和时态变化。
Did he come? Whether he came
3)疑问词所引导的从句
由疑问词(when, what, how, where, why)等引导的问句,即特殊疑问词,变化而成。
a) 问句有be动词时:What is he doing? What he is doing.
b) 问句有一般助动词(can, will, may, should, ought to, must, have)时:
主语与助动词还原,前面保留疑问词。
Where can he find it? Where he can find it.
c) 问句有do, does, did等助动词时:
主语与助动词还原,前面保留疑问词,再将do, does, did去掉,动词依人称和时态变化。
What did he write? What he wrote.
注:
Who, what, which为疑问代词,若在问句中作主语,变成名词性从句时,结构不变。
Who came here? Who came here.
名词性从句的功能:
1)作主语
Where he lives is still in doubt.
2)作及物动词的宾语
I know that he will go abroad in the near future.
3)作介词的宾语
a)此时仅能用whether从句或疑问词引导的名词性从句作宾语。
That从句不可作介词的宾语。
I am worried about whether he can do it.
prep. o.
I am curious about how he’ll cope with the problem.
b)遇有介词,且非要使用that从句时,其补救方法如下:
①介词+ the fact + that从句,如此就可用the fact作介词的宾语,而that从句就成了the fact的同位语。
I am sure of the fact that the team has won the game.
prep. o. 同位语
I am worried about the fact that he doesn’t study.
②保留介词,不加the fact,但介词之后的that从句要做下列变化:
除去that;that后的主语变成所有格;动词变成动名词。
I am worried about that he plays around all day.
prep. his playing
I am worried about his playing around all day.。