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名词性从句讲解(最全版)

名词性从句讲解(最全版)

名词性从句讲解(最全版)名词性从句是一个从句,它在句子中充当名词的角色。

它可以作为主语、宾语、表语、同位语或介词宾语。

名词性从句通常由连接词引导,如that、whether、if、who、whom、whose、which、what等。

1. 作为主语:名词性从句可以作为主语,取代一个名词或名词短语,引导词通常为that或whether。

例如:- What you said is true.(你说的是真的。

)- Whether he will come is still uncertain.(他是否会来还不确定。

)2. 作为宾语:名词性从句可以作为及物动词或介词的宾语,引导词通常为that、whether、if、who、whom、whose、which、what等。

例如:- She asked me what I wanted.(她问我想要什么。

)- I don't know if/whether he will come.(我不知道他是否会来。

)3. 作为表语:名词性从句可以作为系动词的表语,引导词通常为that、whether、who、whom、whose、which、what等。

例如:- The problem is that she doesn't understand.(问题在于她不理解。

)- The question is who will take care of them.(问题是谁会照顾他们。

)4. 作为同位语:名词性从句可以作为同位语,解释或说明前面的名词或代词,引导词通常为that、whether、who、whom、whose、which、what等。

例如:- The fact that he lied surprised me.(他撒谎的事实让我感到惊讶。

)- His belief that she will succeed is unwavering.(他坚信她会成功。

名词性从句解读

名词性从句解读

名词性从句解读名词性从句是英语语法中的一种重要结构,它在句子中担任名词的作用。

在本文中,我们将探讨名词性从句的概念、分类以及使用方法,帮助读者更好地理解和运用名词性从句。

一、名词性从句的概念名词性从句,顾名思义,是指在句子中可以担任名词功能的从句。

它与名词一样,可以在句子中作主语、宾语、表语、同位语等。

名词性从句主要有三种类型:主语从句、宾语从句和表语从句。

1. 主语从句主语从句在句子中作主语,常由连接词“that”引导。

例如:- That he is late makes me angry.(他迟到了让我生气。

)- Whether she can come is still uncertain.(她能否来还不确定。

)2. 宾语从句宾语从句在句子中作及物动词的宾语,常由引导词“that”或“whether/if”引导。

例如:- He asked whether/if I could help him.(他问我能否帮他。

)- I believe that he will succeed.(我相信他会成功。

)3. 表语从句表语从句在句子中作表语,常由引导词“that”或“whether/if”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。

)- My concern is whether/if he understands the importance of this project.(我的担忧是他是否理解这个项目的重要性。

)二、名词性从句的使用方法名词性从句可以使句子更加丰富、灵活,同时也能够避免重复使用某些词语。

以下是使用名词性从句的一些常见方法:1. 引导词的选择名词性从句的引导词有很多,如“that”、“whether/if”、“what”、“who”、“why”等。

在选择引导词时,需要根据具体语境和从句的功能来确定。

四类名词性从句详解

四类名词性从句详解

四类名词性从句详解所谓名词性从句,就是指其作用相当于名词的从句,它包括主语从句、表语从句、宾语从句和同位语从句。

一、主语从句1.引导词:主语从句就是在复合句中用作主语的从句,引导主语从句的引导词主要有三类:一是that;二是whether;三是那些可以用作疑问词的词语,如what, who, which, when, where, how, why等。

如:That we shall be late is certain. 我们要晚了,这是确定无疑的。

What he says is not important. 他说的话并不重要。

How this happened is not clear to anyone. 这件事怎样发生的,谁也不清楚。

Which side wins makes no difference to him. 哪边赢他都无所谓。

Whether it will do us harm remains to be seen. 是否对我们有害还要看一看。

2.形式主语:有时为了避免句子显得“头重脚轻”,可用it作形式主语放在句首,而把真正的主语放在句末。

如:It’s a pity that he didn’t come. 很遗憾他没来。

It’s not yet known what she did. 她做什么还不得而知。

It was uncertain whether he could come or not. 他是否会来还不肯定。

这三句句首的it均为形式主语,相应的真主语分别是that he didn’t come / what she did / whether he could come or not。

二、表语从句表语从句就是在复合句中用作表语的从句。

一般说来,可用于引导主语从句的引导词也可用于引导表语从句,如that, what, who, which, when, where, how, why, whether等。

名词性从句的三种类型及例句解析

名词性从句的三种类型及例句解析

名词性从句的三种类型及例句解析名词性从句是指在一个句子中充当名词的从句。

它可以作主语、宾语、表语和同位语等,并能够起到连接子句与主句的作用。

在英语语法中,有三种主要类型的名词性从句:宾语从句、主语从句和表语从句。

本文将详细解析这三种类型,并举例说明其用法。

一、宾语从句宾语从句作为一个整体出现在主句中的动词后面,充当主句的宾语。

它常常引导由that、whether/if、wh-疑问词引导的从句。

下面是一些例句:1. 主句:He asked me a question.宾语从句:He asked me whether I had finished my homework.解析:宾语从句"whether I had finished my homework"作为动词"ask"的宾语,表达了一个疑问。

2. 主句:She doesn't know the answer.宾语从句:She doesn't know what the answer is.解析:宾语从句"what the answer is"作为动词"know"的宾语,表示对答案的不知道。

3. 主句:They wonder if he will come to the party.宾语从句:They wonder if/whether he will come to the party.解析:宾语从句"if/whether he will come to the party"作为动词"wonder"的宾语,表达了对他是否会来参加派对的疑问。

二、主语从句主语从句作为一个整体出现在句子的最前面,充当主句的主语。

它通常由that引导,也可以由wh-疑问词引导。

以下是一些例句:1. 主句:It is important to learn a foreign language.主语从句:That she is a hardworking student is important.解析:主语从句"That she is a hardworking student"作为句子的主语,强调了她是一个勤奋的学生的重要性。

名词性从句详解及练习

名词性从句详解及练习

各类从句详解英语从句可以分为名词性从句、定语从句和状语从句三大类:下面我们逐一进行说明:一、名词性从句(主语从句、表语从句、宾语从句、同位语从句)主语从句、表语从句、宾语从句和同位语从句在复合句中的充当的成分和其名称相同,分别作主句的主语、表语、宾语和同位语。

上述这四种从句均被称为名词性从句。

所有的名词性从句均不能用逗号分开,并且它们都用相同的关联词,关联词如下:①主从连词:that (无意义), whether (是否), if (是否)(在句子中不充当任何成分)②连接代词:who (谁), whom (谁), whose (谁的), what (什么), which (哪一个)③连接副词:when (什么时候), where (什么地方), how (怎样), why (为什么)主从连词只起连接作用,连接代词和连接副词除了起连接作用外,还充当从句某一个成分。

另外,可以用whatever, whichever, whoever, who(m)ever等连接代词引导名词性从句,来加强语气。

下面分别对各种名词性从句进行介绍(一)主语从句(subject clause)在主句中用作主语的主谓结构称之为主语从句。

例如:That he will come to the discussion is certain.他来参加讨论是确定的。

That the moon moves round the earth is well known to all of us.月球绕地球转动,这是我们大家都熟知的。

When the meeting is to be held has not yet been decide.会议什么时候召开还没有决定。

主语从句放在句首,句子常常显得比较笨重,因此通常可以把it放在句首,作形式主语,而将主语从句放在后面。

例如上面的句子可以分别改写为:It is certain that he will come to the discussion.It is well known to all of us that the moon moves round the earth.It has not yet been decide when the meeting is to be held.下面再举一些例句:What they are after is profit.他们追求的是利润。

英语名词性从句讲解(最全版)

英语名词性从句讲解(最全版)
inspired us.
5.I don’t think it necessary __B__ you should
read English aloud.
6.He told me __A__ his father had died and __B__ he had to make a living alone.
“what”---“事情”、作主表宾、起连接作用
“which”---“哪----”、作定语、起连接作用
“whose”---“谁的”、作定语、起连接作用
.
17
名词性从句考点归纳 其它连接代词和副词的使用
主要根据名词性从句中的具体意义,正 确地选择 who, which, when, where, why, how 等连接词,这些连接词既具有疑问含义, 又起连接作用,同时在从句中充当各种成分。
7.The doctor can hardly answer the question
_w__h_e_t_her the old man will recover soon.
.
16
名词性从句引导词的用法(2):
“who”---“谁”、作主语、起连接作用
“whom”---“谁”、作宾语、起连接作用
连接代词
主语从句
4、I knew the news that our team won the match.
宾语从句
5、His suggestion is that we should finish the
work at once.
表语从句
.
8
that引导的名词性从句,作主语、表语、 同位语时一般不能省略。 在引导单个的宾语从句时可以省略--1/6

英语名词性从句讲解【完整版】

英语名词性从句讲解【完整版】
1、It depends on weather if she will come back on time .
2、I asked him if he could do me a favor .
If与whether的区别:
1、If不能引导放于句首的主语从句,而whether可以。 2、引导表语从句用whether,不用if。 3、引导同位语从句用whether,不用if。 4、whether可以引导从句作介词的宾语,不用if 。 5、whether or not 连在一起可以,但if不可以。而 “whether-----or not = if -----or not”
同位语从句:
定义:在复合句中充当同位语的句子。 同位语从句用来对其前面的抽象名词进行解释说明,被解释说明的词和 同位语在逻辑上是主表关系。 同位语常见名词:fact, suggestion, advice, idea, decision, news, thought, hope, belief, truth, doubt, promise, possibility, truth, warning, message, reason, report, question,explanation, wish, problem等。 常见的连接词:that, whether, what, who, how, when, where等。 用法: The thought that I want to buy my mother a birthday gift makes me excited.that 引导的同位语从句,解释说明 thought,从句不缺成 分 There is some doubt whether he will come. whether 引导同位语从句,if 不能引导同位语从句 we haven’t made the decision where we are going to spend our vacation. 有时同位语从句可以不紧跟解释说明的名词后面。 The news is surprising that he won the match.

高考英语名词性从句讲解

高考英语名词性从句讲解

高考英语名词性从句讲解I. 名词性从句概念名词性从句指的是由一个从句来充当名词的作用,如主语,表语,宾语,同位语等。

II. 名词性从句的分类1. 主语从句(1)概念:在整个句子中作主语。

(2)引导词:主语从句引导词分为三类,具体内容如下所示:①连词:that whetherthat:不同于其它的连词,它不充当句子的成分,只是单纯的连接词,通常不可以省略。

分句置于句首时,that绝对不可以省略。

eg. That price will go up is certain.That he finished writing the composition in such a short time surprised us all.whetherif 不能用在主语从句中,而是用whethereg. Whether we go by train or by boat makes no difference.Whether he’ll come here isn’t clear.②连接代词: what (ever) who(ever) whom(ever) which(ever)what(ever)当what引导主语从句作主语时,指物,谓语动词一般用第三人称单数,下面这个句型例外。

eg. What we need is more time and money.What we need are many more books.who(ever)/whom(ever))当who引导主语从句作主语时,指代某人。

在从句中作主语不能省略。

翻译是不能把它译成疑问句。

eg. Who will write the poem has not been decided yet.③连接副词: where(ver) when(ever) how(ever) why复合连接副词wherever, whenever, however, why引导主语从句,它们分别在从句中担任主语、宾语和状语,不能省略。

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名词性从句超详细讲解]【文字|双语| 教程】▼引导名词性从句的连接词可分为三类:连词(5个):that (本身无意义。

引导单一的宾语从句时that常可省略,但引导主语从句、表语从句、同位语从句时that通常不被省略)whether,if (均表示“是否”表明从句内容的不确定性)as if ,as though ([1] 均表示“好像”,“似乎”)以上在从句中均不充当任何成分连接代词(10个):what/ whatever, who/ whoever, whom/ whomever,whose/whosever, which/ whichever连接副词(7个):when/ whenever, where/ wherever, how/ however, 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.3. 在从句中做成分的连词.比较whether与if 均为"是否"的意思。

但在下列情况下,只可用whether:1. whether引导主语从句并在句首。

eg:Whether he can come to the party on time depends on the traffic.2. 引导表语从句。

eg:The question is whether we can get in touch with her.3.whether从句作介词宾语。

eg:I am thinking about whether I should quit my present job.4.if与whether都可以与or not 连用,但后面紧跟or not 时只能用whether。

We didn't know whether or not she was ready.(此时只能用whether)I wonder whether/if the news is true or not.(此时则二者都可以用)5.后面直接跟动词不定式时。

6.whether可引导从句,作主语、表语、同位语而if不行。

分类主语从句主语从句通常由下列词引导:1)从属连词that、whether、if 等;2)连接代词what、who、which、whatever、whoever、whom 等;3) 连接副词how、when、where、why 等。

that 在句中无词义,只起连接作用;连接代词和连接副词都在句中既保留自己的疑问含义、又起连接作用,在从句中充当主语的成分。

注:whom、who指人,what指物,whatever、whoever表示泛指意义。

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。

Where the English evening will be held has not yet been announced. 英语晚会将在哪里举行,还没有宣布。

有时为避免句子头重脚轻,常用形式主语it代替主语从句作形式主语放于句首,而把主语从句置于句末。

主语从句后的谓语动词一般用单数形式。

常用句型如下:(1)It be+ 名词+ that 从句It's a great pity that they didn't get married.他们没能结婚,真是令人惋惜。

It 's a good thing that you were insured.你保了险,这可是件好事。

(2)It be + 形容词+ that从句It's splendid that you passed your exam.你通过考试了,真棒。

It's strangethat there are no lights on.真奇怪,没有一盏灯是开着的。

(3)It be + 动词的过去分词+ 主语从句It's said that he has been there many times.据说他去过那儿很多次。

(4)It + 不及物动词+ that 从句[1]另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时,谓语动词要用虚拟语气“(should) +do”,常用的句型有:It is necessary (important, natural, strange, etc.) that …It is suggested (requested, proposed, desired, etc.) that…(5) it seems/happens+that 从句(6)众所周知的几种表达方式①It is known to us that.②As is known to us.③What is known to us is that.it引导的强调句结构:It is/was+被强调部分+that/who+句子其它部分。

eg:My father did the experiment in the lab yesterday evening.强调主语:It was my father who did the experiment in the lab yesterday evening.强调宾语:It was the experiment that my father did in the lab yesterday evening.强调时间:It was yesterday evening that my father did the experiment in the lab.(注意不用when)强调地点:It was in the lab that my father did the experiment yesterday evening.宾语从句名词从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,但如果从句是并列句时,第二个分句前的that不可省。

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。

注意:在demand、order、suggest、decide、insist, desire, request, command, doubt等表示要求、命令、建议、决定等意义的动词后,宾语从句常用“(should)+ 动词原形”。

I insist that she (should) do her work alone. 我坚持要她自己工作。

The commander ordered that troops (should) set off at once. 司令员命令部队马上出发。

2. 用who,whom, which, whose, what, when, where, why, how, whoever, whatever, whichever等关联词引导的宾语从句相当于特殊疑问句,应注意句子语序要用陈述语序。

I want to know what he has told you. 我想知道他告诉了你什么。

She always thinks of how she can work well. 她总是在想怎样能把工作做好。

She will give whoever needs help a warm support. 凡需要帮助的人,她都会给予热情的支持。

3.可运用it做形式宾语。

①动词make,find ,think,feel,consider,believe等后面有宾语补足语的时候,则需要用it做形式宾语,而将that宾语从句后置,结构:S.+vt+it+adj./n.+oc(宾语补足语)。

I think it necessary that we take plenty of hot water every day.我认为每天多喝开水是有必要的。

I feel it a pity that I haven't been to the get-together.我没去聚餐,感觉非常遗憾。

②有些动词带宾语从句时需要在宾语与从句前加it,这类动词主要是:hate,take,owe,have,see toI hate it when they talk with their mouths full of food.我讨厌他们满嘴食物时说话。

We take it that you will agree with us.我们认为你会同意我们的。

He will have it that our plan is really pratical.他认为我们的计划确实可行。

4.用whether或if引导的宾语从句,其主语和谓语的顺序也不能颠倒,仍保持陈述句语序。

此外,whether与if 在作“是否”的意思讲时在下列情况下一般只能用whether,不用if:①whether引导主语从句在句首时;Whether there is life on the moon is an interesting question. 月球上有没有生命是个有趣的问题。

Whether he can come to the party on time depends on the traffic.他能否准时参加派对得看交通情况。

②宾语从句放在句首表示强调时,只能用whether;Whether this is true or not, I really don't know.这是否真实,我也不知道。

③引导表语从句,只能用whether;The question is whether we can get in touch with her.问题是我们是否能联系上她。

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