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名词性从句讲与练

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名词性从句名词性从句的用法: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。

一、引导名词性从句的连接词1.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。

2. 从句的语序：在任何情况下，名词性从句都用陈述语序3.用Whether不用if的情况：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.（5）.Whether 与不定式连用I couldn't decided whether to do it. 我不能决定是否要做这事。

二、具体分类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。

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。

【典例1】(2009·上海卷)It is immediately clear ____ the financial crisis will soon be over.A. sinceB. whatC. whenD. whether【答案】D【解析】考查主语从句的用法。

该句的意思时：经济危机是否会很快结束是很明显的事情。

“是否”用whether表示，不能选when是因为从句中由soon这一实践状语。

【典例2】(2008·山东卷)_____ was most important to her, she told me, was her family.A. ItB. ThisC. WhatD. As【答案】C【解析】she told me是插入语，可删除。

what引导主语从句，在从句中充当主语。

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 is common knowledge that /It is a surprise that/ It is a fact that/ It is no wonder that/ It is a shame/a pity that等)（2）It + be + 形容词+ that从句（necessary, strange, important, possible，natural,essential，clear，quite等）（3）It + be + 动词的过去分词+ that从句（said, reported, decided, believed, suggested, ordered等）（4）It + 不及物动词+ that 从句（seem/ happen /turn out /occur/appears等）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 (strange, important, possible，natural,essential, etc.) that …It is a pity (a shame/a pity, no wonder, etc.) that…It is suggested (requested, proposed, desired, etc.) that…注意：主谓一致：从句作主语时，主句的谓语一般用单数形式；但what和who引导主语从句时，有时主句谓语的数应依据作表语的名词而定Who did this is still unknown. 这件事是谁做的还不知道。

What they need are books. 他们需要的是书。

What they need is love. 他们需要的是爱。

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，形容词及非谓语动词的宾语。

宾语从句需要注意的是：(1) demand, order, suggest, advise, insist, request 等表要求、命令、建议的动词后的宾语从句的谓语常用“(should＋)动词原形”；The teacher suggested that we (should) review it.老师建议我们复习一下它。

区别：His pale face suggested that he was ill and we suggested that he should see a doctor. 他苍白的脸表明他病了我们建议他去看病。

Tom insisted that he hadn’t done anything wrong and should be punished.Tom 坚持认为没做错事不该受罚。

(2) 若主句谓语是find, feel, consider, make, believe 等，常用it作形式宾语，而将宾语从句置于宾补后；We all find it important that we make a quick decision.我们都认为立刻作出决定很重要。

(3) 有些动词接从句作宾语时要用it作形式宾语，这类动词主要有hate, dislike, appreciate, enjoy, love, like ,take, depend on, relyon, count on, see to等。

I hate it when they talk with their mouths full of food.我讨厌他们满嘴食物时说话。

I'd appreciate it if you come to help me.如果你来帮我，我将不胜感激。

(4)介词后的宾语从句：一般情况下，介词后常接wh类连接词引导的宾语从句。

而except, but等少数介词后也可接that引导的宾语从句。

We are talking about whether we should admit students into our club.我们正在讨论的是我们是否应该让学生加入我们的俱乐部。

He was not conscious of what an important discovery he had made.他没有意识到他有了一个多么重要的发现。

The paper was perfect except that there were some misprints.除了一些印刷错误之外，这篇论文很好。

（5 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。

（6）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。

例如：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。

【典例1】(2008·北京卷)The companies are working together to create _______ they hope will be the best means of transport in the 21st century.A. whichB. thatC. whatD. who【答案】C【解析】create后为宾语从句，从句中they hope是插入语，可删除。

因为从句中缺少主语，所以用what引导该从句。

【典例2】(2009·全国卷Ⅰ) Could I speak to is in charge of International Sales please?A. whoB. whatC. whoeverD. whatever【答案】C【解析】考查名词性从句。

题干中介词to后面为宾语从句，从句中缺少主语，因此填whoever。

（7）注意宾语从句中的时态呼应，当主句动词是现在时，从句根据自身的句子情况，而使用不同时态。

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(完整版)名词性从句讲解及专项练习习题及其解答

(完整版)名词性从句讲解及专项练习习题及其解答

名词性从句讲解在复合句中起名词作用的从句叫做名词性从句。

它包括主语从句、宾语从句、表语从句和同位语从句。

名词性从句是中学阶段的一个重要语法项目，在历年的高考中几乎都涉及到，并且每年的命题各有变化。

分析历届高考试题名词性从句考查的焦点主要有以下六个方面1. 考查名词性从句的语序问题2. 考查引导词that与what的区别3. 考查it在名词性从句中作形式主语或形式宾语的用法4. 考查whether与if的区别5. 考查名词性从句中的疑问词+ever引导的名词性从句与no matter+疑问词引导的状语从句的区别6. 考查名词性从句的虚拟语气问题语法要点剖析一、名词性从句主语从句、表语从句、宾语从句、同位语从句，在整个句子中所起的作用，相当于一个名词。

因此，这四种从句通称为名词性从句。

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, why1. 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。

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。

高中英语名词性从句知识讲解以及练习题 附答案

高中英语名词性从句知识讲解以及练习题 附答案

高中英语名词性从句知识讲解以及练习题附答案一、名词性从句概述名词性从句是一种充当名词作用的从句，通常在主句中作主语、宾语、表语或同位语。

它通常由引导词（如that, whether, if, who, whom, whose, which, what等）引导，并且从句中含有一个主语和谓语。

名词性从句的种类有很多，包括主语从句、宾语从句、表语从句和同位语从句等。

下面我们将逐一介绍这些从句。

二、主语从句主语从句作为一个名词，通常位于句首，是一个句子，主要作用是作为主句的主语。

引导主语从句的词：What (什么)；Whether (是否)；If (是否)；That (那个)。

例句：What he said is true. (他说的是真的。

)Whether it will rain tomorrow is uncertain. (明天是否会下雨还不确定。

)If you go, I will go too. (如果你走，我也跟着走。

)That he is coming is good news. (他来的消息是好消息。

)注意：主语从句的谓语动词通常要用单数形式。

What引导的主语从句通常用来表示“事物”的概念。

三、宾语从句宾语从句是一个名词，通常位于主句的动词后面，作为主句的宾语。

它可以由常见的宾语从句引导词引导，例如whether, if, that, who, whom, whose, what, when, where, how等。

引导宾语从句的词：Whether (是否)；If (是否)；That (那个)；Who (谁)；Whom (谁)；Whose (谁的)；What (什么)；When (何时)；Where (何处)；How (如何)。

例句：I know that he is coming. (我知道他要来。

)I wonder if he is telling the truth. (我想知道他是否说了真话。

名词性从句讲解-思维导图-附练习题-高中英语语法-三大从句-语法讲解与练习

名词性从句讲解-思维导图-附练习题-高中英语语法-三大从句-语法讲解与练习

名词性从句讲解思维导图（附练习题）catch a cold。

Ⅲwhichever ‘无论哪个;无论哪些’，既指人，又指物. 可修饰名词与of连用Whichever book you borrow doesn’t matter to us。

Whichever of us fulfills his task will lend a hand to others。

定义：在复合句中充当宾语功能的句子叫宾语从句We can learn what we didn't know。

We find it necessary that we （should）practice English every day.★某些作表语的形容词，如sure，happy, glad，certain等之后可带宾语从句I am glad that you can come and help me.:①wish/would rather后的宾语从句中要用虚拟语气。

I wish I had finished my homework yesterday。

I’d rather you had been there yesterday②在表示建议,命令, 请求的词后面的宾语从句当中用should + V，可以省略His pale face suggested that he was ill so I suggested that he should goto see the doctor.He insisted that he was innocent and insisted that he should be set free.③注意it作形式宾语的结构We all thought it a pity that we had missed the lesson。

I took it for granted that they were not coming.④ that一般不接介词宾语，偶尔可作except， in的宾语；其它介词后面需用it作形式宾语He differs from his roommates in that he devoted his spare time toreading.He knows nothing about Jim except that he is from London。

高中名词性从句全面讲解及练习含答案

高中名词性从句全面讲解及练习含答案

高中英语讲义---- 名词性从句（主从、表从、宾从，同从）1，陈述句做名从用连词that + SV, that 表主句确定从句完好，不做成分。

主从可用it 做形式主语，宾从第一个that 可省略。

You study hard.主从：That you study hard is known to us.= It is known to us that you study hard.表从：My opinion is that you study hard .宾从：I think (that) you study hard. …and that (不能省略)….同从：My opinion that you study hard is known to us. *比拟同从和主从！●一般抽象名词后对其进展说明和说明的完好句子就是其同位语从句，不完好就是定语从句。

I appreciate your idea that we have an exam every week. （that后完好—同从）I appreciate your idea that you came up with last time.（that后不完好---定从）2，一般问句做名从用连词whether(是否) + SV，whether表主句不愿定从句完好，宾从中可用if（介词后或宾从后有or not时只用whether）。

Does your friend like English ?主从：Whether your friend likes English isn’t clear .=It isn’t clear whether your friend likes English.表从：My question is whether your friend likes English.宾从：I don’t know whether/ if your friend likes English.同从：My question whether your friend likes English isn’t clear.3, 特殊问句做名从用疑问词（连词）+ SV, 疑问词做主语时干脆+谓语。