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高考英语 名词性从句讲与练

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名词性从句在复合句中起词名词作用的句子叫名词性从句 (Noun Clauses）。

名词性从句的功能相当于名词，可分别作主句的主语、表语、宾语和同位语。

因此，名词性从句可分为主语从句、表语从句、宾语从句和同位从句。

（一）引导名词性从句的连接词1）连接代词： who, whose, whom, what, which有词义，在从句中必须充当句子成分，如主语、表语、宾语或定语等。

2）连接副词： when, where, why, how有词义，在从句中必须充当成分，只能作状语。

3）连接词： that, whether, if, as ifthat 无词义，在从句中不充当成分，做宾语时可省略；if ，whether，as if虽有词义，但在从句中不担任成分。

注意：连接代词与连接副词在句中不再是疑问词，因而从句中谓语不用疑问式。

连接代词与连接副词在从句充当句子成分，连接词whether 和if（是否），as if（好象）在从句中不充当句子成分，只起连接作用。

根据句义，如果连接代词与连接副词，whether、if 和as if都用不上时，才用that作连接词（that本身无任何含义）。

4）连接代词：whatever, whoever, whomever, whichever5）语序名词性从句都必须与陈述句语序相同，即“主语＋谓语”。

（二）主语从句:在复合句中其语法作用是主语的句中，叫主语从句。

1）主语从句位于句首e.g. （1）That he finished writing the composition in such a short time surprised us all.（2）Whether we will go for an outing tomorrow remains unknown.(注意：不能把whether改为if，因为if不能引导主语从句)（3）Whatever you did is right.（4）Who will be our monitor hasn't been decided yet.（5）What caused the accident remains unknown.（6）Which of the two is better remains to be seen.（7）When we will start the work is important.2）为了避免句子头重脚轻，用it作形式主语，主语从句放在句末。

e.g.（1）It doesn’t matter so much whether you will come or not.（2）It is true that he has made a very important discovery in chemistry.（3）It is a pity that we won't be able to go to the south to spend our summer vacation.（4）Is it likely that it will rain in the evening ?3）it 作形式主语的主语从句有时为了考虑句子平衡，通常在主语从句处使用形式主语it，而将真正的主语从句移至句末。

这分四种情况：(1) 对于以连词that引导的主语从句，通常用形式主语it替代主语从句：< a > It is + 名词 + 从句It is a fact that… 事实是……； It is good news that … ……是好消息；It is a question that … ……是个问题；It is common knowledge that … ……是常识类似的名词还有：a pity；a wonder；a good thing； no wonder； surprise等。

It is a mystery to me how it all happened.It is common knowledge that the whale is not a fish.It is no surprise that Bob should have won the game.< b > It is +形容词 + 从句It is necessary that … 有必要……；It is clear that … 很清楚……；It is likely that … 很可能……；It is important that … 重要的是…… 类似的形容词还有：strange; natural; obvious; true; good; wonderful; possible; unlikely; unusual; certain; evident; surprising; interesting; astonishing, etc. It is doubtful whether she will be able to come.It seems obvious that we can not go on like this.It is necessary that you（should）master the computer.需要注意的是这类主语从句中，谓语动词很多为“（should）＋动词原形”，即要用虚拟语气。

< c > It is +过去分词 + 从句It is said that … 据说……；It is reported that … 据报道……；It has been proved that … 已证明……；It must be proved that… 必须指出……类似的过去分词还有：known; expected; believed; thought; hoped; required;suggested; demanded; etc.例如：It is said that honesty is the best policy.It is said that thirteen is an unlucky number.It is reported that over 300 million people in China are suffering from near-sightedness.It is known to all that the earth is round.高考题链接：1. It never occurred to me___you could succeed in persuading him to change his mind.(陕西高考)A．which B．what C．that D．if2. It's obvious to the students________they should get well prepared for their future.(天津卷)A．as B．that C．which D．whether3. ________some people regard as a drawback is seen as a plug by many others.( 北京)A．Whether B．What C．That D．How4. It is uncertain________side effect the medicine will bring about，although about two thousand patients have taken it.(浙江)A．that B．how C．what D．whether （三）表语从句：在复合句中作表语的完整句子，位于be动词或系动词之后，说明主语是什么或者怎么样。

e.g.（1）The question was who could go there.（2）He has become what he wanted to be ten years ago.（3）She has remained where I stood yesterday for an hour.（4）His suggestion is that we should stay calm.（5）It seems as if it is going to rain.（6）The question is whether the enemy is marching towards us. (注意：不能把whether改为if，因为if不能引导表语从句)（7）What she couldn’t understand was why fewer and fewer students showed interest in her lessons.（四）宾语从句：宾语从句在复合句中作宾语，引导宾语从句的连词that一般可省略。

e.g. I hope (that) everything is all right.1）介词之后的宾语从句，不可用which或if连接，要分别用what或 whether。

e.g. I’m interested in whether you’ve finished the work.I’m interested in what you’ve said.2）whether与if都可以引导宾语从句，常可互换，但下面情况不能互换。

①宾语从句是否定句时，只用if，不用whether。

e.g. I wonder if it doesn’t rain.②宾语从句中的whether 与or not直接连用，就不能换成if。

e.g.I don’t know whether the report is true or not.注意：介词后的宾语从句要用whether引导，whether 可与不定式连用。

whether也可引导主语从句、表语从句、同位语从句，以上均不能换成if。

但引导条件从句时，只能用if，而不能用whether。

e.g. It depends on whether we have enough time.They don’t know whether to go there.Please come to see me if you have time.（五）同位语从句：在复合句中作某一抽象名词的同位语，一般位于该名词之后。

（如：promise，message，doubt，belief，reason，possibility，conclusion，thought，order，question，problem，report，rumor，hope，truth，news，fact，idea，suggestion，evidence 等）e.g. I have no idea when he will be back.The fact that he had not said anything surprised everybody.I've come to the conclusion that it won't be wise to do so.有时为了保持句子的平衡，同位语从句有时和前面的名词分开。

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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。

高中英语高考复习名词性从句讲解与练习

高中英语高考复习名词性从句讲解与练习

高中英语高考复习名词性从句讲 解与练习
He has told me what happened.
What you said is not true. The fact is that he has been fired.
The fact that he has been fired is not known to his wife.
5. I’m wondering _h_o__w_/_w__h_e_r_e_ we can get some food and drinks before we are starved to death.
7. Now I know ___w_h_y___ he hates me. He thinks I gave him away to the teacher.
My trouble is __th_a_t__ my daughter doesn’t listen to me. 2.如果表语从句是一个一般疑问句，连词用 whether. 一般不用if.
The question is _w_h_e_t_h_e_r_ he will accept our offer.
-D--e--s--p--it-e---h--e--u--s--e--d--t-r-a--d--i-t-i-o-n--a--l-m---a--t-e--r-i-a-l-s--,-
__H_o_w___ can we solve the problem is a difficult problem. _H__o_w__m__u_c_h__ we should pay for the spring outing is not known. __W__h_y__ he committed suicide is that his firm went bankrupt.
高考英语语法名词性从句讲与练

高考英语语法名词性从句讲与练

高中英语语法之名词性从句在句子中起名词作用的句子叫名词性从句(Noun Clauses）。

名词性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，名词性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引导名词性从句的连接词可分为三类：连词：that（无任何词意）whether,if（均表示“是否”表明从句内容的不确定性）as if ,as though （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：what, whatever, who, whoever, whom,whose, whichever,whomever连接副词：when, where, how, why,how many,how much,how often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，只可用whether：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.二. 主语从句1、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，wh ether，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。