下载文档原格式
名词性从句一、名词性从句的连接词1．连接词that，whether和if(1)这三个连词在句中只起连接作用，不作句子成分，that本身无意义，有时可省略，whether和if本身有意义，均不能省略。
that和whether可以连接所有的名词性从句，而if引导名词性从句时只能引导宾语从句或不在句首的主语从句。
(2)whether与if的用法比较二者均可作“是否”讲，都可以引导名词性从句，引导宾语从句时可以互换。
I don’t know whether/if he’ll attend the meeting. 我不知道他是否会参加会议。
在下列情况下，常用whether，不用if。
①whether引导从句可以放于句首。
Whether he comes or not makes no difference. 他来不来都一样。
②whether可引导表语从句和同位语从句，if不可。
The question is whether it is worth trying. 问题是这是否值得一试。
The question whether he should join the team has not been decided upon. 他是否入队的问题还没决定。
③whether可以作介词宾语，if则不可。
I haven’t settled the problem of whether I’ll lend him the money. 关于是否借给他钱的问题，我还没做决定。
④whether后可以加不定式，if不可。
He didn’t know whether to get married or to wait. 他不知道是结婚还是再等等。
⑤可以用whether...or引导让步状语从句，意为“无论，不论”，if则不可。
Whether it rains or snows，I don’t care. 无论下雨还是下雪，我都不在乎。
三、名词性从句(一)名词能做什么成分？1.The movie looks attractive.主语2.I appreciate his mother.宾语3.Gump is a man.表语4.I enjoy the part,the end.同位语（同样位置的语。
作文中只要见到名词，都可以在他后面再加一个名词，作为他的同位语。
）Teamwork ,a Chinese conventional virtue ,plays a crucial role on the road to glories.(二)什么是名词性从句？1.什么是从句：引导词加主语加谓语2.什么是名词性从句：名词在句子中能够充当什么成分，从句在句子中也能充当什么成分，这就是名词性从句。
名词性从句一共包括四类：主语从句，宾语从句，表语从古和同位语从句1)What I saw is attractive.2)I appreciate what she said.3)Gump is who we should learn from.4)I enjoy the part that a feather is flying in the sky.(三)名词性从句的引导词1.That He has got divorced is my fault.2.Whether he Has got divorced is obvious.3.Who he will marry is a secret.名词性从句的引导词是按照从句的类型分的类，一共将引导词分成三类：1.That：当从句是陈述句时。
并且that在从句中没有意思也不充当任何成分，不可去掉2.Whether：当从句是一般疑问句时。
Whether在从句中依然不充当任何成分，但是意思可以翻译成“是否”。
3.所有的特殊疑问词：当从句是特殊疑问句时。
所有引导词在句子中都充当了本来充当的成分，并他具有确定的的意思，并且英语中所有的从句都应该是陈述句的形式，也就是引导词加主语加谓语的形式。
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。
语法复习三：名词性从句在前面我们已经知道了什么是句子.我们可以这样解释什么叫从句:在一个句子的前面加上一个连接词,这个句子就变成了从句.如果这个从句做了主语,它就是主语从句.其它的以此类推.注: 1.特殊疑问句本身可以做从句,它不需要加连接词.2.所有的从句要使用陈述语序. 陈述语序: 句子第一个词永远是主语;第二个词可能是情态动词\助动词等加上动词,或者是动词本身.名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。
因此，名词性从句分为主语从句、表语从句、宾语从句和同位从句。
名词性从句,顾名思义,它具有名词性.所以可以作主语,宾语等等.回忆一下句子成分那一章（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，在从句中担任成分，如主语、表语、宾语、或定语等。
2、连接副词：when, where, why, how。
有词义，在从句中担任成分，作状语。
3、连接词：that, whether, if, as if, that（二）主语从句1、主语从句在复合句作主语。
Who will go is not important.2、用it作形式主语，主语从句放在句末。
It doesn’t matter so much whether you will come or not.3、that引导主语从句时放在句首时，不能省略。
That he suddenly fell ill last week made us surprised.实用例句:Is it true that he will be punished seriously by the headmaster?Does it make any difference who bought these gifts?How strange it is that these children are so quiet!注意: 表示是否,只能使用whether.（三）表语从句1、表语从句在复合句中作表语，位于系动词之后。
从句可分为三类:即名词性从句、形容词性从句（即定语从句）和副词性从(即状语从句）。
引导从句的词称作关联句。
一、名词性从句引导这些名词性从句的关联词包括：从属连词：that，if, whether连接代词：who, whoever whom, whomever ，which ,whichever ，what ,whatever ，whose 连接副词where, when, why, how。
其中, 从属连词只起连接作用，在从句中不充当任何句法成分，而连接代词和连接副词既起连接作用, 在从句中又充当一定的成分。
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” 例：Whether he will come is not clear。
The fact is that he didn't go to the dinner party。
I don't know if he will attend the meeting。
1. 在含有主语从句的复合句中，为保持句子平衡, 常用it作形式主语,而将真正的主语从句置于句末。
That—从句作主语通常用it作先行词，而将that—从句置于句末，例如：It is quite clear that the whole project is doomed to failure。
很清楚，整个计划注定要失败。
It’s a pity that you should have to leave.你非走不可真是件憾事.用it作形式主语的that—从句有以下四种不同的搭配关系:A It + be +形容词+ that—从句例:It is necessary that…有必要……It is important that…重要的是……It is obvious that… 很明显……B. It + be + —ed 分词+ that-从句例如：It is believed that…人们相信……It is known to all that…从所周知……It has been decided that… 已决定……C。
高三英语专题复习要点回顾与精练专题04 名词性从句一【语境检测】用适当的连接词、连接代词或链接副词填空使得文章的语意通顺完整。
Light’s Many Colors多彩的光1_______white light is made up of different colors was proved through Newton’s work.The English scientist, Isaac Newton (1643-1727), did a lot of experiments to study light. 2________interested him was the color of light. 3_______light is “white”or “colorful”was still unknown to the people of his time. Few doubted the common knowledge 4_______white light was “pure” light without colors.The question is 5_______he did the experiment. It is quite simple. He allowed a beam of light to pass through a piece of triangular(三角形) glass and then fall on a white wall.6_______he saw on the wall was a band of colors: red, orange, yellow, green, blue, indigo and violet. Were the colors produced by the glass? NO. When Newton passed the light that had come out of the triangular glass through a second triangular glass, all he got was white light.7_______light is colorful was still a question. However, 8_______the colors came from was answered through the experiment. It is certain9_______the colors of light are from the light itself, not form the glass or anything else. The experiment showed 10_______ light had to be looked upon in a new way. Man need to learn more about light.1.That2.what3.Whether4. That5.how6.What7.Why8.where9.that 10.that二【知识导图】三、名词性从句常用关联词的选择三、易混淆的引导词的区别类别说明what与that的区别（见考题1，2）what作复合关系代词并表示“所……的(东西)”之意,相当于“the +名词+ that /which”或“all that”,可指代不确定的事物,在从句中作主语、宾语或表语;而that在名词性从句中只起引导作用,不表达任何意思。
高考语法专题：三大从句（名词性从句、定语从句、状语从句）（学生版）一、名词性从句种类作用热身训练·先练后背主语从句在复合句中作主语，相当于名词，一般置于谓语之前，也可用it作形式主语，主语从句放在主句之后①__________he will come or not doesn’t mattermuch.②__________comes here will be welcome.③It is certain________he will come.表语从句在复合句中作表语，相当于名词，位于系动词之后④It looks________it is going to snow.答案as if宾语从句在复合句中作宾语，相当于名词⑤He asked me________team could win the game.同位语从句放在名词(news, problem, idea,suggestion, advice, thought, hope, fact等)之后，表明其具体内容⑥You have no idea________worried we are.⑦The fact________he lied again greatly surprised us.引导连词that 引导连词whether/if 连接代词what, who, whom, whose,which, whatever, whoever,whichever,whomever等连接副词where, when, why, how,whenever, wherever,however等主语从句不能省略that，不作成分，没有词义用whether，不用if。
不作成分，“是否”之意what, whatever, which,whichever用来指物，who,whom, whoever,whomever用来指人。
连接代词在名词性从句中作主语、宾语、表语或定语等连接副词在名词性从句中作状语。
英语三大从句LELE was finally revised on the morning of December 16, 2020复合句【语法要点】复合句是由一个主句加一个或几个从句所构成的句子。
从句只用作句子的一个成分，不能独立。
根据从句在句子中的作用，可分为名词性从句、定语从句和状语从句三类。
（一）名词性从句名词性从句包括主语从句、表语从句、宾语从句、同位语从句。
其关联词有连接词that、if、whether；疑问代词who、what、which和疑问副词when、where、how、why等。
1）if不能引导表语从句。
连接代词who、what、whose、which不能引导同位语从句。
2）有时as、as if/though、because也可以引导表语从句，能跟表语从句的谓语动词一般为系动词be、seem、look等。
例如：Things are not always as they seem to be.事情并不总是像表面上看来的那样。
It looks as if it were going to rain. It is because you eat too much.3）介词宾语不可以用which来引导，而要用what来引导。
例如：We can learn what we did not know. He will talk to us about what he saw in the .4）连词that引导的名词性从句除能用在except、but、in后之外很少作介词的宾语，。
其它一些介词的宾语从句如果由连词that引导，则需用it先行一步作形式宾语。
例如：He is a good student except that he is careless.You may depend on it that they will support you.5）若主句谓语动词是及物动词make、find、think、see、hear等，则把宾语从句置于宾语补足语之后，用it作形式宾语。
