名词性从句连接词的选用
名词性从句知识结构图解
名词性从句定义：在句子中起名词作用的句子叫名词从句(Noun Clauses). 名词性从句包括主语,宾语,表语,同位语从句.h,等.在从句等在从句中做状语成分。
)I don’t know which book I should choose. (从句中缺定语)That she was chosen made a great stir (轰动) in her school.: ①it作形式主语的that-从句有以下四种不同的搭配关系：形容词+ that-从句It is necessary / important that….…是有必要/ 重要的….分词+ that-从句It is universally acknowledged that../ It is known that…众所周知…名词+ that-从句It is common knowledge/ a fact that………是常识/事实不及物动词+ that-分句It happens that…碰巧.. / It occurs to sb.that…突然想起……主语从句②It 作形式主语和it引导强调句的比较强调句：It is in the morning that the murder took place.(去掉该结构后,句子成分完整)主语从句：It was a pity that you shouldn’t go to see the film.（在句子中作主语成分）③whatever /whichever/ whoever引导主语从句的区别Whatever 是what的强调形式表示“无论什么”相当于anything that…Whatever / Anything that she does is wrong.whoever 是who的强调形式，表示‘无论谁’相当于anyone who….Whoever / Anyone who walks around in such a heavy rain will catch a cold.whichever ‘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.wish/would rather后的宾语从句中要用虚拟语气。
名词性从句
作状语
1.Study the underlined noun clauses in these sentences. In your opinion ,what roles do these clauses play in the sentences
What attracts people to California is its pleasant climate
to do
f. whether 后紧跟or not 引 导宾语从句时不用if.
本节课语法项目总结： 一、名词性从句的语序——陈述语序 二、名词性从句连接词的选用
• Homework
1. 整理语法笔记
2.独立或者小组讨论完成课本第5页的第4 小 题。
3.认真思考一下同位语与定语从句之间的区 别？
携手共进，齐创精品工程
7.The doctor can hardly answer the question
___C___ the old man will recover soon. 8. I don’t know ____C___ to go.
只用whether不用if 的情况： a. 主语从句中 b. 表语从句中 c. 同位语从句中 d. 介词后的宾语从句中 e. Whether后直接跟不定式
F 1.She pretended D 2.It is not surprising A/E 3.Why she didn't tell you herself C 4.I wonder G 5.The trouble was B 6.It is essential
A.Is what I want to know. B.that you get a visa befow you travel to the
英语名词性从句的连接词选用
名词性从句的连接词选用名词性从句的连接词选用名词性从句包括主语从句，表语从句，宾语从句和同位语从句引导同位语从句的词通有连词 that ，whether ，连接副词，连接副词how,when,where 等。
（注：if 不能引导同位语从句。
）。
在各种考试中，其最主要的考查内容为连接词的选用。
名词性从句的连接词可细分为以下四种：（1）以that 来引导从句；（2）以whether/if 引导从句；（3）以特殊疑问词引导从句；（4）以关系代词/副词引导从句。
副词引导从句。
一、以that 引导从句引导从句当从句的意思已完整时，名词性从句用that 引导，that 在从句中不作任何句子成分，仅起连接作用。
如：接作用。
如：It is certain that he will do well in his new job. （主语从句）（主语从句）Do you know that he has been admitted to Beijing University? （宾语从句）（宾语从句）My decision is that we are to start at 6 tomorrow morning. （表语从句）（表语从句）The news that our team had won the game excited everybody. （同位语从句）（同位语从句） 当用that 引导从句时，需注意以下情况：引导从句时，需注意以下情况：1．在主语从句中，that 一般不可省略，尤其是当主语从句位于句首时，它绝对不可省略。
如：如：That our team had won the game was good news to us.2．在宾语从句中，that 可省略。
但当句中有两个并列的宾语从句时，引导第二个宾语从句的that 不可省略。
如：不可省略。
如：Everybody knows (that) the earth goes round the sun. Everyone knew what happened and that she was worried.3．当句子是以it 作形式宾语时，引导宾语从句的that 不可省略。
名词性从句
名词性从句一、名词性从句的连接词引导名词性从句的连接词有三类：连接词、连接代词和连接副词。
1. 连接词有：that（本身无意义），whether/if （是否）。
连接词只起到连接作用，在从句中不作任何成分。
2. 连接代词：who，whom，whose，which，what，whatever，whoever等。
它们不但起到连接作用，还在句中充当主语、宾语、定语、表语等成分。
3. 连接副词：when（= the time when），where（=the place where），how（=the way/that in which）, why (=the reason why ), 它们不但起到连接作用，还在从句中作状语。
注意：what与that引导名词性从句的区别1. what在名词性从句中可充当主语、宾语、表语，意义相当于the thing(s) that, 引导主语从句时，其谓语动词的单复数依句意而定。
①What the lecturer said is very valuable.②We wonder what he will do next.2. that 引导名词性从句不作任何成分，无意义。
引导主语从句时，常用it作形式主语，谓语动词用单数，引导宾语从句时，that常被省略。
①That he will refuse the offer seems unlikely.②We have found (that) all the tickets have been sold out.③It is a pity that you missed such a fine talk.二、主语从句的基本用法1. that引导的主语从句既可放在句首，也可放在句尾，that只起到连接作用，无词义，在从句中不作成分，一般不能省略。
That we invited to a concert this evening is good news to us.= It is good news to us that we invited to a concert this evening.2. if/whether 引导的主语从句既可放在句首，也可放在句尾；引导的只能放在句尾，前面需要用it作形式主语。
名词性从句中的语态和连接词选择
名词性从句中的语态和连接词选择名词性从句是指在句子中作名词性成分的从句，充当主语、宾语、表语或同位语等。
在使用名词性从句时，我们需要注意选择适当的语态和连接词以确保句子的语法正确性和意思表达清晰。
本文将讨论名词性从句中的语态和连接词的选择，以帮助读者正确运用名词性从句。
一、主语从句主语从句在句子中充当主语，常常以that引导，也可以用连接词whether/if引导。
而语态选择则要根据从句与主句的主谓关系来确定。
1. 当主句谓语动词是及物动词或动词短语时，从句采用不定式形式，即使用动词不定式作连接词。
例如："It is important for us to study hard."（我们用尽力学习很重要。
）"It is best for him to leave now."（他最好现在离开。
）2. 当主句谓语动词是指示性动词，如advise, demand, insist, order, recommend, request, suggest等时，从句采用虚拟语气，即使用should + 动词原形作连接词。
例如："It is necessary that he should attend the meeting."（他应该参加会议。
）"It is important that she should exercise regularly."（她应该定期锻炼。
）二、宾语从句宾语从句在句子中充当宾语，常常以that引导，也可以用连接词whether/if引导。
而语态选择则要根据从句与主句的主谓关系来确定。
1. 当主句是及物动词时，从句采用与主句相同的语态。
例如："I believe that he can pass the exam."（我相信他能通过考试。
）"She said that she would come tomorrow."（她说她明天会来。
(完整版)名词性从句用法归纳
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）。
名词性从句在复合句中能担任:主语、宾语、表语、同位语、介词宾语等。
名词性从句分为：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：1、从属连词（5个）：（1）that无词义，在从句中不做成分，在宾语从句或表语从句中that有时可以省略（2）whether，if 有词义，在从句中不做成分（whether，if均表示“是否”之意，表明从句内容的不确定性）不可以省略（3）as if, as though （均表示“好像”，“似乎”之意）在从句中不做成分2、连接代词（9个）：what, whatever, who, whoever, whom, whomever, whose, which, whichever，有词义，在从句中做成分，不可以省略（who what which 在从句中做主语、宾语、其中what 指代没有范围的事物，which指代有范围的事物，表“选择哪一个”whom做宾语whose 做定语）3、连接副词（7个）：when, where, how, why, whenever, wherever, however有词义，在从句中做状语，不可以省略4、that省略的情况：（1）定语从句中做宾语（2）that引导宾语从句时（3）that引导表语从句时（4）主语从句中it做形式主语，that从句置于句末时5、that不可省略的情况：（1）定语从句中做主语（2）由that引导主语从句放句首时（3）that引导同位语从句时（4）宾语从句中i it做形式宾语，真正的that宾语从句中that不可以省略ii 一个句子有两个或多个并列的宾语从句时，引导第二个和以后几个句子中的that不可以省略iii 与动词相隔的宾语从句，不可以省略iv that引导的宾语从句放在句首时，不可以省略二. 主语从句1、主语从句：作句子主语的从句叫主语从句。
巧选名词性从句连接词
巧选名词性从句连接词作者：籍万杰来源：《高中生学习·高二版》2016年第02期在句子中起名词作用的句子叫名词性从句。
它在复合句中能担任主语、宾语、表语、同位语等，因此根据其在句中不同的语法功能，名词性从句可分别称为主语从句、宾语从句、表语从句和同位语从句。
高考主要考查连接词的使用，解题时采用成分分析可以快速锁定使用的连接词。
[用连接代词]当名词性从句中缺少主语、宾语、表语或定语时，选用连接代词。
常用的有what，who （m），whoever，which，whose等。
what根据不同句子的意思可以灵活翻译成“……的（话、东西、地方、时候、样子等）”；who具有疑问意义，意思是“谁”；whoever没有疑问意义，意思是“……的任何人”，相当于anybody who；which意思是“哪一个”；在句中作定语时用whose。
例1 （2015浙江卷）If you swim in a river or lake， be sure to investigate is below the water surface. Often there are rocks or branches hidden in the water.解析 what。
句意为：如果你在河里或湖里游泳，一定要调查清楚水面下有什么东西。
通常总有一些石头或树枝藏在水里。
动词investigate后面接的是宾语从句。
分析宾语从句的成分可以发现，空格所做的成分是主语。
名词性从句中缺少主语或宾语并且指物用what引导。
例2 （2010重庆卷）To improve the quality of our products， we asked for suggestions had used the products.解析 whoever。
句意为：为了提高产品质量，我们向使用过这些产品的人征询建议。
该题中动词ask常用ask sb. for sth.，因此，空格后应该是ask的宾语，从句后置。
737编号高中名词性从句讲解及练习
名词性从句主语从句，表语从句，宾语从句和同位语从句在复合句中的作用相当于名词，因此这四种从句统称为名词性从句。
这四种从句与主句间不用逗号。
一．名词性从句连接词的选用可分为三类：1.that在名词性从句中只起连接作用，不充当成分，也没有实际意义。
That he will come is certain.I think that he’ll be all right in a few days.The fact is that I have never been there.The fact that she had not said anything surprised all of us.2.whether/if 在名词性从句中有“是否”之意，但不充当成分。
附Whether/if区分：在宾语从句中可互换，但介词和discuss后的宾语从句用whether; 其它名词性从句用whether；可以说whether to do 但不能说if to do ;可说whether / if……or not, whether or not ，不能说if ornot.Whether she’s coming or not doesn’t matter too much.I wonder whether/ if it is true.The question is whether it is worth doing.They asked me the question whether the work was worth doing.I don’t know whether or not they will come.(不能用if or not)I don’t’ know if / whether they will come or not.另外别忘了if可引导条件状语从句。
试比较：Please let me know if you want to go.Please let me know whether you want to go.3.其它连接词的选用遵循：“缺什么，补什么”的原则。
名词性从句
名词性从句由一个主句和一个或一个以上的从句构成的句子叫复合句。
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。
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（2）It + be + 形容词+ that从句（3）It + be + 动词的过去分词+ that从句（4）It + 不及物动词+ that 从句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 a pity (a shame, no wonder, etc.) that…It is suggested (requested, proposed, desired, etc.) that…2. 宾语从句名词句用作宾语的从句叫宾语从句。
名词性从句 连接词
名词性从句连接词的选择连接词that，whether和if连词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只能引导宾语从句或者主语从句。
whether可作介词宾语，后面可以接动词不定式，有时可加“or not，or，or no”，而if则不能。
whether引导的句子可以放在复合句的句首，而if引导的从句只能放在主句谓语动词后面引导主语从句时亦不可居于句首。
连接宾语从句时，if和whether可以互换。
动词wonder可以接if或whether从句，也可以接that从句。
动词doubt（怀疑，不知道）的肯定句接if或whether从句，但否定式don't doubt 和疑问式Do you doubt要接that从句（doubt作“不信”解，表示强烈的不相信时，可接that从句）。
这三个连词在句中只起连接作用，不担任句子成分。
例如：That he survived the accident is a miacle.他在这场事故中幸免于难，真是奇迹。
（主语从句）Whether(不用If) she comes or not makes no difference.她来不来都没有关系。
（主语从句）I don't know whether(可用if) he will attend the concert.我不知道他是否去参加音乐会。
(宾语从句)The problem is (that)we can't get there early enough.问题是我们不能很早到达那里。
（表语从句）I haven't settled the question of whether(不用if) I'll lend him the money.我还没有决定是否把钱借给他。
（宾语从句）He didn't know whether(不用if) to get married or to wait.他不知道是现在结婚，还是等等再说。
名词性从句
注意：引导表语从句的连接词一般不 省略。
1.be, seem, look, appear, sound等 动词后均可跟表语从句： My suggestion is that we should go shopping. It seems that it is going to rain.
4.The question is how you should ------do next. what
宾语从句 在复合句中充当宾语的句子叫做宾 语从句。 1.作动词宾语
I don’t know that you will come here. I wonder what he has done.
I wonder whether it is true or not.
（2）介词后面的宾语从句用whether， 不用if Everything depends on whether the situation will improve.
（3）引导主语从句和表语从句用 whether,不用if Whether we’ll go depends on the weather. The question is whether it is worth doing.
badly.
4、It + seem, happen, appear等不及物
动词 + that从句。
(1) It seems that Alice is not coming to the party at all. (2) It happened that I was out that day.
英语名词性从句用法大全
英语名词性从句用法大全名词性从句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，名词性从句厅分为主语从句、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 无词义，在从句中不担任成分，有时可省略；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句，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）。
（二）主语从句1、主语从句在复合句作主语。
e.g. Who will go is not important.2、用it作形式主语，主语从句放在句末。
e.g. It doesn’t matter so much whether you will come or not.3、that引导主语从句时，不能省略。
e.g. That he suddenly fell ill last week made us surprised.（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。
e.g. The question was who could go there.2、引导表语从句的连接词that有时可省去。
e.g. My idea is (that) we can get more comrades to help in the work.（四）宾语从句1、宾语从句在复合句中作宾语。
2023年中考英语复习名词性从句讲解
名词性从句（复合句）一、主语从句1、语序：主语从句要求使用陈述句语序，而非一般疑问句语序。
2.连接词的选用（1）that 和what 的选用that 和what 都可引导主语从句。
what 除起连接作用外，还在名词性从句中充当某些成分，可作从句的主语、宾语或表语。
而that 在名词性从句中不充当任何成分，无词义，只起连接词作用。
（2）if 和whether 的选用引导主语从句，不能用if，只能用whether。
（3）其它连接代词和副词的选用根据主语从句的具体意义，正确的选择who, which, when, where, why, how 等连接词，这些连接词既有疑问含义，又起连接作用，同时在从句中充当各种成分。
（4）whatever / whoever 的功用whatever, whoever 在主语从句中不含疑问意义。
它引导主语从句，并在从句中作主语、宾语、表语等。
whatever = anything that; whoever = anyone who。
要注意和whatever, whoever 引导的让步状语从句的区别。
Eg: Whoever breaks the law should be punished.（主语从句）＝Anyone who breaks the law should be punished.Whoever breaks the law, he should be punished. （让步状语从句）＝No matter who breaks the law, he should be punished.3.it 构成的主语从句（1）由连词that 引导的主语从句，在大多数情况下会放到句子的后面，而用代词it 作形式主语。
谓语是seem, appear, be certain, be a pity, be a wonder, be one's hope, be likely 等词或短语。
名词性从句用法归纳
名词性从句用法归纳 Document number：PBGCG-0857-BTDO-0089-PTT1998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）。
名词性从句在复合句中能担任:主语、宾语、表语、同位语、介词宾语等。
名词性从句分为：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：1、从属连词（5个）：（1）that无词义，在从句中不做成分，在宾语从句或表语从句中that有时可以省略（2）whether，if 有词义，在从句中不做成分（whether，if均表示“是否”之意，表明从句内容的不确定性）不可以省略（3）as if, as though （均表示“好像”，“似乎”之意）在从句中不做成分2、连接代词（9个）：what, whatever, who, whoever, whom, whomever, whose, which, whichever，有词义，在从句中做成分，不可以省略（who what which 在从句中做主语、宾语、其中what 指代没有范围的事物，which指代有范围的事物，表“选择哪一个”whom做宾语whose 做定语）3、连接副词（7个）：when, where, how, why, whenever, wherever, however有词义，在从句中做状语，不可以省略4、that省略的情况：（1）定语从句中做宾语（2）that引导宾语从句时（3）that引导表语从句时（4）主语从句中it做形式主语，that从句置于句末时5、that不可省略的情况：（1）定语从句中做主语（2）由that引导主语从句放句首时（3）that引导同位语从句时（4）宾语从句中i it做形式宾语，真正的that宾语从句中that不可以省略ii 一个句子有两个或多个并列的宾语从句时，引导第二个和以后几个句子中的that不可以省略iii 与动词相隔的宾语从句，不可以省略iv that引导的宾语从句放在句首时，不可以省略二. 主语从句1、主语从句：作句子主语的从句叫主语从句。
英语中名词性从句的用法
英语中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, which. Whichever, whomever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.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。
引导名词性从句的连接词
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⼀、名词性that-从句主语：That she is still alive is her luck. 他还活着全靠运⽓。
宾语：John said that he was leaving for London on Wednesday. 约翰说他星期三要到伦敦去。
表语：The fact is that he has not been seen recently. 事实是近来谁也没有见过他。
同位语：The fact that he has not been seen recently disturbs everyone in his office. 近来谁也没有见过他，这⼀事实令办公室所有的⼈不安。
形容词宾语：I am glad that you are satisfied with your job.你对⼯作满意我感到很⾼兴。
⼀、⽆词义that引导名词性从句时⽆词义，仅仅起连接或引导从句的作⽤。
例如：I wish that she would understand me.我希望她能理解我。
It is said that there have been great changes in our hometown.据说，我们的家乡已经发⽣了巨⼤的变化。
The reason he didn't come was that he was ill. 他没有来的原因是他病了。
名词性从句中的连接词选择和语序问题
名词性从句中的连接词选择和语序问题名词性从句指的是在句子中充当名词的从句。
常见的名词性从句有主语从句、宾语从句、表语从句和同位语从句。
在名词性从句中，连接词的选择和语序问题非常重要，决定了整个从句的意义和结构。
本文将从连接词选择和语序问题两方面进行探讨。
1. 连接词选择在名词性从句中，连接词的选择根据从句的作用进行选择。
主要的连接词有 that, whether/if, who, whom, whose, which, what, when, where, why 等。
下面分别针对不同的名词性从句进行讨论。
1.1 主语从句主语从句在句子中充当主语的角色，常常用于强调句型或倒装句型中。
连接词一般使用 that 或 whether/if。
例如：- That he is late is unacceptable.（他迟到是不可接受的。
）- Whether/if she can come to the party is still uncertain.（她是否能来参加派对还不确定。
）1.2 宾语从句宾语从句在句子中充当宾语的角色，常常出现在动词后面。
连接词根据宾语从句的内容进行选择。
例如：- She asked me if I had finished the report.（她问我是否完成了报告。
）- He doesn't know what he should do next.（他不知道接下来该做什么。
）1.3 表语从句表语从句在句子中充当表语的角色，常常出现在 be 动词后面。
连接词一般使用 that 或 whether/if。
例如：- The important thing is that we do our best.（重要的是，我们尽力就好。
）- My concern is whether/if she can handle the pressure.（我担心的是她是否能承受压力。
）1.4 同位语从句同位语从句用来解释或说明名词，常常出现在名词后面。
名词性从句的连接词
名词性从句的连接词名词性从句是从句中充当名词成分的句子，它可以用作主语、宾语、表语、同位语等。
而名词性从句的连接词则用于引导名词性从句的开头，起到连接从句与主句的作用。
下面将介绍常见的名词性从句连接词及其用法。
一、引导主语从句的连接词1. That主语从句常用连接词that引导。
例如：That he arrived late for the meeting was a surprise.（他开会迟到了是个惊喜。
）2. Whether/IfWhether和if都可以作为引导主语从句的连接词，它们的用法是完全相同的。
例如：Whether/I will go to the party depends on the weather.（我是否去参加派对要看天气。
）二、引导宾语从句的连接词1. That宾语从句常用连接词that引导。
例如：She said that she would come tomorrow.（她说她明天会来。
）如果宾语从句是由动词ask、doubt、know、learn、see、hear、wonder等引导的，它们后面的宾语从句用if或whether引导。
例如：I don't know if he is coming.（我不知道他是否会来。
）三、引导表语从句的连接词1. That表语从句常用连接词that引导。
例如：The fact that she won the competition pleased her parents.（她赢得比赛的事实让她的父母很高兴。
）2. Whether宾语从句中如果表达"是否"的意思，用whether引导。
例如：The question is whether we should go abroad for further study.（问题是我们是否应该出国深造。
）四、引导同位语从句的连接词1. That同位语从句常用连接词that引导，用来解释或说明前面的名词或代词。
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名词性从句的重点、难点、考点：Who whose whom连接代词What whichwhen where,连接词连接副词Why how★that 无词义，不担任成分，有时可省略连接词whethe r＼if 是否（不担任成分）as if★注意：连词的选用：依据“缺什么补什么”原则确定正确的连词。
如果句子中缺主语，指人用，指物用；如缺宾语，指人用，指物用；如缺时间状语用；地点用；原因用；方式用；定语用what或which；什么都不缺用。
whether 和if（一）that 和what的选用：What 起连接作用外，还在名词性从句中充当成分。
That 只起连接作用，不充当任何成分。
1.______ he wants is a book.2. ______ he wants to go there is obvious.3.The result is ______ we won the game.4.This is _____ we want to know.5.Is _____ he told us true ?6.We should pay attention to ______ the teacher is saying.7. I have no doubt _____ he will come.8. I have no idea _____ he did that afternoon.(二）if 和whether 的选用不能使用if 的情况：a. 主语从句b. 表语从句c. 同位语从句d. 介词后的宾语从句e. whether to do 做动词宾语不能用if to do.f .whether or not 连在一起引导宾语从句时不用if.1. I asked her __________ she had a bike.2.______ we will hold a party in the open air tomorrow depends on the weather.3. We’re worried about ________ he is safe.4. I don’t know ___________ he is well or not.5. I don’t know ________ or not he is well.6. The question is _________ he should do it.7.The doctor can hardly answer the question ______ the old man will recover soon.8. I don’t know _______ to go.（三）其它连接代词和副词的连用何时举行运动会还没有决定。
________ we shall hold our sports meeting is not decided.我不知道昨天谁打破了玻璃。
I don’t know _________ broke the glass yesterday.我不知道他长的什么样子。
I have no idea _________ he looks like.这就是我忘记眼镜的地方。
This is _________ I left my glasses.（四）引导词that 的省略that 可省略的情况：单个宾语从句中的that可省略that不可省略的情况：a. 主语从句b.表语从句c.同位语从句d.用it做形式宾语的宾语从句e. 并列的宾语从句中的后几个从句的,引导词that 不能省略1.I don’t think ________ she is coming.2.It is a pity ________ he has made such a mistake.3.The reason is _________ he is careless .4.The news ________ our team won the match inspired us.5.I don’t think it necessary _________ you should read English aloud.6.He told me __________ his father had died and __________ he had to make a living alone.五、同位语从句的引导和辨别1.同位语从句的格式：n.+ 连接词+ 从句2.能接同位语从句的名词有：fact、idea, news, information, order, belief, suggestion, advice等.3.连接词通常是that,也可根据含义选用whether, what, when, where 等来引导同位语从句.1. I have no idea _________ he comes from.2. He can’t answer the question ________ he got the mo ney.3.He gave us many suggestions ________ we should get up earlier and take more exercise.4.I have no doubt ________ he will win.5. I have some doubt ________ he will win.（六）同位语从句和定语从句的区别1.定语从句是先行词的修饰语，它不涉及先行词的具体内容。
定语从句中that起连接作用，在定语从句中充当一个句子成分，充当从句的宾语成分时可省略。
2.同位语从句对中心词的内容作进一步的解释和说明，表明中心词的具体内容。
引导同位语从句的that 在同位语从句中不做任何成分,只起连接作用,无具体含义,且不可省略.1.We expressed the hope that they had expressed.2. We expressed the hope that they would come to China again.1.The information has been announced that more middle school graduates will be admitted into university.2.The information that he revealed at the meeting is of great value.（七）在表示“命令、建议、坚持、要求”的名词性从句中，要用“should+动词原形”形式，should可以省略。
e.g. I made a suggestion that he (should) go there at once.I suggested that he (should) go there at once.The suggestion was that he (should) go there at once.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\ He insisted that he _____ the money and ____ he ____ set free.A. didn’t steal , / wasB. steal , that , shoud beC. didn’t steal , that , should beD. steal , /was(八）宾语从句的时态呼应1. 如果主句时态是现在时或将来时,从句谓语可根据句意需要而选用任一种时态.a .他相信他的梦想总有一天会实现的. He believes _________________________ .b .请告诉我你昨天这个时候在干什么. Please tell me _________________________. (九）名词性从句中一律使用陈序语气。
e.g. He asked how much I paid for the violin.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。
(十) 疑问词+ever 与no matter + 疑问词的区别：疑问词+ever可以引导________________或_________ .Whoever breakes the law must be punished .或：Whoever breakes the law, he must be punished .no matter + 疑问词只能引导_________________________.No matter who breaks the law, he must be punished.(十一) 有些不可直接跟宾语从句的动词。
I hate it when…; I dislike it when…; I’d appreciate it if…I will see to it that…I hate it when people speak with their mouth full.I hate___ when the weather becomes cold because there in no heater inside .A. thisB. thatC. itD. soPractice:1. It now appears ______ they are in need of help.A. thatB. whichC. whatD. how2. It is good news ______ they will arrive in a few days.A. whichB. whatC. thatD. how3. This is ______ she was born.A. whereB. whichC. thatD. what4. The question is ______ we can’t go there today.A. thatB. whatC. whichD. when5. The question is ______ it is worth doing.A. ifB. whetherC. whichD. what6. The reason he has made such great progress is _______ he has never wasted his time.A. becauseB. whyC. thatD. what7. My suggestion is ______ we should turn the land into rice fields.A. whatB. thatC. whichD. where8. His proposal is that the dam ______ at the foot of the mountain.A. buildB. will buildC. be builtD. will be built9. We all know the truth _____ the earth goes round the sun.A. thatB. whichC. whatD. whether10. We heard the news ______ our team had won.A. whichB. thatC. whatD. where11. The problem ______ it is right or wrong has not yet been decided.A. whichB. thatC. whetherD. if12. You must do well ______ the teacher asks you to do.A. whichB. whatC. thatD. where句子改错1. You can give this ticket to whomever wants to have it.2. I don’t know if to stay here or not.3. This school is no longer that it was 30 years ago.4. You are saying that everyone should be equal, and this is how I disagree.5. The fact he is an orphan is well known．6. What surprise me most is that she doesn’t even know what the difference between the two lies.7. It is happened that I was there that evening.8. The reason why I burst into tears is because I don’t want to part with my mother.9. It is hard of him to work out the problem.10. My brother says that he has lived here for twenty years and he loves this city very much.中译英。