名词性从句
名词性从句一、名词性从句定义：名词性从句是由if, whether, that, how和各种疑问词充当连接词所引导的从句，其功能同名词一样。
二、类型：主语从句、表语从句、宾语从句、同位语从句(请说出以下句子中的画线部分在句子中充当的成分)1. When we’ll hold the sports meeting has not been decided yet.2.The fact that Great Britain is made up of three countries is still unknown to many people..3.He wonder if he could use my bike.4. I am thinking about who will be given the job.5. That he has won the first prize is true.6. My parents’ wish is that I can go to a key university.7. They are discussing the problem whether they should ban(禁止) fishing in the lake.8. The problem is how I can get in touch with them.9. It is not clear whether she will attend his wedding.10. I have no idea when he would return.三、用法：1、主语从句：在复合句中做主句的主语。
引导词有连词that (that 不可省),whether; 代词有who, what ,which; 副词when ,where, how, why 等。
如:A. That he is a famous singer is known to us. (It is known to us that he is a famous singer.)B. When he will go to America is not yet fixed. (It is not yet fixed when he will go to America.)2. 宾语从句：在复合句中做主句的宾语.引导词有连词that (that 常可省略),whether, if; 代词有who, whose, what ,which; 副词when ,where, how, why 等。
如:A. We believe (that) he is honest.B. I told him (that) I would come back soon.C. He said (that) he would go there the next day and that his family wouldn’t go there.3、表语从句：在复合句中做主句的表语.引导词有连词that (that 不可省),whether; 代词有who, what ,which;副词when ,where, how, why 等。
如:A. The problem is that we didn’t get in touch with him.B. This is how Henry solved the problem.C. His suggestion is that we (should) finish the work at once.(如果句子的主语是suggestion, advice, order等名词时,后面引导的表语从句用should+动词原形,should可省略.)4、同位语从句：在句中起同位语的作用.一般放在名词fact , news , idea , promise, thought , suggestion等之后,用以说明或解释前面的名词。
引导词有连that；少数情况下也可用连接副词等。
如：A. The thought that we might succeed excited us.B. The idea that they should try a second time is worth considering.C. The suggestion that the plan (should) be delayed will be discussed tomorrow.(如果名词suggestion,advice.order等词后的同位语从句的谓语动词要用should+动词原形,should可省略.)四、注意：1、注意that 的用法(that引导名词性从句时在从句中不做任何成分，也没有具体的意义。
其他连接词在引导从句时都做相应的成分并有具体的意思。
)①主语从句、表语从句、同位语从句中用that但不能省略。
如：A. That they are good at English is known to us all.B. The problem is that we don’t have enough money.C. She expressed the hope that they would come to China one day.②宾语从句中的连接词that有时可省有时又不可省，在以下几种情况中that不能省略：当从句和主句谓语动词之间有插入词语或者从句主谓之间有插入语时，that不可省略；当that从句与另一名词性从句并列作宾语时，that不能省；当that作介词宾语时，that不可省掉。
如A. He judged that, because he was a child,he did not understand what he had said.B.I believe that he, as a teacher, is responsibleC. Everyone knew what happened and that she was worried.D. The reason lies in that she works harder than the others do.③that从句做主语和宾语时，可以用it来替换成以下几种结构表达。
(A) It is clear/certain/likely/true/surprising that…(B)It is a pity/shame/good idea/no wonder that…(C)It is said/reported/believed/known/thought/suggested that…(D) It seems/happens that… 如：It happened that I went out last night.It is said that China will win in the World Cup2、注意同位语从句和定语从句的区别：A.从句前都有一个名词B.定语从句中关系词代替先行词在从句中做成分;而在同位语从句中连接词不做成分。
C.定语从句是对前面的名词进行修饰，同位语从句是对前面的名词进行解释说明。
The news that our team has won the final match is encouraging.（同位语从句）我们队取得决赛胜利的消息令人鼓舞。
The news that you told us is really encouraging.（定语从句）你告诉我们的消息真的令人鼓舞The suggestion that students should learn something practical is worth considering.The suggestion that is worth considering is that the students should learn something practical.They put forward the question where they could get the money.This is the place where the accident happened.3、whether和if的用法①whether和if在宾语从句中可以互换，但是作介词宾语时连接词一般用whether。
如：It all depends on whether they will come back.②后面直接跟or not时用whether如：I didn’t know whether or not he had arrived in Wuhan..③主语从句，表语从句，同位语从句中只能用whether。
如：Whether the meeting will be put off has not been decided yet.The question is whether they have so much money.We ought to discuss carefully the question whether we can do it or not.④whether常与or连用表示一种选择，if不能这样用；whether也可与动词不定式连用但if不能。
如：The question of whether they are male or female is not important.I have not decided whether to go or not.⑤whether可引导一个让步状语从句表示“不管”、“无论”，而if不能。
If表示“如果”时，不能用whether。
如：Whether he comes or not,we will begin our party on time.If I have enough time, I will play football.4、疑问词+ever和no matter+疑问词的区别：①疑问词+ever可引导名词性从句，在主从句中要充当一定的部分。
如：Whoever breaks the rule must be punished.You can choose whatever you like in the shop.②疑问词+ever还可引导让步状语从句。
如：Whoever breaks the rule,he must be punished.Whatever you do,you must do it well.③no matter+疑问词只能引导让步状语从句。
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
出品
三、宾语从句
在句中充当及物动词或介词宾语的句子叫做 宾语从句。 我不知道你会来这里。 I don’t know （that） you will come here.
三、宾语从句
1、用作及物动词的宾语 (1) They pretended that they were reading in the room. (2) I didn’t know what they were talking about.
以it作形式主语，把主语从句后置的常 用句型有：
1. It+be+形容词+that从句
It is/was certain that – clause
clear
important necessary probable possible
出品
（1）It is certain that she will do
出品
一、主语从句
在句中充当主语的从句叫做主语从句。 他星期三来这里是肯定的。
That he will come here on Wednesday is certain.
注意：从句作主语时，就算是句子意思完整，都 要加上从属连词that, 而且that不能省略,不充当 成分仅起连接作用。 他星期三是否来这里还不肯定。 Whether he will come here on Wednesday is not certain. 注意：主语从句表示“是否” 只用 “whether” 而不用“if”
well in her exam.
（2） It is probable that he told her everything.
www.010englBiblioteka 出品
名词性从句
语序：陈述语序
在句中充当主语的从句称为主语 从句。英语中主语从句的句型可分 为两大类： 直接将主语从句放在主语位置上； 用it作形式主语，将真正的主语从 句后移，放在其他成分后。
让我们先说说第一类吧！
一、连接词（只起连接作用，在从句中不充当句子成分）
that：无词义。 e.g.: 他赢得比赛一事在我国引起巨大轰动。 That he won the game made a tremendous stir in our country. whether：“是否”。可单独使用，也可与or或or not连用。 e.g.: 我们明天是否能去春游取决于天气。 Whether we can go for a spring outing depends on the weather. 他们是否会来还未告诉我们。 Whether they will come has not been told to us.
四、主语从句与主谓一致
一个从句作主语时，谓语动词通常用单数形式， 特别是用it作形式主语的句型。 e.g.: Whether this kind of chemicals is better has not been tried.
当what引导主从，应遵循意义一致原则，谓语动 词选用相应形式。表语是复数时，谓语动词用复数 形式。 e.g.: What we do willingly is easy. What they were searching for were the missing gems.
Introduction
名词性从句：包括四种：主语从句、表语从句、宾语从
句、同位语从句。
连词：引导名词性从句的连词有以下三类
连接词：只起连接作用，在从句中不充当句子成分； 连接代词：连接主从句，并在从句中作主语/宾语/表 语/定语； 连接副词：连接主从句，并在从句中作时状/地状/原 因状/方式状。
名词性从句的种类与作用
名词性从句的种类与作用名词性从句是指在句子中充当名词的句子成分，它能够承担名词所具有的各种功能，如主语、宾语、表语、同位语等。
名词性从句的使用可以使句子更加丰富，表达更加准确。
本文将介绍名词性从句的种类及其作用。
一、主语从句主语从句是名词性从句的一种常见形式，它在句子中充当主语的角色，起到句子的主题和核心的作用。
主语从句通常以“that”或“whether”引导。
例如：1. That he is a talented musician is well known to everyone.2. Whether she will come to the party is still uncertain.主语从句常常用于强调句和形式主语的表达中，使句子更加生动有力。
二、宾语从句宾语从句作为动词的宾语出现，可以回答“what”、“where”、“which”、“who”等疑问词引导的问题。
它常见于及物动词后，也可用于介词后。
例如：1. She asked me what I wanted for dinner.2. He told me where he had been yesterday.宾语从句的作用是充当动词的宾语，使句子更加完整，表达更加准确。
三、表语从句表语从句用来修饰名词或代词，充当表语的角色，常以“that”或“whether”引导。
表语从句通常出现在“be”动词后或感官动词后。
例如：1. The question is whether we should go or stay.2. His wish is that he could travel around the world.表语从句可以在句中起到进一步解释、说明或补充的作用，使句子更加丰富多样。
四、同位语从句同位语从句指的是对名词或代词进行解释、说明或补充的句子，常见于名词后面，起到进一步解释名词的作用。
同位语从句通常以“that”引导。
名词性从句
名词性从句1.名词性从句的定义名词性从句是起名词作用的从句，这些从句可以作为一个整体来看，其作用就相当于一个名词，在复合句中作主语，宾语，表语和同位语。
名词性从句包括主语从句，表语从句，宾语从句，同位语从句四种。
2.名词性从句的连接词名词性从句通常由一个连接词和主句相连。
连接词很重要，它既是联系主句的纽带，又是从句的标志，通过连接词，我们可以辨认不同从句的性质。
一．从属连接词（在从句中不充当任何成分，只起到连接从句的功能）A．that 只是引导名词性从句，本身并没有实际意义，在从句中不充当任何句子成分。
That he will come to the meeting is certain.(主语从句)The fact remains that we are behind the other group.(同位语从句)B．if和whether具有“是否”的意义，但是whether比较正式，在口语中人们经常if, if 和whether在名词性从句中尽管不充当任何的成分，但不可以省略。
C．whether不能替代if的情况1.if只能引导宾语从句（做介词宾语的情况除外），而whether 可以引导所有的名词性从句。
She asked if/ whether that was enough.Whether the football match will be played depends on the whether.The question is whether we can arrive there on bus.2.whether引导宾语从句做介词的宾语，if没有这种用法It depends on whether it will be fine.3.whether后紧跟不定式He was wondering whether to go home.4.or not 可直接跟在whether后面，但不可以直接跟在if后面。
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
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
名词性从句分类
名词性从句定义：功能上相当于一个名词，可以 在复合句中作主语、宾语、表语、同位语。 名词性从句分为：主语从句、宾语从句、表语从 句、同位语从句。请顾名思义。
•
•
名词性从句引导词
•
连接连词：that，whether，if
•
连接代词：what，who，whom，which，whose， whatever，whichever，whoever等。 连接副词：where，when，why，how，whenever， wherever，however等。
•
连接连词：that，whether， if
•
that在名词性从句中无意义，不作成分（名词性 从句不缺主语、宾语、表语等，且意义完整时， 考虑that。 whether和if在名从中不作成分，意为“是否”。 名从不缺主语、宾语、表语等，但是缺少“是否 ”这个意思时，考虑whether和if。
•
what，who，whom，which
主语从句注意事项
• •
单个主从作主语，主句谓语用单数 当that不在句首，而是如“it is/was+形容词/名 词/-ed+that从句”之类的句子一样，出现在后面 时，that可省略。此时，it为形主，that引导的 从句为真正主语。
宾语从句注意事项
that在宾语从句中一般可省略。 that在宾从中，在以下情况下不省略：
•
名从缺主、宾、表，指物，用what，意为“什么 ”；名从缺定，表“什么样的”，用what。 名从缺主、宾、表，指人，用who或whom（whom专 作宾）意为“谁”。
•
•
which意为“哪一个，哪一些”，可作主、宾、表 、定。请注意与what之间区分，两词意思不同。
名词性从句
3) It +不及物动词+从句
It happened that...
碰巧……
It occurred to me that…我突然想起…
*_I_t _h_a_p_p_en_e_d__th_a_t___(刚好)I came into the office at that time.
*_It_o_c_c_u_r_re_d__to__m_e_t_h_a_t ___(我突然想起)I forget to sent the letter.
3. 作形容词或过去分词的宾语，例如:
I am afraid (that) I’ve made a mistake.
I am sure (that) he will win the game.
She was surprised/pleased that he had passed the exam.
The fact is that we have lost the game.
表语从句
The news that we won the game is exciting.
同位语从句
引导名词性从句的连接词可分为三类: 连接词: that, whether, if 连接代词: what, whatever, who, whoever, whomever，which ，whichever，whose. 连接副词: when, where, how, why
什么是名词性从句
什么是名词性从句？名词性从句（Noun Clauses）是一个在句子中充当名词的从句。
它可以在句子中担任主语、宾语、表语或补语的角色。
名词性从句通常由连词引导，例如that, whether, if, who, whom, whose, what, which, when, where, why等。
以下是名词性从句在不同角色中的示例：1. 主语（Subject）：- What she said surprised me.（她所说的让我感到惊讶。
）- Whether we go or not is up to you.（我们去与否由你决定。
）2. 宾语（Object）：- I know that he is coming.（我知道他要来。
）- She asked me where I was going.（她问我要去哪里。
）3. 表语（Predicate）：- The problem is how to solve it.（问题是如何解决它。
）- His wish is that everyone gets along.（他的愿望是每个人和睦相处。
）4. 补语（Complement）：- The important thing is what you do next.（重要的是你接下来要做什么。
）- His goal is to become a doctor.（他的目标是成为一名医生。
）名词性从句的使用可以使句子更加丰富和灵活，它可以替代一个独立的名词，并在句子中承担相应的语法角色。
名词性从句可以用于各种不同的语境，包括陈述句、疑问句和感叹句等。
需要注意的是，名词性从句的引导词可以根据从句的具体内容和功能而有所不同。
因此，在使用名词性从句时，我们需要根据语境和句子的需要选择适当的引导词。
了解和掌握名词性从句的概念和用法，可以帮助我们在英语表达中更加灵活和准确地使用不同类型的从句。