名词性从句
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
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
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。
名词性从句有哪些
名词性从句有哪些名词性从句共有四种，分别是主语从句（整个从句在主句中做主语），表语从句（整个从句在主句中做表语），同位语从句（整个从句在主句中做同位语），宾语从句四类（整个从句在主句中做宾语）。
名词性从句有哪些1、主语从句例如：It + be + 形容词/名词/动词过去分词 + that 从句It is strangethat he knows nothing about it.从句：He knows nothing about it.主句：It is strange something (= He knows nothing about it).连接词在从句中是否充当成分：否连接词是否可省：否2、宾语从句例如：that 引导的宾语从句I think that English is important.从句：English is important.主句：I think something (= English is important).连接词在从句中是否充当成分：否连接词是否可省：是3、表语从句用法和结构同宾语从句，区别在于：系动词后面所接的从句为表语从句，而及物动词后面所接的从句为宾语从句。
例如：- that 引导的表语从句The truth is that English is important.从句：English is important.主句：The truth is something (= that English is important).4、同位语从句同位语从句就是在复合句中作名词的同位语的名词性从句。
同位语从句对于名词进一步解释，说明名词的具体内容，一般由that引导，同位语从句有时可以不紧跟在它所说明的名词后面，而是被别的词隔开。
名词性从句的用法
名词性从句的用法名词性从句是从句的一种形式，可以在句中担任名词的角色。
在句子中，名词性从句可以充当主语、宾语、表语或补语。
掌握名词性从句的用法，对于提高文章的表达和理解能力非常重要。
本文将详细介绍名词性从句的不同用法及其相关例子。
一、名词性从句作主语1. 名词性从句作主语可以起到引出全文主题的作用。
例子:- What she said is absolutely right.（她说的是完全正确的。
）- Whether we should go camping this weekend remains undecided. （我们是否应该在这个周末去野营还没有决定。
）2. 名词性从句作主语可以代替一个复杂的句子。
例子:- How he managed to finish the project on time is still a mystery.（他如何在时间之内完成这个项目仍然是个谜。
）- What you do in your spare time is your own business.（你在业余时间做什么是你自己的事情。
）二、名词性从句作宾语1. 名词性从句作及物动词的宾语，说明动作的对象。
- I believe that love can change the world.（我相信爱可以改变世界。
）- She doesn't know where she left her keys.（她不知道她把钥匙放在哪里了。
）2. 名词性从句作介词的宾语，说明介词所表示的关系。
例子:- The teacher is proud of what his students have achieved.（老师为他的学生所取得的成绩感到骄傲。
）- I'm interested in how they managed to win the competition.（我对他们是如何赢得这个比赛感兴趣。
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A. (that) B. that
that引导的名词性从句，作主 语、表语、同位语时一般不能省略。 在引导单个的宾语从句时可以 省略，但在以下几种情况中that不 能省略： 1）It 做形式宾语的宾语从句； 2）并列宾语从句中，从第二个 宾语从句开始都不可省略； 3）当that作介词宾语时，that 不可省掉。
巩固提升一下吧
3. He didn’t make ______ clear when and where the meeting would be held. (2007天津) A. this B. that C. it D. these 4. I’d appreciate ______ if you would like to teach me how to use the computer. A. that B. it C. this D. you
巩固提升一下吧
1.___ is our belief that improvement in health care will lead to a stronger, more prosperous economy. (2006浙江卷) A . As B. That C. This D. It 2. It is none of your business________ other people think about you. Believe yourself. (2007 福建) A. how B. what C. which D. when
We now know that you don’t like him. That is why you don’t like him. That you don’t like him makes him heartbroken. The fact that you don’t like him makes him heartbroken.
A.if / whether B. if C.Whether D. that
只用whether不用if 的情况：
a. b. c. d. e.
主语从句中 表语从句中 同位语从句中 介词后的宾语从句中 Whether后直接跟不定式
to do
f. whether 后紧跟or not 引 导宾语从句时不用if.
Noun clausesΙ
名词性从句的概念：
• 名词在句中可充当主语，表语，宾语和同位 语，起名词作用的句子叫名词从句。 • For example: 1.The bag is in the desk. 2.I washed my clothes yesterday 3.She is a nice girl. 4.The professor, my uncle came back yesterday.
三.it在名词性从句中作形式主语或形式宾语的用法
1.___ is a fact that English is being accepted as an international language. A. There B. This C. That D. It 2.I hate ___when people talk with their mouths full. A. it B. that C. this D. them 3.You may depend on ____ that all goods will be shipped abroad in time. A. which B.it C. whom D. those
四、疑问词+ever引导的名词性从句 1. It is generally considered unwise to give a child _______ he or she wants. A. however B. whatever C. whichever D. whenever 2. Sarah hopes to become a friend of ____ shares her interests. A. anyone B. whomever C. whoever D. no matter who
1.为了使句子保持平衡，常用先 行词it作形式主语或形式宾语, 而把真正的主语或宾语放到后 面。 2.it作形式宾语的情况 1)在“动词+宾语+宾语补足语” 句型中 2)动词是love，like, hate, appreciate, see to, depend on, count on等，则用it作形 式宾语，后再接宾语从句。
3. It is known to us all that that the the school school carnival carnival is is to to be be held held Subject Clause next weekend. weekend 4. The fact that that the the school school carnival carnival is is to to be be held held next next weekend is known to us all. Appositive Clause 5. What I am eager for is that that our our class class will will have have an an outstanding performance in the coming school carnival.
F ) T )
Could you tell me where he lives? ( Could you tell me where does he live? (
3. He asked me what was the matter with me. ( T )
T ) F )
二、名词性从句连接词的选用
3.whether和if的选用
A 1. I asked her __________ she had a bike. 2.______ we will hold a party in the open air C tomorrow depends on the weather. 3. We’re worried about ________ he is safe. C 4. I don’t know ________ he is well or not. A 5. I don’t know _______ or not he is well. C 6. The question is _______ he should do it. C 7.The doctor can hardly answer the question ______ the old man will recover soon. C 8. I don’t know _______ to go. C
1.that 和what 的选用 What he wants is a book. 1._____ That he wants to go there is obvious. 2._____ that we won the game. 3.The result is ______ what we want to know. 4.This is _____ what he told us true ? 5.Is _____ what the 6.We should pay attention to ______
that 和 what 都可引导所有 的名词从句。 但是，what除起连接作用外， 还在名词性从句中充当成分， 可做从句的主语、宾语、或表 语。 而that在名词性从句中不 充当任何成分，只起连接作用。
2.that的省略
请用that/ (that)填空 1.I don’t think ____ A she is coming. B he has made such a mistake. 2.It is a pity ____ 3.The reason is ____ B he is careless . 4.The news ____ B our team won the match inspired us. 5.I don’t think it necessary ____ B you should read English aloud. 6.He told me ____ A his father had died and ____ B he had to make a living alone. 7. The reason lies in _____ B she works harder than the others do.
1.主语从句作主语相当 于第三人称单数作主语， 谓语动词用单数； 2.如果由and连接两个 或两个以上的主语从句作 主语，谓语动词用复数； 3.由两个或多个连接词 引导一个主语从句，谓语 动词用单数。
Correct sentences
1. He will give up his present job surprises all of us. That he will give up …
基础回顾１
主语从句 名 词 性 从 句 宾语从句 表语从句
作主语 作宾语 作表语
（Subject Clause） （Object Clause）
（Predicative Clause）
同位语从句 作同位语（来自ppositive Clause）
Identify clauses
1.We know that the school carnival is to be held next Object Clause weekend. weekend 2. That the school carnival is to be held next weekend is Subject Clause known to us all .