英语高中英语名词性从句详细讲解
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。
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。
高中英语名词性从句讲义(超详细版)
名词性从句一．定义：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。
1. His words are true. What he said is true.2. The dog sensed something good. The dog sensed that there was something good nearby.3. These are his words. These are what he said.4. My Maths teacher, Mr He, is a kind person. The news that the plane had crashed made us sad.二．引导名词性从句的连接词连词：在从句中不充当成分，只起连接作用 that, 无实义whether, if 是否as if \ as though 似乎，好像连接代词：有词义，在句中担任主语，表语，定语或宾语。
what, 什么 who, 谁whom, 谁，作宾语 whose, 谁的 which, 哪一个whatever, whoever……也可以引导。
连接副词：有词义，在句中担任状语。
when ,什么时候 where, 什么地方 why, 为什么 how ,怎么样how many, how much, how often三．主语从句1. 作句子主语的从句叫主语从句。
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。
That he is late for school makes the teacher very angry. 他上学迟到让老师很生气。
高中名词性从句语法精讲详解
高中名词性从句语法详解名词性从句：宾主同表（宾从，主从，同从，表从）一、宾语从句宾语从句的类型（1）主语+谓语+宾语从句He said that he wouldn’t take part in the sports meeting.（2）主语+be+adj+宾语从句I’m sure that our team will win.☆只限于少数adj. sure, certain, afraid, confident, etc（3）主语+谓语+宾（表）语+介词+宾语从句（except, in that在于，因为）He is a good student except that he is a little careless.I like the city,but I like the country better in that I have more friends there1. 宾语从句的连接词1）连词that,只起连接作用,在从句中不作句子成分,也无词汇意义,在口语中常被省略★由that 引导的宾语从句在以下情况下不能省略：(1).在主+谓+it(形式宾语)+宾补+that从句(真正宾语) 的句型中：表喜欢、憎恶等心理活动的动词或词组后习惯上先跟形宾it：hate, love, enjoy, dislike, don’t mind, feel like, appreciate, rely/depend on, count on, see to, take, owe等We must make it clear that we mean what we say.We heard it that she would get married next month.(2).由and连接的两个由that引导的宾语从句中,第二个that 不省略.He told me (that) he would come and that he would come on time. (3) 从句前有插入语：He may tell you, for example, that she is interested in Chinese(4）从句主语是that时：He says that that is a useful book(5)当that从句是双宾语中的直接宾语时，that不可省。
高中英语名词性从句精讲
高中英语名词性从句精讲从句是相对于主句而言的,即它是从属于某一个主句,而不能单独作一个句子。
在英语中,主要有三大从句,即名词性从句（包括主语从句,宾语从句,表语从句,同位语从句）、形容词性从句（即定语从句）、副词性从句（即状语从句,包括时间、条件、结果、目的、原因、让步、地点、方式等）。
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。
引导名词性从句的连接词可分为三类：（1）从属连接：that, whether, if（不充当从句的任何成分）（2）连接代词：what, whatever, who, whoever, whom, whose, which.（3）连接副词：when, where, how, why名词性从句知识点汇总1名词性从句的分类名词性从句，包括四种从句，即主语从句、宾语从句、表语从句、同位语从句。
因为主语、宾语、表语、同位语这四种成分均可以由名词构成，所以这四种从句在主句中都充当了名词的作用，故将这四种从句统称为名词性从句。
如：1.That she will help me made us happy.（主语从句）2.I can understand what he said.（宾语从句）3.This is where I was born.（表语从句）4.The fact that a heavy earthquake happened made me crazy.（同位語从句）2名词性从句的连接词分类1.that（无含义，不充当成分）2.whether,if（有“是否”的含义，但不充当成分）3.连接代词：what, whatever, who, whoever, whom, whomever, whose, which, whichever.（在从句中做主语、宾语、表语和定语）连接副词：when, whenever, where, wherever, how, however, why （在从句中做状语）4. as if,as though,because（不充当成分，在名词性从句中只引导表语从句）3连接词 that 在名词性从句中可以省略的三种情况1.it 做形式主语，that引导主语从句时It is said (that) he has been studying abroad.据说他一直在国外学习。
高中英语名词性从句详解
名词性从句—高中英语语法（1)表语从句ﻫ1. 定义：用作表语的从句叫做表语从句ﻫ2. 构成:关联词+简单句３．引导表语从句的关联词的种类：ﻫ（1）从属连词thaｔ。
如：ﻫThe ｔｒouble is thａt I haｖe loｓt hｉｓaddreｓs. 麻烦是我把他的地址丢了。
ﻫ(2）从属连词ｗhetheｒ, as, as if。
如:ﻫＨe ｌookｅd just as he had lookeｄｔen years befoｒe. 他看起来还与十年前一样。
ﻫＴhe questｉon is wheｔher thｅy wｉｌl ｂｅaｂle ｔｏhelｐｕs. 问题是他们是否能帮我们。
注:从属连词iｆ一般不用来引导表语从句，但as iｆ却可引导表语从句，如：All this waｓoveｒtｗenｔy yｅars ago, but it's aｓif it was onｌy ｙｅｓｔｅrdａｙ．ﻫ这都是２0多年前的事了，但宛如昨天一样。
ﻫ能跟表语从句的谓语动词一般为系动词ｂe, seeｍ，ｌook等。
如:Iｔlｏoｋed ａsｉf it ｗａs going to rain.看起来天要下雨了。
(3)连接代词who, ｗhoｍ, ｗhｏsｅ, what,which,whoｅｖer, wｈaｔeveｒ, ｗhichever连接副词where，ｗheｎ，how,ｗhy。
如：Ｔhｅprｏbｌeｍis who wｅcａn gｅt tｏｒepｌａce hｅr.问题是我们能找到谁去替换她呢。
Ｔhe quesｔion is hｏw hｅｄｉd it. 问题是他是如何做此事的。
ﻫThat wａｓwhat she dｉｄthis mornｉng on ｒeacｈinｇｔhe atｔic. 那就是她今晨上了阁楼干的。
解释:ﻫ１. 连词ｂecａuse可引导表语从句。
如:Ｉthiｎｋit is bｅcaｕｓe you arｅdoing too muｃh. 我想这是因为你做得太多。
(完整版)高中英语语法总结-名词性从句
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。
第一节知识点讲解顾名思义，主语从句在句子中作主语。
有时本身出现在主语的位置上，也有时出于句子结构的考虑退到句子的尾部，前面用形式主语 it 代替。
从句作主语时，谓语动词一般为单数形式。
如 :What I saw was beyond any verbal description.That his hair was turning grey worried him a bit.Why the company denied the contract is still unknown.When and where the government will build a city square is under discussion.It is pretty annoying that a small part of the machine is missing.It remains to be seen whether the new novel will be well received.Tips: 主语从句的 that 绝对不能省去。
因为句子是不能做主语的，故用 that 引导。
若去掉则没有了主语，而宾语从句的 that 可省。
主语从句： That he is right is known to all of us.宾语从句： We all know (that) he is right.1.It 作形式主语和 it 引导强调句的比较It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。
而 it 引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。
高中英语语法---名词性从句详解
名词性从句详解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。
一.语法讲解1.主语从句主语从句在句中做主语。
它可以放在主句谓语动词之前，但多数情况由it作形式主语，而把主语从句放在主句之后。
例如：Who did that is known to all.It is interesting that you should like him.2.表语从句表语从句在句中作表语，位于主句中的系动词之后。
如：The question is who can complete the difficult task.表语从句不能用if引导，但可用as if引导。
例如：He looked as if he was going to cry．3.同位语从句同位语从句跟在名词后面，进一步说明该名词的具体内容。
引导同位语从句的名词主要有fact，news，promise，idea，truth等。
连接词用that（不用which），及连接副词how，when，where，why等。
例如：His delay is due to the fact that the car went wrong halfway．The news that our team has won the match is true.She asked the reason why there was a delay．4.宾语从句1.宾语从句在句中作及物动词或介词的宾语。
例如：We can learn what we did not know．He will talk to us about what he saw in the U.S.如果主句的谓语动词是及物动词make，find，see，hear等，则把宾语从句置于宾语补足语之后，用it作为形式宾语。
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1_________ in the regulations that you should not tell other people the password of your e-mail account. .(2005 上海)
A. What is required
B .What requires
2.It + be + -ed分词 ＋ that从句
It is believed that…
人们相信…
It is known to us all that …. 众所周知…
It has been decided that…… 已经决定……
3.It + be + 名词 ＋ that从句
It is common knowledge that… …是常识
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, whomever, whose, which, whichever
连接副词：when, where, how, why, whenever, wherever, however
It is necessary (important, natural, strange, etc.) that …
It is suggested (requested, proposed, desired, etc.) that…
注意 主语从句中的“主谓一致”：
1.主语从句通常被看作一个整体,主句的谓语动词用单数 形式.
It is a surprise that ….
令人惊奇的是…
It is a fact that……
事实是……
4.It + 不及物动词 ＋ that从句
It appears that…
似乎…
It happens that ….
碰巧…
It occurred to me that…… 我突然想起……
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：
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
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.
C .That is D. It is
3.After Yang Liwei succeeded in circling the earth,_______ our astronauts desire to do is walk in space.(2004 上海)
A .where B .what
That they will come __i_s____certain.
2. What 引导主语从句时,主句谓语动词的单复数由 表语的单复数决定.
What he wants __a_r_e__these books. What he wants ___is___some water.
Exercises
(同位语从句)
Do you know the man who is standing over
there?
(定从)
It is said that they won the game. (主从)
引导名词性从句的连接词：
that（无意义，不可省，不充当任何 成分）
whether, if（均表示“是否”表明从 句内容的不确定性）
The news that they won the game spread the
whole school. (同位语从句) I don’t think he is an honest boy. (宾从)
The fact is that he stole the car. (表从) Do you know the fact that he stole the car?
C It is required
D. It requires
2. The Foreign Minister said, “_______ our hope that the two sides will work towards peace.” (2006 北京)
A. This
B. There is
2.When he will go to America is not yet fixed.
(It is not yet fixed when he will go to America.)
1.It + be + 形容词 ＋ that从句
It is necessary / important/ obvious that…
C at
D. how
宾语从句就是在复合句中作宾语的
宾语从句
名词性从句，通常放在主句谓语动词 (及物动词) 或介词之后。
1.She did not know what had happened.(作动词的宾语)
2. Our success depends upon how well we can cooperate with one another. (作介词的宾语)
名词性从句 noun clause
主语从句
subject clause
宾语从句
object clause
表语从句
predicative clause
同位语从句
appositive clause
请判断出下列的句子属于哪种从句
What I want to do is taking a bath. (主从)
主语从句
在复合句中作主语的从句.引导词有连 词that，whether; 代词：who, what ,which;副词：when ,where, how, why等.
1.That he is a famous singer is known to us. (It is known to us that he is a famous singer.)