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。
名词性从句-完整版PPT课件精选全文
3. 连接副词：when(＝the time when什么时候，何时)，where(＝the place where什么地方，何地)，how(＝the way that/in which怎样， 以……方式，如何)，why＝the reason why为什么)。它们除起连 接作用，还在从句中作状语。
3) wh类连接词引导的主语从句： wh类连接词包括wh类的连接代词(who, whom,
whose, which, what, whoever, whomever, whichever, whatever等)和连接副词(when,
where, how, why, whenever, wherever, however 等)。what, when和wh-ever类的词有时可不表 疑问。wh类连接代词在句中既起连接作用， 又可充当主语、宾语、表语、定语等成分。 wh类连接副词在句中起连接作用，在从句中 可充当时间、地点、原因、方式状语。
【温馨提示】 ①whether/ if引导宾语从句表示“是否”
的意思时，一般情况下可互换。 ②if引导宾语从句时可以有否定式，而
whether从句则没有。 e.g. I don’t care if he doesn’t come.
5) 特殊疑问词引导的宾语从句： 由who, what, how, which, whose, where, why等词引导的宾语从句，可作动词、 介词及形容词的宾语。
【温馨提示】 doubt, doubtful与sure后名词性从句连接词 that, whether, if的选择。 ①当doubt, doubtful用于肯定句时，后面的名
词性从句的连接词常用whether或if；当 doubt, doubtful用于否定句或疑问句时，后 面名词性从句的连接词用that。
高中英语语法名词性从句专题讲解
高中英语语法名词性从句专题讲解一、that 从句1、主语从句（1）that从句作主语时，常用it作形式主语，常见的句型有：It+be+形容词（obvious, true, natural,surprising,good,wonderful,funny,possible,likely,certain,prob able,etc.）+that从句It+be+名词词组（no wonder, an honor, a good thing, a pity, no surprise, etc.）+that从句It+be+过去分词（said, reported, thought, expected, decided, announced, arranged, etc.）+that从句（2）that可以省略，但that从句位于句首时，that不能省略。
2、宾语从句（1）常见的可以接that从句作宾语的动词有see, say, know, imagine, discover, believe, tell, show, think, consider, be sure, be afraid等。
在可以接复合宾语的动词之后，如think, make, consider等，可以用it作形式宾语。
（2）That从句一般不能充当介词宾语，偶尔可作except, in 的宾语。
3、表语从句（that不可省略）4、同位语从句连词that引导同位语从句时，应在某些抽象名词之后，如：fact, hope, desire, thought, suggestion, idea, news, problem, possibility等，对前面的名词起补充说明的作用，that在从句中不担当任何成分，不能省略。
二、whether/if从句1、在表语从句和同位语从句中只能用whether不能用if;当主语从句放于句首时，只能用whether不用if;当it作形式主语，主语从句放在句末时用whether或if均可；discuss后引导宾语从句时，必须用whether。
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。
高中英语知识点归纳名词性从句
高中英语知识点归纳名词性从句名词性从句是英语中的一个重要语法知识点，它在句子中起着名词的作用。
名词性从句一般由连接词引导，可以作主语、表语、宾语、同位语等。
它的运用能够使句子更加丰富多样，增加表达的灵活性。
本文将对名词性从句的几种常见情况进行归纳总结。
一、名词性从句作主语名词性从句可以作为句子的主语，它承担了动词的逻辑主语的地位。
常用的连接词有：that, whether, if等。
1. 引导词为that的情况：例如：That he didn't come as he had promised was disappointing.翻译：他没有按照承诺的那样来，真令人失望。
2. 引导词为whether/if的情况：例如：Whether he will come or not remains unknown.翻译：他是否会来还是个未知数。
二、名词性从句作表语名词性从句可以作为句子的表语，表达主语的性质、特点、状态等。
常用的连接词有：that, whether, what等。
例如：It is unclear whether he is telling the truth or not.翻译：他是否在说真话还不清楚。
三、名词性从句作宾语名词性从句可以作为句子的宾语，接在及物动词、介词后面。
常用的连接词有：that, whether, if, what, who, whom, which, whose等。
1. 当宾语从句是及物动词的宾语时，常用连接词是that。
例如：He said that he would come tomorrow.翻译：他说他明天会来。
2. 当宾语从句是介词的宾语时，常用连接词是whether/if, 当介词为介词to时，连接词也可以用为不定式to。
例如：She is not sure about whether/if he will join us.翻译：她不确定他是否会加入我们。
高中英语2024届高考名词性从句知识分类讲解(主语从句+宾语从句+表语从句+同位语从句)
高考英语名词性从句知识讲解名词性从句是指在复合句中起名词作用的句子，功能相当于名词词组。
名词性从句在复合句中能作主语、宾语、表语、同位语等，根据在句中的语法功能可分为主语从句、宾语从句、表语从句和同位语从句。
一、主语从句【定义】在复合句中，作主语的句子称为主语从句。
常见的连接词：（连接词在句中不能省略）that, whether, who, what, whatever, whoever, where, when, why, how等。
【用法】1.连接词 that 引导That we should learn English well is very important.主语从句中 we should learn English well句子完整，不缺成分，用that引导，that 不能省连接词whether，if 引导whether 引导的主语从句可放句首，也可放句中，表“是否”if 引导的主语从句只能引导动词后的宾语Whether I will go or not depend on the weather.It remains to be seen whether / if they can finish the task in time.2.连接代词what, who, which, whose, whatever, whichever，whoever等引导What matters most is your attitude.3.连接副词when，where，why，how等引导How he made it is still unknown.4.it作形式主语为了避免句子头重脚轻，通常把形式主语it放在句首，真正的主语放在句子后面。
常见句型：(1) It is + n.+ that + 句子It is +（a pity / a shame / a fact …）+ that ...(2) It is + adj.+ that + 句子It is +（true / clear / important …）+ that ...(3) It is + 过去分词 + that + 句子It is+ said / announced / expected / believed / hoped… + that ...(4) It seems /appears / happens / turned out that + 句子(5) It hit sb./occurred to sb.that + 句子二、宾语从句【定义】在复合句中，作宾语的句子称为宾语从句。
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subject clause
宾语从句
名词性从句 noun clause
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) 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? (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)
Exercises: “it”作形式主语或形式宾语：
A 1.I hate ____ when people talk with their mouths full． A. it B. that C. these D. them B 2. I feel ____ strange that he should be so careless. A. / B. it C. that D. how B 3. It worried her a bit ____ her hair was turning grey. A．while B. that C．if D．for 4 Will you see to ____ that the luggage is brought back? C A. we B. yourself C. it D. them
1.It + be + 形容词 ＋ that从句
It is necessary / important/ obvious that…
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……
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） 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 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
表语从句 在复合句中作主句的表语.引导表语从句的关 联词与引导主语从句的关联词大致一样
1.问题是我们和他已失去联系.
The problem is_________________________________ that we have lost touch with him.
2.这就是亨利怎么解决这个问题的.
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 suggested (requested, proposed, desired, etc.) that…
宾语从句
宾语从句就是在复合句中作宾语的 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)
1.That he is a famous singer is known to us. (It is known to us that he is a famous singer.) 2.When he will go to America is not yet fixed. (It is not yet fixed when he will go to America.)
用whether或if引导的宾语从句， 其主语和谓语的顺序也不能颠倒， 仍保持陈述句语序。此外， whether与if 在作“是否”的意思 讲时在下列情况下一般只能用 whether，不用if： a. 引导主语从句并在句首时；b. 引导表语从句时；c . 引导从句作 介词宾语时；d. 从句后有“or not” 时；e. 后接动词不定式时。
1.
注意：在demand，order，suggest，
decide，insist, desire, request, command, doubt等表示要求、命令、 建议、决定等意义的动词后，宾语从 句常用“（should）+ 动词原形”。 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。
This is____________________________. how Henry solved the problem.
我认为他不会来这里. I think he won’t come here. I don’t think he will come here.
( (
) )
注意宾语从句中的时态呼应，当主 句动词是现在时，从句根据自身的句 子情况，而使用不同时态。例如： I know (that) he studies English every day. I know (that) he studied English last term. I know (that) he will study English next year. I know (that) he has studied English since 1998.
2.It + be + -ed分词 ＋ that从句
3.It + be + 名词 ＋ that从句
It is common knowledge that… …是常识 It is a surprise that …. 令人惊奇的是… It is a fact that…… 事实是…… It appears that… 似乎… It happens that …. 碰巧… It occurred to me that…… 我突然想起……
4.
当主句动词是过去时态（could, would除外），从句则要用相应的 过去时态，如一般过去时，过去进 行时，过去将来时等；当从句表示 的是客观真理，科学原理，自然现 象，则从句仍用现在时态。例如： The teacher told us that Tom had left us for America．
不可省略的连词：
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.
1.
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.
Exercises
1_________ in the regulations that you should not tell other people the pass word of your e-mail account. .(2005 上海) A. What is required B .What requires 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 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 C .that D. how
宾语从句中用it作形式宾语
注意：如果主句中有形容词或名词作宾语补足 语时，一般用it来作形式宾语，把从句放在宾 补后面。 We think it our duty that we should help others. 我发现他两天之内完成工作是不可能的.
I find it impossible that he can finish the work in two days.
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.