高二英语名词性从句讲解

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。

高二英语名词性从句知识精讲高二英语名词性从句知识精讲人教版一. 本周教学内容：第五单元语法：名词性从句1. 名词性从句2. 同位语从句3. 同位语从句与定语从句的辨析4. what; whatever; whoever; where引导的名词性从句5. it 作为形式主语的句型二. 知识总结与归纳：（一）名词性从句的结构：名词性从句起名词作用在句中做主语，表语，宾语和同位语构成：主语从句；表语从句；宾语从句和同位语从句。

引导名词性从句的连词有三类：that；whether; wh-疑问词。

例句：1.The result of this French influence was that the English language ended up with many French words such as table, animal and age.2. They realize that it is of great value to record and teach them to the younger generation.3. I want to tell the reader that these hills and fields are most beautiful, with many small and clear rivers, and rich fields bearing fruit and grain.4. Some people feel that Wales is an ancient fairy land.5. What interested him was that the whole world had been mapped 70 years before Columbus.6. What is certain that the book has made many people think about the achievements of Zheng He and other Chinese captains and their role in discovering the world.7. That most of these are now threatened and may disappear is a serious matter to the people in Britain.8. This gave him the idea that the Chinese perhaps first discovered America.（二）同位语从句在名词idea; fact; news; thought; suggestion/advice; problem; proof等词后面带上that+陈述句这部分从句解释了前面的那些名词所指的内容，与那些名词起着同等作用的句子成分，叫同位语从句。

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。

名词性从句一、名词性从句与简单句的区别在英文中，名词或名词短语主要充当四种句子成分：主语、宾语、表语和同位语。

如果把句子当作名词来用，分别充当另一句话的主语、宾语、表语或同位语，于是便构成了四种从句：主语从句、宾语从句、表语从句和同位语从句。

因为这四种从句在本质上相当于名词的作用，所以将其统称为名词性从句。

请看下表：在英语中，相当于名词作用的句子有三类，陈述句、一般疑问句以及特殊疑问句。

因此，名词从句就是用三种句子来分别充当另外一个句子的四种句子成分，者就构成了名词从句的本质特征。

但是，这三种句子不是直接放在另一个句子中作成分，而是要作各种变化调整。

接下来将具体讨论。

二、陈述句作句子成分1. 要在陈述句句首加上t hat用”that+陈述句”这一结构分别充当另一个句子的四种成分。

2.为什么要加that?对于陈述句，为什么要在其句首加that 后才能用它作成分呢？而为什么在宾语从句中that 又可以省去呢？因为在英文中，句子的核心意思主要是靠谓语部分来表达，一个句子只表达一个核心意思，也就是只能有一个谓语部分。

而添加that，相当于一个“指路牌”，能够帮助我们指明段句的方向，而不至于造成歧义。

而对于宾语从句，主句的谓语已经出现，后面所接的成分自然是谓语，所以在不会影响句子的意思下，是可以把that 省去的。

三、一般疑问句作句子成分1.用w hether 或if 引导先将疑问句的倒装语序变成陈述句语序(即主语放在谓语的前面)，并在句首加上whether 或if（if 只用在宾语从句中）来引导，以保留原句的疑问意义。

即“whether+陈述句”2. if 还是 whether?1)if 一般只用于引导宾语从句，而 whether 可引导宾语从句在 内的其他名词从句。

IF he comes or not makes no difference. 成 Whether he comes or not makes no difference.2)if 不和 or not 直接连用，即一般不说 if or not, 但可以说 if...or not 。

各类从句详解英语从句可以分为名词性从句、定语从句和状语从句三大类：下面我们逐一进行说明：一、名词性从句（主语从句、表语从句、宾语从句、同位语从句）主语从句、表语从句、宾语从句和同位语从句在复合句中的充当的成分和其名称相同，分别作主句的主语、表语、宾语和同位语。

上述这四种从句均被称为名词性从句。

所有的名词性从句均不能用逗号分开，并且它们都用相同的关联词，关联词如下：①主从连词：that (无意义), whether (是否), if (是否)（在句子中不充当任何成分）②连接代词：who (谁), whom (谁), whose (谁的), what (什么), which (哪一个)③连接副词：when (什么时候), where (什么地方), how (怎样), why (为什么)主从连词只起连接作用，连接代词和连接副词除了起连接作用外，还充当从句某一个成分。

另外，可以用whatever, whichever, whoever, who(m)ever等连接代词引导名词性从句，来加强语气。

下面分别对各种名词性从句进行介绍（一）主语从句（subject clause）在主句中用作主语的主谓结构称之为主语从句。

例如：That he will come to the discussion is certain.他来参加讨论是确定的。

That the moon moves round the earth is well known to all of us.月球绕地球转动，这是我们大家都熟知的。

When the meeting is to be held has not yet been decide.会议什么时候召开还没有决定。

主语从句放在句首，句子常常显得比较笨重，因此通常可以把it放在句首，作形式主语，而将主语从句放在后面。

例如上面的句子可以分别改写为：It is certain that he will come to the discussion.It is well known to all of us that the moon moves round the earth.It has not yet been decide when the meeting is to be held.下面再举一些例句：What they are after is profit.他们追求的是利润。

高二英语名词性从句通用版【本讲主要内容】名词性从句：1. 主语从句，表语从句，宾语从句和同位语从句的结构2. 名词性从句的连词及用法3. It在名词性从句中的用法【知识总结归纳】（一）名词性从句起名词性作用在整个句子当中充当以下作用：1. 做主语，成为主语从句：例：That most of these are now threatened and may disappear is serious matter to the people in Britain.2. 做宾语构成宾语从句：例：They realise that it is of great value to record and teach them to the younger generation.3. 做表语构成表语丛句：例：The result of so much French influence was that the English language ended up with many French words such as table, animal and age.4. 在idea , plan , thought , fact , news, hope, possibility agreement等名词后面解释这些名词的内容，做这些名词的同位语构成同位语丛句。

例：The idea that England stands for Fish&Chips, Speakers’ Corner, Big Ben and the Tower of London is past.（二）名词性从句的连词：名词性从句必须有一个连词引导。

根据名词性从句表达的内容使用不同的连词。

1. 从句表达陈述的内容用连词that引导：例：（1）That it is a competition between two of the oldest and most famous universities in the world may be new to you.（2）The result that Oxford beat Cambridge by afoot in 2003 surprised many.（3）Do you know that there is a boat race between Oxford and Cambridge every year ?（4）One of the biggest chanllenge is that what Menzies believes to be America on the map is, perhapes, Antartica.（5）The reason seems to be that different periods are related to different kinds of achievement.注意：在宾语从句中that可以省略。

名词性从句讲解在复合句中起名词作用的从句叫做名词性从句。

它包括主语从句、宾语从句、表语从句和同位语从句。

名词性从句是中学阶段的一个重要语法项目，在历年的高考中几乎都涉及到，并且每年的命题各有变化。

分析历届高考试题名词性从句考查的焦点主要有以下六个方面1. 考查名词性从句的语序问题2. 考查引导词that与what的区别3. 考查it在名词性从句中作形式主语或形式宾语的用法4. 考查whether与if的区别5. 考查名词性从句中的疑问词+ever引导的名词性从句与no matter+疑问词引导的状语从句的区别6. 考查名词性从句的虚拟语气问题语法要点剖析一、名词性从句主语从句、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。