英语名词性从句讲解
高考英语语法完全讲解——名词性从句课件(共17张PPT)
三、what/whatever与
which/whichever的区别
what/whatever意为“什么/无论什么”，描述的事物在上下 文中没有范围；which/whichever意为“哪个/无论哪个”， 描述的事物在上下文中有范围。 To be honest, I can hardly understand what/whatever you have said. Here is the dress. This is what I have been dreaming of. Here are many beautiful dresses. You can choose whichever you like.
高考英语语法完全讲解 名词性从句
定义及分类
在句中起到名词所能充当的句子成分的从句称之 为名词性从句，名词常用来作主语、宾语、表语、 同位语，因此，对应的名词性从句可以分为四大 类：主语从句、宾语从句、表语从句、同位语从 句。
主句从句
1、作句子主语的从句叫作主语从句。 2、为避免句子头重脚轻，常用形式主语it代替主语从 句，把主语从句置于句尾。常用的句型有：It is/was+ 形容词/名词/过去分词+that从句。
表语从句
位于系动词之后作表语的从句叫表语从句。 The problem is who is to pay and when we can start.
同位语从句
同位语从句说明其前面名词的具体内容。通常由that引 导，常接同位语从句的名词有：news, conclusion, possibility, rumor, certainty, story, word, mystery, idea, doubt, hope, truth, question, belief, fact, message, evidence, information, explanation, rule, probability, question, wish, thought, statement, report, opinion, principle等。
高考英语三大从句(名词性从句、定语从句、状语从句)讲解+练习(附答案)
高考英语三大从句讲解+练习（附答案）【名词性从句】名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。
因此，名词性从句成分为主语从句、表语从句、宾语从句和同位从句。
（一）引导名词性从句的连接词1、连接代词：who, whose, whom, what, which。
有词义，在从句中担任成分，如主语、表语、宾语、或定语等。
2、连接副词：when, where, why, how。
有词义，在从句中担任成分，作状语。
3、连接词：that, whether, if, as if。
that 无词义，在从句中不担任成分，有时可省略；if (whether), as if虽有词义，但在从句中不担任成分。
1. 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。
有时为避免句子头重脚轻，常用形式主语it代替主语从句作形式主语放于句首，而把主语从句置于句末。
主语从句后的谓语动词一般用单数形式。
常用句型如下：（1）It + be + 名词+ that从句（2）It + be + 形容词+ that从句（3）It + be + 动词的过去分词+ that从句（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 a pity (a shame, no wonder, etc.) that…It is suggested (requested, proposed, desired, etc.) that…注意：连词that, whether在从句中不担任句子成分，只起连接作用，不能省略。
高中英语语法讲解素材_名词性从句
高中英语语法讲解——名词性从句一、名词性从句的三类连词名词性从句包括主语从句，表语从句，宾语从句和同位语从句。
根据这些从句的共同特性，名词性从句的连词主要可以分成三类：that, if/ whether和wh-(疑问词)。
1．如果一个陈述句被用来作为另一个句子的主语、表语、宾语或同位语，那么我们一般要用that作为连词。
that本身在句子中没有意思，只起连接作用。
eg. 陈述句：Science is developing very fast.主语从句：It is known to all that science is developing very fast.表语从句：The fact is that science is developing very fast.宾语从句：Everyone knows that science is developing very fast.同位语从句：The fact that science is developing very fast is known to all.2．如果一个一般疑问句被用来作为另一个句子的主语、表语、宾语或同位语，那么我们要用whether或if作为连词。
whether/ if在句子中的意思是“是否”。
变成名词性从句后，原来的疑问句的词序要改成陈述句的词序（主语+谓语）。
eg. 一般疑问句：Shall we have a meeting this afternoon?主语从句：Whether we shall have a meeting this afternoon hasn’t been decided yet.或：It hasn’t been decided yet whether we shall have a meeting this afternoon.表语从句：The question is whether we shall have a meeting this afternoon.宾语从句：Do you know whether we shall have a meeting this afternoon?同位语从句：None of us can answer the question whether we shall have ameeting this afternoon.注意：原来的疑问句词序在从句中都被改变成陈述句的词序，复合句的标点符号由主句的句型决定。
高考英语复习 名词性从句讲解
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 。
初中英语语法专题—名词性从句讲解
初中英语语法专题—名词性从句讲解名词性从句是由连接词引导的从句，用作名词的成分，常常在句子中充当主语、宾语、表语、同位语等，起到连接主句与从句的作用。
下面就是名词性从句的不同类型及其用法：主语从句主语从句作为句子的主语部分，通常由连接词 "that" 或"whether" 引导。
例如：- That he is late is not surprising.（他迟到了并不令人惊讶。
）That he is late is not surprising.（他迟到了并不令人惊讶。
）- Whether we can win the game is uncertain.（我们是否能赢得比赛还不确定。
）Whether we can win the game is uncertain.（我们是否能赢得比赛还不确定。
）宾语从句宾语从句作为句子的宾语，通常由连接词 "that" 或 "whether"引导。
例如：- I wonder whether he has finished his homework.（我想知道他是否完成了他的作业。
）whether he has finished his homework.（我想知道他是否完成了他的作业。
）表语从句表语从句用来补充说明主语的性质或状态，通常由连接词"that" 或 "whether" 引导。
例如：- The truth is that he is a good student.（事实是他是个好学生。
）that he is a good student.（事实是他是个好学生。
）- My concern is whether he understands the instructions.（我关心的是他是否理解了这些指示。
）whether he understands the instructions.（我关心的是他是否理解了这些指示。
英语高中名词性从句练习题及讲解
英语高中名词性从句练习题及讲解在一个阳光明媚的午后，小明坐在窗边，手里拿着一本英语书，眼睛却望着窗外的蓝天白云。
他心里想，要是能把英语学得像家乡的方言一样溜，那该多好啊！突然，他的脑海中浮现出了一个奇妙的想法：用家乡的俚语来练习英语名词性从句。
这样既能增加学习的趣味性，又能加深对英语的理解。
于是，他拿起笔，开始创作起来。
1. 定语从句：小明的狗，它的名字叫做“旺财”，是村里最聪明的。
- 翻译：The dog of Xiaoming, which is named "Wangcai", is the smartest in the village.2. 主语从句：谁都知道，小明的英语成绩是班上最好的。
- 翻译：It is known to all that Xiaoming's English gradeis the best in the class.3. 宾语从句：老师经常告诉我们，学习英语没有捷径。
- 翻译：The teacher often tells us that there is noshortcut in learning English.4. 同位语从句：小明的梦想，那就是成为一名英语老师。
- 翻译：Xiaoming's dream, that is to become an English teacher.5. 表语从句：事实就是这样，小明的英语水平已经很高了。
- 翻译：The fact is that Xiaoming's English level isalready very high.小明一边写，一边忍不住笑出声来。
他想象着同学们用家乡话读这些句子的样子，一定很有趣。
他决定把这些练习题带到课堂上，让大家一起分享这份快乐。
老师走进教室，看到小明的练习题，也被逗笑了。
他决定把这些练习题加入到课程中，让全班同学都来练习。
就这样，小明的创意不仅让自己的英语学习变得更加有趣，也让整个班级的学习氛围变得更加活跃。
高中英语名词性从句详细讲解PPT课件
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.
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
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。
Whether there is life on the moon is an interesting question.
(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）
高考英语二轮复习整理---名词性从句讲解
名词性从句在英语中，句子可分为简单句和复合句，复合句即常说的“从句”。
由一个主句和一个（或几个）从句构成的句子叫主从复合句。
在复合句中，我们是根据从句在整个句子中所充当的成分来给复合句命名的。
如：主语从句，宾语从句，定语从句，等等。
所有的复合句中，“主语从句，宾语从句，表语从句，同位语从句”，他们的从句有名词性特征，因此合称为“名词性从句”。
名词性从句的引导词引导词是否在名词性从句中充当成分的情况充当成分：连接代词： what, which, who, whom, whose，whatever, whoever, whichever,不从当成分：连接副词： when, where, why, how, however只起连接的作用：that, if/whether, because（that引导的名词性从句，既不作任何成分，也无意义，只是表明从句是一种陈述语气，起个连接作用；if不能引导表语从句和同位语从句，if引导主语从句时不能置于句首，if引导宾语从句时，只能置于及物动词后，不能置于介词后；because只能引导表语从句）㈠主语从句（用作主语的从句叫做主语从句）1．that从句作主语That引导的主语从句可位于句首直接作主语;也可以位于句末，用it作形式主语;① That we are invited to a concert this evening is a piece of good news for us.②It is obvious that the earth is round.2．whether/if（是否）从句作主语同样可放句首或句末，但放句首只能用whether，不能用if.①Whether we shall go or stay ,is uncertain.②It was not known whether/if he would ask.3． whoever, whichever, whatever, however引导主语从句只能放句首。
高中英语语法--名词性从句专项讲解及训练
名词性从句名词性从句一．概述：在句子中起名词作用的各种从句统称为名词性从句。
根据它们在句中的语法作用，这类从句又可分为主语从句、表语从句、宾语从句和同位语从句。
四．if, whether的区别1.引导主语从句时，如果主语从句放在句首，只能用whether不能用if引导，但是如果用it 做形式主语，而把主语从句放在句末时，也可以用if引导.2.引导宾语从句时常放在动词know, ask, care, wonder之后，if和whether均可。
3.在介词后面的宾语从句中，在表语从句、同位语从句中，表“是否”，只能用whether；4.whether和if都可以和or not连用,但是whether 之后可以直接跟or not,而if不可以。
I don’t know whether or not I will stay.（只能用whether）5.在不定式前只能用whether.如：I can’t decide whether to stay. 我不能决定是否留下。
五．与“命令、要求、建议”等相关的名词性从句中通常用虚拟语气，虚拟语气的构成是“should＋动词原形”或省去should，直接用动词原形。
六．名词性从句以考查引导词为主，同时考查时态，语序，与其它从句的区别以及混同虚拟语气的考查。
一．主语从句1.主语从句定义：在复合句中充当主语的句子叫做主语从句。
That he will succeed is certain.Whether wild life can be well protected is of great importance.Who will go makes no different.Which kind of food is the best is still not certain.What is needed for the space trip is careful preparation.How we can help the twins will be discussed at the meeting.When they’ll start the project has not been decided yet.Where he hid the money is to be found out.Why dinosaurs died out remains a puzzle.2.主语从句引导词按照在句中是否做成分主要分为三类：连词that、whether、if 连接代词、连接副词。
高考英语复习语法知识专题讲解15---名词性从句(解析版)
高考英语复习语法知识专题讲解专题十专题十五五 名词性从名词性从句句名词性从句的句法功能相当于名词词组，在句中充当主语、宾语、表语、同位语、介词宾语等。
因此名词性从句又分为主语从句、宾语从句、表语从句和同位语从句。
类别功 能 引 导 词 从属连词只起连接作用，不充当句子成分 that, whether, if 连接代词 起连接作用，并充当主语、宾语、表语或定语 who, whom, whose, which, what, whatever, whichever,whoever连接副词 起连接作用，并充当从句状语when, where, how, why 一、主语从句的易错点主语从句的一般结构主语从句＋谓语动词＋其他 How the book will sell depends on its author. That he is the best student in the class is obvious.it 作形式 主语时的主语从句 It+be/becomes/became+形容词／名词／过去分词＋主语从句 It is still a question whether she will come or not. It became clear that Mary did make a mistake. It seems/ appears/ happens 等动词＋that 从句 It seems strange that he should have done a thing like that. It happens that he can understand a little about thelanguage. It remains to be+过去分词＋主语从句It remains to be seen who will be the victor in the contest.It doesn't matter +how/whether 从句 It doesn't matter whether he is wrong or not.It doesn't matter much whether we go together orseparately.用来表示惊奇、怀疑、惋惜、理应如此等语气时，主语从句谓语动词用（should) do 形式 It is necessary /important / natural /strange 等＋that 从句It is necessary that one(should)obey the law.It is suggested /requested /proposed/desired 等＋that 从句It is suggested that you (should) attend the openingceremony.二、宾语从句的易错点动词后的宾语从句主语＋及物动词＋宾语从句I know that he is an honest boy.Can you tell me how I can get to the zoo?I wonder if/whether you have told the news to Li Lei.They asked what Jean was doing now.Do you know who has won Red.Alert game?feel, think, find, consider, make等，常用it作形式宾语，宾语从句后置I find it important that.we should keep calm in danger.You may think it strange that he would live there.I feel it a pity that I haven't been to the get-together.I have made it a rule that I keep diaries.like, dislike, love, hate, enjoy,appreciate等不能直接跟宾语从句，必须用it作形式宾语，后接宾语从句I like it that everyone passed the exam.I hate it when they talk with their mouths full of food.think, believe, suppose, 等词后的宾语从句若是否定的，否定词要转移到主句的谓语动词上I don't think your answers are right.I don't believe that man is killed by Jim, is he?介词后的宾语从句介词后可接宾语从句，但连接词whether 不可换作ifHe often thinks of how he can make his class lively.She worries about whether she's really good enough.非谓语动词之后的宾语从句不定式、v.-ing形式、过去分词后也可以接宾语从句I'd just tried to do what I could for you.I suggest eating what is fresh.宾语从句中的时态主句谓语动词为一般现在时，从句时态根据实际情况而定Do you know when the ancient games began?主句谓语动词是一般过去时，从句的时态一般用适当的过去时态He asked me if I was reading the textbook when he wasin.当宾语从句为客观真理和规律时，则用一般现在时He said that light travels faster than sound.whether与if 引导宾语从句的区别与 or not 连用时，只用 whether I want to know whether or not the train goes to KingStreet.＂whether+不定式”结构作宾语，相当于一个宾语从句；if无此用法I don't know whether to go there.介词后面的宾语从句中只用whetherI'm not interested in whether he has a lot of money.if引导的条件句中，如果再有表示“是否”的引导词引导宾语从句时，只用 whetherHe asked me whether I'd move to Beijing if I got the job.doubt 在肯定句中，接whether 和if引导的宾语从句；但在否定句中，只用 thatWe don't doubt that he is a brave man.I doubt whether/if Jack could manage a sailing boat.三、表语从句的易错点表语从句常位于连系动词be, look, remain, seem等之后，其连接词还有as if/though,because等主语＋系动词＋表语从句The trouble is that we are short of money.He looked just as he had looked ten years before. The question is whether they will be able to help us. The problem is who we can get to replace her.I think it is because you are doing too much.The question is which of us should go.because 引导表语从句强调原因，why引导表语从句强调结果It's because you're careless.That is why stone walls are used instead of fences around New England fields.the reason why 从句＋be + that 从句The reason why he was absent was that he was ill.what 从句＋be+that从句What comforted the young mother was that the babycame to life.It looks/seems as if/though 从句It looks as if it is going to rain.At that time, it seemed as if I couldn't think of the right word anyhow.主句主语是advice, demand, suggestion, order，requirement, idea, request，command等时，表语My advice is that you(should)quit smoking.从句用虚拟语气，即谓语动词用（should)do 形式My suggestion is that we(should)start early tomorrow. Our only request is that this(should)be settled as soon as possible.四、名词性从句其他易错点that与what 在名词性从句中的区别what 充当成分，意为...的事物不可省略；that 不作任何成分，只起连接作用，也无实际意义，有时可以省略I only knew(that)he was studying in a western country,butI didn't know what country he was in.What you need is more practice.That you will win the medal seems unlikely.名词性从句已有疑问引导词时，不再用thatI don't understand what you said just now.(understand 后不再用 that)2021高考英语语法高考英语语法【【名词性从句名词性从句】】易错点对点训练30题I.高考真题诊断·单句语法填空1.Every year, makes the most beautiful kite will win a prize in the Kite Festival.2.She asked me I had returned the books to the library, and I admitted that I hadn't.3.The manager put forward a suggestion we should have an assistant. There is too much work to do.4.As natural architects,the Pueblo Indians figured out exactly thick the adobe walls needed to be to make the cycle work on most days.5.If you swim in a river or lake,be sure to investigate is below the water surface.Often there are rocks or branches hidden in the water.【答案详解】1.whoever解析：句意：每年，无论谁做出最漂亮的风筝都将会在风筝节获奖。