高中英语语法难点讲解名词从句教师专用

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。

高考英语名词性从句语法知识点讲解高考英语名词性从句语法学问点讲解名词性从句指充当名词成分的从句，下分许多类型，是英语学习的重点，详细都有哪些学问点呢?我整理了相关资料，盼望能关心到您。

主语从句宾语从句表语从句同位语从句作及物动词宾语作介词宾语that一般不省略可以省略一般不省略一般不省略一般不省略Whether/if(是否)放于句首时只用whether用whether/if均可，但有区分只用whether只用whether只用whether特别疑问词留意语序要用陈述语序名词性关系从句留意语序要用陈述语序一、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,pro bable,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，间或可作except, in 的宾语。

名词性从句teaching plan一、学情分析名词性从句是高中阶段学生接触到的较难的语法点，很多学生分不清楚名词性从句，定语从句和状语从句之间的区别，经常出现混用的现象。

但在高考中名词性从句为必考项目，甚至在学业水平考试中都有要求，因此，学生复习名词性从句的用法有着重要意义，它对于学生分辨各种复合句有一定的指导作用，扫除名词性从句的障碍可以有助于学生学习其他的复合句，并对其书面表达和语法填空的提高有指导意义。

二、教学目标1.知识与技能A．复习名词性从句的种类及构成；B．正确辨识并使用名词性从句的连接词；C．复习it作形式宾语在句子中代替宾语从句。

2. 过程与方法A．图解法B．列举法C．讲授法D．演示法3. 情感态度与价值观A．培养学生的规范语言表达；B．让学生体会语言的灵活多变。

C．让学生体验学习的乐趣和成功的喜悦。

三、教学重、难点1.名词性从句的作用；2.正确判断并使用连接词；3.名词性从句的表现形式；4.It作形式主语和形式宾语的用法。

四、教学方法：1.合作交流，小组讨论。

2.自主学习，独立思考。

3.探究学习。

五、渗透法制教育教学步骤：Before class：一．先学任务1.复习五种简单句中的“主+谓”结构、“主+谓+宾”结构、“主+系+表”结构；2.对比以下几个句子，区分其分别属于哪种从句。

1）What she said was right. （主从）2）I have no idea how she did it.（同位语从句）3）It’s a pity that you failed the exam.（主从）4）I’m sure that I will see you again.（宾从）5）What I want to know is when we’ll leave for Beijing.（主从、表从）6）Teachers consider it necessary that students should finish their homework.（宾从）3. 用适当的连接代词或连接副词填空。

（直击高考）2013高考英语语法重难点系列专题10 名词性从句考点在句子中起名词作用的句子叫名词性从句(Noun Clauses），引导名词性从句的词叫连词。

名词性从句又分别称为: 主语从句、宾语从句、表语从句、同位语从句主语从句：是在复合句中充当主语的从句，常放在谓语动词之前或者用形式主语it代替，将其本身放在句尾。

例如：1. That he came here just now has been proved.他刚才来的这里得到了证实。

解析：That he came here just now在谓语has been proved的前面，所以是主语从句。

2. It’s true that we are going next week.我们下星期走是真的。

解析：真正的主语是 that we are going next week，前面的i t是形式主语。

宾语从句：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）和介词之后。

例如：1. We all know what he is.我们都知道他是干什么的。

解析：what he is作及物动词know的宾语从句。

2. His worry is about whether he can succeed.他的担忧是关于他是否能成功。

解析：whether he can succeed作介词about的宾语从句。

表语从句：在复合句中作表语的名词性从句，放在系动词之后，一般结构是：主语+联系动词+表语从句例如：1. His question is where he can buy a house.他的问题是他能在哪里买房子。

解析：where he can buy a house是联系动词is后面的表语从句。

2. This is why we can’t get their support.这就是我们得不到他们支持的原因。

解析:why we can’t get their support是联系动词is后面的表语从句。

2023年高中英语语法：名词性从句讲解及考点全攻略复合句之名词性从句讲解复合句由一个主句和一个或一个以上的从句构成，指的是含有两个或更多的主谓结构的句子，其中有一个（或更多）主谓结构充当句子的某一（些）成分，如主语、宾语、表语、定语、状语、同位语等。

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)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。

eg. What the baby want to do is not clear.除此之外，还会采用形式主语it句型：(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2)宾语从句名词句用作宾语的从句叫宾语从句。

引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样，在句中可以作谓语动词或介词及非谓语动词的宾语。

(1)由连接词that引导的宾语从句在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”。

(2)用who，whom, which, whose, what, when, where, why, how, whoever, whatever, whichever等关联词引导的宾语从句相当于特殊疑问句，应注意句子语序要用陈述语序。

2023届高考英语语法难点讲义：名词性从句考点精析1. that省略问题①只有用在单一的宾语从句才可以省略；②而在并列宾语从句和主语从句、表语从句以及同位语从句都不可以省略。

If we are serious about ensuring (that)our science is both meaningful and reproducible, we must ensure (that)our institutions encourage that kind of science.如果我们真的要确保我们的科学既有意义又可复制，我们就必须确保我们的机构鼓励这种科学。

(动词后只有一个宾语从句，that可以省略)To realize how great was the dramatic activity, we must rememberfurther that hosts of plays have been lost, and that probably there is no authorof note whose entire work has survived.要想认识到戏剧活动的伟大之处，我们必须进一步记住，许多戏剧已经消失，而且可能没有一位著名作者的全部作品留存下来。

(remember后面跟着两个宾语从句，that不可以省略)2. whether& if替换问题只有在宾语从句中，whether可以用if替换，但是下面的几种情况例外：①whether or not搭配(三个词紧跟一起只能用whether，如果or not放结尾依然可以使用if替换)；②介词+whether。

③在动词不定式之前只能用whether；④宾语从句放在句首表示强调时，只能用whether；⑤用if引起歧义时，只用whether。

Since our chief business with them is to enable them to share in a common life we cannot help considering whether or not we are forming the powers whichwill secure this ability.由于我们对他们(年轻人)所做的首要工作在于使他们能够在生活中彼此融合，所以我们就禁不住考虑自己是否正在形成一种确保他们获得这种能力的力量。

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。

高考语法重难点解析一、名词性从句名词性从句是指在句子中充当名词的从句，包括主语从句、宾语从句、表语从句和同位语从句。

在高考英语中，名词性从句属于较为重要的考点之一。

1. 主语从句主语从句在句中充当主语，常用连接词有that, whether, if, who, whom, whose, what, which等。

如：- That he is innocent is beyond doubt.（宾语从句）- Whether he will come to the party is still uncertain.（主语从句）注意：当主语从句以It, There作形式主语时，从句要置于句末。

如：- It doesn't matter if you don't like the film.- There seems to be something wrong with my watch.2. 宾语从句宾语从句在句中充当宾语，常用连接词有that, whether, if, who, whom, whose, what, which等。

如：- I don't know if/whether she will come to the party.- They asked me who/whom I was waiting for.注意：在动词和介词后，宾语从句不能用连接词that，而要用连接词whether或if。

如：- He asked me whether/if I had finished my homework.- I'm not sure whether/if he is telling the truth or not.3. 表语从句表语从句在句中充当表语，常用连接词有that, whether, if, who, whom, whose, what, which等。

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。

高中英语语法——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。

教资面试高中英语语法归纳总结高中英语语法是教师资格面试中的一个重要考点，掌握高中英语语法知识对于备考教资面试至关重要。

本文将对高中英语常见语法知识进行归纳总结，帮助考生更好地备考面试。

一、名词(Noun)1. 名词的分类名词分为可数名词和不可数名词两种。

可数名词具有单数和复数形式，而不可数名词只有单数形式。

例：可数名词：book (单数) books (复数)不可数名词：water (单数)2. 名词的所有格名词所有格表示所属关系，通常在名词后面加's。

例：Tom's book (汤姆的书)3. 名词的复数形式可数名词的复数形式通常在词尾加-s或-es，但也有不规则变化的形式。

例：book (单数) books (复数)child (单数) children (复数)二、代词(Pronoun)1. 人称代词人称代词分为主格和宾格两种形式。

主格出现在句子的主语位置，宾格出现在句子的宾语位置。

例：I am a teacher. (主格)She is my friend. (宾格)2. 物主代词物主代词用来表示所属关系，有形容词性和名词性两种形式。

形容词性物主代词修饰名词，名词性物主代词作为名词的替代词。

例：This is my book. (形容词性物主代词)The book is mine. (名词性物主代词)三、动词(Verb)1. 动词的时态英语动词的时态有过去时、现在时和将来时。

不同时态对应不同的动词形态。

例：I went to the park yesterday. (一般过去时)She is watching TV now. (现在进行时)We will visit our grandparents next week. (一般将来时)2. 动词的语态动词的语态分为主动语态和被动语态。

主动语态表示主语是动作的执行者，而被动语态表示主语是动作的承受者。

例：He wrote a letter. (主动语态)The letter was written by him. (被动语态)四、形容词(Adjective)1. 形容词的比较级和最高级形容词的比较级用于比较两个人或物的程度，最高级用于比较三个或三个以上人或物的程度。

【高中英语】高中语法讲解之名词性从句一、引导名词性从句的连接词1.连接代词：who，who，who，what，who，what，who，what，它具有词义，在一个从句中充当一个成分，如主语、谓语、宾语、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：指没有意义且不作为从句中的一个成分的、是否、如果、asif。

有时可以省略；如果（是否），asif有一个词的意思，但它不作为一个从句中的一个元素。

注意：连接代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑问式。

连接代词与连接副词在从句充当句子成分，连接词whether和if（是否），asif（好像）在从句中不充当句子成分，只起连接作用。

根据句义，如果连接代词与连接副词，whether、if和asif都用不上时，才用that作连接词（that本身无任何含义）。

二、主语从句1.主语从句在复合句作主语。

e、 g.谁去并不重要。

2.用it作形式主语，主语从句放在句末。

3.在指导主题条款时不能忽略这一点。

e.g.thathesuddenlyfellilllastweekmadeussurprised.三、表语从句1.表语从句在复合句中作表语，位于系动词之后。

e、问题是谁能到这里。

2.引导表语从句的连接词that有时可省去。

四、宾语从句1.宾语从句在复合句中作宾语。

引导宾语从句的连词that一般可省略。

e、我希望一切都好。

2.介词之后的宾语从句，不可用which或if连接，要分别用what或whether.e、我不知道你是否完成了工作……i’minterestedinwhatyou‘vesaid.3.是否和如果都可以产生宾语从句，宾语从句通常是可互换的。

但以下情况不能互换。

（1）宾语从句是否定句时，只用if，不用whether.e、 g.Iwonderifit不训练。

（2）用if会引起误解，就要用whether.e、请告诉我你想不想去。

名词性从句讲解练习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】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。

优点英语2022年高考英语必备语法知识释疑与突破(通用版)18名词性从句【重难点释疑】第一部分名词性从句一、主语从句主语从句是在复合句中担任主语的句子。

其特点有：（1）引导词：从属连词that, whether；连接代词who, what, which；whoever, whatever, whichever;连接副词when, where, how和why。

（2）语序：陈述句语序（3）在主语从句中只能用whether，不能用ifThat he will win the match is certain.It is certain that he will win the match.1. 一般来说主语从句都是放在句首，但有时为了使句子保持平衡，避免"头重脚轻"，常用it作形式主语，从而把主语从句放后面。

常以it作形式主语的句型有：①It is＋形容词＋that...It is certain that she will do well in her exam.毫无疑问她考试成绩会很好。

②It is＋名词词组(no wonder，an honour，a good thing，a pity，no surprise，common knowledge，a surprise，a fact，etc. )＋that...It’s a pity that we can’t go.很遗憾我们不能去。

③It is＋过去分词(said，reported，thought，expected，decided，announced，arranged，etc. )＋that...It has been suggested that much should be done to prevent the river from being polluted.有人建议应做更多的工作阻止河流遭受污染。

④It appears/seems that...|It happens that...|It occurred to me that...|It turned out that...优点英语It turned out that nobody remembered the address.结果发现没人记得这地址。

高中英语语法专攻-《名词性从句》【考点1-引导词】【考点2-主语从句】①定义：主语从句是指在复合句中充当主语的句子，它是名词的拓展，属于主语的第三个表达层次。

所以，主语从句和名词一样通常是出现在谓语动词的前面。

②主语从句的引导词：从属连词：that、whether、if（不可位于句首）连接代词：what, whatever/who, whoever/whom, whomever/whose,whosever/which,whichever连接副词：when, whenever/where,wherever/how, however/whythat引导主语从句（that无含义，在句中不作成分，不可省略）That youth is wholly experimental is known to us all。

众所周知，青春就是探索的岁月。

That she finished reading an English novel surprised us all.她读完了一部全英文小说让我们惊讶That you will win the medal seems unlikely.你赢得奖牌似乎是不可能的。

That he is still alive is a wonder.他还活着，真是奇迹。

That we shall be late is certain.我们要晚了，这是确定无疑的。

That she is still alive is a consolation.她还活着是使人感到宽慰的。

Whether引导主语从句（whether有含义“是否”，在句中不作成分，不可省）Whether she will come to the party makes no difference.她来不来参加聚会都没有关系。

It makes no difference whether/if she will come to the party.Whether he is coming or not doesn’t matter too much.他来或不来都不怎么重要It doesn’t matter too much whether he is coming or not.Who,whom, what, which,whose（连接代词）引导主语从句（连接代词有含义，在句中起名词性作用，担当一定成分）Who will be the leader of the team has not been decided yet.谁会成为这个队的领头人还没定下来。

2010---2009年高考英语试题分类汇编——名词性从句（10福建）35. We should respect food and think about the people who don’t have _____ we have here and treat food nicely. A. that B. which C. what D. whether（10湖南）35. Cindy shut the door heavily and burst into tears. No one in the office knew _____ she was so angry.A. whereB. whetherC. thatD. why答案D名词性从句。

该空引导宾语从句，根据句意“办公室中没人知道她为什么如此生气” （10天津）14. As a new graduate, he d oesn’t know _____ takes to start a business here.A. howB. whatC. WhenD. whichB. 作为一名新毕业生，他不知道需要什么才能在这里开始经营。

空格后的从句中takes是动词，其后缺少宾语，所以引导该宾语从句的连接词要用what。

（10北京）33. _____ some people regard as a drawback is seen as a plus by many others.A. WhetherB. WhatC. ThatD. How答案：B主语从句。

一些人眼中的缺点是别人眼中的优点。

从句中缺宾语，只能用B. what 来引导. C.中的That引导主语从句不做成分。

（10浙江）1．—How about camping this weekend, just for a change? —OK, _____ you want.A．whichever B．however C．whateverD．whoever答案：C本题考查引导词。