语法复习三名词性从句
高中英语语法复习--名词性从句
1. The question is whether we can rely on him. 2. That’s because we were in need of money at that time. 3. He looked as if he was going to cry. 4. That’s why I was late.
Many British parents hold the view that teenagers shouldn’t spend too much time online.
4. Chinese students should be given more free time./ ______________________________________________ The suggestion is welcomed by many people, ______________ especially kids in school.
“It is necessary /important /natural /strange… + that从句” 和 “It is suggested /advised /ordered /requested /required /insisted + that从句” It is high time that sb should do sth
This is his job.
His job is important.
{I don’t like what he does every day. {
I don’t know about the man, Mr. White. I don’t know about the fact that he is a teacher.
高三英语语法复习之名词性从句
1.)由连接词that引导的宾语从句
由连接词that引导宾语从句时， that在句中不担任任何成分，在 口语或非正式的文体中常被省 去，但如从句是并列句时,第二 个分句前的that不可省。
He has told me that he will go to Shanghai tomorrow.
注意:在demand, order, suggest, advise, decide, insist, desire, request, command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 know that he studies English every day.
I know that he studied English last term.
I know (that) he will study English next year.
We all know that he has studied English since 1998.
I insist that she (should) do her work alone.
The commander ordered that troops (should) set off at once.
但是, 如果suggest作“表明、暗 示”讲, insist作“坚持说、坚持 认为”讲，则其后的宾语从句中 应该用陈述语气。
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
(完整版)名词性从句知识点总结
(完整版)名词性从句知识点总结名词性从句知识点总结名词性从句是指在复合句中充当名词的从句。
它可以在句子中充当主语、宾语、表语或同位语。
以下是名词性从句的几个重要知识点：主语从句主语从句在句子中充当主语的角色。
它引导的从句通常由关联词that引导，但有时可以省略。
例如：- That he stole the money is a fact.宾语从句宾语从句在句子中充当宾语的角色。
它通常由关联词that引导，但也可以由其他关联词如whether, if, who, whom等引导。
例如：- She asked me if I had finished my homework.if I had finished my homework.- I wonder whether he will pass the exam.whether he will pass the exam.表语从句表语从句在句子中充当表语的角色。
表语从句通常由关联词that引导，但有时也可以由其他关联词如whether, if, what等引导。
例如：- His biggest concern is that he might lose his job.that he might lose his job.- The question is what we should do next.what we should do next.同位语从句同位语从句在句子中充当同位语的角色，用来解释或说明名词的具体内容。
同位语从句通常由关联词that引导，但也可以由其他关联词如whether, if等引导。
例如：- The fact that he lied to us is very disappointing.that he lied to us is very disappointing.- My hope is that we can find a solution to the problem.that we can find a solution to the problem.以上是名词性从句的一些常见知识点总结。
超实用高考英语复习：高考语法填空抢分热点之名词性从句(解析版)
高考语法填空抢分热点之名词性从句一、考点精讲名词性从句的引导词：1.that 无词义，只起引导作用，可以省略，但两个或两个以上that引导的宾语从句并列时，从第二个开始that不能省略。
2.what引导名词性从句，既起引导作用，又在从句中作一个成分，起双重作用，不能省略。
3.连词whether“是否”，可以引导主语从句、表语从句、介词之后的宾语从句以及同位语从句，而if“是否”只能引导动词后面的宾语从句。
4.引导名词性从句的连接副词有when、where、how、why，在判断名词性从句引导词的使用时，如果句子缺成分，缺什么，补什么。
二、高考题经典解读1.______(56) is so breathtaking about the experience is the out-of-this-world scenes.【答案】What【解析】考查主语从句。
句意：这段经历最让人激动的是那些脱离世界的场景。
设空处无提示词，应考虑填冠词、介词、连接词，又因为空格在句首，后面是谓语动词is，这里应该填一个连接词，引导主语从句，从句缺少引导词和主语，且指物，所以连接代词What符合语境，其双重作用。
位于句首，首字母用大写。
故答为What。
2.While they are rare north of 88℃，there is evidence ______ they range all the way across the Arctic，and as far south as James Bay in Canada.【答案】that【解析】考查同位语从句。
句意：虽然它们在88℃以北很少见，但有证据表明，它们一直分布在北极，南至加拿大的詹姆斯湾。
该句是含让步状语从句的复合句，主句部分是there be句型，设空处填that，引导同位语从句，说明evidence的具体内容。
故答案为that。
3.Research suggests an increase in voice is a signal ________ someone is lying.【答案】that【解析】考查同位语从句。
语法复习三--名从
语法复习三：名词性从句在前面我们已经知道了什么是句子.我们可以这样解释什么叫从句:在一个句子的前面加上一个连接词,这个句子就变成了从句.如果这个从句做了主语,它就是主语从句.其它的以此类推.注: 1.特殊疑问句本身可以做从句,它不需要加连接词.2.所有的从句要使用陈述语序. 陈述语序: 句子第一个词永远是主语;第二个词可能是情态动词\助动词等加上动词,或者是动词本身.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，名词性从句分为主语从句、表语从句、宾语从句和同位从句。
名词性从句,顾名思义,它具有名词性.所以可以作主语,宾语等等.回忆一下句子成分那一章（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（二）主语从句1、主语从句在复合句作主语。
Who will go is not important.2、用it作形式主语，主语从句放在句末。
It doesn’t matter so much whether you will come or not.3、that引导主语从句时放在句首时，不能省略。
That he suddenly fell ill last week made us surprised.实用例句:Is it true that he will be punished seriously by the headmaster?Does it make any difference who bought these gifts?How strange it is that these children are so quiet!注意: 表示是否,只能使用whether.（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。
语法复习3： 名词性从句(修订)
高三英语专题复习要点回顾与精练专题04 名词性从句一【语境检测】用适当的连接词、连接代词或链接副词填空使得文章的语意通顺完整。
Light’s Many Colors多彩的光1_______white light is made up of different colors was proved through Newton’s work.The English scientist, Isaac Newton (1643-1727), did a lot of experiments to study light. 2________interested him was the color of light. 3_______light is “white”or “colorful”was still unknown to the people of his time. Few doubted the common knowledge 4_______white light was “pure” light without colors.The question is 5_______he did the experiment. It is quite simple. He allowed a beam of light to pass through a piece of triangular(三角形) glass and then fall on a white wall.6_______he saw on the wall was a band of colors: red, orange, yellow, green, blue, indigo and violet. Were the colors produced by the glass? NO. When Newton passed the light that had come out of the triangular glass through a second triangular glass, all he got was white light.7_______light is colorful was still a question. However, 8_______the colors came from was answered through the experiment. It is certain9_______the colors of light are from the light itself, not form the glass or anything else. The experiment showed 10_______ light had to be looked upon in a new way. Man need to learn more about light.1.That2.what3.Whether4. That5.how6.What7.Why8.where9.that 10.that二【知识导图】三、名词性从句常用关联词的选择三、易混淆的引导词的区别类别说明what与that的区别（见考题1，2）what作复合关系代词并表示“所……的(东西)”之意,相当于“the +名词+ that /which”或“all that”,可指代不确定的事物,在从句中作主语、宾语或表语;而that在名词性从句中只起引导作用,不表达任何意思。
专题3：名词性从句
另外，of 后跟名词或名词短语构成介宾短语。所以，这里是宾语从句；宾语从句中的 charge 后面缺少宾语，
所以用 what 来引导宾语从句，并充当宾语从句的宾语，故选 C。
考点 3 表语从句 常用连接词 that, whether;连接代词 who, whom, whose, which, what, whoever, whomever, whichever, whatever;
②Did you find out where she lost her car?你查出她在哪里丢的车了吗?
4．宾语从句的时态
(1)当主语的谓语动词是一般现在时，其宾语从句的时态是任何适当的时态。如：
①She says(that)she works from Monday to Friday.她说她周一至周五上班。（从句是一般现在时）
特别提示
（1）as/as if/as though 引导的表语从句常跟在特定动词的后面，如：seem, appear, look, taste, sound, feel 等。如：
①It sounds as if someone is knocking at the door.听上去好像有人在敲门。
②At that time, it seemed as though I couldn’t think of the right word.当时我似乎怎么也想不出一个恰当的字眼
第 2 页 共 14 页
④I’ve been thinking about how we can make the newspaper more interesting．我一直在考虑如何使我们的报
纸更有趣。
3．宾语从句的语序在宾语从句中要用陈述句语序。如：
高中英语语法复习之三大从句
三大从句定语从句1.The meeting that you have missed yesterday was very important.2. The girl who is making a speech right now is our monitor.3. The vase that I broke yesterday was very expensive.4. The boy who helped you yesterday is my neighbour.5. That's just the topic that I'm very interested in.6. He is just the boss who gave me that valuable opportunity.7. I like the cake which you bought yesterday.8. He is the teacher who helped me.9. We all like that speaker who is very humorous.10. The old lady whose two daughters are both teachers is our neighbour.11. She is the girl whom I met at the party.12. There are occasions when one must yield.13.Beijing is the place where I was born.14.Is this the reason why he refused our offer?15. His father died the year when he was born.16.He is unlikely to find the place in which he lived forty years ago.17. Do you remember the day on which you joined our club?18.This is the house in which I lived two years ago.19. He has finished the difficult exercise, which is easy for you.20.None of us know the reason for which Tom was absent from the meeting. (why = for which ). 只用that不用which的情况①先行词指物且含有不定代词(all, little, few, much, everything, anything等)Do you have anything that you want to say for yourself?All that Lily told me seems untrue.②先行词被the only, the very, the right, any, every, some, no, just等修饰This is the very bus that I am waiting for.The only thing that we can do is to lend you some money.③先行词含有最高级或含有序数词时，如：This train is the last that will go to Suzhou.This is the first two-story bus that runs in our city.What is the most interesting film that you have ever seen?④先行词既有人又有物Do you know the things and persons that they are talking about?⑤避免重复a. 主句的主语是疑问词who或whichWhich is the bike that you have lost?Who is the boy that won the gold medal?b. 两个定语从句，其中一个用which另一个用thatThey secretly built up a small factory, which produced things that could cause much pollution.c. 先行词在主句中作表语,关系词在从句中也作表语Shanghai is no longer the city that it used to be.⑥ 主句是there be 句型且关系词在从句中作主语There is a seat that is still available.2. 只用which不用that的情况① 非限制性定语从句② 关系代词前有介词（介词锁定）③ 先行词本身是that（避免重复）只用who不用that的情况：① 先行词是指人的不定代词，如：one , ones, anyone, no one, those等Those who have not got your textbooks please raise you hands.② there be结构中先行词指人There is a man who calls himself Mr. S joining our team.③ 分隔式定语从句中I was one of the persons in my office who were invited.四、关系副词when 时间时间状语I will never forget the day when we met there. （可用on which）where 地点地点状语This is the house where I was born. （可用in which）why 原因原因状语I can’t imagine the reason why he turned down my offer. （可用for which）主语从句(subject clause)一．定义:主语从句（subject clause）,顾名思义就是利用一个从句来代替主语。
高考英语复习：第7讲 三大从句掌握好,三步判定“跑不了”
②(2015·广 东 高 考 )When harvest came around, he was already selling herbs, vegetables and cotton in the market ________ people from the towns met regularly.
④(2016·哈 师 大 附 中 模 拟 )There once lived a boy named Woo Sing, ________ father brought home a mirror.
分析：句意：曾经有一个孩子叫 Woo Sing，他的父亲 带回家一面镜子。此处引导词引导定语从句且在从句中作 定语，故用 whose。
2．及物动词或介词之后通常是宾语从句 [ 典 例 ] (2015·全 国 卷 Ⅱ )As natural architects, the Pueblo Indians figured out exactly __50__ thick the adobe walls needed to be to make the cycle work on most days. 分析：空格后面的 thick 是一个形容词，填 how 引导宾 语从句，从句作 figured out 的宾语。
分析：根据句意和句子结构可知此处是一个定语从句， 因为先行词是物，且引导词在定语从句中作主语，所以填 that 或 which。
5．which 在定语从句中常可以替换成 that，但在名词性从句 中不可以替换。
[典例 1] (2014·湖南高考)People should not do things __50__ will disturb their neighbors unnecessarily.
高中语法专项复习 名词性从句
语法专项复习：名词性从句一、名词性从句的类型：1.主语从句(Subject Clause)：充当句子的主语；置于句首或句末(常用“it”作形式主语)例句：Whether Native Americans arrived in California 15,000 years ago or 14,000 years ago is not important.*从句作主语时，谓语动词一般用单数。
但是what和who引导主语从句时，有时主句的谓语动词的数应与主句中表语的名词保持一致。
例句：1. What they bought was water.2. What they bought were books.“It”作形式主语的句型：1) It is/was +名词( no wonder, an honor, a good thing, a pity, no surprise…)＋主从例句：It is a pity that we can’t go.2) It is/was ＋形容词(obvious, natural, surprising, wonderful, possible, likely,certain…)＋主语从句例句：It is clear that Tom has returned.3) It is/was＋过去分词(said / reported / believed / known / thought / expected /decided / announced / arranged…)＋主语从句例句：It is said that President Jiang will visit our school next week.4) It＋动词(happens /occurs / seems…) ＋主语从句例句：It occurred to him that he failed in the examination.5) It doesn’t matter how/whether…例句：It doesn’t matter whether he is wrong or not.2.宾语从句(Object Clause)：作句子的宾语；位于动词或介词之后。
语法复习三：名词性从句
语法复习五：名词性从句Tell the type of each Noun Clouse: SC（主语从句）、OC（宾语从句）、PC（表语从句）、AC（同位语从句）1. What life will be like in the future is difficult to predict.2. It is certain that things will change.3. They are careful about what they eat and exercise regularly.4.The school of the future will probably be quite different from what they are today.5. We cannot be sure whether our dreams will come true, but we can at least be hopeful that our efforts to improve the worldwill be successful.6.The discussion topic for today is what schools will be like in the future.7. It looks as if they are very excited at the news.8. The act that Great Britain is made up of three countries is still unknown to many.9. The suggestion that students should learn something practical is worth considering.1、语序(order of speech)找出下列句子中的错误，并总结出规律：1. Can you tell me how many students are there in your class?2. I don't know where has he gone.3. The owner of the shop came to see what was the matter.Key:Can you tell me how many students there are in your class?/I don't know where he has gone./The owner of the shop came to see what the matter was.规律一：名词性从句中须使用陈述语序！Practice1.(04’广东) I have always been honest and straightforward, and it doesn’t matter ____ I’m talking to.A. who is itB. who it isC. it is whoD. it is whom2. (06’上海春) These shoes look very good. I wonder ____.A. how much cost they areB. how much do they costC. how much they costD. how much are they cost3. (00’上海) Someone is ringing the doorbell. Go and see____.A. who is heB. who he isC. who is itD. who it is2、易混连词用法比较⑴whether与if找出下列句子中的错误，并总结出规律：1. If we will have a meeting hasn't been decided yet.2. It depends on if the weather is suitable for us to do it.3. The question is if he himself will be present at the meeting.4. He asked me if I could go with him or notKey:1.Whether we will have a meeting hasn’t been decided yet.2.It depends on whether the weather is3.The question is whether he himself will be present 4.He asked me whether I could go with him ornot.规律二：5种情况只能用whether ：（1）位于句子开头；（2）前面有介词；（3）引导表语从句；（4）与or not连用(书)；（5）引导同位语从句Practice1.(06’江苏)We haven’t settled the question of ___ it is necessary for him to study abroad.A. ifB. whereC. whetherD. that2.(07’湖北) ______ (他是否出过国) doesn’t make much difference. (he, abroad)3.(NMET1996) ____ we’ll go camping tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where(2) what与that找出下列句子中的错误，并总结出规律：1. I had no idea what he had changed his mind.2. That we can’t get seems better than that we have.3. The police were called in to find out that caused the big fire.4. That you have done might do harm to other people.Key:1.that 2. what,what 3.what 4.what规律三：（1）that : 无意义，不充当成分，and/ or/ but/ … 并列连词引导的多个宾语从句中的that, 第一个可省略，第二个及以后的均不可省略。
外研版高考英语一轮总复习 语法专题 专题三 第4讲 名词性从句
专题三
英语
内容索引
情境导入 考点解读 技法图解
情境导入
What①worries my classmate,Mary,a lot these days is that②she puts on too much weight and is frequently ill.She has some doubts whether③she eats too
小题快练 单句语法填空 1.The development is a message for the international community __t_h_a_t___ China is marching ahead of time and the expectations of Chinese partner countries are on the rise. 解析 考查同位语从句。分析可知,空处引导同位语从句,从句“China is marching ahead of time and the expectations of Chinese partner countries are on the rise”句意完整,成分齐全,故用 that引导同位语从句。 2.But they have poor memory and often forget where they have put these nuts. 解析 考查宾语从句。空处引导一个宾语从句,作动词forget的宾语,从句结 构完整,结合句意可知,此处表示“哪里”,应用连接副词where引导。故填 where。
技法图解
【例1】 My work has involved helping communities establish freshwater protected areas in Southeast Asia,and also developing methods to test
语法专项复习：名词性从句
专题三名词性从句名词性从句可分为主语从句、表语从句、宾语从句和同位语从句。
一、引导名词性从句的连接词1．连接代词：who, whose, whom, what, which, whoever, whomever, whatever, whichever。
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, because, wherever, whenever。
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) （是否）, as if（好象）虽有词义，但在从句中不担任成分。
二、名词性从句的种类（一）主语从句1．主语从句在复合句中作主语。
Who will go is not important.2．用it作形式主语，主语从句放在句末。
It doesn’t matter so much whether you will come or not.3．用it 作形式主语的常用结构1) It is ＋名词＋从句It is a fact that … 事实是…It is an honor that … 非常荣幸It is common knowledge that… …是常识2) It is ＋形容词＋从句It is natural that… 很自然…It is strange that… 奇怪的是…3) It ＋不及物动词＋从句It seems / appears that… 似乎…It happened that… 碰巧…4) It is ＋过去分词＋从句It is reported that… 据报道…It has been proved that… 已证实…It is s aid that… 据说…4．that引导主语从句时，不能省略。
高中英语2025届高考语法复习名词性从句知识讲解
高考英语语法复习名词性从句知识讲解一、什么是名词性从句？名词性从句是指起名词作用的从句。
例如：·I like what I see.(和所有分句一样，名词性分句有一个主语 subject和一个动词verb。
在本例中，该分句的主语是 "I" 动词是"see."）·I know that patience has its limits.(在这个例子中，分句的主语是 "patience"，动词是 "has."）。
将上面的两个例子与下面的例子进行比较：·I like innovation.·I know people.粗体字都是名词nouns。
这证明前两个例子中阴影部分的分句从语法功能上来看就是名词。
很多名词性从句都以 "that"、"how "或 "wh"开头（即 "what"、"who"、"which"、"when"、"where "或 "why"）。
例如：·I know that it happened.·I know how it happened.·I know why it happened.二、如何检查从句是否用作名词检查短语或分句是否用作名词的一个好方法是尝试将其替换为代词（replacing it with a pronoun）。
如果你能做到，那么你的短语或分句就具有名词的功能。
·What I say is true.(代词测试Pronoun test："It is true." 这证明"What I say" 从语法功能上来看是名词。
高三语法复习 名词性从句
what (什么) / which ( 表选择, 哪一 个、哪一些)
1. ---Do you know ________ what Mr Black’s address is ?
---He may live at No. 18 or No. 19 of Bridge which Street. I’m not sure of _________. 2. I read about it in some book or other. Does it matter _______ which it was?
小结:it 作 形式主语的四个主要句型
1.it +be+形(possible/certain/surprising_) +that从句 2.it+be+名(no surprise/no wonder/a pity_) +that 从句 3.it+be+过去分词(said/reported/thought/ believed/decided_)+ that从句 4.it+不及物动词（happen_）+that 从句
1： That What
二、宾语从句典型错误
1.Idon’t believe that the teacher will not believe not consider our suggestions. 2. She was praised for what she had had she done. if / whether 3. He wants to know I still study English. 4. I am interested in if he can do whether it in such a short time. 5.It is generally considered unwise to give a child nowhatever matter what he or she wants.
高考英语 语法复习巧突破 第一部分 专项专讲 三大从句(含试题)
板块三 句法集释三大从句从句可分为定语从句、状语从句和名词性从句，它们是中学阶段的重要语法项目，其引导词的选择既是高考必考点，又是同学们学习与复习的一大难点。
定语从句是形容词性从句，相当于形容词的用法，其功能是修饰先行词，对其性质、特征进行描述，先行词在定语从句中一般充当主语、宾语、表语、定语或状语等。
状语从句是副词性从句，相当于副词的用法，其功能是在复合句中作状语。
根据状语从句的含义，状语从句一般可以充当时间、地点、原因、条件、目的、结果、让步、方式和比较等从句。
名词性从句的功能相当于名词词组，一般在句子中充当主语、表语、宾语或同位语。
1．(2013·江苏高考)The president of the World Bank says he has a passion for China, ________ he remembers starting as early as his childhood.A ．whereB ．whichC ．whatD ．when解析：选B 考查定语从句。
分析句子结构可知，“________ he remembers starting as early as his childhood”为定语从句，先行词是passion ，且空处在从句中作宾语，因此选which 。
2．(2013·安徽高考)Mo Yan was awarded the Nobel Prize for Literature in 2012,________ made one of the Chinese people's longheld dreams come true.A．it B．thatC．what D．which解析：选D 考查定语从句。
句意：莫言获得了2012年诺贝尔文学奖，这使得中国人民很久以来的一个梦想得以实现。
此处为非限制性定语从句，修饰整个主句。
2025届高考英语语法复习名词性从句知识讲解练习讲义
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。
初中英语语法复习讲义之名词性从句
初中英语语法复习讲义之名词性从句一、概说名词性从句，即指具有名词性质的从句，它包括主语从句、宾语从句、表语从句和同位语从句。
名词性从句是高中英语学习中的一个语法重点，也是历年高考重点考查的内容之一。
学习名词性从句主要应注意其引导词的用法与区别，从句的词序以及名词性从句与其他从句的区别。
二、主语从句1.主语从的引导词主语从句通常由连词that和whether、连接代词或连接副词以及关系代词型what引导What we need is money.我们需要的是钱。
What I want to know is this.我想知道的就是这一点。
Whether they would support us was a problem.他们是否会支持我们还是一个问题2.主语从向与形式主语it有时为了考虑句子平衡，通常在主语从句处使用形式主语i，而将真正的主语从句移至句末。
这分三种情况:(1)对于以连词thatgl导的主语从句，通常用形式主语代主语从句:It’s a pity that he didnt come.很遗憾他没来。
(2)对于以连接代词(副词)引导的主语从句，可以使用形式主语代主语从句，也可直接在句首使用主语从句:Whether they wouldsupport us was a problem.他们是否会支持我们还是一个问题。
It was a problem whether they would support us.他们是否会支持我们还是一个问题。
(3)对关系代词型what引导的主语从，通常不用形式主语，总是主语从句放在句首:What we need is money.我们需要的是钱。
What I want to know is this.我想知道的就是这一点。
(4)如果句子是疑问句，则必须用带形式主语it的结构:Is it true that he is the girl's father? 他是那女孩的父亲，是真的吗?How is it that you are late again? 你怎么又迟到了?3.连词that的省略问题引导主语从句的连词that有时可省，有时不能省，其原则是:若ha导的主语从句直接位于句首，则ha不能省略;若hat引导的主语从句位于句末，而在句首使用了形式主语it，则that则可以省略: That you didn’t go to the talk was a pity. 很遗憾你没去听报告。
高考英语语法复习：名词性从句
高考英语语法复习：名词性从句高考英语语法复习：名词性从句一、名词性从句名词性从句相当于名词，可分别在句中作主语、表语、宾语和同位语。
因此，名词性从句可分为主语从句、表语从句、宾语从句和同位语从句。
从属连词that：在从句中不充当任何成分，也没有任何意思，只起连接作用，因此往往可以省略从属连词if, whether：在从句中不充当任何成分，有意义，不可以省略连接代词who, whoever, whom, whomever, which, whichever, what, whatever, whose：在从句中充当成分，有意义，不可以省略连接副词where, when, why, how：在从句中充当成分，有意义，不可以省略一、主语从句１.由从属连词引导的主语从句：①Whether the country should build a nuclear power station is something we must discuss.那个国家是否应该建立核电站……②That light travels in straight line is known to all .光以直线传播２.由连接代词引导的主语从句：①What we need is more time. 我们所需要的是……②Whichever book you choose doesn’t matter to me.无论你选哪本书……③Whoever comes will be welcome.无论谁来……３.由连接副词引导的主语从句：①When the plane is to take off hasn’t been announced.飞机什么时候起飞……②Where he has been is stil l a puzzle.他到过哪儿……③How much water is flowing can be measured easily.水的流量是多少……4.关于形式主语it①It + be +形容词+ that-从句It is necessary that…有必要…… It is important that…重要的是……It is obvious that…很明显…… It is likely that….很可能②It + be + -ed 分词+ that-从句It is believed that…人们相信…… It is known to all that…众所周知……It has been decided that…已决定……③It + be +名词+ that-从句It is common knowledge th at………是常识It is a surprise that…令人惊奇的是……It is a fact that…事实是……可应用于此句型的名词还有fact / shame / honor / question/pity等。
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语法复习三：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，名词性从句可分为主语从句、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。
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），as if（好象）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as if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. Who will go is not important.2、用it作形式主语，主语从句放在句末。
e.g. It doesn’t matter so much whether you will come or not.3、that引导主语从句时，不能省略。
e.g. That he suddenly fell ill last week made us surprised.（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.g. The question was who could go there.2、引导表语从句的连接词that有时可省去。
e.g. My idea is (that) we can get more comrades to help in the work.（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.g. I hope (that) everything is all right.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.g. I’m interested in whether you’ve finished the work..I’m interested in what you’ve said.3、whether与if都可以引导宾语从句，常可互换。
但下面情况不能互换。
①宾语从句是否定句时，只用if，不用whether。
e.g. I wonder if it doesn’t rain.②用if 会引起误解，就要用whether。
e.g. Please let me know whether you want to go.（此句如果把whether改成if，容易当成条件句理解）③宾语从句中的whether 与or not直接连用，就不能换成if；不直接连用，可换。
e.g. I don’t know whether or not the report is true.I don’t know whether/ if the report is true or not.④介词后的宾语从句要用whether引导。
whether 可与不定式连用。
whether也可引导主语从句、表语从句、同位语从句，还可引导让步状语从句，以上均不能换成if。
但引导条件从句时，只能用if，而不能用whether。
e.g. It depends on whether we have enough time.They don’t know whether to go there.Please come to see me if you have time.（五）同位语从句同位语从句在句中作某一名词的同位语，一般位于该名词（如：news, fact, idea, suggestion, promise等）之后，说明该名词的具体内容。
e.g. I have no idea when he will be back.The fact that he had not said anything surprised everybody.练习：名词性从句一、判断下列各句哪句含有名词性从句，并指出是什么从句：1. China is no longer what it used to be.2. The truth that the earth turn around the sun is known to all.3. It was snowing when he arrived at the station.4. How he persuaded the manager to change the plan is interesting to us all.5. The news that they had won the game soon spread over the whole school.6. The news that you told me yesterday was really disappointing.7. That is where Lu Xun used to live.8. He spoke as if he understood what he was talking about.9. Do you remember the teacher who taught us English at middle school?10. I wonder why she refused my invitation.二、用适当的连词填空：1. I can’t decide ____________ dictiona ry I should buy.2. That’s ____________ he refused my invitation.3. I am very interested in ____________ he has improved his pronunciation in such a short time.4. ____________ we need is more time.5. The fact ____________ she had not said anything at the meeting surprised everybody.6. ____________ and ____________ they will meet has not been decided yet.7. Please tell me ____________ you are waiting for.8. Is that ____________ you are looking for?9. Would you please tell me ____________ the nearest post office is?10. I don’t know ____________ he will agree to the plan or not.三、选择填空：1. Do you see _____ I mean?A. thatB./C. howD. what2. Tell me_____ is on your mind.A. thatB. whatC. whichD. why3. We must stick to _____ we have agreed on.A. whatB. thatC. /D. how4. Let me see _____.A. that can I repair the radioB. whether -I can repair the radioC. I can repair the radioD. whether can I repair the radio5. Keep in mind _____.A. that the teacher saidB. what did the teacher sayC. that did the teacher sayD. what the teacher said6. Could you advise me _____?A. which book should I read firstB. what book should I read firstC. that book 1 should read firstD. which book I should read first7. He was criticized for _____.A. he had done itB. what he had doneC. what had he doneD. that he had done it8. Would you kindly tell me _____?A. how can I get to the Beijing Railway StationB. how I can get to the Beijing Railway StationC. where can I get to the Beijing Railway StationD. whether can I get to the Beijing Railway Station9. Mrs. Smith was very much impressed by _____.A. what had she seen in ChinaB. that she had seen in ChinaC. what she had seen in ChinaD. which had she seen in China10. We took it for granted ___A. that they were not comingB. that were they not comingC. they were coming notD. were they not coining11. I really don't know _____A. I should do nextB. what should I do nextC. what I should do nextD. how I should do next12. I'm afraid _____.A. the little girl will have to be operated onB. that will the little girl have to operate onC. the little girl will have to operate onD. that will the little girl have to be operated on13. She walked up to _____ .A. where did I standB. where I stoodC. I stood thereD. where I stood there14. Can you tell me _____?A. who is that gentlemanB. that gentleman is whoC. who that gentleman isD. whom .is that gentleman15. We'll give you _____.A. that do you needB. what do you needC. whatever you needD. whether do you need16. They want us to know _____ to help us.A. what can theyB. what they canC. how they canD. how can they17. We must put _____ into practice.A. what we have learnedB. that we have learnedC. that have we learnedD. what have we learned18. Did she say anything about _____?A. that the work was to be doneB. how was the work to be doneC. that was the work to be doneD. how the work was to be done19. He was never satisfied with _____.A. what she had achievedB. had what she achievedC. she had achievedD. that she achieved20. These photographs will show you _____.A. what does our village look likeB. what our village looks likeC. how does our village look likeD. how our village looks like21. Peter insisted _____ he pay the bill.A. on thatB. whatC. thatD. on which22. They urged _____ the library open during the vacation.A. whenB. whereC. whyD. that23. We wish we could have learned _____ when we were at high school.A. what you didB. that you had doneC. that what you didD. what did you do24.1 will describe to you _____ I saw when there.A. whatB. thatC. whichD./25. From _____ I should say he is a good worker.A. what 1 know of himB. that I do know of himC. what do I know of himD. that do I know of him26. I will give this dictionary to __ wants to have it.A. whomeverB. anyoneC. whoeverD. someone27._____ they will come here hasn' t been decided yet.A. WhatB. ThatC. WhenD. Where28. _____ was said here must be kept secret.A. WhoB. The thingC. WhateverD. Where29. It is still a question _____ we shall have our sports meet.A. ifB. thatC. whatD. when30. I'm going anyway. _____ she will go is up to her to decide.A. If or notB. Whether or notC. IfD. That31. It is strange _____ she have left without saying a word.A. thatB. whatC. whyD. how32. It is very clear _____ our policy is a correct one.A. whatB. thatC. whyD. where33. _____ Mr Zhang said is quite right.A. ThatB. WhenC. WhatD. Whether34. It has been decided _____ he will be sent there.A. ifB. whetherC. whyD. that35. It doesn' t matter _____he' s come back or not.A. ifB. whetherC. thatD. when36. It's a great pity _____ we won’t be able to finish the task on time.A. whenB. thatC. whyD. where37. It happened _____ I wasn't there that day.A. whenB. whyC. whereD. that38._____ you have done might do harm to other people.A. WhatB. ThatC. WhichD. The things39. _____ leaves the room last ought to turn oft the lights.A. AnyoneB. The personC. WhoeverD.Who40._____ the 2000 Olympic Games won't be held in Beijing is known to all.A. WhetherB. IfC. WheneverD. That41. _____ fails to see this will make a big mistake.A. ThatB. WhoeverC. WhetherD. Whether or not42. __ we need more equipment is quite obvious.A. WhatB. WhetherC. ThatD. Whatever43. Has it been announced _____?A. when are the planes to take offB. that are the planes to take offC. where are the planes to take offD. when the planes are to take off44. That is _____ we all support his idea.A. whatB. whyC. whereD. when45. That’s _____ we should do.A. thatB. whatC. howD. why46. _____ is troubling me is _____ I don’t understand _____ he saidA. What; that; whatB. What; what; whatC. That; that; whatD. Why; that; which47. Things were not _____ they seemed to be.A. whenB. whyC. thatD. what48. That’s _____ I want to say.A. all whatB. whatC. all whichD. what that49. That’s _____ .A. where our differences lieB. our differences lie thereC. where do our differences lieD. that where our differences lie50. That is _____ .A. where lived he thereB. where did he liveC. where he livedD. that where he lived51. The questions is _____.A. whether is it worth doingB. that if it is worth doingC. whether it is worth doingD. if it is worth doing52. Water will continue to be _____ it is today next in importance to oxygen.A. howB. whichC. whatD. as53. That's_____.A. how did I become a teacherB. how I became a teacherC. how a teacher I becameD. that I became a teacher54. They are just _____.A. that what shall I haveB. what shall I haveC. that I shall have whatD. what I shall have55. It looked ____.A. as if it was going to rainB. that as if it was going to rainC. as if was it going to rainD. as if that it was going to rain56. That's_____.A. how she did itB. that how did she do it.C. how did she do itD. what she did it57. That is _____ we decided to put the discussion off.A. whereB. whichC. thatD. why58. That’s _____ I lived when I was ten years old.A. whereB. at whichC. there whereD. when59. My suggestion is _____ we should send a few comrades to help them.A. ifB. thatC. when thatD. that where60. The idea _____ all people are selfish is wrong.A. whatB. thatC. whyD. if61. We heard the news _____ our team had won.A. thatB. whatC. whetherD. why62. The fact _____ he hadn’t said anyt hing surprised us all.A. whyB. ifC. thatD. whether63.I have no idea _____ she will be back.A. thatB. whereC. that whenD. when64. We must keep in mind the fact _____ China is still a developing country.A. whetherB. thatC. whyD. when65. They have no idea at all _____.A. where he has goneB. where did he goC. where has he goneD. which place he has gone04——09湖南高考真题：名词性从句11. I think Father would like to know ____ I've been up to so far, so I decide to send him aquick note. (24/04)A. whichB. whyC. whatD. how12. I was surprised by her words, which made me recognize ____ silly mistakes I had made. (35/05)A. whatB. thatC. howD. which13. With his work completed, the businessman stepped back to his seat, feeling pleased ____ he wasa man of action. (34/06)A. whichB. thatC. whatD. whether14. Having checked the doors were closed, and ____ all the lights were off, the boy opened the door to his bedroom. (28/07)A. whyB. thatC. whenD. where15. When asked ____ they needed most, the kids said they wanted to feel important and loved.(29/08)A. whatB. whyC. whomD. Which09年全国各地高考真题：2009年高考英语试题分类汇编（五）——名词性从句（09安徽）1. a certain doubt among the people as to the practical value of theproject.A. It hasB. They haveC. It remainsD. There remains（09湖南）2．She is very dear to us. We have been prepared to do it takes to save herlife.A. whicheverB. howeverC. whateverD. whoever（09江西）3. The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.A. whatB. whichC. thatD. though（09海南）4. Could I speak to is in charge of International Sales please?A. whoB. whatC. whoeverD. whatever（09陕西）5. The how to book can be of help to wants to do the job.A. whoB. whomeverC. no matter whoD. Whoever（09海南）6. One of the most important questions they had to consider was of publichealthA. whatB. thisC. thatD. which（09上海）7. As a new diplomat, he often thinks of he can react more appropriately on such occasions.A. whatB. whichC. thatD. how（09四川）8. News came from the school office ________Wang Lin had been admitted to Beijing University.A. whichB. whatC. thatD. where（09天津）9. It is obvious to the students ______ they should get well prepared for their future.A. asB. whichC. whetherD. that（09浙江）10．－Is there any possibility ______ you could pick me up at the airport?－No problem.A.WhenB. thatC. whetherD. what（09重庆）11 We should consider the students’ request ___ the school library provide more books on popular science.A. thatB. whenC. whichD. where（09江苏）12.Many young people in the West are expected to leave __ could be life’s most important decision—marriage—almost entirely up to luck.A. asB. thatC. whichD. what（09山东）13. The little girl who got lost decided to remain _________she was and wait tor her mother.A. whereB. whatC. howD. who。