名词性从句--主语从句
名词性从句—— 主语从句、宾语从句、表语从句、同位语从句档
主语从句
一、 that从句做主语
1、that不能省略，常用it做形式主语
That the thief has entered his room is obvious.
=It is obvious that the thief has entered the room.
2、宾语从句中，当主句谓语动词是一般过去时，从句谓语动词要用与过去相关的时态
She asked me where I was going.
I wondered how he could make such rapid progress in French.
注意：若从句表达的是客观真理，仍用一般现在时
It is said that they have won the game.
常用过去分词：said, believed, reported, hoped, claimed, known, announced, suggested
此句型可转换成另一结构：
主语 + be + 过去分词 + to do / to have done
= He is said to go to America.
4) It + vi. +that从句
It seems that something is wrong with the machine.
常用vi：happen, appear, seem, turn out
二、 wh-从句做主语
I would have drowned，but that you had saved me in the water.
名词性从句与主语从句
名词性从句与主语从句在英语语法中，名词性从句和主语从句是重要的从句类型。
它们都属于从属从句，扮演着整个句子的一个成分。
本文将详细介绍名词性从句和主语从句的定义、特点和用法，并举例说明其在实际应用中的运用。
一、名词性从句的定义和特点1. 定义：名词性从句是指在复合句中充当名词成分的从句。
它可以充当主语、宾语、表语和同位语等。
2. 特点：a. 通常由连词that, whether/if, who, whom, which, what, when, where, why, how等引导；b. 在从句中担任名词的职能，整个从句作为整体在句中起到名词的作用；c. 可以替换为一个单词或短语，使句子更加简洁明了；d. 名词性从句的引导词根据从句所充当的成分来选择。
二、名词性从句的用法名词性从句的常见用法包括主语从句、宾语从句、表语从句和同位语从句。
下面将分别进行讲解。
1. 主语从句主语从句在句子中充当主语的角色，常以that, whether/if, who, whom, which, what, when, where, why, how等引导。
例如： - Whether we can finish the project on time is still uncertain.- That he stole the money is beyond doubt.- How to solve this problem remains a challenge.2. 宾语从句宾语从句在句子中充当宾语的角色，常以that, whether/if, who, whom, which, what, when, where, why, how等引导。
例如： - She asked me where I had been all day.- I don't know if he will come to the party.- We should consider whether this plan is feasible.3. 表语从句表语从句在句子中充当表语的角色，常以that, whether/if, who, whom, which, what, when, where, why, how等引导。
主语从句
简单辨认it作形式主语与强调句型的 方法
• 去掉it be that 还能成为一个完整的句子就是 强调句型 • eg:it was mary who set the record.是玛丽创 造了奇迹。 • Mary set the record.
三、用it作形式主语的主语从句结构
• 1)It is + adj. / n. +从句
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• 2、It is said/reported结构中主语不可提前 • eg:据说这条公路明年通车。 • It is said that the expressway will be open to traffic next year.(T) • That the expressway will be open to traffic next year is said.(F)
二、it作形式主语与it引导强调句的 比较
• it作形式主语主要是为了平衡句子结构;it引 导强调句是为了对某一部分进行强调，固 定结构it+be+that(who/whom/whose/where) • eg：It was ordered that the goods be sent there by plane.根据命令，那些货物必须空 运到那里。（it作形式主语） • It was last summer that he graduated from the university.他是去年夏天从那所大学毕业 的（强调句型，强调“去年”）
当what引导的主语从句表示“· · · 的东 西”时，一般不用it作形式主语
• 当what引导的主语从句表示“· · · 的东西”时， 一般不用it作形式主语 • Eg :What angered me most was he total lack of remorse.(正确) • It angered me most was he total lack of remorse.(错误) • It was his total lack of remorse that angred me most.(正确、强调句型！) • Whatever/whoever/whichever引导的句子一 般也不用it作形式主语
名词性从句-主语从句
主语从句的构成
主语从句的构成包括引导词和陈述句两部分。引导词是主语从句的开头，陈述句则是主语从句的具体 内容。
例如：“That he will come is certain.”这个句子中，“that”是引导词，“he will come”是陈述 句，合起来构成了主语从句“that he will come”。
特殊情况下的语序变化
在某些特殊情况下，如强调或倒装句中，主语从句的语 序可能会发生变化。例如，“It is he who is responsible for the accident.”（是他负责这起事故。）
主语从句的省略
省略条件
主语从句在某些情况下可以省略，通常是在从句内容与主句内容重复或从句内容不重要的情况下。
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名词性从句-主语从 句
目录
• 主语从句的定义 • 主语从句的引导词 • 主语从句的句型结构 • 主语从句的用法 • 主语从句的注意事项
01
主语从句的定义
什么是主语从句
主语从句是名词性从句的一种，在句子中充当主语成分，表示句子中的主要内容。 主语从句通常由一个连词引导，如that、whether等，后面跟随一个完整的句子。
引导词who
总结词
表示人或身份
详细描述
who作为主语从句的引导词，通常表示人或身份，在句子中起到连接主语和谓语的作用。例如，“Who will win the game is still unknown.”（谁将赢得比赛仍然未知。）
引导词which
总结词
表示选择或范围
详细描述
which作为主语从句的引导词，通常表示选择或范围，在句子中起到连接主语和 谓语的作用。例如，“Which team will win the game is still unknown.” （哪个队将赢得比赛仍然未知。）
名词性从句和主语从句的区别
名词性从句和主语从句的区别名词性从句和主语从句是英语语法中两个重要的从句类型，它们在使用和功能上有着一些区别。
本文将对名词性从句和主语从句的区别进行详细介绍。
一、名词性从句的定义和功能名词性从句是在句子中充当名词的作用，可以作为主语、宾语、表语或同位语。
名词性从句通常由连接代词（如what, who, whom, which, whoever, whatever）或连接副词（如when, where, why, how）引导。
名词性从句在句子中的功能类似于名词，用于表达陈述、提问、建议、愿望、要求、目的、理由等。
二、主语从句的定义和功能主语从句作为句子的主语，从句中的谓语动词所表示的是主句中的主谓关系。
主语从句通常由连接代词（如what, who, whom, which, whoever, whatever）或连接副词（如when, where, why, how）引导。
主语从句在句子中的功能是充当整个句子的主语，用于表达主谓关系，而且不能省略。
三、名词性从句和主语从句的区别1.位置不同：- 名词性从句可以出现在句子的主语、宾语、表语和同位语等位置，位置较为灵活。
- 主语从句只能作为句子的主语出现，位置不可变。
2.引导词不同：- 名词性从句常由连接代词或连接副词引导。
- 主语从句也常由连接代词或连接副词引导，但通常只由连接代词引导。
3.结构不同：- 名词性从句在结构上是完整的句子，包含主语、谓语和其他成分。
- 主语从句在结构上只包含主语部分，谓语动词在主句中。
4.可替换性不同：- 名词性从句可以被代替为一个单词或一个词组。
- 主语从句在句子中起到主语的作用，不能被代替。
四、名词性从句和主语从句的例句说明1. 名词性从句的例句：- I don't know what he said.（主语从句作宾语）- Tell me where she lives.（主语从句作宾语）2. 主语从句的例句：- What he said is interesting.（名词性从句作主语）- Where she lives is a mystery.（名词性从句作主语）综上所述，名词性从句和主语从句在使用和功能上存在区别。
名词性从句和主语从句的差异
名词性从句和主语从句的差异名词性从句和主语从句是英语语法中常见的两种从句结构。
尽管它们在句法结构上有一些相似之处，但它们在语法功能和用法上存在显著差异。
本文将详细介绍名词性从句和主语从句的差异，以及它们在句子中的应用。
1. 名词性从句名词性从句是一个完整的句子，其在句子中担任名词的功能。
名词性从句可以充当主语、宾语、表语或同位语。
它通常由连接词引导，如what、where、when、who、which、whether等。
名词性从句通常以陈述句的形式出现，例如：- What she said is true.（她所说的是真的。
）（名词性从句作为主语）- I don't know where he went.（我不知道他去了哪里。
）（名词性从句作为宾语）- His question is whether she will come or not.（他的问题是她是否会来。
）（名词性从句作为表语）- The fact that he passed the exam surprised us.（他通过考试的事实使我们很吃惊。
）（名词性从句作为同位语）名词性从句可以在句子中起到名词的作用，承担特定的语法角色，并且可以被代词所替代。
2. 主语从句主语从句是一个完整的句子，用作主句中的主语。
它通常由连接词引导，如that、whether、who、which等。
主语从句通常以陈述句的形式出现，例如：- That he doesn't like tomatoes surprises me.（他不喜欢西红柿让我很惊讶。
）- Whether we should go camping is still undecided.（我们是否应该去露营还没有决定。
）主语从句在句子中起到名词的作用，承担主语的语法角色。
它和名词性从句一样，在结构和功能上都类似，但主语从句只能用于句子的主语部分。
3. 尽管名词性从句和主语从句之间存在一些相似之处，但它们在语法功能和用法上有一些显著差异。
名词性从句总结
名词性从句总结名词性从句是一个句子，在句子中充当其他句子成分的词组。
它作为名词的补充，可以充当主语、宾语、表语、同位语或介词宾语。
名词性从句在句子中起着重要的作用，可以使句子结构更加复杂丰富。
下面将对名词性从句的种类、结构和用法进行总结。
一、名词性从句的种类名词性从句包括主语从句、宾语从句、表语从句和同位语从句。
它们在句子中的作用不同，下面将对它们进行详细的介绍。
1. 主语从句主语从句作为句子的主语，通常以“that”引导，也可以用“whether/if”引导。
例如：- That he is late is very frustrating. (他迟到了很令人沮丧。
)- Whether she can come or not is still uncertain. (她是否能来还不确定。
)2. 宾语从句宾语从句作为句子的宾语，通常以“that”引导，也可以用“whether/if”引导。
例如：- I hope that you can join us for the party. (我希望你能参加我们的派对。
)- He doesn't know whether he should go or not. (他不知道他是否应该去。
)3. 表语从句表语从句作为句子的表语，通常以“that”引导，也可以用“whether/if”引导。
例如：- His main concern is that he won't pass the exam. (他最担心的是他不会通过考试。
)- The question is whether we should continue or stop. (问题是我们是继续还是停下来。
)4. 同位语从句同位语从句修饰前面的名词，通常以“that”引导，也可以用“whether/if”引导。
例如：- The news that he won the competition is exciting. (他赢得比赛的消息令人兴奋。
名词性从句有哪些
名词性从句有哪些名词性从句共有四种，分别是主语从句（整个从句在主句中做主语），表语从句（整个从句在主句中做表语），同位语从句（整个从句在主句中做同位语），宾语从句四类（整个从句在主句中做宾语）。
名词性从句有哪些1、主语从句例如：It + be + 形容词/名词/动词过去分词 + that 从句It is strangethat he knows nothing about it.从句：He knows nothing about it.主句：It is strange something (= He knows nothing about it).连接词在从句中是否充当成分：否连接词是否可省：否2、宾语从句例如：that 引导的宾语从句I think that English is important.从句：English is important.主句：I think something (= English is important).连接词在从句中是否充当成分：否连接词是否可省：是3、表语从句用法和结构同宾语从句，区别在于：系动词后面所接的从句为表语从句，而及物动词后面所接的从句为宾语从句。
例如：- that 引导的表语从句The truth is that English is important.从句：English is important.主句：The truth is something (= that English is important).4、同位语从句同位语从句就是在复合句中作名词的同位语的名词性从句。
同位语从句对于名词进一步解释，说明名词的具体内容，一般由that引导，同位语从句有时可以不紧跟在它所说明的名词后面，而是被别的词隔开。
高三名词性从句---主语从句,表语从句,宾语从句,同位语从句
精锐教育学科教师辅导讲义学员编号：年级：高三课时数：3学员姓名：辅导科目：英语学科教师：授课类型C(名词性从句简述) C (主语从句，表语从句) C (宾语从句，同位语从句) 授课日期及时段教学内容一、专题知识梳理一、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）。
1）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。
2）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。
主语从句What he wants to tell us is not clear.宾语从句He has told me that he will go to Shanghai tomorrow.名词性从句表语从句The fact is that we have lost the game.同位语从句I have no idea when he will come back home.1. 这里重点强调一下同位语从句，顾名思义，所谓同位语从句就是一个句子与主句中某一个名词互为同位语！那么什么是同位语呢，很简单就是相同地位，相同成分，平起平坐，A(名词)=B（从句）, B（从句）=A（名词）, 去掉任何一部分（A/B）对整个句子都不影响。
2. 而且与从句互为同位语的名词一般为抽象名词，例如：advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wish、word等。
二、引导名词性从句的连接词1.引导名词性从句的连接词可分为三类：1.连词：that（无任何词意）whether, if（均表示“是否”）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2. 连接代词：what, whatever, who, whoever, whom, whose, whichever, whomever3. 连接副词：when, where, how, why, how many, how much, how often2. 连接词的判定：根据连接词在从句中所做的不同的成分，我们可以归纳如下：人物主语：who what宾语：whom what名词性从句表语：whom what定语：which what whose状语：when where why how (how many, how much, how often)不做成份：that if/whether as if /as though二、专题过关(一）：1._______ you don't like him is none of my business.2.When asked ____ they need most , the kids said they wanted to feel important and loved.答案：1.That 2. what(二）：______ the meeting will be held in Beijing is not known yet.What the doctors really doubt is _____my mother will recover from the serious disease soon.答案：1.Whether 2. whether(三）：It was ordered that all the soldiers _______to the front.(send)We are all for your proposal that the discussion _______.(put off)答案：1. (should) be sent 2. (should) be put off三、学法提炼1. 从句子结构入手，首先分清楚简单句和复合句。
名词性从句
名词性从句名词性从句是一种具有名词性功能的非独立分句。
其中包括主语从句、宾语从句、表语从句、同位语从句。
一、主语从句--从句充当主语1）that 引导的主语从句That位于句首，引导表示肯定含义的从句That we are invited to a concert this evening is good news to us.that从句作主语时，常用it作形式主语，常见的句型有：______________________________________________________________________________________ ______________________________________________________________________________________ It is certain that she will do well in her exam.______________________________________________________________________________________ ______________________________________________________________________________________ It is no surprise that our team has won the game.______________________________________________________________________________________ ______________________________________________________________________________________ It is said that Mr. Green has arrived in Beijing.______________________________________________________________________________________ ______________________________________________________________________________________ It happened to me that I had been away when he called.其他引导词引导的主语从句引导词含义引导词所做成分相当于例句what 某物主语、宾语something that What I need is time.whether 是否连接词/ Whether it is true remains a question.who 谁主语/ Who will go there is not certain.whom 谁宾语/ To whom you’ll speak remains to be seen. whoever 无论谁主语any one who Whoever breaks law will be punished. whomever 无论谁宾语anyone who To whomever you give the book is none of mybusiness.Whatever you do means a lot to me. whatever 无论什么主语、宾语anythingthat/whichwhen 何时时间状语/ When we start is not decided.where 何地地点状语/ Where we go is not decided.why 为什么原因状语/ Why we is late is unknown.how 怎样方式状语/ How he goes there is a puzzle.Exercise:1.It gives his life a flying start ______ he has gone aboard for further education.A.whatB.whenC.thatD.how2.-- Did Mr. Jones leave office?-- No.________ was lying.A.Those who told you thatB.No matter who told youC. Whoever told you thatD.Whoever told you that3._________matters most in learning English is enough practice.A.WhatB. WhyC. WhereD. Which4.It is none of your business _________ other people think about you. Believe yourself.A.howB.whatC.whichD.when5.________ team wins on Saturday will go through to the national championships.A.No matter whatB. No matter whichC. WhateverD. Whichever6.It makes little difference to me ________ we go or stay.A.whetherB.whereC.thatD.how7.It never occurred to me _________ you could succeed in persuading him to change his mind.A.whichB.whatC.thatD.if8.It has been proved _______ eating vegetables in childhood helps to protect you against serious illnesses in later life.A.ifB.becauseC.whenD.that9.It seems to be a strong competition in China for senior high students to enter universities does exist in other countries as well.A.ItB. WhichC. WhatD. That10.It has never clear________ the man hadn’t reported the accident sooner.A.thatB.howC.whenD.why11.It is immediately clear ________the financial crisis will soon be over.A.sinceB.whatC.whenD.whether12. It worried her a bit _______ her hair was turning grey.A. whichB. thatC. ifD. for13. _______ is a fact that English is being accepted as an international language.A. ThereB. ThisC. ThatD. It14. _______ what they told me really true?A. HasB. IsC. DoesD. Have15. It matters little _____ a man dies, but ____ matters much is ____ he lives.A. how; what; howB. how; it; howC. why; it; whyD. that; what; that16. ____ she couldn't understand was ____ fewer and fewer students showed interestin her lessons.A. What; whyB. That; whatC. What; becauseD. Why; that17. It is pretty well understood _______ controls the flow of carbon dioxide in and outthe atmosphere today.A. thatB. whenC. whatD. how18. _______ fashion differs from country to country may reflect the culturaldifferences from one aspect.A. WhatB. ThatC. ThisD. Which19. -What made her parents so angry?- _______ she had failed in the examination.A. AsB. BecauseC. SinceD. That20. _______ we'll go camping tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where11-15 DBDBA 16-20 ACBDB二、宾语从句--从句部分充当主句的宾语that引导的宾语从句1、常见的可以接that从句做宾语的动词有see, say, know, imagine, discover, believe, tell show, think, consider, be sure, be certain, be afraid, be sorry, be glad等。
名词性从句的种类和用法
名词性从句的种类和用法名词性从句是指在句子中充当名词的从句，它可以作为主语、宾语、表语和同位语。
名词性从句分为三种主要类型：主语从句、宾语从句和表语从句。
本文将详细介绍每种类型的名词性从句的用法和示例。
一、主语从句主语从句作为主句的主语，常出现在句子的开头或后面。
主语从句通常使用"that"或"whether/if"引导。
以下是主语从句的一些例子：1. 从句使用"that"引导：- That he is late worries me.（他迟到了让我担心。
）- It is essential that we arrive on time.（我们准时到达是非常重要的。
）2. 从句使用"whether/if"引导：- Whether she will come to the party is still uncertain.（她是否会来参加派对还不确定。
）- If it rains tomorrow, we will stay at home.（如果明天下雨，我们会待在家里。
）二、宾语从句宾语从句作为主句的宾语，常出现在动词后面或介词后面。
宾语从句通常使用"that"引导，但有时可以省略"that"。
以下是宾语从句的一些例子：1. 从句使用"that"引导：- She told me that she loved me.（她告诉我她爱我。
）- They believe that he will win the competition.（他们相信他会赢得比赛。
）2. 从句省略"that"：- He said he was busy.（他说他很忙。
）- I know you can do it.（我知道你能做到。
）三、表语从句表语从句用来描述主语或宾语的特征或状态，通常出现在系动词后面。
(完整版)名词性从句主语从句
主语从句导入：观察并指出句子成分A tree has fallen across the road.You are a student.To find your way can be a problem.Smoking is bad for you.一．概念：主语：主语是指句子谈论的主题，说明的人或事物。
也就是句中动作、行为、性质和状态的主体，一般位于句首主语从句：在句中充当主语的从句二·基本结构关系词简单句谓语动词宾语同位语That he finished writing the composition in such a short time surprised us all.他在很短的时间内写完作文让我们都很惊讶三关系词(引导词)1．从属连词：that whetherthat 引导主语从句只起引导作用，本身无实际意义，在主语从句中不充当任何成分，但不能省略。
That she left him cut him to the heart.That he will come is certain.注意：有时为了使句子结构平衡, 避免“头重脚轻”, 常用it 作形式主语, 而把从句放在后面。
E.gThat she has made such a mistake is a pity.It is a pity that she has made such a mistake.这样就构成了下面一些常用句型:1) It is + adj. +从句It is necessary that… 有必要…It is important that …. 重要的是…It is obvious that…… 很明显……2) It +不及物动词+从句It seems/appears that... 似乎……It happened that... 碰巧……It occurred to me that…… 我突然想起……3) It + be +过去分词+从句It is said that... 据说……It is known to all that... 众所周知……It is reported that... 据报道……It is believed that... 据信……;人们相信……It is suggested that... 有人建议……It must be pointed out that... 必须指出……It has been proved that... 已证明…….4) It is + n. +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……由whether及其他连词引导的主语从句放在句首，句后都可。
名词性从句专项---主语从句,宾语从句,表语从句,同位语从句
名词性从句专项一、知识梳理/提炼要点一：句子的分类根据句子的结构可分为：①简单句-—一主一谓。
②并列句-—由等立连词and, but, so, for把两个（以上）的简单句连在一起构成。
③复合句——一个主句+从句（一个或以上）构成.根据从句在复合句中的作用，分为名词性从句、定语从句和状语从句。
名词性从句包括主语从句、表语从句、宾语从句、同位语从句。
要点二：名词性从句总述1. 主语从句——在句中作主语,可用it作形式主语，把真正的从句放在句尾.如:It is still a mystery how the prisoner escaped.犯人是如何逃跑的是个谜。
主语从句中,谓语动词一般用单数。
What引导的主语从句,可根据表语决定。
如：What he needs is that book？What he needs are some book?主语从句常用的结构有：It is well known/reported/thought/said/… that…It is natural/surprising/necessary/certain/true/clear…that…It is a pity/a shame/an honor/no surprise/no wonder…that…It doesn’t't matter whether…It seems\appears that…It happens that…2. 表语从句——位于系动词之后充当复合句的表语，引导词that 一般可以省略，还可用as if/as though/because/why引导。
如：The question is who can complete the difficult task。
问题是是能完成这项艰巨的任务.３．同位语从句——跟在名词后面，进一步说明该名词的具体内容。
名词主要有：fact, news （word)，promise, idea, truth, thought，suggestion，hope，proposal, doubt等。
名词性从句--主语从句
名词性从句---主语从句主语从句subject clauses)1、概述; 在复合句中起主语作用的从句叫主语从句。
引导主语从句的词有从属连词、连接代词、连接副词等。
引导主语从句的关联词有从属连词that、whether,连接代词: who, what, which , whom, whose, whatever, who (m) ever, whichever;连接副词: when, where, how, why, however, whenever, wherever等。
That you don't like him is none of my business.你不喜欢他不管我的事。
What he said is true.他说的是真的。
2、从属连词that, whether 引导的主语从句。
从属连词that, whether 在主语从句中的作用只是引导主语从句，它们在从句中不担任成分，不能省略。
Whether she will come or not is still a question.她是否会来仍是一个问题。
That they will go is certain.他们去是肯定的。
Whether she's coming or not doesn't matter too much.她来不来没有多大关系。
3、it作形式主语引导主语从句。
如果主语从句太长，为避免句子结构头重脚轻，我们可用it作形式主语,而把主语从句放在主句谓语部分之后。
That引导的主语从句可用it代替，that 不可省略。
用作it作形式主语的结构:(1) It is/was +形容词+that从句It's natural that... 很自然.... It's obvious that...显而易见......It's fortunate that幸透的是It's impossible that. (不)可能It's unlikely that..不可能It's strange that...奇怪的是(2 It is/was +名司+that从句It's a pity that.-遺憾的是It's a fact that..事実是It's good news that..是好消息-- It's a wonder that.不足カ奇It's an honor that..非常荣幸的是--- It's a shame that.. .真是可耻It's common knowledge that .是常沢..(3) It +不及物动词+that从句It seems that.--似乎It happened that..磋巧It appears that..看来It turns out that..結果(4) It is/was +过去分词+that从句It's not known that.. --不得而知It's said that..据説It's reported that.-据狠道It's decided that..尚未决定It's believed that..据相信It's announced that..据宣布-It suddenly struck me (occur to me that.我突然想到(感觉到)-(5)其他It doesn't matter是无美緊要的It makes no difference .. ,亳无区別-It is of little consequence that..无美緊要例句:It is a pity that she has made such a mistake.地犯込祥的錯俣是令人遺憾的事。
英语语法-名词性从句之主语从句
What we need is more time.
Which book I shall choose hasn’t been decided.
Whoever breaks the law will be punished.
结论：
谁 主语 who在主语从句中充当__________, 译为“_______ ”。 what在主语从句中充当__________, 译为“_______ 所…的 ”。 宾语 定语 which在主语从句中充当__________, 译为“_______ 哪一个”。 主语 whoever在主语从句中充当_________, 译为“_______ 无论谁”。
缺什么补什么
1. that 引导
that 引导的主语从句，不做成分，无意义，通常不能省 略，在句中具有“两不”原则： ① 不作句子成分； ② 没有实际意义。 • 当它引导的主语从句置于句首时，that不能省略； • 如果用it作形式主语，则把主语从句放在句末，这时 that可以省略。如： That he will come is certain. It was a pity (that) you didn't go to the talk.
Deal with Learning Plan
找出下列句子中的主语从句
导学案课前单
6. Whoever breaks the law will be punished.
7. When we will leave hasn’t been decided.
8. Where the meeting will be held is not known.
1、English is very useful for us . 2、The subject I am interested in is English. 3、We need to master English well. 4、He want to learn the language , English . (同位语)
语法名词性从句与主语从句的区别
语法名词性从句与主语从句的区别在语法中，名词性从句和主语从句都属于从属从句的一种。
它们在句子中充当名词的角色，起到句子成分的作用。
然而，名词性从句和主语从句之间存在一些区别。
下面将详细介绍这两种从句的区别。
一、名词性从句名词性从句是指在句子中担当名词功能的从句，可以充当主语、宾语、表语或同位语。
名词性从句是一个整体，通常由引导词引导，引导词有：that、wh-疑问词（如：what、which、who、whom、whose、when、where、why、how等）等。
名词性从句作为主语时，常用于表示观点、看法、信念等。
例如：1. What she said is true.（她说的是真的。
）2. That he is coming is good news.（他要来是个好消息。
）名词性从句作为宾语时，常用于动词、形容词或介词后面，起到宾语的作用。
例如：1. I don't know what he wants.（我不知道他想要什么。
）2. She is worried about whether she can pass the exam.（她担心自己能否通过考试。
）名词性从句作为表语时，常用于be动词后面，起到表语的作用。
例如：1. The problem is whether he will come or not.（问题是他会不会来。
）2. The fact is that he is a good singer.（事实是他是个好歌手。
）名词性从句作为同位语时，常用于名词后面，用来解释、说明这个名词。
例如：1. The idea that she proposed is worth considering.（她提出的建议值得考虑。
）2. His belief that he can succeed motivates him.（他认为自己能够成功的信念激励着他。
）二、主语从句主语从句是指在句子中充当主语的从句。
名词性从句之主语从句讲解
名词性从句之主语从句讲解TYYGROUP system office room 【TYYUA16H-TYY-TYYYUA8Q8-名词性从句---主语从句1. What is needed for the space trip is careful preparation.2. Her wish is that she can lose weight soon.3. I think that woman can reach every high achievements in many fields of science.4. We were very excited at the news that our team had won.引导名词性从句的关联词可分为三类：一．从属连词：that（无任何词意）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二．连接代词：what, who, whom, which，whose, whatever, whoever, whichever(作主宾表定)三．连接副词：when, where, how, why(作状语)I. 主语从句1.定义：在句子中担当主语的是一个从句,这个从句就叫做主语从句。
2.位置：主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。
3.引导主语从句的关联词：(1)从属连词that,whether,if (在从句中不充当成分，仅起连接作用)That Jack won the match yesterday surprised us.Whether he’ll come here isn’t clear. (此处不能用if)(2)连接代词who, whom, whose, what, which, whoever, whatever, whichever(充当主宾表定) What she did is not known.Whoever comes is welcome.(3)连接副词 where,when,how,why(在从句中充当状语)How this happened is not clear to anyone.When the meeting will be held is decided by our manager.4.有时为了避免头重脚轻，常用it作形式主语，而把真正主语放在句子末尾。
《名词性从句-----主语从句》教学设计
1.了解名词性从句的概念，能判断出复合句中是否含有名词性从句，能根据语法功能区分出各类名词性从句。
2.了解并掌握主语从句的语法功能及用法。
3.了解并掌握it作形式主语的各种句型结构，能区分与it引导的强调句型的不同。
4.了解并掌握主语从句连接词的使用特例，带-ever的连接词引导的主语从句在复合句中的位置。
{语法导入}一、名词性从句的概念及语法功能概念：在句子中起___________ 作用的句子叫名词性从句。
名词性从句的功能相当于名词词组,它在复合句中能担任_______________________________________________________ 等, 因此根据它在句中不同的语法功能,名词从句又可分为_______________________________________________________________。
【即时巩固练习】划出下列句子中名词性从句，并判断其属于哪种名词性从句？Who will win the match is still unknown.I want to know what he has told you.The fact is that we have lost the game.The news that we won the game is exciting.二、名词性从句的连接词（一）引导名词性从句的连接词可分为三类:连接词/从属连词that, whether, if连接代词: what, whatever, who, whoever, whom, whose, which连接副词: when, where, how, why（二）不可省略的连接词：1、介词后的连接词2、引导主语从句和同位语从句的连接词不可省略。
【即时巩固练习】1）她被选中了令我们很开心。
2）我们听到消息说我们队赢了。
{语法讲解}【主语从句】一、主语从句的语法功能在复合句中作__________ 的从句叫主语从句。
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It is a fact that John won a gold medal. 2. That I missed the beginning of the film is a pity.
It is a pity that I missed the beginning of the film . 3. That we will go travelling is good news. It is good news that we will go travelling.
形式主语
真正主语
第一种：
形式主语It代替that 主语从句
1. It is + 名词 + that 从句 It is a pity that… It is a shame that …
It is a fact that …. It is an honor that…. 等等
形式主语It代替that 主语从句
主语
seems
possible.动词 That Tom will win the tennis game
seems
表语
possible.
主句
• 主语从句： 在主句中担当主语的是一个从句，这 个从句就叫主语从句。 • 引导词： 从属连词：that, whether • 关系代词：who, whom, what • which, whose • 关系副词：when, where, why
例句 Whom did the boy help? She is an old woman.
Whom the boy helped is an old woman.
Where does he live? It is Beijing. Where he lives is Beijing.
关系代词：
what which who whom等引导主语从句
It + be + 过去分词 + that…
4. That it will rain tomorrow is believed It is believed that it will rain tomorrow. 5.That the waiter works hard is thought. It is thought that the waiter works hard. 6. That the American president will visit China is reported. It is reported that the American President will visit China.
由that引导主语从句
例句： 把两句话合并成一句话 1. Light travels in straight lines. It is known to all.
That light travels in straight lines is known to all.
2. We should wash our hands before meals. It is necessary.
It is reported that ten persons died in the accident.
3. That the earth was not round was believed in ancient times. It was believed in ancient times that the earth was not round.
is necessary. 4. Students say hello to their teachers. It is polite.
That students say hello to their teachers.
is polite.
由that引导主语从句
• 把两句话合并成一句话 5. Your mother didn’t attend the party yesterday. It is a pity.
第四种:形式主语It代替that 主语从句 • It + be + 过去分词 + that…
• It is said that … 据说…..
• It is reported that
据报道…
众所周知….
• It is known to all that …. • It is believed that …. • It is thought that ….
把两句话合并成一句话 1.What do their parents need? It is more experience. What their parents need is more experience.
2.Which doctors will be sent to Wenchuan? It has not been decided. Which doctors will be sent to Wenchuan hasn’t been decided.
It is right that light travels in straight lines. That he got a gold medal is real. It is real that he got a gold medal.
把下列句子用it 做形式主语
1. That Tom will win the game is possible.
名词性从句（一 ）
名 词 性 从 句
主 语 从 句
宾 语 从 句
同 位 语 从 句
表 语 从 句
主语从句
• 把两句话合并成一句话 1. Tom will win the tennis game. It seems impossible.
That Tom will win the tennis game
It is necessary that we must complete this work before 5 o’clcok.
第三种：形式主语It代替that 主语从句
It +不及物动词 +that …
1) That I met my Geography teacher in the street happened. It happened that I met my Geography teacher in the street .
由that引导主语从句
• 把两句话合并成一句话
7. There will be rainy tomorrow. It is possible. That there will be rainy tomorrow is possible.
8.Teenagers smoke. It is wrong. That teenagers smoke is wrong.
由 whether （“是否”）引导的主语从句
• 在主语从句中只能用 此意义时不能用
whether （是否），
if 替换。
形式主语It代替that 主语从句
That we study English well is necessary.
It
is necessary that we study English well.
人们相信… 人们认为….
It + be + 过去分词 + that…
1. That his father has gone to Tianjin is said. It is said that his father has gone to Tianjin. 2. That ten persons died in the accident is reported.
2) That I picked a red wallet on the way to school happened.
It happened that I picked a red wallet on the way to school. 3) That the manager and the boss went travelling happened. It happened that the manager and the boss went travelling.
It is possible that Tom will win the game. 2. That we should wash our hands before meals is necessary. It is necessary that we should wash our hands before meals. 3. That we must complete this work before 5 o’clcock is necessary.
第二种：形式主语It代替that 主语从句
It is + 形容词+ that…
• It is important that…
• It is necessary that…
• It is polite that…. • It is wrong that…等等
把两句话合并成一句话
例句 That light travels in straight lines is right
由 whether （“是否”）引导的主语从句
1. Will he go abroad? It is not known.
Whether he will go abroad is not known.
2. Will it rain tomorrow? It is not known.