主语从句+表语从句+同位语从句
高二英语名词性从句
Virtue is whatever one must possess first. 品德应是一个人必须首先具备的。
The difficulty was how he could prove his ideas to other scientists. 困难在于他怎样才 能向其他科学家证实他的想法。
当that从句与另一名词性从句并列做宾语时， that不能省略。 Everyone could see what was happening and that she was really worried. 大家都看得 出发生了什么事，也知道她真得十分焦急。
重点：句中若有两个并列的that 从句做宾语， 即使省略了第一个that，也不可以省略第二 个that。 Eg. I believe (that) you’ve done your best and that things will improve. 我想你已经尽 力了，我相信一切会好起来的。
“ Where has my mother gone?” he wondered. ----He wondered where his mother had gone.
2) 由how和what 引导的感叹句做宾语从句 时，仍然用感叹句的语序。 “How important the forest is!”
She wanted to see which shops offered the best advice and service. 她想了解哪家酒店提出的建议和提供的服务最好。 Go to stamp sales and buy whatever you can afford. 到邮票销售点，把你能够买得起的邮票买下来。 Take whichever you like best. 挑选你最喜欢的随便拿一个。 We will see what we can discover. 我们倒要看看会发现什么情况。 Do you know where he lives? I don’t quite understand why more women smoke than men in Britain.
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.
高中英语2024届高考名词性从句知识分类讲解(主语从句+宾语从句+表语从句+同位语从句)
高考英语名词性从句知识讲解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】1.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。
名词性从句之主语,同位语,表语
名词性从句之主语从句，同位语从句，表语从句1.主语从句介绍：When we will finish the work is still a problem.=It’s still a problem when we will finish?Whether she will come or not makes no difference= it makes no difference whether (if) she will come or not.That he survived the accident is a miracle= it is a miracle that he survived in the accident.Note: 形式主语it 引入：It is too difficult for me to understand the sentenceIt is too easy to solve the problemIt’s funny to play basketball.It 可引导的主语从句1.it +名词+从句it is a fact that he didn’t pass the exam.2.It+形容词+从句It is strange that he failed to pass the exam3.It+不及物动词+从句It seems that he likes eating bananas.4.It+过去分词+从句It is said that he has passed the exam5.其它It doesn’t matter if you don’t pass the exam.2.表语从句介绍1表语介绍The book is on the desk (prep)You looks beautiful (adj)This is a book (n)2.表语从句介绍It seems that it is going to rainThis is how Jane lives.The reason of his not coming is that he was ill.The problem is whether you love her.3.同位语从句介绍1.同位语介绍We both have black hair and black eyes.This is a photo of me and my twin sister LiuYing2.同位语从句介绍定义：同位于从句用于对名词作进一步解释，说明名词的具体内容。
从句
4）This is the fastest train that there is to Beijing.
5） 当先行词被all, no, any, a few, the only, the very等修饰时 This is the very dictionary that is of great help. 6）It is the most interesting film that I have ever seen. The first English novel that I read was A Tale of Two Cities.
3. Shopping for clothes is not the same experience for a man is for a woman. A. when B. that C. as √ D. than 4. Is there anything else this evening? A. which B. who you want to get ready for the party
2）主语从句常见句型
① It is + adj. / 过去分词 + that… ② It happens/occurs that… ③ It must be pointed out that…
④ It’s a good thing that…
2、宾语从句
that, whether who, what, which, when, where, how, why
3、表语从句
that, whether who, what, which, when, where, how, why
The truth is that he has never been abroad. The doctor’s dilemma is whether he should tell a lie to the patient. China is not what it used to be.
主语从句宾语从句表语从句同位语从句名词性从句讲解
பைடு நூலகம்
二、同位语从句与定语从句的不同之处
1、含义不同：同位语从句是对前面名词的解释说明，知道具体 内容，指同一件事（可以划等号）；定语从句用来修饰、限定前 面的名词，不知道具体内容。
e.g. The news that our team has won the final match is encouraging. （从句说明“消息”的内容：我们
3) 复合句 主句+引导词+从句
请判断下列句子是简单句、并列句还是复合句：
1.He often reads English in the morning.
简单句
2.You help him and he helps you.
并列句
3.My suggestion is that we should study step by step.
much time online.
B 3.The first request that he made was to ask for freedom.
4. Do you have any idea where we will be sent?
B 5. Is this the company where your father works? B 6. This is the reason that he gave for his absence.
队取得了决赛胜利。）
The news that you told us is really encouraging.
（从句对“消息”加以限定：是你告诉我们的，而非来自其他 渠道。但消息是何内容却不得而知。）
二、同位语从句与定语从句的不同之处
初中英语同位语从句、主语从句及表语从句
同位语从句，主语从句和表语从句一、同位语从句1.同位语：当两个指同一事物的句子成分放在同等位置时，一个句子成分被用来说明或解释另一个句子成分，前者就叫做后者的同位语。
这两个句子成分多由名词或代词担任。
同位语通常放在其说明的名词或代词之后。
eg:We have two children, a boy and a girl.eg:We ,the chinese people , are determinded to build China into a powerful an prosperous country.2.同位语从句：与先行词（名词或代词）同位或等同的从句叫做同位语从句。
同位语从句的先行词多为fact, news, idea, opinion, thought, suggestion, promise, word(消息), message, request, order, proposal, plan, question等，多由连接代词that引导。
eg:The fact that the money has gone doesn’t mean it was stolen.eg:The hope that he may recover is faint.3.同位语从句的引导词及特点：1）连接代词that 引导的同位语从句中，that只起连接作用,不充当句子的成分。
2）连接代词who, which, what和连接副词where, when, why, how引导的同位语从句中，其引导词在句子中起连接作用即将主句与从句连接起来，且要在从句中充当成分。
3）从属连词whether, if引导同位语从句中，whether, if只起连接作用，不在句子中充当成分，也不替代先行词。
注：连接代词与连接副词，关系代词与关系副词的区别如下：连接代词和连接副词是引导同位语从句的，其在句子中起连接作用即将主句与从句连接起来，且要在从句中充当成分（that除外）；关系代词与关系副词是引导定语从句的，其在句子中除了具备与连接代词和连接副词同等的作用外，即起连接作用（连接主从句），在句子中充当成分，而且还要替代先行词。
主语从句_表语从句_同位语从句)
我的问题是他是否离开了
注：if不能引导表语从句
3）wh-疑问句（who/where/how..）当表语从 句为疑问的语气时，用wh-疑问句来引导，要 注意从句语序为陈述语序。 1.My question is who left. 我想问的是谁离开了 2.That’s what he wants. 那是他想要的。 3.This is where they once lived. 这就是他们曾经住过的地方。 4.That is why he didn’t come here. 这就是他为何没到这儿来的原因。
1.Africa is a big continent.
2.The patient is out of danger. 3.The sun is up. 4.The egg smells good. 5.Her job is selling computers. 主语+系动词+表语
exercises
Combine the sentences using “the fact that” Ann was late. That didn’t surprise me. Rosa didn’t come. That made me angry. I am a little tired. I feel fine except for that. Many people live in poverty. That must concern all of us. Lily didn’t pass the entrance examination. She was not admitted to the university due to that .
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高中语法—主语从句+表语从句+同位语从句❖讲解●主语从句一．定义：在句中起主语作用的从句二．语序—陈述句语序When will he come is not known. ×→When he will come is not knownWhether can animals be well protected is of great importance.×→Whether animals can be well protected is of great importance.→陈述句语序：连接词+主语+谓语+其他成分三．连接词1.从属连词：that/whether①that：没有意义，不作成分，不可省略(that=口袋→把句子装起来）@3.10,25,28,30②whether“是否”不可省略,不可用if代替---Whether they would support us was a problem.（if“如果”有歧义）@4.5 ,312.连接代词①who,whom,what,which,whose,whoever,whomever,whatever,whichever②特定意义，不可省略③在主语从句中做成分What we need is water.---作宾语@29Who will go makes no difference.---作主语@12，14,17,19，#4,12Who he is remains uncertain.---作表语Whose shirt it is remains unknown. ---作定语#16*Whoever(Anyone who) wants to enter into this school must take the exam. ---无论是谁@18*Whatever(Anything that) she did was right. ---@2①when,why,how,where②特定意义，不可省略③作状语，表示时间，地点，原因，方式When he will be back depends on the weather.---时间状语Where the test will be given is not yet decided.---地点状语#14Why dinosaurs died out remains a puzzle.---原因状语#13How this happened is not clear to anyone. ---方式状语四．时态：不受主句的时态影响和限制五．It作形式主语1.结构it is...that...（无意义，不做成分）①It is certain that she will do well in her exam. →It is+a.+that...②It’s a pity that we can’t go.→It is+n.词组+that...(no wander难怪，an honor荣耀）@1，16,20③It is said that Tiny Times is a good movie→It is said,reported,suggested,well-known+that...@13#6④It happened that I was out that day.→ It + 特殊动词（seem似乎，happen碰巧doesn’t matter）+ that ...@6,7,8 2.It is+其他连接词（有意义，作成分）It was a problem whether they would support us.It is hard to understand why there is gravity.@11,15,#73.否定前移It seems that they are not from the same university.→It doesn’t seem that they are from the same university.六．注意1.主语从句中的连词---不能重叠使用That whether he will help others is a fact.×→That he will help others is a fact.2.含主语从句的主句谓语动词---用单数第三人称形式When he will come are a puzzle.×→When he will come is a puzzle.@9,#23.what 引导的主语从句---根据表语决定主句动词的单复数形式①What he needs is that book.②What he needs are some books.●表语从句That is what he is worried about.一．定义：在句子中作表语的句子，be,look,seem,appear,sound,feel,remain+表语从句二．语序—陈述句语序三．连接词=主语从句@191.seem,appear,look,sound,feel+as if/as though“好像...”①It looked as f it was going to rain.②It sounds as though someone is knocking at the door.2.The reason why I came late is that my car broke down on the half way.He came late. That’s because his car broke down.His car broke down on the half way. That’s why he came late.四．时态：与主句无关●同位语从句The fact （名词）that he is older than me is obvious.一．定义:解释说明某一名词的内容和实质的从句=该名词(fact,idea,news,promise)I have no idea who will be our teacher.The question why the actress was killed is not clear.二．语序—陈述句语序三．连接词=主语从句，都不能省略#3四．时态：与主句无关❖当堂练习主语从句答题技巧：动词前面是主从，缺啥补啥选连词，that句首不能省，if不可替whether,it形主要记牢，常用that不可省，不做成分无意义，其他连词作成分.1.What a pity _____is _____you didn’t arrive by daylight.A. there, becauseB. it, thatC. he, whenD. that, forB.你白天没来真可惜呀，①what a pity it is!...真可惜呀②it作形式主语，真正主语that you didn’t arrive by daylight2. We are ready to do ______ the country wants us to do.A. whatB. whichC. no matter whatD. whateverD①根据句意，选无论什么CD②no matter what不能引导名词性从句，不能放句中；引导让步状语从句，放句首：No matter what happened, he would not mind.③whatever,句首句中都可以放3.It is a pity that you (should) miss such a good chance.___ he made an important speech at the meeting was true.A.ThatB. WhyC. WhatD. HowA.that引导主语从句，不做成分，不可省略4. ___we’ll go camping tomorrow depends on the weather .A IfB WhetherC ThatD WhereB句意是否5.____ his dream of going to college will come true is uncertain.That B. Whether C. If D. Even ifB句意是否6. It is known to us ___ where there is pollution, there is harm.A. whichB. whereC. whatD. ThatD.it作形式主语7.It’s known to us all ___ a form of energy .A.water isB. that water isC. is waterD. that water toB.It is known to us all that...it作形式主语8. It worried her a bit ___ her hair was turning gray.A. whetherB. thatC. whatD. WhenB.it作形式主语9.What I say and think ___ none of your business.A.isB. areC. has D haveA含主语从句的主句谓语动词---用单数第三人称形式10--- I saw your neighbor break your window with a basketball.--- __A__ it made me nearly mad.A. That he brokeB. What he brokeC. He brokeD. His break11.It remains a question _A___ we can get so much money in such a short time.A.howB. thatC. whenD. what12. They lost their way in the forest and __A__ made matters worse was _表语从句__ night began to fall.A. what; thatB. it; thatC. what; whenD. which; what13. ___A_____that they found an unusual plant in the forest.A. It is saidB. They are saidC. It saidD. It says14. ___A__ caused the accident is still a complete mystery.A. WhatB. ThatC. HowD. Where15. It worried Mary a lot __A___ she would pass the college entrance examination.A. whetherB. ifC. thatD. how16. __A__ is no possibility ______ Bob will win the first prize in the match.A. There, thatB. It, thatC. There, whetherD. It, whetherThere is no possibility=it is impossible含有no一般用there：there is no doubt17. ___B_surprised me most was _____such a little girl of seven could play the violin so well.A. That; whatB. What; thatC. That; thatD. What; whatThat引导表语从句18. ___C__ helped to save the drowning girl is worth praising.A. WhoB. AnyoneC. WhoeverD. The personWhoever=anyone who19. ___A_ she couldn’t understand was _____ fewer and fewer students showed interest in her lessons.A. What; whyB. That; whyC. What; becauseD. Why; thatWhy引导表语从句20. It was __A__ he said ___ disappointed me.A. What; thatB. That; thatC. What; whatD. That;what❖名词性从句综合练习名词性从句答题技巧：动词后面是宾从，动词前面是主从，be的后面加表从，名词后面同位语；一看陈述句语序，二看连词选什么，连接代词看缺啥，连接副词看句意；主从that不可省，同位连词都留下，三看时态四it，既作形主又形宾。