名词性从句详细讲解课件

Chinese president attends G20

Seoul Summit SEOUL, Nov. 12 (Xinhua) -- Chinese President Hu Jintao and leaders of other Group of 20 (G20) membersgathered here Friday to address the challenges to the ongoing global economic recovery and work out strategies to achieve strong, sustainable and balanced global growth. At the Seoul summit, the leaders will discuss the world economic situation, the

"Framework for Strong, Sustainable and Balanced global growth," the reform of global financial institutions, the strengthening of financial regulations, a global financial safety net and development issues.

China's Guangzhouready for 16th Asian Games As Guangzhou prepares to kick-start the largest Asian Games in history tonight, it seems China's hands-on experience in organizing world events is turning into a reliable model, analysts said Thursday. The 16th Asian Games, or Asiad, launches tonight with a four-hour opening ceremony. According to the latest statistics released by the Olympic Council of Asia, 9,704 athletes will compete at the Games, the largest number in history, accompanied by 4,750 officials representing 45 Asian countries and regions. * Yang fuhe Noun Clauses 名词性从句定义: 在句子中起名词作用的从句叫名

名词性从句又可分为宾语从句、表语从句、主语从句和同位语从句。

词从句。作用: 在复合句中作宾语、表语、主语和同位语因此，1. 作动词的宾语1) 引导词that 可省略I hear (that) he will go to Shanghai tomorrow. 2) 由what, whether (if) 引导I want to know what he has told you. I wonder whether you can change this note for me. 3) 动词+间接宾语+宾语从句She told me that she would accept my invitation. 2. 作介词的宾语Our success depends upon howwell we can cooperate with one another.

3. It 作为形式宾语He has made it clear that he will not give

in. See to it that children don ' t catch cold. 4. 否定的转移主句的谓语动词为think, consider, suppose, believe, expect, fancy, guess, imagine 等, 其后的宾语从句若含有否定词not, 一般要把否定词not 转移到主句谓语上, 从句谓语用肯定. I don't think this dress fits you well. 5. that 不能省略的情

况1)and 连接两个宾语从句,that 宾语从句放在and 后Everybody could see what happened and that Tom was frightened. 2)that 引导的宾语从句作介词宾语时I know nothing about him except that he is from the south. 3)that 从句位于句首时That he ever said such a thing I simply don ' t believe. 4) 主句谓语动词与

that 从句之间有插入语时We decided, in view of his special circumstances, that we would admit him for a probationary. 6. 宾语从句的时态1) 主句用过去时, 从句用一般过去时(如从句表示客

观真理, 可用现在时） Did you see that the boys were playing football on the playground at that time? Yesterday Tom said that the earth goes round the sun. 2）主句为现在时时, 从句可根据需要选用各种时态I think that the Green ' s have left for Hawaii.

I want to know if/whether he will go surfing this afternoon.

3）动词suggest（建议）, insist（坚持, 主张）, prefer（宁愿）,

request（要求）, require（要求,命令）, demand（要求）, order（命令）, comma nd命令）,advise（建议）等词后的宾语从句中，谓语动词要用虚拟语气，其构成是“should+动词原形”，其中should可省略It was suggested that more teachers should be sent there to help them. Tominsisted that his leadership be recognized by all the boys. 7. 宾语从句的引导词1）连词: that, if, whether 2）连接代词: who, whose, what, which 3）连接副词: when, where, how, why 作业: 用whose, whom, what, how, that 填空. 1.I think ________ he will be

all right in a few days. 2.Do you know ___________ th ey are waiting for? 3. He asked ____ d ictionary it was.

4. Please pay attention to ____ the teacher said.

5. Can you tell me ______ I can get to the railway station? 表

语从句放在系动词之后，一般结构是“主语+连系动词+表语从句” 1、由that引导，that不作成分，只起连接作用。The fact is that we

have lost the game.

The trouble is that I have lost his address. 2

、由whether 引导表示不确定，由because 引导表示原因。The

point is whether we should lend him the money.

It is because I have ever heard of the story. 3. what, which,

who, whom, whose 等连接代词及when, where, how, why 等连接副词既引导句子又充当一定的句子成分. The problem is who we can get to replace her.

The question is how he did it.

That was what she did this morning on reaching the attic. 4. as if 常与look, seem, sound 等连系动词连用. She looks as if she would cry. 5. 在一些表示“建议，劝说，命令”的名词后的表语从句中，谓语动词用虚拟语气。My suggestion is that we （should ）start early tomorrow. 1.We cannot figure out _____________________________ quite a number of insects, birds, and animals are dying out. A. that

B. as

C. why

D. when 2.A modern city

has been set up in ___ was a wasteland ten years ago.

A. what

B. which

C. that

D. where

3.Parents are taught to understand__important education is to their children 's future. A. that B. how

C. such

D. so 4.You are saying that

everyone should be equal, and this is ___ I disagree.

A. why

B. where

C. what

D. how C A B B 5.I think

Father would like to know___I 've been up to so far, so I decide to send him a quick note. A. which B. why C. what D.

名词性从句超详细讲解]

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高一语法专题：名词性从句 在句子中起名词作用的从句叫名词性从句。名词性从句的功能相当于名词词组，它在 复合句中能担任主语、宾语、表语、同位语，因此根据它在句中不同的语法功能，名词性 从句又可分为主语从句、宾语从句、表语从句、同位语从句。 引导名词性从句的词叫做连接词，包括：1. 连词（在名词性从句中只起连接作用，不 作成分） 2. 连接代词（在名词性从句中作主语、宾语 或表语） 3. 连接副词（在名词性从句中作状语） I 主语从句：是在主句中作主语的从句。它由连接词引导，通常位于谓语动词之前。 连接词： 1. 连词：在从句中不充当任何成分，常见的引导主语从句的连词有that, whether。 That he got the first prize excited him much. 他获得一等奖一事使他非常兴奋。 It is doubtful whether we can get there on time. 我们能否按时到达那儿还不确定。 1）that引导的主语从句：在从句中不作任何成分，也没有实际意义。一般情况 下that不可省略。 That light travels in straight lines is known to all. 众所周知，光沿直线传播。 That you don't like him is none of my business. 你不喜欢他不关我的事。 2 Whether he can finish his task on time is of great importance. 他是否能按时完成任务非常重要。 Whether you can succeed or not depends on how hard you work at it. 你能否成功取决于你努力的程度。 2.连接代词：在从句中起名词或代词的作用，常作从句的主语、宾语、表语或定语，有具 体意义且不能省略。常见的连接代词有who, whom, whose, what, which, whoever, whomever, whatever, whichever。 What we should do with the problem is undecided. 我们如何处理这个问题还未作出决定。（what引导主语从句，不表疑问意义） Whom the letter was from is still unknown. 这封信是谁邮寄的还不清楚。 3.连接副词：在从句中起副词的作用，常作从句的状语，表示时间、地点、原因、方式等。 常见的连接副词有when, where, how, why, whenever, wherever, however等。 Why he did that wasn't quite clear.

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名词性从句

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名词性从句 名词性从句是由if, whether, that 和各种疑问词充当连接词所引导的从句，其功同名词一样。 一．主语从句 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。 1. It 作形式主语和it引导强调句的比较 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。被强调部分指人是也可用who/whom。例如：

It is a pity that you didn't go to see the film. It doesn't interest me whether you succeed or not. It is in the morning that the murder took place. It is John that broke the window. 2. 用it 作形式主语的结构 (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 is ＋不及物动词＋从句

It seems that… 似乎… It happened that… 碰巧… (4) it ＋过去分词＋从句 It is reported that… 据报道… It has been proved that… 已证实… 3. 主语从句不可位于句首的五种情况 (1) if 引导的主语从句不可居于复合句句首。 (2) It is said , (reported) …结构中的主语从句不可提前。例如： It is said that President Jingo will visit our school next week. (right) That President Jiang will visit our school next week is said. (wrong)

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名词性从句讲解

名词性从句 一：examples: What you need is more practice. When we shall have our sports meet is still a question. I don’t know where he lives. This is where he lives . = This is the place where he lives. Give it to whomever you trust. I find it wrong that we blamed him for all of this. That was how they were defeated. She looked as if/though she was going to cry. Mr Smith left word with my assistant that he had returned to his own country . We got the news that our team had won the match. We can’t believe th e news that he told us. （That引导的定从句与同位语从句的区别） 二：名词性从句引导词（连接词） a. 连词：that ; if /whether ; b. 连接代词what /whatever which /whichever who/ whoever whom/whomever whose c. 连接副词when /whenever / where / whevever / why/ how That 从句： 1.主语从句：it That we are invited to a concert this evening is good news to us. （主谓一致） It is +adj +that … It is obvious that he is the best . It is +n +that ... It is no wonder that he won the first prize. It is +done +that …it is reported that he has gone abroad. 2. 宾语从句： a. Do you know (that) he has joined the army? b. We consider it necessary that he should improve his pronunciation. c. She said that she had been there and that she liked it very much. d. I know nothing about his career except that he is a graduate of Oxford University. He differed from classmates in that he devoted his spare time to reading. You may depend on it that I shall always help you. 3. 同位语从句： (fact, hope, desire, thought , suggestion, idea, news, problem, possility ,chance ) News came from the school office ____ Wang Lin had been admitted to Beijing University. A.that B. when C. which D. where 总结that 的省略问题 4. 表语从句：

高中英语名词性从句讲解资料讲解

名词性从句讲解 在复合句中起名词作用的从句叫做名词性从句。它包括主语从句、宾语从句、表语从句和同位语从句。名词性从句是中学阶段的一个重要语法项目，在历年的高考中几乎都涉及到，并且每年的命题各有变化。分析历届高考试题名词性从句考查的焦点主要有以下六个方面 1. 考查名词性从句的语序问题 2. 考查引导词that与what的区别 3. 考查it在名词性从句中作形式主语或形式宾语的用法 4. 考查whether与if的区别 5. 考查名词性从句中的疑问词+ever引导的名词性从句与no matter+疑问词引导的状语从句的区别 6. 考查名词性从句的虚拟语气问题 语法要点剖析 一、名词性从句 主语从句、表语从句、宾语从句、同位语从句，在整个句子中所起的作用，相当于一个名词。因此，这四种从句通称为名词性从句。 引导名词性从句的连接词可分为三类： 连接词：that, whether, if （不充当从句的任何成分） 连接代词：what, whatever, who, whoever, whom, whose, which. 连接副词：when, where, how, why 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, propose d, desired, etc.) that… 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 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。例如： He has told me that he will go to Shanghai tomorrow. 他已经告诉我他明天要去上海。 We must never think (that) we are good in everything while others are good in nothing. 我们决不能认为自己什么都好，别人什么都不好。 注意：在demand、order、suggest、decide、insist, desire, demand, 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”。例如： I insist that she (should) do her work alone. 我坚持要她自己工作。

高中名词性从句讲解

高中名词性从句讲解 -CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN

名词性从句 名词性从句是由if, whether, that 和各种疑问词充当连接词所引导的从句，其功同名词一样。 一．主语从句 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。 1. It 作形式主语和it引导强调句的比较 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。被强调部分指人是也可用who/whom。例如： It is a pity that you didn't go to see the film. It doesn't interest me whether you succeed or not. 2

It is in the morning that the murder took place. It is John that broke the window. 2. 用it 作形式主语的结构 (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 is ＋不及物动词＋从句 It seems that… 似乎… It happened that… 碰巧… (4) it ＋过去分词＋从句 3

名词性从句讲解

名词性从句 在句子中起名词作用的从句叫名词从句(Noun Clauses）。名词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。 一、引导名词性从句的连接词 引导名词性从句的连接词可分为三类： 第一类：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），它们在从句中均不充当任何成分。 第二类：连接代词：what, whatever, who, whoever, whom, whose, which，whichever，whomever它们常在从句中做主语、表语、宾语或定语。 第三类：连接副词：when, where, how, why它们常在从句中做状语。 二. 主语从句 在句子中做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。主语从句后的谓语动词一般用单数形式。例如： 1. What he wants to tell us is not clear. 他要跟我们说什么，还不清楚。 2. Who will win the match is still unknown. 谁能赢得这场比赛还不得而知。 3. How he became a writer is known to us. 我们都知道他是如何成为一名作家的。 4. 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。 5. Whoever leaves last must shut the window and lock the door. 6. That he was late for class again made the teacher very angry. 7. Whether we will have an exam hasn’t been decided. **有时为避免句子头重脚轻，常用it作形式主语放于句首代替主语从句，而把主语从句置于句末。常用句型如下： （1）It + be + 名词+ that从句例如： It’s a pity that you can’t go to the cinema with me. It’s no wonder that he has passed the exam. （2）It + be + 形容词+ that从句 It is necessary that we should take some measures to protect the environment. （3）It + be + 动词的过去分词+ that从句 It is reported that the star Liu Ye got married with a French girl the other day. 常用于此句型的过去分词有：said, believed, hoped, supposed, suggested等。 （4）It + 不及物动词+ that 从句 It happened that I was out when you called me. It suddenly occurred to/ stuck me that I hadn’t locked the door. **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, wonderful、good、proper、right、wrong、well、fortunate、important、necessary、useless、likely、probable、impossible etc.) that + 主语+ should + do …… It is a pity (a shame, no wonder, etc.) that…

名词性从句详解

第三章名词性从句 ●重点知识回顾 同学们，我们现在来看看名词性从句。在我们讲解这个语法项目之前，我先请你想一想，这个“名词性从句”是个名词呢还是个句子对了，是个句子。是个具有了名词性质的句子。那么你再想想，名词都能做什么句子成分呢对了。名词能做：主语，表语，宾语，定语，补足语，同位语。 在谈名词性从句之前,我们先来复习一下名词所充当的句子成分 1. Some __________(女人) working in the field. （主语） 2. No help ________ found, though they tried to. （主 语） 3. China and India _______ developing countries. （主 语） 4. The project need more workers — 5. The woman over there is a foreigner 参考答案： 1.women are 2. was 3. are 4 句中划线的名词在句中做宾语 5句中划线名词在句中做表语 名词性从句的概念 复习了名词之后，我们该来看看名词性从句了。 名词性从句的概念是什么呢名词性从句相当于名词，在主从复合句中，

可以做主句的主语，表语，宾语，同位语等。在大多数情况下，这些句子成分是由名词来充当的，所以,承担起这些作用的从句被称为名词性从句。也就是说，名词性从句包括：主语从句，表语从句，宾语从句，同位语从句.我们在初中阶段所接触到的名词性从句主要是宾语从句。下面我们简要复习一下宾语从句的有关内容。 一、宾语从句的定义 宾语从句是指在复合句中作及物动词的宾语的从句，也可以作某些形容词或介词的宾语。 二、宾语从句的用法 ( We can learn what we didn’t know. 我们学习不知道的东西。 Do you know whom they are waiting for 你知道他们在等谁吗 I wonder whether(if) daughters are valued as much as son. 我不知道是否女儿会像男孩一样受重视. I will give the present to whoever finishes the work first. 我要把这个礼物送给最先完成工作的人。 The Bachs hold what they call “family day” once a month. 巴赫一家每月举办一次他们所谓的“家庭日”。 如果主句谓语动词是make, find, see, hear等,通常把把宾语从句至于宾补之后，用it做形式宾语,从而构成：主语+谓语+形式宾语it +宾语补足语+真正的宾语,如: 、 We find it necessary that we practise spoken-English.

名词性从句课件名词性从句PPT

名词性从句课件名词性从句PPT 主语She came． / My head aches.主语＋及物动词She likes English.主语＋系动词She is happy．主语＋双宾动词She gave John a book．She bought a book for me.主语＋宾补动词She makes her mother angry．The teacher asked me to read the passage.There +beThere is a book on the desk. ＋不及物动词＋宾语＋主语补语(表语）＋间接宾语＋直接宾语＋宾语＋宾语补语简单句基本句型实例简单句的基本词序主语动词部分宾语状语（谓语）方式地点时间I bought a hat yesterday.The children ran home.We ate our meal in silence.The car stopped suddenly.Point out the function of each noun in the following sentences:1.The world loves nature. subject2.Knowledge is power .subjectapposition3.We Chinese are peace-loving.subjectobjectpredicativepredicative名词性从句? 名词性从句在功能上相当于名词主语{His job is important.What he does is important.表语This is his job.This is what he does every day.{宾语{I don’t like his job.I don’t like what he does every day.同位语{I don’t know about the man, Mr. White.I don’t know about the fact that he is a teacher.什么叫名词性从句？? ? 在句子中起名词作用的句子叫名词从句在句子中起名词作用的句子叫 名词从句( (Noun ClausesNoun Clauses）） ? ? 名词从句的功能相当于名词词组名词从句的功能相当于名词词组, 复合句中能担任

高中英语名词性从句详细讲解

名词性从句：在句子中起名词作用的句子叫名词性从句(NounClauses）。 名词性从句在复合句中能担任:主语、宾语、表语、同位语、介词宾语等。 名词性从句分为：主语从句、宾语从句、表语从句和同位语从句。 一、引导名词性从句的连接词 引导名词性从句的连接词可分为三类： 1、从属连词（5个）： （1）that无词义，在从句中不做成分，在宾语从句或表语从句中that有时可以省略 （2）whether，if有词义，在从句中不做成分（whether，if均表示“是否”之意，表明从句内容的不确定性）不可以省略 （3）as if, as though（均表示“好像”，“似乎”之意）在从句中不做成分 2、连接代词（9个）：what, whatever, who, whoever, whom, whomever, whose, which, whichever，有词义，在从句中做成分，不可以省略（who, what, which在从句中做主语和宾语, 其中what指代没有范围的事物，which指代有范围的事物，表“选择哪一个”, whom做宾语, whose做定语） 3、连接副词（7个）：when, where, how, why, whenever, wherever, however有词义，在从句中做状语，不可以省略 4、that省略的情况： （1）定语从句中做宾语 （2）that引导宾语从句时 （3）that引导表语从句时 （4）主语从句中it做形式主语，that从句置于句末时 5、that不可省略的情况： （1）定语从句中做主语 （2）由that引导主语从句放句首时 （3）that引导同位语从句时 （4）宾语从句中it做形式宾语，真正的that宾语从句中that不可以省略 （5）一个句子有两个或多个并列的宾语从句时，引导第二个和以后几个句子中的that不可以省略 （6）与动词相隔的宾语从句，不可以省略 （7）that引导的宾语从句放在句首时，不可以省略 二.主语从句 1、主语从句：作句子主语的从句叫主语从句。 主语从句通常由下列词引导： 1）从属连词that，whether等； 2）连接代词what，who，which，whatever，whoever，whom等； 3)连接副词how，when，where，why等。 2、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。注：whom、who指人，what指物，whatever，whoever表示泛指意义。例如：What he wants to tell us is not clear. Who will win the match is still unknown. It is known to us how he became a writer. Where the English evening will be held has not yet been announced. 注意：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：

英语名词性从句(详细讲解)

名词性从句 第一部分：语法讲解 名词从句是指在句子中起名词作用的各种从句。根据它们在句子中所起的作用不同，名词从句可以分为主语从句、表语从句、宾语从句和同位语从句。 如：That the earth is round is a fact. I don’t know if he needs my help. I don’t know where he went. 2．主语从句 1）主语从句在句中作主语。 如：Whether he will accept the invitation is not clear.他是否会接受邀请还不清楚。 When he left is unknown.他什么时候离开还不知道。 That he will come to the discussion is certain.他来参加讨论是肯定无疑的。 2）主语从句放在句首，句子常常显得比较笨重，因此常把它移至句子末尾，而用it作形式上的主语。 如：It is strange that she did not come yesterday. 很奇怪，她昨天没有来。 It has not been announced when the plane is to take off.飞机何时起飞还没有宣布。 It is a pity that Mr.Brown can’t attend our English meeting.真可惜，布朗先生不能出席我们的英语晚会。 3）有些用“it”作形式主语的主语从句结构已形成固定的用法。 a)It is +名词+从句 如：It is a fact that…事实是…… It is common knowledge that………是常识 b)It is +形容词+that从句 如：It is necessary that…有必要…… It is likely that…有可能…… It is important that…重要的是…… c)It is +过去分词+从句 如：It is said that…据说…… It is reported that …据报道…… It is well known that…众所周知……

名词性从句详细讲解及练习题

学习必备欢迎下载 高中英语从句大全 一．名词性从句 起名词性作用的从句叫名词性从句英语当中其名词性作用的成分有主语，宾语，表语，同位语，当这些成分有一个句子来代替就构 成了名词从句，主要有主语从句，宾语从句，表语从句，同位语从句。 1.表语从句 1.定义：用作表语的从句叫做表语从句。（be动词,四“变得”：become, get,turn，go；感官动词look,, smell,sound，taste，feel；及grow, turn out，appear，keep等） 引导表语从句的词有从属连词that、whether、as though(if)； 关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever 等； 关系副词when, where, why, how, however, whenever, wherever等。 可以接表语从句的连系动词由be, look, remain, seem等。 The trouble is that we are short of money. That is why stone walls are used instead of fences around New England fields. At that time, it seemed as if I couldn't think of the right word anyhow 2、由从属连词that，whether引导的表语从句。 that在引导表语从句时无词义，在口语中，间或可以省略。而whether有词义，意为、“是否”。这时主句的主语常常是些抽象名词，如question，trouble，problem等。表语从句对主句主语进行说明、解释，使主语的内容具体化。 The trouble is that I have lost his address The question is whether they will be able to help us.问题是他们是否能帮我们。 The trouble is (that) she has lost his money. The question is whether we need more ice cream. The problem was that it was too valuable for everyday use. What she could not understand was that fewer and fewer students showed interest in her lessons. 3、由关系代词引导的表语从句。 关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever 等引导表语从句，在句中作主语、宾语、表语，关系代词不能省略。 The question is which of us should go. The problem was who could do the work.. That's what he is worrying about. That's what we should do. The problem is who we can get to replace her.问题是我们能找到谁去替换她呢。 The question is how he did it.问题是他是如何做此事的。 That was what she did this morning on reaching the attic.那就是她今晨上了阁楼 干的。 4、由关系副词引导的表语从句。 Go and get your coat.