表语从句用法
表语从用法
1.定义：用作表语的从句叫做表语从句
2.引导表语的从句的关联词的种类
（1）从属连词that. The trouble is that I have lost his address.
The reason was that he was late for school.
(2)从属连词whether, as, as if
He looked just as he had lookedten years before.
The question is whether they will be able to help us.
注：从属连词if一般不用来引导表语从句，但as if却可引导表语从句。All this was over twenty years ago, but it’s as if it was only yesterday. The key is whether we can solve the problem.
It looked as if it was going to rain.
注：能跟表语从句的谓语动词一般为系动词be, seem, look, sound等He looked just as he had looked ten years before.
It sounds as if someone is knocking at the door.
(3) 连接代词who, whom, whose, what, which, whoever, whatever, whichever 在表语从句中做主语、宾语等。
The problem is who we can get to replace her.
That was what she did this morning on reaching the agreement.
My question is who left.
(4) 连接副词where, when, how, why
What I wonder is when he left. This is where they once lived.
That is why he didn’t come here.
The question is how he did it.
(5) 连词because 可引导表语从句。注意：because 可引导表语从句，但与之同义的since, as, for等不用于引导表语从句。
I think it is because you are doing too much.
It’s just because he doesn’t know her.
That’s because he didn’t understand me.(That’s because…强调原因) That's why he got angry with me.(That’s why…强调结果)
注意：在一些表示“建议，劝说，命令”的名词后面的表语从句中，谓语动词用虚拟语气. Should+动词原形表示，should可省略。
My suggestion is that we (should) start early tomorrow.
一坚持（insisit）二命令（command, order）三建议（suggest, advise, propose）四要求（desire, demand, require, request）
四．注意事项（重点看）
1. 表语从句要用陈述语序。
That is where the famous scientist was born.
This is why she is so happy today.
2.that和what在引导的表语从句
that本身没有词义，在句中只起连接作用，不充当句子成分；what 则表示“所…的（人或事）”，在表语从句中充当主语或宾语等。That facet is that more than seventy percent of the earth’s surface is covered by water.
What he told you was what had been discussed at the meeting.
3.if与whether均意为“是否”引导的表语从句是，只能用whether，
不能用if。The question is whether we can finish our work by tomorrow evening.
4.语气
（1）主语为advice, order, idea, notion, proposal, suggestion, request等一些表示“建议，劝说，命令”的名词，之后的表语从句中，
谓语动词用虚拟语气。Should+动词原形表示，should可省略。My suggestion is that we (should) start early tomorrow.
Our only request is that this should be settled as soon as possible.
(2) as if / though引导的表语从句时，从句谓语多用虚拟语气。这是因为从句中的情况与事实不相符。
具体来说，如果从句表示与现在事实相反，谓语动词用一般过去式；如果从句表示与过去事实相反，谓语动词“had+done”,如果从句表示将来的可能性不大，用would(might, could)+动词原形。
Li Lei is now in a new jacket he looks as if he were an American boy. The girl is giving us a vivid description of the moon.
It seems as if she had been to the moon many times.
但是，如果as if, as though引导的表语从句所表示的与事实相符，从句则用陈述语气。
The clouds are gathering. It looks as if it is going to rain.
5. 时态不像宾语从句，在有表语从句的复合句中，主语时态和从
句时态可以不一致。
The question is who will travel with me to Beijing tomorrow.
The question is why he cried yesterday.
系动词分类：
一．根据系动词后所跟结构，我们可以把英语系动词分为两大类：完全系动词（其后只能跟表语动词，如be, seem）和半
系动词（其后既跟表语作系动词用法，也可以跟宾语或状语
作实义动词用，如look）
1)He looked sadly at the boy. (看着，实义动词用法)
He looks a clever boy. (看起来，系动词用法)
2）He looks at a clever boy.(看着，实义动词用法)
在英语中，某一动词是多义词，既有实义动词用法，又有系动词用法。二．根据系动词的意义，我们把英语系动词分为四类：
A．五大感官系动词B. 状态系动词C. 动态系动词D.双谓语系动词1.look “看起来像是“，后接adj,n.分词，介词短语，不定式等。The girl bit her lips and looked thoughtful.
2.Smell “听起来”，后接adj,分词。The flower smell sweet.
3.sound “听起来“，后接adj,分词。The music sounds sweet.
4.taste “尝起来“，后接adj,分词。The apples taste very good.
5.feel ①“摸起来，给….感觉”；②“觉得”，后接adj, p.p
You will feel better after a night’s sleep.
B.状态系动词：
1. be, “是“，属完全系动词。I am a student.
2. seem, “似乎，好像“，完全系动词。They seem quite happy.
3.appear,“显得，看起来好像”，半系动词。It appeared (to be) a true story.
4. keep,“保持…的状”，半系动词，后接adj或介词短语。
You’d better go to bed and keep warm.
5.remain,“仍是”，半系动词。I remained silent.
6.stay “保持(某种状态)”,半系动词,后接adj,过去分词。
The window stayed open all the night.
7.prove“证明是”，半系动词，后接adj,n
The treatment proved to be sucessful.
C. 动态系动词：都属于半系动词，描述状态变化过程。
1.get “变成，变得……起来”,后接形容那个词，分词，介词短语。The days are getting longer and longer.
2. fall“进入（某种状态），成为“，后接以下形容词：asleep,lame, silent, ill, sick, flat. The old men, unable to express himself, fell silent.
My father fell ill and died.
3. grow “渐渐变得…..起来，长得” It’s growing warm.
4. turn“转变成（新的与原来完全不同的色彩或性质），变质（色）”。Maple trees turn red in autumn.
It was cloudy this morning, but fortunately it has turned fien.
5.go, “变成（某种坏的状态）”
The telephone has gone dead. The material has gone a funny colour.
Go 之后常接adj.还有：bad,blind, wild, wrong, sour, hard, hungry, mad, red, with, anger, white, pale, blue, grey
6.become”变成，成为（好坏均可的情况）”
I became interested in drawing. He became angry with me.
They became good friends.
https://www.wendangku.net/doc/cb9799537.html,e, “变成为（已知的状态），证实为”，后接形容词或前缀un-
的过去分词作表语，表示状态或情况的变化。
His wish to become a pilot has come true.
后面接的形容词还有apart,dear,natural,open,short, right,unstuck, untied.
8.run “变成”，后接adj. The price ran high.
9.make, “达到某种状态，后接形容词，如：sure, certain, merry, bold,
free. We must make certain of facts.
D．双谓语系动词此类系动词既有系动词功能，后接表语，又保留原实义动词本身的含义。
The sun rose red. She stopped and stood quite still.
The snow lay thick on the ground. He married young.
Lei Feng died young. He continued silent.
表语从句练习
1. The question is ________ we will have our sports meet next week.
A. that
B. if
C. when
D. whether
2．The reason why he failed is ________he was too careless.
A. because
B. that
C. for
D. because of
3. Go and get your coat. It’ s ________you left it
A. where
B. there
C. there where
D. where there
4．The problem is _________to take the place of Ted
A. who can we get
B. what we can get
C. who we can get
D. that we can get
5. What I want to know is ______ he likes the gift given by us.
A. that
B. if
C. whether
D.不填
6. The reason is_________I missed the bus.
A. that
B. when
C. why
D. what
7. That is __ ___ we were late last time.
A. that
B. when
C. why
D. what
8. She looked _________ she were ten years younger.
A. that
B. like
C. as
D. as though
9.—I fell sick! --I think it is _______ you are doing too much.
A. why
B. when
C. what
D. because
10. The reason why he hasn’t come is ___________.
A. because his mother is ill
B. because of his mother’s being ill
C. that his mother is ill
D. for his mother is ill
11. —He was born here. -- That is _______ he likes the place so much.
A. that
B. what
C. why
D. how
12.That is ______ Lu Xun once lived. A. what B. where C. that D. why
that/what的区别
1．_______your father wants to know is________ getting on with your studies.
A. What; how are you
B. That；how you are
C. How；that you are
D. What；how you are
2. The trouble is__________we are short of tools.
A. what
B. that
C. how
D. why that
3. America was __________was first called “India” by Columbus.
A. what
B. where
C. the place
D. there where
4. China is becoming stronger and stronger. It is no longer_________ .
A. what it used to be
B. what it was used to being
C. what it used to being
D. what it was used to be
5. ________he really means is ________he disagrees with us.
A. What … that
B. That … what
C. What … what
D. That … what
6. The energy is ________ makes the cells able to do their work.
A. that
B. which
C. what
D. such
高考练习 1 —I drove to Zhuhai for the air show last week .
—Is that_____ you had a few days off？（NMET1999）
A. why B .what C. when D. where
2 .I had neither a raincoat nor an umbrella ____I got wet through. （1998 上海）
A. It’s the reason
B. That’s why
C. There’s why
D. It’s how
3. See the flags on top of the building? That was ______ we did this morning. （06 全国）A. when B. which C. where D. what
4. --- Are you still thinking about yesterday’s game?(2003北京春) ---Oh, that’s _____.
A. what makes me feel excited
B. whatever I feel excited about
C. how I feel about it
D. when I feel excited
5. What surprised me was not what he said but ______ he said it.（2004湖北）A. the way B. in the way that C. in the way D. the way which
答案DBACCACDDCCB that/what的区别DBAAA高考练习ABD A
表语从句讲解及专项练习
15级计算机班英语 表语从句讲解 概念：表语从句是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+系动词+表语从句” 可以接表语从句的连系动词有be, look, remai n, seem 等。 ★The trouble is that we are short of mon ey. 困难是我们资金短缺。 ★ That is why stone walls are used in stead of fen ces around NewE ngla nd fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因。 ★At that time, it seemedas if I could n't think of the right word an yhow. 当时,我似乎怎么也想不出一个恰当的字眼来。 引导表语从句的词： 从属连词that、whether、as though、as if （That引导表语从句时，在口语中，间或可以省略。） 关系代词who, what, which, whom,whose, whatever, whoever, whomever, whichever 等； 关系畐【J词when, where, why, how, however, whenever, wherever 等。 探由从属连词that , whether引导的表语从句。 that 在引导表语从句时无词义，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（问题），trouble（麻烦），problem（问题），result（结果），chance（可能性），suggestion（建议），idea（想法），reason（理由）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。 例如： ★The trouble is （that） she has lost his mon ey. 麻烦的事是他丢了钱。 ★The questi on is whether we n eed more ice cream. 问题是我们是否还需要 一些冰淇淋。 ★The problem was that it was too valuable for everyday use. 问题是它作为日常之用太贵重了。 ★What she couldn ' t understand was that fewer and fewer students showed in terest in her lesso ns. 我们不能理解越来越少的学生对他的课不感兴趣。 探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。例如： ★The questi on is which of us should go. 问题是我们哪一个应该去。 ★The problem was who could do the work. 问题是谁能做这项工作。 ★That's what he is worryi ng about. 那就是他在担心的事。 ★That's what we should do. 那是我们应该做的。 ※由关系副词引导的表语从句。 关系副词when, where, how, why 除在句子起连接作用外，在从句中还充 当时间，地点，方式或原因状语，本身具有词义。
表语从句讲解及练习
表语从句 1．定义：用作表语的从句叫做表语从句。 2．引导表语从句的关联词的种类： (1)从属连词that。在从句中不做成分。如：The trouble is that I have lost his address.麻烦是 我把他的地址丢了。The reason was that he was late for school. (2)从属连词whether,as,as if。如： (3)looked just as he had looked ten years before.他看起来还与十年前一样。 (4)question is whether they will be able to help us. 问题是他们是否能帮我们。 (5)注：从属连词if一般不用来引导表语从句，但as if却可引导表语从句，如： (6)All this was over twenty years ago, but it’s as if it was only yesterday. (7)这都是20多年前的事了，但宛如昨天一样。 The key is whether we can solve the problem.注：能跟表语从句的谓语动词一般为系动词be, seem, look，sound等。如： (8)He looked just as he had looked ten years before. 他看起来还与十年前一样。 It sounds as if someone is knocking at the door. 连接代词who, whom, whose, what, which, whoever, whatever, whichever 在表语从句中做主语、宾语等。如：The problem is who we can get to replace her. 问题是我们能找到谁去替换她呢。 (9)That was what she did this morning on reaching the attic. 那就是她今晨上了阁楼干的。 The problem is who we can get to replace her. (10)我想问的是谁离开了。My question is who left. 连接副词where, when, how, why。 What I wonder is when he left. 我想知道他是何时离开的。 This is where they once lived. 这就是他们曾经住过的地方。 That is why he didn't come here. The question is how he did it. (11)连词because可引导表语从句。如： (12)I think it is because you are doing too much. 我想这是因为你做得太多。 It's just because he doesn't know her. (13)T hat's because he didn't understand me. 那是因为他没有理解我.(That's because...强调原因) (14)T hat's why he got angry with me.那正是他对我生气的原因。(That's why...强调结果) (15)在一些表示“建议、劝说、命令”的名词后面的表语从句中，谓语动词用虚拟语气。should+动词原形表示，should可省略。如： (16)M y suggestion is that we (should) start early tomorrow. 我的建议是我们明天一早就出发。
主语从句和表语从句
主语从句和表语从句 知识点 1.名词性从句引导词的选择 选择原则“缺什么，补什么，什么不缺，用that” “什么不缺，用that”的意思是：如果从句中不缺任何成分，而且句意完整时，就用that来引导主语从句或表语从句以及其他的名词性从句。 2.whether 意为“是否”，引导的主语从句放在句首，不能用if 代替；但当用 it 作形式主语时，whether引导的主语从句放在句中或句末，此时可换用if. It is doubtful whether there’ll be any seats left.说不上是否还有座位了。 3.that 引导主语从句时，只起连接作用，不作任何成分，没有实际意义。在句 首时不可省略。What引导主语从句时既要起连接作用，又要在从句中作主语或宾语，在任何情况下都不能省略，它具有具体意义，表示“什么，所…… 的（事、物、话）”，相当于all that/ everything that. Which引导主语从句也作成分，它表示选择的意义，常译为“那个”。如：That he survived in the earthquake is a miracle. 他在地震中幸免于难，这是个奇迹。 4.关系代词what, which, who引导主语、表语从句时含有疑问意义，而whatever, whichever, whoever在引导名词性从句时，往往比what, which, who更强调，不表示疑问意义。而且whatever=all that/everything that; whichever=anything that; whoever=anyone who.另外，whatever=no matter what时引导状语从句。如：Whatever is worth doing at all is worth doing well.凡是值得做的事情都值得好好地做。 I语法填空。使用正确连接词补全下列句子。 1.They lost their way in the forest and ______made matters worse was ______ night began to fall. 2.______ drives after drinking should be punished. 3.It is said ______ Peter will have a chance to travel abroad next month. 4.______ we fear when traveling in summer is the sudden change of weather. 5.______ we will go camping tomorrow is up to you. 6.I read about it in some book or other, does it matter ______ it was? 7.______ of you comes in will be given a prize.
表语从句讲解及专项练习、答案
表语从句讲解及专项练习 概念：表语从句是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+系动词+表语从句” 可以接表语从句的连系动词有be, look, remain, seem等。 ★ The trouble is that we are short of money.困难是我们资金短缺。 ★ That is why stone walls are used instead of fences around New England fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因。 ★ At that time, it seemed as if I couldn't think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来。 引导表语从句的词： 从属连词that、whether、as though、as if（That引导表语从句时，在口语中，间或可以省略。） 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。 ※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，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(问题)，trouble(麻烦)，problem(问题)，result(结果)，chance(可能性)，suggestion(建议)，idea(想法)，reason(理由)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。 例如： ★ The trouble is (that) she has lost his money. 麻烦的事是他丢了钱。 ★The question is whether we need more ice cream.问题是我们是否还需要一些冰淇淋。 ★The problem was that it was too valuable for everyday use.问题是它作为日常之用太贵重了。 ★What she couldn’t understand w as that fewer and fewer students showed interest in her lessons. 我们不能理解越来越少的学生对他的课不感兴趣。 ※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。 例如： ★The question is which of us should go.问题是我们哪一个应该去。 ★The problem was who could do the work.问题是谁能做这项工作。 ★That's what he is worrying about.那就是他在担心的事。
表语从句练习题及答案
表语从句练习题及答案 精品文档 表语从句练习题及答案 (The reason why he failed is A. because B. that C. for D. because of . Go and get your coat. It it A. where B. there C. there where D. where there A. who can we get B. what we can get C. who we can get D. that we can get A. that B. when C. why D. what A. that B. when C. why D. what she were ten years younger. A. that B. like C. as D. as though —I fell sick! A. why B. when C. what D. because 1 / 11 he was too careless. you left The problem is to take the place of Ted . What I want to know is he likes the gift given by us. A. that B. ifC. whether D. 不填 The reason is I missed the bus. . That is we were late last time. She looked --I think it is you are doing too much.
表语从句详解
表语从句详解 一、概念 表语从句是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+系动词+表语从句可以接表语从句的连系动词有be, look, remain, seem等. 可以接表语从句的系动词有: 1.be(being,been,am,is,are,was,were) 2. feel , seem , look, appear ,sound, taste , smell 3. stand , lie , remain ,keep, stay 4. become ,get , grow , turn ,go ,come, run, fall 5. prove, turn out The trouble is that we are short of money.困难是我们资金短缺. That is why stone walls are used instead of fences around New England fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因. At that time, it seemed as if I couldn't think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来. 引导表语从句的词: 从属连词that、whether、as though、as if(That引导表语从句时,在口语中,间或可以省略.) 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. 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,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(问题), trouble(麻烦),problem(问 题),result(结果),chance(可能性),suggestion(建议),idea(想法),reason(理由)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.例如: The trouble is (that) she has lost his money. 麻烦的事是他丢了钱. The question is whether we need more ice cream.问题是我们是否还需要 一些冰淇淋.
英语从句讲解
Simple sentence Compound sentence Complex sentence 从句：名词性从句（主语从句，宾语从句，表语从句，同位语从句） 形容词性从句(定语从句) 副词性从句（状语从句） 英语中六大从句用法总结 在句子中起名词作用的各种从句，统称为名词性从句 1.主语从句subjective clause 一般由what, who, which, why, how, when, which, whether…or…等引导，如果从句较长，谓语又较短，可用it作形式主语，而将从句放在句末。常见的句型有： It is self-evident that… 很明显的是 It goes without saying that… 不用说 It is asserted that．．．有人主张…… It is believed that．．．据信…… It is generally considered that．．．人们普遍认为…… It is hoped that．．．人们希望…… It is reported that．．．据报道…… It is said that．．．据说…… It is supposed that．．．据推测．．．
It is well-known that．．．众所周知…… It must be admitted that．．．必须承认…… It cannot be denie d that… 不可否认…… It must be pointed out that．．．需指出的是…… It was told that．．．据传…… It will be said that．．．有人会说…… It follows that… 由此可见 It is inappropriate that… ……是不合适的 2)what引导的主语从句表示“...的东西时”，一般不用it作形式主语。 What we lack is experience. 3)what, who, when, why, whether等词含有各自的疑问意义，但它们引导的主语从句，都用陈述语序。 How the plan is to be carried out should be discussed again. I did know why I felt like crying. 2.宾语从句objective clause 1）宾语从句可位于及物动词、介词和某些形容词后。连词that常可省略。介词后一般接疑问词引导的宾语从句。in
表语从句讲解及专项练习、答案
、 表语从句讲解及专项练习 概念：表语从句是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+系动词+表语从句” 可以接表语从句的连系动词有be, look, remain, seem等。 " ★ The trouble is that we are short of money.困难是我们资金短缺。 ★ That is why stone walls are used instead of fences around New England fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因。 ★ At that time, it seemed as if I couldn't think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来。 引导表语从句的词： ' 从属连词that、whether、as though、 as if（That引导表语从句时，在口语中，间或可以省略。） 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。 ※ 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，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(问题)，trouble(麻烦)，problem(问题)，result(结果)，chance(可能性)，suggestion(建议)，idea(想法)，reason(理由)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。 : 例如： ★ The trouble is (that) she has lost his money. 麻烦的事是他丢了钱。 ★ The question is whether we need more ice cream.问题是我们是否还需要一些冰淇淋。 ★ The problem was that it was too valuable for everyday use.问题是它作为日常之用太贵重了。 ★ What she couldn’t unde rstand was that fewer and fewer students showed interest in her lessons. 我们不能理解越来越少的学生对他的课不感兴趣。 ※ 由关系代词引导的表语从句。
表语从句例句
1.定义 2. 引导表语的从句的关联词的种类 （1）从属连词that. The trouble is that I have lost his address. 原因是他上学迟到了。________________________________ (2)从属连词whether, as, as if He looked just as he had looked ten years before. The question is whether they will be able to help us. 注：从属连词if一般可不可以用来引导表语从句_____，as if呢____ All this was over twenty years ago, but it’s as if it was only yesterday. 关键是我们能否解决问题。________________________________ 看起来要下雨。__________________________________________ 注：能跟表语从句的谓语动词一般为系动词____ ____ _____ _____等 听起来好像有人在敲门。_____________________________________ (3) 连接代词____ _____ _____ ＿＿＿＿＿＿＿＿＿＿＿在表语从句中做主语、宾语等。 The problem is who we can get to replace her. That was what she did this morning on reaching the agreement.我的问题是谁离开了。＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ (4) 连接副词＿＿＿＿＿＿＿＿＿＿＿＿ What I wonder is when he left. This is where they once lived.
表语从句讲解及专项练习、答案
表语从句讲解及专项练习 概念:表语从句是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+系动词+表语从句” 可以接表语从句的连系动词有be, look, remain, seem等。 ★ The trouble is that we are short of money.困难是我们资金短缺。 ★ That is why stone walls are used instead of fences around New England fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因。 ★ At that time, it seemed as if I couldn't think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来。 引导表语从句的词: 从属连词that、whether、as though、as if(That引导表语从句时,在口语中,间或可以省略。) 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。 ※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,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(问题),trouble(麻烦),problem(问 题),result(结果),chance(可能性), suggestion(建议),idea(想法),reason(理由)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。
表语从句与主语从句
表语从句与主语从句 表语从句和主语从句以及宾语从句都要用陈述语序。 Ⅰ.表语从句 在复合句中，位于系动词之后作表语的从句称为表语从句。它位于主句的系动词之后， 最为重要的是我们应该为牛找到足够的水。 The doubt is who has taken away the valuable vase. （主语，人） 疑点是谁拿走了那只贵重的花瓶。 My topic today is what most scientists are researching.（宾语，物，没有选择范围） 我今天的话题就是大多数科学家正在研究的课题。 The problem is which school will be chosen.(which在从句中作定语) 问题是哪一所学校将被选中。 All this was over twenty years ago，but it’s as if it was only yesterday. 这都是20多年前的事了，但宛如昨天一样。 表语从句中应注意的问题 (1)because，why引导的表语从句。 because引导表语从句时，表示“因为”，why引导表语从句时，表示“……的原因”，相当于the reason why。 That’s because he didn’t understand me. (That’s because...强调原因) 那是因为他不理解我。 That’s why he got angry with me. (That’s why...强调结果) 那正是他对我生气的原因。 (2)what引导的主语从句表示结果或名词reason作主语时，后面的表语从句表示原因时要用that引导，不宜用because。 What cost him his life was that he was too careless. 使他丧命的原因是他太粗心了。 The reason why I was sad/for my being sad was that he didn’t understand me. 我难过的原因是他不理解我。 (3)使用虚拟语气的表语从句 在表示建议、劝告、命令含义的名词后的表语从句中，谓语动词需用“should＋动词原形”表示，should可省略。常见的词有：advice，suggestion，order，proposal，plan，idea，request，requirement等。 My suggestion is that we (should) have a discussion about this matter instead of just laying it aside. 我的建议是我们应当讨论一下这个问题，而不应该把它放在一边。 （4）as if/as though引导的表语从句常置于系动词look，seem，sound，be，become等后面，常用虚拟语气，即形式常用过去式的某种时态。
高中英语语法表语从句详解
高中英语表语从句详解 1、概述 用作表语的从句叫作表语从句，它位于主句中的连系动词之后。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。That引导表语从句时，在口语中，间或可以省略。 The trouble is that we are short of money.困难是我们资金短缺。 That is why stone walls are used instead of fences around New England fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因。 At that time, it seemed as if I couldn't think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来。 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，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(问题)，trouble(麻烦)，problem(问题)，result(结果)，chance(可能性)，suggestion(建议)，idea(想法)，reason(理由)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) she has lost his money. 麻烦的事是他丢了钱。 The question is whether we need more ice cream.问题是我们是否还需要一些冰淇淋。
表语从句讲解
一．定义： 表语从句就是用一个句子作为表语。位于系动词之后，说明主语身份，特征，属性或状态。比较： The problem is puzzling. 主语连系动词形容词作表语 The problem is when we can get a pay rise. 主语连系动词一个句子作表语---表语从句 二、系动词的分类（了解哪些词为系动词） 系动词有表示状态的；有表示状态变化的。 表示状态的有： 1）be, seem ,appear 等。 2）look ,sound ,feel ,taste ,smell 等，由感官动词变化而来。意思为“看（听、摸、尝、闻）起来”。 Mr. Li looks quite young. 李先生看起来很年轻。 3）stand ,keep ,prove ,remain 等由不及物动词转化而来。 The machine has been standing idle. 这台机器一直闲着不用。 2.表示状态变化的： become ,get ,grow, fall, turn等 He has fallen ill. 他已经病倒了。 三连接表语从句与主句的关系词主要有三类：
1. 从属连词：that（无有词义）, whether（是否,if （是否） 2. 关系代词：who（谁，主格）, whom（谁，宾格）,whose谁的，所有格）, what（什么）,which（哪个，哪些） 3. 关系副词：when（什么时候）where（什么地方）why（为什么）, how（怎样）例如： The fact is that we have lost the game. 事实是我们已经输了这场比赛。 That’s just what I want. 这正是我想要的。 This is where our problem lies. 这就是我们的问题所在。 That is why he didn’t come to the meeting.那就是他为什么不到会的原因。 It looks as if it is going to rain. 看上去天要下雨了。 It is because you eat too much那是因为你吃得太多了。 The reason why he was late was that he missed the train by one minute this morning （当主语是reason时，表语从句要用that引导而不是because） 另外，与其他名词从句有所不同的是as, as if/though, because也可用来引导表语从句.如： He looked just as he had looked ten years before.他看起来还与十年前一样。 She seems as if she had done a great thing.她看起来好像做了一件大事。 It is because you eat too much.那是因为你吃得太多了。 【注意】because可引导表语从句，但与之同义的since, as, for等也不用于引导表语从句。
表语从句详解教学内容
表语从句详解
表语从句详解 一、概念 表语从句是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+系动词+表语从句可以接表语从句的连系动词有be, look, remain, seem等. 可以接表语从句的系动词有： 1.be（being,been,am,is,are,was,were) 2. feel , seem , look, appear ,sound, taste , smell 3. stand , lie , remain ,keep, stay 4. become ,get , grow , turn ,go ,come, run, fall 5. prove, turn out The trouble is that we are short of money.困难是我们资金短缺. That is why stone walls are used instead of fences around New England fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因. At that time, it seemed as if I couldn't think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来. 引导表语从句的词： 从属连词that、whether、as though、 as if（That引导表语从句时，在口语中，间或可以省略.） 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. 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，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(问题)，trouble(麻烦)，problem(问题)，result(结果)，chance(可能性)，suggestion(建议)，idea(想法)，reason(理由)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.例如： The trouble is (that) she has lost his money. 麻烦的事是他丢了钱. The question is whether we need more ice cream.问题是我们是否还需要一些冰淇淋. The problem was that it was too valuable for everyday use.问题是它作为日常之用太贵重了. What she couldn’t understand was that fewer and fewer students showed interest in her lessons. 我们不能理解越来越少的学生对他的课不感兴趣. 由关系代词引导的表语从句.
宾语从句和表语从句详解与练习
宾语从句和表语从句详解 名词性从句指的是在整个句子中起名词作用的从句。这种从句可以做主语、宾语、表语、同位语等，所以这类从句包括主语从句、宾语从句、表语从句和同位语从句。各种名词性从句的结构都是相同的，即由if，whether，that和各种疑问词充当连接词，后接陈述语序。 例如：What they are doing seems very important．（主语从句） 他们在做的事似乎很重要。 My hope is that he will be the best student in the class．（表语从句） 我的愿望是他能够成为班上最好的学生。 Nobody knows who he is．（宾语从句） 大家都不知道他是谁。 I don't like the idea that money is everything．（同位语从句） 我不喜欢金钱就是一切这一观点。 引导名词性从句的连接词中，除了that，if和whether之外其它的都作从句中的一个成分。 【宾语从句】 在句子中作动词或介词宾语的从句叫做宾语从句。引导宾语从句的词有连词that，whether，if；连接代词who，which，what以及其强调形式whoever，whichever，whatever；连接副词when，where，why，how等。 例如：Do you know where the Greens live I have no interest in how rich he is． 宾语从句主要用于下面五种结构： 1．由that引导的宾语从句（that 引导宾语从句时，特别是在口语中可省略） The boy believes that he will travel through space to other planets． that引导的宾语从句多用于say，think，insist，wish，hope，demand，imagine，wonder，know，suppose，see，believe，agree，admit，deny，expect，explain，order，command，feel，dream，suggest，hear，mean，notice，prefer，request，require，propose，declare，report等后。 当主句谓语动词是think，believe，suppose，expect 等词，而宾语从句的意思是否定时，常把否定转移至主句表示。例如：I don’t think it is right for him to treat you like that．（＝I think it is not right for him …．） that不能省略的情况： （1）当句中的动词后接多于两个由that引导的宾语从句时，第一个that可省，但后面的that不可省。如： He said （that）you were too young to understand the matter and that he was asked not to tell you． （2）当主句的谓语动词与that宾语从句之间有插入语时，that一般不可省。如： Just then I noticed，for the first time，that our master was wearing his fine green coat and his black silk cap． （3）当that从句是双宾语中的直接宾语时，that不可省。如： I can’t tell him that his mother died． 2．由特殊疑问词引导的宾语从句 这样的宾语从句实际上是由特殊疑问句变化而来的，宾语从句要用陈述句语序。用于这种结构的动词常常是：see，say，tell，ask，answer，know，decide，show，find out，imagine，suggest，doubt，wonder，discover，understand，inform，advise等。
表语从句
语法表语从句 一、课堂导入 1. That is why stone walls are used instead of fences around New England fields. 2.That fact is that more than seventy percent of the earth’s surface is covered by water. 3. This is what I want. 4. The reason why he was late is that his bike broke down. 5. Next Sunday is when we shall meet. 6. This is why I am late. 7. My problem is which computer to choose. 知识点1 ：表语从句的概念 概念：表语从句就是用一个句子作为表语。说明主语是什么或者怎么样，由名词、形容词或相当于名词或 形容词的词或短语充当，和连系动词一起构成谓语。 如：The problem is puzzling. 这问题令人困惑 主语连系动词形容词作表语 The problem is when we can get a pay rise. 问题是什么时候我们可以得到加薪. 主语连系动词一个句子作表语（表语从句） 注意：“主语+系动词+表语从句”。 常见的连系动词有：be动词(am, is, are, was, were)、表示持续的系动词（keep, remain, stay）、感官动词feel(摸起来，感觉) , smell(闻起来) , sound(听起来) , taste(尝起来，吃起来) 等、表示变化的系动词（become, grow, turn, fall, get, go,）、表终止的系动词prove, turn out(结果是，证明是)、seem, appear（看起来...） 表语从句都用陈述句语序： E.g.: The question is when he can arrive at the hotel 这个问题是他什么时候能到达宾馆。 That is what I want to tell you. 那就是我想要对你讲的。 知识点2：表语从句的引导词 引导表语从句的连接词分为三类： （1）从属连词：that, whether, as if.(从属连词在从句中不但当成分，只起连接作用，that无词义) （2）连接代词：Who, whoever, whom, whomever, what, whatever, which, whichever, whose. (连接代词在从句中充当主、宾、表、定的成分，起连接作用，有词义) （3）连接副词：when, where, why, how等。