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表语从句一、定义：在句子中起表语作用的从句叫做表语从句，位于系动词的后面。
也是名词性从句的一种。
二、表语从句的引导词引导表语从句的词有连词that, whether，连接代词和连接副词，关系代词型what，以及as if, as though, because等连词。
1. 由that引导The fact is that he doesn’t really try. 事实是他没有做真正的努力。
The trouble is that I have lost his address. 麻烦的是我把他的地址丢了。
My suggestion is that we should tell him. 我的建议是我们应该告诉他。
His sole requirement was (is) that the system work. 他唯一的要求是这个制度能起作用。
My idea is that we should start making preparations right now. 我的意见是我们马上就开始做准备工作。
It seems that he was late for the train. 看来他没搭上火车。
It seems to me that we should answer for this. 在我看来，我们似乎应该对此事负责。
It appears that she was wrong. 看来她错了。
It appears to her that he wants to teach us all he has.在她看来，他似乎要把他所会的都教给我们。
2. 由whether引导The question is whether the film is worth seeing. 问题是这部电影是否值得看。
The question remains whether they will be able to help us.问题还是他们能否帮我们。
高中英语语法表语从句练习含答案第一篇：高中英语语法表语从句练习含答案表语从句1.__________ is troubling me is _________ I don’t understand __________ he said.A.What;that;whatB.What;what;whatC.That;that;whatD.Why;that;which 2.---I drove to Zhuhai for the air show last week.---Is that __________ you had a few days off?A.whyB.whenC.whatD.where 3.Things were not _________ they seemed to be.A.whenB.whyC.thatD.where 4.If there was a reason why I achieved such a great success, maybe it is just __________ I have been so lucky.A.thatB.becauseC.in thatD.owing to the fact that 5.---Her ability has never been in doubt.---The question is _________ she is prepared to work hard.A.thatB.ifC.whereD.whether 6.The reason why she doesn’t go there was __________ a new job.A.because she gotB.because off gettingC.due to gettingD.that she got 7._________ surprised me was _______ hecouldn’t speak English.A.That;thatB.Why;thatC.Who;thatD.What;that 8.His first question was _________ T om had arrived.A.ifB.thatC.whetherD.what 9.The question is ________ can be put into practice.A.how you have learnedB.how what you have learnedC.that why you have learnedD.how that you have learned 10.A hinge joint is _________ permits the forward and backward movement of a door.A.thatB.whatC.thoseD.which 11.One reason why Hamlet is such a successful play is that _________.A.it appeals different to peopleB.different people are appealedC.it appeals to many different peopleD.people find it appealing to them very much 12.I think it is _________ you are doing too much.A.because ofB.becauseC.because thatD.due to 13.A more important question is _________ these ideas are well or ill found.A.whereB.whenC.howD.whether 14.The reason he is ill is _________ he ate too much.A.due toB.thatC.sinceD.because 15.Even the mountains here are no longer ________ they used to be.A.the sameB.whichC.thatD.what 16.That’s __________ I want to say.A.all whatB.whatC.all whichD.what that 17.That’s _____________.A.where out differences lieB.our differences lie thereC.where do our differences lieC.that where out differences lie 18.That is __________.A.where lived he thereB.where did he livedC.where he livedD.that where he lived 19.The question is ____________.A.whether is it worth doingB.that if it is worth doingC.whether it is worth doingC.if it is worth doing 20.Water will continue to be __________ it is today next in importance to oxygen.A.howB.whichC.whatD.as 21.That’s __________.A.how did I become a teacherB.how Ibecame a teacherC.how a teacher I becameD.that I became a teacher 22.They are just ___________.A.that what shall I haveB.what shall I haveC.that I shall have whatD.what I shall have 23.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 rain 24.That’s ____________.A.how she did itB.that how did she do itC.how did she do itD.what she did it 25.That is _________ we decided to put the discussion off.A.whereB.whichC.thatD.why 26.That’s ________ I lived which when I was ten years old.A.whereB.at whichC.there whereD.when 27.My suggestion is ________ we should send a few comrades to help them.A.ifB.thatC.when thatD.that where 28.With the development of computers, it is_________ man has suddenly become a millionaire of the mind.A.thatB.as ifC.whyD.as 29.It looks ________ successful international cultural communication will make the world smaller.A.thatB.as ifC.whyD.as 30.The question is __________ we shall perform the experiment.A.whichB.whereC.whoD.thatAADAD DDCBB CBDBD BACCC BDAAD ABBBB第二篇：高中英语语法表语从句详解素材表语从句表语从句定义：在一个复合句中，从句作的是主语的表语成分。
中考英语表语从句练习题20题(答案解析)1.The problem is ______ we don't have enough time to finish the work.A.thatB.whatC.whetherD.if答案解析：A。
本题考查表语从句连接词。
“The problem is that...”是常见的表语从句结构，that 在表语从句中只起连接作用，不充当任何成分，这里意思是“问题是我们没有足够的时间完成工作”。
选项B“what”在表语从句中要充当成分，本题不缺成分，所以错误。
选项C“whether”表示“是否”，意思不符。
选项D“if”一般不用于引导表语从句。
2.My concern is ______ he will be able to come on time.A.thatB.whetherC.whatD.when答案解析：B。
本题中“My concern is...”表示“我的担忧是……”，后面的从句是对担忧的内容进行解释。
“whether”在表语从句中表示“是否”，符合语境，即“我担心他是否能按时来”。
选项A“that”在表语从句中无实际意义，此处意思不合适。
选项C“what”在表语从句中充当成分，本题不缺成分，错误。
选项D“when”表示时间，与题意不符。
3.The question is ______ we should choose this plan or not.A.thatB.whetherC.whatD.how答案解析：B。
“The question is...”后面接表语从句，“whether...or not”是固定搭配，表示“是否”，即“问题是我们是否应该选择这个计划”。
选项A“that”无实际意义，不符合题意。
选项C“what”在表语从句中充当成分，本题不缺成分，错误。
选项D“how”表示方式，此处意思不对。
4.His worry is ______ he can pass the exam.A.thatB.whetherC.whatD.when答案解析：B。
中考英语表语从句高级综合用法练习题30题含答案解析1.The reason for his absence is that he was ill.The reason for his absence is because he was ill.The reason for his absence is since he was ill.The reason for his absence is for he was ill.答案解析：第一题选择“that he was ill”。
在表语从句中，“the reason...is that...”是固定用法。
“because”“since”“for”通常用来引导原因状语从句，不能引导表语从句。
2.My suggestion is that we should start early.My suggestion is because we should start early.My suggestion is since we should start early.My suggestion is for we should start early.答案解析：选择“that we should start early”。
“My suggestion is that...”是常见结构。
“because”“since”“for”不用于引导表语从句。
3.The fact is that he has made great progress.The fact is because he has made great progress.The fact is since he has made great progress.The fact is for he has made great progress.答案解析：选“that he has made great progress”。
表语从句练习与解析第一篇：表语从句练习与解析表语从句练习题第一组：1.---I drive to Zhuhai for the air show last week.---Is that __you had a few days off?(NMET1999)A.whyB.whenC.whatD where分析：选A Why引导的表语从句中，why做原因状语。
2.The question is ____it is worth visiting.A.ifB.as ifC.whetherD.how分析：选C whether引导表语从句3.This is _____it happened.A.whatB.whenC.thatD.how分析：选D how引导表语从句，说明事情的发生经过。
4.This is ____ the city lies.A.whichB.whatC.whereD.when分析：选C where引导表语从句，表示城市所处的位置。
5.He was ill.That is ____he didn’t come yesterday.A.whenB.whyC.howD.that分析：B because引导表语从句，表示原因。
6.That was ___ I was thirteen I entered the No.1 Middle School.A.becauseB.whyC.howD when分析：选A because引导表语从句，表原因。
第二组：1.The problem is ____we can master modern science and technology in a short time.A.ifB.thatC.whatD.how2.–--Doesn’t Mr.Smith live on this street?---No.This is ____Mr.Brown lives.A.whichB.whereC.howD.that3.The reason why he has been such a success is ____he never gives up.A.what B.where C.how D.that4.----What is that building?---___the garden equipment is storedA.that’s whereB.There is in whichC.the building isD.That’s the building which5.Our village is no longer ____over twenty years ago.A.what was it B.what it wasC.the village what wasD.what was the village6.___you are the first one here.A.it seems that as ifB.it seems as if thatC.it seems as ifD.It seems that as though7.My hope is ___he will become a doctor in the future.A.ifB.whetherC.thatD.what8.It was ___they were used as an advertisement for the shop.A.becauseB.whichC.whatD.if1-5 DBBAB 6-8 CCA 第三组：［考题1］ The traditional view is ____ we sleep because our brain is “programmed” to make us do so.(2007上海)A.whenB.whyC.whetherD.that［答案］ D［解析］下划线处之后是包含一个原因状语从句的表语从句，如果看不出它是充当整个句子结构的表语从句将难以把握整个句子的意思。
九年级英语表语从句练习50题(带答案)1. Her problem is ____ she doesn't know how to make friends.A. thatB. whatC. whichD. who答案解析：A。
本题考查表语从句的引导词。
在表语从句中，当从句表达的是一个客观事实、真理或者陈述一个情况时，通常用that 引导，这里“她不知道如何交朋友”是一个陈述的情况，所以用that。
选项B“what”在表语从句中充当主语、宾语或表语等成分，而此句不缺这些成分；选项C“which”表示“哪一个”，不符合语境；选项D“who”指人，这里不是在说人，所以也不正确。
2. The fact is ____ he has never been to Paris.A. thatB. ifC. whetherD. what答案解析：A。
在表语从句中，表达一个确定的事实时用that引导。
这里“他从未去过巴黎”是一个事实。
选项B“if”和选项C“whether”通常用于表示“是否”，引导表语从句时表示不确定的情况，不符合本题；选项D“what”在句中要充当成分，这里从句完整，不需要what。
3. His trouble is ____ he is too shy to speak in public.B. whyC. howD. when答案解析：A。
此句考查表语从句引导词。
从句“他太害羞以至于不敢在公众面前说话”是对“trouble”的解释说明，是一个陈述性内容，用that引导。
选项B“why”表示原因，这里不是在强调原因；选项C“how”表示方式，不符合题意；选项D“when”表示时间，也不符合句子意思。
4. My idea is ____ we should go to the park this weekend.A. thatB. whatC. whichD. where答案解析：A。
高中英语名词性从句作表语练习题40题含答案解析1.The problem is _____ we can find a solution to this difficult situation.A.whatB.thatC.whetherD.how答案解析：C。
本题考查表语从句。
“whether”引导的表语从句表示“是否”，在句中意思是问题在于我们是否能找到解决这个困境的办法。
“what”引导表语从句时在从句中充当主语、宾语等成分，本句不缺这些成分；“that”在表语从句中不充当成分且无实际意义，此处不符合语境；“how”引导表语从句表示方式，本句不是问方式。
2.His suggestion is _____ we should start early tomorrow.A.whatB.thatC.whetherD.when答案解析：B。
“that”引导的表语从句在句中不充当成分且无实际意义，他的建议是我们明天应该早点开始，符合语境。
“what”在从句中要充当成分，本句不缺；“whether”表示“是否”，此处不合适；“when”引导表语从句表示时间，本句重点不是时间。
3.The question is _____ he will come on time.A.whatB.thatC.whetherD.how答案解析：C。
“whether”引导表语从句表示“是否”，问题是他是否会准时来。
“what”在从句中要充当成分，本句不缺；“that”不符合语境；“how”表示方式，本句不是问方式。
4.My concern is _____ we have enough time to finish the task.A.whatB.thatC.whetherD.how答案解析：C。
“whether”引导表语从句表示“是否”，我担心的是我们是否有足够的时间完成任务。
“what”在从句中要充当成分，本句不缺；“that”不符合语境；“how”表示方式，本句不是问方式。
高中英语表语从句讲解及专项练习概念：表语从句是一种名词性从句，用于复合句中作为表语。
它通常放在系动词之后，结构为“主语+系动词+表语从句”。
常见的连系动词有be。
look。
remain。
seem等。
可以接表语从句的系动词包括：1.be（being,been,am,is,are,was,were)2.feel。
seem。
look。
appear。
sound。
taste。
smell3.stand。
lie。
remain。
keep。
stay4.e。
get。
grow。
turn。
go。
come。
run。
fall5.prove。
turn out例如：We are short of money。
which is causing trouble.（我们资金短缺，这造成了麻烦。
）XXX New England fields。
which is why.（在新英格兰，用石头墙而不用栅栏的原因是什么。
）At that time。
I couldn't seem to think of the right word.（当时，我似乎想不出一个恰当的字眼。
）表语从句可以由从属连词that、whether、as though、as if引导，也可以由关系代词和关系副词引导。
从属连词that在引导表语从句时无词义，而whether有词义，表示“是否”。
主句的主语通常是抽象名词，n（问题），trouble（麻烦），problem（问题），result（结果），chance （可能性），n（建议），idea（想法），reason（理由）等。
表语从句对主句主语进行说明、解释，使主语的内容更具体化。
例如：XXX is whether we should go or stay.（问题是我们应该去还是留下。
）XXX.（麻烦在于我们没有足够的时间。
）因为，好像，仿佛等连词引导的表语从句，从句中的内容是原因、方式、程度等。
例如：He was late because he missed the bus.他迟到了，因为他错过了公交车。
中考英语表语从句练习题20题含答案解析1. My mother is worried because I am not good at math. The reason is ____ I don't like doing exercises.A. thatB. whatC. whyD. when答案：A。
解析：表语从句中不缺少任何成分，用that 引导。
选项B what 在表语从句中充当主语、宾语或表语成分；选项C why 表示原因；选项D when 表示时间，均不符合题意。
2. The problem is ____ we don't have enough time to finish the project.A. thatB. whatC. whyD. when答案：A。
解析：表语从句中不缺少任何成分，用that 引导。
选项B what 在表语从句中充当主语、宾语或表语成分；选项C why 表示原因；选项D when 表示时间，均不符合题意。
3. The question is ____ we should choose A or B.A. thatB. whatC. which答案：C。
解析：这里表示在A 和B 中做出选择，用which 引导表语从句。
选项A that 在表语从句中不充当成分；选项B what 在表语从句中充当主语、宾语或表语成分；选项D when 表示时间，均不符合题意。
4. The reason why he is late is ____ he missed the bus.A. thatB. whatC. whyD. when答案：A。
解析：表语从句中不缺少任何成分，用that 引导。
选项B what 在表语从句中充当主语、宾语或表语成分；选项C why 表示原因；选项D when 表示时间，均不符合题意。
5. The fact is ____ he is a very hard-working student.A. thatB. whatC. whyD. when答案：A。
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。
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 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。
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。
★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。
例如：★Go and get your coat. It's where you left it. 去把雨衣拿来。
就在你原来放的地方。
★I had neither a raincoat nor an umbrella. That’s why I got wet through. 我们既没伞也没雨衣，这是我们淋湿的原因。
★That is how mice ruin many stores of grain every year.那就是老鼠是怎样每年损害大量粮食的。
★That is what he is worried about.那就是他所担心的。
※由连词because，as if/as though等引导的表语从句。
★It looked as if it was going to snow.看起来好像要下雪了。
★That's because we never thought of it.这是因为我们从未想过此事。
★It seems as if he didn’t know the answer.好像他不知道答案。
注意A. 表语从句一定要用陈述语序。
False: The question is when can he arrive at the hotel.Right: The question is when he can arrive at the hotel.B. 不可以用if，而用whether 连接表语从句(as if 例外）。
引导宾语从句时可以互换if/whether 位于介词后要用whether位于句首时要用whether。
引导表语从句，主语从句，同位语从句时要用whether。
False: The question is if the enemy is marching towards us.Right: The question is whether the enemy is marching towards us.Right: It looked as if he had understood this question.C.不像宾语从句，在有表语从句的复合句中，主句时态和从句时态可以不一致。
Right: The question is who will travel with me to Beijing tomorrow.Right: The question is why he cried yesterday.D. that在表语从句中不可以省掉。
基本用法表语从句只能置于主句之后，而主句的动词只能是联系动词。
名词性从句在be等系动词后作表语时被称为表语从句例如：★The problem is how we can get the things we need.问题是我们怎样能弄到我们需要的东西。
(how 在表语从句中充当方式状语)★The scissors are not what I need. 这把剪刀不是我所需要的。
(what 在表语从句中充当宾语)★What I told him was that I would find him a good play. 我告诉他的是我会给他找个好剧本。
(what在主语从句中作直接宾语，that作为表语从句的引导词在该表语从句中不充当句子成分，不能省略)★That is what I want to tell you.那就是我想要对你讲的。
(what在表语从句中充当直接宾语)★That is why she failed to pass the exam. 那就是她考试不及格的原因。
(why 在表语从句中充当原因状语)表语测试1. The question is ________ we will have our sports meet next week.A. thatB. ifC. whenD. whether2．The reason why he failed is ________he was too careless.A. becauseB. thatC. forD. because of3. Go and get your coat. It’ s ________you left itA. whereB. thereC. there whereD. where there4．The problem is _________to take the place of TedA. who can we getB. what we can getC. who we can getD. that we can get5. What I want to know is ______ he likes the gift given by us.A. thatB. ifC. whetherD.不填6. The reason is_________ I missed the bus.A. thatB. whenC. whyD. what7. That is __ ___ we were late last time.A. thatB. whenC. whyD. what8. She looked _________ she were ten years younger.A. thatB. likeC. asD. as though9.—I fell sick!--I think it is _______ you are doing too much.A. whyB. whenC. whatD. because10. The reason why he hasn’t come is ___________.A. because his mother is illB. because of his mother’s being illC. that his mother is illD. for his mother is ill11. —He was born here.-- That is _______ he likes the place so much.A. thatB. whatC. whyD. how12.That is ______ Lu Xun once lived.A. whatB. whereC. thatD. why 13．_______your father wants to know is________ getting on with your studies.A. What; how are youB. That；how you areC. How；that you areD. What；how you are14. The trouble is__________ we are short of tools.A. whatB. thatC. howD. why that15. America was __________was first called “India” by Columbus.A. whatB. whereC. the placeD. there where16. China is becoming stronger and stronger. It is no longer_________ .A. what it used to beB. what it was used to beingC. what it used to beingD. what it was used to be17. ________he really means is ________he disagrees with us.A. What … thatB. That … whatC. What … whatD. That … what18. The energy is ________ makes the cells able to do their work.A. thatB. whichC. whatD. such19 —I drove to Zhuhai for the air show last week.—Is that_____ you had a few days off？A. why B .what C. when D. where20 .I had neither a raincoat nor an umbrella ____I got wet through.A. It’s the reasonB. That’s whyC. There’s whyD. It’s how21. See the flags on top of the building? That was ______ we did this morning.A. whenB. whichC. whereD. what22. --- Are you still thinking about yesterday’s game?---Oh, that’s _____.A. what makes me feel excitedB. whatever I feel excited aboutC. how I feel about itD. when I feel excited23. What surprised me was not what he said but ______ he said it.A. the wayB. in the way thatC. in the wayD. the way which答案1~5: DBACC6~10 :ACDDC 11~15:CBDBA 16~20: AACAB 21~23: DAA。
