表语从句 课件
Predicative Clauses
表语从句
一、什么是表语从句
先看两个句子：
The question is difficult.
（表语）
The question is who will do it.
（表语从句）
★定义：
表语从句在复合句中作主句的表语。表语从句和主语指同一内容，它对主语进行解释、说明，使主语的内容具体化。
★结构：
主语+系动词+表语从句
↓↓
（引导词+ 简单句）
★常见的可以接表语从句的系动词有：
be, look, remain, seem等。
★从句引导词：
连接词：that / whether /as if /as though
连接代词：who / whom / whose / which / what
连接副词：when / where / why / how / because
EXAMPLES:
主语+ 系动词+ 引导词+ 简单句
↓↓↓↓
1. The question is whether we can rely on him.
2. He looked as if he was going to cry.
3. That is why I was late.
二、引导词的用法
That:
（1）that在表语从句中既不充当成分,又没有意义。
The fact is that he hasn’t yet recovered from illness.
The reason why he has to go is that his mother is ill in bed.
（2）在表“建议，命令，要求”的名词, suggestion, request, proposal 等后面的表语从句中，谓语动词用“should + 动词原形”，should可省略
My suggestion is that we (should) start early tomorrow.
Whether:
whether在表语从句中表“是否”，但不充当句子的成分。If不能引导表语从句.如:
What the doctor really doubts is whethe r my mother will recover from the serious disease soon.
The question is whether it is worth doing.
What:
what 在表语从句中充当主语、宾语或表语，表示什么，什么样子，或所…的（人或事）。
1. The question is what caused the accident.
2. That mountain is no longer what it used to be.
3. What he told you was what had been discussed at the meeting. Who:
who 在表语从句中充当主语、宾语或表语，表示谁。
1. The problem is who could do the work
2. My trouble is who (whom) I can turn to.
Which:
which 在引导表语从句时,常充当定语,表语，表示其中哪一个。如：I read about it in some book or another, but what I don’t know is which (book) it is.
As if／as though
（1）由as if ,as though引导表语从句，表示好像。as if/though引导的表语从句常置于连系动词look, seem, sound, be, appear等后面，常用虚拟语气，表示不存在的动作或状态。常见结构：主语+连系动词（look/seem/appear……）+that/as if+从句。
1. It seems as if it was going to rain.
2. The young man with long hair looks as if he were a girl.
3. It sounds as if/though somebody was knocking at the door.
（2）as if/as though引导的表语从句如果是事实，就用陈述语气，如果与事实不符，就用虚拟语气(主句一般现在时从句就用过去式，be 的话变成were。主句是过去式，从句用过去完成时)。
1. It looks as if he were her own father.(与事实不符)
2.Dark clouds are gathering. It looks as if it’s going to rain. Because:
(1)当主句的主语为reason,或者是由why引导的从句时,与它们相关的表语从句用that来引导,而不能because引导; because 引导表语从句时只能用于It/That/This is /was because…句型中.
1. The reason why I was late was that I missed the train.
2. I was late. It/That/This was because I missed the train.
(2)reason 做主语时，表语从句只能用that引导, 不能用why 引导。句型结构为：
The reason (why…/for…)is /was that….
The reason is that……
When／wher e／why／how:
当表语从句中主语、宾语、表语具备，但是还是要表示疑问含义，可以判断句子中缺少状语，常常用相应的特殊疑问词引导，有why, when, where, how等; 连接副词where, when, why, how除在句中起连接作用外，在从句中还充当时间、地点、方式、原因状语，本身具有词义。
1. That’s where I can’t agree with you.
2. This is why Sara was late for the meeting.
3. This is how they overcome the difficulties.
4. My strongest memory is when I attended an American wedding.
表语从句常见句型
◆名词主语＋be＋that从句
The fact is that I was in the garden when the robbery happened.
☆作主语的名词通常有表示事实、真理的名词fact, truth 或表示看法观点的名词idea, opinion, belief, view, feeling, suggestion, plan 等。
☆suggestion, proposal, advice, requirement 等词后的表语从句要用虚拟语气（should）do。
◆名词主语＋be＋wh-疑问词引导的从句
The trouble is where we can get the things we need.
◆wh- 引导的主语从句＋be＋that 从句
What surprised me most was that all the pupils were unusually quiet.
◆T his / That ＋be ＋wh-疑问词引导的从句
This is how he make the Italian pizza.
表语从句引导词注意事项
●表语从句中的 that 不能省略
●表语从句中只能用 whether 不能用 if
●表语从句中，从句用陈述句语序
●除that 外的所有引导词都有自己的意义。
●除that, whether 外的所有引导词都须在从句中充当相应的成分
●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。
● 从句中含有“do ”时，如果后面接有宾语，引导词要选how ，
如果没有宾语，要用what 。
如：This is how I did my homework last night.
This is what I did last night.
随堂练习
1. That ’s _______we agreed on at the meeting.
A. that
B. what
C. when
D. whether 2. The question is ________ we will have our sports meet next week.
A. that
B. if
C. when
D. whether
3．The reason why he failed is ________he was too careless.
A. because
B. that
C. for
D. because of
4. Go and get your coat. It's ________you left it
A.where
B. there
C. there where
D. where there 5．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
6. What I want to know is ______ he likes the gift given by us.
A.that
B. if
C. whether
D.不填
7. The reason is_________I missed the bus.
A. that
B. when
C. why
D. what
8. That’s ___ the Party called on us to do.
A. why
B. what
C. how
D. that
9. The reason is ___ he is unable to operate the machine.
A. because
B. why
C. that
D. Whether
10 .That is ___ they separated.
A. that
B. what
C. which
D. where
11.Jane is no longer ___ she was four years ago.
A. what
B. which
C. that
D. when
12. The question is ___ the past is made to serve the present and foreign things are made to serve China.
A. why
B. what
C. how
D. that
13.That was___ I was in charge of the company.
A. that
B. when
C. where
D. what
14. She looked _________ she were ten years younger.
A. that
B. like
C. as
D. as though
15.—I fell sick!
--I think it is _______ you are doing too much.
A. why
B. when
C. what
D. because
16. 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
17. —He was born here.
-- That is _______ he likes the place so much.
A. that
B. what
C. why
D. how
18.That is ______ Lu Xun once lived.
A. what
B. where
C. that
D. why
19．_______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
20. The trouble is__________ we are short of tools.
A. what
B. that
C. how
D. why that
21. America was __________was first called ―India‖ by Columbus.
A. what
B. where
C. the place
D. there where
22. 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
23. ________he really means is ________he disagrees with us.
A. What … that
B. That … what
C. What … what
D. That … what
24. The energy is ________ makes the cells able to do their work.
A. that
B. which
C. what
D. such
25. Air is to us________ water is to fish.
A. what B .that C. which D. is that
26. All I ask________ you should tell the truth.
A. what B .that C. whom D. whether
27. ________troubles me is ________ I can’t learn all these English idioms by heart.
A. that; that
B. what: that
C. that; what
D. what; that
28. ________the old man’s son wanted to know was ________ the gold has been hidden.
A. that; what
B. What; where
C. What; that
D. That; if
29. It matters little________ a man dies, but ________matters much is ________he lives.
A. how; what; how
B. how; it; how
C. why; it; why
D. that; what; that
30. The true value of life is not in_______, _______.
A. which we get; and what give us
B. what we get; but what we give
C. which we get; and what we give
D. how we get; but that we give
强化练习（10分钟）
1.（2010年重庆市高考仿真试卷三）
surprised the world．
A．that；what B．which；that
C．that；which D．/；how
2.（四川省棠湖中学2010届高三考前适应训练）
—What are you worrying about?
—It is ________ there is any chance of being infected by AH1N1 virus. A．why B．that C．if D．whether
3.（山东省胶州市2010届高三上学期期末考试）
With the number of cars increasing rapidly in cities，a major problem is the cars can be parked．
A．which B．that C．when D．where
4. （河南省郑州外国语学校2010届高三上学期第三次月考）
As days go on, I think that Beijing will become ______ the whole world pay close attention to.
A. where
B. what
C. which
D. that
5. （河南省开封高中2010届高三上学期1月月考）
--- Would you please explain to me about the difference between the two words?
--- I’m sorry, but that’s I’m puzzled about.
A．why B．what C．which D．where
6. （江苏省南京师大附中2010届高三12月阶段测试）
Faced with challenges, you should believe your courage is __________ makes a difference.
A. that
B. what
C. which
D. whatever
7. （山东省潍坊市2010届高三上学期阶段性测试）
The policy of the mainland is very clear and straightforward, and the key problem is ____the leaders of Taiwan will accept it.
A. that
B. whether
C. why
D. how
8. （陕西省镇安中学2010届高三上学期第三次月考）
---You know I gave up the job as a waiter and went to that little company.
---That’s ____you’ve made a mistake. That company isn’t well managed.
A. what
B. where
C. why
D. how
9. （安徽省2010届高三上学期一轮复习名校联考（三））
We students got lost in the forest and decided to remain ____we were and waited for the guide
A．where B．what C．how D．who
10. （上海交大附中2010届高三上学期期中考试）
Most people don’t think of a stamp as a receipt, but that is ________ it really is ---- a proof of just how much money you paid in advance for mail delivery.
A. who
B. how
C. what
D. why
11．（辽宁省本溪县2010届高三暑期补课阶段考试）
Whether ways will be found to help China _______ the current world financial crisis is just _______ worries the public.
A. prevent; that
B. survive; what
C. forbid; that
D. quit; what 12．（辽宁省瓦房店高级中学2010届高三9月月考）
The view ____ many scientists hold is ____ too much emission of carbon dioxide is destructive.
A．what; that B．that; which C that; that D.which; which 13．（河北省衡水中学2010届高三上学期第三次调研考试）
The reason______ being late for the meeting was______ his little son fell
ill this morning.
A. for, that
B. why, that
C. for, because
D. why, because
14．（重庆市丰都中学2010届高三上学期第一次月考）
______ surprised me most was______ they had finished the work so quickly.
A. What; what
B. That; that
C. That; what
D. What; that
15．（山西省平遥中学2010届高三10月质检）
There is a saying , ―life is 10% ______ happens to us and 90%____ we respond to it.‖
A．who; why B．what; how
C．which; when D．that; that
答案：1-5 A D D B B 6-10 B B B A C 11-15 B C A D B
1. The traditional view is ____ we sleep because our brain is ―programmed‖ to make us do so. (2007上海)
A. when
B. why
C. whether
D. 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。因此，应选择可引导名词性从句且不充当任何成分的that。2．You are saying that everyone should be equal, and this is ____ I disagree. (2004)
A. why
B. where
C. what
D. how
[答案] B
[解析] 下划线处的引导词引导系动词is后的表语从句并在该表语从句中充当地点状语（―disagree‖属于不及物动词，―I disagree‖本身是完整的主谓结构），下划线应填入引导词where，表语从句―where I disagree‖的意思是―我不同意之处、我不同意的地方‖。3．— I drove to Zhuhai for the air show last week.
— Is that ____ you had a few days off? (1999)
A. why
B. when
C. what
D. where
[答案] A
[解析] 下划线处的引导词引导与系动词is连用的表语从句并在该表语从句中充当原因状语，下划线应填入表示―因此……‖（指因某种原因所造成的结果）的引导词why。
4．____ she couldn’t understand was ____ fewer and fewer students showed interest in her lessons. (2000上海）
A. What; why
B. That; what
C. What; because
D. Why; that
[答案] A
[解析] 第一个下划线处的引导词引导主语从句并在该主语从句中充当宾语，特指她所不理解的事情，应填入关系代词型的引导词what；第二个下划线处表示―因此……‖（指因某种原因所造成的后果，由why引导对应的名词性从句）而不是―为什么……‖（指原因、理由，由because引导对应的名词性从句），应填入引导词why。5．____ made the school proud was ____ more than 90% of the students had been admitted to key universities. (2003上海春）
A. What; because
B. What; that
C. That; what
D. That; because
[答案] B
[解析] 第一个下划线处的引导词引导主语从句并在该主语从句中充当主语，特指令校方骄傲的事情，应选用关系代词型的引导词what；第二个下划线处引导表语从句表示原因、理由，应由that 引导对应的名词性从句。
6．—Are you still thinking about yesterday’s game?
—Oh,that’s ____. (2003北京春）
A. what makes me feel excited
B. whatever I feel excited about
C. how I feel about it
D. when I feel excited
[答案] A
[解析] A选项的意思是―令我感觉激动的事物‖；B选项的意思是
―我觉得激动的任何事物‖；C选项的意思是―我对它感觉的方式‖；D 选项的意思是―令我感觉激动的时间‖。四个选项中A最适合跟代表―game‖的主语that对应，充当表语从句。
7. I had neither a raincoat nor an umbrella. ____I got wet through.
A. It’s the reason
B. That’s why
C. There’s why
D. It’s how
8. See the flags on top of the building? That was ______ we did this morning.
A. when
B. which
C. where
D. what
9. What surprised me was not what he said but ______ he said it.
A. the way
B. in the way that
C. in the way
D. the way which
10. –I prefer shutting myself in and listening to music all day on Sundays.
– That’s ______ I don’t agree. You should have a more active life.
A. where
B. How
C. when
D. what
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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： 1.He looked just as he had looked ten years before.他看起来还与十年前一样。 2.The question is whether they will be able to help us. 问 题是他们是否能帮我们。 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： 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。 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。如： 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。 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. 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. (3)连词because可引导表语从句。如： 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. That's because he didn't understand me. 那是因为他没有理解我.(That's because... 强调原因) That'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) (4)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： My suggestion is that we (should) start early tomorrow. 我的建议是我们明天一早就 出发。 二、系动词分类：
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表语从句 1.定义 表语从句定义：在一个复合句中，从句作的是主句的表语成分。 A The problem is puzzling. 这个问题令人困惑。 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+句子作表语（表语从句） B 连接表语从句的连接词有：that, what, who, when, where, which, why, whether, how, whoever，whichever ，whatever等。还有如because, as if, as though等。 He has become a teacher. 他已经成为一名教师。 He has become what he wanted to be ten years ago. 他已经成为了他10 年前想成为的。 His suggestion is good. 他的建议是好的。 His suggestion is that we should stay calm. 他的建议是，我们应该保持冷静。 The question is confusing. 这个问题令人困惑。 The question is when he can arrive at the hotel. 问题是，他什么时候可以到达酒店。 2.表语成分 表语是用来说明主语的身份、性质、品性、特征和状态的，表语常由名词、形容词、副词、介词短语、不定式、动词的-ing、从句来充当，它常位于系动词（be, become, appear,
(完整)高中英语表语从句讲解及专项练习
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。 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。 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 g ot 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.
高中英语表语从句讲解及练习
. 表语从句 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。 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。 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.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。 4、由关系副词引导的表语从句。 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。 5、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。
高中英语表语从句讲解及练习资料讲解
高中英语表语从句讲 解及练习
表语从句 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。 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。 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.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。 4、由关系副词引导的表语从句。 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。 5、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。 可以接表语从句的系动词有：
高中英语表语从句讲解及练习
表语从句 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。 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。 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.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。 4、由关系副词引导的表语从句。 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。 5、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。 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