名词性从句之表语从句 课件(共37张PPT)-2026届高三英语二轮复习专项
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| 名称 | 名词性从句之表语从句 课件(共37张PPT)-2026届高三英语二轮复习专项 |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2025-07-17 07:59:11 | ||
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(共37张PPT)
Noun Clauses
Predicative Clauses
The outdoor activity seems attractive.
The boy remains puzzled.
This is a diligent student.
His job is teaching chemistry.
predicative
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、代词、数词、动词过去分词、动词的-ing形式、副词、介词短语、形容词、不定式和从句等来充当。
The outdoor activity seems attractive.
The boy remains puzzled.
This is a diligent student.
His job is to teach chemistry.
What do the sentences have in common in their structures
Conducting experiments is his job.
Conducting experiments is what he does every day.
表语从句是指______________________, 紧跟在________之后，对主语进行解释、说明，使主语的内容具体化。
系动词
从句在句子中充当表语
Find the predicative clause
1“是”：be
2“看”：look/seem/appear
3“变得”：become/get/grow/turn/go/fall
4“保持”：remain/keep/stay
5“起来”：feel/look/seem/appear/sound/taste/smell
再加: prove/turn out
可以接表语从句系动词有：
“结果是...;证明是...”
可以接表语从句系动词有：
表从的连接词
连接词 从属连词 在从句中不作成分 that, whether, as if/as though, because
无含义/ 是否 / 似乎/好像
连接代词 在从句中作主语、宾语、表语、定语 what, who, whom, which,
whatever, whoever, whomever,whichever
whose
连接副词 在从句中作状语 when, where, how, why
表从中不用if
The fact is that he doesn’t really try.
The trouble is that I have lost his address.
My suggestion is that we should tell him.
It seems that he was late for the train.
1. 由that引导，that本身没有词义，在句中只起连接作用，不充当句子成分,通常不省略。
that引导表语从句时，主句的主语常常是些抽象名词，如question, trouble, problem, result, chance, suggestion, idea, reason等。
1. The question is ______________________
2. The question is _______________________
whether it is worth doing.
whether we can win them.
2. whether 在句子中不充当任何成分，但具有“是否”的意义。注意：if不能引导表语从句。
The question is what caused the accident.
That mountain is no longer what it used to be.
The problem is whose work is the best.
The question is which of us should go.
The question is who(m) we should trust.
3. 由连接代词who, what, which, whom, whose, whatever, whoever, whomever, whichever 引导表语从句，并在句中作主语、宾语、表语或定语，连接代词不能省略。
4. 连接副词 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。
This is why she was late for the meeting.
The question is how he did it.
That is where he was born.
That’s when I see your face.
5. as if/though引导表语从句时，在句子中不充当任何成分，但有意义。译为：似乎，好像。
He looks as if he were a rich man.
It sounds as if someone is knocking at the door.
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，从句就用一般过去时。主句是一般过去时，从句用过去完成时 )。
The young man with long hair looks as if he were a girl.
Dark clouds are gathering. It looks as if it’s going to rain.
1. I was late for school this morning. That's because I stayed up too late last night. (果→因)
今天早上我上学迟到了,那是因为我昨晚熬夜太晚了。
2. I stayed up too late last night. That's why I was late for school this morning. (因→果)
我昨晚熬夜太晚,那就是我今天早上上学迟到的原因。
6. 由because/why引导
because引导的表语从句常用于“That's because…”结构中,说明产生上述结果的原因;why引导的表语从句说明由上述原因导致的某种结果。
7. 使用虚拟语气的表语从句
当主语是表示“坚持、命令、建议、要求(insistence，order, command, suggestion, advice, recommendation，proposal, request, requirement, demand)”等名词时,表语从句应该用虚拟语气,即从句谓语用“should+动词原形”形式,should可以省略。
e.g. My suggestion is that we (should) start early tomorrow.
小试身手
The problem is ___________we can finish the task or not.
The question is ________we can get in touch with him.
The most pleasant thing of the rainy season is ________one can be entirely free from dust.
Running means doing the same thing for a while. That is ________ I did’t enjoy running.
The question is _________ caused the accident.
The most important thing is ___________ responsibility it is.
whether
how
that
why
what
whose
表从的重难点
1. He failed in the exam. That's _______ he felt frustrated.
felt frustrated.
failed in the exam.
why
做成分(状语)，有意义，不能省略
1.表从中易错连接词 why because
2. He felt frustrated. That's __________he failed in the exam.
because
3. The reason why he felt frustrated was that he failed in the exam.
I lost the game. The reason was ______ I underestimated my competitors.
The reason ___ I lost the game was _____ I underestimated my competitors.
I lost the game. That was __________ I underestimated my competitors.
名词reason作主语时，后面的表语从句表示原因时要用that引导。
that
why
that
because
2.表从中易错连接词 that; because
He is to blame. That's because he passed a slip of paper in class.
He is to blame. The reason is that he passed a slip of paper in class.
The reason why he is to blame is that he passed a slip of paper in class.
He is to blame.
He passed a slip of paper in class.
2.表从中易错连接词 that; because
The young girl with short hair looks ________ she were a boy.
as if
as though
这个留短发的女生看起来像是个男生。
与事实不符:
表示对现在的虚拟，用一般过去式。
3.表从中易错连接词 as if/as though
李宇春
It sounds as if he _________(be) to the moon.
had been
听起来好像他去过月球一样。
与事实不符:
表示对过去的虚拟，用过去完成式。
3.表从中易错连接词 as if/as though
Dark clouds are gathering. It seems as if it is going to rain.
看起来好像要下雨了。
与事实相符: 用正常的陈述语气。
3.表从中易错连接词 as if/as though
as if/as though引导的表语从句如果与事实不符，用虚拟语气;
如果是事实或者有发生的可能性，用陈述语气
1. It sounds as if someone ___ knocking at the door.
(与事实相符)
2. Tom likes to talk big as if he ______(be) an important person.
(对现在的虚拟，用一般过去时，be动词用were )
3. He talks as if he _______ become president tomorrow.
(对将来的虚拟，用would/could/might/should+do)
4. He talked about Rome as if he __________(be) there.
(对过去的虚拟，用had done)
is
were
would
had been
SUMMARY
系动词
连接词
重难点
从属连词，连接代词，连接副词
(注意：as if/as though/because)
六大类
That is why.../That is because...
The reason(why...) is that.../That is because...
as if/as though
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
课堂练习
√
√
√
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.
√
√
【完成句子】
that he didn’t really try
whether the film is worth seeing
it seems as if
1)The fact was _____________________________.
事实是他没有真正地尝试。
2) The question is ____________________________.
问题是这部电影是否值得看。
3) Now _______________she had known Millie for years.
现在看起来好像她认识米莉已有好多年了。
4) My advice is that you _______________________ as often as possible.
我的建议是你要尽可能经常地练习说英语。
5) That’s __________________________________.
那就是我第一次遇见她的地方。
6) The problem is ________________________________.
问题是谁才真正适合做这份艰苦的工作。
practice speaking English
who is really fit for the hard job
where I first met her
课后练习一、填入恰当的连接词 1. ____________ I want to know is __________ road we should take. 2. The result of the invention of steam engine was __________ human power was replaced by mechanical power.3.—What a mess! You are always so lazy! —I’m not to blame, mum. I am ________ you have made me.4. The main question is ____________ you want your arms inside or outside the sleeping bag.5. As John Lennon once said, life is _________ happens to you while you are busy making other plans.
What
which
that
what
whether
what
6. Please put the medicine on the top of the shelf. It’s __________our children can’t reach it.
7. The last time we had great fun together was ___________ we were visiting the Water Park.
8. The little girl _________ got lost decided to remain ___________ she was and wait for her mother.
9. A ship in harbour is safe, but that’s not __________ ships are built for.
10. Actually, girls can be __________ they want to be just like boys, ___________ it is a pilot, an astronaut, or a manager .
where
when
who
where
what
whatever
whether
11. From space, the earth looks blue. That’s _________about 71% of its surface _____________(cover) by water.
12. He was born here. That’s ___________ he likes the place so much.
13. It seems ____________ the brain is preserving its most important memories.
14. The teacher’s requirement is ___________ we ______________(recite) the passage in twenty minutes.
15. All she is worried about is ____________ he is all right.
because
is covered
why
that/as if
that
(should) recite
whether
16. —Do you think it is wise for Chinese mothers to try to do everything for their children
— No, that’s __________ they are mistaken.
17. Sorry, he can’t go with you. The reason is ___________ he has something to do tomorrow.
18. The reason _________ he is absent from the meeting is _________ he is ill.
19. He is ill. That’s ___________ he is absent from the meeting.
20. He is absent from the meeting. That’s _____________ he is ill.
where
that
why
that
why
because
21. You are saying _________ we born equal and that’s_________ I agree.
22. The question is __________ we will have our sports meeting next week.
23. He was ill. That’s ___________ he was sent to the hospital.
24. That’s ___________ the direct current always flows in a wire in one direction.
25. This is __________ heat can melt ice, vaporize water and cause bodies to expand.
that
where
whether
why
because
why
那是由于直流电在导线中总沿着一个方向流动。
那就是热能使冰融化，使水蒸发，使物体膨胀的原因。
1. 他已经不是以前的他了。
_______________________________________________
2.麻烦的是我把他的地址丢了。
_______________________________________________
3.问题是我们应当相信谁。
_______________________________________________
4.问题是什么时候他才能到达酒店。
_______________________________________________
5.我们似乎应该对此事负责。
_______________________________________________
He is no longer what he was.
The trouble is that I have lost his address.
The question is who (m) we should trust.
The problem is when he can arrive at the hotel.
It seems that we should answer for this.
6.看起来好像要下雪了。
_______________________________________________
7.你爸爸想知道的是你跟同学们相处得怎么样。
_______________________________________________
8.我的建议是我们应该帮他想个办法。
_______________________________________________
9.原因是你不信任她。
_______________________________________________
10.你说我们生而平等，那是我同意你的地方。
_______________________________________________
It looked as if it was going to snow.
What your father wants to know is how you are getting on with your classmates.
My suggestion is that we should come up with an idea for him.
The reason is that you don’t trust her.
You are saying that we born equal and that’s where I agree.
Noun Clauses
Predicative Clauses
The outdoor activity seems attractive.
The boy remains puzzled.
This is a diligent student.
His job is teaching chemistry.
predicative
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、代词、数词、动词过去分词、动词的-ing形式、副词、介词短语、形容词、不定式和从句等来充当。
The outdoor activity seems attractive.
The boy remains puzzled.
This is a diligent student.
His job is to teach chemistry.
What do the sentences have in common in their structures
Conducting experiments is his job.
Conducting experiments is what he does every day.
表语从句是指______________________, 紧跟在________之后，对主语进行解释、说明，使主语的内容具体化。
系动词
从句在句子中充当表语
Find the predicative clause
1“是”：be
2“看”：look/seem/appear
3“变得”：become/get/grow/turn/go/fall
4“保持”：remain/keep/stay
5“起来”：feel/look/seem/appear/sound/taste/smell
再加: prove/turn out
可以接表语从句系动词有：
“结果是...;证明是...”
可以接表语从句系动词有：
表从的连接词
连接词 从属连词 在从句中不作成分 that, whether, as if/as though, because
无含义/ 是否 / 似乎/好像
连接代词 在从句中作主语、宾语、表语、定语 what, who, whom, which,
whatever, whoever, whomever,whichever
whose
连接副词 在从句中作状语 when, where, how, why
表从中不用if
The fact is that he doesn’t really try.
The trouble is that I have lost his address.
My suggestion is that we should tell him.
It seems that he was late for the train.
1. 由that引导，that本身没有词义，在句中只起连接作用，不充当句子成分,通常不省略。
that引导表语从句时，主句的主语常常是些抽象名词，如question, trouble, problem, result, chance, suggestion, idea, reason等。
1. The question is ______________________
2. The question is _______________________
whether it is worth doing.
whether we can win them.
2. whether 在句子中不充当任何成分，但具有“是否”的意义。注意：if不能引导表语从句。
The question is what caused the accident.
That mountain is no longer what it used to be.
The problem is whose work is the best.
The question is which of us should go.
The question is who(m) we should trust.
3. 由连接代词who, what, which, whom, whose, whatever, whoever, whomever, whichever 引导表语从句，并在句中作主语、宾语、表语或定语，连接代词不能省略。
4. 连接副词 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。
This is why she was late for the meeting.
The question is how he did it.
That is where he was born.
That’s when I see your face.
5. as if/though引导表语从句时，在句子中不充当任何成分，但有意义。译为：似乎，好像。
He looks as if he were a rich man.
It sounds as if someone is knocking at the door.
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，从句就用一般过去时。主句是一般过去时，从句用过去完成时 )。
The young man with long hair looks as if he were a girl.
Dark clouds are gathering. It looks as if it’s going to rain.
1. I was late for school this morning. That's because I stayed up too late last night. (果→因)
今天早上我上学迟到了,那是因为我昨晚熬夜太晚了。
2. I stayed up too late last night. That's why I was late for school this morning. (因→果)
我昨晚熬夜太晚,那就是我今天早上上学迟到的原因。
6. 由because/why引导
because引导的表语从句常用于“That's because…”结构中,说明产生上述结果的原因;why引导的表语从句说明由上述原因导致的某种结果。
7. 使用虚拟语气的表语从句
当主语是表示“坚持、命令、建议、要求(insistence，order, command, suggestion, advice, recommendation，proposal, request, requirement, demand)”等名词时,表语从句应该用虚拟语气,即从句谓语用“should+动词原形”形式,should可以省略。
e.g. My suggestion is that we (should) start early tomorrow.
小试身手
The problem is ___________we can finish the task or not.
The question is ________we can get in touch with him.
The most pleasant thing of the rainy season is ________one can be entirely free from dust.
Running means doing the same thing for a while. That is ________ I did’t enjoy running.
The question is _________ caused the accident.
The most important thing is ___________ responsibility it is.
whether
how
that
why
what
whose
表从的重难点
1. He failed in the exam. That's _______ he felt frustrated.
felt frustrated.
failed in the exam.
why
做成分(状语)，有意义，不能省略
1.表从中易错连接词 why because
2. He felt frustrated. That's __________he failed in the exam.
because
3. The reason why he felt frustrated was that he failed in the exam.
I lost the game. The reason was ______ I underestimated my competitors.
The reason ___ I lost the game was _____ I underestimated my competitors.
I lost the game. That was __________ I underestimated my competitors.
名词reason作主语时，后面的表语从句表示原因时要用that引导。
that
why
that
because
2.表从中易错连接词 that; because
He is to blame. That's because he passed a slip of paper in class.
He is to blame. The reason is that he passed a slip of paper in class.
The reason why he is to blame is that he passed a slip of paper in class.
He is to blame.
He passed a slip of paper in class.
2.表从中易错连接词 that; because
The young girl with short hair looks ________ she were a boy.
as if
as though
这个留短发的女生看起来像是个男生。
与事实不符:
表示对现在的虚拟，用一般过去式。
3.表从中易错连接词 as if/as though
李宇春
It sounds as if he _________(be) to the moon.
had been
听起来好像他去过月球一样。
与事实不符:
表示对过去的虚拟，用过去完成式。
3.表从中易错连接词 as if/as though
Dark clouds are gathering. It seems as if it is going to rain.
看起来好像要下雨了。
与事实相符: 用正常的陈述语气。
3.表从中易错连接词 as if/as though
as if/as though引导的表语从句如果与事实不符，用虚拟语气;
如果是事实或者有发生的可能性，用陈述语气
1. It sounds as if someone ___ knocking at the door.
(与事实相符)
2. Tom likes to talk big as if he ______(be) an important person.
(对现在的虚拟，用一般过去时，be动词用were )
3. He talks as if he _______ become president tomorrow.
(对将来的虚拟，用would/could/might/should+do)
4. He talked about Rome as if he __________(be) there.
(对过去的虚拟，用had done)
is
were
would
had been
SUMMARY
系动词
连接词
重难点
从属连词，连接代词，连接副词
(注意：as if/as though/because)
六大类
That is why.../That is because...
The reason(why...) is that.../That is because...
as if/as though
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
课堂练习
√
√
√
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.
√
√
【完成句子】
that he didn’t really try
whether the film is worth seeing
it seems as if
1)The fact was _____________________________.
事实是他没有真正地尝试。
2) The question is ____________________________.
问题是这部电影是否值得看。
3) Now _______________she had known Millie for years.
现在看起来好像她认识米莉已有好多年了。
4) My advice is that you _______________________ as often as possible.
我的建议是你要尽可能经常地练习说英语。
5) That’s __________________________________.
那就是我第一次遇见她的地方。
6) The problem is ________________________________.
问题是谁才真正适合做这份艰苦的工作。
practice speaking English
who is really fit for the hard job
where I first met her
课后练习一、填入恰当的连接词 1. ____________ I want to know is __________ road we should take. 2. The result of the invention of steam engine was __________ human power was replaced by mechanical power.3.—What a mess! You are always so lazy! —I’m not to blame, mum. I am ________ you have made me.4. The main question is ____________ you want your arms inside or outside the sleeping bag.5. As John Lennon once said, life is _________ happens to you while you are busy making other plans.
What
which
that
what
whether
what
6. Please put the medicine on the top of the shelf. It’s __________our children can’t reach it.
7. The last time we had great fun together was ___________ we were visiting the Water Park.
8. The little girl _________ got lost decided to remain ___________ she was and wait for her mother.
9. A ship in harbour is safe, but that’s not __________ ships are built for.
10. Actually, girls can be __________ they want to be just like boys, ___________ it is a pilot, an astronaut, or a manager .
where
when
who
where
what
whatever
whether
11. From space, the earth looks blue. That’s _________about 71% of its surface _____________(cover) by water.
12. He was born here. That’s ___________ he likes the place so much.
13. It seems ____________ the brain is preserving its most important memories.
14. The teacher’s requirement is ___________ we ______________(recite) the passage in twenty minutes.
15. All she is worried about is ____________ he is all right.
because
is covered
why
that/as if
that
(should) recite
whether
16. —Do you think it is wise for Chinese mothers to try to do everything for their children
— No, that’s __________ they are mistaken.
17. Sorry, he can’t go with you. The reason is ___________ he has something to do tomorrow.
18. The reason _________ he is absent from the meeting is _________ he is ill.
19. He is ill. That’s ___________ he is absent from the meeting.
20. He is absent from the meeting. That’s _____________ he is ill.
where
that
why
that
why
because
21. You are saying _________ we born equal and that’s_________ I agree.
22. The question is __________ we will have our sports meeting next week.
23. He was ill. That’s ___________ he was sent to the hospital.
24. That’s ___________ the direct current always flows in a wire in one direction.
25. This is __________ heat can melt ice, vaporize water and cause bodies to expand.
that
where
whether
why
because
why
那是由于直流电在导线中总沿着一个方向流动。
那就是热能使冰融化，使水蒸发，使物体膨胀的原因。
1. 他已经不是以前的他了。
_______________________________________________
2.麻烦的是我把他的地址丢了。
_______________________________________________
3.问题是我们应当相信谁。
_______________________________________________
4.问题是什么时候他才能到达酒店。
_______________________________________________
5.我们似乎应该对此事负责。
_______________________________________________
He is no longer what he was.
The trouble is that I have lost his address.
The question is who (m) we should trust.
The problem is when he can arrive at the hotel.
It seems that we should answer for this.
6.看起来好像要下雪了。
_______________________________________________
7.你爸爸想知道的是你跟同学们相处得怎么样。
_______________________________________________
8.我的建议是我们应该帮他想个办法。
_______________________________________________
9.原因是你不信任她。
_______________________________________________
10.你说我们生而平等，那是我同意你的地方。
_______________________________________________
It looked as if it was going to snow.
What your father wants to know is how you are getting on with your classmates.
My suggestion is that we should come up with an idea for him.
The reason is that you don’t trust her.
You are saying that we born equal and that’s where I agree.