人教版（2019）选择性必修 第二册Unit 1 Science and Scientists Discover useful structures 表语从句课件(共36张PPT)
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| 名称 | 人教版（2019）选择性必修 第二册Unit 1 Science and Scientists Discover useful structures 表语从句课件(共36张PPT) |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2024-03-08 09:22:37 | ||
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(共36张PPT)
选择性必修二 Unit 1
The Predicative Clauses
Discover useful structures
Teaching objectives:
1. Enable the students to master the usage of
predicative in this unit.
2. Enable the students to use the predicative
patterns flexibly.
3. Train the students to apply some skills by doing
the relevant exercises.
review
目录
CONTENTS
表语从句定义
表语从句引导词
巩固练习
表语从句定义
01
Part One
1. One theory was that bad air caused the disease.
2. Another theory was that cholera was caused by an infection from germs in food or water.
3. The truth was that the water from the Broad Street had been infected by waste.
画出下列句子中的表语从句
总结：在复合句中作____________的从句，叫作表语从句。表语从句接在__________________之后，对主语进行解释、说明，使主语的内容具体化。
表语
be动词或系动词
系动词有哪些？
表语从句引导词
注：表语从句用陈述语气，且连接词均不可省略。
02
Part One
In general, doctors in those days had two contradictory theories to explain how cholera spread. One theory was ______ bad air caused the disease. Another was ______ cholera was caused by an infection from germs in food or water. (Para. 2)
What is more, in another part of London, a woman and her daughter had died of cholera after moving away from Broad Street. It seemed ______ the woman liked the water from the pump so much that she had it delivered to her house every day. (Para. 3)
一、that 引导的表语从句
that
that
that
that ____ 意义，在表语从句中 ______ 成分,起______ 作用，________ 省略。
无
不充当
连接
不能
The question is _________ we can rely on him. He often tells lies.
The question is _________ we can finish the task on time, for we have only three days left.
二、whether 引导的表语从句
whether
whether
思考：可以用“if”来引导吗？
连接词whether起 _____ 作用，意为“_________________”，在句中也不作任何成分（注意：if ______引导表语从句)。
连接
是否、究竟、到底
不能
三、what, which, who, whom, whose 等引导的表语从句
Tom is no longer _______ he used to be.
The question is _______ of us should come first. (我们两个中的哪一个)
The problem is ______ is really fit for the hard job.
The important thing is _______name should be put on the top of the list.
what
which
who
whose
连接代词 what, which, who, whom, whose 除在句子中起 ______ 作用外，还可在从句中作 _____、_____ 或 ______，且各有词义。
连接
主语
表语
定语
that与what的区别
总结：that引导表语从句时，是连词，在从句中不作成分；what是连接代词，引导表语从句时，在从句中作主语、宾语或表语。
1. The fact is _____________ we tend to make mistakes when we are
nervous.
2. This is ______________ I want to say.
3. The question is ______________ caused the accident.
4. The trouble is _____________ she has lost his address.
that
what
that
what
四、where, when, why, how 引导的表语从句
That’s _______ I can’t agree with you.
This is ______ Sara was late for the meeting. (She missed the early bus.)
This is _____ they overcome the difficulties.
My strongest memory is ______ I attended an American wedding as a child.
where
why
how
when
连接副词where, when, why, how除在句中起______ 作用外，在从句中还充当_______、______、______或______状语，本身具有词义。
连接
时间
地点
方式
原因
It seems __________________ he doesn’t know the answer.
It looks __________________ it is going to rain.
五、as if / as though 引导的表语从句
as if / as though
as if / as though
as if / as though 引导的表语从句常置于_________ look, seem, sound,be,become 等_________。
系动词
后面
注意：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。
1. It sounds as if someone is knocking at the door. (与事实相符)
2. Tom likes to talk big as if he were an important person.
(对现在的虚拟，用一般过去时，be动词用were)
3. He opens his mouth as he would say something.
(对将来的虚拟，用would/could/might+动词原形)
4. He talked about Rome as if he had been there.
(对过去的虚拟，用had done)
The reason why he is late for school is ________ he
missed the bus.
2. Why we decided to put off the football match is ________
the weather was too bad.
that
that
当主句的主语是 _____________ 或 why 引导的 __________时常用 ______ 来引导表语从句，而不用 because。
the reason
主语从句
that
Attention
3. I think that’s _____ he was so angry.
4. I think it is ________ you are doing too much.
5. The reason ______ he was so late is _____ it was raining hard.
why
because
that / this / it + is / was +why + ________ (原因 / 结果)
表示“_________________________”
that / this / it + is / was + because + _______ (原因 / 结果)
表示“________________________”
the reason why … is that … 中 why 是引导 _________，that 引导的是 _________，表示“___________________”。
这 / 那就是……的原因
结果
这 / 那就是因为……
原因
why
that
定语从句
表语从句
……的原因是……
Attention
6. My suggestion is that we ____________ (go) and help him.
7. My advice is that we ____________ (get) there by train.
(should) go
(should) get
当主句的主语是表示建议（suggestion, advice）、命令（order）、要求（request, proposal）、计划（plan）等的名词时，表语从句要用虚拟语气，即（should）+ 动词原形。
Attention
常见句式
It seems/ appears that +句子 “似乎...”
It turns out /proves that +句子 “结果、原来...”
The chances are that +句子 “可能....”
It seems that we are going to be late.
It turns out/proves that she was a friend of my sister.
The chances are that he will recover from his injury in time for the next game.
巩固练习
03
Part One
解题思路
先根据句意选择
不充当成分 that,whether, as if/though,because 连词
充当状语 when,where,why,how 连接副词
充当定语 whose,what,which 连接代词
充当主语，宾语，表语 其他
再分析“充不充当句子成分”
1. My worry is if he can get there on time.
2. The reason why he failed was because he hadn’t studied hard.
3. My advice is that he sees the doctor right away.
4. The trouble is what we are short of money.
that
Practice and Apply
whether
that
see
即学即练
改错
Complete the following ideas by famous scientists with a word or expression that introduces a predicative clause and translate them in your own words.
Research is _________ I’m doing when I don’t know what I’m
doing. (Werner von Braun)
what
as though because that what whoever why
Practice and Apply
研究就是当我不知道自己在做什么的时候我在做的事。
——布劳恩（徳裔美籍火箭科学家）
2. The saddest aspect of life right now is _______ science gathers
knowledge faster than society gathers wisdom. (Isaac Asimov)
that
as though because that what whoever why
Practice and Apply
当下生活最可悲的一面就是科学积累知识的速度超过了社会积累智慧的速度。——艾萨克·阿西莫夫
（美国科幻小说作家、化学家）
3. An expert can be _________ has made all the mistakes that can
be made in a very narrow field. (Niles Bohr)
whoever
as though because that what whoever why
Practice and Apply
专家可能是在一个非常狭窄的领域里犯了所有可能犯的错误的人。
——尼耳斯·玻尔 （丹麦物理学家）
4. When different experiments give you the same result, it is no longer subject to your opinion. That’s the good thing about science: It is true whether or not you believe in it. That’s _________ it works. (Neil deGrasse Tyson)
why
as though because that what whoever why
Practice and Apply
当不同的实验呈现出相同的结果时，它就不再受制于你的意见。这就是科学的好处: 不管你信不信它都是真的。这就是科学工作的原理。
——奈尔·德葛拉司·泰森 （美国天文学家）
5. This applied science, which saves work and makes life easier, brings us little happiness. That is _________ we have not yet learnt to make sensible use of it! (Albert Einstein)
because
as though because that what whoever why
Practice and Apply
这种节约工作量，使生活更容易的应用科学，给我们带来的快乐很少。那是因为我们还没有学会合理地利用它!
—— 爱因斯坦
6. There are only two ways to live your life. One is ____________ nothing is a miracle. The other is ____________ everything is a miracle. (Albert Einstein)
as though
as though
as though because that what whoever why
Practice and Apply
你的生活只有两种方式。一种是好像什么都不是奇迹。另一种是好像一切都是奇迹。
—— 爱因斯坦
1. David is talking to Maria about their scientific research project. First complete David's lines (A-E), using the words in the box. Then put David's lines in the correct order. (P5)
as if that what who when how why whose which whether
A: Absolutely ! You may not believe it, but that was
___________happened at the initial stage of our group's research
on developing a vaccine for malaria.
B: Yes, it is. And it seemed __________the theories were useful, but
the fact was_________ we couldn’t persuade one another that one
theory was better than another.
what
as if
that
宾从
C: Exactly. The problem was not about ______________all our theories
were equally good, but in deciding _______________________theory
to depend upon.
D: We realized that what we cared about was not _______________
aspect we needed to develop a theory in, but rather _____ we
can reduce the cost of a vaccine without reducing its effect!
E: You're right. At last, we became focused on the key issue, which was _________we had to carry out the research in the first place.
whether
which/what/whose
which/what
how
why
主从
Maria: This mix of theory and data is one of the key characteristics of what we call science.
David: _________________
Maria: With your theoretical framework
David:__________________
Maria: Deciding on a theory is definitely of critical importance.
David: _________________
Maria This was when you should have calmed down and got down to doing some solid work.
David: _________________
Maria: So what happened in the end
David: _________________
B
C
E
D
A
宾从
of+抽象n.=adj.
1. The fact was .
事实是他没有做真正的努力。
2. The question is .
问题是这部电影是否值得看。
3. she had known Millie for years.
看起来好像她认识米莉已有好多年了。
4. My advice is as often
as possible. 我的建议是你尽可能经常地练习说英语。
2. Complete the sentences.
that he didn't really try
whether the film is worth seeing
It seemed as though/if
that you (should) practise speaking English
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。
7. That is .
那就是我想让你在这儿工作的原因。
8. I was late for school this morning.
last night.
今天早上我上学迟到了。那是因为我昨晚睡得太晚了。
where I first met her
who is really fit for the hard job
why I want you to work here
That's because I stayed up too late
Everyone knew 1. Wendy was a famous writer, but no one knew 2. she came from and 3. she was born in 1961 was still a mystery. 4. they did know was
5. she was loved by poor people because she always helped
6. was in need of money. Wendy was generous and helpful，but some people thought she was chasing fame. Wendy said she didn't understand 7. they were so narrow-minded，but it didn't matter 8. others thought of her. She just wanted to do 9.______
she thought was right. She thought that was 10. the meaning of life lied.
3. Fill in the blanks.
that
where
whether
What
that
whoever
why
what
what(ever)
where
when
where
why
how
what/whatever
which/whichever
who/whoever
whom,whose...
that,whether
as if/as though
because
Summary
单/击/此/处/添/加/副/标/题
Thanks
选择性必修二 Unit 1
The Predicative Clauses
Discover useful structures
Teaching objectives:
1. Enable the students to master the usage of
predicative in this unit.
2. Enable the students to use the predicative
patterns flexibly.
3. Train the students to apply some skills by doing
the relevant exercises.
review
目录
CONTENTS
表语从句定义
表语从句引导词
巩固练习
表语从句定义
01
Part One
1. One theory was that bad air caused the disease.
2. Another theory was that cholera was caused by an infection from germs in food or water.
3. The truth was that the water from the Broad Street had been infected by waste.
画出下列句子中的表语从句
总结：在复合句中作____________的从句，叫作表语从句。表语从句接在__________________之后，对主语进行解释、说明，使主语的内容具体化。
表语
be动词或系动词
系动词有哪些？
表语从句引导词
注：表语从句用陈述语气，且连接词均不可省略。
02
Part One
In general, doctors in those days had two contradictory theories to explain how cholera spread. One theory was ______ bad air caused the disease. Another was ______ cholera was caused by an infection from germs in food or water. (Para. 2)
What is more, in another part of London, a woman and her daughter had died of cholera after moving away from Broad Street. It seemed ______ the woman liked the water from the pump so much that she had it delivered to her house every day. (Para. 3)
一、that 引导的表语从句
that
that
that
that ____ 意义，在表语从句中 ______ 成分,起______ 作用，________ 省略。
无
不充当
连接
不能
The question is _________ we can rely on him. He often tells lies.
The question is _________ we can finish the task on time, for we have only three days left.
二、whether 引导的表语从句
whether
whether
思考：可以用“if”来引导吗？
连接词whether起 _____ 作用，意为“_________________”，在句中也不作任何成分（注意：if ______引导表语从句)。
连接
是否、究竟、到底
不能
三、what, which, who, whom, whose 等引导的表语从句
Tom is no longer _______ he used to be.
The question is _______ of us should come first. (我们两个中的哪一个)
The problem is ______ is really fit for the hard job.
The important thing is _______name should be put on the top of the list.
what
which
who
whose
连接代词 what, which, who, whom, whose 除在句子中起 ______ 作用外，还可在从句中作 _____、_____ 或 ______，且各有词义。
连接
主语
表语
定语
that与what的区别
总结：that引导表语从句时，是连词，在从句中不作成分；what是连接代词，引导表语从句时，在从句中作主语、宾语或表语。
1. The fact is _____________ we tend to make mistakes when we are
nervous.
2. This is ______________ I want to say.
3. The question is ______________ caused the accident.
4. The trouble is _____________ she has lost his address.
that
what
that
what
四、where, when, why, how 引导的表语从句
That’s _______ I can’t agree with you.
This is ______ Sara was late for the meeting. (She missed the early bus.)
This is _____ they overcome the difficulties.
My strongest memory is ______ I attended an American wedding as a child.
where
why
how
when
连接副词where, when, why, how除在句中起______ 作用外，在从句中还充当_______、______、______或______状语，本身具有词义。
连接
时间
地点
方式
原因
It seems __________________ he doesn’t know the answer.
It looks __________________ it is going to rain.
五、as if / as though 引导的表语从句
as if / as though
as if / as though
as if / as though 引导的表语从句常置于_________ look, seem, sound,be,become 等_________。
系动词
后面
注意：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。
1. It sounds as if someone is knocking at the door. (与事实相符)
2. Tom likes to talk big as if he were an important person.
(对现在的虚拟，用一般过去时，be动词用were)
3. He opens his mouth as he would say something.
(对将来的虚拟，用would/could/might+动词原形)
4. He talked about Rome as if he had been there.
(对过去的虚拟，用had done)
The reason why he is late for school is ________ he
missed the bus.
2. Why we decided to put off the football match is ________
the weather was too bad.
that
that
当主句的主语是 _____________ 或 why 引导的 __________时常用 ______ 来引导表语从句，而不用 because。
the reason
主语从句
that
Attention
3. I think that’s _____ he was so angry.
4. I think it is ________ you are doing too much.
5. The reason ______ he was so late is _____ it was raining hard.
why
because
that / this / it + is / was +why + ________ (原因 / 结果)
表示“_________________________”
that / this / it + is / was + because + _______ (原因 / 结果)
表示“________________________”
the reason why … is that … 中 why 是引导 _________，that 引导的是 _________，表示“___________________”。
这 / 那就是……的原因
结果
这 / 那就是因为……
原因
why
that
定语从句
表语从句
……的原因是……
Attention
6. My suggestion is that we ____________ (go) and help him.
7. My advice is that we ____________ (get) there by train.
(should) go
(should) get
当主句的主语是表示建议（suggestion, advice）、命令（order）、要求（request, proposal）、计划（plan）等的名词时，表语从句要用虚拟语气，即（should）+ 动词原形。
Attention
常见句式
It seems/ appears that +句子 “似乎...”
It turns out /proves that +句子 “结果、原来...”
The chances are that +句子 “可能....”
It seems that we are going to be late.
It turns out/proves that she was a friend of my sister.
The chances are that he will recover from his injury in time for the next game.
巩固练习
03
Part One
解题思路
先根据句意选择
不充当成分 that,whether, as if/though,because 连词
充当状语 when,where,why,how 连接副词
充当定语 whose,what,which 连接代词
充当主语，宾语，表语 其他
再分析“充不充当句子成分”
1. My worry is if he can get there on time.
2. The reason why he failed was because he hadn’t studied hard.
3. My advice is that he sees the doctor right away.
4. The trouble is what we are short of money.
that
Practice and Apply
whether
that
see
即学即练
改错
Complete the following ideas by famous scientists with a word or expression that introduces a predicative clause and translate them in your own words.
Research is _________ I’m doing when I don’t know what I’m
doing. (Werner von Braun)
what
as though because that what whoever why
Practice and Apply
研究就是当我不知道自己在做什么的时候我在做的事。
——布劳恩（徳裔美籍火箭科学家）
2. The saddest aspect of life right now is _______ science gathers
knowledge faster than society gathers wisdom. (Isaac Asimov)
that
as though because that what whoever why
Practice and Apply
当下生活最可悲的一面就是科学积累知识的速度超过了社会积累智慧的速度。——艾萨克·阿西莫夫
（美国科幻小说作家、化学家）
3. An expert can be _________ has made all the mistakes that can
be made in a very narrow field. (Niles Bohr)
whoever
as though because that what whoever why
Practice and Apply
专家可能是在一个非常狭窄的领域里犯了所有可能犯的错误的人。
——尼耳斯·玻尔 （丹麦物理学家）
4. When different experiments give you the same result, it is no longer subject to your opinion. That’s the good thing about science: It is true whether or not you believe in it. That’s _________ it works. (Neil deGrasse Tyson)
why
as though because that what whoever why
Practice and Apply
当不同的实验呈现出相同的结果时，它就不再受制于你的意见。这就是科学的好处: 不管你信不信它都是真的。这就是科学工作的原理。
——奈尔·德葛拉司·泰森 （美国天文学家）
5. This applied science, which saves work and makes life easier, brings us little happiness. That is _________ we have not yet learnt to make sensible use of it! (Albert Einstein)
because
as though because that what whoever why
Practice and Apply
这种节约工作量，使生活更容易的应用科学，给我们带来的快乐很少。那是因为我们还没有学会合理地利用它!
—— 爱因斯坦
6. There are only two ways to live your life. One is ____________ nothing is a miracle. The other is ____________ everything is a miracle. (Albert Einstein)
as though
as though
as though because that what whoever why
Practice and Apply
你的生活只有两种方式。一种是好像什么都不是奇迹。另一种是好像一切都是奇迹。
—— 爱因斯坦
1. David is talking to Maria about their scientific research project. First complete David's lines (A-E), using the words in the box. Then put David's lines in the correct order. (P5)
as if that what who when how why whose which whether
A: Absolutely ! You may not believe it, but that was
___________happened at the initial stage of our group's research
on developing a vaccine for malaria.
B: Yes, it is. And it seemed __________the theories were useful, but
the fact was_________ we couldn’t persuade one another that one
theory was better than another.
what
as if
that
宾从
C: Exactly. The problem was not about ______________all our theories
were equally good, but in deciding _______________________theory
to depend upon.
D: We realized that what we cared about was not _______________
aspect we needed to develop a theory in, but rather _____ we
can reduce the cost of a vaccine without reducing its effect!
E: You're right. At last, we became focused on the key issue, which was _________we had to carry out the research in the first place.
whether
which/what/whose
which/what
how
why
主从
Maria: This mix of theory and data is one of the key characteristics of what we call science.
David: _________________
Maria: With your theoretical framework
David:__________________
Maria: Deciding on a theory is definitely of critical importance.
David: _________________
Maria This was when you should have calmed down and got down to doing some solid work.
David: _________________
Maria: So what happened in the end
David: _________________
B
C
E
D
A
宾从
of+抽象n.=adj.
1. The fact was .
事实是他没有做真正的努力。
2. The question is .
问题是这部电影是否值得看。
3. she had known Millie for years.
看起来好像她认识米莉已有好多年了。
4. My advice is as often
as possible. 我的建议是你尽可能经常地练习说英语。
2. Complete the sentences.
that he didn't really try
whether the film is worth seeing
It seemed as though/if
that you (should) practise speaking English
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。
7. That is .
那就是我想让你在这儿工作的原因。
8. I was late for school this morning.
last night.
今天早上我上学迟到了。那是因为我昨晚睡得太晚了。
where I first met her
who is really fit for the hard job
why I want you to work here
That's because I stayed up too late
Everyone knew 1. Wendy was a famous writer, but no one knew 2. she came from and 3. she was born in 1961 was still a mystery. 4. they did know was
5. she was loved by poor people because she always helped
6. was in need of money. Wendy was generous and helpful，but some people thought she was chasing fame. Wendy said she didn't understand 7. they were so narrow-minded，but it didn't matter 8. others thought of her. She just wanted to do 9.______
she thought was right. She thought that was 10. the meaning of life lied.
3. Fill in the blanks.
that
where
whether
What
that
whoever
why
what
what(ever)
where
when
where
why
how
what/whatever
which/whichever
who/whoever
whom,whose...
that,whether
as if/as though
because
Summary
单/击/此/处/添/加/副/标/题
Thanks