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(共23张PPT)
Unit1 Science and Scientists
Predicative Clauses
表语从句
Learning objectives:
In this class, you will:
1. know about the usage of predicative clause.
2. use predicative clauses to make sentence.
I am a teacher.
I am ten.
He became rich and successful.
Everyone is here.
They are at home now.
My job is to teach them English.
The fact is that he passed the exam.
名词
数词
形容词
副词
介词短语
不定式
从句
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。
表语的概念
①What John Snow showed to the world was how cholera could be overcome.
②The exact places Snow marked on the map were where all those who died had lived.
③Snow’s finding was that the pump water carried cholera germs.
表语从句的概念
系动词
表语从句
系动词
表语从句
表语从句
系动词
在复合句中，位于_________之后，充当________的名词性从句称作表语从句。
表语
系动词
可以接表语从句的系动词有:
be动词: am is are;
感官动词：look，feel, sound, taste, smell;
表象系动词：seem（仿佛）, appear（似乎）
持续性动词：remain, keep, stay;
变化系动词：become, get, grow, turn, go, come, run, fall;
终止系动词：prove（证明是）, turn out（结果是）
表语从句的概念
表语从句的语序
The question is how (can I / I can ) make you understand the knowledge.
表语从句和宾语从句、主语从句一样，要用陈述语序：主语+谓语。
√
The fact is that he was lying.
His suggestion is that we should tell him.
引导词 用法
连词 that 在从句中不充当成分，无意义
whether 在从句中不充当成分，意为“是否”
连接代词 what(ever),which(ever),who(ever),whom(ever), whose 在从句中充当主语，宾语，定语
连接副词 how,when,where,why 在从句中充当状语
其它连词 because, as if, as though 在从句中不充当成分，意为“因为，好像，似乎”
表语从句的引导词
一、that 引导的表语从句
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 fact is that he was lying.
The reason is that they never give up.
His suggestion is that we should tell him.
One idea is that fish is the best brain food.
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
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__________________,意思为_________.
系动词
后面
似乎
五、as if / as though 引导的表语从句
1. It sounds as if someone ___ knocking at the door.
2. Tom likes to talk big as if he ______ 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 if he ________ say something.
(对将来的虚拟，用would/could/might+do)
4. He talked about Rome as if he ___________ there.
(对过去的虚拟，用had done)
(与事实相符, 用一般现在时)
is
were
would
had been
总结：as if/as though 引导从句的虚拟语气：
若跟现在事实不符：过去式（be动词用were）
若跟将来事实不符：would/could+动词原形
若跟过去事实不符：had done
六、because引导的表语从句
That's because we never thought of it.
She hasn’t come. This is because she is ill.
Because 引导的表语从句，在从句中______成分，意为______.
常用于句型： This/That/It is/was because +原因： 那是因为…
不充当
因为
I think that’s _____ he was so angry.
why
The rain is too heavy. That is _________ I got wet.
why
区分句型： This/That/It is/was why +结果： 那就是为什么…
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
1. My suggestion is that we ____________ (go) and help him.
2. 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
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
whether
that
see
即学即练
改错
即学即练
1. The problem is ____ we can get the things we need.
2. To help Africa achieve sustainable development is _____ matters in the long run.
3. What I told him was ____ I would find him a good play.
4. That is _____ I want to tell you.
5. That is ____ she failed to pass the exam.
how
what
that
what
why
即学即练
My suggestion is that we __________ (go) to hospital at once.
When a pencil is partly in a glass of water, it looks as if it _______(be) broken.
My idea is that we ___________(get) more people to attend the conference.
The little girl appeared as if she ___________(be) a grown-up.
She looks as if she _________(be) ten years younger.
(should) go
were
(should) get
had been
were
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。
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
语法填空
The fact is 1. Wendy was a famous writer，but no one knew 2.____ she came from and the question remained 3._________she was born in 1961.4. _____ they did know was 5. she was loved by poor people because she always helped 6. was in need of money. Despite this，some people thought she was chasing fame. Why they were so narrow-minded was 7.______ Wendy couldn’t understand，but it seemed as if she didn’t care.The most important was 8. she just wanted to do
9. she thought was right. She thought that was
10. the meaning of life lay.
that
where
whether
What
that
whoever
what
that
what(ever)
where
THANKS
THANKS
感谢观看

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