人教版（2019）选择性必修第二册Unit 1 Science and Scientists Learning About Language表语从句课件（共23张PPT）

(共23张PPT)
Unit 1 Science and Scientists
’
Step 1 Lead-in
Making sentences according to the pictures.
His diarrhoea seems severe.
The two policies are contradictory.
This is a water pump.
His job is to handle the problem.
What do the sentences have in common in their structures
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。
His diarrhoea seems severe.
The two policies are contradictory.
This is a water pump.
His job is to handle the problem.
two contradictory theories
Theory one: __________________
caused by bad air
Theory two: __________________
caused by germs
One theory was that bad air caused the disease.
____
__
____________
主语
系动词
表语从句
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。
从句在句子中充当表语
系动词
’
Step 2 Learning Aims
1. 理解: 表语从句的结构及意义；
2. 掌握: 表语从句的连接词及使用规则；
3. 运用: 表语从句去表达自己的想法。
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Step 3 Learning
Contents
1
Link-v
2
表从引导词
3
表从的运用
系动词
1
Linking Verbs
系动词
be动词
感官类
变化类
am, is, are
look，sound，smell，taste，feel，seem
变得：become、get、turn、grow；
保持：keep、hold、stay、 stand;
仍然：remain
可以接表语从句系动词有：
从句引导词
2
1. 从属连词that引导的表语从句
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.
that 仅起_______作用，______(有/无)词义，______(是/否)充当句子成分，通常________(能/不能)省略。
无
不能
不
连接
1.从属连词whether 引导的表语从句
The question is if we can finish our work.
The question is whether the film is worth watching.
The doctor’s doubt is whether she will survive.
whether起 _________ 作用，意为“_______”，在句中_________(是/否)作成分。
(注意：if ______(能/不能)引导表语从句)。
连接
是否
不
不能
1.从属连词as if/ as though/ because 引导的表语从句
It sounds as if / though someone is knocking at the door.
She looked as if she had been hit by lightning.
It seems as if she were mad.
He did not see the film last night. That is because he had seen it before.
as if/though 在从句中________(是/否)充当成分，意为“______________”;若表语从句所述的是非真实的情况，从句用_________(主句一般现在时，从句用_________时；主句过去式，从句___________时)；because在从句中_______(是/否)充当成分，意为“______________”
不
似乎；好像
虚拟语气
一般过去
过去完成
不
因为
表语从句的虚拟语气
一坚持（insist)
二命令（order, command)
三建议（advise, suggest, propose)
四要求（ask, require, request, demand)
当主句的主语是表示建议、命令、要求等后面的表语，那么表语从句应该用虚拟语气，即谓语动词用“should + 动词原形”，should可省略。
His suggestion is that she ________________(keep) quiet.
My advice is that we _______________(ride) to the park.
(should) keep
(should) ride
2. 连接代词what(ever), which, who(ever), whom(ever), whose等引导的表语从句
My hometown is no longer what it used to be.
The problem is who we can get to replace her.
The problem is whose work is the best.
The question is what caused the accident, the poor whether or the heavy traffic
连接代词在句中起_______作用，还在从句中还充当______、______、______、_______,______(有/无)意义，________(能/不能)省略。
连接
表语
宾语
定语
主语
有
不能
3. 连接副词when, where, how, why引导的表语从句
The problem is how we can find him.
That is where I first met her.
That's why I object to the plan.
Thanksgiving is when people celebrate the harvest.
连接副词在句中起________作用,还在从句中充当_______, _______，______，_______状语，________(能/不能)省略。
连接
方式
地点
原因
时间
不能
1. My belief is ______________I will succeed by working hard.
2. The most pleasant thing of the rainy season is ________one can be
entirely free from dust.
3. The problem is ______________we can find them there.
4. You can be __________ you want to be.
5. The question is ____________ caused the accident.
6. The most important thing is ____________ responsibility it is.
7. This is ____________I don't agree with you.
8. The question is _______________we can get in touch with him.
9. That is _________ I got wet through.
whether
that
that
【即学即练】使用合适的关系词补全句子。
whoever
what
whose
why
whether/how
why
when
where
why
how
what/whatever
which/whichever
who/whoever
whom,whose...
that,whether
as if/as though
because
Summary
Test for goals
1. This is________ I want.
2. My English is limited. This is_______I hate reading English books.
3. The village is_________I used to spend my holiday
4. He is my favorite singer. It is_________ I really love the way he behaves.
5. The trouble is _______we are short of funds.
6. My problem is________coat is suitable for me.
7. I'd like to start my own business---that's________ I want to do if I had the money.
8. What I want to know is______will support me.
9. He looked _________he were ill.
10. Please put the medicine on the top of the shelf. It’s _______our children can’t reach it.
11. The problem is ________we can find to finish this task.
what
why
where
because
that
which
what
who
as if
where
who
【单句语法填空】
【高考真题我不怕】
1.［2013·安徽］From space, the earth looks blue. This is_________ about seventy-one percent of its surface is covered by water.
2.［2014·四川］Grandma pointed to the hospital and said, "That’s __________I was born．"
3.［2014·北京］The best moment for the football star was_________ he scored the winning goal.
4. [2018·江苏] By boat is the only way to get here, which is we arrived.
5.[2018·北京] This is my father has taught me —to always face difficulties and hope for the best.
6. [2021·新高考1卷] The amazing thing about the spring is ________ the colder the temperature gets, the hotter the spring!
because
where
when
how
what
that
【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
where
Assignments
1. 背表语从句的引导词用法；
2. 完成《新课程学习与测评》P11-12;
3. 完成 课时跟踪检测（三）。
Thank you!