人教版（2019）必修第一册Unit 4 Natural Disasters Discovering Useful Structures 课件(共23张PPT)

(共23张PPT)
Attributive clause
定语从句的定义：
在复合句中，修饰名词或代词的从句叫定语从句，定语从句相当形容词的作用在句中作定语。
The boy who is brave and clever is Tom.
主句
定语从句
先行词
关系词
The boy is Tom.
Tom is brave and clever.
Activity 1 Find the Main sentences and clauses
I went to Wuzhen which is a beautiful town.
The food which is not so spicy is delicious.
Liu Ruoying who is a star loves it too.
Main sentences:
I went to Wuzhen.
The food is delicious.
Attributive /Relative clause
Liu Ruoying loves it too.
I went to Wuzhen which is a beautiful town.
The food which is not so spicy is delicious.
Liu Ruoying who is a star loves it too.
I went to Wuzhen
The food
Liu Ruoying
( )
( )
( )
( )
( )
Join the following sentences:
A plane is a machine. The machine can fly.
A plane is can fly.
关系代词的实质
a machine
the machine
Join the following sentences:
A plane is a machine. The machine can fly.
A plane is can fly.
关系代词的实质
a machine
that /which
1.连接从句
2.指代先行词
3.在从句中充当一个句子成分
Taylor Swift is a famous singer.
Taylor Swift sings the song love story.
Taylor Swift is a famous singer who
sings the song love story.
Tom is a handsome guy.
Tom is working happily.
Tom is a handsome guy who is
working happily.
I have read the newspaper.
It carries the important news.
I have read the newspaper which carries the
important news.
I showed him the letter.
I received it this morning.
I showed him the letter (which) I received this morning.
It was felt in Beijing, ____________________________________.
Some sentences with attributive clause in the text
A huge crack ____________ ______________________________ cut across houses, roads and canals.
that was eight kilometers long and thirty meters wide
which is more than two hundred kilometres away
1.定义：
在复合句中修饰名词或代词的从句
2.先行词：
被修饰的名词,代词
关系代词、关系副词：
3.引导定语从句的词
关系代词：
关系副词：
when, where, why
who, whom, whose, which, that ,as
定语从句的相关概念
There was an earthquake which happened in Tangshan in 1976.
关系代词的用法
关系代词在从句中：
指人 指物 subject (主语) object (宾语) attribute（定语）
whom
who
which
that
whose
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
何时可以省略？
做宾语时可以省略
1. that在从句中作主语或宾语，指人和物。
1) A plane is a machine that can fly.
2) The noodles that I cooked were delicious.
3) Let’s ask the man that is reading the book over there.
4) The girl that we saw yesterday is Jim’s sister.
(主语)
(宾语)
(主语)
(宾语)
1. that在从句中作主语或宾语，指人和物。
1) A plane is a machine that can fly.
2) The noodles that I cooked were delicious.
3) Let’s ask the man that is reading the book over there.
4) The girl that we saw yesterday is Jim’s sister.
(主语)
(宾语)
(主语)
(宾语)
2. which在从句中作主语或宾语，指物。
They planted the trees which didn’t need much water.
2) The fish which we bought were not fresh.
3. who,whom 在从句中分别作主语和宾语
The foreigner who visited our school yesterday
is from Canada.
2)The person to whom you just talked is Mr. Li.
The person ____________ you just talked to is Mr. Li.
who/whom
4. whose 在从句中作定语，指人或物。
Miss Flower is the teacher whose house caught fire last week.
2) This is the boy whose composition the teacher talked of.
3) This is the book whose cover is blue.
Practice
Wuhan is a city ___________________
Wuhan
a city
develop fast
which /that develops fast.
Which baby is Jack
穿红裤子的baby是Jack。
The baby is Jack.
whose trousers are red
Jack
房顶是棕色的房子是我的。
The house _________________ is mine.
whose roof is brown
My house
Which house is mine
Comparison and appreciation
A report about the typhoon:
There was a typhoon in Huzhou. The typhoon was on Oct. 7th
this year. It was a strong typhoon. It stayed in Zhejiang for a
long time. It brought strong wind and heavy rain. It caused a lot
of damage.
There was a typhoon that/which attacked Huzhou on
Oct. 7th this year. It was a strong typhoon
which/that stayed in Zhejiang for a long time. It
brought strong wind and heavy rain, which caused
a lot of damage.
带定语从句的谚语：
1. God helps those who help themselves.
2. He who laughs last laughs best.
3. He who doesn’t reach the Great Wall is not a true man.
4. Friendship is like health, the value of which is seldom known until it is lost.