Unit 5 What are the shirts made of? Section A Grammar Focus-4c 课件(共32张PPT)

(共32张PPT)
Section A Grammar Focus-4c
Unit 5 What are the shirts made of
Learning objects（学习目标）
By the end of the class, you will be able to:
1. learn to use passive voice (present tense).
2. learn the following key words and phrases: boss, Germany, surface, material, traffic, postman, cap, glove
Review and fill in the blanks.
1. —你的衬衫是棉制的吗？
____ your shirts _____ ____ cotton
—是的，而且它们产于美国。
Yes, they are. And they were _____ ___ the US.
2. —飞机模型是由什么制成？
______ the model plane ______ of
—它是由旧木头和玻璃制成。
It’s made of ____ _____ and ______.
made in
Are made of
What’s made
used wood glass
3. —茶产自中国哪里？
______ ___ tea _________ in China
—茶产自很多不同的地区。
It’s produced in many ________ _____.
Where is produced
different areas
4. 在杭州人们种植茶叶。
People _____ ____ in Hangzhou. Tea ___ ______
(by people) in Hangzhou.
grow tea
is grown
5. —茶是如何制成的？
_____ is tea __________
—茶树种植在山坡上。当茶叶长成后,
它们被手工采摘下来，然后送去加工。
Tea plants ____ _______ on the sides of the mountains.
When the leaves are ready, they ____ ______ by hand
and then ____ _____ for processing.
How produced
are grown
are picked
are sent
Grammar Focus
Are your shirts made of cotton Yes, they are. And they were made in the US.
What’s the model plane made of It’s made of used wood and glass.
Where is tea produced in China It’s produced in many different areas.
看句子 找规律
How is tea produced Tea plants are grown on the sides of mountains. When the leaves are ready, they are picked by hand and then are sent for processing.
Active Voice: People grow tea in Hangzhou. Passive Voice: Tea is grown (by people) in Hangzhou.
被动语态
当主语为动作的执行者时，谓语的形式为主动语态；
当主语为动作的承受者时，谓语要用被动语态。
一般现在时的被动语态
定义
eg: Many people speak English.
English is spoken by many people.
动作的执行者
动作的承受者
构成
be动词 ＋ 及物动词的过去分词
有人称、时态和数的变化
句型
1. 肯定句: 主语 + be +及物动词的过去分词+ (by…)
The news is published by the government.
2. 否定句: 主语 + be + not +及物动词的过去分词+ (by…)
The news isn’t published by the government.
3. 一般疑问句：Be + 主语 +及物动词的过去分词+
(by…)
Is the news published by the government
特殊疑问句：疑问词 + be + 主语 +及物动词的过去分词+ (by…)
When is the news published by the government
主动语态变被动语态的方法
A recorder is often used in our English class (by us).
1. 把主动语态的宾语变为被动语态的主语。
We often use a recorder in our English class.
宾语
主语
We often use a recorder in our English class.
谓语
2. 把谓语变成被动结构（ be动词+及物动词的过
去分词）。
A recorder is often used in our English class (by us).
一般现在时的被动语态
3. 把主动语态中的主语放在介词by之后作宾语，将
主格改为宾格，如主语是人称代词，一般省略。
We often use a recorder in our English class.
A recorder is often used in our English class (by us).
4. 在主动语态句中动词make、have、let、see、watch、hear、feel等后接动词不定式作宾语补足语，动词不定式不加to.但变成被动语态时后面的不定式都须加上to.
例如：
(1) The boss makes them work ten hours a day.

(2) Tom lets his little sister water flowers every
day.
→ They are made to work ten hours a day.
→ His little sister is let to water flowers every
day by Tom.
5. 如果主句中有两个宾语（间接宾语和直接
宾语），可以将其中任何一个变成被动句主语。
常用双宾语的动词：show/give/offer/send /bring/
lend/teach/buy
例如：The teacher gives the pupils some advice.
直接宾语
间接宾语
→The pupils are given some advice by the teacher.
→Some advice is given to the pupils by the teacher.
宾变主，主变宾，by短语后面跟。
谓语动词变被动，be后“动词过去分词”来使用。
被动语态的基本用法
1. 当不知道或没必要说明动作的执行者时，可以不
用by短语。
Most of his money is spent on the car.
2. 当动作的执行者是谈话的中心时，可以用by短语。
Chinese is learned by more and more foreigners.
3. 强调动作的承受者时。
A lot of trees are planted every spring.
一、把下列句子变为含被动语态的句子。
1.Mr. Li corrects the students’ homework every morning.
The students’ homework is corrected by Mr. Li every morning.
2.People play basketball all over the world.
Basketball is played by people all over the world.
主语
主语
谓语
宾语
谓语
宾语
练一练
3. We often see him help his classmates.
He is often seen to help his classmates.
4. The trees cover the whole mountain.
5. The teachers take care of the children.
The whole mountain is covered by the trees.
The children are taken care of by the teachers.
1. They grow tea plants on the sides of mountains.
(改为被动语态)
Tea plants _________ on the sides of mountains.
2. She is allowed to hang out with her friends on
weekends. (改为否定句)
She ___________ to hang out with her friends on
weekends.
are grown
isn’t allowed
二、根据要求改写句子。
3. Three quarters of the books are written in English.
(改为一般疑问句)
_____ three quarters of the books _______ in English
Are
written
4. I am given a birthday present by my parents every
year. (改为同义句)
A birthday present _______ _______ _______ _______
by my parents every year.
is given to
me
三、单项选择。
1. More trees __________ every year to make our
city greener.
A. is planted B. are planted
C. was planted D. were planted
2. I ______ TV on Sunday. But on weekdays I can’t.
A. am allowed watch B. am allowed to watch
C. allow watch D. allow to watch
3. Too much time ______ on computer games by
most teenagers every day. And their parents
are worried about their health and study.
A. spends B. is spent
C. has spent D. spending
4. Chinese ______ by more and more people
around the world.
A. is spoken B. speak
C. speaking D. spoken
4a
Complete the sentences with the correct forms of the verbs in brackets.
1. Children under 18 _______________(not allow)
to watch this show without their parents.
2. We __________(pay) by the boss on the last
Friday of each month.
are not allowed
are paid
3. A: What language __________(speak) in Germany
B: Most people speak German, but many can speak
English, too.
4. Most of the earth’s surface __________(cover) by
water.
5. The classroom _________ (clean) by the students
every day.
is spoken
is covered
is cleaned
4b
Rewrite the sentences using the passive voice.
Farmers plant the tea on the sides of mountains.
__________________________________________
__________________________________________
2. This shop uses the best materials to make dresses.
___________________________________________
___________________________________________
3. Careless driving causes many traffic accidents.
_____________________________________________
The tea is planted on the sides of mountains by
farmers.
The best materials are used by this shop to make dresses.
Many traffic accidents are caused by careless driving.
4. The postman brings letters and postcards to people’s homes.
_____________________________________________
_____________________________________________
5. Our family does not use this silver plate very often.
_____________________________________________
Letters and postcards are brought to people’s homes by the postman.
This silver plate isn’t used very often by our family.
4c
Ask five classmates about something they are wearing or have in their schoolbags. The list of words below may help you.
pencil, jacket, sweater, T-shirt,
shoes, cap, gloves, ring...
A: What’s your pencil made of B: It’s made of wood.
A: Where was it made B: It was made in Shanghai.
Summary
1. Key words: boss, Germany, surface, material, traffic,
postman, cap, glove
2. Grammar: 1) 一般现在时的被动语态的定义、构成及
句型
2) 主动语态变被动语态的方法
3) 被动语态的基本用法
Thank you!