Unit 4 Topic1 When was it invented.SectionA课件（24张，无素材）

is spoken by
She speaks Chinese.
is spoken by
He speaks English.
English
English.
He
him.
Chinese
Chinese.
She
her.
被动语态(Passive Voice ) be + done
主动语态： 主语 + 动词 + 宾语
被动语态： 主语 + be + 过去分词 + by + 宾语
1.Many people use computers.
Computers _____ ________
by _______ _________.
2.They plant trees in the garden.
Trees _____ _______ in the
garden ____ them.
are used
many people
are planted
by
3.Lots of foreigners enjoy Beijing Opera.
Beijing Opera_______________________
is enjoyed by lots of foreigners.
4.Many visitors visit the Great Wall every year.
The Great Wall _____________________________
is visited by many visitors
every year.
change the active voice into the passive voice.
I made this model plane last night.
This model plane _____ _______
by ____last night.
Mr. Wang punished her just now.
She _____ _______ __ Mr. Wang just now.
was made
me
was punished
by
He cut down the trees yesterday.
The trees _____ _______
by ____ yesterday.
The cat ate the fish.
The fish _____ ____ __ the cat.
were cut down
him
was eaten
by
A
1.Computers are used by many people.
2.Trees are planted in the garden by them.
3.Beijing Opera is enjoyed by lots of foreiners.
4.The Great Wall is visited by many visitors every ear.
1. This model plane was made by me last night.
2.She was punished by Mr. Wang.
3.The trees were cut down by him yesterday.
4.The fish was eaten by the cat.
A
1.Computers are used by many people.
2.Trees are planted in the garden by them.
3.Beijing Opera is enjoyed by lots of foreiners.
4.The Great Wall is visited by many visitors every ear.

A
1.Computers are used by many people.
2.Trees are planted in the garden by them.
3.Beijing Opera is enjoyed by lots of foreiners.
4.The Great Wall is visited by many visitors every ear.
A
A: What’s the lock made of?
B: It’s made of metal.
A: What’s it used for?
B: It’s used for locking the door.
n.锁 v.（用锁）锁上，被锁住
2 Follow the example to make up similar conversations.
lock/metal
A: What’s the paper made from?
B: It’s made from wood.
A: What’s it used for?
B: It’s used for writing on.
paper/wood
be made of 由……做成(看得出原材料，物理过程)
be made from 由……制成(看不出原材料，化学过程)
be made up of 由几部分组成
be made in 在某地/某时制造
be made by 由某人制造
be made into 被制成
1
2
computer desk /wood
chopsticks/bamboo
sweater /cotton
watch/metal
rocket
[?r?k?t]
satellite
[?s?t?la?t]
spaceship
[?spe?s??p]
1b Listen to 1a and mark T (True) or F (False).
Jane is unhappy because she was not allowed to go to a party last night.( )
Kangkang’s father made a model rocket for him. ( )
The rocket is made of metal. ( )
A rocket is used for sending satellites or spaceships into space. ( )
F
F
T
T
allow v. 允许
1. allow sb. to do sth. 允许某人做某事
2. allow doing sth. 允许做某事
3. be allowed to do sth. 被允许做某事
1c Read 1a and answer the following questions.
1. Why did Kankang ask Jane not to spend too much time on computer games ?
It’s bad for her health if she spends too much time on them.
spend…+on sth.
spend…+(in) doing sth.
2. What’s a rocket used for?
It’s used for sending satellites or spaceships into space .
be used for 被用来做
be used to do 被用来做
be used as 被用作
used to do sth. 过去常做
be used to doing sth. 习惯于做
3. Who taught Kangkang some knowledge about spaceships?
Mr. Brown.
4. What’s Kangkang’s dream?
He wishes he could go into space some day.
some day----某一天，总有一天(将来)
one day (将来或过去）某/有一天
I hope his dream will come true .
wish 表示祝愿、愿望(不太可能实现）; hope 希望(可能性大)
wish +(that)从句 hope+(that)从句
wish sb. to do sth. hope to do sth.
3a A. Listen to the conversations and number the following pictures.
2
3
1
3a B. Listen again and complete the table .
Invention
Item
laptop
cell phone
digital camera
Material
Usage
Year
country
plastic
plastic
metal and plastic
study, work and play
communicate
take photos
around 1985
1973
around 1975
Japan
America
America
3b Work in pairs. Ask and answer questions based on the table in 3a with passive voice.
A: What is a laptop made of?
B: It is made of plastic.
A: What’s it used for?
B: It is used for studying.
A: When and where was it developed?
B: It was developed in Japan in 1985.
Example:
Focus on the meaning in communication. Don’t be afraid of making mistakes.
Change the following sentences.
1.My mother allowed me to use her cellphone.(改为被动语态)
I _____ ______ _____ use my mother’s cellphone.
2.A rocket is used for launching satellites and spaceships.
(就画线部分提问)
____ ___ a rocket ___ ___?
3.The digital camera was invented in 1975. (就划线部分提问)
____ ____ the digital camera _______ ?
4. 他花了两天时间做这个模型飞机 . (完成句子)
He ____ two days ____ this model plane.
was allowed to
What is
used for
When was
invented
spent on
Summary
We learn: 1.Some words:
lock, , metal,rocket, satellite, spaceship
2. Some phrases:
be made of, be made from,be used for,
some day, come true
3. Some sentences:
(1) I wish I could go into space some day.
(2) I hope your dream will come true.
(3) -What is a rocket used for?
-It’s used for sending satellites or
spaceships into space.
We can: Use the passive voice.
1.Read 1a.
2.Memorize the useful expressions and key sentences that we learn today.
3.Finish Section A in your workbook.
4.Preview Section B.
Thanks!