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Unit4 Amazing Science
Topic1 When was it invented Section A
前置性测试题
用适当形式填空
We should tell our daughter not to speak to the ______(stranger).
There must be _____(silent) in the library.
The big cake is_______(divide) into eight pieces.
It is a good habit to stick to_______(keep) a diary.
Teaching aims:
Knowledge aim:
Master the new words and key phrases.
Learn the passive voice of simple past.
Ability aim:
Improve listening and speaking ability.
Emotional aim:
Enable to become more interested in science and technology.
Important and difficult language points:
1. Key points:
Words and phrases: lock, metal, be made of, be made from, be made in, be used for, be allowed to do sth.
Sentences:What’s it made of
It’s made from wood.
What’s it used for
It’s used for locking the door.
I wish I could go into space some day.
I hope your dream will come true.
Grammar: was/were +pp
2. Difficult points：
be made of和be made from的用法辨析。
I wish I could go into space some day.
It’s used for writing on .
Teaching procedures：
Step1. Review：Change the following sentences into passive voice.
many people use computer
Jim cleans the door everyday
Step2. Sum up the usage of simple past tense of the passive voice
Step3. Lead to 1a
let the students read 1a by themselves.
read 1a again，find out the key points.
Step4. Discussion
discuss 1a in groups
discuss the following phrases
allow sb. to do sth.
allow doing sth.
be allowed to do sth.
be used for doing
used to do sth. ；be used as ；be used by ；
used to doing sth, be used to do sth.
some day；one day
Step5. Explain some difficult points
Step6. Listen to 3a. Finish the table then check the answers.
反馈性测试题
1.My mother allows 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. Maybe he is an inventor. (改为同义句)
He ____ ____ an inventor.
Step7. Homework
Memorize the useful expressions and key sentences .
Read 1a.
Finish Section A in your workbook.
Preview Section B.
Blackboard writing
Section A
Key words：
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
Key phrases
be made of 由某种物质做成(看得出原材料，物理过程)
be made from 由某种物质制成(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
Back of teaching(共22张PPT)
Unit 4 Amazing Science
Topic 1 When was it invented
Section A
Learning aims:
Knowledge aim:
Master the new words and key phrases.
rocket, metal, satellite, spaceship, lock,
laptop, digital
Ability aim:
Improve listening and speaking ability.
Emotional aim:
Enable to become more interested in science and technology.
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
key points
allow sb. to do sth. 允许某人做某事
be not allowed to do 不被允许做某事
last night 昨晚 be bad for 对......有害
spend too much time on sth./ (in) doing sth.
花费太多时间在某事上/ 做某事
be made by 被......制作
be made of 由......制成
be used for doing sth.= be used to do被用来做某事
some day 某一天
come true 实现 one’s dream come true
sb realize one’s dream
Pair work
1. Translate 1a with your deskmate.
2. Answer the questions in 1c.
Why is Jane unhappy
Because Jane was not allowed to play computer games last night.
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
be made of 由某种物质做成(看得出原材料，物理过程)
be made from 由某种物质制成(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
made in China/Korea
be made by 由/被某人制造
be made into 被制成......wood can be made into paper.
1
2
Language points
our class is made up of 16groups.
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.
too tired
headache
sore eyes
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 (teach)Kangkang some knowledge 知识 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的用法你还记得吗？（过去/将来的某一天）
e.g. I wish I could have my own house some day.
one day, I came cross (met)a dog on the street.
难点：come true----变成真的,实现（主语是梦想dream等）
realize/achieve主语是人
one’s dream come true
=sb. +realize/achieve opne’s dream
achieve+result/goal
be made of 由某种物质做成(看得出原材料，物理过程)
be made from 由某种物质制成(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
made in China/Korea
be made by 由/被某人制造
be made into 被制成......wood can be made into paper.
1
2
Language points
our class is made up of 16groups.
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
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.
write on the paper
paper/wood
computer desk /wood/
hold容纳，装 the computer
chopsticks/bamboo/eating with
复数
sweater /cotton/keeping warm
毛衣 棉花 保暖
watch/metal/giving us time
手表 金属
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 材料
Usage 用途
Year 年份
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.
v. 研发
Example:
Focus on the meaning in communication. Don’t be afraid of making mistakes.
Change the following sentences.
1.My mother allows 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. Maybe he is an inventor. (改为同义句)
He ____ ____ an inventor.
was/were + 过分
be invented be developed
am allowed to
What is
used for
When was
invented
may be
Exercises
Exercise
1. Trees __________ (water) in our school every
three days.
2. The zoo ___________ (visit) by lots of children
on weekends.
3. A Journey to West ________ (show) on CCTV
every summer.
4.On Christmas Day, children wake up early
and can’t wait ______ (open) the boxes of
presents.
5. We’ll have a chance _____ (see) the flower
show this weekend.
to open
is shown
are watered
to see
is visited
Assignment
Read 1a.
Memorize the useful expressions and key sentences that we learn today.
Finish Section A in your workbook.
Preview Section B.
1. 先做练习册，待会讲。
2.写书面作业（课本82页第2题）.
写两个例子+任选一个物品。
（lock, paper+下方任选一个）
Thank You !

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