Unit 9 When was it invented(Section A 3a--4)

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名称 Unit 9 When was it invented(Section A 3a--4)
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科目 英语
更新时间 2011-09-24 19:35:08

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(共23张PPT)
Unit 9 when was it invented
Section A 3a--4
请把下列主动句变为被动句。
1.They produced that kind of car.
2.The workers built a bridge over the river.
3.Mother tells me a story every day.
That kind of car --------- --------by them.
A bridge ----- ------ by the workers over the river.
I ---- ---- a story by Mother every day.
作业订正
New words--4
1.bulb<>电灯泡;电灯
2.light bulb<>电灯泡
3.microwave<>微波
4.microwave oven<>微波炉
Talking
By now we have learned many inventions. Let’s talk about them, OK
1876
Bell
Pairwork
telephone
When
Who
What
Talking with the people far away.
Beld
1927
Tv set
Watching and learning many things in the world.
When, who, what use
Discussion---3
1.Just now we talked some inventions. Ask you:
2.Are these inventions helpful or annoying
3.Are these inventions below helpful or annoying
light bulb
A: Is the light bulb a useful invention or annoying invention
B: I think it is a useful invention.
A: Why is it
B: Because it gives people more time to work and play every day.
alarm clock
A: Is the alarm clock a useful invention or annoying invention
B: ---------------------------------------------
A: Why
B: Because ---------------------------------
microwave oven
A: Is the microwave oven useful invention or annoying invention
B: ---------------------------------------------
A: Why
B: Because --------------------------------
3a write three helpful and annoying inventions in the chart below.
Helpful inventions Annoying inventions
names reason name reason
1.telephone Talk easily 1.alarm clock Make noise
2.pen 2.cigerrate
3. 3.
Read the model below
the model
A: What do think is the most helpful invention
B: I think the most helpful invention is the light bulb.
A: Why is that
B: Well, it gives people more time to work and play every day.
Wine, money, cigarette, camera, plane,
参 考 范 例
A: What do think is the most helpful invention
B: I think the most helpful invention is the light bulb.
A: Why is that
B: Well, it gives people more time to work and play every day.
part 4--- Choices
Imagine that you are alone on a tiny island .
What invention do you want to have Why
Fill in the chart below and talking.
Fill in the chart and classwork
name reason
1. radio Listen to music every day
2.
3.
Read the model
Class: What invention do you want to have first
Sudent A : I want to have a radio.
Class: Why is that
Sudent A : Because I could listen to music all day.
radio
boat
plane
mobile
gun
参 考 范 例
Class: What invention do you want to have first
Sudent A : I want to have a radio.
Class: Why is that
Sudent A : Because I could listen to music all day.
Explanation:
2. helpful adj. 有帮助的, 有益的
e.g. Mr. White is a very helpful man.
构词法:n + ful → adj
再如: use + ful → useful
thank + ful → thankful
beauty+ ful → beautiful
care + ful → careful
Exercises: 句型转换
1. She was seen to come out of the library by him. (变为主动语态)
He _____ _____ ______ out of the library.
2. When are trees often planted. (变为主动语态)
When ____ people often _____ ______
3. The League was founded in Guangzhou in 1922. (就画线部分提问)
______ _____ ______ ______ the League
_______
saw her come
plant trees
do
When and where was
founded
Exercises: 句型转换
4. Did the students wear the school clothes a lot (变为被动语态)
______ the school clothes ______ a lot
5. Kate took good care of the baby yesterday
evening. (变为被动语态)
The baby ______ ______ good care of
______ Kate yesterday evening.
was taken
by
Were
worn