(共23张PPT)
When was it invented
( Period 1)
Unit 9
health
friends
money
family
study
life
inventions
What else do we need in our life
food
jobs
happiness
导言
人类的每一次改革都是社会前进的步伐，每一次思想的升华都越来越接近文明。发明使人类由黑暗走向光明。正因为如此，社会离不开发明。让我们一起走向发明的前源吧。
paper making
It was invented during
the Han Dynasty.
printing
It was invented during
the Song Dynasty.
gun powder
It was invented during
the Tang Dynasty.
compass指南针、罗盘
It was invented during the Warring States.
The four ancient inventions make China stronger.
Many modern inventions have changed
the world a lot.
What is he doing
He’s ___________
_______________.
What do you think a telephone is used for
A telephone is used for talking with people.
making a
telephone call.
be used for + (doing) sth.
telephone
car
TV set
computer
calculator
What are they used for
inventions
inventor n. 发明家
eg: Edison is a famous inventor.
invent v. 发明
eg: Do you know who invent paper
invention n. 发明
eg: The car is a great invention.
be invented 被发明
eg: The light bulb was invented
by Edison.
Edison
When was the telephone invented
Who was the telephone invented by
The Great Inventions
It was invented in 1876.
It was invented by Bell.
A: I think the computer is the newest.
B: I think the telephone was invented
before the car.
C: Well, I think the telephone was
invented after the car.
GROUPWORK:
In what order do you think they were invented
Report: In our group, we think the … is the first invention, … is the second invention…
listen and match the inventions and the dates.
_____ 1876
_____ 1885
_____ 1927
_____ 1971
_____ 1976
d
a
e
c
b
1b
G: Life must have been difficult when you were a kid.
W: Oh, not really. Why do you say that
G: Well, you didn’t have many modern inventions. Like, you ...
W: Of course we did! How old do you think I am ____1____.
G: How about cars I bet cars weren’t invented yet.
W: Sure they were. ____2____. My family ...
G: Ha, ha! Well, did you have a TV
W: No, we didn’t. ____3____, I think. Some friends of mine ...
G: And I bet you... We learned in school that hand-held ____4____ and ____5____.
W: You’re right. I didn’t have those things when I was young. But I do now!
1. The telephone was invented in 1876.
2. Cars were invented in 1885.
3. The TV was invented around 1927.
4. Calculators were invented in 1971.
5. Personal computers were invented in 1976.
A: When was the … invented
B: It was invented in _____.
1976
1927
1876
1885
1971
Baird (约翰·贝尔德 )
Bell (亚历山大·贝尔 )
Wozinak and Jobs (沃兹奈克和乔布斯)
Simckley (克里夫·辛克莱)
Benz (卡尔·本茨 )
Match the inventions with the inventors.
A: What’s this in English？
B: It’s a TV.
A: When was the TV invented
B: It was invented in 1927.
A: Who was it invented by
B: It was invented by Baird.
1885
1971
1976
Wozinak and Jobs
Simckley
Baird
1927
Bell
1876
Benz
A: What’s this in English B: It’s ...
A: When was… invented B: It was invented in ...
A: Who was… invented by B: It was invented by ...
We use a telephone for talking with people.
Bell invented the telephone.
Bell invented the telephone in 1876.
A telephone is used for talking with people.
It was invented by Bell.
It was invented in 1876.
We use a telephone for talking with people.
Bell invented the telephone.
Bell invented the telephone in 1876.
A telephone is used for talking with people.
It was invented by Bell.
It was invented in 1876.
Grammar Focus
被动语态
定义: 主动语态表示主语是动作的执行者, 被动语态表示主语是动作的承受者。
We speak English.
主语
谓语
宾语
English is spoken by us.
主语
谓语
宾语
主动语态
被动语态
巧记: 宾变主, 主变宾, 前加by
动变被, 看清be, 结构be + p.p.
主变被解题步骤:
1. 找宾语 ----即动作的承受者
eg: They make shoes in that factory.
Shoes
2. 判断宾语的单复数 ----即be动词的单复数.
are
were
3. 判断动词的时态 ----即be动词的时态.
4. 修改谓语的时态 ----即原句动词改为过去分词
made
5. 修改原句的主语 ----即by+ 主语/ 宾语.
by them
in that factory.
6.其它的成分（定语、状语）不变。
√
1. People use knives for cutting things.
Knives _____ _____ for cutting things.
2. The students clean the windows of their classroom twice a month.
The windows of their classroom_____ _______ twice a month.
3. I found the ticket on the floor .
_____ ______ ______ ______ on the floor.
4. I told her to return the book in time.
She _____ ______ to return the book in time.
5. Now people can use computers to help them.
Now computers _____ _____ ______ to help them.
are used
are cleaned
(变被动语态）
The ticket was found
was told
can be used
Exercise:
Summary
1. Key vocabulary:
invent, calculator, be used for
2. Target language:
What is a telephone used for
It’s used for talking with people.
When was the telephone invented
It was invented in 1876.
Who was it invented by
It was invented by Bell.
3. The Passive Voice
Find out the information about them and write down the sentences with Passive Voice like:
gun powder
paper making
printing
compass
… was invented in … It was invented by… It’s used for …
Four Great Inventions of China
