人教版九年级全册Unit 6 When was it invented? Section A 1a--2d 课件(共36张PPT，含内嵌音频)

(共36张PPT)
Section A (1a-2d)
学练优九年级英语（RJ）
教学课件
Unit 6
When was it invented
Words and phrases:
heel, scoop, electricity, style, project, pleasure, zipper,
daily, website, pioneer, list, mention, ruler, boil, remain, smell, saint, national, trade, popularity, doubt, have a point, by accident, take place, without doubt.
Sentences:
1.—When was the telephone invented
— I think it was invented in 1876.
2.—What are they used for
—They are used for…
Passive voice (past tense)
Learning goals
提到；说到
项目；工程
样式；款式
高兴；愉快
每日的；日常的
网站
列表；列清单
先锋；先驱
Can you say these words
Game
先锋；先驱
煮沸；烧开
统治者
保持不变
疑惑；疑问
贸易；交易
气味
国家的
Match and read the words！
Matching
trade
smell
boil
remain
ruler
doubt
pioneer
national
What are the Four Great Inventions
in ancient China
Do you know
Lead in
car
calculator
laptop
telephone
cell phone
radio
A: I think the TV was invented
before the car.
B: Well, I think the TV was
invented after the car.
Talk about with your partner.
A: I think the calculator was invented
before the computer.
B: Well, I think the calculator was
invented after the computer.
Talk about with your partner.
Chinese four great ancient inventions
compass
gun powder
printing
Paper making
Modern inventions
calculator
Talk about the inventions(发明).
Which one do you think is the most helpful in our daily life
computer
Look at the things below. In what order do you think they were invented Discuss them with your group. Then number them [1-4](1=first,4=last)
1
2
3
4
Presentation
Listen and match the inventions with the years.
a
b
c
d
When was the
...invented
1876
1885
1927
1971
a
c
b
d
1b
Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again.
When was the telephone invented
I think it was invented in 1876.
1c
Practice
When was the car invented
It was invented in 1885.
When was the TV invented
It was invented in 1927.
When was the computer invented
It was invented in 1971.
Listen and number the inventions[1-3] in the order you hear them.
3
1
2
___ shoes with
special heels
___ shoes
with lights
___ hot ice-cream
scoop runs on
electricity
2a
Invention What is it / are they used for
shoes with special heels ________ the style of the shoes
shoes with lights
seeing ___________
hot ice-cream scoop ________ really cold ice-cream
Listen again and complete the chart.
changing
serving
in the dark
2b
Make conversations using the information in 2b.
What are the shoes with lights used for
They’re used for seeing in the dark.
2c
What are hot ice-cream scoop used for
They’re used for serving for really cold ice-cream.
What are shoes with special heels used for
They’re used for changing the style of the shoes.
Role-play the conversation.
Read the passage quickly and answer the questions.
What is the subject for their school project
2. What kind of invention does Roy think of
Small inventions that changed the world.
The zipper.
2d
3. Why does Roy think it is a great invention
4. Who and when was the zipper invented
5. When did the zipper become popular
Because it is often used in our daily lives.
Whitcomb Judson in 1893.
Around 1917.
Year Invention Inventor(s)
1902 Air conditioner Willis Carrie
1903 Gas-motored and manned plane Wright brothers
1910 The first talking film Thomas Edison
1923 Television Logie Baird
1928 Penicillin (青霉素) Alexander Fleming
1937 Photocopier (影印机) Chester F Carlson
1940 Colour television Peter Goldmark
1942 Electric digital computer American scientists
1945 Atomic bomb American scientists
1950 Credit cards Ralph Schneider
1985 Windows OS Microsoft Company
1990 World Wide Web Tim Berners-Lee
1. Well, you do seem to have a point…have a point 有道理
e.g. I admit (that) you have a point.我承认你有理。
Language Points
2. They are used for seeing in the dark.
be used for doing sth.表示“被用来做某事”。与be used to do sth. 同义。表示用途、目的。
e.g. This computer is used to control all the machines. 这台 电脑是用来控制所有机器的。
Do you know what this tool is used for
你知道这个工具是用来做什么的
3. Think about how often it’s used in our daily lives.
think about 表示“考虑，想起”。
e.g. He is thinking about travelling in the summer holidays.
他正在考虑暑假旅游的事。
She was thinking about her childhood
days. 她正回想她的童年时期。
【拓展】有关think的短语
think of 指“考虑, 记忆, 记起” I can’t think of his name at the moment. 我一时想不起他的名字。
think sth. over 指“仔细想, 审慎思考, 作进一步考虑” Please think over what I said. 请仔细考虑我说的话。
think sth. out 指“想通, 想出, 熟思” He thought out a new idea. 他想出了一个新主意。
Summary
Talked about the invented time, inventors and the usage of some inventions.
Used the Passive Voice (past tense) to talk about the history of some inventions.
1.用所给单词的正确形式填空：
When the telephone (invent)
The computer can us do math problems (help).
3. In those day, the woman couldn't (afford) a TV because they were really expensive.
4. A friend of (I) came to see me last week.
5. I think you need (take) a history class.
invented
was
help
Exercises
afford
mine
to take
2.单项选择
( ) 1. The kind of cup is used _______ drinking.
A. to B. as C. by D. for
( ) 2. My mother and my sister kept on talking, but my father ________ silent all the time.
A. got B. kept C. turned D. looked
( )3.I think the short story ______by Lu Xun.
A. is writing B. is written C. written D. was written
( )4.—Who _____ the electric lightlamp_____ —Edison.
A. was; invented B. is; invented
C. was; invented by D. did; invented by
D
B
D
C
Homework
Preview the passage in 3a.
Look up some information about some famous inventions.
Thank you. Bye-bye!