人教版九年级全册Unit 6 When was it invented？SectionA 1a-1d 课件(共17张PPT，无音频)

(共17张PPT)
Section A
Period 1 (1a — 2c）
What are the four great inventions of China
gunpowder
paper-making
printing
compass
Do you know what these inventions are
telephone
car
Television / TV set
Personal computer
I think the television was invented before the car.
I don’t agree with you. I think the television was invented after the car.
I think the telephone was invented before the computer.
Well, I agree with you.
Look at the things below. In what order do you think they were invented Discuss them with your group. Then number them [1-4].
1a
2
3
1
4
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.
1c
When was the telephone invented
I think it was invented in 1876.
A: When was the TV invented
B: It was invented in 1927.
A: Who was it invented by
B: It was invented by Baird.
Baird
1927
Cray 1971
1907
Wright
1885
Henry Ford
heel : shoes with special heels
scoop: hot ice-cream scoop, runs on electricity
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.
2b
changing
serving
in the dark
The first invention is shoes with ________. People always hit their toes on __________ on the way to the bathroom at night. So people can use them for ________ in the ______.
Listen and follow it, then fill in the blanks.
something
seeing
dark
lights
The second invention is a special ice-cream ______. It runs on _________ and becomes hot. It’s _____ for serving really _____ ice-cream.
scoop
electricity
used
cold
The last invention is shoes with special _____. People can move the heels _____ and ______. You can _____ the heels if you are going to a ______ or ______ them if you are just going out for _________.
heels
down
up
raise
party
lower
shopping
Make conversations using the information in 2b.
What are the shoes with lights used for
2c
They’re used for seeing in the dark.
Many important inventions have changed our lives and the world a lot . So , we must know about them better , if we work harder, we can also become the pioneers of different inventions .
We learn about many inventions.
What do you think of the inventions
Role-play the conversation.
Look at your textbook,
Listen and follow it .then work in pair.
2d
2d
Listen and Fill in the blanks .
Paul: Hey Roy, the subject for my school ________ is “Small inventions that changed the world.” Can you help me think of an ________
Roy: With________! Let me think… hmm… I know! The zipper!
Paul: The______ Is it really such a great invention
Roy: Think about how often it _______in our daily lives. You can see zippers on dresses, trousers, shoes, bags… almost everywhere!
Paul: Well, you ___seem to ___________…
project
invention
pleasure
zipper
is used
do
have a point
Roy: Of course! I thought about it because I saw a ________last week. The ________of different inventions __________there . For example, it ________that the zipper ________
by Whitcomb Judson in 1893. But at that time, it __________widely.
Paul: Really So when did it become popular
Roy: Around 1917.
website
pioneers
were listed
mentioned
was invented
wasn’t used