2021-2022学年人教版九年级英语全册Unit6 Section A(1a-2d)课件（17张PPT）

(共17张PPT)
Unit6 When was it invented
Section A (1a-2d)
Four great inventions in China
paper-making
printing
gunpowder
compass
Chinese invented the four great inventions.
The four great inventions ________________Chinese .
were invented by
paper-making
Cai Lun
eastern Han
printing
Bi Sheng
Song
gunpowder
Chinese
Tang
compass
Chinese
Warring
States Period
When was ... invented
Who was ... invented by
What is ... used for ...
It was invented in ... .
It was invented by ... .
It is used for ... .
What are these inventions
Who was the ... invented by
Guessing Game
Karl Benz
Bell
J. L. Baird
John Atanasoff
telephone
car
television
computer
It was invented by ... .
When were they invented
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
A: I think the ... was invented
before/after the ... .
B: Well, I agree with ... . Besides,
I think the ... was invented
before/after the ... .
C: Well, I don't think so. I think ...
was invented before/after the ... .
Listen and match the inventions with the years.
______ 1876
______ 1885
______ 1927
______ 1971
d
a
c
b
1a
1b
1b
a. need to take a history class b. My family had a car.
c. have modern inventions d. were invented
e. couldn’t afford one.
Alice: Was your life very difficult when you were a kid
Grandma: Oh, not really. Why
Alice: Well, you didn’t ___________ like a telephone, right
Grandma: Of course we did! How old do you think I am The
telephone was invented in 1876. You _________, Alice!
Alice: Ha, ha! How about cars They weren’t invented yet, were they
Grandma: Yes, they were. Cars were invented in 1885.__________.
Alice: Well, did you have a TV
Grandma: No, we _________. They were expensive in those days. The TV was invented around 1927, I think.
Alice: Well, I know that you didn’t have a computer because we learned in school that personal computers _________in 1971.
Grandma: You’re right. But I have one now!
c
a
b
e
d
Pairwork
A: When was the …invented
B: It was invented in …
A: Who was it invented by
B: It was invented by…
A: Do you know what it is used for
B: It is used for ...
Karl Benz
in 1885
in 1971
John Atanasoff
in 1876
Bell
J. L. Baird
in 1927
in 1839
Luis
washing hair
skating
running
magic inventions
What are they used for
shoes with lights
shoes with special heels
raising or lowering
moving up and down
ice-cream scoop
serving something cold
seeing in the dark
magic inventions
What are they used for
Listen and number the inventions [1-3] in the order you hear them.
1
3
2
1b
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
n. 样式; 款式
2b
The first invention is shoes with ________. People always hit their toes against __________ on the way to the bathroom at night. So people can use them for ________ in the ______.
Listen again and 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.
The last invention is shoes with special _____. People can move the heels _____ and ______. You can _____ the heels if you are going to a party or ______ them if you are just going out for shopping.
scoop
electricity
used
cold
heels
up
down
raise
lower
Have you ever thought of inventing anything by yourself
to make your life easier
Creative designer
What do you think is very interesting to invent
Why do you want to invent it
Can you draw it and tell us what it looks like
What can it be used for？
Report: I want to invent this kind of machine. Because I am lazy.I don't want to get up early every morning. If the alarm o'clock goes off, we can be woken up by its mechanical (机械的）arm. So it can be used for waking me up.
There are no problems---
only opportunities
to be creative.
Small inventions can really change the world!
What small inventions can you think of
2d
Read 2d and answer the following questions .
1. when was the zipper invented
In 1893.
2. Was the zipper used widely in 1893
No, it wasn’t.
3. Where can we see zippers
We can see zippers on dresses,trousers,shoes,bags…almost
everywhere!