文档介绍：Unit 9 When was it invented?
Section A ---1
刘吉华
Class 3 Grade 3, Middle School
Go for it !
Grade 9
Four great inventions of China
gun powder
paper making
printing
compass
paper making
paper
Cai Lun invented the paper making in 105 .
invented
the paper making
in 105 .
Cai Lun
The paper making
was
by
invention
invent
inventor
Task 1: Guess: Which one was invented earlier and
which one was invented later.
A: I think the … was invented before the …
B: Well, I think the … was invented after the …
calculator
Task 2: Listen and find out the dates of the inventions.
The … was invented in …
1885
1876
1971
1976
1927
a
c
b
e
d
Do you remember?
A: When was the … invented?
B: It was invented in …
paper making
paper
-Who was the paper making invented by (in 105)?
-It was invented by Cai Lun.
The paper making was invented by Cai Lun in 105.
Task 3: Let’s guess who invented it .
A: Who was the … invented by?
B: I think it was invented by …
puter
telephone
light bulb
Steve Jobs and Steve Wozniak
Edison
Karl Benz
Bell
Task 4: Do you know what they are used for? Let’s match them to the uses!
with the person who isn’t near

food
away from the rain
us up
The … is/are used for –ing.
-What is/are the … used for?
-It is /They are used for –ing.
Task 5: Work in pairs to talk about the uses of the things around us. You can talk about the things below if you want.