内容正文:
Unit 1 When was it invented?
Section A
Talk about the inventions(发明).
Which one do you think is the most helpful in our daily life?
Lead in
computer
car
calculator
laptop
telephone
cell phone
radio
Presentation
1a
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
1b Listen and match the inventions with the years.
a
b
c
d
When was the
...invented?
1876
1885
1927
1971
a
c
b
d
1c PAIRWORK
A: When was the telephone invented ?
B:I think it was invented in 1876.
2a 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
2b Listen again and complete the chart below.
shoes with special heels shoes with lights
hot ice-cream scoop
2c
Make conversations using the information in 2b.
A: What are they used for?
B: They’re used for...
Invention What is it/are they used for?
______ the style of the shoes
seeing _________
_______really cold ice-cream
2d 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?
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?
Small inventions that changed the world.
The zipper.
Because it is often used in our daily lives.
Whitcomb Judson in 1893.
Around 1917.
What will you do if you are really thirsty?
You’d like to drink these drinks.
v. 喝;饮 n. 饮料
What’s the most traditional drink in China?
Tea has a long history.
Tea was first drunk nearly
5, 000 years ago.
boiling drinking water
leaves
It smells pleasant.
It tastes delicious and …
Who was tea invented by?
It was invented by the Chinese ruler called Shen Nong.
Shen Nong
How was it invented?
boiling water over an open fire
fell into …and remaine