人教版九年级全册 Unit 6 When was it invented?Section A 2a-2d 课件 (共15张PPT)

(共15张PPT)
Unit 6
When was it ivnvented
sectionA 2a-2d
Warming up
Inventions
light
air conditioner
fridge
These are well-known inventions.
Do you know any other inventions more interesting .
1. What can you see on the table
2. What is the boy doing
3. What is the girl doing
4. What is the scoop used for
5. What are the shoes used for
Pre-listening
Look at the picture and answer the questions.
heel n. 鞋跟；足跟
scoop n. 勺；铲子
electricity n. 电；电能
2a
While-listening
Listen and number the inventions [1–3] in the order you hear them.
1
2
3
2a
Inventions 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
in the dark
changing
serving
Tips：首字母快速笔记
Listen again and complete the chart below, pay attention to the structure “be used for”.
2b
While-listening
Make conversations using the information in 2b.
A: What are they used for
B: They’re used for …
2c
Invention Inventor Time Usage (用途)
light bulb Edison 1830 giving light
camera a Frenchman 1837 taking pictures
bike an Englishman 1839 riding
basketball James Naismith 1861 Playing
telephone Bell 1876 making phone calls
plane the Wright brothers 1903 traveling
computer an American 1976 getting information
the iphone Jobs 2007 talking with people
My favorite inventions!
Groupwork
Report:In my group, my favorite invention is ____. I think it is______. It was invented in_____ by ______. It’s used for _____.
Tom’s favorite invention is _____.
He thinks it is ____. It was invented in _____ by ______. It’s used for ______...….
What’s your favorite invention
When was it invented
Who was it invented by
What’s it used for
What’s this
zipper
Where can you see it
pants
bags
shoes
jackets
dresses
trousers
…
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.
2d
Paul: Hey Roy, the subject for my school project is
“Small inventions that changed the world”. Can
you help me think of an invention
Roy: With pleasure! Let me think ... hmm ... I know!
The zipper!
Paul: The zipper Is it really such a great invention
Roy: Think about how often it’s used in our daily lives.
You can see zippers on dresses, trousers, shoes,
bags ... almost everywhere!
Role-play the conversation.
2d
Paul: Well, you do seem to have a point ...
Roy : Of course! I thought about it because I saw a
website last week. The pioneers of different
inventions were listed there. For example, it
mentioned that the zipper was invented by
Whitcomb Judson in 1893. But at that time,
it wasn’t used widely.
Paul: Really So when did it become popular
Roy : Around 1917.
THANK YOU
延迟符