Unit 9 When was it invented ？ （Section A 1a-2c）

(共31张PPT)
Section A
Museum
Invention Museum
How much is it
18
How much is it
Rule
Only one group that gets the most
scores(分数)can enter the museum.
Guessing: What is it
Guessing: What is it
Guessing: What is it
Microwave oven
It is used for cooking and heating food
(加热)
What food can be heated in it
What is it used for
It is used for counting.
calculator
What are they used for
They are used for giving light.
light bulbs
What is/are … used for
It’s/They’re … used for…
alarm clock
It’s an annoying invention.
Because it wakes me up when I’m sleeping.
I think computer is the most
helpful invention. Because it helps
me search the information that I
need.
A survey:
What do you think is the most
helpful/annoying inventions
Name Helpful
inventions Why Annoying inventions why
Useful expressions:
A: What do you think is the most
helpful/annoying invention
B: I think the most helpful invention
is…
A: Why is that
B: Well, it gives/helps people…
Who was (telephone) invented by
It was invented by Bell.
Henry Ford
Edison
Bell
Ts’ai Lun
Wright brothers
fisher
inventors
inventions
Papermaking
Plane
Washing machine
Light bulb
Car
Telephone
1976
1971
1976
1927
1885
When was it invented
1b
Listen and match the inventions
with the dates.
a
b
e
d
c
1876
1885
1927
1971
1976
d
a
b
e
c
1876
1885
1927
1971
1976
When was the car invented
It was invented in 1885.
Group work:
What When Who Be used for
Printing Tang Dynasty
朝代 Chinese Making copies
battery-operated
slippers
heated
ice cream scoop
shoes with adjustable heels
电池供电
的拖鞋
加热的
冰激凌勺
可调节
后跟的鞋
2a
Listen and number the inventions in
the order that you hear.
3
1
2
2b Listen again. Match the inventions with their inventors and uses.
Invention
shoes with adjustable heels
battery-operated slippers
heated ice cream scoop
Who was it/ were they invented by
Chelsea Lanmon
Jayce Coziar and Jamie Ellsworth
Julie Thompson
What is it/ are they used for
scooping really cold ice cream
seeing in the dark
changing the style of the shoes
music candle
activity glasses
temperature cup
Try to be an inventor!
Welcome !
The passive voice.
被动语态
被动语态的构成:
be动词+ (及物动词的) 过去分词
一般现在时
一般过去时
am (is, are) + done
was (were) + done
{
Homework:
Describe one of your inventions
And then write it down.