(共17张PPT)
Period 1
Four great
inventions
Paper-making
（造纸术）
Compass
（指南针）
Gunpowder
（火药）
Printing
（印刷术）
（发明）
invented
were invented by
What is the paper used for
It is used for writing.
inventor
invention
Who was the paper invented by
It was invented by Cai Lun.
When was the paper invented
It was invented in the Eastern Han Dynasty.(朝代）
What is the Printing used for
It ____ _____ ____reading.
Who ____ the Printing____ ____
It ___ ____ ___Bi Sheng.
When ___the Printing ______
It ___ _______in the Nothern Song Dynasty.(朝代）
is used for
was invented by
was
invented by
was invented
was
invented
computer
TV
car
telephone
light bulb
calculator
watch movies
send emails
surf the Internet
chat with friends
look up information
…
--- They are used for sending emails / …
--- What are computers used for
play computer
games
The history of computer development
When was it invented
The calculator was invented in 1971.
The note PC was invented in 1981.
The personal computer was invented in 1976.
inventions
In what order do you think they were invented
Report: I think the … is the first invention, … is the second invention…
Listen and match the inventions with the dates.
1b
_____ 1876
_____ 1885
_____ 1927
_____ 1971
_____ 1976
Listening
Alice
____ was invented in ____.
e
a
c
b
d
Pairwork:
What When Who Be used for
Paper the Eastern Han Dynasty Cai Lun writing
Printing the Nothern Song Dynasty Bi Sheng reading
telephone 1876 Bell talking
car 1885 / driving
light bulb 1879 Edison giving light
calculator 1971 / counting
A: When was… invented B: It was invented in ...
A: Who was… invented by B: It was invented by ...
A: What is … used for B: It is used for …
1.They make the car in that factory.
2.We use computers for sending e-mails.
3.Edison invented the light bulb in 1879.
4.We planted many trees last year.
5.Parents should allow teenagers to work in groups
.
6.We must clean the room every day.
把下列句子改为被动语态
The car is made in that factory.
The light bulb was invented in 1879 by Edsion.
Many trees were planted last year.
Teenagers should be allowed to work in works.
The room must be cleaned every day.
Computers are used for sending e-mails.
The car is made in that factory.
Computers are used for sending e-mails.
The light bulb was invented in 1879 by Edsion.
Many trees were planted last year.
Teenagers should be allowed to work in works.
The room must be cleaned every day.
被动语态的构成
一般现在时被动语态构成：
一般过去时被动语态构成：
含有情态动词被动语态构成：
is/am/are+过去分词
was/were+过去分词
情态动词+be+过去分词
shoes
scoop
slippers
new inventions
heels
with adjustable
(可调节后跟的鞋)
battery-operated
(电池供电的拖鞋)
(加热的冰激凌勺)
heated ice cream
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
Crazy inventions
used for dancing
used for driving and flying
used for walking and singing
used for living and walking
used for driving in the sea
used for driving
My crazy invention
What is it
What color is it
What is it used for
What’s the price
Why do you invent it
Our crazy invention is a self-cleaning blackboard. It has two colors , black and red. It is used for writing . I invent it because I don’t want to clean the blackboard by myself. The price of it is five hundred yuan. I think it’s useful for teachers and students.
What do you think of it
Groupwork
(Four students are in a group.)
