Unit 6 When was it invented? Section A1 ( 1a—2d )课件(共17张PPT) 人教版英语九年级全册

(共17张PPT)
Unit 6
When was it invented
Section A 1
1a~2d
人教版九年级 Go for it
Do you know what the four great inventions are
paper-making
造纸术
printing
印刷术
compass
指南针
gunpowder
火 药
Edison, a great inventor,(发明家)invented many great inventions during his life.
留声机
白炽灯
电影放映机
唱片
公用电话
电力系统
爱迪生
Look at the things below. In what order do you think they were invented Then number them [1-4].
1a
2
3
1
4
Watch and read and pay attention to passive voice (past tense).
一般过去时的被动语态：was/ were + 及物动词-ed形式
J. L. Baird
贝尔德
Karl Benz
卡尔 奔驰
Alexander Bell
亚历山大 贝尔
The first telephone
was invented (by Bell)
in 1876.
Bell invented the first
telephone in 1876.
Karl Benz invented
the first car in 1885.
The first car was invented (by Karl Benz) in 1885.
J. L. Baird invented
the first television
in 1927.
The first television
was invented
(by J. L. Baird) in 1927.
John van Neuman
invented the first
computer in 1971.
The first computer
was invented (by John van Neuman) in 1971.
约翰·冯·诺伊曼
I think the TV was invented before the car.
Well, I think the TV was invented after the car.
I think the telephone was invented before the computer.
Well, I agree with you.
I think … was invented before / after ...
Well, I …
When was the telephone invented
I think it was invented in 1876.
When was the car invented
It was invented in 1885.
When was the TV invented
It was invented in 1927.
When was the computer invented
It was invented in 1971.
John van Neuman
承受着
the first computer
the first computer
The first computer
其他
动作
执行者
in 1971.
invented
John van Neuman
观察并归纳
John van Neuman invented the first computer in 1971.
The first computer was invented (by John van Neuman) in 1971.
by John van Neuman
in 1971.
When
was
invented
was
invented
by John van Neuman

the first computer
n. 样式; 款式
铲子，勺子
电
高跟鞋
Make conversations using the information in 2b.
2c
What are hot ice-cream scoop used for
What are the shoes
with lights used for
They're used for seeing in the dark.
What are shoes with special heels used for
They're used for changing
the style of the shoes.
They're used for serving or really cold ice-cream.
1.拉链是在1893年被惠特科姆.贾德森发明的。
The zipper ___ ________ ___ Whitcomb Judson ___ 1893.
2.但是在那个时候，它还没有被广泛使用。
But ___ ____ _____, it ______ ______ widely.
3.电话是什么时候发明的？
When was the telephone in
我认为它是1876年发明的。
I think it was invented in 1876.
4. 他们是用来做什么的？
What are they used for
他们是用来在黑暗中看东西的。
They're used for seeing in the dark.
5.他们是被谁发明的？
Who were they invented
was invented by
in
at that time
wasn’t used
Read and translate.
Role-play
1. Read the dialogue aloud for a few minutes by yourself;
2. Role play in groups;
3. Role play in front of the class.
We’ll see which group does the best.
1. 靠电力运行
2. 被用来做……
3. 想出
4. 乐意效劳！
5. 如此伟大的一项发明
6. 在我们的日常生活
7. 有道理
8. 不同发明的先驱者
run on electricity
be used for ...
think of
With pleasure!
such a great invention
in our daily lives
have a point
the pioneers of
different inventions
梳理
1. Recite the conversation in 2d.
2. Preview the passage An Accidental Invention on page 43.
Homework