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unit 9 when was it invented区优质课课件

发布时间:2013-10-15 13:31:56  

Period 1

Words and expressions
invent invention inventor calculator be used for v. 发明;创造 n.发明;创造 n.发明人;创造者 n.计算器 用来做……

Do you know?

What are the Four Great Inventions in ancient China?

four great inventions
compass

Paper making

gun powder

printing

modern inventions

calculator

[‘k?lkjuleit?]

A: When was the … invented? B: It was invented in _____.

1976

1927

1885

1971

1876

light bulb 1879
When was it invented? It was invented in 1879. Who was it invented by ? It was invented by Edison. What’s it used for?

Edison.

It’s used for helping people see in the dark.

Car
1885
When was it invented? It was invented in 1885. Who was it invented by ? It was invented by Benz. What is it used for?
It is used for traveling.

Benz.

Beld

1927
Bell 1876
Fen.Noyma

1971
Kelif

When was it invented? Who was it invented by ? What is it used for?

1976

Crazy inventions

? What do you want to invent? ? What’s it used for?
used for driving and flying used for walking and singing

Thank you !


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