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师梦圆初中英语教材同步外研版九年级上册Unit 1 Will computers be used more than books in the future.下载详情

九年级上册《Unit 1 Will computers be used more than books in the future.》精品PPT课件下载-龙岩市优质课

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It needs soap and water to wash something in it.

Washing

machine

Guess

It allows you to get a likeness of an object.?

When you press the button, it works. When a flash happens, it will copy a scene onto a film.

When the film is developed, the scene you copied appears on a paper-like thing.

Camera

Guess

The invention looks like a chair.

It has a pipe through which the waste can go.

People use it to get rid of waste in their bodies .

It is usually made of china these years.

Toilet

Guess

Do you know the following inventions? Who invented them, and when?

paper

Cai Lun

105 A. D.

printing

Bi Sheng

1041-1045

compass

the 11th century

gunpowder

the 9th century

car

Karl Benz

in 1885

steam engine

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