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师梦圆初中英语教材同步人教版九年级全一册Section B 3a—3b Self check下载详情
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内容预览

When was it invented?

Who invented it?

What is it used for?

Who:

When:

What for:

Edison

19th century

1. we can see in the dark

2.make life more comfortable

Who:

When:

What for:

Karl Benz

1879

1. makes travel easier than before

2.protect sb from the sun, wind, rain and cold

Who:

When:

What for:

Wright Brothers

1903

1. men can fly in the sky

2.the dream of searching the space comes true

Who:

When:

What for:

John von Neumann

1946

1. deal with the data more easily

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