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造纸术
compass
指南针
printing
印刷术
gunpowder
火 药
Do you know who invented them, and when?
paper
Cai Lun
105 A. D.
printing
Bi Sheng
1041-1045
It was invented …
compass
11th Century
gunpowder
9th Century
It was invented …
Can you tell me some great
inventions that are important
in our daily life?
What is this called in English?
It is called a/an…
When was the… invented?
It was invented in…
Look at the things below. In what order do you think they were invented? Discuss them with your group. Then number them [1-4](1=first,4=last)
1
2