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必修三英语《Unit 4 Scientists who changed the world》Welcome to the unit精品课课件
Reading 1
The evolution of video and sound devices
高中英语 必修（第三册）
Unit 4
Scientists who changed the world
Welcome to the unit
3. Can you talk about some scientists’ stories and contributions?
1. Have you ever dreamt of becoming a scientist?
2. Can you name some scientists who you are familiar with?
Lead-in
Lead-in
The scientists is motivated primarily by curiosity and a desire for truth.
—Irving Lanmuir
Lead-in
Look at the picture on Page 43.
Do you know who he is?
What do you know about this scientist?
Yuan Longping:
In 1953: _______________
In the 1970s: _______________