Unit 4 Scientists who changed the world Welcome to the unit 课件-江苏省丹阳高级中学2020-2021学年高一英语牛津译林版（2020）必修第三册

Unit 4 Scientists who changed the world Welcome to the unit 1. Do you know some stories of the old scientists? Lead-in 2. Do you want to be a scientist? Lead-in Before-listening Do you know his significant contribution? Yuan Longping: In 1953: _______________ In the 1970s: _______________ In 2004: _______________ Stephen Hawking: In 1942: _______________ In 1988: _______________ In 2002: _______________ While-listening While-listening Yuan Longping In 1953: ___________________________________________ In the 1970s: ___________________________________________ In 2004: __________________________________________ He graduated from South-west Agricultural College. He succeeded in developing the first hybrid rice varieties. He won the Wolf Prize in Agriculture and the World Food Prize. While-listening While-listening Stephen Hawking In 1942: _______________________________________ In 1988: ______________________________