Unit4 Welcome to unit 课件-2022-2023学年高中英语牛津译林版（2020）必修第三册

Unit 4 Scientists who changed the world Lead in Lead-in 1. Have you ever dreamt of becoming a scientist? 2. Who do we refer to when talking about “scientists”? The scientist is motivated primarily by curiosity and a desire for truth. — Irving Langmuir 科学家的驱动力主要是好奇心和对真理的渴望。 欧文﹒朗缪尔，美国化学家、物理学家，因在表面化学上的贡献于1932年获得诺贝尔化学奖。 What is the scientist? 3 Presentation Presentation Patient Courageous Creative Persistent Hard-working Objective Thoughtful … Can you list other qualities? Game Time! PK What scientists do you know of ? scientists Great scientistsGreat scientists Fight for Your group ScoresFight for Your group Scores great 1 point 1 point 2 points 2 points Show Answer Back to board Isaac Newton 1 1 Back to Board Yuan Longping The Father of Hybrid rice（杂交水稻） 2 Super rice Back to board 3 Qian Xuesen The Father of China Aerospace（航空） Hydrogen bomb atomic bomb Man-made satellite Back to Board Tu Youyou Noble Prize winner 4 Presentation Watch the video and finish the following exercises. P43 graduated from succeeded in developing made great contributions to 237 weeks What else do you know about the two scientists in the video? • Yuan Longping has an asteroid（小行星）named after him. In 1999, the asteroid project team who discovered it decided to honour this great man for his achievement in developing hybrid rice（杂交水稻）. The asteroid is called “Yuan Longping star”. • Stephen Hawking fulfilled（实现） his lifelong dream of experiencing zero gravity（重力）, even though he was wheelchair-bound（坐轮椅的）. His dream came true when he flew in a special zero gravity airplane in 2007. More about Yuan Longping Lavf58.29.100 Lavf58.20.100 Bilibili VXCode Swarm Transcoder v0.7.22 Lavf58.20.100 Bilibili VXCode Swarm Transcoder v0.6.11 $