Unit 3 Welcome to the unit and Reading I 课件-2022-2023学年牛津译林版（2020）高中英语选择性必修第三册

Unit 3 Back to the past Welcome to the unit & Reading (I) The pursuit of the ultimate truth of the universe is the final objective and destination of civilization. —Liu Cixin 对宇宙终极真理的追求，是文明的最终目标和归宿。 Lead-in Looking into a mirror, we can see true images of our own; with our knowledge of the past, the present can be better known. —Chen Shou 明镜所以照形，古事所以知今。 WELCOME Welcome to the unit Have you ever heard of time traveling? Do you believe people can really travel through time? Life on a space station Read the excerpt and complete the table. The name of the book (1) The author (2) The main character (3) The main character’s view (4) The way to support his idea (5) The plots to be continued (6) Welcome to the unit The Time Machine H. G. Wells The Time Traveller There is a fourth dimension—Time. He conducted an experiment with a model of the Time Machine. He moved in time and got enough proof to make the group convinced. WELCOME Welcome to the unit If you had a time machine, which dynasty would you go back to? Why? If I had a time machine, I would like to go back to the Tang Dynasty. I have always been fascinated by Chang’an, so I wish I could travel to the ancient capital and see what life was like back then. WELCOME Welcome to the unit Which historical figure would you like to meet? What would you say to him/her? WELCOME Video-watching Watch the video, get to know this historical figure and try to think about his equivalent (对等的人或事) in ancient China. What dangers did explorers face in the past? In the past, before modern technologies were invented, explorers mainly travelled by ship and on foot, or they used animals to get around. They did not have GPS and medical treatments for many diseases were not yet discovered. Because of the lack of these inventions and