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UNIT 1 SCIENCE FICTIONToday’s science fiction is tomorrow’s science fact.Isaac AsimovOpen page1. Look at the title of the unit and tell: what is science fiction?Science fiction, SF or sci-fi for short, is a form of fiction that deals principally with the impact of actual or imagined science upon society or individuals. （科学幻想，科幻）It is also a type of book, film/movie, etc. that is based on imagined scientific discoveries of the future, and often deals with space travel and life on other planets （科幻小说或影片等）Do Androids Dream of Electric Sheep(《仿生人会梦见电子羊吗》)Philip K. Dick《三体》(The Three-Body Problem) 刘慈欣《流浪地球》(The Wandering Earth)刘慈欣Foundation (《基地》)Isaac AsimovThe Time Machine(《时间机器》) H. G. WellsNineteen Eighty-four (《1984》) George Orwell2. How do you understand this quote? The quote can be parap