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___ (8) 需要食物 、水、空氣來(lái)生存 _____ (9)八分之三 _______ (10)在一些方面 _________________________ 2. 探究學(xué)習(xí) Step 1: Warming up (1) T: Have you ever seen any science fiction films or have you ever read any science fiction stories? (2) T: Have you ever ―Star wars‖? Do you think it’s realistic? Do you believe in aliens? Do you like this film? Why? Would you like to go into space? (3) T: Have you ever heard of Mars? Do you know what color Mars is? Step 2: Discussion T: What do you think life on Mars will be like? Encourage the students to have a discussion.