【正文】
Unit 1 Life on Mars Reading Who is he? And what is he? spacecraft 山谷和溪流證實火星上曾存在水? It may be difficult to imagine, people will live on the pla Mars . by the year 2100 Task 1:Read the book and answer the following questions: Why do people need to move to Mars ? What form will the food probably be in space? How will students study, do their homework and take exams on Mars? Earth is being more and more crowded and polluted . The food probably will be in the form of pills. They can study, do their homework and take exams at online schools. Will space travel make people feel ill? What is the virtual teacher called? Yes . The virtual teacher is called eteacher. Task 2 : What will the life be like ? Transport Food, water and air Gravity spacecraft space shuttles …too slow to carry … …take only a very short time… plant