Unit 4 Life on Mars 课题 九下U4P3 班级 姓名 等第 1. 人口(n.) 2. 行人(n.) 3. compare (v.) 4. 行星 (n.) 5. 使人不舒服的(adj.) 6. float（v.) 7. 网络（n.）_____ _____ 8.challenging（adj.） _____ 9. 迅速地（adv.）_____ 10.截止到2100年_____ 11. 人口迅速的增长 12.随着科技的进步 13.以光速 14.生病 15.阻止某人做某事 16. so that 回顾文章Reading，浏览表格，小组讨论。 Life on Mars Life on Earth Advantages（优点） Disadvantages （缺点） Advantages Disadvantages 1.not crowded or polluted 1.low gravity is dangerous 1.food is tasty and fresh 1.crowded and polluted 2.no heavy traffic 2.food is not fresh or tasty 2.travel is comfortable 2.not much space 3.have more space 3.travel will make people sick 3.we can breathe the air 3.noisy 4.robots will do our work 4.too cold to go outside 4.we can go to theatres, concerts,etc. 4.not very exciting or unusual 5.more time for hobbies 5.far away from friends 1. Earth is becoming more and more crowded and polluted because of the rapid increase in population. more and more 加强程度，表示“越来越……”结构：比较级+比较级 e.g. younger and younger, faster and faster, better and better, more and more careful, more and more comfortable 2. Because our spacecraft are too slow to carry large numbers of people to Mars at present. ①too + adj. + to do…/ 太···而不能 ②so … that … can’t …/ 如此···以至于···不能··· ③… adj. + enough to do … 足够···做··· e.g. Sandy太年轻了而不能去上学。 ①Sandy is too young to go to school. ②Sandy is so young that she can’t go to school. ③Sandy is not old enough to go to school. 3. at the speed of By the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light. e.g. The speed of the light is nearly 300,000,000 meter per second. The cars are driving at high speed. We should move at the speed of 100 kilometers per hour. 4. in the form of “以……的形式” —Would you like the food in the form of pills —Of course not. I hate eating pills so far. life on Mars would be interesting as well as challenging. 火星上的生活不仅有挑战性，还很有趣。 “as well as”意味“不但···而且···” Eg. They visited the museum as well as the zoo. 他们不仅参观了动物园，还参观了博物馆。 6.compared with/to“与……相比较” —I compared the first report with the second. —You did a good job. 7. so that “以便”，表目的 We should plant more trees so that we can have a better environment. 8.have a computer connected to … 有一台电脑与···连接。过去分词短语作后置定语。 —What do you read in your spare time —The books written by Han Han are my favourite. Ⅰ．根据句意, 用括号中所给单词的正确形式填空 1.There is something wrong with the mouse (connect) to the computer. 2.These days the buses are always (crowd) with people. 3.As we know, Huawei technology has been developing (rapid). 4.People would have to wear those special boots to prevent themselves from (float) off into space. 5. When faced with difficult situations in their live ... ...
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