Unit 4知识梳理2022-2023学年牛津译林版九年级英语下册

Unit 4 Life on Mars 重点单词： planet行星 crowded拥挤的 polluted被污染的 rapid快的，迅速的 increase增加 uncomfortable使人不舒服的；不舒适的 tasty味道好的 specially专门地，特地 compare比较 rapidly快地，迅速地 possibility可能性 stranger陌生人，外来者 risk风险，危险 重点短语： dried food干粮 sleeping bag睡袋 （all）over again再；重新 at a/the speed of以...的速度 in the form of以...的形式 compare to/with与...相比 be compared with sth.被与某物相比 be aware of意识到 carry out开展；执行 after all毕竟 How do you like….?=What do you think of….?你觉得...怎么样？ a large number of =large numbers of+名复 大量的 large numbers of passengers大量的乘客 travel at the speed of light以光的速度旅行 three-eights of the gravity on Earth地球引力的八分之三 It is hoped that… …可以指望 in many ways在许多方面 increase rapidly迅速地增加 one-third/one third三分之一 be similar to与……相似 in agreement意见一致 重点句型： 1. It is hoped that people could start all over again and build a better world on Mars.人们有望能够在火星上重新开始建设一个更好的世界。 2. Here is what life there could be like. 这里描述的是那里的生活可能是什么样子的。 3. At present, our spacecraft are too slow to carry large numbers of passengers to Mars—it would take months. 目前我们的宇宙飞船太慢了，无法运送大批的乘客去火星，因为要花几个月的时间。 4. With the development of technology,by the year 2100, the journey might only take about 20 minutes in spacecraft that travel at the speed of light! 随着技术的发展，到2100年，乘坐以光速飞行的宇宙飞船，行程或许只要大约20分钟！ 5. Food would most probably be in the form of pills and would not be so tasty. 食物很大可能会以药片的形式存在，而且味道没那么可口。 6. The gravity on mars is only about three-eighths of that on the Earth. 火星上的重力大约只有地球上的3/8。 7. Compared with life on the earth, life on mars would be better in some ways. 与地球上的生活相比，火星上的生活在有些方面要好一些。 8. Every student would have a computer at home connected to an interplanetary network. 每个学生家里都有一台电脑与星际网络连接。 9. Life on mars would be interesting as well as challenging. 火星上的生活不仅有挑战性，而且还很有趣。 温馨提示： 1. 使用状语从句或简单句 ①Neil Armstrong received his student pilot’s licence when he was 16. Neil Armstrong received his student