Unit 4 Life on mars 知识梳理-2023-2024学年九年级英语下册同步精品课堂（牛津译林版）

Unit 4 Life on mars 知识梳理 知识点一 重点短语 1. dried food n. 干粮 2. sleeping bag n. 睡袋 3. think about 考虑; 想到 4. get to 到达; 开始 5. (all) over again 再; 重新 6. with the development of technology 随着技术的发展 7. at a / the speed of 以……速度 8. in the form of 以……形式 9. compare to / with 与……相比 10. connect to / with 连接到, 相连 11. become more and more crowded and polluted 变得越来越拥挤, 污染越来越严重 12. because of the rapid increase in population 由于人口的迅速增长 13. outer space 外太空 14. as tasty as 和……一样好吃 15. remind sb. that/of sth. 使某人想起某事 16. be sure that /about sth. 对某事有把握 17. thin air 稀薄的空气 18. indoor playground 室内运动场 19. carry out 开展; 执行 20. get ill 生病 21. after all 毕竟 知识点二 重点句子 1. Me neither. 我也没有。 2. How do you like life on Mars? 你认为在火星上的生活怎么样？ 3. What would it be like to live on Mars? 生活在火星上会是什么样的呢？ 4. But there would be no pollution on Mars. 但是在火星上不会有污染。 5. Some people believe that humans could live on the planet Mars by the year 2100. 一些人 认为到2100 年人类可以在火星上生活。 6. It is hoped that people could start all over again. 人们有望能够再次重新开始。 7. However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. 然而, 宇宙飞船的飞行速度会非常快, 以至于去往火星的路途可能会相当不舒服。 8. The gravity on Mars is only about three-eighths of that on the earth. 火星上的重力大约 只有地球上的八分之三。 9. Compared with life on the Earth, life on Mars would be better in some ways. 与地球上 的生活相比, 火星上的生活在某些方面会更好。 10. Also, robots would do most of their work so that they could have more time to relax. 并且机器人将会做他们的大部分工作以便他们能有更多的时间去放松。 11. Every student would have a computer at home connected to an interplanetary network. 每位学生家里都有一台电脑与星际网络连接。 12. Life on Mars would be interesting as well as challenging. 火星上的生活将不仅有挑战性, 还很有趣。 13. Are they sure about the fast speed of space travel? 他们确定太空旅行将会是非常快吗？ 14. It takes Mars about two Earth years to circle around the Sun once. 火星环绕太阳一周需要花费大约两个地球年的时间。 15. Humans cannot survive if there is no food, water or oxygen. → Humans cannot survive without food, water or oxygen. 如果没有食物、水或氧气, 人类