2. 9B Unit 1 9B Unit 1 Reading

3. air pollution

4. population large crowded more and more crowded

5. The color of Mars:_____________ red Mars

6. the solar system 太阳系 It’s between Earth and Jupiter in our solar system. Earth Jupiter Mars

7. the surface of Mars The surface of Mars is a little like the surface of Earth.

8. The lowest temperature will be -133 ℃ (degrees centigrade) and the highest will be 27 ℃

9. It may be difficult to imagine, people will live on the planet Mars. by the year 2100

10. spacecraft too slow to carry large numbers of people to Mars

11. spaceshuttle

12. travel at half the speed of light

13. helmet special boots space suit

14. dome

15. The Mars will turn into another earth in the future. connect to an interpanetary network

16. Listen to the recording and answer the following questions. 1.Why do people need to move to Mars ? 2.How long will it take to flay to Mars at present? 3.How will students study, do their homework and take exams on Mars? 4.Will space travel make people feel ill? 5.Will gravity on Mars be a big problem? Earth is becoming more and more crowded and polluted. Several months. They can study, do their homework and take exams in online schools. Yes. No. We will wear special boots.

17. 1 What vehicle do people use to Mars at present? And how long does it take? 2 What vehicle may people use to go to Mars in the future? And how long will it take? ( Spacecraft. Months.) (Space shuttles. Only a very short time.) Read each paragraph carefully and find out the answers to the questions.

18. 3 What will scientists do to solve the problems of food, water and air? ( Scientists will develop plants that can grow on Mars and produce the food, water and oxygen.) 4 What will food on Mars be like? ( Maybe the food will be in the form of pills and will not be as tasty as they are today.) Air, water, food

19. 5 Is gravity on Mars a big problem? Why? ( Yes, it is. Because the gravity on Mars is three- eighths of the gravity on Earth. ) ( Yes, it is. Because the gravity on Mars is three- eighths of the gravity on Earth. ) 6 What may happen then? ( People may jump high easily and float away into space.) ( People may jump high easily and float away into space.) 7 What kind of shoes should people wear? (People should wear special boots to make themselves heavier.) (People should wear special boots to make themselves heavier.) Gravity

20. 8 What kind of house may people live in ? ( A special dome with 10 bedrooms is highly possible.) ( A special dome with 10 bedrooms is highly possible.) 9 Who will do most of our work? (Robots will do most of our work.) (Robots will do most of our work.) Home

21. 10. What kind of school will students study in? And what do they call their teacher? ( Students can study in online schools and they call their teacher ‘e-teacher’.) ( Students can study in online schools and they call their teacher ‘e-teacher’.) School

22. Differences between life on Earth and life on Mars Earth today Mars in 2100 Polluted and crowded Spacecraft are slow Gravity is not a problem for us People can wear many types of shoes People do not have much space we take exams at school we have many different kinds of food clean and has lots of space Space shuttles are very fast It will be a big problem We must wear helmets We have more space In online schools Food will be the same

23. Discuss advantages and disadvantages of living on earth.

24. Advantages of living on Mars 1.It’s not _________or________. 2.The ________ is more convenient. 3.People will wear special _____ 4.People will have ______space. 5.______ will do most of our work. 6.We’ll have more time for_______. 7.Students will study in ______ schools. crowded polluted transport boots. more Robots hobbies online

25. Disadvantages of living on Mars 1.Low _______ will be dangerous. 2.Food does not taste _____. 3.Space travel make people feel ________. 4.It’s too ________to stay outside. 5.It’s too ______ away from friends on Earth. gravity good ill / sick cold far

26. 1 There will be various designs for settlers to choose from. 将有许多种设计可供移居者选择。 to choose from … 意思是 “ 从 …… 中挑选 ” 。 e.g. 我有很多双鞋子可以选择，但我决定不了选哪双。 I have many pairs of shoes _____________ (to choose from), but I don’t know which pair __________. (to choose)

27. 2 The journey might take only a very short time in space shuttles that travel at half the speed of light. 用以光速一半速度飞行的太空穿梭机进行的旅程 可能只要花很短的时间。 分析：此句是 that 连接的定语从句。 that 引导的定 语从句修饰先行词 space shuttles, 从句中的动词的 人称和数由先行词 space shuttles 决定。

28. 3. Compared with life on Earth, life on Mars will be better in many ways. 与在地球上的生活相比, 火 星上的生活在很多方面将会更好. compare with … 意思是 “ 与 …… 做比较 ” 。在句 中是过去分词短语作状语, 此时 with 和 to 可通用。 compare with … 意思是 “ 与 …… 做比较 ” 。在句 中是过去分词短语作状语, 此时 with 和 to 可通用。 e.g. 与我们的那条路相比, 这条路繁忙得多 。 e.g. 与我们的那条路相比, 这条路繁忙得多 。 This road is quite busy______ ____ ours. (compared … with / to ) This road is quite busy______ ____ ours. (compared … with / to )

29. 4. Every student will have a computer at home connected to inter-planetary network. 每个学生在家 里有一台连接星际网络的电脑。 connect to 意思是 “ 与 …… 连接 ” 。这里的 connected to 是过去分词后置作定语, 修饰 computer 。当然我们 也可以用 connect … to… 结构表示 “ 把 …… 和 …… 连 接起来 ” 。 e.g. 江阴大桥把江阴和靖江连接了起来. Jiangyin Bridge _______ Jiangyin ___ Jingjiang. (connects … to )

30. 呈现药片的形状 使某人感到非常难受 in the form of pills make sb. feel very ill 变得越来越拥挤 以 ……. 速度 以光速的一半运行 漂入太空中 become more and more crowded at the speed of … travel at half the speed of light float away into space 27. 压缩食品；干缩食品 dried food 阻止某人做某事 keep/stop/prevent sb. from doing sth.

31. 把 … 和 … 作比较 compare…with… 在太空旅行 在电脑的控制下 第一批居住在火星上的人 travel in space= space travel under the control of computers the first settlers to live on Mars three-eighths 八分之三 in many ways 在许多方面 in some ways 在某些方面

32. Exercises I 用所给词的适当形式填空： 1.Earth is becoming more and more _____ (crowd). 2.Every year, large numbers of tourists ______ (come) to visit Beijing. 3.This pair of boots looks very ______ (fashion). 4.There will be no _________ (pollute)on Mars. 5.The news maker her ____ (feel) sad. 6._______ (science)are working hard to make the dream become true. come pollution fashionable crowded Scientists feel

33. Homework: Homework: 1 、 Make a short passage about "Life on Mars". 2 、 Read the passages fluently.

34. Thank you