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Life on Mars（一）
Mars /maːz/ n. 火星
helmet /'helmɪt/ n. 头盔
air tank /tæŋk/ n. 氧气罐
dried food n. 干粮
power pack /pæk/ n. 电源包
sleeping bag n. 睡袋
gravity /'grævəti/ n. 重力
题一：Life in space
Daniel is dreaming about visiting another planet. What should he take with him? Write the name of the item under each picture.
air tank computer dried food power pack sleeping bag space helmet special boots tent
_____________ _____________
_____________ _____________
____________ _____________
_____________ _____________
Daniel is talking to Amy about living on Mars. What would it be like?
Daniel: What would it be like to live on Mars?
Amy: There’s less gravity on Mars. We’d probably need to wear special boots.
Daniel: Yes. And we might need sleeping bags too.
Amy: I agree. Also, there’s no fruit or vegetables, so we would have to eat dried food.
Daniel: Well ... that sounds quite boring! But there would be no pollution on Mars.
Amy: I hope so.
题二：Translate the phrases.
1. 去太空旅行 _____________________ 2. 你认为……怎么样? _________________
3. 干粮 _____________________ 4. 够到我的食物 _____________________
5. 少一些重力 _____________________ 6. 睡袋 _____________________
7. 我也不 _____________________
Unit 4 Life on Mars（二）
planet /'plænɪt/ n. 行星
crowded /'kraʊdɪd/ adj. 拥挤的
polluted /pə'luːtɪd / adj. 被污染的
increase /'ɪŋkriːs /n. 增加
rapid /'ræpɪd/ adj. 快的，迅速的
(all) over again 再；重新
passenger /'pæsɪndʒə(r)/ n. 乘客
at a/the speed of 以…的速度
uncomfortable /ʌn'kʌmftəbl/
adj. 使人不舒服的；不舒适的
oxygen /'ɒksɪdʒən/ n. 氧气
in the form of 以…的形式
tasty /'teɪsti/ adj. 味道好的
specially /'speʃəli/ adv. 专门地，特地
float /fləʊt/ vi. 飘浮；漂浮
compare/kəm'peə(r)/ vt.&vi. 比较
compare to/with 与…相比
interplanetary/,ɪntə'plænɪtri/ adj. 行星间的
network /'netwɜːk/n. 网络
challenging /'tʃælɪndʒɪŋ/ adj. 挑战性的
rapidly /'ræpɪdli/ adv. 快地，迅速地
Life on another planet
Daniel wants to find out more about life in space in the future. He has found the following article by a famous scientist who thinks humans could live on Mars by the next century.
Moving to Mars
Some people believe that humans could live on the planet Mars by the year 2100. Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population. It is hoped that people could start all over again and build a better world on Mars. Here is what life there could be like.
At present, our spacecraft are too slow to carry large numbers of passengers to Mars — it would take months. 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! However, the spacecraft would travel so fast that the journey to Mars might be quite uncomfortable. Many people would feel ill.
Humans cannot survive without water, oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and would not be so tasty.
Gravity could be another problem. The gravity on Mars is only about three-eighths of that on the Earth. People would have to wear boots that are specially designed to prevent themselves from floating off into space.
Compared with life on the Earth, life on Mars would be better in some ways. People would have more space. They might live in houses with huge comfortable rooms. Also, robots would do most of their work so that they could have more time to relax.
There would probably be no schools on Mars. Every student would have a computer at home connected to an interplanetary network. They would study at online schools with “e-teachers”. Life on Mars would be interesting as well as challenging.
Life in the future
题一：Daniel needs to check the meanings of some words in the article. Help him match the words on the left with the meanings on the right. Write the correct letters in the blanks.
1. crowded ________
2. rapid ________
3. population ________
4. all over again ______
5. passenger ________
6. tasty ________
7. specially ________
8. compare ________
a. for one purpose
b. a second time from the beginning
c. decide in what way things are similar or different
d. having a nice taste
e. full of people
f. happening in a short period of time
g. a person who rides in a car, bus, train, etc. but does not drive it
h. the total number of people in an area, a country, etc.
题二：Daniel is telling Simon about the article. Simon is very interested and is asking many questions. Help Daniel answer Simon’s questions. Circle the correct letters.
1. Why would people move to Mars?
a. The Earth is crowded and polluted.
b. People want to make friends with those from another planet.
c. Flying to Mars would be fun.
2. How long does it take to fly to Mars at present?
a. Hours. b. Months. c. Years.
3. What would the flight to Mars be like by the year 2100?
a. Fast and comfortable.
b. Fast but uncomfortable.
c. Slow but comfortable.
4. What would food on Mars be like?
a. Very tasty.
b. Very sweet.
c. Not very tasty.
5. Would gravity be a problem on Mars?
a. No, it’s not a problem.
b. Yes. Many people would get lost.
c. Yes, and people would wear special boots.
6. Where might people live on Mars?
a. In houses with huge rooms.
b. On spacecraft.
c. In sleeping bags.
7. What would schools be like on Mars?
a. Very small.
b. Online schools.
c. Like those on the Earth.
8. What does the writer think of life on Mars?
a. Better than life on the Earth.
b. Worse than life on the Earth.
c. There would be good and bad points.
Unit 4 Life on Mars（三）
aware /ə'weə(r)/ adj. 知道，意识到 circle /'sɜːkl/ vi.&vt. 围绕；将…圈起来
agreement /ə'griːmənt/ n. 一致，同意 distance /'dɪstəns/ n. 距离；远处
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possibility / pɒsə'bɪləti/ n. 可能性 alien /'eɪliən/ n. 外星人
stranger /'streɪndʒə(r)/ n. 外来者，陌生人
risk /rɪsk/ n. 风险，危险
after all 毕竟 carry out 开展；执行
percentage /pə'sentɪdʒ/ n. 百分率；百分数
disadvantage / dɪsəd'vaːntɪdʒ/
n. 劣势，缺点，不利条件
goods /gʊdz/n. /复/商品，货品
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electronic /ɪ lek'trɒnɪk/adj. 电子的 entertainment/ entə'teɪnmənt/ n. 娱乐
About the planet Mars
Millie knows little about the planet Mars. She is asking Daniel for more information. Rewrite Millie’s sentences using the words in brackets.
Millie: (1) Are you aware how far Mars is away from the Sun?
Daniel: Yes. Mars is about 142,000,000 miles away from the Sun. It takes Mars about two Earth years to circle around the Sun once.
Millie: (2) Are scientists in agreement that living on Mars would be possible for humans in the future?
Daniel:No. But they’re working hard to learn more about Mars.
Millie: (3) Do they think that the low gravity on Mars might be a problem?
Daniel: Yes, they do.
Millie: (4) Are you aware what transport could be like on Mars?
Daniel: It could be much better than that on the Earth. However, scientists aren’t sure whether people could grow plants on Mars.
Millie: (5) I wonder how many people would like to move to Mars.(6) I think people should know that life on Mars would be different from that on the Earth.
题一：
1. Are you aware________________(distance)?
2. Do scientists agree___________________(possibility)?
3. Have they thought____________(problem)?
4. Are you aware______________(transport)?
5. I wonder_______________(number).
6. I think people should know (differences).
题二：Simon is interested in stories about aliens. He even writes to aliens. Replace each of the underlined parts in his letter with another expression.
Dear aliens,
Humans are thinking about moving to another planet(1)because the pollution on the Earth is very serious. Many people are in no doubt(2) that life on Mars would be very interesting, but I am not sure. We could not play football on Mars(3) because of the low gravity.
Life would be boring for me(4) if I could not play football. Maybe this problem could be solved by building indoor playgrounds(5)which have the same football fields as those on the Earth.
By the way, would strangers be welcome? I hope to hear from you soon.
Simon
Speak up: Earth or Mars?
Daniel and Sandy are talking about living on Mars.
Daniel: Would you like to live on Mars, Sandy?
Sandy: I’m not sure if it’s worth the risk. It worries me.
Daniel: Why? It would be quite safe. After all, humans have already been to the Moon.
Sandy: Maybe you’re right, but we might get ill from living there.
Daniel: I don’t think so, Sandy. It’s just a different kind of life. It would be great to live on another planet.
Sandy: What about all your friends here on the Earth if you go to Mars?
Daniel: I want you all to come too.
Sandy: OK. If we all go together, it should be fun.
单词听写
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Unit 4 Life on Mars（一）
题一：
air tank tent
dried food space helmet
7
specail boots computer
power pack sleeping bag
题二：
1. travel into space 2. How do you like...? 3. dried food 4. get to my food
5. less gravity 6. sleeping bags
7. Me neither.
Unit 4 Life on Mars（二）
题一：1. e 2. f 3. h 4. b 5. g 6. d 7. a
8. c
题二：1. a 2. b 3. b 4. c 5. c 6. a 7. b
8. c
Unit 4 Life on Mars（三）
题一：
1. of the distance from Mars to the Sun
2. on the possibility of human living on Mars in the future
3. about the problems of low gravity on Mars
4. of the transport on Mars
5. the number of people willing to move to Mars
6. the differences of life between on Mars and on the Earth
题二：
(1) because of the serious pollution on the Earth
(2) of the interesting life on Mars
(3) because the gravity is low
(4) without football
(5) with the same football fields as those on the Earth
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