2022年9BUnit4LifeonMars教案 .pdf

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1、9B Unit 4 Life on Mars Welcome to the unit Teaching aims: 1. Thinking about life in the future. 2. Thinking about what life be like on another planet. 3. Discussing the advantage and disadvantage of a particular environment. Teaching procedures: Step 1 Warming upShow some pictures and let students k

2、now something about Mars. Do you know this planet? Step 2 Read and say Mars, helmet, air tank, dried food, power pack, sleeping pack, gravity Step 3 Discussion By 2050,our earth will become What shall we do? Where shall we live? Step 4 Practice Daniel is dreaming about visiting another planet. What

3、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 Keys: air tank, tent, dried food, space helmet, special boots, computer, power pack, sleeping bag Step 5 Discussion Can you guess what t

4、he life will be like on Mars? On Earth & on Mars fruit or vegetables dried food gravity less gravity pollution no pollution very important not important too much homework less homework and robots will help her Step 6 Daniel is talking to Amy about living on Mars. What would it be like? Work in pairs

5、 and discuss with your partner. Use the conversation below as a model.Daniel: What would it be like to live on Mars? Amy: There s less gravity on Mars. Wed probably need to wear special boots.Daniel: Yes. And we might need sleeping bags too. 精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - -

6、- - - - -第 1 页，共 22 页 - - - - - - - - - - Amy: I agree. Also, theres no fruit or vegetables, so we would have to eat dried food.Daniel: Wellthat sounds quite boring! But there would be no pollution on Mars.Amy: I hope so. Step 7 Watch a video and answer the questions. What do the boy and his father

7、want to do? Can you guess do they like travel into space? Step 8 Listen and answer 1. Do you think Eddie likes the life on the Mars? 2. Why does Eddie hate life on the Mars? Keys: No, I dont think so. He can t get to his food because of the helmet. Step 9 Role play the conversation between Hobo and

8、Eddie. Hobo: Wow, I ve never thought about travelling into space.Eddie: Me neither. Hobo: How do you like life on Mars? Eddie: I hate it. Hobo: Why do you hate it? I thought you liked Mars. Eddie: Its this helmet.I can t get to my food.Step 10 Language points 1. Hobo: Wow, I ve never thought about t

9、raveling into space. Eddie: Me neither. 否定回答 Me neither 为非正式用法，美式英语中用Me either 正式答为 Neither have I.2. How do you like life on Mars? 你认为火星上的生活怎么样？How do you like ? =What do you think of?e.g. How do you like my new look? 你认为我的新造型怎么样？Step 11 Exercises 1. Translate the phrases 1.去太空旅行2.你认为怎么样? 3.我原以为 4.

10、得到我的食物5.少一些的重力6.没有污染Keys: travel into space, How do you like? I thought, get to my food, less gravity, no pollution 2. Complete the following sentences. 1. R_ will help us with our housework in the future. 2. Youd better wear a h_ to keep yourself safe when you are riding a motorcycle. 3. He likes m

11、usic very much and he can play the _ ( 吉他) very well. 4. She likes wearing a pair of _ ( 太阳镜) to keep off the sun. 5. I think we need a _( 帐篷) when we are camping. Keys: Robots, helmet, guitar, sunglasses, tent Step 12 Homework 1. Search more information about Mars on the Internet. 2. Preview the ne

12、w words in next lesson. 精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 2 页，共 22 页 - - - - - - - - - - Reading I Teaching aims: 1. Understand the planet living in another plant. 2. To recognize and read words of life on Mars. 3. Identify and list the differences lives between ea

13、rth and Mars. Teaching steps Step 1 Review Translate some sentences. 1. 我从来没想过去太空旅行。2. 你认为火星上的生活怎么样？3. 我原以为你喜欢火星。Keys: I ve never thought about traveling into space.How do you like life on Mars? I thought you liked Mars. Step 2 Presentation planet crowded polluted rapid increase (all) over again pas

14、senger at a/the speed of uncomfortable oxygen in the form of tasty specially float compare compare to /with interplanetary network challenging rapidly Step 3 Match the words and the meaning crowded a. for one purpose rapid b. a second time from the beginning population c. Decide in what way things a

15、re similar or difficult all over again d. having a nice taste passenger e. full of people tasty f. happening in a short period of the time specially g. a person who rides in a car, bus, train, etc. but does not drive it compare h. The total number of people in an area, a country, etc. Keys: e f h b

16、g d a c Step 4 Discuss The color of Mars: _ Red the surface of Mars The surface of Mars is a little like the surface of Earth. The size of Mars one-half the diameter ( 直径) of Earth 精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 3 页，共 22 页 - - - - - - - - - - the temperature of

17、the Mars The lowest temperature will be -133 (degrees centigrade) and the highest will be 27 the transport to the Mars spacecraft are too slow to carry large numbers of people to Mars Step 5 Pre-reading Daniel is looking for more information on the Internet. Help him find out the links to the key wo

18、rds. crowded planet space houses spacecraft robot on Mars speed boots online teacher a Need someone to teach you any time, any place? b Living in a space house is func All about the newest spacecraft that travel in spaced Out shoes can make you walk faster! e Robots could be of great help to people

19、on Mars. f The population on the Earth is still increasing rapidlyKeys: crowded planet The population on the Earth is still increasing rapidlyspacecraft All about the newest spacecraft that travel in space speed boots Our shoes can make you walk faster! 精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归

20、纳 - - - - - - - - - -第 4 页，共 22 页 - - - - - - - - - - space houses Living in a round house is fun robot on Mars Robots could be of great help to people on Marsonline teacher Need someone to teach you any time, at any place? Step 6 Fast reading Read the article quickly and find out the keyword of eac

21、h paragraph. Para 1 Para 2 Para 3 Para 4 Para 5 Para 6 Para 7 Keys : Para 1 Crowded, polluted (population , pollution) Para 2 Transport Para 3 Food, water and air Para 4 Gravity Para 5 Home Para 6 School Para 7 Life Step 7 Listen to the recording and answer the following questions. 1. Why do people

22、need to move to Mars? 2. How long will it take to flay to Mars at present?3. Will space travel make people feel ill? 4. Will gravity on Mars be a big problem? 5. How will students study? Keys: Earth is becoming more and more crowded and polluted. Several months. Yes. Maybe, but we can wear special b

23、oots to prevent floating. They will study at online schools with “e-teachers ”.Step 8 Careful reading Read each paragraph carefully and find out the answers to the questions 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 t

24、he future? 3. What are the problems of living on Mars?4. What will food on Mars be like? 5. Is gravity on Mars a big problem? Why? 6. What may happen then? 7. What kind of shoes should people wear? 8. What kind of house may people live in ? 9. Who will do most of our work? 精品资料 - - - 欢迎下载 - - - - -

25、- - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 5 页，共 22 页 - - - - - - - - - - 10. What kind of school will students study in? And what do they call their teacher?Keys: Spacecraft. Months. Space shuttles. Only 20 minutes. Scientists are not sure whether would be enough water or oxygen on Mars and produce

26、 the food, water and oxygen. Maybe the food will be in the form of pills. Yes, it is. Because the gravity on Mars is three-eighths of the gravity on Earth. People may float off into space. People should wear special boots. They might live in houses with huge comfortable rooms. Robots will do most of

27、 our work. There would probably be no schools on Mars. They will study at online schools with “e-teachers ”.Step 9 DiscussDifferences between life on Earth and life on Mars. Life on the Earth today Life on Mars in 2100 It is polluted and crowed. It would be clean and have lots of space. Spacecraft a

28、re slow. There is enough water and oxygen. There are many kinds of tasty food. Gravity is not a problem for us. Many people live in small flats. People have little time to relax. Students study at real schools. Keys: At the speed of light. Nobody knows whether there would be enough water or oxygen.

29、Food will probably be in the form of pills. We must wear special boots. People will have more space. They will have more time to relax. At online schools. Step 10 Homework 1. Read the passage aloud.2. Find out the difficult sentences and discuss them with your classmates. 精品资料 - - - 欢迎下载 - - - - - -

30、 - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 6 页，共 22 页 - - - - - - - - - - Reading IITeaching aims: To learn words, expressions and sentences in Reading. Step 1 Review Review the article and finish activity 3. Step 2 Language points 1. Our own planet, the Earth, is becoming more and more crowded and p

31、olluted because of the rapid increase in population. 我们自己的星球 , 地球, 由于人口的快速增长, 变得越来越拥挤 , 污染越来越严重。辨析： fast, quick和 rapid 【梳理】1) fast 既可用作形容词又可用作副词, 主要表示人或物体本身的速度快, 如汽车开得快、人走得快、时间过得快等。2) quick 常用作形容词 , 主要表示反应快、动作敏捷。3) rapid 是正式用语 , 只用作形容词 , 语气较强 , 常用于表示抽象意义的 “ 快速的”, 如价格涨得快、社会变革快等。【运用】选用 fast, quick或 ra

32、pid 填空。1) My brother ate a _ breakfast and went to school in a hurry. 2) Tom runs so _ that I cant catch up with him.3) We saw the _ development of the society these years. 2. 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。句型 It is hoped

33、 that表示“ 可以指望 ” ，指说话者希望如此。如：我们希望在本周前完成此项目。_ we can finish the project before this weekend. 3. At present, our spacecraft are too slow to carry large numbers of passengers to Marsit would take months. 目前，我们的宇宙飞船太慢了， 无法运送大批的乘客火星因为要花几个月的时间。句中的 large numbers of表示“ 大量的 ” ，也可以说成a large number of 。如: 很多人在国

34、庆假日去旅游。_ people go travelling during the National Day holiday.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. 随着科技的发展，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！短语 at a/the speed of的意思是 “ 以的速度” 。如：小汽车正以每小

35、时100 公里的速度行驶。The car is moving _100 kilometers per hour. 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，而且味道没有那么可口。精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 7 页，共 22 页 - - - - - - - - - - 句中的 in the form of 的意思是“ 以的形式 ” 。如: 欢

36、迎以钱的形式资助。Help _money will be welcome. 6. The gravity on Mars is only about three-eights of that on the earth. 火星上的重力大约只有地球上的八分之三。在表示分数时 , 分子用基数词 , 分母用序数词。分子如果大于 1, 分母须用复数形式。分子、分母之间有无连字符均可。如: 1/3 2/5 在做比较时，我们常用that/those指代句中类者相同的那一部分。通常that用于指代可数名词数或者不可数名词，those用于指代可数名词复数。此句中的that 指代前面的 gravity。如：火星上

37、的空气要比起球上稀薄很多。The air on Mars is much thinner than _ on the earth. 7. Compared with life on Earth, life on Mars would be better in some ways. 与在地球上的生活相比 , 火星上的生活在有些方面将会更好。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。如: 与我们的那条路相比 ,这条路繁忙得多。This road is quite busy_ ours. 8. Every student w

38、ould have a computer at home connected to interplanetary network. 每个学生家里都有一台电脑与星际网络连接。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。connect to 表示“ 把 和连接起来” 。如: 山姆想把鼠标和电脑连接起来。Sam wants to _. 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很有趣。短语 as well a

39、s 的意思是 “ 不但而且，既 又” 。注意这一短语在翻译成中文时，应先 as well as 后面的内容，再翻译前面的。如: They visited the museum as well as the zoo. 他们不但参观了动物园 , 还参观了博物馆。Step 3 Summary Review the article, then use the words to fill in the blanks. Step 4 Homework.1. Make a short passage about Life on Mars. 2. Read the passages fluently. 精品资

40、料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 8 页，共 22 页 - - - - - - - - - - Grammar Teaching aims: Master conversion between simple sentence and complex sentence. Teaching procedures: Step 1 Present some new words. aware adj. 知道，意识到e.g. Are you aware how far Mars is away from th

41、e sun? circle vt. 围绕，将一圈起来e.g. It takes Mars about two Earth years to circle around the Sun once. agreement n. 一致，同意e.g. Are scientists in agreement that living on Mars would be possible for humans in the future? distance n. 距离，远处e.g. Are you aware of the distance between Mars and the sun? possibili

42、ty n. 可能性e.g. Do scientists agree about the possibility of living on Mars? Step 2 Explanation 简单句和复合句的转换我们可以用介词短语把状语从句转换成简单句，我们可以用介词把宾语从句和定语从句转换成简单句A Using adverbial clauses or simple sentences We can rewrite some adverbial clauses in simple sentences with at the ageof, because of and without.转换时要注意

43、时态和意思的一致性和准确性。Neil Armstrong received his student pilots licence When he was 16. Neil Armstrong received his student pilots licence at the age of 16.People might float in space because the gravity is slow. People might float in space because of the low gravity. Humans cannot survive if there is no f

44、ood, water or oxygen. Humans cannot survive without food, water or oxygen. Exercises 1 Daniel is writing about visiting another planet. Help him rewrite the sentences using the words in brackets. 1. Neil Armstrong took his first flight when he was only six. (at the age of) 2. Yuri Gagarin became the

45、 first man to go into outer space at the age of 30.(when) 3. People might move to another planet in the future because the population on the earth is increasing rapidly. (because of) 4. If there is no fresh food, meals will not be as tasty as they are on the earth. (without) 5. It would be funny to

46、play football on Mars because of the low gravity. (because) 6. Without special boots, you cannot walk on Mars. (ifnot )Keys: 1. Neil Armstrong took his first flight at the age of six. 精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 9 页，共 22 页 - - - - - - - - - - 2. Yuri Gagarin

47、became the first man to go into outer space when he was 30. 3. People might move to another planet in the future because of the increasing rapidly population. 4. Meals will not be as tasty as they are on the earth without fresh food. 5. It would be funny to play football on Mars because the gravity

48、is low. 6. If you dont have special boots, you cannot walk on Mars.Exercises 2 把下面的复合句改成简单句1. He learnt to swim when he was eight years old. 2. He could not go to the party because he had too much homework. 3. He cannot solve this problem if he has no help. Keys: He learnt to swim at the age of eigh

49、t.He could not go to the party because of too much homework. He cannot solve this problem without help. B Using object clauses or simple sentences We can rewrite some object clauses in simple sentences with prepositions like of and about. 常用的一些动词和介词的搭配有：remind somebody of使某人想起 Be sure/certain about对

50、确信The smell of the pills reminds them that food on the Earth is tasty. The smell of the pills reminds them of the tasty food on the Earth. Are they sure that space travel will be very fast? Are they sure about the fast speed of space travel? Exercises 3 Millie knows little about the planet Mars. She