9B Unit 4 Life on Mars 教案.doc

9B Unit 4 Life on Mars Welcome to the unitTeaching 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 up Show some pictures and let students know something about Mars.Do you know this planet?Step 2 Read and say Mars, helmet, air tank, dried food, power pack, sleeping pack, gravityStep 3 DiscussionBy 2050,our earth will become What shall we do? Where shall we live?Step 4 PracticeDaniel 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, tentKeys: air tank, tent, dried food, space helmet, special boots, computer, power pack, sleeping bag Step 5 Discussion Can you guess what the 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 herStep 6 Daniel is talking to Amy about living on Mars. What would it be like? Work in pairs and discuss with your partner. Use the conversation below as a model.Daniel: What would it be like to live on Mars?Amy: Theres less gravity on Mars. Wed probably need to wear special boots.Daniel: Yes. And we might need sleeping bags too.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 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 cant get to his food because of the helmet. Step 9 Role play the conversation between Hobo and Eddie.Hobo: Wow, Ive 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 cant get to my food.Step 10 Language points1. Hobo: Wow, Ive never thought about traveling 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 Exercises1. Translate the phrases1.去太空旅行 2.你认为怎么样? 3.我原以为 4.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 music 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, tentStep 12 Homework1. Search more information about Mars on the Internet.2. Preview the new words in next lesson.Reading ITeaching 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 earth and Mars.Teaching stepsStep 1 ReviewTranslate 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: Ive never thought about traveling into space.How do you like life on Mars?I thought you liked Mars.Step 2 Presentationplanet crowded polluted rapid increase (all) over again passenger 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 meaningcrowded a. for one purposerapid b. a second time from the beginningpopulation c. Decide in what way things are similar or difficultall over again d. having a nice tastepassenger e. full of peopletasty f. happening in a short period of the timespecially g. a person who rides in a car, bus, train, etc. but does not drive itcompare h. The total number of people in an area, a country, etc.Keys: e f h b g d a cStep 4 DiscussThe color of Mars: _ Redthe 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 Earththe temperature of the MarsThe lowest temperature will be -133 (degrees centigrade) and the highest will be 27 the transport to the Marsspacecraft are too slow to carry large numbers of people to MarsStep 5 Pre-readingDaniel is looking for more information on the Internet. Help him find out the links to the key words.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 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!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 readingRead the article quickly and find out the keyword of each paragraph.Para 1Para 2Para 3Para 4Para 5Para 6Para 7Keys:Para 1 Crowded, polluted (population , pollution)Para 2 TransportPara 3 Food, water and airPara 4 GravityPara 5 HomePara 6 SchoolPara 7 LifeStep 7 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. 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 boots to prevent floating.They will study at online schools with “e-teachers”.Step 8 Careful readingRead 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 the 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? 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 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 our work.There would probably be no schools on Mars. They will study at online schools with “e-teachers”.Step 9 Discuss Differences between life on Earth and life on Mars.Life on the Earth today Life on Mars in 2100It is polluted and crowed.It would be clean and have lots of space.Spacecraft are 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.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 Homework1. Read the passage aloud.2. Find out the difficult sentences and discuss them with your classmates.Reading IITeaching aims:To learn words, expressions and sentences in Reading.Step 1 ReviewReview the article and finish activity 3.Step 2 Language points1. Our own planet, the Earth, is becoming more and more crowded and polluted 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rapid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 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。句中的in the form of 的意思是 “以的形式”。如: 欢迎以钱的形式资助。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 would 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 as 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 SummaryReview 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.GrammarTeaching 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 the 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?possibility 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 sentencesWe can rewrite some adverbial clauses in simple sentences with at the age of, because of and without.转换时要注意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 food, water or oxygen.Humans cannot survive without food, water or oxygen.Exercises 1Daniel 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 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 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. 2. Yuri Gagarin 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 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 eight. 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 sentencesWe 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 3Millie knows little about the planet Mars. She is asking Daniel for more information. Rewrite Millies 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 cycle 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 theyre 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 that transport could be like on Mars?Daniel: It could be much better than that on the Earth. However, scientists arent 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.1. Are you aware _ (distance)?of the distance between Mars and the sun2. Do scientists agree _ (possibility)?about the possibility of living on Mars3. Have they thought _ (problem)?about the low gravity problem4. Are you aware _ (transport)? of the transport on the Mars5. I wonder_ (number).the number of the people who would like to move to Mars6. I think people should know _ (differences). the differences between life on Mars and that on EarthMore exercises 4把下面的宾语从句改为简单句。 1. The photos remind me that I travelled to the UK five years ago. The photos remind me of my trip to the UK five years ago.2. Are you certain that Tom is satisfied with the plan? Are you certain about Toms satisfaction with the plan?C We can rewrite some defining relative clauses in simple sentences with prepositions like with and in.People might live in houses which have huge comfortable rooms.People might live in houses with huge comfortable rooms.On Mars you might see people who wear special boots.On Mars you might see people in special boots.Exercise 5Simon is writing about Mars. Rewrite the defining relative clauses in simplesentences with prepositions with or in.1. Mars is a planet that has an environment similar to that of the earth. _ Mars is a planet with an environment similar to that of the Earth.2. Astronauts who wear space suits and helmets might stay on Mars for hours. _ Astronauts in space suits and helmets might