外研版初中英语八年级下册教案 Module 3 Unit22.docx

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1、Unit 2 We have not found Iife on any other pIanets yet.I Teaching modelReading and writing.II Teaching methodTop-down approachIIlTeaching aims1. Listen for specific information.2. Talk about space travel; participating in a role-play.3. Read and find out information from simple texts and choose the

2、best title.4. Write a passage to describe the picture.IVTeaching ObjectivesKey vocabulary: none, environment, that, solar, system, solar system, group, galapossible, take-took-taken, out, .communicateV Teaching aidsRecorder, OHP, videoVI Teaching StepsStep 1 Warming-up1. Show some pictures to review

3、 the tee pictures.3. Talk about the pictures.4. Introduce the new words.5. Read the words after the teacher.Step 2 Work in pairs.1. Enjoy News Report.2. Show some pictures to talk about something about Shenzhou-93. Ask the students to look at the picture in Activity 1.4. Work in pairs.Shenzhou-9 is

4、a manned spaceship.Step 3 Reading1. Play the recording and listen to the tape carefully.2. Ask the students to read through the passage.3. Choose the best title for it.1) Anyone out there?2) Life on the earth3) The sun and other stars4) The stars at night4. Check with a partner.5. Call back the answ

5、ers from the whole class.6. Read the text together.Step 4 Check ( V ) the true sentences.1 . Ask the students to read the sentences in Activity 3.2 ) The earth is a star.3 )The sun is a star.4 )There is more than one gala the stars in other galae to reach us.5 )Scientists have received many messages

6、 from space.6 )Spaceships have visited most of the universe.2. Read the passage again.3. Check (V ) the true sentences.4. Check with a partner.5. Call back the answers from the whole class.Keys: 1. X 2. V 3. V 4. V 5. X 6. XStep 5 Complete the passage.e. g. There are billions of stars in the Gala.银河

7、系中有数十亿颗恒星，我们的太阳只是其中的一个。2. 、However we have not found life on any other planets yet.然而上IBlt臬曷褊巢去装。，y党的意思是:还没,I havent learnt any farther information yet.步的信息。一Have you received her letter yet?你收到她的来信 了吗？3. The Earth is a planet and itlanets also go around the sun. 懿翱曼髀精转。goes around the Sun. Seven ot

8、her 曲球是赖行里,它围绕着太阳转。者用素的， 星(Jupiter)u：水星金星(Vnus)、火星(Mars)、 aturnK 天王星(Uranus)、海王星(Neptune) o4. None of them has an environment like that of the earth,soscientists do not think they will find life on them. 个有像地球这样而环境空胆中没有一none of ,因此科学家认为在他们上面找不到示(三个以上)一个也没有。作主语时，谓语曲荆里用单None of us has / have been to t

9、he Mars.我们中没一1. Ask the stuqents to reqd the words in the ox in Activty 4. communicate environmentnone solar system-|up. 八 .I2. Ask the#students to read through the passage in Activity 4. Is there life on other planets? There are seven other planets in our (1), but (2)of them has a(n) (3)like that o

10、f the earth. Spaceships from the earth have done surveys of the other planets, but they have not found ant life there. Why has no one from other planets tried to (4)with us? It is true that scientists have not discovered life orfother planets in the (5) yet, but some scientists believethat they will

11、 find it some day.3. Complete the passage with the words and expression in the box.4. Check with a partner.5. Call back the answers from the whole class.Keys: 1. solar system 2. none 3. environment 4. communicate 5. universe6. Read the passage together.Step 6 Language points1. Scientists think that

12、there has been life on Earth for hundreds of millions of years.科学家认为地球上的生命已经有亿万图品#十rbillions of Imillions of 数百万，hundreds of 数百，thousands of 成千上万，系比太帕索大得多，r、一 ， . 这里的.the Galailky Wayo而galgxy则泛指“星系j丛. Scientists have discovered a distant galaxy. 科学豕 遥远的星系。5. our solar system is a small part of a muc

13、h larger group ofstars and planets, called the Galailky Wa 在彳门的R口至百旦一小J 一一一 -3a tne uaiaiiKy way.心由恒星刊行星组成向星系的一小部分,这个星银河系或银河9 ,工鳏根现了一个6. So how large is the universe? It s impossible to imagine. 所以宇宙有多大？我们无从想象。句型：It is +形谷词+ to +动词原形，屑、 It is difficult to read these words, t 7. With so many stars in

14、 the universe,，弦辿单词很难。.are we alone, or is there|ife out there in spaced左宙中有这么多恒星，我们是孤独的吗？抑或太空中还有其他生命存在 呢？with +名词+介词短语，表示伴随情况，意思是“带着”。例如:Mr. Zhan 张老师至 alone 在地”。例如解襁is coming with a book in his hands.进程作定语只作表语，也可作副词。意思是“独自She was alone in that dark room.她独自一人呆在那黑屋子里。Step 7 Look and answer the quest

15、ions.1. Look at the picture from a science story for children in Activity 5.2. Read through the example sentences.What have the scientists just received? (a message from one of our spaceships)They have just received a message from one of our spaceships.3. Ask the students to answer the questions.1)

16、Where has the spaceship landed? (Mars)2) What has the spaceship discovered? (people on Mars)3) Why have the people on Mars not sent us a message? (do not know how to)4) Why have the people on Mars not visited us on the earth? (do not know how to)4. Check with a partner.5. Call back the answers from

17、the whole class.Keys:L It has landed on Mars.2. It has discovered people on Mars.3. They do not know how to send us a message.4. They do not know how to visit us on the earth.Step 8 Writing.Write a passage to describe the picture. Use your answers to the questions in Activity 5 to help you.We have j

18、ust received a message from our spaceship to Mars Step 9 Do er Green?一 He to Changsha.(湖南湘西)A. have been B. has gone C. has been()2. 一 Is Tom at home?、一 No, he to town.(天津)A. has been B. has goneC. goesD. will goX ) 3. Miss Brown, we cleaning our classroom. Can we gohome now?(广州)A. finish B. finishing C. are finished D. have finished( )4. A number of touristsYangzhou many times because itis such a beautiful city.(扬州)A. have been to B. has been to C. has gone to D. have gone toKeys: 1. B 2. B 3. D 4. A