八年級(jí)英語(yǔ)上冊(cè) Module 3 Unit 2 We haven’t found life on other planets yet教案 外研版

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1、八年級(jí)英語(yǔ)上冊(cè) Module 3 Unit 2 We havent found life on other planets yet教案 外研版 Teaching Aims and Demands:1. Language knowledge:New words: planet, solar, also, none, environment, air, grow, grown, part, galaxy, billion, universe, light, beyond, alone, entrance, cost, prefer, solar systemKey structures: Pres

2、ent perfect tense with just, already and yet. (重點(diǎn))2.To understand passages about space travel involving present perfect tense. (難點(diǎn))3. Attitudes: We should love science and our country.Learning strategies: municative approach.Teaching Aids: Multi-Media (Tape recorder, video, OHP, handout)Teaching Pro

3、cedures:Part I: Revision1. Help students to revise what is learnt in Period one of this module.Show them some pictures about the new words in last period. Have the Ss. spell them chorally and individually.2. Revise the p.p. forms of some irregular verbs be was/were been have had had give gave given

4、sell sold sold write wrote written go went gone get got got e came e fly flew flown see saw seen do did done take took taken send sent sent eat ate eaten find found found break broke broken Part II : PreparationTask 1 : Learn the new words.Directions: Label the pictures with the words.(1). Read thro

5、ugh the words on the screen. Have the Ss. Repeat them after you. (2).Read the words separately and have them remember them. (3).Make some sentences with the words. (4) Call back the answers from the whole class.Task 2: Think about things you know about life on other planets.Directions:(1). Let the S

6、s look at the picture and the title of the unit. Read thesentence given. Elicit some more from the Ss, and note them on the board. Accept anything they give.(2). Pair the Ss to talk about life on other planets.Part III: Scanning and Skimming1.Task: Read the passage and choose the best title. Directi

7、ons:Step one: The teacher ask the Ss to read the titles.Step two: Ss read the passage and choose the best title individually.Step three: Call back the answers from the whole class, asking for reasons for their choice.2. Task: Read the passage and put the words and expressions in order in activity 3.

8、 Directions:Step one: First make sure the Ss understand what they should do. Ss read the passage and do activity 3 on page 21 individually and check with a partner.Step two: Call back the answers from the whole class, having individuals read out the answers.3. Task: Check the true sentences in activ

9、ity 4. Directions:Step one: Read through the sentences and make sure the Ss understand what they mean. Ss do activity 4 on page 21 individually and check with a partner.Step two: Call back the answers from the whole class, having individuals correct the wrong sentences.Part IV : Dealing with express

10、ions: 1. However, we havent found life on other planets yet. 然而，我們?cè)谄渌行巧线€沒(méi)有發(fā)現(xiàn)生命。 however 是副詞，一般在兩句之間，其后用逗號(hào)，表示轉(zhuǎn)折。 We have not won; however, we shall try again.我們還沒(méi)有取勝, 不過(guò)我們還要再試一下。 2.The earth is a planet and it goes around the Sun. Eight other planets also go around the Sun. 地球是行星，它圍繞著太陽(yáng)轉(zhuǎn)。還有8顆行星也圍繞著太

11、陽(yáng)轉(zhuǎn)。(1)過(guò)去一直認(rèn)為太陽(yáng)系有九大行星：水星（Mercury），金星(Venus)，地球(Earth)，火星(Mars)，木星(Jupiter)，天王星(Uranus)，海王星(Neptune)，冥王星(Pluto)。xx年，科學(xué)家一致認(rèn)定太陽(yáng)系有八大行星：水星，金星，地球，火星，木星，天王星，海王星。即去掉原來(lái)的冥王星。(2) 注意：數(shù)詞other名詞的復(fù)數(shù)，而another數(shù)詞名詞的復(fù)數(shù)。例如：I have eaten 2 apples, I would like 3 other apples.我已經(jīng)吃了2個(gè)蘋(píng)果了，我想再吃3個(gè)。I have eaten 2 apples, I woul

12、d like another 3 apples. 我已經(jīng)吃了2個(gè)蘋(píng)果了，我想再吃3個(gè)。 文章中還有一句： But scientist have discovered many other galaxies in the universe.但是科學(xué)家在宇宙中已經(jīng)發(fā)了很多其他的星系。 3.The stars we see at night are the suns in other solar systems.我們?cè)谕砩峡匆?jiàn)的星星是其他太陽(yáng)系中的恒星。 （1）we see 是定語(yǔ)，修飾The stars。 (2) sun小寫(xiě)作為普通名詞使用，表示“恒星”。如果大寫(xiě)，表示我們太陽(yáng)系中的太陽(yáng)。例如：

13、The Sun is shining. 4. With so many stars in the universe, are we alone, or is there life out there in space?宇宙中有這么多的恒星，我們是孤獨(dú)的嗎？太空中還有其他生命嗎？ With so many stars in the universe是介詞短語(yǔ)，在句子中作狀語(yǔ)，表示伴隨情況。例如：The boy ran in, with a ball in his hand.小男孩手里拿著球，跑了進(jìn)來(lái)。Part V: Language use1. Activity 5 on page 21 in

14、the WB.Direction: Ss do it by themselves .Lets see who can finish it as soon as possible. Then discuss in pairs and finally share their answers with the class. 2.Give the students some time to recall what theyve learned in this class.Part VI: Homework: Retell the text. Part VII: A test: Exercise 11 on page 146 in the WB.