Unit 13 We are trying to save the earth!教案(何)

1、【精品文檔】如有侵權(quán)，請(qǐng)聯(lián)系網(wǎng)站刪除，僅供學(xué)習(xí)與交流Unit 13 We are trying to save the earth!教案(何).精品文檔.九年級(jí)英語(yǔ)集體備課教案Unit 13 Were trying to save the earth!一、教學(xué)目標(biāo)：1. 語(yǔ)言知識(shí)目標(biāo)基本詞匯：litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, takeaway, bin, shark, fin, method, cruel. Harmful, chain, ecosystem, industry, l

2、aw, scientific, afford, reusable, transportation, recycle, napkin, upside, gate, bottle, president, inspiration, iron, work, metal, creativity, 基本詞組：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good use, pull down, bring back基本句型：Were trying to sav

3、e the earth! The river used to be so clean. The air is badly polluted. No scientific studies have showed that shark fins are good for health. We should help save the sharks. 2. 技能目標(biāo): 能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。3. 情感目標(biāo): 有環(huán)境危機(jī)意識(shí)，學(xué)會(huì)關(guān)注環(huán)境保護(hù)環(huán)境。二、教學(xué)重難點(diǎn)： 1. 教學(xué)重點(diǎn)：（1）能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used

4、 to 句型。 （2）保護(hù)環(huán)境的措施方法。2. 教學(xué)難點(diǎn)：能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。課時(shí)安排：Period1:SectionA(1a1c) Period2: SectionA(2a2d)Period3: SectionA(3a3b) Period4: SectionA(Grammar focus4c)Period5:SectionB(1a1e) Period6: SectionB(2a2b)Period7: SectionB(2c2e) Period8: SectionB(3aself-check)Unit 13 Were trying to

5、save the earth!Period1:SectionA(1a1c)一、教學(xué)目標(biāo)：1. 語(yǔ)言知識(shí)目標(biāo)基本詞匯：litter, advantage, bottom, fisherman,基本詞組：be harmful to, at the top(of sth.), 基本句型：Were trying to save the earth! The river used to be so clean. The air is badly polluted. No scientific studies have showed that shark fins are good for health.

6、 We should help save the sharks. 2. 技能目標(biāo): 能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。3. 情感目標(biāo): 有環(huán)境危機(jī)意識(shí)，學(xué)會(huì)關(guān)注環(huán)境保護(hù)環(huán)境。二、教學(xué)重難點(diǎn)： 1. 教學(xué)重點(diǎn)：（1）能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。 （2）保護(hù)環(huán)境的措施方法。2. 教學(xué)難點(diǎn)：能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。三、教學(xué)步驟:I. PresentationShow the picture of the earth and tell students the

7、earth is polluted now. For example: (1) The factories that burn coal pollute the air with a lot of black smoke.(2) Factories put waste into the river.(3) People should throw away litter in the bin. (4)There are more cars on the road.Learn some new words.II. Work on 1aHere are some words related to d

8、ifferent kinds of pollution. Write them in the box below. Then add more words.loud music cars rubbish planes littering ships factories smoking building houses mobile phonesnoise pollution air pollution water pollution _ _ _ _ _ _ _ _ _III. Listening1. Work on1b. Listen and complete the sentences.Wha

9、t was the problem?The river was _. Even the bottom (底部) of the river was full of _. There were no more _ for fishermen (漁民) to catch.What caused the problem?People are throwing _ into the river. Factories are putting _ into the river.How should the problem be solved?We should write to the _ and ask

10、them to _ the factories. Everyone should help to _ the river.2. Listen again and answer the following questions.1) What does Tony want to do later this afternoon?He wants to go swimming with Mark in the river later this afternoon.2) Why doesnt Mark want to go with Tony? Because the river was really

11、dirty. Even the bottom of the river was full of rubbish, and there were no more fish for fishermen to catch. 3) How was the river in the past? It used to be so clean. It has been the nicest river in this town.IV. Practice1. Role-play the conversation in 1c.Mark: The river was dirty. Even the bottom

12、of the river was full of rubbish.Tony: But it used to be so clean!Mark: Yes, but people are throwing litter into the river.Tony: Everyone in this town should play a part in cleaning it up!2. Make conversations using the pollution in 1a.A: The river has always been the nicest river in this town.B: Ye

13、s, it used to be so clean.A: But I was there last weekend and the river was really dirty.B: What caused the problem?A: People are throwing litter into the river.B: What should we do?A: Factories are also putting waste into the river.B: Yes, everyone in this town should play a part.A: We should write

14、 to the government and ask them to close down the factories.B: What else can we do?A: Everyone should help to clean up the river.V. Language points1. Were trying to save the earth! 我們正在竭盡全力拯救地球! try to do =try ones best to do 努力去做某事。 e.g. Well try to finish the work in a week.   

15、 我們將努力在一周內(nèi)完成這項(xiàng)工作。2. Here are some words related to different kinds of pollution. be related to 與有關(guān) e.g. Is the driver relate to the accident? 司機(jī)和這起事故有關(guān)嗎？3. .Even the bottom of the river was full of rubbish. Yes, but people are throwing litter into the river.litter 和 rubbish 都可指“垃圾”，用作不可數(shù)名詞。rubbish 指

16、“沒用的東西(被扔或?qū)⒁獊G棄的無(wú)用的東西)”不可回收。litter 指“(室內(nèi)或公共場(chǎng)所)亂扔的廢物(紙屑、不要的包裝紙、廢瓶等)”還可回收e.g. Throw the rubbish out. 把垃圾扔出去。 The room is full of rubbish. 房間里堆滿了垃圾。 Pick up your litter after a picnic. 野餐后將廢棄物收拾好。 VI. Homework: 根據(jù)句意，從方框中選擇恰當(dāng)?shù)膯卧~填空，有的需要變換形式。bin, cost, coal, fisherman, takeaway1. A hot _ fell out of the fi

17、re and burnt the carpet (地毯).2. A _ is hot cooked food that you buy from a shop or restaurant and eat somewhere else.3. Do you want this or shall I throw it in the _?4. Writing such a long novel _ much time and patience.5. Look! Some _ are catching fish over there.教學(xué)反思： 法制滲透：Unit 13 Were trying to s

18、ave the earth!Period2: SectionA(2a2d)一、教學(xué)目標(biāo)：1. 語(yǔ)言知識(shí)目標(biāo)基本詞匯： coal, ugly, cost, wooden, plastic, takeaway, bin, shark, fin,基本詞組：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good use, pull down, bring back基本句型：Were trying to save the earth! The river u

19、sed to be so clean. The air is badly polluted. No scientific studies have showed that shark fins are good for health. We should help save the sharks. 2. 技能目標(biāo): 能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。3. 情感目標(biāo): 有環(huán)境危機(jī)意識(shí)，學(xué)會(huì)關(guān)注環(huán)境保護(hù)環(huán)境。二、教學(xué)重難點(diǎn)： 1. 教學(xué)重點(diǎn)：（1）能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。 （2）保護(hù)環(huán)境的措施方法。2.

20、教學(xué)難點(diǎn)：能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。Teaching steps:I. Listening1. Work on 2a. Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.A. land pollution B. air pollutionC. noise pollution D. water pollution2. Work on 2b. Listen again and complete the sentences.1)

21、 The air is badly polluted because there are _ on the road these days.2) Factories that burn coal also _ the air with a lot of black smoke.3) There is also too much rubbish and waste. People _ things every day.4) People are also littering in _ like parks. This is turning beautiful places into ugly (

22、丑陋) ones. II. Practice (Work on 2c)Use the information in 2a and 2b to role-play conversations between Jason and Susan.Jason: The air has become really polluted around here. Im getting very worried.Susan: Yes, I used to be able to see stars in the sky.Jason: The problem is that III. DiscussionAsk st

23、udents what we should do to save the earth. Help students answer, turn off thelights when you leave a room; stop riding in cars; stop using paper towels or napkins; recycle books and paper.IV. Reading1. Read 2d and complete the chart.ProblemsSolving problemsair pollutionwaste pollutionwooden (木頭的) c

24、hopsticks or plastic forksrubbish2. Role-play the conversation.Interviewer: Jason and Susan, what are your ideas for solving these problems?Jason: Well, to cut down air pollution, we should take the bus or subway instead of driving.Susan: Yeah, or ride a bike. There are other advantages (優(yōu)點(diǎn)) of bike

25、 riding. Its good for health and it doesnt cost (花費(fèi)) anything!Interviewer: Great ideas! What about waste pollution?Susan: Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago.Jason: Me, too. Also, I never take wooden chopsticks or plastic (塑料) forks

26、 when I buy takeaway (外賣食品) food. I use the ones at home.Susan: And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.Interviewer: So together, our actions can make a difference and lead to a better future!V. Language points1. Its good for health and it do

27、esnt cost anything! cost v. 花費(fèi)；使付出 指花費(fèi)金錢，主語(yǔ)通常是物。cost的過(guò)去式和過(guò)去分詞均為cost。 e.g. The new shirt cost Mr Wang 200 yuan. 王先生花了200元買了新襯衫。 How much does the new computer cost? 新電腦花了多少錢？辨析 take, spend, pay & costtake，spend，pay和cost都可以表示“花費(fèi)”，但它們的用法各有不同。1) take多表示花費(fèi)時(shí)間，常用于It takes sb. some time to do sth.這一句型中，

28、其中it作形式主語(yǔ)。 e.g. It usually takes me 40 minutes to cook the dinner.2) spend多表示花費(fèi)時(shí)間和金錢，主語(yǔ)通常是人，常用于sb. spend(s) some time / money on sth.和sb. spend(s) some time / money (in) doing sth.兩種句型。 e.g. David spent 2,000 yuan on the new machine. My father spends an hour (in) watching the news on TV every day.3)

29、 pay多表示花費(fèi)金錢，主語(yǔ)通常是人，常用于sb. pay(s) some money for sth.句型。 e.g. Tommy paid 20 yuan for his breakfast yesterday.4) cost多表示花費(fèi)金錢，主語(yǔ)通常是物，常用于sth. cost(s) (sb.) some money. 句型。 e.g. The new dress cost Linda 80 yuan.根據(jù)句意用take, spend, pay或cost的適當(dāng)形式填空。1) That new car _ them lots of money.2) Mona _ 50 yuan

30、on the books just now.3) It usually _ me an hour to do my homework.4) You should _ some time practising your pronunciation.5) My brother _ 6, 000 yuan for the new computer yesterday.2. So together, our actions can make a difference and lead to a better future! make a difference (to) 表

31、示(對(duì))產(chǎn)生影響或作用 e.g. Learning English well can make a difference to your future. 學(xué)好英語(yǔ)會(huì)對(duì)你的前途有影響。VI. Think aboutThe earth is badly polluted. Please make a poster and think of what we can do.VII. Homework1. Copy the new words and remember them. 2. Read the listening materials of 1b, 2a.教學(xué)反思： Unit 13 Were t

32、rying to save the earth!Period3: Section A 2 (3a-3b)一、教學(xué)目標(biāo)：1. 語(yǔ)言知識(shí)目標(biāo)基本詞匯： method, cruel. Harmful, chain, ecosystem, industry, law, scientific,基本詞組：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good use, pull down, bring back基本句型：Were trying to save

33、the earth! The river used to be so clean. The air is badly polluted. No scientific studies have showed that shark fins are good for health. We should help save the sharks. 2. 技能目標(biāo): 能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。3. 情感目標(biāo): 有環(huán)境危機(jī)意識(shí)，學(xué)會(huì)關(guān)注環(huán)境保護(hù)環(huán)境。二、教學(xué)重難點(diǎn)： 1. 教學(xué)重點(diǎn)：（1）能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used t

34、o 句型。 （2）保護(hù)環(huán)境的措施方法。2. 教學(xué)難點(diǎn)：能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。三、教學(xué)步驟：I. RevisionTranslation.甚至是河底都滿是垃圾。這個(gè)小鎮(zhèn)上的每個(gè)人都應(yīng)該參加打掃。騎自行車有其它的優(yōu)點(diǎn)。我買外賣食品從來(lái)不拿木筷子和塑料叉子。II. Warming up 1. T: The earth is badly polluted. What should we do to save the earth? Lets take action. For example: Turn off the lights when you

35、leave a room; Take buses instead of driving carsRecycle books and paper.2. There are some animals are endangered. We should do something to protect the animals and the environment! III. Discussion1. What do you know about shark(鯊魚)?2. Do you think sharks can be endangered? Why?3. What do you think m

36、ight cause a fall in the number of sharks?IV. Reading1. Complete the fact sheet in 3a. Where shark fin soup is popular Number of sharks caughtand traded every yearHow much the numbers of some kinds of sharks have fallen in the last 20 to 30yearsTwo environmental groups which are against “finnin

37、g”2. Retell the passage. sharks fin soup, in southern China each time cut off no longer not onlybut also at the top drop be endangered the strongest around 70 million fallen by over 90 percent WildAid and the WWF develop laws scientific studiesV. Practice (Work on 3b) Read the passage and fill in th

38、e blanks with the words in the box.1) Many people do not realize they are killing a whole shark _ they enjoy a bowl of shark fin soup.2) Sharks are at the top of the food chain, _ if their numbers drop, the oceans ecosystem will be in danger.3) Many think that sharks are too strong to be endangered,

39、 _ they are wrong.4) _ there are no scientific studies to support this, a lot of people believe that shark fins are good for health.5) Sharks may disappear one day _ we do not do something to stop the sale of shark fins.VI. Language points1. A shark can no longer swim and slowly dies. 鯊魚不能再游泳然后慢慢死掉。

40、no longer意思是“不再”, 相當(dāng)于not any longer。 e.g. Mr Brown no longer works here. 布朗先生不再在這里工作了。 2. This method is not only cruel, but also harmful to the environment. 這種方法不但殘忍而且對(duì)環(huán)境有害。not onlybut also用于連接兩個(gè)表示并列關(guān)系的成分，著重強(qiáng)調(diào)后者，其意為“不僅而且”; 其中的also有時(shí)可以省略。e.g. 1) She not only plays well, but also writes music. 她不僅很會(huì)演

41、奏，而且還會(huì)作曲。 2) Not only men but also women were chosen. 不僅僅是男的，女的也有被選中的。 若連接兩個(gè)成分作主語(yǔ)，其謂語(yǔ)通常與靠近的主語(yǔ)保持一致。e.g. Not only you but also he has to leave. 不只是你，他也得離開。 not only放在句首，后接句子時(shí)要用倒裝結(jié)構(gòu)。 e.g. Not only had the poor man been fined, but also he had been sent to prison. 這個(gè)可憐的人不僅被罰款，而且還被送進(jìn)了監(jiān)獄。 be harmful to 對(duì) 有

42、害e.g. Smoking is harmful to the health. 吸煙有害健康。 Playing computer games much is harmful to students. 電腦游戲玩太多對(duì)學(xué)生有害。3. Sharks are at the top of the food chain in the oceans ecosystem. 鯊魚位于海洋生物系統(tǒng)食物鏈的頂部。at the top of 在.最高地位; 用最高最大的(速度, 聲音等) e.g. He shouted at the top of his voice in order that he might b

43、e heard. 他盡力大聲叫喊, 以便別人能聽見。4. If their numbers drop too low, it will bring danger to all ocean life. 如果它們的數(shù)目降至過(guò)低，會(huì)給所有海洋生物帶來(lái)危險(xiǎn)。此句復(fù)數(shù)形式的number表達(dá)全海洋中鯊魚的總量。當(dāng)表示數(shù)值的高或低時(shí)，number要用high或low修飾。e.g. In that country, the number of children going to school is higher in cities than in towns and village.在那個(gè)國(guó)家，城市兒童入學(xué)人

44、數(shù)比鄉(xiāng)鎮(zhèn)及農(nóng)村要高。常與number搭配的動(dòng)詞有g(shù)row, fall等。e.g. The number of families that own cars has been growing quickly recently. 近來(lái)?yè)碛修I車的家庭數(shù)量增長(zhǎng)很快。VII. Exercise: 根據(jù)句意及所給漢語(yǔ)提示，寫出句中所缺單詞。1. Dont play a joke on him about his weight its _(殘忍的).2. You are supposed to know the _(法律) of your own country.3. Can these toys be _

45、(回收利用)?4. These materials are widely used in _(工業(yè)).5. They walked because they couldnt _(負(fù)擔(dān)得起) a taxi.6. To solve this problem, we need to learn more _(科學(xué)的) knowledge.VIII. HomeworkWrite 5 measures to protect the environment.Unit 13 Were trying to save the earth!Period4: SectionA(Grammar focus4c)一、教

46、學(xué)目標(biāo)：1. 語(yǔ)言知識(shí)目標(biāo)基本詞匯： law, scientific, afford, reusable, transportation,基本詞組：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good use, pull down, bring back基本句型：Were trying to save the earth! The river used to be so clean. The air is badly polluted. No s

47、cientific studies have showed that shark fins are good for health. We should help save the sharks. 2. 技能目標(biāo): 能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。3. 情感目標(biāo): 有環(huán)境危機(jī)意識(shí)，學(xué)會(huì)關(guān)注環(huán)境保護(hù)環(huán)境。二、教學(xué)重難點(diǎn)： 1. 教學(xué)重點(diǎn)：（1）能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。 （2）保護(hù)環(huán)境的措施方法。2. 教學(xué)難點(diǎn)：能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語(yǔ)態(tài)，情態(tài)動(dòng)詞和used to 句型。三、Teachi

48、ng Steps:I. Revision1. Check if you know these phrases. 不同種類的污染 河底 把垃圾扔到河里 在中起作用 在中國(guó)南部 對(duì)有害 在頂部 海洋生態(tài)系統(tǒng)2. Translation. 甚至河底都滿是垃圾。 這個(gè)方法不僅殘酷還對(duì)環(huán)境有害。 鯊魚處于海洋食物鏈的頂部。 許多人相信魚翅對(duì)健康有好處。II. Grammar FocusPay attention to the sentences.1) Were trying to save the earth.2) The river used to be so clean.3) The air is

49、badly polluted.4) No scientific studies have shown that shark fins are good for health.5) We should help save the sharks.1. 現(xiàn)在進(jìn)行時(shí): Present Progressive定義：表示說(shuō)話時(shí)（瞬間）正在進(jìn)行的動(dòng)作，也表示目前或現(xiàn)階段一直進(jìn)行的動(dòng)作。結(jié)構(gòu): be (am/is/ are) + v.-ing標(biāo)志詞：Look, Listen, now, right nowe.g. Look! The boy is crying.2. used to do與be used to

50、 doingused to do sth. 表示過(guò)去常常做某事, 而現(xiàn)在往往不做了, 后接動(dòng)詞原形。be used to doing sth. 表示習(xí)慣于做某事。e.g. I used to get up at six oclock. Joe is used to drinking a cup of coffee every morning.3. 被動(dòng)語(yǔ)態(tài)：Passive voice定義：表示主語(yǔ)是動(dòng)作的承受者，即行為動(dòng)作的對(duì)象的一種語(yǔ)態(tài)。結(jié)構(gòu)：be + 過(guò)去分詞e.g. A new school was built last year. Our classroom is cleaned ev

51、ery day.4. 現(xiàn)在完成時(shí): Present Perfect定義：表示動(dòng)作已經(jīng)完成, 但對(duì)現(xiàn)在造成影響; 或者表示從過(guò)去某一時(shí)間開始一直延續(xù)到現(xiàn)在并還可能持續(xù)下去的動(dòng)作。 結(jié)構(gòu): has/have + 過(guò)去分詞標(biāo)志詞：already, yet, ever, never, since, fore.g. I havent finished my homework yet.5. 情態(tài)動(dòng)詞1) 情態(tài)動(dòng)詞本身有一定的詞義，表示說(shuō)話人的情緒、態(tài)度或語(yǔ)氣，但不能單獨(dú)作謂語(yǔ)，只能與其他動(dòng)詞構(gòu)成謂語(yǔ)。常見的有：can (could), may (might), must, need, shall (sho

52、uld), will (would)等。2) 情態(tài)動(dòng)詞無(wú)人稱和數(shù)的變化, 后接動(dòng)詞原形。否定式是在情態(tài)動(dòng)詞后面加not。個(gè)別情態(tài)動(dòng)詞有過(guò)去式形式, 可用來(lái)表達(dá)更加客氣、委婉的語(yǔ)氣。 e.g. Ken can climb up the tress like a koala. Tracy could ride a bicycle when she was five years old. You mustnt play with fire. It is dangerous.III. Practice1. Work on 4a. Fill in the blanks with the correct

53、forms of the verbs in brackets. Joe: _ you ever _ (take) part in an environmental project ?Eric: Yes, I have. I _ (help) with a Clean-Up Day last year. It was _ (consider) the biggest clean-up project this city _ ever _ (have). Joe: How many people _ (take) part?Eric: I _ (think) more than 1,000 people _ (come) to help out.Joe: Thats fantastic! I guess everyone in this city is