2022年人教版九年级英语Unit13Wearetryingtosavetheearth教案

1、人教版新目标九年级英语（全一册）Unit 13 We re trying to save the earth. 一、教学目标：1. 语言学问目标 基本词汇 ：litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, takeaway, bin, shark, fin, method, cruel. Harmful, chain, ecosystem, industry, law, scientific, afford, reusable, transportation, recycle, napkin, u

2、pside, gate, bottle, president, inspiration, iron, work, metal, creativity, 基本词组 ：be harmful to, at the topof sth., take part in, turn off, take action, throw away, put sth. to good use, pull down, bring back 基本句型 ：We re trying to save the earth. The river used to be so clean. The air is badly pollu

3、ted. No scientific studies have showed that shark fins are good for health. We should help save the sharks. 2. 技能目标 : 能正确运用现在进行时,现在完成时,被动语态,情态动词和 used to 句型；3. 情感目标 : 有环境危机意识,学会关注环境爱护环境；二、教学重难点：1. 教学重点：（1）能正确运用现在进行时,现在完成时,被动语态,情态动词和 used to 句 型；（2）爱护环境的措施方法；2. 教学难点：能正确运用现在进行时,现在完成时,被动语态,情态动词和 used t

4、o 句型；三、教学步骤 : Section A 1 1a-2d I. Presentation Show the picture of the earth and tell students the 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. 4There

5、 are more cars on the road. II. Learning Here are some words related to different 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 phones noise pollution air pollution water pollution 第 1 页 共

6、 18 页名师归纳总结大肚能容,容学习困难之事,学习有成第 1 页,共 18 页人教版新目标九年级英语（全一册）_ _ _ _ _ _ _ _ _ _ _ _ III. Listening 1. 1b Listen and complete the sentences. What was the problem. What caused the problem. How should the problem be solved. The river was _. Even the bottom 底 部 of the river was full of _. There were no more

7、 _ for fishermen 渔民 to catch. People are throwing _ into the river. Factories are putting _ into the river. We should write to the _ and ask them to _ the factories. Everyone should help to _ the river. Keys: really dirty rubbish fish litter waste government close down clean up 2. Listen again and c

8、heck the sentences you hear. 1 We could go fishing in the river. 2 The river was really dirty. 3 The river has always been the nicest river in this town. 4 We should ask the teachers for help. Keys: 2 3 IV. Practice 1. Role-play the conversation in 1c. Mark: The river was dirty. Even the bottom of t

9、he 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:

10、Yes, 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 sho

11、uld write 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 points 1. We re trying to save the earth.我们正在竭尽全力挽救地球 . try to do =try ones best to do 努力去做某事；第 2 页 共 18 页名师归纳总结大肚能容,容学习困难之事,学习有成第 2 页,共 18 页人教版新目标

12、九年级英语（全一册）e.g. Every student should try to study hard in order to study in a university. 2. Here are some words related to different kinds of pollution. be related to 与 有关e.g. I am not related to him in any way. 我和他无任何关系；3. Everyone in this town should play a part in cleaning it up. play a part in 在

13、 方面起作用e.g. A good diet plays a large part in helping people live longer. play a part 在 中扮演角色e.g. He was invited to play a part in this TV play. 4. Even the bottom of the river was full of rubbish. Yes, but people are throwing litter into the river. 他被邀请参与这个电视剧的演出；litter 和 rubbish 都可指 “ 垃圾 ” ,用作不行数名词

14、；rubbish 指“没用的东西 被扔或将要丢弃的无用的东西 ”不行回收；litter 指“ 室内或公共场所 乱扔的废物 纸屑、不要的包装纸、废瓶等 ”仍可回收e.g. Throw the rubbish out. 把垃圾扔出去；The room is full of rubbish. 房间里堆满了垃圾；Pick up your litter after a picnic. VI. Listening 野餐后将废弃物整理好；1. 2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk

15、 about. A. land pollution B. air pollution C. noise pollution D. water pollution Keys: B A 2. 2b Listen again and complete the sentences. 1 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 m

16、uch rubbish and waste. People _ things every day. 4 People are also littering in _ like parks. This is turning beautiful places into ugly 丑陋 ones. Keys: more cars pollute are throwing away public places 3. Listen and answer the questions. 1 Who is the interviewer talking to. 2 What are they talking.

17、 3 What other problems do they see. Keys: Susan and Jason. The environmental problems. There s too much rubbish and waste in the streets.VII. Practice 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 get

18、ting very woSusan: Yes, I used to be able to see stars in the sky. Jason: The problem is that VIII. Discussion Ask students what we should do to save the earth. Help students answer, turn off the 第 3 页 共 18 页名师归纳总结大肚能容,容学习困难之事,学习有成第 3 页,共 18 页人教版新目标九年级英语（全一册）lights when you leave a room; stop riding

19、 in cars; stop using paper towels or napkins; recycle books and paper. IX. Reading 1. Read 2d and complete the chart. Problems Solving problems air pollution waste pollution wooden 木头的 chopsticks or plastic forks rubbish 2. Role-play the conversation. Interviewer: Jason and Susan, what are your idea

20、s 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 优点 of bike riding. Its good for health and it doesnt cost 花费 anything. Interviewer: Great ideas. What about waste polluti

21、on. 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 外卖食品 food. I use the ones at home. 塑料 forks when I buy takeaway Susan: And remember to throw rubbish in the bins and kee

22、p public places clean and beautiful for everyone. Interviewer: So together, our actions can make a difference and lead to a better future. X. Summary and language points 1. This is turning beautiful places into ugly ones. turn into 把 变成 e.g. The icy rain seemed like to turn into snow. 渐渐地冻雨又变成雪花的模样；

23、2. Its good for health and it doesnt cost anything.cost v. 花费；使付出指花费金钱,主语通常是物；cost 的过去式和过去分词均为 cost；e.g. The new shirt cost Mr Wang 200 yuan. 王先生花了 200 元买了新衬衫；How much does the new computer cost. 新电脑花了多少钱？take, spend, pay & cost take,spend,pay 和 cost 都可以表示 “花费 ” ,但它们的用法各有不同；1 take 多表示花费时间,常用于It take

24、s sb. some time to do sth. 这一句型中,其中it 作形式主语；e.g. It usually takes me 40 minutes to cook the dinner. 2 spend 多表示花费时间和金钱,主语通常是人, 常用于 sb. spends some time / money on sth.和 sb. spends some time / money in doing sth. 两种句型；e.g. David spent 2,000 yuan on the new machine. 第 4 页 共 18 页名师归纳总结大肚能容,容学习困难之事,学习有成

25、第 4 页,共 18 页人教版新目标九年级英语（全一册）My father spends an hour in watching the news on TV every day. 3 pay 多表示花费金钱,主语通常是人,常用于sb. pays some money for sth.句型；e.g. Tommy paid 20 yuan for his breakfast yesterday. 4 cost 多表示花费金钱,主语通常是物,常用于 e.g. The new dress cost Linda 88 yuan. sth. costs sb. some money. 句型；依据句意用

26、take, spend, pay 或 cost 的适当形式填空；1 That new car _ them lots of money. 2 Mona _ 50 yuan 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. Keys cost spent takes spend pai

27、d 3. So together, our actions can make a difference and lead to a better future. make a difference to 表示 对 产生影响或作用 e.g. Do you think his words would make any difference to the final decision. The new teacher always encourages little Tom. This has made a big difference to him. XI. Exercises 用动词的适当形式填

28、空；1 Were trying _ save the earth.2 There used to_ be clean and beautiful. 3 There are too many _ for _to catch fish. 4 It s bad for environment to use _ wood chopsticks.Keys: to save be fish fishermen wooden XII. Think about The earth is badly polluted. Please make a poster and think of what we can

29、do. XIII. Homework 1. Copy the new words and remember them. 2. Read the listening materials of 1b, 2a. 板书设计教学反思第 5 页 共 18 页名师归纳总结大肚能容,容学习困难之事,学习有成第 5 页,共 18 页人教版新目标九年级英语（全一册）Section A 2 3a-3c I. Revision 1 Role-play 2d. 2 Translate these sentences into English. 甚至是河底都满是垃圾；这个小镇上的每个人都应当参与打扫；骑自行车有其它的优点

30、；我买外卖食品从来不拿木筷子和塑料叉子；II. Lead in 1 Teacher tells students the earth is badly polluted. What should we do to save the earth. Let s take action. For example: Turn off the lights when you leave a room; Take buses instead of driving cars Recycle books and paper. 2 There are some animals are endangered. W

31、e should do something to protect the animals and the environment. III. Discussion 1 Have you ever seen a shark. 2 What do you know about sharks. IV. Reading 1 Sharks are endangered, read the passage and judge the sentences. s fin（鱼鳍） soup is famous and expensive all around the world. SharkWe have to

32、 kill a whole shark to get a bowl of sharks fin soup.People cut off sharks fins and throw the sharks back into the ocean. Sharks are in the bottom of the food chain in the oceans ecosystem.Wild Aid and the WWF are environmental protection groups in China. Sharks fin s are good for health.2 Complete

33、the fact sheet in 3a. Where shark fin soup is popular Number of sharks caught and traded every year How much the numbers of some kinds of sharks have fallen in the last 20 to 30 years Two environmental groups which are against “finning”V. Practice 3b 1 Read the passage and dill in the blanks with th

34、e 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 ocean s ecosystem will be in danger. 3. Many think that sharks are too strong to be endangered, _ they are

35、wrong. 4. _ there are no scientific studies to support this, a lot of people believe that 第 6 页 共 18 页名师归纳总结大肚能容,容学习困难之事,学习有成第 6 页,共 18 页人教版新目标九年级英语（全一册）shark fins are good for health. 5. Sharks may disappear one day _ we do not do something to stop the sale of shark fins. 2 Retell the passage accor

36、ding to the words below. shark s fin soup, in southern China each time cut off no longer not only but also at the top drop be endangered the strongest around 70 million fallen by over 90 percent Wild Aid and the WWF develop laws scientific studies VI. Language points 1. A shark can no longer swim an

37、d slowly dies. 鲨鱼不能再游泳然后渐渐死掉；no longer 意思是 “不再 ” e.g. Im no longer a student. 我不再是个同学了；有两个短语和 no longer 同义,即 not any longer 和 not any more,但他们侧重的方面不同；no longer 和 not any longer侧重时间；e.g. He no longer lives here.= He doesnt live here any longer. 他不在这儿居住了；一个时间以前他住在这儿,过了这个时间,他就离开了； not any more侧重侧重程度和数量

38、e.g. You can drink no more. = You cant drink any more.你不能再喝了；喝酒的量到了肯定程度,不能再连续下去了； 2. This method is not only cruel, but also harmful to the environment. not only but also着重强调后者, 其意为 “不仅 而且 ”; 其中的用于连接两个表示并列关系的成分,also 有时可以省略；e.g. 1 She not only plays well, but also writes music. 她不仅很会演奏,而且仍会作曲；2 Not o

39、nly men but also women were chosen. 不仅仅是男的,女的也有被选中的；如连接两个成分作主语,其谓语通常与靠近的主语保持一样；e.g. Not only you but also he has to leave. 不只是你,他也得离开；not only 放在句首,后接句子时要用倒装结构；e.g. Not only had the poor man been fined, but also he had been sent to prison. be harmful to 对 有害 e.g. Smoking is harmful to the health. 吸烟

40、有损健康；Playing computer games much is harmful to students. 电脑嬉戏玩太多对同学有害；3. Sharks are at the top of the food chain in the oceans ecosystem.鲨鱼位于海洋生物系统食物链的顶部；at the top of 在.最高位置 ; 用最高 最大 的速度 , 声音等 e.g. I looked at the top of his head, his hair shiny and parted smoothly. He shouted at the top of his voi

41、ce in order that he might be heard. 4. If their numbers drop too low, it will bring danger to all ocean life. 假如它们的数目降至过低,会给全部海洋生物带来危急；此句复数形式的number 表达全海洋中鲨鱼的总量；当表示数值的高或低时,number 要用high 或 low 修饰；第 7 页 共 18 页名师归纳总结大肚能容,容学习困难之事,学习有成第 7 页,共 18 页人教版新目标九年级英语（全一册）e.g. In that country, the number of childr

42、en going to school is higher in cities than in towns and village. 在那个国家,城市儿童入学人数比乡镇及农村要高；常与 number 搭配的动词有 grow, fall 等；e.g. The number of families that own cars has been growing quickly recently. 5. Environment protection groups around the world, such as WildAid and the WWF, are teaching the public

43、about “finning”. finning 由动词化的fin （割鲨鱼鳍以猎取鱼1 句中 fin 本为名词,指“鱼鳍 ”；此句中的翅）的 -ing 形式转化而成,指课文中所陈述的 2 WildAid 和 WWF 组织“猎翅 ” 这一行为；WildAid （美国野生救援协会）是爱护野生动物及栖息地环境的一个非盈利性的机构,1999年注册成立,其宗旨是爱护及救助世界范畴内的野生动物；WWF （世界自然基金会）英文全称为 World Wide Fund for Nature,成立于 1961 年,是享有国际盛誉,全球最大的独立性非政府环境爱护组织之一；VII. Homework Write 5

44、 measures to protect the environment. 板书设计教学反思Section A 3 Grammar Focus-4c I. Revision 1. Check if you know these phrases. 不同种类的污染 河底 把垃圾扔到河里 在 中起作用 在中国南部 对 有害 在 顶部 海洋生态系统2. Translate these sentences into English. 甚至是河底都满是垃圾； 这个方法不仅残酷仍对环境有害； 鲨鱼处于海洋食物链的顶部； 很多人信任鱼翅对健康有好处；第 8 页 共 18 页名师归纳总结大肚能容,容学习困难之事

45、,学习有成第 8 页,共 18 页人教版新目标九年级英语（全一册）II. Grammar Focus Pay attention to the sentences. 1 Were trying to save the earth.2 The river used to be so clean. 3 The air is badly polluted. 4 No scientific studies have shown that shark fins are good for health. 5 We should help save the sharks. 1. 现在进行时 : Presen

46、t Progressive 定义：表示说话时（瞬时）正在进行的动作,也表示目前或现阶段始终进行的动作；结构 : be am/is/ are + v.-ing 标志词： Look, Listen, now, right now e.g. Look. The boy is crying. 2. used to do 与 be used to doing used to do sth. 表示过去经常做某事 , 而现在往往不做了 , 后接动词原形；be used to doing sth. 表示习惯于做某事；clock. e.g. I used to get up at six o Joe is us

47、ed to drinking a cup of coffee every morning. 3. 被动语态： Passive voice 定义：表示主语是动作的承担者,即行为动作的对象的一种语态；结构： be + 过去分词e.g. A new school was built last year. Our classroom is cleaned every day. 4. 现在完成时 : Present Perfect 定义： 表示动作已经完成 , 但对现在造成影响 ; 或者表示从过去某一时间开头始终连续到 现在并仍可能连续下去的动作；结构 : has/have + 过去分词 标志词： al

48、ready, yet, ever, never, since, fore.g. I havent finished my homework yet.5. 情态动词 1 情态动词本身有肯定的词义,表示说话人的心情、态度或语气,但不能单独作谓语,只能与其他动词构成谓语；常见的有：should, will would 等；can could, may might, must, need, shall 2 情态动词无人称和数的变化, 后接动词原形；否定式是在情态动词后面加not；个别情态动词有过去式形式, 可用来表达更加客气、委婉的语气；e.g. Ken can climb up the tress

49、like a koala. Tracy could ride a bicycle when she was five years old. You mustn t play with fire. It is dangerous.III. Practice 1. Work on 4a. Fill in the blanks with the correct forms of the verbs in brackets. Joe: _ you ever _ take part in an environmental project . Eric: Yes, I have. I _ help wit

50、h a Clean-Up Day last year. It was _ consider the biggest clean-up project this city _ ever _ have. Joe: How many people _ take part. 第 9 页 共 18 页名师归纳总结大肚能容,容学习困难之事,学习有成第 9 页,共 18 页人教版新目标九年级英语（全一册）Eric: I _ think more than 1,000 people _ come to help out. Joe: Thats fantastic. I guess e veryone in t

51、his city is _ try to improve the environment. Eric: Yes, we cant afford to _ wait any longer to take action.Learn some new words and expressions. 2. Work on 4b. Fill in the blanks with the appropriate modal verbs from the box. The words are: can, would, could, have to, should, must, may/might People

52、 _ think that big things _ be done to save the earth. Many forget that saving the earth begins with small things. For example, you _ save electricity by turning off the lights when you leave a room. You _ also use reusable bags instead of plastic bags. I think its a great idea that you now _ pay for

53、 plastic bags in some stores. And instead of driving to school or work, you _ ride your bi ke or walk. If its far, you _ take the bus. All these small things _ add up and become big things that _ improve the environment. Lets take action now.Learn some new words and expressions. 3. Work on 4c. Make

54、a list of things that people can do to help the environment and discuss your list with your partner. use public transportation n.交通运输 ; turn off the lights when you leave a room; use reusable bags instead of plastic bags; ride your bike or walk to school or work; stop using paper napkins; recycle bo

55、oks and paper 4. Discussion. A: I think that everyone should use public transportation. B: I disagree. Its difficult for parents with young children to use public transportationIV. Language points1. We cant afford to wait an y longer to take action. afford v. 承担得起；供应 , 赐予afford to do sth. 常与 can, be

56、 ble to 连用 买得起；有足够的 e.g. We cant afford to pay such a price. 我们付不起这个价钱；Dancing affords us pleasure. 跳舞给我们带来欢快；2. save electricity by turning off the lights when you leave a room. turning off 关掉e.g. Please turn the television off before you go to bed. 睡觉前请关掉电视；拓展： turn 相关短语turn around 转身turn up 调高（音量

57、）turn down 调低；拒绝turn into 变成；进入turn on 打开,发动turn off 关掉,关闭第 10 页 共 18 页名师归纳总结大肚能容,容学习困难之事,学习有成第 10 页,共 18 页人教版新目标九年级英语（全一册）turn out to be 结果是 turn over 移交 V. Homework Finish the exercises in the workbook. 板书设计教学反思Section B 1 1a2e I. Revision Role-play this conversation. A: I think that everyone shou

58、ld use public transportation. B: I disagree. Its difficult for parents with young children to use public transportationA: But we can do other things. For example, we can go to school on foot. B: You are right. We should turn off the lights when we leave the room. II. Leading in 1 Tell students we sh

59、ould do these things to protect the environment. Turn off the lights when you leave a room; Stop riding in cars; Stopping using paper towels or napkins; Recycle books and paper. Turn off the shower while you are washing your hair. You can help reduce pollution by putting that soda can in a different

60、 bin. Dont use paper napkins.2What can we do to help save the earth. Rank these items from the easiest 1 to the most difficult5. 1a _stop riding in cars _recycle books and paper _turn off the lights when you leave a room _turn off the shower while you are washing your hair _dont use paper napkins 3