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1、好好学习 天天向上Unit 13 Were trying to save the earth!Section A 1a-2d 敎學重难点學情分析:九年级學生对环境污染已经比较了解,概括能力和推理能力也有很大的提高,环境意识和社会责任感更加强烈。因此,學生对本课时的内容兴趣浓厚,参与积极。另一方面,由于學生的社会经验相对缺乏,对于怎样全方位解决环节污染问题,他们需要通过讨论活动,把语言學习和实际交流结合起来,从而形成相对完整和相对全面的认识。一、敎學目标:1. 语言知识目标重点词汇:litter,bottom,fisherman,coal,ugly,advantage,cost,wooden,p
2、lastic。重点句型: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. We should help save the sharks. 2. 技能目标: 學生能模仿听力原文,能运用听力材料中的知识,口头谈论噪音污染,空气污染,水污染,土地污染产生的因素以及如何减少这些污染。能正确运用现在进行时,现在完成时,被动语态,情态动词和
3、used to 句型。3. 情感目标: 學生能口头运用现在进行时表达环境污染的现状,运用情态动词表达应该采取的措施。 有二、敎學重难点: 1. 敎學重点:（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）保护环境的措施方法。2 敎學难点:现在进行时,情态动词和used to 句型。【课前准备】收集有关环境污染的资料、准备录音机、多媒体课件,學案【敎學方法】任务型敎學法、情景交际法、自主學习和合作學习相结合。三、整体设计敎學过程设计I. PresentationShow the picture of the earth and tell students
4、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. (4)There are more cars on the road.II. LearningHere are some words related to different kinds of p
5、ollution. 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 _ _ _ _ _ _ _ _ _Keys: noise pollution loud music planes mobile phones building housesair pollution f
6、actories smoking cars building houseswater pollution ships rubbish littering factoriesIII. Listening1. 1b Listen and complete the sentences.What was the problem?The river was _. Even the bottom (底部) of the river was full of _. There were no more _ for fishermen (渔民) to catch.What caused the problem?
7、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 them to _ the factories. Everyone should help to _ the river.Keys: really dirty rubbish fish litter waste governmentclose down clean up2. Listen again and ch
8、eck () 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. Practice1. Role-play the conversation in 1c.Mark: The river was dirty. Even the bottom of th
9、e 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: Yes, it
10、 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 to t
11、he 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! 我们正在竭尽全力拯救地球! try to do =try ones best to do 努力去做某事。 e.g. Every student should try to study hard in order to study in a univ
12、ersity. 为了进入大學學习,每个學生都应该努力學习。2. Here are some words related to different kinds of pollution. be related to 与有关 e.g.I am notrelatedtohim 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 在方面起作用 e.g. A good diet plays a large part in helping people liv
13、e longer. 健康的饮食在帮助人们长寿方面起着非常大的作用。play a part 在中扮演角色 e.g. He was invited to play a part in this TV play. 他被邀请参加这个电视剧的演出。4. 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”,用作不可数名词。rubbish 指“没用的东西(被扔或将要丢弃的无用的东西)”不可回收。litter 指
14、“(室内或公共场所)乱扔的废物(纸屑、不要的包装纸、废瓶等)”还可回收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. 野餐后将废弃物收拾好。 VI. Listening1. 2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.A. land pollution B. air pollutionC.
15、 noise pollution D. water pollutionKeys: B A2. 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 much rubbish and waste. People _ things every da
16、y.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 places3. Listen and answer the questions.1) Who is the interviewer talking to?2) What are they talking?3) What other problems do they see?Keys: Susan
17、 and Jason.The environmental problems.Theres 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 getting very worried.Susan: Yes, I used to be able to
18、 see stars in the sky.Jason: The problem is that VIII. DiscussionAsk students 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.IX. Reading1. Read 2d and complete the c
19、hart.ProblemsSolving problemsair pollutionwaste pollutionwooden (木头的) chopsticks 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 drivi
20、ng.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 pollution?Susan: I think simple things like bringing a bag to go shopping can help. I started doing that a year ago.Jason: M
21、e, too. Also, I never take wooden chopsticks or plastic (塑料) forks when I buy takeaway (外卖食品) 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
22、a better future!X. Summary and language points1. 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。 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
23、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 & costtake,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 takes 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. s
24、pend(s) some time / money on sth.和sb. spend(s) some time / money (in) doing sth.两种句型。 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) pay多表示花费金钱,主语通常是人,常用于sb. pay(s) some money for sth.句型。 e.g. Tommy paid 20 yuan for his breakfast ye
25、sterday.4) cost多表示花费金钱,主语通常是物,常用于sth. cost(s) (sb.) some money. 句型。 e.g. The new dress cost Linda 88 yuan.根据句意用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
26、 pronunciation.5) My brother _6, 000 yuan for the new computer yesterday.Keys cost spent takes spend paid3. 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? 你认为
27、他的话会对最后的决定产生影响吗？ The new teacher always encourages little Tom. This has made a big difference to him.新来的老师总是鼓励小汤姆,这对他影响很大。XI. Exercises用动词的适当形式填空。1) Were trying _ (save) the earth.2) There used to_ (be) clean and beautiful.3) There are too many _ for _to catch (fish).4) Its bad for environment to us
28、e _ (wood) chopsticks.Keys: to save be fish fishermen woodenXII. Think aboutThe earth is badly polluted. Please make a poster and think of what we can do.XIII. Homework1. Copy the new words and remember them. Try to memorize the new words and language points.2. Listening to the materials of 1b, 2b .
29、 Then recite them.3. The earth is badly polluted. Please think of what we can do to save the earth and make a poster to tell more people to save the earth.板书设计Unit 13 Were trying to save the earth ! Section A 1a-2d Forms of pollution Causes Air pollution Factories, cars, burning. Water pollution Fac
30、tories, rubbish, ships. Land pollution Rubbish, batteries. Noise pollution Loud music , crowds, cars. 敎學反思本课主要以學生的听和说为任务,围绕水污染,空气污染和土地污染的表现,污染原因,以及治理措施,由浅入深,层层递进。视频的应用,极大地提高了學生的兴趣,增强了他们拯救地球的责任感,也提供了他们参与课堂的积极性。听力活动的听前准备设计合理,为學生顺利完成听力任务做好了铺垫。敎學重点和难点是运用现在进行时,现在完成时,被动语态结构,情态动could等和used to do something结
31、构,进行表达。學生通过听、读、角色扮演、练习和总结,在活动中掌握了敎學重点,突破了难点。Unit 13 Were trying to save the earth!Period 1 1a-2d 學案學案设计 【课型】 听说课學习目标1.能听懂什么是水污染、土地污染和空气污染,引起这三种污染的因素,以及解决污染的措施。2.能模仿听力原文,能运用听力材料中的知识,口头谈论噪音污染、空气污染、水污染、土地污染的产生因素及如何减少这些污染。3.能掌握本课重点词汇:litter,bottom,fisherman,coal,ugly,advantage,cost,wooden,plastic。4.能口头运
32、用现在进行时表达环境污染的现状,运用情态动词表达应该采取的措施。學习过程【自主學习】1.请在课前会拼读并熟记下面的单词。litter,bottom,fisherman,coal,ugly,advantage,cost,wooden,plastic2.请在课前观察第97页的图片,并思考和搜集有关噪音污染,空气污染和水污染的产生因素。noise pollution:air pollution:water pollution:【新课导入】1.Have a free talk about pollution.2.What can cause each kind of pollution?【新知呈现】A
33、sk students to look at the pictures in 1a and ask them two questions:What can you see in each picture?What kind of pollution does it cause? 【新知學习】Teacher can ask students the following question:What else can cause each kind of pollution?Then ask students to fill in the chart below.PollutionCausesAir
34、pollutionWaterpollutionNoisepollutionLandpollution 【拓展提升】Write a passage about different kinds of pollution.There are mainly four kinds of pollution.They are air pollution,noise pollution,water pollution and land pollution.The air is polluted because .Theres also some noise pollution.There are many
35、causes,such as .And the water pollution is caused by .Some land is polluted because . 【跟踪训练】根据句意用take,spend,pay或cost的适当形式填空1.This house us lots of money. 2.My mother 300 yuan on her new dress. 3.It usually me 15 minutes to walk home from my office. 4.It is worth some time taking exercise every day.
36、5.I 1,000 yuan for the new bike yesterday. 【课堂练习】用动词的适当形式填空1.The river used to (be) really clean. 2.There are no more fish for to catch (fisherman). 3.Everyone should play a part in (clean) it up! 4.Using (wood) chopsticks is bad for the environment. 5.There are other (advantage) of bike riding. 6.People are (throw) litter into the river. 课堂小结學生先自主學习,再以四人一组形式展开讨论:1.本课學习了哪些重点、难点内容?2.对节课还有哪些疑问 ?自我反思1.我的收获:Words and expressions: Sentence-2.學习本节课后,我能用英语进行 . 3.我的易错点: . 参考答案 【跟踪训练】1.cost 2.spent 3.takes 4.spending 5.paid【课堂练习】1.be 2.fishermen 3.cleaning 4.wooden 5.advantages 6.throwing7