英语人教版九年级全册Unit 13 SectionA(1a-2d).doc

Unit13 We are trying to save the earth.教学设计1. 教学目标 1.掌握下列单词:litter,bottom,fisherman,coal,ugly,advantage,cost,wooden,plastic,takeaway,bin2.理解并掌握下列句子:But it used to be so clean!The air has become really polluted around here.So together, our actions can make a difference and lead to a better future!3.复习一些语法:现在进行时、一般现在时、used to表示的一般过去时、现在完成时、一般过去时的被动语态。2. 教学重点/难点 【教学重点】1.本课时的重点单词和短语 2.时态复习【教学难点】1.训练学生的听力理解能力。2.训练学生的语言交际能力。3. 教学用具 多媒体设备 教学过程 Step 1Warming up1.Check homework.2.New words(1)Read the new words together.(加强读音训练)(2)Ask some individuals to read the new words.(发现读音问题,正音)(课前朗读可使学生快速进入学习状态,养成良好的学习习惯。)Step 2Leading in Show the students some pictures about pollution.What kind of pollution do you know?What causes the pollution? (通过问题导入,激发学生兴趣。)Here are some words related to different kinds of pollution.Write them in the box below.Then add more words.Step 3ListeningBefore listeningNowadays many rivers have become polluted.What do you think can cause river pollution?What should we do to stop the rivers being polluted?(大脑风暴,打开学生思维,初步感知目标语言。)While listeningListen and complete the sentences in 1b.Check the answers with the students.Answers:1.The river was really dirty.Even the bottom ofthe river was full of rubbish.There were no more fish forfishermen to catch.2.People are throwing litter into theriver.Factories are putting waste into the river.3.We should write to the government and ask themto close down the factories.Everyone should help to clean up theriver.After listeningRead the conversation aloud.(进一步感知文本内容)Step 4Pair workGet the students to read the sampleconversation and then make up their own conversations.Ask some pairs to present their conversations.(输出目标语言,对目标语言进行综合训练,体现语言的交际功用。)Language items1.be full of =be filled with充满;装满如:Her eyes were full of tears.她眼泪汪汪的。2.play a part in表示“参与,起作用”如:Everyone should play a part in protectingthe environment每个人都应保护环境。(精讲知识点,辅以造句进行充足练习,使学生掌握并能灵活运用。)Step 5 Listening(多层操练,对教材实行一材多用,多角度感知语言目标,为2c的语言输出做铺垫。)Before listeningWhich do you think is the most terrible pollution?I think the most terrible pollution is airpollution.What do you think can cause air pollution?(大脑风暴,打开学生思维,感知目标语言。)While listeningListen for the first time and circle the kinds ofpollution that Jason and Susan talk about.Answer:A,BListen 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 day.4.People are also littering in like parks.This is turning beautiful places into ugly ones.Answers:1.more cars2.pollute3.are throwing away4.public placesAfter listeningPair work (输出目标语言,对目标语言进行综合训练,体现语言的交际功用。)Get the students to practice conversations using theinformation in 2a and 2b.Read the sample conversation aloud first, then role-play their own conversation.Ask some pairs to present their conversations.Step 6ReadingPre-readingWhat can we do to reduce air pollution?(大脑风暴,打开学生思维,感知目标语言。)While-readingLets read the conversation quickly andanswer the question :What are they talking about?(快速阅读,初步感知文本内容。)Read again and complete the chart.(通过表格引导学生理解和学习文本,利用答案让学生学说目标语言;通过表格做小结,提炼key words。)Post-readingLanguage items1.cut down(1)砍倒 eg.They cut down the big tree.他们把这棵大树砍倒了。(2)削减 eg.He tried to cut down on smoking but failed.他试图少抽烟,但失败了。2.make a difference对有影响Does his idea make a difference to your work?他的意见对你的工作会有影响吗?3.leadled(过去式)(1)(道路)等通往如:All roads lead to Rome.条条大路通罗马。(2)lead to引起(结果等)如:Hard work can lead to success.努力工作会通向成功。(3)lead sb.to s.p.“引导、带领某人去某地”。如:I led him to the exit.我把他带到出口。(精讲知识点,使学生掌握并能灵活运用。)Step 7SummaryHave the students give a summary.(总结本节课的学习内容,让学生对本节课的学习内容有一个清晰的概念,以便于学生课下复习。)HomeworkReview the new language items.Write a short passage about how to reduce pollution.一、根据句意及首字母提示完成单词1.There are some beautiful flowers at the b of the valley(山谷).2.The f makes aliving by fishing.3.The new bike c me 400 yuan.4.We should bring a shopping basket instead of p bags when we are shopping.5.We should throw the l in the bins and keep our school clean and beautiful.Answers:1.bottom2.fisherman3.cost 4.plastic5.litter二、根据汉语提示完成句子1.我们应减少使用纸巾。We should on using napkins.2.大雨对农作物有影响吗?Does the heavy rain to the crops?3.英语老师经常用有趣的故事导入新课。The English teacher