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1、Unit 8 Were trying to save the earth!The First Period Section A 1a2c【Teaching aims】 一、听、说、读、写以下词汇及词组：litter, bottom, fisherman, coal, public, ugly, advantage, cost, wooden, plastic, the bottom of, make a difference 二、通过学习，口、笔头掌握下列句型：1) The river used to be so clean.2) People are throwing litter into
2、 the river.3) It has always been the nicest river in this town.4) We should write to the government.5) I think one problem is that the air is badly polluted. 三、1. 能听懂关于环境污染和环境保护的听力材料。 2. 能正确运用现在进行时态，used to结构，现在完成时态， 被动语态和情态动词谈论环境污染和环境保护。四、通过谈论环境污染，学生能培养自己的环保意识。做到：保护环境，从我做起，从小事做起。 Difficulties：能正确运用
3、现在进行时态，used to结构，现在完成时态， 被动语态和情态动词谈论环境污染和环境保护。【Teaching steps】 Before listeningWarm-up and revision（课堂热身和复习）1. Have Ss watch the video and discuss:What is the video about? 2. Look at the pictures and answer the question: What are they about? How many kinds of pollution do these pictures show?教学设计说明：
4、创设情景，导入新课。While listeningPresentation（呈现新知识）1. Group work.The air isnt clear There are more and more cars and factories We should There are all kinds of noises in our lives.People have more modern machines.We should 教学设计说明:练习本课重点短语句型，同时，对后面听力的进行预测。降低听力难度。2. 听1b录音一遍，回答下面的问题：What kind of pollution are
5、 Tony and Mark talking about? _ 3. Work on 1b. Listen and complete the sentences.What was the problem?The river was _. Even the bottom of the river was full of _. There were no more _ for fisherman to catch .What caused the problem?People are throwing _ into the river.Factories are putting _ into th
6、e river.How should the problem be solved?We should write to the _ and ask them to _ the factories. Everyone should help to _ the river.4. 模仿秀:跟读模仿，注意语音语调。5. Pair workWork on 1c. 根据听力材料，练习下列对话：根据1b的表格提示，和同伴分角色表演Tony和 Mark的对话。结合1a的内容，再任选一种污染表演对话。 Mark: The river was dirty. Even the bottom of the river
7、 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!教学设计说明:进一步启发学生思维，再次对下一段听力进行预测。6. Work on 2a.Listen to Jason and Susan talk about pollution. Then circle the kinds of polluti
8、on that they talk about. 7. 听第二遍录音，判断下面句子的正、误。1) Jason thinks that the air is badly polluted. ( )2) Susan used to see the mountains clearly. ( )3) People are also littering in public places. ( ) 4) They think that they can do nothing to help. ( ) 5) They are talking about the noise pollution. ( ) 教学
9、设计说明:通过听模仿自主对话，进一步巩固本课功能句。8. 观察与思考1) Jason thinks that the air is badly polluted. 2) Susan used to see the mountains clearly. 3) People are also littering in public places. 4) They think that they can do nothing to help. 5) They are talking about the noise pollution. 观察上面的黑体字内容，它们分别对应了几种时态或语态？1._ 2.
10、_ 3._ 4._ 5._。你能归纳出这几种时态或语态的结构吗？1._ 2._ 3._ 4._ 5._。 9. Work on 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
11、_ things every day.4. People are also littering in _ like parks. This is turning beautiful places into ugly ones.10. 跟读录音，注意模仿孩子们描述污染时气愤的语音与语调。 11. 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
12、 getting very worried.Susan: Yes, I used to be able to see stars in the sky.Jason: The problem is that 完成学习目标三。After listening1. Group work: 我们该如何做来减少污染？ What should we do? 1. We should take _ or _ instead of driving.2. We should also _ _ _. Its good for health!3. Bring _ to go shopping.4. Never tak
13、e _ or_ when buying takeaway food.5. _ in the bins and keep public places clean and beautiful.2. 小结。教学设计说明:在会听会写的基础上，进一步提升，把本堂课的知识落实到书面上。完成学习目标四。【家庭作业】必做：把课堂上练习的关于环境污染的对话写下来。选做：小组分工合作，用课前准备的照片，选取一种或几种污染做成海报， 教学设计说明:分层布置作业，促进不同层次学生的学习积极性。6EDBC3191F2351DD815FF33D4435F3756EDBC3191F2351DD815FF33D4435F3756EDBC3191F2351DD815FF33D4435F3756EDBC3191F2351DD815FF33D4435F3756EDBC3191F2351DD815FF33D4435F3756EDBC3191F2351DD815FF33D4435F375
