英语人教版九年级全册Unit 13（Section A 1a-1c）.doc

Unit 13 Were trying to save the earth!The First Period Section A 1a1c【Teaching aims】 一、听、说、读、写以下词汇及词组：litter, bottom, fisherman（pl. fishermen）, building houses，noise pollution，air pollution，water pollution，the bottom of, be full of, throw litter into, put waste into, close down, clean up, used to do, play a part in doing sth.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 the river.3) It has always been the nicest river in this town.4) We should write to the government to ask them to close down the factories.5) Everyone in this town should play a part in cleaning it up. 6) How should the problem be solved?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 picture on the screen and discuss:What is mother earth doing? Why?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：创设情景，导入新课。While listeningPresentation（呈现新知识）1. Group work: talk about each picture.e. g . A: The air isnt clear B: There are more and more cars and factories A:What should we do? B: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 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 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.4. Listen again and answer the questions.1) What does Tony want to do with Mark this afternoon? 2) What did Mark find about the river?3) What has caused the pollution? 4) Who should play a part in cleaning it up? 5. 模仿秀:跟读模仿，注意语音语调。After listening1. 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 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，巩固当堂所学。2. Exercises.Translate the sentences.1） She used to love cats but was once attacked by one, she doesnt like them anymore.2）她过去在伦敦住过。3）我以前喜欢在河边跑步，但现在不了，河边太脏。4）我尽量今天晚上完成工作。5）他在这项工作中起重要作用。6）这些问题都是密切相关的。7)我们正在努力拯救地球。8）我们应当写信给政府要求他们关闭这些工厂。9）它一直是镇上最美的河。10）这个问题该如何解决？Translate the phrases.building houses 噪音/空气/水污染 the bottom of 充满，装满 将垃圾扔进 将废弃物排进 close down clean up 过去常做 在起重要作用 与有关联努力做/试图做Complete the sentences according to the first letter given.1.Dont l the used paper here and there.2.The earth is in danger because of different kinds of p.3.The water is very clean. We can even see the b of the river.4.The fact