英语人教版九年级全册Unit 13 Section A.doc

Unit 13 We are trying to save the earth. Section A(1a-1c)Step 1. Lets watch and think.1: Watch the video2: Think about the following questions:Question 1: What kind of pollution could you see?_Question 2: What causes(引起) this kind of pollution?_Question 3: How should we solve the problem?_3: Play a gameStep 2. Lets listen.1. Listen for the first time and answer the questions.1) Who are talking in the conversation? _2) What pollution are they talking about? _2. Listen for the second time 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 fishermen to catch.3.Listen again and complete the sentences.What caused the problem?* People are throwing _into the river. * Factories are putting _ into the river.How should we solve the problem?* We should write to the _ and ask them to _ the factories. * Everyone should help to _ the river.4. Retell.Step 3. Lets speak.1. Discuss what other pollution you know.2. Finish off the exercises in 1a, talk about the causes and ways to solve the problems. _ _ _ _ _ _ _ _ _3. Play the game.4. Pariwork: Describe the pollution in your cityMiluo.Example:A: What kind of pollution do you know around us in Miluo?B: There is too much _pollution around us. We can see_.A: What causes the pollution?B: _.A: How should we solve the pollution?B: I think we should_.Step 4. Lets chant(说唱)Too much_ pollution, What can we do?_Example:Too much water pollution, What can we do?Clean up the river, Dont throw away. Step 5 Homework: Choose one of them to do:1) Practice chanting. 2) Make up the dialogue about pollution.教材参考：Uni13听力材料参考：Section A, 1bTony: Hey, Mark, maybe we could go swimming in the river later this afternoon.Mark: I dont think I want to go, Tony.Tony: Why not?Mark: I was there last weekend and the river was really dirty. Even the bottom of the river was full of rubbish, and there were no more fish for fishermen to catch.Tony: No way! It used to be so clean. In fact, it has always been the nicest river in this town.Mark: Not anymore. I think people are throwing litter into the river. Factories are also putting waste into the river.Tony: Thats terrible! We should write to the government.They should help to close down the factories.Mark: Good idea! But I t