Unit 13 We’re trying to save the earth! 单元课件（5课时 53+33+30+57+24张）+音频

课件53张PPT。Unit 13 We're trying to save the earth!Section A 1 1a-2d课堂导入The earth is polluted.Lead-inair pollutionThe factories that burn coal pollute the air with a lot of black smoke. n. 煤炭Factories put waste into the river.water pollutionmobile phone pollutionlitter v. 乱扔 n. 垃圾 rubbish waste 垃圾，废弃物People should throw away litter in the bin.n. 垃圾箱noise pollutionThere are more cars on the road.1aHere are some words related to different kinds of pollution. Write them in the box below. Then add more words.noise pollution _____ _____ _____ _____air pollution _____ _____ _____ _____water pollution _____ _____ _____ _____loud musicplanesmobile phonesfactoriescarssmokingshipsfactorieslitteringrubbishbuilding housesbuilding housesloud music cars rubbish planes littering ships factories smoking building houses mobile phones1bListen and complete the sentences.really dirtyrubbishfishlitterwastegovernmentclose downclean upListen again and check (√) 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.√√1cRole-play the conversationThe river was dirty. Even the bottom of the river was full of rubbish.But it used to be so clean!Yes, but people are throwing litter into the river.Everyone in this town should play a part in cleaning it up!PracticeMake conversations using the pollution in 1a.The river has always been the nicest river in this town.Yes, it used to be so clean.What caused the problem?But I was there last weekend and the river was really dirty.Factories are also putting waste into the river.People are throwing litter into the river.What should we do?Yes, everyone in this town should play a part.We should write to the government and ask them to close down the factories.What else can we do?Everyone should help to clean up the river.1. We’re trying to save the earth! 我们正在竭尽全力拯救地球! try to do =try one’s best to do 努力去做某事。 e.g. Every student should try to study hard in order to study in a university. 为了进入大学学习，每个学生都应该 努力学习。Language points2. Here are some words related to different kinds of pollution. be related to 与…有关 e.g.?I am not?related?to?him 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 live 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“(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 ... ...