人教版九年级Unit 13 We're trying to save the earth!-Section A 2a—2d-ppt课件-(含教案)-公开课-(编号：903eb).zip

Fan Bingbing visited BeiJing last week. She took some photos. water pollution noise pollution soil pollution air pollution Pollution Kinds of pollution What caused ? Factories put waste into the river. Learning Competition 1 : Guide1: Lets learn! How should it be solved? We should close down the small factories. What caused ? The plane made much noise. What caused ? The cars made much noise. take buses walk to school How should it be solved? Factories and people burn coal. What caused ? How should it be ? We should What pollution is it? It is What caused it? The How should it be ? We should Guide 2: Lets talk! 1a Write down the words that related to the pollution. Guide 3: Lets write! Discuss 1a in four and write. (四人小组讨论) noise pollution _ _ _ _ air pollution _ _ _ _ water pollution _ _ _ _ loud music planes ships mobile phones factories cars smoking ships factories littering rubbish building houses building houses loud music cars rubbish planes littering ships factories smoking building houses mobile phones 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 fishermen to catch. really dirty rubbish fish 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. litter waste government close down clean up Guide 4: Lets read and do! 1.Read P 97 1c and P146 1b in pairs. ( 2) 2.Do exercises. (导学案) 读书时间！ 根据短文内容及汉语提示或首字母完成 句子。 One day Mark and Tony wanted to go _ (游泳) in the river last weekend. But the river was really _. Even the _(底部) was full of _(垃圾), there were no more _ for fishermen to _. They think people are _(扔) swimming dirty bottom rubbish fish catch throwing litter into the river. Factories are also putting w_ into the river. Tony said he should w_ to the government. And the government should _ down the factories. Mark said everyone should help to save the river. Everyone should play a part in_(打扫) up the river. aste rite close cleaning 用动词的适当形式填空。 1. Were trying _ (save) the earth. 2. There used to _ (be) clean and beautiful. 3. There are too many _ for _ to catch (fish). 4. Everyone in this town should play a part in _ (clean) it up! to save be fishfishermen cleaning We only have one earth! Lets play a part in loving and saving it! 教学设计教学设计 UnitUnit 1313 WereWere tryingtrying toto savesave thethe earth!earth! 一、教学目标： 1. 语言知识目标 基本词汇：litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, 基本词组：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good use, pull down, bring back 基本句型：Were trying to save the earth! The river used to be so clean. The air is badly polluted. No scientific studies have showed that shark fins are good for health. We should help save the sharks. 2. 技能目标: 能正确运用现在进行时，现在完成时，被动语态，情态动词和 used to 句型。 3. 情感目标: 有环境危机意识，学会关注环境保护环境。 二、教学重难点： 1. 教学重点：（1）能正确运用现在进行时，现在完成时，被动语态，情态动 词和 used to 句型。 （2）保护环境的措施方法。 2. 教学难点：能正确运用现在进行时，现在完成时，被动语态，情态动词和 used to 句型。 三、教学步骤: Section A 1 (1a-2d) I. Presentation Show the picture of the earth and tell students the earth is polluted now. For example: (1) The factories that burn coal pollute the air with a lot of black smoke. (2) Factories put waste into the river. (3) People should throw away litter in the bin. (4)There are more cars on the road. II. Learning Here are some words related to different kinds of pollution. Write them in the box below. Then add more words. loud music cars rubbish planes littering ships factories smoking building houses mobile phones noise pollution air pollution water pollution _ _ _ _ _ _ _ _ _ _ _ _ Keys : noise pollution loud music planes mobile phones building houses air pollution factories smoking cars building houses water pollution ships rubbish littering factories III. Listening 1. 1b Listen and complete the sentences. What was the problem? The river was _. Even the bottom (底部) of the river was full of _. There were no more _ for fishermen (渔民) 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. Keys: really dirty rubbish fish litter waste government close down clean up 2. Listen 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. Keys: 2 3 V. Language points 1. Were trying to save the earth! 我们正在竭尽全力拯救地球! try to do =try ones 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。 2. 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. 房间里堆满了垃圾。 Pick up your litter after a picnic. 野餐后将废弃物收拾好。