英语人教版九年级全册Unit13 Section A 1.doc

Unit 13 Were trying to save the 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, takeaway, bin. 基本词组：take part in, turn off, take action, throw away基本句型：Were trying to save the earth! The river used to be so clean. The air is badly polluted.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-1c)I. PresentationShow the picture of the earth and tell students the earth is polluted now.Show the pictures of the Nanliu River which is near us and the river is badly polluted now. Then ask students to discuss how to protect it.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.Learn some new words.II. Work on 1aHere 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 phonesnoise pollution air pollution water pollution _ _ _ _ _ _ _ _ _III. Practice1. Role-play the conversation in 1c.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!2. Make conversations using the pollution in 1a.A: The river has always been the nicest river in this town.B: Yes, it used to be so clean.A: But I was there last weekend and the river was really dirty.B: What caused the problem?A: People are throwing litter into the river.B: What should we do? A: Factories are also putting waste into the river.B: Yes, everyone in this town should play a part.A: We should write to the government and ask them to close down the factories.B: What else can we do?A: Everyone should help to clean up the river. IV. Listening1. Work on1b. 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.2. Listen again and answer the following questions.1) What does Tony want to do later this afternoon?He wants to go swimming with Mark in the river later this afternoon.2) Why doesnt Mark want to go with Tony? Because 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. 3) How was the river in the past? It used to be so clean. It has been the nicest river in this town.V. Language points1. 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。 【运用】 我会尽力做好这项工作。_Welltryto finish the work in a week. 2. Here are some words related to different kinds of pollution. be related to 与有关 e.g. Is the driver relate to the accident? 司机和这起事故有关吗？3. .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【运用】根据句意用rubbish或litter完成句子。1. Throw the _ out. 把垃圾扔出去。2. The room is full of _. 房间里堆满了垃圾。3. Pick up your _ after a picnic. 野餐后将废弃物收拾好。 rubbish, rubbis