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

Unit 13 Were trying to save the earth!Section A (1a-1c)一、教学目标 1、 知识与技能（1）学习下列词汇、词组:litter ,bottom ,fisherman ,at the bottom of ,used to be ,play a part in（2）掌握现在进行时，现在完成时，被动语态，情态动词和used to 句型，正确运用。2、 过程与方法通过句子理解并掌握下列时态和used to 句型: Were trying to save the earth.The river used to be so clean.The air is badly polluted.No scientific studies have shown that shark fins are good for health.We should help save the sharks.3、 情感态度与价值观有环境危机意识，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型。三、教学过程Step 1 Warming upT: Do you know what the atmosphere haze is? Yes ,it is a kind of pollution .Why dont you like it ?What other kinds of pollution do you know?S: Noise pollution ,water pollution ,land pollution.Step 2 Presentation (1a)There are some words related to different kinds of pollution in 1a .Write them in the box in 1a individually and add more words .And then check their work with several students.Keys: noise pollution :loud music ,planes ,building houses ,mobile phones air pollution :cards ,factories ,smoking ,building houses water pollution :rubbish ,littering ,ships ,factoriesStep 3 Listening (1b)1.（1） What was the problem? The river was _. Even the bottom of the river was full of _. There were no more _ for fishermen to catch. （2）. What caused the problem?People are throwing _ into the river.Factories are putting _ into the river.（3）. How should the problem be solved?We should write to the _ and ask them to _ the factories. Everyone should help to _ the river.Keys :（1） really dirty rubbish fish（2） litter waste（3）government close down clean up2Listen 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 3Step 4 Pair work (1c)1 .Have the students role-play the conversation .Then make their own conversations about the kinds of pollution in 1a .e.g.Mark :The was dirty .Even was full of Tony :But it used to be so !Mark :Yes ,but are throwing litter into Tony :Everyone in this town should play a part in !2.Get some pa