英语人教版九年级全册Unit13 SectionA1a-1c.docx

Unit 13 Were trying to save the earth! Section A 1 (1a-1c)一、Teaching objectives：1. Language knowledge:Basic vocabulary：litter, advantage, bottom, fisherman, Basic phrases：noise pollution,air pollution,water pollution,be harmful to, be good for,be bad for,throw into,close down,turn off, the bottom of,clean up,play a part inSentence Patterns：Were trying to save the earth! The river used to be so clean. How should the problem be solved?2.Ability Objectives: To correctly use the present tense, passive voice, modal verbs should and used to Pattern3. Emotion aims: Have the awareness of environmental crisis, learn to pay attention to the environment and protect the environment二、Teaching important and difficult points： 1. key teaching points：（1）To correctly use the present tense, passive voice, modal verbs should and used to Pattern 2. Teaching difficult points：（1）Measures to protect the environment.三、Teaching aid: tape recorder,multi-media四、Teaching process ：Step 1 PresentationShow the picture of the earth and tell students the earth is polluted now. Factories pour dangerous gases into the air.Cars also pour dangerous gases into the air.Some people smoke in public places. Step 2 Learning 1a1.Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.loud musiccarsrubbishplanes burninglitteringshipsfactoriessmoking automobile exhaustbuilding housesmobile phones 2.Ask students to divide the words above into three groups:Air PollutionNoise PollutionWater Pollutionsmoke,factory,automobile exhaustburning,cars, building houses,loud music,planes,ships,factory sewage,litteringindustrial wasteStep 3. Listening and talking1. 1b Listen and complete the sentences.2. Think of solutions to solve the pollution:1 close down the factories;2 help to clean up the river;3 take the bus or subway;4 ride a bike;5 bring a bag to go shopping, throw rubbish in the cans;6 turn off the lights when you leave a room;7 use paper or reusable bags;8 recycle books and paper;9 turn off the shower when you wash your hair;10 dont use napkins; Step 4 Practice1. Role-play the conversation in 1c.A：The river was dirty. Even the bottom of the river was full of rubbish.B: But it used to be so clean!A: Yes, but people are throwing litter into the river.B: Everyone in this town should play a part in cleaning it up!2. Ask students to make new conversations about pollutionStep 5 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。 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. The river used to be so clean. Used to 表示过去常常，用来描述过去的状况但现在不一样了，后面接动词原形 e.g.She used to drive her car to work,but now she takes the bus.3.Here are some words related to different kinds of pollution. be related to 与有关 e.g.I am notrelatedtohim in any way. 我和他无任何关系。 4. How should the problem be solved? Should be solved 这是带有情态动词的被动语态，由情态动词+be +过去分词构成， e.g.The water in the river should not be polluted.5.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。6. Even the bottom of the river was full of rubbish. Yes, but people are throwing litter into the river. The bottom of .意思是。的底部 e.g The bottom of the glass is nothing.Step 6 Summary 1. To know What air pollution,noise pollution and water pollution are? 2. Think of ways to solve the pollution in our daily life. 3.Master the modal verbs should and used to sentence pattern.Step 7 Exercises 1. He _ go out with his parents, but now he _ stay at home alone. A. use to; is used to B. is used to; used toC. use to; used to D. is used to; is used to2. Everyone _try his best to protect the environment. A. must B.need C.should D.can 3. The government _the factories which are putting waste water into the river. A.is throwing B.closing down C.c