北师大版高二选修8教案： Unit 22 Period 8.doc

the eighth period communication workshop (i)teaching goals 教学目标1. target language目标语言 重点词汇和短语 plug, quilt, cushion, skyscraper, adopt, rail, warehouse, considerate, plug ones ears, all the best2. ability goals能力目标 help students learn more about noise pollution by doing listening exercises.3. learning ability goals 学能目标help students to predict missing information and take notes using listening strategies. giving opinions.teaching important points教学重点listening strategies.noise pollution and noise control measures in china.teaching difficult points教学难点noise control measures and individual noise control efforts.teaching methods教学方法 speaking, discussing and listening.teaching aids 教具准备multi-computer.teaching procedures & ways 过程与方式step i leading inteacher plays some music for students to enjoy. suddenly turn it up. too loud noise is pollution.t: good morning /afternoon, class!ss: good morning/ afternoon, mr. /mst: do you like music? now lets listen to some music to relax. is the music soft and beautiful?ss: yes. it is enjoyable.suddenly teacher turns up to its full volume.ss: terrible noise!t: yes, we call this much too loud music noise pollution. in this class we are going to listen to a radio programme about noise pollution. step ii listening: a radio interviewbefore you startdeal with ex1-2 on page 12.ask students to work in pairs and discuss the pictures on page 12. then try to give the definition of noise pollution. some students will be asked to share their bad experiences with poise pollution.t: noise is among the most pervasive pollutants today. what will cause noise pollution?ss: noise from road traffic, jet planes, jet skis, garbage trucks, construction equipment, manufacturing processes, lawn mowers, leaf blowers, and boom boxes, to name a few, are among the audible litter that are routinely broadcast into the air.t: noise negatively affects human health and well-being. can you name some problems cause by noise? ss: problems related to noise include hearing loss, stress, high blood pressure, sleep loss, distraction and lost productivity, and a general reduction in the quality of life and opportunities for tranquility. t: quite right! now that you know a lot about noise, please work in groups and do ex1&2 on page 12. several minutes later ask some students to present their answers to the class.（after students presented their answers）t: noise pollution is not easily defined. part of the difficulty lies in the fact that in some ways it is different from other forms of pollution. noise is transient; once the pollution stops, the environment is free of it. this is not the case for chemicals, sewage, and other pollutants introduced into the air, soil, or water. the definition of noise itself is highly subjective. to some people the roar of an engine is satisfying or thrilling; to others it is an annoyance. loud music may be enjoyable or a torment, depending on the listener and the circumstances. broadly speaking, any form of unwelcome sound is noise pollution, whether it is the roar of a jet plane overhead or the sound of a barking dog a block away.deal with ex 3.ask students to read the 10 statements. try to predict the information that is missing. then listen to the radio programme and complete the notes with one or two words. students are asked to do the exercises individually. play the recording again if necessary. then check the answers with the whole class.t: using the listening strategies try to predict the missing information in the statements in ex 3. then we will listen to the radio programme and complete the notes with one or two words. i will play the recording again if necessary. .t: which statement is the definition of noise pollution?s1: the second. noise pollution can be defined as any sound that interrupts our daily lives or makes us feel uncomfortable.t: what are the sources of noise pollution?s2: television sets, stereo system, air-conditioners and pets can all be sources of noise pollution.t: what statements tell noise negatively affects human health and well-being? s3: the last five statements.t: right! now lets read the bad effects caused by noise.deal with ex4.t: now that noise has so many negative effects on us, it is necessary to control noise. now lets listen to the second part of the radio programme. while listening, please focus on the three topics: necessity for noise control noise control measures individual noise control effortsi will play the recording twice for you. then you may work in pairs and compare your notes with your partner to check if you miss any important information. after you compare your notes with each others, i will play the recording again and draw your attention to the important information. at last you will be asked to present your notes on the three topics to the class.step iii speakingbefore you startdeal with ex1 on page 14.t: after we talk about noise pollution, lets listen to two people discussing an article from a newspaper. first read through the opinions. then i will play the recording for you.if necessary, play the recording again for students to check the answers.chatroom: giving opinionsdeal with ex2 on page 14.ask students to read the expressions in ex2 and decide which are used to give you time to think, which are used to express an opinion.impersonal “you”deal with ex3 on page 14.ask students to read the five sentences in ex3 and decide which of the examples refer to a particular person, which refer to people in general.discuss the photosask students to discuss the photos and think about the global issue each photo represents the causes of the problem your opinions and possible solutionswhile giving their opinions, remind students that they should use the expressions to justify their arguments and the expressions to give their opinions.step iv listening: situational dialoguesdeal with ex1o