北师大版高中英语选修八Unit 22《Environmental Protection》(The Eighth Period)教案

安徽省滁州市第二中学高中英语 Unit22 Environmental Protection The Eighth Period Communication Workshop (I)教案
北师大版选修8
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 one’s ears, all the best
2. Ability goals能力目标
Help students learn more about noise pollution b y 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 st rategies.
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 in
Teacher 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. /Ms…
T: Do you like mus ic? Now let’s 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 Interview
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 oppo rtunities 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 answer s 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 on e 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 h uman health and well-being? S3: The last five statements.
T: Right! Now let’s read the bad e ffects caused by noise.
...
Deal with Ex4.
T: Now that noise has so many negative effects on us, it is necessary to control noise. Now let’s listen to the second part of the ra dio prog ramme. While listening, please focus on the three topics:
Necessity for noise control
Noise control measures
Individual noise control efforts
I will play the recording twice for you. Then you may work in pairs and compare your no tes with your partner to check if you miss any important information. After you compare your notes with each other’s, 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 Speaking
Before you start
Deal with Ex1 on Page 14.
T: After we talk about noise pollution, let’s 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 opinions
Deal 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.
Di scuss the photos
Ask students to discuss the photos and think about
The global issue each photo represents
The causes of the problem
Your opinions and possible solutions
While giving their opinions, remind students that they should use the expressions to justify their arguments and the expressions to give their opinions.
Step V Guided writing: Ａreport
Deal with Ex4 in Language Power on Page 61.
Ask students to put the given nine sentences in the correct order in the report plan. Students may refer to Reading strategies in Lesson 3 on Page 10.
Step VI Homework
Learn more a bout noise pollution and noise control measures in China.。