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1、2019新人教高中英语选择性必修三Unit 3 Environmental ProtectionUsing Language(P30P31)公开课教案Teaching aims:1 .Enable students to obtain key information on different environmental issues such as climate change and air pollution from the listening material.2 .Guide students to identify expressions used to introduce env
2、ironmental issues.3 .Help students to express your ideas on the causes of environmental problems by using expressions of giving opinions and reasons.4 .Use the information in this unit to contribute to your awareness and understanding of important environmental issues that affect the world and your
3、futures.Teaching key points:1. Help students to obtain key information on different environmental issues such as climate change and air pollution from the listening material.2. Help students to use the expressions in the listening text to express air pollution and solutions.Teaching difficult points
4、:1. Enable students to catch the key information of the listening material.2. Enable students to express their ideas on the causes and solutions of air pollution and learn from them with the help of the target vocabulary and expressions.Teaching procedures:Step 团 Lead-inLook at the pictures and disc
5、uss the questions in groups1 .What information can you get from these pictures?2 .How do these situations influence your life?Suggested answers:1 .Theres smog in the air.The coal is burning and the sky is not clean.The air is polluted.2 .They are harmful to our environment and health,and also have a
6、 bad influence on our living.For example,people have to take face masks when they go outdoors.Step 团 Pre-listeningActivity 1 Discuss in your groups and answer the questionsl.What did you know about smog?3 .1s “smog a main source of pollution?Suggested answers:4 .Smog is a kind of dirty air that look
7、s like a mixture of smoke and fog,caused by smoke from cars and factories in cities.2.Yes,smog makes air dirty.Activity 2 Guess the content of the listening material (interview)Suggested answers:They will probably be talking about air pollution.For example,the definition of “smog,the serious situati
8、on of ”smog,and governments measures to deal with smog .Activity 3 Watch a short video and answer the following questions1 .What can you learn from the video?2 .Work in a group,and discuss the causes of air pollution.3 .What can we do to solve air pollution?Suggested answers:l.From this video,! know
9、 what is air pollution,and the causes and damages of air pollution as well as what we should do to protect our air and environment.4 .Some air pollution comes from natural sources,like volcanic eruptions,but most air pollution results from human activities,such as energy use and agriculture.3.We can
10、 limit toxic substances,decrease the use of fossil fuels,use public transportation and so on.Step 团 While-listeningActivity 1 Listen to an interview with an air pollution expert and decide whether the statements are True(T) or False(F)1 .The expression smog originated in Britain and means a combinat
11、ion of “smoke and fog”.2 .Smog became a severe problem in Britain because people at that time burnt lots of fossil fuels.3 .The worst smog in British history happened in London in 1942.4 .The Great Smog of London claimed 5,000 lives.5 .Later,the UK government ordered people not to burn wood in their
12、 homes.Suggested answers:l.T 2.T 3.F(1952) 4.F(4,000) 5.F(coal)Activity 2 Listen again and take notes on what the expert said.Then summarise the information you got from the interviewBen Drake,an expert on air pollution,is being interviewed on the radio.He said that smog was a severe problem century
13、 in Britain.At that time,Britain was experiencing a boom in .Factories and homes /which created smog.He also mentioned the heavy smog in London in 1952.Later the UK government restricted in homes and forced factories to .As smog is harmful to everyone,the expert advised us to use/and further develop
14、 .Suggested answers:in the early 20th;industry;used lots of coal;was particularly bad and caused over 4,000 deaths;burning coal;move away from city centers;replace coal with cleaner forms of energy;new energy-efficient vehicles;green technologyActivity 3 Work in groups and discuss the questions.The
15、expressions in the box may help you1 .Have you experienced heavy smog where you live?Have you seen photos of big cities under clouds of smog?What is it like?2 .What do you think are the major causes of smog in China?3 .What measures have the government and citizens taken to help address the problem?
16、Referring to common knowledgeEveryone knows that. -There is no doubt that.Most people think that. -We all know that.As is known to all,. -It is obvious that.Related WordsPM2.5（particle matter 2.5） smog alert（雾霾警报）smoggy day anti-smog maskair-quality index（空气污染指数）heavy/thick/dense smogclean energy pu
17、blic transportrestrict the consumption of fossil fuelenforce new emission standardsSuggested answers:The answers vary.Stepm Post-listeningActivity 1 Read the listening material carefullyH=Hostess BD=Ben DrakeH:Good morning,listeners.Air pollution is a serious problem,with urban populations particula
18、rly at risk from smog.Ben Drake is an expert on air pollutionnd he is joining us today to talk about this issue.Ben,where does the word smog come from?BDJSmog comes from a combination of the words smoke and fog.ltoriginated in Britain in the early 20th century,when smog was a severe problem.H:Why wa
19、s it so bad then?BD:Well,Britain was one of the first industrial countries and factories and homes used lots of coal.When burnt,the coal produced harmful emissions which created lots of smog.ln London,they also called the smog a pea soup because it was as thick as soup.H:That sounds terrible! What p
20、roblems did it cause?BD:Smog caused many health issues and killed many people.The worst case happened in London in 1952.Over a few days when the smog was particularly bad,4,000 deaths were recorded.lt was necessary to take immediate action.The UK government ordered people not to burn coal in their h
21、omes and forced factories to move away from city centres.H:But smog is still an important issue in many places.What can be done about it?BD:Smog is harmful to everyone,especially to children,old people and those with heart or lung problems.We have to reduce smog and improve air quality for everyones
22、 health and well-being.We should replace coal with cleaner forms of energy,and we need to use new energy-efficient vehicles.We have the technology,but we must use and develop it.H:Yes.Let/s hope we can make some big changes.Thanks,Ben.BD:Thank you.Activity 2 Appreciate a song and answer the question
23、How do you feel after listening to this song?Suggested answers:We should try our best to reduce pollution and protect the environment.To protect the blue sky is to protect human beings.In this case,we ought to be in close contact with nature.Activity 3 Make up a dialogue about environment pollution with your partner,using the common knowledge expression.