2019新人教选择性必修三Unit3UsingLanguage1公开课学案.docx

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1、2019新人教高中英语选择性必修三Unit3Using Language 1Talk about air pollution 学案学习目标1 .To obtain key information on different environmental issues such as climate change and air pollution from the listening material.2 .To identify expressions used to introduce environmental issues.3 .To express your ideas on the c

2、auses of environmental problems by using expressions of giving opinions and reasons.4 .To use the information in this unit to contribute to your awareness and understanding of important environmental issues that affect the world and your futures.Part I Lead-inLook at the pictures and discuss the que

3、stions in groups1 .What information can you get from these pictures?2 .How do these situations influence your life?Part II Pre-listeningActivity 1 Discuss in your groups and answer the questions1 .What did you know about smog?3 .1s smog a main source of pollution?Activity 2 Guess the content of the

4、listening material (interview)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?Part III While-listeningActivity 1 Listen to an interview with an ai

5、r pollution expert and decide whether the statements are True(T) or False(F)l.The expression “smog” originated in Britain and means a combination of “smoke and fog.1 .Smog became a severe problem in Britain because people at that time burnt lots of fossil fuels.3 .The worst smog in British history h

6、appened in London in 1942.4 .The Great Smog of London claimed 5,000 lives.5 .Later,the UK government ordered people not to bum wood in their homes.Activity 2 Listen again and take notes on what the expert said.Then summarize the information you got from the interviewBen Drake,an expert on air pollut

7、ion,is being interviewed on the radio.He said that smog was a severe problem century 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

8、 to .As smog is harmful to everyone,the expert advised us to ,use,and further develop .Activity 3 Work in groups and discuss the questions.The 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?

9、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?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.R

10、elated WordsPM2.5（particle matter 2.5） smog alert（雾霾警报） smoggy day anti-smog mask air-quality index（空气污染指数） heavy/thick/dense smog clean energy public transport restrict the consumption of fossil fuel enforce new emission standardsPart IV Post-listeningActivity 1 Read the listening material carefull

11、yH=Hostess BD=Ben DrakeH:Good morning,listeners.Air pollution is a serious problem,with urban populations particularly at risk from smog.Ben Drake is an expert on air pollution,and he is joining us today to talk about this issue.Ben,where does the word “smog come from?BD:“Smog comes from a combinati

12、on of the words “smoke and fog”.It originated in Britain in the early 20th century,when smog was a severe problem.H:Why was 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

13、lots of smog.In London,they also called the smog a “pea soup” because it was as thick as soup.H:That sounds terrible! What problems 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

14、 deaths were recorded.lt was necessary to take immediate action.The UK government ordered people not to burn coal in their homes 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,especial

15、ly to children,old people and those with heart or lung problems.We have to reduce smog and improve air quality for everyones 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 i

16、t.H:Yes.Let9s hope we can make some big changes.Thanks,Ben.BD:Thank you.Activity 2 Appreciate a song and answer the questionHow do you feel after listening to this song?Homework: Make up a dialogue about environment pollution with your partner,using the common knowledge expressions.参考答案Part I1 .Ther

17、es 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 bad influence on our living.For example,people have to take face masks when they go outdoors.Part IIActivity 1l.Smog is a kind of dirty air that looks

18、 like a mixture of smoke and fog,caused by smoke from cars and factories in cities.2.Yes,smog makes air dirty.Activity 2They will probably be talking about air pollution.For example,the definition of “smog”,the serious situation of smog”,and governments measures to deal with “smog”.Activity 31 .From

19、 this video,! know 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.2.Some air pollution comes from natural sources,like volcanic eruptions,but most air pollution results from human activities,such as energy use and agr

20、iculture.3.We can limit toxic substances,decrease the use of fossil fuels,use public transportation and so on.Part IIIActivity 1l.T 2.T 3.F(1952) 4.F(4,000) 5.F(coal)Activity 2in 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 technologyPart IVActivity 2We 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.