Unit 3 Using Language （ppt课件）-2023新人教版（2019）《高中英语》选择性必修第三册.pptx

1、Unit 3 Environmental ProtectionPeriod 4:Listening and SpeakingTalk about air pollutionLearn to use summarizing strategy in the listening process and relay the listening content.Learn to express ideas about air pollution:the causes and the solutions by referring to common knowledge through discussion

2、.Look at the following pictures and find out what they are.Before-listeningWhere:What:Why:Before-listeningchimneys emitting gasesa power stationburning fossil fuelsWhere:What:Why:burning coalsfamily/factoryheat/energyBefore-listeningWhere:What:Why:smoky/foggy/smoggy dayRiver Thamespolluted airBefore

3、-listeningWhere:What:Why:New energy vehicleenvironmental-friendly,green energy-savingBefore-listeningCharging stationNew energy-efficient vehicleschimneycoalsmogHow do these situations influence your life?greenhouse gasacid rainair pollutionlead a low-carbon lifeBefore-listeningInterview energy and

4、pollutionListen to an interview with an air pollution expert and decide whether the statements are true(T)or false(F).The expression“smog”originated in Britain and means a combination of“smoke”and“fog”.Smog became a severe problem in Britain because people at that time burnt lots of fossil fuels.The

5、 worst smog in British history happened in London in 1942.The Great Smog of London claimed 5,000 lives.Later,the UK government ordered people not to burn wood in their homes.19524000coalTTFFFListening for True or FalseListening for the details Ben Drake,an export on air pollution,is being interviewe

6、d 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 to_.As smog is

7、 harmful to everyone,the expert advised us to _,use _,and further develop _.Summarise the information you got How can we listen for a clearer goal?When there were numbers,we underlined the different numbers and pronounced in advance.While listening,we look at the questions first,and circle the impor

8、tant words.I prefer to listen to the radio for many times,then I will turn to the script to understand it better.Well,Britain was one of and factories and homes used lots of coal.When burnt,the coal produced harmful emissions which created lots of smog.In London,they also called the smog a“pea soup”

9、because it was as thick as soup.“Smog”comes from a combination of the words“smoke”and“fog”.It originated in Britain ,when smog was a severe problem.That sounds terrible!What problems did it cause?HostessBen Drake HostessHostessBen Drake in the early 20th centurythe first industrial countries Good mo

10、rning,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?Why was it so bad then?Ben Drake HostessBen Drake HostessBen Dra

11、ke Thank you.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.It was necessary to .The UK government ordered people and forced factories to .take immediate actionnot to burn c

12、oal in their homes move away from city centresBut smog is still an important issue in many places.What can be done about it?Smog is harmful to everyone,especially to children,old people,and those with heart or lung problems.We have to and for everyones health and wellbeing.We should ,_and we need to

13、 use .We have the ,but we must use and develop it.reduce smog improve air quality replace coal with cleaner formsnew energy-efficient vehiclestechnologyof energyYes.Lets hope we can make some big changes.Thanks,Ben.TIPS:Summarize informationListening for the details Ben Drake,an export on air pollut

14、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 f

15、actories to_.As smog is harmful to everyone,the expert advised us to _,use _,and further develop _.industry used lots of coalwas particularly bad and causedin the early 20th burningmove away from city centersreplace coalnew energy-efficient vehiclesgreen technologyover 4000 deaths coalwith cleaner f

16、orms of energyPost-listening Have you experienced heavy smog where you live?What do you think are the major causes of smog in China?What measures have the government and citizens taken to help address the problem?Work in groups.Discuss the questions.major causemeasurescoal factory emissions vehicles

17、 emissionsrestricted burn coal forced factories to move away from city centertravel by green vehiclesplant treesboost industrial upgradingadvance the technologysave electricity and energyPost-listeningSummary To deal with the problem the government took some effective measures.Firstly,they carried o

18、ut strict regulations,making some factories closed down or moved out of the city center.Secondly,cars and buses using new clean energy were produced,which reduced the carbon dioxide emission.Also,a lot of trees were planted on hills,fields and so on.Most importantly,it is the governments measures that called on people to be involved in reducing the source of air pollution.Thank you!