Unit3 Period 4Talk about air pollution -ppt课件--(2022)高中英语新人教版选择性必修 第三册.pptx

1、 Period 4 Talk about air pollution选择性必修三 人教版（2019）Unit 3 Environmental protectionLead-inLook at the following picture and read the quote.Earth provides enough to satisfy every mans needs,but not every mans greed.Lead-inLook at the following pictures and discuss the questions.What can you get from th

2、e pictures presented about the Beijing Winter Olympics?Lead-inLook at the following pictures and discuss the questions.What is special about the cauldron(圣火台圣火台)of the Beijing Winter Olympics?The concept of low-carbon emissions and being environmentally friendly.Lead-inLook at the following pictures

3、 and name the vehicles.A hydrogen fuel cell bus氢燃料电池巴士hydrogen-powered vehiclesTask 1Look at the following pictures and find out what they are.chimneycoal=smogsmoke+fogNew energy-efficient vehiclesTask 1Discuss the questions in groups according to the pictures.1.What information can you get from the

4、se pictures?I can get information about where the pictures were taken,for example,the bridge is in London,and the chimneys are in a power station.Both places look very polluted.I can see that the car is powered by electricity as it is plugged in.I can see some coal being burned.These pictures tell m

5、e that the interview is probably about energy and pollution.Task 1Discuss the questions in groups according to the pictures.2.How do these situations influence your lfe?These situations influence my life not only by providing electricity for me,and transporting me,but also by polluting the air I bre

6、athe.Task 2Listen 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 combination of“smoke and“fog”.2.Smog became a severe problem in Britain because people at that time burnt lots of fossil fue

7、ls.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 homes.TTFFFLearningListen to the conversation and complete the chart below.summarize the informationhelp you review the

8、key points of a speakers messagefunctiontake notesbe conciseuse your own wordsListen for the“cue”Hostess: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 th

9、is issue.Ben,where does the word“smog come from?Ben Drake:“Smog”comes from a combination of the words“smoke”and “fog”.It originated in Britain ,when smog was a severe problem.Hostess:Why was it so bad then?Ben Drake:Well,Britain was one of and factories and homes used lots of coal.When burnt,the coa

10、l produced harmful emissions which created lots of smog.In London,they also called the smog a“pea soup”because it was as thick as soup.Listen again and fill in the blanks.Task 3in the early 20th century the first industrial countries Hostess:That sounds terrible!What problems did it cause?Ben Drake:

11、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 .Hostess:But smog is still an important issue in

12、 many places.What can be done about it?Listen again and answer these questions.Task 3 take immediate action not to burn coal in their homes move away from city centres Ben Drake:Smog is harmful to everyone,especially to children,old people,and those with heart or lung problems.We have to and for eve

13、ryones health and wellbeing.We should _ _ and we need to use _ _.We have the ,but we must use and develop it.Hostess:Yes.Lets hope we can make some big changes.Thanks,Ben.Ben Drake:Thank you.Listen again and answer these questions.Task 3 reduce smogimprove air quality replace coal with cleaner forms

14、 of energy new energy-efficient vehiclestechnologyListen again and take notes on what the expert said.Then summarize the information you got from the interview.Task 4Ben Drake,an export on air pollution,is being interviewed on the radio.He said that smog was a severe problem _century in Britain.At t

15、hat time,Britain was experiencing a boom in_.Factories and homes _,which created smog.in the early 20thused lots of coalindustry Listen again and take notes on what the expert said.Then summarize the information you got from the interview.Task 4He also mentioned the heavy smog in London _in 1952.Lat

16、er 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 _.was particularly bad and caused over 4000 deaths burning coalmove awayfrom city centersreplace coal with cleaner forms of energynew energy-efficien

17、t vehiclesgreen technologyWork in groups.Discuss the questions.The expressions in the box may help you.Task 51 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 maior causes of smog in China?3 What measu

18、res have the government and citizens taken to help address the problem?Referring to common knowledgeEveryone knows that.We all know that.As is known to all,.Most people think that.There is no doubt that.It is obvious that.vehicle restrictiontree planting Task 5Work in groups.Discuss the questions.Th

19、e expressions in the box may help you.1.Have you experienced heavy smog where you live?Have you seen photos of big cities under clouds of smog?What is it like?I have occasionally experienced heavy smog where I live.I have also seen pictures of heavy smog over cities.It is very thick and hard to see

20、through.There is no doubt that it is not a good thing.Task 5Work in groups.Discuss the questions.The expressions in the box may help you.2 What do you think are the maior causes of smog in China?3 What measures have the government and citizens taken to help address the problem?Industry and vehicles

21、are the major causes of smog in China.Most people think that pollution at a certain level is a necessary result of growth,but the government is taking measures to keep it in check by developing green energy solutions and controlling factory and vehicle emissions.Exercises重点单词和短语1_ n.烟雾(烟与雾混合的空气污染物)2_ vi.&vt.起源；发源；创立3_ n.结合，联合4_ adj.十分严重的5_ v.声称，断言 6._ n.繁荣；流行 7_ that time在那时8be harmful _ 对有害9contribute _ 有助于；促成smogoriginatecombinationsevereclaimboomattotoHomework Do Exercises on Page 77of the workbook.