【课件】Unit+3+Listening+and+Speaking+课件人教版（2019）选择性必修第三册.pptx

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1、人教版（2019）英语 选择性必修三Unit 3 ENVIRONMENTAL PROTECTIONListening and SpeakingLearning ObjectivesBy the end of the class,you will be able to:1.learn about the origin of“smog”in London,the solutions UK government made to deal with the smog.2.grasp the passage structure based on the mind map.3.learn to expre

2、ss ideas about air pollution:the causes and the solutions by referring to common knowledge.Lead-inLead-in1.“What have you learnt from the 1.“What have you learnt from the reading passage?”reading passage?”2.Where do greenhouse gases come 2.Where do greenhouse gases come from?from?1.“What have you le

3、arnt from the 1.“What have you learnt from the reading passage?”reading passage?”The main reasons of globlal warming is extra greenhouse gases.Many greenhouse gases occur naturally in the Many greenhouse gases occur naturally in the atmosphere,while others are man-made.The large amount atmosphere,wh

4、ile others are man-made.The large amount of extra man-made greenhouse gases is directly related of extra man-made greenhouse gases is directly related to the problem of global warming.Besides that,the to the problem of global warming.Besides that,the greenhouse gases have been influencing our daily

5、life.greenhouse gases have been influencing our daily life.2.Where do greenhouse gases come 2.Where do greenhouse gases come from?from?heat from the sun;burning fossil fuels;burning coalWhat information can you get form this picture?Air pollutionThe bridge in London is shrouded in smog.The chimneys

6、are in a power station.the burning coalLead-inLead-inWhat is it?And what do you think about it?New efficent-energy vehicles can be powered by electricity.They are the breakthrough point for China to develop new energy automobiles.NEVs(new efficent-energy vehicles)How do these situations influence yo

7、ur life?These situations influence my life not only by providing electricity for me,and transporting me,but also by polluting the air I breathe.They can cause global warming,greenhouse gases and acid rain,which damage my health.So we shoud lead a low-carbon life.Know about the air pollution.What wil

8、l they talk about?PredictionPredictionInterview energy and pollution How can we listen for a clearer goal?2.When there are numbers,please pay more attention and try to write them down.1.While listening,look at the questions first,and circle the important words.3.Listen to the radio for many times,wr

9、ite down the key words.What are the main topics?Smog Basic information about smog Smog in London:the causes,impacts and measuresListening 1Listening 1smog comes from a combination of the words“smoke”and“fog”originated in Britain Listening 2Listening 2Listen to section 1 of the interview and learn ab

10、out smog.When did it originate?It originated in the early 20th century.one of the first industrial countriescausesWhen the coal burned,what happend?factories and homes used lots of coal Listening Listening 3 3Listen to section 2 of the interview and figure out causes.Why the smog was called a“pea so

11、up”?When burned,the coal produced harmful emissions which created lots of smog.Because it was as thick as soup.caused many health issuesimpactsWhen and where did the worst case happen?killed many people Listening Listening 4 4Listen to section 3 of the interview and figure out impacts.How many peopl

12、e died when the smog was particularly bad?It happened in London in 1952.4000 deaths was recorded.the UK governmentmeasuresListening Listening 5 5Listen to section 4 of the interview and answer.Who can help to reduce air pollution?individualListening 5Listening 5measuresordered people not to burn coa

13、l in their homesgovernmentreduce smog and improve air qualityreplace coal with cleaner forms of energyindividualsuse new energy-efficient vehiclesuse new technology and develop itforced factories to move away from city centres What measures should be taken to reduce air pollution?major causemeasures

14、coal factory emissions vehicles emissionsrestrict burn coal force factories to move away from city centertravel by green vehiclesplant treesmake restriction policiesdevelop the technologysave electricity and energyWhat other causes and measures do you think of?restrict prive carstrave by public tran

15、sportationDiscussionDiscussionSmog in China:causes Vehicle emissions are the major causes!Learn about more measuresUseful expressions:Useful expressions:choose green travelling;buy electric vehicles;make factory restriction policy;plant trees;vehicle emissions;garbage sorting;wear anti-smog mask;thi

16、ck/dense smog Talking&speakingTalking&speakingAs goverment officials or ordinary people,what do you think of air pollution,what are the causes of air pollution and what can you doto help reduce air pollution?The following expressions might help you.Report about Smog:Possible AnswerAs is known to all

17、,we have been suffering air problems recently.Luckily,weve found the causes and the solutions.Now let me introduce it to you.Through our investigation,it is obvious that the vehicle emissions are the major causes,producing harmful gases which created“smog”,a combination of smoke and fog.But dont be

18、worry,there are lots of measures to deal with smog,such as wearing anti-smog masks,choosing green travelling or planting trees.Believe us,the smog will disappear and deep,blue sky will show up in the nearest future.Lucid waters and lush mountains are invaluable assets.Maybe we still have a long way

19、to go before we have a clean world.Luckiy,nearly all of countries are trying hard to prevent and control air pollution.Although actions may seem small and insignificant,they make differences.I believe our world will become more and more beautiful,the water will become greener and the sky will become bluer.SO now,lets move.