Unit6EarthfirstUsingLanguageⅡP6667课件高一英语

Unit6EarthFirst新外研必修Book2UsingLanguageⅡP66-67

LearningobjectivesInthisclass,youwillgraspsomeexpressionsrelatedtoglobalwarming;discusswhatyoucandotohelpdealwithglobalwarming;listenforthetopicsthatarecoveredinthelecture;listenforthedetailedinformationinthelecture;talkaboutrecycling;makeaconversationaboutanenvironmentalproblem.PartoneDealingwithglobalwarmingSharewhatyouknowabouttheseexpressions.

Waterconservationisthepracticeofusingwaterefficientlytoreduceunnecessarywaterusage.Waterconservationisimportantbecausefreshcleanwaterisalimitedresource,aswellasacostlyone.Conservationofthisnaturalresourceiscriticalfortheenvironment.

AnLEDlightbulbisasolid-statelighting(SSL固态照明)devicethatfitsinstandardscrew-in(螺纹式的)connectionsbutusesLEDstoproducelight.LEDlightbulbsareamoreenvironmentally-friendlyalternativetoincandescentbulbs(白炽灯).LEDbulbsuseasemiconductor(半导体)devicethatemitsvisiblelightwhenanelectriccurrentpassesthroughit.

Renewableenergyisenergyderivedfromnaturalsourcesthatarereplenished(补充)atahigherratethantheyareconsumed.Sunlightandwind,forexample,aresuchsourcesthatareconstantlybeingreplenished.Renewableenergysourcesareplentifulandallaroundus.Hereareafewcommonsourcesofrenewableenergy:solarenergy,windenergy,geothermal(地热)energy,hydropower(水力发电),oceanenergy,bioenergy(生物能).

Acarbonfootprintistheamountofgreenhousegases—primarilycarbondioxide—releasedintotheairbyaparticularhumanactivity.Forexample,whenyoudriveacar,theengineburnsfuelwhichcreatesacertainamountofgreenhousegases.Whenyouheatyourhousewithcoalorelectricity,youalsogenerategreenhousegases.Eventheproductionoffoodandgoodsemitssomequantitiesofgreenhousegases.Togethertheseemissionsmakeupacarbonfootprint.

GreenhouseeffectisthewayinwhichheatistrappedclosetoEarth’ssurfaceby“greenhousegases.”Theseheat-trapping(吸热的)gasescanbethoughtofasablanketwrappedaroundEarth,keepingtheplanettoastier(更温暖的)thanitwouldbewithoutthem.Greenhousegasesincludecarbondioxide,methane(甲烷),nitrousoxides(氮氧化物),andwatervapor(蒸汽).

Areusablewaterbottleisonemadefromasturdier(更坚固的)andsafermaterial.Reusablewaterbottlesarebothaconvenientwaytostayhydrated(补水)andaneasywaytoreduceyourenvironmentalfootprint.It’sestimatedthatpurchasingbottledwatercostsupto1,000timesmorethantapwater,sothesavingscanbephenomenal(惊人的).Completethebrochurewiththeexpressionsrelatedtoglobalwarming.SixthingsyoucandoNOWtohelpstopglobalwarmingReducewastebychoosingreusableproducts-geta(n)1_____________________,forexample.reusablewaterbottleTrytoreduceyour2___________________.Walkorrideabikeinsteadoftakingacar.carbon

footprintSixthingsyoucandoNOWtohelpstopglobalwarmingUse3

_______________suchassolarenergyandwindpower.renewableenergyThelessenergyyouuse,thelesscarbondioxideisreleased.Replacingaregularlightbulbwitha(n)4_______________isagreatstart.LEDbulbSixthingsyoucandoNOWtohelpstopglobalwarming5__________________isimportantbecausecleanwaterisalimitedresource.Also,weusealotofenergytoprocesscleanwater.WaterconservationPlantingtreescanhelpalotinreducingthe6_________________________becausetreesabsorbthecarbondioxideintheair.greenhouseeffectWorkinpairs.Discusswhatyoucandotohelpdealwithglobalwarming,usingthewordsandexpressionsyouhavelearnt.A:Iwillgotoschoolbybiketoreducemycarbonfootprint.B:

IwillbringareusablebagwhenIgoshopping.C:

I

willturnoffthelightswhenIleavetheclassroom.D:IwillturnoffthetapwhenIfoundthewaterrunning....EnvironmentalproblemstobesolvedParttwoListsomeenvironmentalproblemstobesolved.waterpollutiondeforestationairpollutionglobalwarmingSmogcomesfromthewords“smoke”and“fog”,anditisusedtodescribetheairpollutionincitiescausedmainlybytrafficandfactories.Smogcanbedangerousbecauseitcausesseverebreathingproblemsandinfections.Didyouknow?1.Wheredoestheword“smog”comefrom?Smogcomesfromthewordssmokeandfog.2.Whatisitusedtodescribe?Itisusedtodescribetheairpollutionincitiescausedmainlybytrafficandfactories.3.Whyisitdangerous?Smogcanbedangerousbecauseitcausesseverebreathingproblemsandinfections.Answerthequestionsaboutsmog.Pre-listeningMakingapredictionWhattopicswillprobablybecoveredinthelecture?Whattheword“smog”means.Whentheword“smog”appeared.Whatcausedsmoginthepast.Whatcausessmognow.Theeffectsofsmogontheenvironment.Howgovernmentstrytoreducesmog.Whatwillhappenifwedon’treducesmog.Lecturer:Goodevening,everyone,andthankyouforcomingtotoday’stalk.I’mDrBrownandI’mgoingtotalkaboutairpolutionincities—whatweallknowas“smog”.Pleasefeelfreetostopmeifyouhaveanyquestions.So,firstofall,abitofhistory.Theterm“smog”wasfirstusedinthe1800sincitiesthathadproblemswithsmokeandfog.StudentA:Sorryforinterrupting,butIbelieveitwasinthe1900s.Lecturer:Sorry,Imadeamistake.Youareright.Itwasinthe1900s.Thankyou.Londonwasoneofthecitieswheresmogcausedbigproblems.InDecember1952,itsufferedfrom“TheGreatSmog”.Itwasaverycoldwinter,soalotofcoalwasburnedathomeandinthefactories.Theproblemwasthattherewasnowind,sothicksmogcoveredthecity.Nowadays...StudentB:Excuseme,butcanIjustask—didthesmogcauseanydeaths?Lecturer:I’mafraidso.Accordingtoresearch,about4,000

peopleareknowntohavediedasaresultofthesmog,butthatnumbercouldbemuchhigher.Itwasterrible!Nowadays,smogstillexists,butisproducedbychemicalscomingfromtraffic

andfactories.However,governmentsaretakingmeasures

toreducesmogasmuchaspossible.Now,let’slookatwhatsmogdoestoourhealth...StudentA:IfIcouldjuststopyouagain...Canyougiveusexamplesofthesemeasures?Lecturer:

Well,forexample,factoriesmustfollowrulesaboutwhatchemicalstheyuse.Insomecities,whenthere’ssmog,peoplehavetopaytodrivein

thecentre.Now,let’smoveontotheimpact

ofsmogonourhealth...While-listeningListentothelectureandchoosethetopicsthatarecovered.ListeningforspecificinformationWhatcausessmognow.Whentheword“smog”appeared.Whattheword“smog”means.Howgovernmentstrytoreducesmog.Whatcausedsmoginthepast.While-listeningListentothelectureandchoosethetopicsthatarecovered.Listeningforspecificinformation1.Whattheword“smog”means.2.Whentheword“smog”appeared.3.Whatcausedsmoginthepast.4.Whatcausessmognow.5.Theeffectsofsmogontheenvironment.6.Howgovernmentstrytoreducesmog.7.Whatwillhappenifwedon’treducesmog.While-listeningListenagainandcompletetheslides.ListeningfordetailedinformationSmoginthepast•Termcreatedin:1_______•BigprobleminLondon:2_______________inDecember1952•Causesoftheproblem:burningtoomuchcoaland3_________Lecturer:Goodevening,everyone,andthankyouforcomingtotoday’stalk.I’mDrBrownandI’mgoingtotalkaboutairpolutionincities—whatweallknowas“smog”.Pleasefeelfreetostopmeifyouhaveanyquestions.So,firstofall,abitofhistory.Theterm“smog”wasfirstusedinthe1800sincitiesthathadproblemswithsmokeandfog.StudentA:Sorryforinterrupting,butIbelieveitwasinthe1900s.Lecturer:Sorry,Imadeamistake.Youareright.Itwasinthe1900s.Thankyou.Londonwasoneofthecitieswheresmogcausedbigproblems.InDecember1952,itsufferedfrom“TheGreatSmog”.Itwasaverycoldwinter,soalotofcoalwasburnedathomeandinthefactories.Theproblemwasthattherewasnowind,sothicksmogcoveredthecity.Nowadays...1900sTheGreatSmognowindWhile-listeningListenagainandcompletetheslides.ListeningfordetailedinformationSmoginthepresent•Causesoftheproblem:4____________________________andfactories•Measures:rulesaboutusing5________infactoriesand6____________________________inthecitycentreStudentB:Excuseme,butcanIjustask—didthesmogcauseanydeaths?Lecturer:I’mafraidso.Accordingtoresearch,about4,000

peopleareknowntohavediedasaresultofthesmog,butthatnumbercouldbemuchhigher.Itwasterrible!Nowadays,smogstillexists,butisproducedbychemicalscomingfromtraffic

andfactories.However,governmentsaretakingmeasures

toreducesmogasmuchaspossible.Now,let’slookatwhatsmogdoestoourhealth...StudentA:IfIcouldjuststopyouagain...Canyougiveusexamplesofthesemeasures?Lecturer:Well,forexample,factoriesmustfollowrulesaboutwhatchemicalstheyuse.Insomecities,whenthere’ssmog,peoplehavetopaytodrivein

thecentre.Now,let’smoveontotheimpact

ofsmogonourhealth...chemicalscomingfromtrafficchemicalsrequirementsofpayingtodriveLecturer:Goodevening,everyone,andthankyouforcomingtotoday’stalk.I’mDrBrownandI’mgoingtotalkaboutairpolutionincities—whatweallknowas“smog”.Pleasefeelfreetostopmeifyouhaveanyquestions.So,firstofall,abitofhistory.Theterm“smog”wasfirstusedinthe1800sincitiesthathadproblemswithsmokeandfog.StudentA:

Sorryforinterrupting,butIbelieveitwasinthe1900s.Lecturer:Sorry,Imadeamistake.Youareright.Itwasinthe1900s.Thankyou.Londonwasoneofthecitieswheresmogcausedbigproblems.InDecember1952,itsufferedfrom“TheGreatSmog”.Itwasaverycoldwinter,soalotofcoalwasburnedathomeandinthefactories.Theproblemwasthattherewasnowind,sothicksmogcoveredthecity.Nowadays...StudentB:

Excuseme,butcanIjustask—didthesmogcauseanydeaths?Lecturer:I’mafraidso.Accordingtoresearch,about4,000

peopleareknowntohavediedasaresultofthesmog,butthatnumbercouldbemuchhigher.Itwasterrible!Nowadays,smogstillexists,butisproducedbychemicalscomingfromtraffic

andfactories.However,governmentsaretakingmeasures

toreducesmogasmuchaspossible.Now,let’slookatwhatsmogdoestoourhealth...StudentA:

IfIcouldjuststopyouagain...Canyougiveusexamplesofthesemeasures?Lecturer:Well,forexample,factoriesmustfollowrulesaboutwhatchemicalstheyuse.Insomecities,whenthere’ssmog,peoplehavetopaytodrivein

thecentre.Now,let’smoveontotheimpact

ofsmogonourhealth...Listenagainandtalkaboutwhatthestudentssaytointerruptthelecturerpolitely.Apoliteinterruptionisusuallyframedasarequestforpermissiontointerruptsomeone,oftenstartingwithIf...,MayI...?orCanI...?ThismaybeprecededwithanapologysuchasSorry,...orExcuseme,...Usuallyweinterruptsomeonewhentheypauseforbreath,orduringtheslightpausebetweenspokenclauses.While-listeningListenagainandfillintheblanks.Lecturer:Goodevening,everyone,andthankyouforcomingtotoday’stalk.I’mDrBrownandI’mgoingtotalkabout___________incities—whatweallknowas“smog”.Pleasefeelfreeto_____meifyouhaveanyquestions.So,firstofall,abitofhistory.Theterm“smog”wasfirstusedinthe1800sincitiesthathadproblemswithsmokeandfog.StudentA:Sorryforinterrupting,butIbelieveitwasinthe_______.Lecturer:Sorry,Imadeamistake.Youareright.Itwasinthe1900s.Thankyou.Londonwasoneofthecitieswheresmogcausedbigproblems.InDecember_______,itsufferedfrom“TheGreatSmog”.Itwasaverycoldwinter,soalotof_______wasburnedathomeandinthefactories.Theproblemwasthattherewasno_______,sothicksmogcoveredthecity.Nowadays...StudentB:Excuseme,butcanIjustask—didthesmogcauseanydeaths?Lecturer:I’mafraidso.Accordingtoresearch,about________

peopleareknowntohavediedasaresultofthesmog,butthatnumbercouldbemuchhigher.Itwasterrible!Nowadays,smogstillexists,butisproducedby__________comingfromtraffic

andfactories.However,governmentsare_____________

toreducesmogasmuchaspossible.Now,let’slookatwhatsmogdoestoourhealth...StudentA:IfIcouldjuststopyouagain...Canyougiveusexamplesofthesemeasures?Lecturer:Well,forexample,factoriesmust___________aboutwhatchemicalstheyuse.Insomecities,whenthere’ssmog,peoplehaveto_____________in

thecentre.Now,let’smoveontothe_________

ofsmogonourhealth...airpolutionstop1900s1952coalwind4,000chemicalstakingmeasuresfollowrulespaytodriveimpactListeningtextLecturer:Goodevening,everyone,andthankyouforcomingtotoday’stalk.I’mDrBrownandI’mgoingtotalkaboutairpolutionincities—whatweallknowas“smog”.Pleasefeelfreetostopmeifyouhaveanyquestions.So,firstofall,abitofhistory.Theterm“smog”wasfirstusedinthe1800sincitiesthathadproblemswithsmokeandfog.StudentA:Sorryforinterrupting,butIbelieveitwasinthe1900s.Lecturer:Sorry,Imadeamistake.Youareright.Itwasinthe1900s.Thankyou.Londonwasoneofthecitieswheresmogcausedbigproblems.InDecember1952,itsufferedfrom“TheGreatSmog”.Itwasaverycoldwinter,soalotofcoalwasburnedathomeandinthefactories.Theproblemwasthattherewasnowind,sothicksmogcoveredthecity.Nowadays...StudentB:Excuseme,butcanIjustask—didthesmogcauseanydeaths?Lecturer:I’mafraidso.Accordingtoresearch,about4,000

peopleareknowntohavediedasaresultofthesmog,butthatnumbercouldbemuchhigher.Itwasterrible!Nowadays,smogstillexists,butisproducedbychemicalscomingfromtraffic

andfactories.However,governmentsaretakingmeasures

toreducesmogasmuchaspossible.Now,let’slookatwhatsmogdoestoourhealth...StudentA:IfIcouldjuststopyouagain...Canyougiveusexamplesofthesemeasures?Lecturer:Well,forexample,factoriesmustfollowrulesaboutwhatchemicalstheyuse.Insomecities,whenthere’ssmog,peoplehavetopaytodrivein

thecentre.Now,let’smoveontotheimpact

ofsmogonourhealth...Workinpairsandtalkaboutrecycling.ListeningforspeakingPost-listeningStudentATellStudentBaboutrecyclingusingtheinformationbelow.BepreparedtobecorrectedbyStudentB.•Theclassificationofhouseholdwasteaimstohelppeople

separatedifferenttypesofwaste.Thisisimportantbecausethesedifferenttypesofwastecanbedisposedofor

recycledappropriatelyandeffectively.•Householdwastecanberoughlydividedinto:*foodwaste*non-recyclablewaste*recyclablewaste,includingpaper,glass,plasticandusedbatteries•Chinaplanstointroducehouseholdwasteclassificationandsortinginthefirstbatchofcitiesby2020.OnlyBeijing,Shanghai,TianjinandChongqingareincludedinthefirstbatch.•Thetargetrecyclingrateinthesecitieshasbeensetat55%by2020.Workinpairsandtalkaboutrecycling.ListeningforspeakingPost-listeningStudentBListentoStudentAtalkingaboutrecycling.Interruptpolitelytocorrecthim/herusingthefollowinginformation:•Usedbatteriesareusuallyregardedasnon-recyclablewaste

andshouldbedisposedofseparately.•Thefirstbatchofcitiestointroducehouseholdwaste

classificationandsortingincludesBeijing,Shanghai,Tianjin,

Chongqingandallcapitalsofprovincesandautonomousregions.•Thetargetrecyclingrateinthesecitieshasbeensetat35%by2020.StudentA:Goodevening,everyone,andthankyouforyourcomingtotoday’stalk.I’mgoingto