Unit 3 Environemntal Protection Using Language 教案-高中英语人教版（2019）选择性必修第三册

2019新人教高中英语选择性必修三Unit3EnvironmentalProtectionUsingLanguage(P30-P31)公开课教案Teachingaims:1.Enablestudentstoobtainkeyinformationondifferentenvironmentalissuessuchasclimatechangeandairpollutionfromthelisteningmaterial.2.Guidestudentstoidentifyexpressionsusedtointroduceenvironmentalissues.3.Helpstudentstoexpressyourideasonthecausesofenvironmentalproblemsbyusingexpressionsofgivingopinionsandreasons.4.Usetheinformationinthisunittocontributetoyourawarenessandunderstandingofimportantenvironmentalissuesthataffecttheworldandyourfutures.Teachingkeypoints:Helpstudentstoobtainkeyinformationondifferentenvironmentalissuessuchasclimatechangeandairpollutionfromthelisteningmaterial.Helpstudentstousetheexpressionsinthelisteningtexttoexpressairpollutionandsolutions.Teachingdifficultpoints:Enablestudentstocatchthekeyinformationofthelisteningmaterial.Enablestudentstoexpresstheirideasonthecausesandsolutionsofairpollutionandlearnfromthemwiththehelpofthetargetvocabularyandexpressions.Teachingprocedures:StepⅠLead-inLookatthepicturesanddiscussthequestionsingroups1.Whatinformationcanyougetfromthesepictures?2.Howdothesesituationsinfluenceyourlife?Suggestedanswers:1.There’ssmogintheair.Thecoalisburningandtheskyisnotclean.Theairispolluted.2.Theyareharmfultoourenvironmentandhealth,andalsohaveabadinfluenceonourliving.Forexample,peoplehavetotakefacemaskswhentheygooutdoors.StepⅡPre-listeningActivity1Discussinyourgroupsandanswerthequestions1.Whatdidyouknowabout“smog”?2.Is“smog”amainsourceofpollution?Suggestedanswers:1.Smogisakindofdirtyairthatlookslikeamixtureofsmokeandfog,causedbysmokefromcarsandfactoriesincities.2.Yes,smogmakesairdirty.Activity2Guessthecontentofthelisteningmaterial(interview)Suggestedanswers:Theywillprobablybetalkingaboutairpollution.Forexample,thedefinitionof“smog”,theserioussituationof“smog”,andgovernment’smeasurestodealwith“smog”.Activity3Watchashortvideoandanswerthefollowingquestions1.Whatcanyoulearnfromthevideo?2.Workinagroup,anddiscussthecausesofairpollution.3.Whatcanwedotosolveairpollution?Suggestedanswers:1.Fromthisvideo,Iknowwhatisairpollution,andthecausesanddamagesofairpollutionaswellaswhatweshoulddotoprotectourairandenvironment.2.Someairpollutioncomesfromnaturalsources,likevolcaniceruptions,butmostairpollutionresultsfromhumanactivities,suchasenergyuseandagriculture.3.Wecanlimittoxicsubstances,decreasetheuseoffossilfuels,usepublictransportationandsoon.StepⅢWhile-listeningActivity1ListentoaninterviewwithanairpollutionexpertanddecidewhetherthestatementsareTrue(T)orFalse(F)1.Theexpression“smog”originatedinBritainandmeansacombinationof“smoke”and“fog”.2.SmogbecameasevereprobleminBritainbecausepeopleatthattimeburntlotsoffossilfuels.3.TheworstsmoginBritishhistoryhappenedinLondonin1942.4.TheGreatSmogofLondonclaimed5,000lives.5.Later,theUKgovernmentorderedpeoplenottoburnwoodintheirhomes.Suggestedanswers:1.T2.T3.F(1952)4.F(4,000)5.F(coal)Activity2Listenagainandtakenotesonwhattheexpertsaid.ThensummarisetheinformationyougotfromtheinterviewBenDrake,anexpertonairpollution,isbeinginterviewedontheradio.HesaidthatsmogwasasevereproblemcenturyinBritain.Atthattime,Britainwasexperiencingaboomin.Factoriesandhomes,whichcreatedsmog.HealsomentionedtheheavysmoginLondonin1952.LatertheUKgovernmentrestrictedinhomesandforcedfactoriesto.Assmogisharmfultoeveryone,theexpertadvisedusto,use,andfurtherdevelop.

Suggestedanswers:intheearly20th;industry;usedlotsofcoal;wasparticularlybadandcausedover4,000deaths;burningcoal;moveawayfromcitycenters;replacecoalwithcleanerformsofenergy;newenergy-efficientvehicles;greentechnologyActivity3Workingroupsanddiscussthequestions.Theexpressionsintheboxmayhelpyou1.Haveyouexperiencedheavysmogwhereyoulive?Haveyouseenphotosofbigcitiesundercloudsofsmog?Whatisitlike?2.WhatdoyouthinkarethemajorcausesofsmoginChina?3.Whatmeasureshavethegovernmentandcitizenstakentohelpaddresstheproblem?Referringtocommonknowledge·Everyoneknowsthat...·Thereisnodoubtthat...·Mostpeoplethinkthat... ·Weallknowthat...·Asisknowntoall,... ·Itisobviousthat...RelatedWordsPM2.5(particlematter2.5)smogalert(雾霾警报)smoggyday anti-smogmaskair-qualityindex(空气污染指数)heavy/thick/densesmogcleanenergy publictransportrestricttheconsumptionoffossilfuelenforcenewemissionstandardsSuggestedanswers:Theanswersvary.StepⅣPost-listeningActivity1ReadthelisteningmaterialcarefullyH=HostessBD=BenDrakeH:Goodmorning,listeners.Airpollutionisaseriousproblem,withurbanpopulationsparticularlyatriskfromsmog.BenDrakeisanexpertonairpollution,andheisjoiningustodaytotalkaboutthisissue.Ben,wheredoestheword“smog”comefrom?BD:“Smog”comesfromacombinationofthewords“smoke”and“fog”.ItoriginatedinBritainintheearly20thcentury,whensmogwasasevereproblem.H:Whywasitsobadthen?BD:Well,Britainwasoneofthefirstindustrialcountriesandfactoriesandhomesusedlotsofcoal.Whenburnt,thecoalproducedharmfulemissionswhichcreatedlotsofsmog.InLondon,theyalsocalledthesmoga“peasoup”becauseitwasasthickassoup.H:Thatsoundsterrible!Whatproblemsdiditcause?BD:Smogcausedmanyhealthissuesandkilledmanypeople.TheworstcasehappenedinLondonin1952.Overafewdayswhenthesmogwasparticularlybad,4,000deathswererecorded.Itwasnecessarytotakeimmediateaction.TheUKgovernmentorderedpeoplenottoburncoalintheirhomesandforcedfactoriestomoveawayfromcitycentres.H:Butsmogisstillanimportantissueinmanyplaces.Whatcanbedoneaboutit?BD:Smogisharmfultoeveryone,especiallytochildren,oldpeopleandthosewithheartorlungproblems.Wehavetore