Unit3EnvironmentalProtectionReadingandThinking公开课课件高中英语人教版选择性

Unit3EnvironmentalProtectionReadingandThinking010204Knowabouttheclimatechangeandunderstandthemainideaofeachparagraph.Voiceyourpersonalopinionsonhowtoprotectenvironmentbyteamwork.Learnaboutthe“greenhouseeffect”andknowhowitworks.LearningObjectives:03Analysetheconsequencesofclimatechangeandenhancetheawarenessofenvironmentalprotection.Lookatthepictureandgraphbelow.Whatisitabout?Whatinformationcanyougetfromit?Theearthisbecomingwarmerandwarmer.Why?Becauseoftheglobalwarming.Whatotherconsequencesoftheglobalwarming?theriseofsealeveldyinganimalscoastalcitiessubmergednaturaldisastersextremeweathereconomiclossesClimateChangeRequiresTheWorld’sAttention1.What’sthepassagemainlyabout?A.Somepolarbearsdiedofstarvation.B.Whatthegreenhouseeffectis.C.Howthepolarbearsfindfood.D.Globalwarminghascausedsomedisastersandwemustpayattentiontoit.1.Whatistheproblem?2.Whataretheevidencesofclimatechange?Para1ClimateChangeRequiresWorld’sAttentionWehaveknownaboutclimatechangefordecades.ThereislittledoubtthatEarthisgettingwarmerandwarmer(seethegraph).Awarmingoceanandatmospherealongwithmeltingiceandrisingsealevelsprovideevidenceofadramaticchangeintheglobalclimate.Para1The________isgettingwarmerandwarmer.Evidence1:________________________________Evidence2:______________Evidence2:_______________Earthawarmingoceanandatmospheremeltingicerisingsealevelsclimatechange1.Whendidithappen?2.Wheredidithappen?3.What

didtheyfind?Para2Para2TimeWhereWhathappened2013Norway’sArcticIslandofSvalbard.Apolarbeardiedofstarvation.climatechangestarvationlongerfood-seekingtravellackoffoodlow

sea-icelevelsThefollowingreasonsaccountforthedeathofthepolarbear,withoneinfluencinganother.Puttheminacorrectlogicalorder.

Whatistherootcause?1.Whatisthedefinitionofnaturalgreenhouseeffectand

man-madegreenhouseeffect?2.

Whatisthefunctionofnaturalgreenhouseeffect?3.Whatistheproblemofman-madegreenhouseeffect?Para3Definition:HeatfromthesunenterstheatmosphereandwarmstheEarth’ssurface.Function:KeepingEarth’swarmandhabitable.Definition:Peopleproducehugeamountsofextragreenhousegases.Abigproblem:CausingEarth’ssurfacetemperaturetorisequickly.Naturalgreenhouseeffect

Man-madegreenhouseeffect

D.HeatenterstheatmosphereB.ReflectedsunlightAtmosphereC.Heatreflectedbacktoearth’surface

A.HeatreleasedbackintospaceFindouthowthegreenhouseeffectworks

A.D.C.B.extremerainstorms,heatwavesseriousdamage,costinghumanlives,economiclossesScanPara.4tofinishthefollowingchart1.

2.

notonly3.

.butalso4.

.extreme5.

and6.

causing7._______________________extremeweathernaturaldisasterscausingseriousdamagecostinghumanlivesrainstormheatwaves

examplesTheriseintemperature

leadsto

resultsdeathsandeconomiclossesWhohastheresponsibilitytohelpreduceglobalwarming?GovernmentsIndividualsPara.51.makepolicies1.restricttheamountofcarbondioxideourlifestyleproduce2.educateeveryoneaboutglobalwarming,alongwithitscausesandimpacts2.takeappropriateactionsandmeasurestoreducegreenhousegasemissionsReadformainidea＆texttype

MatchthemainideawitheachparagraphPara1Para2Para3Para4Para5Aproblemofclimatechange.Thecausesoftheincreaseintheglobalaveragesurfacetemperature.Theconsequencesoftheriseintemperature.Thesolutionstoreducinggreenhousegasemissions.Anexactexampleofclimatechange.Thedevelopmentofthepassage.problemexamplecausesconsequencessolutions1.Whattypeofwritingisthispassage?A.ArgumentativewritingB.NarrativewritingC.ExpositorywritingD.Advertisingwriting2.Inwhichpartofamagazinemaywefindthispassage?A.EntertainmentB.EconomyC.EducationD.EnvironmentInParagraph5,theauthorhopeseveryonecantakeactionstoreduceour“carbonfootprint”.CarbonFootprintKnowledgeExtensionTheamountofcarbondioxide(CO2)thatapersonororganizationproducesbythethingstheydo,usedasawayofmeasuringtheamountofharmtheydototheenvironment.Whatcanwedoinourdailylifetohelptoprotectourenvironment?Discussion

SortthegarbageAbatetheuseofplasticbagsValueourownrole

Endwastingresources

Encourageotherstopaticipateinit

AlterourlifestyleRideabikeorwalktoschoolTurnoffallelectricdeviceswhennotinuseHelpinformthosearoundthedangerofglobalwarming…VideoAppreciation

Lucidwatersandlushmountainsarevaluableas"mountainsofgoldandsilver".

绿水青山