Unit3UsingLanguageReadingforWriting课件高二英语精美课件精美教案（人教版2019选择性必修四）

LearningObjectives

Afterthisperiod,youwillbeableto1.analyzetheargumentsandevidenceinthetexts;2.expressyouropinionsonseaexploration;3.writeanargumentativeessay.Lead-inDiscovernewspeciesProvidegasandoilPredictnaturaldisastersWhatcanseaexplorationbringtous?Whatarethesideeffectsofseaexploration?OverfishingOilspillPlasticpollutionPlasticpollutionWhenpeopletalkofexploringtheseamore,theyusuallymeanexploitingit.Seaexplorationhascausedmanyproblemsandwillcontinuetocausemore.Moreexplorationmeansmorepollution.TheDeepwaterHorizonspilledover200milliongallonsofoilintotheseain2010.Plasticpollutionisalsobad,killingmanybirdsandfish,andhasevenbeenfoundinourtapwater.Miningforresourcesisverydamaging,especiallyintheArctic.Becauseofclimatechange,thereislessicenow,whichmeanswecanlookformorefossilfuelsfurthernorth.Butifweburnthese,theicewillmeltmoreandthisnegativecyclewillcontinue.Climatechangeiswarningusthatsomethingisverywrong.Viewpoint/argumentSubpoint/Evidence1Fact1/2Subpoint/Evidence2Fact1/2Overfishingisanotherproblem.Whalesanddolphinsarealsohuntedfortheirmeatorforso-calledresearch.Althoughthiswasbannedin1982,somecountriesarestill“murdering”theseintelligentcreatureswithoutmercy.Theseaishometolife,nothumanbeings’possessions.Itishuge,butitismoresensitivethanwethink.Ifwedonotprotectit,futuregenerationswillnotforgiveus.Subpoint/Evidence3ExamplesRestatementStatisticsAppeal:Lessexplorationandmoreprotection

Detailreading:PleasereadtheFIRSTPARTagainandfillintheblanksbelow.

Viewpoint:1.___________seaexploration.TheproblemsofexploringseaMoreexplorationmeansmore2.___________.Gallonsofoil3.___________intothesea.4.___________pollution5.___________marinelife.Miningforresourcesisvery6.___________7._________________leadstolessice.Lookformorefossilfuelsfurthernorthandthe8._________ofthemwillcausemoreicetomelt.9._____________isanotherproblemOpposedtopollutionisspilledPlasticiskillingdamagingClimatechangeburningOverfishing

Totrulyunderstandourplanet,wemustexploretheoceanswhichcovermostofit.Opponentsmaybeconcerned,butseaexplorationisimportantforourfuture.Forexample,scientificresearchshipscanhelpaddressimportantissuessuchasclimatechange.Weneedtounderstandwhatishappeningtoourplanetsothatwecantakeaction.Therefore,moreresearchisnecessary.Understandingmoreabouttheseawillalsohelpusmanageitsresourcesbetter.Loggingnewspecieswillimproveourunderstandingoflifeontheearth.Itmayhelpusdiscovernewmedicines,aswellasnewsourcesoffoodandenergy.Accessingthedeepoceanmayalsohelpustopredicteventssuchasearthquakes.RefuteopposedopinionViewpointEvidences/ExamplesEvidences/Examplessubpoint1Subpoint2

Thepopulationoftheworldisgrowingandweneednewresourcesforfuturedevelopment.Thereareprobablyvastamountsofresourcesundertheseaandice,notjustoilandgasbutalsovaluableminerals.Ofcourse,therearestillenvironmentalrisks.However,theseshouldbebalancedwitheconomicneeds.Hopefully,astechnologyimproves,wemayhavemoreoptionsformanagingthisbalance.Evidences/ExamplesConclusion

Viewpoint:______________SeaexplorationHelpaddressimportantissueslike1._________________.Understandingmoreabouttheseaandtake2.____________action.andhelpusmanageits3._________better4._________newspeciesimprovesourunderstandingoflifeontheearthandenableustodiscover5.______________,____and________.Accessingthedeepoceanhelpustopredict6._________suchasearthquakesNewresourcesforgrowing7.____________andfuturedevelopment.Conclusion:Balance8.__________needsandenvironmental9._____.InfavorofclimatechangenecessaryresourcesLoggingnewmedicinesfoodenergydisasterspopulationeconomicrisksIngroups,discussthefollowingquestionsandtakenotes.1.Whatisyouropinionaboutseaexploration?Doyouagreewithoneargumentmorethantheother?Ithinkseaexplorationisawonderful

idea,becauseevenifthereareno

immediaterewardsforit,toexplore

andfindoutmoreaboutourworldis

alwaysagoodthing.2Hasyouropinionchangedafterreadingthetwotexts?Whyorwhynot?Yes,myopinionhaschanged.BeforereadingText1,Ididnotknowthatseaexplorationcouldaddtoseapollution,viadeepseadrillingforexample.Basedonyournote,writeanargumentativeessayonseaexploration,expressingyouropinionswithsupportingfacts.1Thefollowingquestionsmayhelpyou.Whatisthepurposeofseaexploration?Howdoesseaexplorationhelpustoprotectthesea?Howdoesseaexplorationcausedamagetothesea?Isthereagoodbalancebetweenprotectionandexploitation?

Usefulsentencescanbeusedforyourwriting

5.Withallabovementionedtakenintoconsideration,itisworthwhileto...6.Inconclusion,thebenefitsofseaexplorationgreatlyoutweightherisksinthat...

onepossibleversion

One

Eventhoughtheoceansmakeupabout

70%oftheearth’ssurface,morethan

80%oftheoceansremainunexplored.

Whilesomepeoplesaythatweshould

notexploretheoceans,

theirreasoning

isnotverysound.Exploringisnotthe

sameasexploiting.Whenweexploreaplace,wegojusttoseeandunderstandwhatisthere.Weshouldexploretheocean,firstandforemost,becausewedonotknowwhatwedonotknow.Wethoughtweknewmanyabouttheocean,butwewerewrong.Therecouldbelifeformsintheocean,forexample,thatfitnoneoftheneatcategorieswehaveforlifewhilewehavenocluethattheyevenexist.Finally,todothisresearch,wehavetoenteranextremeenvironmentnotveryfriendlytohumans.Thisrequiresthedevelopmentofnewtechnologiesthatcanalsobenefitusinotherareas.Forexample,inmanyways,thedeepoceanresemblesouterspace.Thetechnologiescanbenefiteachother.Foranotherinstance,thetechnologyofamechanicalarmtocollectsampleswithhasbeenusedinfactoriesanddevelopmentofartificiallimbsforhumans.Allinall,therearemanygoodreasonstoexploretheoceans.Ifwecareaboutscience,aboutprotectingouroceans,andaboutdevelopingnewtechnologies,weneedtodoallwecantosupp