【课件】Unit+3Reading+for+Writing+课件人教版（2019）选择性必修第四册

Unit3SeaExplorationUsingLanguageExpressyouropinionsonseaexplorationExpressyouropinionsonseaexploration.Readthetwotextsbelowandfindtheargumentsandevidenceinthem.ArgumentativeessayReadthetitleandfigureoutthetexttype.LeadinParagraph1(Text1)Whenpeopletalkofexploringtheseamore,theyusuallymeanexploitingit.Seaexplorationhascausedmanyproblemsandwillcontinuetocausemore.Paragraph1(Text2)Totrulyunderstandourplanet,wemustexploretheoceanswhichcovermostofit.Opponentsmaybeconcerned,butseaexplorationisimportantforourfuture.Forexample,scientificresearchshipscanhelpaddressimportantissuessuchasclimatechange.Weneedtounderstandwhatishappeningtoourplanetsothatwecantakeaction.Therefore,moreresearchisnecessary.Readthe1stparagraphofthetwotextsandfigureouttheopinionofeachtext.Activity1Activity2Text1Whenpeopletalkofexploringtheseamore,theyusuallymeanexploitingit.Seaexplorationhascausedmanyproblemsandwillcontinuetocausemore.Moreexplorationmeansmorepollution.TheDeepwaterHorizonspilledover200milliongallonsofoilintotheseain2010.Plasticpollutionisalsobad,killingmanybirdsandfish,andhasevenbeenfoundinourtapwater.Miningforresourcesisverydamaging,especiallyintheArctic.Becauseofclimatechange,thereislessicenow,whichmeanswecanlookformorefossilfuelsfurthernorth.Butifweburnthese,theicewillmeltmoreandthisnegativecyclewillcontinue.Climatechangeiswarningusthatsomethingisverywrong.Overfishingisanotherproblem.Whalesanddolphinsarealsohuntedfortheirmeatorforso-calledresearch.Althoughthiswasbannedin1982,somecountriesarestill“murdering”theseintelligentcreatureswithoutmercy.Theseaishometolife,nothumanbeings’possessions.Itishuge,butitismoresensitivethanwethink.Ifwedonotprotectit,futuregenerationswillnotforgiveus.ReadText1andfindtheargumentsandevidenceinthem.Arguments1.Explorationcausespollution.2.Miningforresourcesisdamaging.3.Overfishingisanissue.1.DeepwaterHorizonoilspill.2.Plasticpollution1.IthurtstheArctic.2.Burningfossilfuelsaddstoclimatechange.1.Whalesanddolphinsarehunted.2.Banned,butsomecountriesstilldoingit.EvidencesText2Totrulyunderstandourplanet,wemustexploretheoceanswhichcovermostofit.Opponentsmaybeconcerned,butseaexplorationisimportantforourfuture.Forexample,scientificresearchshipscanhelpaddressimportantissuessuchasclimatechange.Weneedtounderstandwhatishappeningtoourplanetsothatwecantakeaction.Therefore,moreresearchisnecessary.Understandingmoreabouttheseawillalsohelpusmanageitsresourcesbetter.Loggingnewspecieswillimproveourunderstandingoflifeontheearth.Itmayhelpusdiscovernewmedicines,aswellasnewsourcesoffoodandenergy.Accessingthedeepoceanmayalsohelpustopredicteventssuchasearthquakes.Thepopulationoftheworldisgrowingandweneednewresourcesforfuturedevelopment.Thereareprobablyvastamountsofresourcesundertheseaandice,notjustoilandgasbutalsovaluableminerals.Ofcourse,therearestillenvironmentalrisks.However,theseshouldbebalancedwitheconomicneeds.Hopefully,astechnologyimproves,wemayhavemoreoptionsformanagingthisbalance.Arguments1.Seaexplorationisimportantforourfuture.2.Understandingmoreabouttheseawillalsohelpusmanageitsresourcesbetter.3.Weneednewresourcesforfuturedevelopment.Scientificresearchshipscanhelpaddressimportantissueslikeclimatechange.1.Newmedicines,foodresourcesandenergy.2.Predicteventssuchasearthquakes.Vastamountsofresourcesmaybeundertheseaandice.EvidencesLookatthetwochartsbelowanddecidewhichonesupportswhichtext.（P33Ex.2）197419791984198919941999200420092013Text2Text1Activity3Ingroups,discussthefollowingquestionsandtakenotes.Whatisyouropinionaboutseaexploration?Doyouagreewithoneargumentmorethantheother?2.Hasyouropinionchangedafterreadingthetwotexts?Whyorwhynot?3.Arethereanyotheraspectsofseaexplorationnotmentionedthatyouthinkareimportant?Activity4Whatisyouropinionaboutseaexploration?Doyouagreewithoneargumentmorethantheother?Ithinkseaexplorationisawonderfulidea,becauseeveniftherearenoimmediaterewardsforit,toexploreandfindoutmoreaboutourworldisalwaysagoodthing.Ingroups,discussthefollowingquestionsandtakenotes.Activity42.Hasyouropinionchangedafterreadingthetwotexts?Whyorwhynot?Yes,myopinionhaschanged.BeforereadingText1,Ididnotknowthatseaexplorationcouldaddtoseapollution,viadeepseadrillingforexample.Ingroups,discussthefollowingquestionsandtakenotes.Activity43Arethereanyotheraspectsofseaexplorationnotmentionedthatyouthinkareimportant?Wedonotknowwhatwedon’tknow;Weneedtoexploretheoceansothatwecanbetterunderstandissuessuchasacidification(酸化)whichleadstoseawatertobecomemoreacidic,andhowtofighttheseproblems;Studyingtheoceancausesthecreationofnewtechnologiesthatcanhelpusinotherareas.Ingroups,discussthefollowingquestionsandtakenotes.Activity4Basedonyournote,writeanargumentativeessayonseaexploration,expressingyouropinionswithsupportingfacts.1.Thefollowingquestionsmayhelpyou.Whatisthepurposeofseaexploration?Howdoesseaexplorationhelpustoprotectthesea?Howdoesseaexplorationcausedamagetothesea?Isthereagoodbalancebetweenprotectionandexploitation?Activity5topicbenefitdamageconclusion/restatement【文章架构】明确体裁话题议论文，探索海洋seaexploration确定时态人称一般现在时，第一人称布局文章架构首段：提出论点中段：事例论据尾段：明确结论1.使海洋可持续发展2.了解海洋环境3.更好地了解气候TopicManynationshavebeenfacedwiththeproblemof...(+话题)Recentlytheproblemhasbeenbroughtintofocus.Recentlytheissuehasarousedgreatconcernamong...(+国家)Nowadaysthereisagrowingconcernover...(+话题)Accordingtoarecentsurvey，...(话题)Withtherapiddevelopmentof，...(话题)Somepeoplethink/believethat...(正方观点),otherargue/claimthat...(反方观点),.Obviouslyithasbothadvantagesanddisadvantages．ArgumentsHowever,justaseverycoinhastwosides,...(话题)hasitsdisadvantages．

...hasmanyadvantages.Forexample...Itplay(s)animportantrole／partin...（好处/坏处）

EvidencesFromwhathasbeendiscussedabove,wecandrawtheconclusionthat...

Weshouldtakemeasurestocontroltherapidlyincreasingworldpopulation．

Thegovernmentdecidedtotakestrongmeasuresagainst...Thereisnoeasymethod,but...mightbeofsomehelp.

Tosolvetheabove-mentionedproblem,wemust...ConclusionSeaexplorationhasbecomeanimportantissueformanycountries.Whilesomepeoplesaythatweshouldnotexploretheoceans.However,inmyopinion,exploringisnotthesameasexploiting.Whenweexploreaplace,wegojusttoseeandunderstandwhatisthere.Weshouldexploretheocean,firstandforemost,becausewedonotknowwhatwedonotknow.Wethoughtweknewmanyabouttheocean,butwewerewrong.Thereissomuchunknownwaitingforus.SampleWriting

Thisbringsupthesecondpoint.Wealreadyknowmanythingsabouttheocean,butweneedtolearnmore.Agoodexampleisoceanacidificationwhichcancausecoraltodie.However,weneedtolearnmoretofindouthowtostopit.Weneedmoreresearchtoseewhatisgoingon,andtocomeupwithplansandsolutions.

Finally,

todothisresearch,wehavetoenteranextremeenvironmentnotveryfriendlytohumans.Thisrequiresthedevelopmentofnewtechnologiesthatcanalsobenefitusinotherareas.

Fromwhathasbeendiscussedabove,wecandrawtheconclusionthattherearemanygoodreasonstoexploretheoceans.Ifwecareaboutscience,aboutprotectingouroceans,aboutourdevelopment,weneedtodoallwecantosupportoceanexploration.exploit

vt._____________________________gallon

n._____________________________

murder

vt./n._______________________mercy

n._________________________possession

n.____________________________opponent

n._________________________log

vt.____________________________

n.___________________________marine adj.__________________________开发；利用；剥削[usuallypl.]

个人财产；拥有；控制反对者；对手；竞争者谋杀；凶杀；毁坏把······载入正式记录；记录仁慈；宽恕；恩惠加仑（容积单位，1英制加仑约等于4.5升）WordsandPhrases正式记录：日志；原木海的；海产的；海生的warn

v.提醒注意(可能发生的事)；使警惕warnsb.of/aboutsth就某事而警告某人warnsb(not)todosth警告某人不要做某事warnsb.+that从句

警告某人……1.每个来访者都被警告有危险。。

Everyvisitor_______________________.2.他被警告会得到报复。

Hewaswarned_______hemightberevenged.1.Climatechangeiswarningusthatsomethingisverywrong.iswarnedofthedangerthat2.Althoughthiswasbannedin1982,somecountriesarestill“murdering”theseintelligentcreatureswithoutmercy.mercy

n.仁慈；宽容；恩惠showmercytosb.怜悯某人havemercyon对……表示怜悯atthemercyof任凭……的摆布；在……的支配中withoutmercy

残忍地outofmercy出于怜悯I’mnotgoingtoputmyselfatthemercyofthebank.Wewer