Unit3UsingLanguage讀寫課課件-高中英語人教版選擇性必修第四冊

人教版（2019）選擇性必修四Unit3SeaExplorationUsingLanguageExpressyouropinionsonseaexplorationReadthefirstparagraphofthetwotextsandanswerthequestions.2

Whatarethethreepartsinargumentativeessays?1

Whatisthetexttypeofthetwopassages?LeadinParagraph1(Text1)Whenpeopletalkofexploringthesea

more,

theyusuallymeanexploitingit.

Sea

explorationhascausedmanyproblems

andwillcontinuetocausemore.Paragraph1(Text2)Totrulyunderstandourplanet,wemustexploretheoceanswhichcovermostofit.Opponentsmaybeconcerned,butseaexplorationisimportantforourfuture.Forexample,scientificresearchshipscanhelpaddressimportantissuessuchasclimatechange.Weneedtounderstandwhatishappeningtoourplanetsothatwecantakeaction.Therefore,moreresearchisnecessary.ArgumentativeessayArgument,evidence,restatement/recommendation/acalltoactionActivity1Text1Whenpeopletalkofexploringthesea

more,

theyusuallymeanexploitingit.

Sea

explorationhascausedmanyproblems

andwillcontinuetocausemore.Moreexplorationmeansmorepollution.TheDeepwaterHorizonspilledover200milliongallonsofoilintotheseain2010.Plasticpollutionisalsobad,killingmanybirdsandfish,andhasevenbeenfoundinourtapwater.Readthetwotextsbelowandfindtheargumentsandevidenceinthem.Miningforresourcesisverydamaging,especiallyintheArctic.Becauseofclimatechange,thereislessicenow,whichmeanswecanlookformorefossilfuelsfurthernorth.Butifweburnthese,theicewillmeltmoreandthisnegativecyclewillcontinue.Climatechangeiswarningusthatsomethingisverywrong.Overfishingisanotherproblem.Whalesanddolphinsarealsohuntedfortheirmeatorforso-calledresearch.Althoughthiswasbannedin1982,somecountriesarestill“murdering”theseintelligentcreatureswithoutmercy.Theseaishometolife,nothumanbeings’possessions.Itishuge,butitismoresensitivethanwethink.Ifwedonotprotectit,futuregenerationswillnotforgiveus.Arguments1Explorationcausespollution.2Miningforresourcesisdamaging.3Overfishingisanissue.DeepwaterHorizonoilspillPlasticpollutionIthurtstheArctic.Burningfossilfuelsaddstoclimatechange.Whalesanddolphinsarehunted.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.Arguments1Seaexplorationisimportantforourfuture.2Understandingmoreabouttheseawillalsohelpusmanageitsresourcesbetter.3Weneednewresourcesforfuturedevelopment.Scientificresearchshipscanhelpaddressimportantissueslikeclimatechange.Newmedicines,foodresourcesandenergy.Predicteventssuchasearthquakes.Vastamountsofresourcesmaybeundertheseaandice.EvidencesLookatthetwochartsbelowanddecidewhichonesupportswhichtext.Activity2197419791984198919941999200420092013Text2Text1GlobaltrendsinthestateofworldmarinefishstocksIngroups,discussthefollowingquestionsandtakenotes.Activity31Whatisyouropinionaboutseaexploration?Doyouagreewithoneargumentmorethan

theother?2Hasyouropinionchangedafterreadingthetwotexts?Whyorwhynot?3Arethereanyotheraspectsofseaexplorationnotmentionedthatyouthinkareimportant?Ingroups,discussthefollowingquestionsandtakenotes.Activity31Whatisyouropinionaboutseaexploration?Doyouagreewithoneargumentmorethan

theother?Ithinkseaexplorationisawonderful

idea,becauseevenifthereareno

immediaterewardsforit,toexplore

andfindoutmoreaboutourworldis

alwaysagoodthing.Ingroups,discussthefollowingquestionsandtakenotes.Activity32Hasyouropinionchangedafterreadingthetwotexts?Whyorwhynot?Yes,myopinionhaschanged.BeforereadingText1,Ididnotknowthatseaexplorationcouldaddtoseapollution,viadeepseadrillingforexample.Ingroups,discussthefollowingquestionsandtakenotes.Activity33Arethereanyotheraspectsofseaexplorationnotmentionedthatyouthinkareimportant?Wedonotknowwhatwedon’tknow;Weneedtoexploretheoceansothatwecanbetterunderstandissuessuchasacidificationwhichleadstoseawatertobecomemoreacidic,andhowtofighttheseproblems;Studyingtheoceancausesthecreationofnewtechnologiesthatcanhelpusinotherareas.Basedonyournote,writeanargumentativeessayonseaexploration,expressingyouropinionswithsupportingfacts.Activity41Thefollowingquestionsmayhelpyou.Whatisthepurposeofseaexploration?Howdoesseaexplorationhelpustoprotectthesea?Howdoesseaexplorationcausedamagetothesea?Isthereagoodbalancebetweenprotectionandexploitation?2UsethePEELmethodtohelpstructureyourargument.PointWhatpointdoyouwanttomake?EvidenceWhatfactsandexamplescanyoufindtosupportyourpoint?Howreliablearethesources?ExplanationExplainhowthefactssupportyouropinionandshowotheropinionstobeincorrect.LinkConnectthispointtothenextpoint,orbacktothemainpointoftheessayorparagraph.3Writeyourdraftandexchangeitwithapartner.4Getyourfeedbackandreviseyourdraft.

Eventhoughtheoceansmakeupabout

70%oftheearth’ssurface,morethan

80%oftheoceansremainunexplored.

Whilesomepeoplesaythatweshould

notexploretheoceans,

theirreasoning

isnotverysound.Exploringisnotthe

sameasexploiting.Whenweexploreaplace,wegojusttoseeandunderstandwhatisthere.Weshouldexploretheocean,firstandforemost,becausewedonotknowwhatwedonotknow.Wethoughtweknewmanyabouttheocean,butwewerewrong.Therecouldbelifeformsintheocean,forexample,thatfitnoneoftheneatcategorieswehaveforlifewhilewehavenocluethattheyevenexist.Thisbringsupthesecondpoint.Wealreadyknowmanythingsabouttheocean,butweneedtolearnmore.Agoodexampleisoceanacidification.WeknowthatitiscausingcoralSampleWritingFinally,todothisresearch,wehavetoenteranextremeenvironmentnotveryfriendlytohumans.Thisrequiresthedevelopmentofnewtechnologiesthatcanalsobenefitusinotherareas.Forexample,inmanyways,thedeepoceanresemblesouterspace.Thetechnologiescanbenefiteachother.Foranotherinstance,thetechnologyofamechanicalarmtocollectsampleswithhasbeenusedinfactoriesanddevelopmentofartificiallimbsforhumans.Allinall,therearemanygoodreasonstoexploretheoceans.Ifwecareaboutscience,aboutprotectingouroceans,andaboutdevelopingnewtechnologies,weneedtodoallwecantosupportoceanexploration.todie.Weknowthatusinglessfossilfuelwouldcausetheprocesstoslowdown.However,weneedtolearnmoretofindouthowtostopit.Weneedmoreresearchtoseewhatisgoingon,andtocomeupwithplansandsolutions.exploit

vt._____________________________________gallon

n.

______________________________________

murder

vt.______________________________________

n.

______________________________________

mercy

n.______________________________________possession

n.______________________________________opponent

n.

______________________________________log

vt._____________________________________

n.

______________________________________marine

adj.______________________________________開發(fā)；利用；剝削謀殺；兇殺[usuallypl.]

個人財產(chǎn)；擁有；控制反對者；對手；競爭者謀殺；兇殺；毀壞把······載入正式記錄；記錄仁慈；寬??；恩惠加侖（容積單位，1英制加侖約等于4.5升）WordsandPhrases正式記錄：日志；原木海的；海產(chǎn)的；海生的murder1.n.

thecrimeofkillingsbdeliberately謀殺；兇殺?

Hewasfoundguiltyofmurder.經(jīng)裁決，他犯有謀殺罪。?

Shehasbeenchargedwiththeattemptedmurderofherhusband.

她被指控意圖謀殺丈夫。?

tocommit(a)murder犯謀殺罪?

amurdercase/investigation/trial兇殺案件/調(diào)查；謀殺案的審判?

Therebelswereresponsibleforthemassmurderof400civilians.叛亂者對屠殺400名平民負(fù)有責(zé)任。?

Whatwasthemurderweapon?用的是什么兇器？?

Theplayisamurdermystery.這出戲說的是一樁神秘的兇殺案。重點(diǎn)單詞murder2.n.

(informal)usedtodescribesththatisdifficultorunpleasant困難的事；討厭的事?

It’smurdertryingtogettotheairportatthistimeofday.

這個時候要趕到機(jī)場簡直要命。?

Itwasmurder(=verybusyandunpleasant)intheofficetoday.

今天辦公室里忙亂得要命。IDIOMS1.getawaywithmurder逍遙法外；（做了錯事而）安然無事?

Hischarmandthefactthatheissolikeableoftenallowshimtogetawaywithmurder.他的魅力和受寵程度常讓他無法無天為所欲為。2.murderwillout殺人早晚要敗露；天網(wǎng)恢恢，疏而不漏murder3.vt.

tokillsbdeliberatelyandillegally謀殺；兇殺?

Hedeniesmurderinghiswife’slover.他否認(rèn)謀殺了妻子的情夫。?

Themurderedwomanwaswellknowninthearea.

被殺害的女人在這個地區(qū)很有名氣。IDIOMSIcouldmurdera...我非常想吃（或喝）?

Icouldmurderabeer.我很想來杯啤酒。?

Icouldmurdersomechips.我真想敞開肚子吃薯片。mercy1.n.

akindorforgivingattitudetowardssbthatyouhavethepowertoharmorrighttopunish仁慈；寬恕?

toask/beg/pleadformercy請求/乞求/祈求寬恕?

Theyshowednomercytotheirhostages.他們對人質(zhì)絲毫不講仁慈。?

Godhavemercyonus.上帝憐憫我們吧。?

Thetroopsareonamercymission(=ajourneytohelppeople)inthewarzone.

部隊(duì)出發(fā)救助戰(zhàn)區(qū)民眾。2.n.

aneventorasituationtobegratefulfor,usuallybecauseitstopssthunpleasant幸運(yùn)；恩惠?

It’samercyshewasn’tseriouslyhurt.幸運(yùn)的是她傷勢不重。IDIOMS1.atthemercyof任……處置；對……無能為力；任由……擺布?

I’mnotgoingtoputmyselfatthemercyofthebank.我不想任由銀行擺布。?

Wewereatthemercyoftheweather.我們受制于天氣。2.leavesb/sthtothemercy/merciesofsb/sth聽任某人可能受到虐待（而無能為力）3.throwyourselfonsb’smercy指望某人能善待（或?qū)捤。┠鉷ossession1.n.

thestateofhavingorowningsth具有；擁有?

Themanuscriptisjustoneofthetreasuresintheirpossession.

這部手稿只是他們的珍藏之一。?

Thegangwascaughtinpossessionofstolengoods.這伙人被逮住，人贓俱獲。?

Thepossessionofapassportisessentialforforeigntravel.

出國旅行必須持有護(hù)照。?

Onherfather’sdeath,shecameintopossessionof(=received)avastfortune.

她父親死后，她繼承了一大筆財產(chǎn)。possession2.n.

[C,usuallypl.]somethingthatyouownorhavewithyouataparticulartime個人財產(chǎn)；私人物品?

personalpossessions私人物品?

Theringisoneofhermosttreasured