Unit3SeaExplorationUsingLanguage(II)課件-高二英語人教版選擇性

Unit3Period4UsingLanguage(Ⅱ)Expressyouropinionsonseaexploration1.通過閱讀兩篇議論短文，了解海洋探索對于人類的利弊，能夠樹立正確的海洋觀；2.能掌握議論文的問題結(jié)構(gòu)和語言特征，完成議論文寫作。新課導入課堂學習Pre-readingShouldtheseabeexplored?Readthetwotextsandanswerthequestions.SkimmingWhatisthetexttypeofthetwopassages?Whatarethethreepartsinargumentativeessay?Argumentativeessay.Argument,evidence,restatement/recommendation/acalltoaction.Scanning1Readthetwotextsbelowandfindtheargumentsandevidenceinthem.argument

evidenceText1Explorationcausespollution.DeepwaterHorizonoilspillPlasticpollutionMiningforresourcesisdamaging.IthurtstheArctic.Burningfossilfuelsaddstoclimatechange.Overfishingisanissue.Whalesanddolphinsarehunted.Banned,butsomecountriesstilldoingit.Text2argument

evidenceSeaexplorationisimportantforourfuture.Scientificresearchshipscanhelpaddressimportantissueslikeclimatechange.Understandingmoreabouttheseawillalsohelpusmanageitsresourcesbetter.Newmedicines,foodresourcesandenergy.Predicteventssuchasearthquakes.Weneednewresourcesforfuturedevelopment.Vastamountsofresourcesmaybeundertheseaandice.Lookatthetwochartsbelowanddecidewhichonesupportswhichtext.2Text2Text1Ingroups,discussthefollowingquestionsandtakenotes.31.Whatisyouropinionaboutseaexploration?Doyouagreewithoneargumentmorethantheother?2.Hasyouropinionchangedafterreadingthetwotexts?Whyorwhynot?Ithinkseaexplorationisawonderfulidea,becauseeveniftherearenoimmediaterewardsforit,toexploreandfindoutmoreaboutourworldisalwaysagoodthing.Yes,myopinionhaschanged.BeforereadingText1,Ididnotknowthatseaexplorationcouldaddtoseapollution,viadeepseadrillingforexample.3.Arethereanyotheraspectsofseaexplorationnotmentionedthatyouthinkareimportant?Wedonotknowwhatwedon’tknow;Weneedtoexploretheoceansothatwecanbetterunderstandissuessuchasacidificationwhichleadstoseawatertobecomemoreacidic,andhowtofighttheseproblems;Studyingtheoceancausesthecreationofnewtechnologiesthatcanhelpusinotherareas.Basedonyournote,writeanargumentativeessayonseaexploration,expressingyouropinionswithsupportingfacts.41)Thefollowingquestionsmayhelpyou.Whatisthepurposeofseaexploration?Howdoesseaexplorationhelpustoprotectthesea?Howdoesseaexplorationcausedamagetothesea?Isthereagoodbalancebetweenprotectionandexploitation?2)UsethePEELmethodtohelpstructureyourargument.PointEvidenceExplanationLinkWhatpointdoyouwanttomake?Whatfactsandexamplescanyoufindtosupportyourpoint?Howreliablearethesources?Explainhowthefactssupportyouropinionandshowotheropinionstobeincorrect.Connectthispointtothenextpoint,orbacktothemainpointoftheessayorparagraph.3)Writeyourdraftandexchangeitwithapartner.Usethechecklisttohelpeachotherrevisethedrafts.4)Getyourfeedbackandreviseyourdraft.YesNoIsthepointclearenough?Arethereanyexamplesorfactsthatsupporttheargumentstrongly?Isthereanyexplanationonhowtheevidencesupportstheopinion?Aretheresomeconnectiveslinkingonepointtoanother?Eventhoughtheoceansmakeupabout70%oftheearth’ssurface,morethan80%oftheoceansremainunexplored.Whilesomepeoplesaythatweshouldnotexploretheoceans,theirreasoningisnotverysound.Exploringisnotthesameasexploiting.Whenweexploreaplace,wegojusttoseeandunderstandwhatisthere.Weshouldexploretheocean,firstandforemost,becausewedonotknowwhatwedonotknow.Wethoughtweknewmanyabouttheocean,butwewerewrong.Therecouldbelifeformsintheocean,forexample,thatfitnoneoftheneatcategorieswehaveforlifewhilewehavenocluethattheyevenexist.Thisbringsupthesecondpoint.Wealreadyknowmanythingsabouttheocean,butweneedtolearnmore.Agoodexampleisoceanacidification.Weknowthatitiscausingcoraltodie.Weknowthatusinglessfossilfuelwouldcausetheprocesstoslowdown.However,weneedtolearnmoretofindouthowtostopit.Weneedmoreresearchtoseewhatisgoingon,andtocomeupwithplansandsolutions.Finally,todothisresearch,wehavetoenteranextremeenvironmentnotveryfriendlytohumans.Thisrequiresthedevelopmentofnewtechnologiesthatcanalsobenefitusinotherareas.Forexample,inmanyways,thedeepoceanresemblesouterspace.Thetechnologiescanbenefiteachother.Foranotherinstance,thetechnologyofamechanicalarmtocollectsampleswithhasbeenusedinfactoriesanddevelopmentofartificiallimbsforhumans.Allinall,therearemanygoodreasonstoexploretheoceans.Ifwecareaboutscience,aboutprotectingouroceans,andaboutdevelopingnewtechnologies,weneedtodoallwecantosupportoceanexploration.Languagepoints1.Whenpeopletalkofexploringtheseamore,theyusuallymeanexploitingit.當人們談?wù)摳嗟靥剿骱Ｑ髸r，他們通常意味著開發(fā)它。exploitvt.開發(fā)；利用；剝削※exploitsth.todosth.

利用某事做某事※exploitsb.withsth.用......剝削某人※exploitationn.開發(fā)；利用；剝削※explorern.開發(fā)者；剝削者Thecontrolled____________(exploit)ofsearesourcescanprotectmanyspecies.exploitation2.Althoughthiswasbannedin1982,somecountriesarestill“murdering”theseintelligentcreatureswithoutmercy.盡管這在1982年被禁止,一些國家仍然毫不留情地“謀殺”這些聰明的動物。mercyn.仁慈;寬恕;恩惠showmercytosb/havemercyonsb

憐憫某人atthemercyof...

任由……擺布；忍受……控制It'samercythat...……真是萬幸。withoutmercy

毫不留情mercifuladj.

仁慈的；寬大的bemercifulto/towardssb

對某人仁慈3.Theseaishometolife,nothumanbeings’possessions.海洋是生命的家園，而不是人類的私產(chǎn)。possessionn.個人財產(chǎn)；擁有；控制beinpossessionof擁有……（主語為人）beinthepossessionof(sb)=beinone’spossession（某物）被（某人）擁有comeintoone’spossession為某人所擁有take/comeintopossessionof占有；擁有possessv.占有，擁有；控制，支配。1)這伙人被逮住了，人贓俱獲。Thegangwascaught___________________stolen

goods.2)離開賓館時請記得隨身攜帶好你的私人物品。Pleaseremembertotakeallyour____________________withyouwhenyouleavethehotel.inpossessionof

personalpossessions

4.Loggingnewspecieswillimproveourunderstandingoflifeontheearth.記錄新物種將提高我們對地球上生命的了解。logvt.把……載入正式記錄;記錄

n.正式記錄;日志;原木login/on注冊，登記login/onto

登錄logoff/out

注銷；結(jié)束5.Althoughthiswasbannedin1982,somecountriesarestill“murdering”theseintelligentcreatureswithoutmercy.盡管這在1982年被禁止,一些國家仍然毫不留情地“謀殺”這些聰明的動物。本句是一個復合句。somecountriesare...是主句;although=though是從屬連詞,意為“雖然……;盡管……”,引導讓步狀語從句。Althoughthesunwasshining,itwasn’tverywarm.盡管太陽高照,天卻不是很暖和。

though/although的用法(1)用作連詞表示“雖然”,兩者大致同義,可換用,只是although比t