Unit1OurlivingplanetReadingTheoceandeep课件高中英语译林版（2020）选修第一册2

WELCOMEWhatdidyouseeinthevideoclip?Manyuniquelifeformsinthedeepocean.Theoceanisfullofmagicandmystery.Theoceanistheworld’slargesthabitat,whichishometocountlessspecies.TheOceanDeepexploremoreabouttheocean&usespatialorder(空间顺序）todescribedifferentzonesWewilltogetherfocusonthecurrentoceanicsituation&raiseawarenessofmarineenvironmentalprotectionIntroductionPara1MainbodyParas2-4MainbodyParas2-4ConclusionPara5ReadingforthestructureReadpara2-4forunderstandingReadpara2-4asquicklyaspossibletoidentifythedifferentzonesoftheocean.theopenzonethetwilightzonethedeepoceanTheopenocean(透光区)Thetwilightzone(暮光区)Thedeepocean(深海区)ReadforstructureReadthedocumentarytranscriptandcompletethechartbelow.Para.3:Para.2:Para.4:Para.5:Para.1:

Weshouldexploretheworld________theoceanfor______________and___________________________.IntroductionMainbodyConclusionMuchoftheknown__________livesin____________,and________________and_______

livein_______________._____________ishometo____________________ontheEarth._______and______________livearound________________and_________________canbefoundontheoceanfloor.Morewondersbeneaththesurfaceoftheoceanawaitus.beneathnewlifeformsunusualgeologicalformationsmarinelifetheopenoceansmallfilterfeedershuntersthetwilightzoneThedeepoceanthestrangestcreaturesShrimpsotherorganismshydrothermalventstheMarianaTrenchTheMarianaTrench(马里亚纳海沟)hydrothermalventsHydrothermalventsareplaceswheresuper-heatedwatereruptsoutoftheseafloorusuallywheretectonicplates

(板块)meet.Thewatercanexceedtemperaturesof398.8℃,providingpocketsofheat(一点儿热)

inanotherwisecold,deep-seaenvironment.Readpara2forthinkingEvolution,itseems,helpsboththehunterandthehuntedinequalmeasure!thehunterthehuntedHowdoyouunderstandthelastsentence?thinbodytoavoidbeingseenandeatenbackward-curvingandsharpteethtocatchtheprey(被捕食者)moreeasilytogetawayfromthehunterReadpara3forthinkingTheycannotrelysolelyontheireyesighttosurviveandhaveevolved_____________________________________.fascinatingsurvivalcharacteristicsHowdoyouunderstandthelastsentence?ThefishinthedeepoceanareamongthestrangestcreaturesontheEarth,manyofwhichhaveyettobeproperlystudied.Readpara4forthinkingWhydoestheauthormentionMountQomolangmawhendescribingtheChallengerDeep?highlighthowdeeptheChallengerDeepisvisualizeitsdepthReadforwritingtechniquesHowisparagraph5relatedtoparagraph1?para5:......whoknowswhatwondersstillawaitusinthefuture?para1:......whydon'twedivetothebottomofareallydeepoceanandtakealong,closelookbeneaththewaves?rhetoricalquestions设问；反问

EchoCriticalthinking1.Whathappenstotheocean?2.Whathumanactivitiescauseit?Theoceanisheavilypolluted.pouringwasteorpollutedwaterintoitthrowingtoomuchplasticgarbageoverfishingillegalkillinggreenhousegasesemissionsCriticalthinking3.Whataresuggestionsontheoceanprotection?switchingtoagreenerlifestylereducingcarbonfootprintstoppingthrowingplasticgarbageraisingawarenessofmarineconservation......Ourocean,ourhome公益宣传（主题演讲）·宣传海洋知识（海洋分层）·警醒当前问题（海洋污染）·呼吁公众行动（保护海洋）Ladiesandgentlemen,TodayIfeelhonoredtobeheremakingaspeechwiththethemeOurocean,ourhome.Priortomyspeech,I’dliketoaskyouaquestion.Areyoufamiliarwithocean?________________________________Heartbreakingly,_______________________________________________________________________________Whydon'twe_________________________________________________________________________________Ladiesandgentlemen,TodayIfeelhonoredtobeheremakingaspeechwiththethemeOurocean,ourhome.

Heartbreakingly,humanactivitiesareputtingtheoceanatrisk.Moreandmorewastewaterarebeingpouredintotheocean,alongwithcountlessplastics.What’sworse,overfishingandillegalkillinghavemadethemarinecreaturesclosertoextinction.Whatcanwedotoprotecttheoceans?It’shightimethatwetookactiontoprotectouroceans.Switchingtoagreenerlifestyleisthefirststeptowardsensuringsustainabledevelopmentfortheocean.Besides,adoptingmeasurestoridtheoceanofplasticgarbageshouldbeaglobalpriority.Ontopofthat,westudentsshouldtakeadvantageofeveryopportunitytoraisepublicawarenessofmarineconservation.Together,wecanmakeadifferenceandensurethehealthofourocea