Unit+5+Into+the+Unknown+Developing+ideas+Reading高中英语外研版（2019）选择性必修第四册

SB4U5DivingDeep(Developingideas)LeadinWatchavideoclipofBluePlanetIIandthinkabouttheoceanexplorationyouknow.Pre-readingLookatthepictureandanswerthequestions.Dofurtherresearchifnecessary.Whatdifferentzonesarethereintheocean?Whichpartsoftheoceandoyouthinkhavebeenexplored?Whatdoyouknowaboutthedeepestpartoftheocean?ThedifferentzonesintheoceanareSunlightZone(阳光地带),TwilightZone(阴影区),MidnightZone(午夜区)andAbyssalZone(深海层).200m1000m6000m11000m0m≈20℃5-10℃0-4℃<0℃Weareenteringanewageofoceanicdiscovery.WehavelittleknowledgeofEarth’sseabed.Manyarchaeologicalfindsaremadeinshallowwaters.Thereareextraordinarycreaturesinthedeepsea.Theoceansareavaluablesourceofnaturalresources.While-readingReadformainideaSkimthepassageandmatchthemainidea.Para.5Para.1Para.2Para.3Para.4DivingdeepPara.1:Introducethetopic.Para.2-4:Ocean__________Para.2:the_______ofNeapolisPara.3:amazing_____________ discoveriesPara.5:_____________isenteringanewageof oceanicdiscovery.HumankindruinsPara.4:__________ofnatural resourcesbiologicaldiscoveryexplorationWhile-readingReadforstructureWhile-readingReadfordetailsScanthepassageandcompletethediagram.deepseaArchaeologicalshallowwatersvastdepthstheruinsofNeάpolisBiologicaltheplanet'sfishthecapacityforlifeonourplanetbone-whitecoralthebarreleyelifetobefoundevenaroundthedeep-seavolcanicopeningstheseabeddeep-seadrilling“fireice”China'sunderwatervesselsWhile-readingReadforwritingskillsWhatwritingskillsareusedinthepassage?Statistics&examplesThediscoursemarkers(语篇标记)While-readingstatisticsWhile-readingExamplesExamplesinpara.2wholecityburiedbeneaththewavesRomancityofNeapolislocation:___________________time:______________cause:______________offthecoastofTunisiatsunamithe4thcenturyWhile-readingExamplesExamplesinpara.3200metresdarkzone6000metresdeep8000metresName:_____________Age:_____________Name:_____________Features:_____________barreleyetransparentheadEyescanlookupwardslifetobefoundevenaroundthedeepseavocalnicopenings

bone-whitecoral4000yearsoldWhile-readingExamplesExamplesinpara.4China’sachievements:Newnaturalresource:__________Underwatervessels:___________________________fireiceJiaolong&ShenhaiYongshiTip:Theuseofstatisticsandexamplesmakethepassagemoreconvincing.While-readingdiscoursemarkersTip:

Thesemarkersfunctionlikeroadsigns,helpingyouconnectideasandunderstandthewriter'sattitudeandopinions.(P77)Post-readingThink&ShareWhatcommonmessagedothetworeadingpassagesinthisunitconvey?Howdotheyeachbuilduponthisidea?Bothpassagesconveythemessagethathumanshavethedesireandmeanstoexploretheunknown.Thefirstpassagedoesthisbylookingatourfascinationwithhistory’sgreatestmysteries,whilethesecondpassagelooksatpioneeringexplorationofEarth'soceans.Post-readingGroupworkWatch

thevideoclipof

programTidesofChangeandfinishthefollowingtask.Post-readingGroupwork“Creatingabetterlivelihood”isshowninthevideoclip,whichisalsooneofthepurposesofChina’soceanexploration.Pleaseintroducetheinfluenceofoceanexplorationonpeople’sdailylifefortheaudienceaccordingtothediagrambelow.(P77)Theairwebreathe:Theoceanproducesoverhalfoftheworld’soxygenandabsorbs50timesmorecarbondioxidethanouratmosphere.Climateregulation:Covering70percentoftheEarth’ssurface,theoceantransportsheatfromtheequatortothepoles,regulatingourclimateandweatherpatterns.Food:Theoceanprovidesmorethanjustseafood;ingredientsfromtheseaarefoundinsurprisingfoodssuchaspeanutbutterandsoymilk.Medicine:Manymedicinalproductscomefromtheocean,includingingre