Unit4SectionA2a-2d课件人教版英语八年级下册-1

UNIT4TheWondersofNatureSectionA2a-2dKnowledge&VocabularyMasterkeywords:deepsea,submersible,oceanfloor,Fendouzhe,rubbishetc.Knowkeydepthfacts:Fendouzhe’sdive,thestartofthedeepsea,theTitanic’sdepth,andthedeepestwhaledive.01ListeningSkillsPredictconversationtopicsbeforelistening.Identifydiscussedtopicsandcompletefill-in-the-blankswithkeydetailsfromtheaudio.02LearningObjectivesSpeaking&ThinkingAskandanswerquestionsaboutthedeepseawithapartner.Understandtheimportanceofprotectingthedeepocean.03Hereisadeepseamysteriousbox.Let’sopenittoseewhat’sinside?✨Someanimalsherecreatetheirownlight.🗑️Thereisrubbishevenhere.🏔️YoucouldhideMountEveresthere.LeadinWhatdothesecluestellusaboutthedeepsea?darkbeingpollutedpressurestrangefishsubmarinesLeadinThedeepseaisdarkerandcolderaswegodown.Howdeeptheoceancanbe?“Doyoubelieveit?”TheMarianaTrenchisdeeperthanMountEverestistall.2aWhatdoyouknowaboutthedeepsea?Trytolabelthedepthsinthepicturewiththeinformationontheleft.B.DepthatwhichthedeepseabeginsC.DepthatwhichtheTitanicrestsD.DeepestdiveofawhaleA.DepthFendouzhereachedFendouzheisChina'smanneddeep-seasubmersible,whichreachedadepththatsetanewrecordforChina'sdeep-seadiving.Somedeep-seaanimalscreatetheirownlight–it’slikehavingaflashlightinthedark!Pre-listeningRubbishhasbeenfoundeveninthedeepestpartsoftheocean.Let’spredict.wherethedeepseabeginswhypeopleareresearchingthedeepseawhichChinesevesseldiveddeeperthanotherswhatdeep-seaanimalsarelikehoweveryoneshouldprotectthedeepseaWhichonesdoyouthinkwillbementionedinthefollowinglisteningA.Tofindmorefishforfood.B.Outofcuriosityandbecausewedon'tknowenoughabouttheoceanfloor.C.Tobuildunderwatercities.1.Whyaremanycountriesresearchingthedeepsea?Whatistrueaboutmanydeep-seaanimals?A.Theyareallsmallandcolorful.B.Someareblindbutcanstill"see,"andsomemaketheirownlight.C.Theyalllivenearthesurfaceoftheocean.WhatsurprisingfactaboutthedeepseadoesMrJonesmention?A.Therearenolivingthingsat11,000metersdeep.B.Thereisrubbishevenat11,000metersdeep.C.China'sFendouzheistheonlysubmersibletoreachthedeepsea.Listentotheconversationandthinkaboutthequestionsbelow.Listenforquestionwords:where,why,which,what,howListenfornames:Fenoduzhe(aChinesevessel)Listenfornumbers:depths,yearsListeningtipsMsGao:Thankyouforthewonderfultalk,MrJones.Now,doesanyonehaveanyquestions?Emma:Ido!Whyaresomanycountries____________thedeepsea?MrJones:Well,_________isonereason.Wedon'tknowenoughaboutthe_________.FuXing:Irememberthatin2020,China's___________diveddeeperintotheMarianaTrenchthanmanyothervesselsintheworldandfilmedit.ButIdidn'tseeanydeep-seaanimals.Whataretheylike?MrJones:Well,manydeep-seaanimalsarelargeand________.Someanimalsare_______,buttheycan"see"aswellasothers.Someevencreatetheirown______!Peter:Cool!Arethereanyothersurprisingfactsaboutthedeepsea?MrJones:Didyouknowthatthere's_________evenat__________metresdeep?Thatshockedmanypeople.MsGao:That'sterrible!Weshoulddosomethingaboutit.MrJones:You'reright!researchingcuriosityoceanfloorFendouzheblindlightrubbishListentotheconversationagainandfillintheblanksunusual11,000☐wherethedeepseabegins☐whypeopleareresearchingthedeepsea☐whichChinesevesseldiveddeeperinthewaterthanmanyothers☐whatdeep-seaanimalsarelike☐howeveryoneshouldprotectthedeepsea2bAclassisaskingadeep-searesearchersomequestionsafterhistalk.Listenandtickthetopicstheydiscuss.Let’schecktheanswer2cListenagain.Completethesentenceswiththefactsfromtheconversation.Peoplestilldon'tknowmuchaboutthe______.In______,China'sFendouzhedivedintothedeepseaand______it.Manydeep-seaanimalsare______and______.Someanimalshaveunusualabilities.Someare______butcan"______".Someevencreatetheirown______!Thereisrubbishevenat______metresdeep.oceanfloor.2020filmedlargeunusual.blindlight!"see".11,000Whatcanyoulearnfromthispassage?1.WhatdoEmma,FuXingandPeter’squestionstellusaboutaskinggoodquestions?Goodquestionscomefromlisteningcarefullyandwantingtoknowmore.TheyoftenstartwithWhy,What,How.2.WhydoesMrJonesmention“rubbishat11,000metresdeep”?Whatdoesthistellusaboutthedeepsea?Thedeepseaisnotonlymysteriousandamazing–itisalsovulnerable.Weshouldcareaboutiteventhoughit’sfaraway.Whatcanyoulearnfromthispassage?Whyisthedeepseaimportant?

Whatthreatsdoesitface?3.Whatcanwedo?biodiversity,climate,unknownresourcesrubbish,mining,pollutionreduceplastic,supportoceanprotectionSummary:WhatkindoflearnersareEmma,FuXingandPeter?StudentWhattheydoWhatwecanlearnEmmaAsksaboutreasonsBecuriousabout

whyFuXingShareswhatheknows,thenasksformoreConnect

oldandnewknowledgePeterAsksformoresurprisingfactsAlwayswantto

godeeper2dReadthequestionsandthinkofmoreyouwouldliketoaskthedeep-searesearcher.Researchtheanswers.Thenaskandanswerthequestionswithapartner.Whatisthelargestsharkinthedeepsea?Whyisthedeepseaimportanttous?Whatisthebottomofthedeepsealike?Whatothervesselsdivedtothebottomoftheocean?A:Whatisthelargestsharkinthedeepsea?B:Thelargestsharkthateverlivedwasthemegalodon.Itwasabout20metreslong.Butitisextinctnow.A:Whatisthelargestsharkinthedeepsea?B:Thelargestsharkalivetodayisthewhaleshark.Butitdoesn'tliveinthedeepsea.Inthedeepsea,sharksareusuallysmaller,likethefrilledshark.A:Whatisthebottomofthedeepsealike?A:Whatothervesselsdivedtothebottomoftheocean?.A:Whyisthedeepseaimportanttous?B:It'sverydarkandcold.Thebottomiscoveredwithsoftmud.Therearemountains,volcanoes,anddeeptrenches.B:In1960,theTriestewenttothebottomoftheMarianaTrench.