沪教牛津版英语八年级下册U7 Listening Speaking（版二）

Section1Listening&Speaking主题范畴：人与自然；人与社会主题群：宇宙探索；历史、社会与文化；科学与技术子主题：地球与宇宙探秘，航天事业发展；对世界、国家、人民和社会进步有突出贡献的人物；科学技术与工程，人类发明与创新。EatinginspaceManytypesoffood:fruit,nuts,chicken,

,

…Differentteas,juicesandsoups.Eatingcanbea

inspace!WorkinginspaceVerybusyeveryday.Nogravity—everything

!Simpletasksare

andtake

todo.SleepinginspaceSleepinasleepingbaginasmallroom.

tothewalltostopfloatingandhittingthings!ExercisinginspaceExerciseisimportanteveryday.It

muscleloss.Asmallgymhelpsus

.Equipmentisvery

Earth.beefseafoodpleasurefloatsharderlongerStickthebagslowsdownkeepfitdifferentfromReviewWhatisthevideoabout?Lead-inSpacejunkWhatdoyouknowaboutspacejunk？Pre-listeningSpacejunkIstherelotsofspacejunkinspace?Isspacejunkdangerousforpeople?Aretheremanytypesofspacejunk?Let’slistentothelectureandchecktheanswers!1.Typesofspacejunk. 2.Usageofspacejunk. 3.Dangersofspacejunk​. 4.Definitionofspacejunk.

√While-listeningWhichdidyoulistentointhelecture？√√Canyouputthemintherightorder？DefinitionTypesDangers(1)Whichofthefollowingcanbespacejunk?aastronauts'gloves bbrokensatellites cpartsofrockets(2)Whycantinypiecesofspacejunkdestroyspacecraftandsatellites?aBecausespacecraftandsatellitestravelveryfast.bBecausemostpiecesofspacejunkareman-madeobjects.cBecausetheamountofspacejunkisgrowingfast.(3)Whatproblemscanspacejunkcause?aItmayfallbacktotheEarthandhurtpeople.bItmaymakespacemissionsdangerous.cItmayhitsatellitesandspacecraftinorbit.Listenagainandchoosethecorrectanswers.While-listeningKeywordsareveryhelpful！SpacejunkDefinition________________inspace,(e.g.partsofold__________)Typesofspacejunk__________thatstoppedworkingandcouldn’tbebroughtbackthingsdroppedby__________duringthespacewalk(e.g.cameras,__________,toolbags)Dangersofspacejunkcan__________aspacecraftorsatellitecreatesmorejunkin__________canmakespacemissionsvery__________,andevenmakespacetravel__________Listenagainandcompletethenotes.unwantedobjectsrocketssatellitesastronautsglovesdestroyorbitdangerousimpossibleWhile-listeningTherearetensofthousandsofman-madeobjectsinorbitaroundtheEarth.Manyofthemareusefulthings,likespacestationsandweathersatellites.However,peoplehaveleftlotsofunwantedobjectsinspacetoo,suchaspartsofoldrockets.Theseobjectsareknownasspacejunk.Sincethe1950s,peoplehavesentover10,000satellitesintospace.Manyofthesesatelliteshavestoppedworking,buttheyarestillinorbitbecauseitistooexpensivetobringthembacktotheEarth.Astronautshavealsodroppedthingsduringtheirspacewalks,suchascameras,glovesandtoolbags.TheseobjectscontinuetoorbittheEarthasspacejunk.Spacejunkisabigproblem,anditisgettingworse.Everyyear,wesendmoreandmorethingsintoorbit,andthismeansmoreandmorespacejunkinorbittoo.Mostpiecesofspacejunkareverysmall,buttheycanstillbeverydangerous.Objectsinorbit,suchassatellitesandspacecrafts,aretravellingvery,veryfast.Thismeansasmallpieceofspacejunkcandestroyaspacecraftorsatellite.Whenthishappens,thespacecraftorsatelliteisbrokenupintohundredsofpieces,andtherewillbeevenmorespacejunkinorbit.Scientistsareveryworriedaboutspacejunkbecauseitcanmakespacemissionsverydangerous.Ifthereistoomuchspacejunkinorbit,itwillbecomeimpossibletotravelintospace.Countriesaroundtheworldneedtoworktogethertosolvethisdifficultproblem.Whatisspacejunk?Post-listeningWhatcanwedotosolvetheproblemofspacejunk?Post-listening(1)Cansatellitesberecycled?Aretherewaystomakethiseasier?(2)Shouldtherebelawsaboutcleaningupspacejunk?(3)Canastronautsdoanythingtoavoiddroppingthingsduringspacewalks?(4)Canwebuildmachinesthatcancollectspacejunk?Discussthequestionswithyourpartner.DoyouknowaboutChina’sexplorationofMars?Whatisthevideoabout?Lead-inChina'sexplorationofMarsJuly23,2020●ChinalauncheditsfirstindependentMarsmission,Tianwen-1.May15,2021●TheZhurongrover(火星探测器)landedonMars.Chinabecamethethirdcountrytodothis.2022●ZhurongworkedonMarsandsentbackdata(资料).2025●●2023DatafromZhurongshowedthatMarshadasaltyandwateryworldabout400,000yearsago.ScientistsuseddatafromZhurongandfoundstrongevidencethatanancientoceanonceexistedonMars.●...Doyouthinkit’spossibleforhumanstovisitMarsinthefuture?S1:I'mgoingtovisitMars.S2:That'simpossible!Youmustbejoking.S1:No,I'mnotjoking.It'llbepossibletotraveltoMarsinthenearfuture!S2:Sayswho?S1:Thescientists.Theysaythatwe'vemadegreatprogressinMarsexploration.Soit'sverylikelythatwe'llbeabletoflytherebythe2050s.S2:Istillthinkit'sunlikely.TwostudentsaretalkingaboutgoingtoMars.Readthedialogueandanswerthequestions.1.Whatarethetwostudents’opinionsonthepossibilityofvisit