Unit7ListeningSpeaking课件沪教版八年级英语下册

Let’sreviewThink：Whatproblemsdoastronautsfaceduringspacemissions?Shareyourideaswithyourpartner.Examples:①Astronautsmuststicktheirsleepingbagstothewall.②Ifastronautsdonotexerciseregularly,theywillgetveryweak.③...

Pre-listeningLookatthepictureandthink:①Whatcanyouseeinthepicture？②Whatproblemdoyouthinkthislessonwillbeabout?Isitabigproblem?Spacejunk.Ithinkitcouldbeabigproblembecause...Youwilllistentoalecture

aboutspacejunk.Canyouguesswhichtopicsthespeakerwillmention?Whatisspacejunk?​Wheredoesitcomefrom?​Whyisitabigproblem?​Whatcanwedoaboutit?​While-listening1.Listenforthegist—checkyourpredictionsTickthethingsmentionedinthelecture.Whatisspacejunk?​

Wheredoesitcomefrom?​

Whyisitabigproblem?​

Whatcanwedoaboutit?​

√√√Themainideaofthelecture:Whatspacejunkisandwhyitisabigproblemtous.While-listening2.Matchthesectionswithkeywords—buildthestructure①

Whatisspacejunk?​​②

Whattypesofspacejunkarethere?​③Whyisspacejunkabigproblem?​A.ThedangersofspacejunkB.ThedefinitionofspacejunkC.Examplesofspacejunk

While-listeningDetailedlisteningTip:Readthequestionsbeforeyoulisten.Payattentiontokeywordsfromthequestions(e.g.gloves,satellites,rockets)whileyoulistentothelecture.While-listeningDetailedlistening(Activity3,P104):Tip:Readthequestionsbeforeyoulisten.Trytoconnectthequestionstothetopicsofthedifferentpartsofthelecture.Payattentiontokeywordsfromthequestions(e.g.gloves,satellites,rockets)whileyoulistentothelecture.A&BCC√√√√√√Whichpartdothesequestionsreferto?DefinitionTypesofspacejunkDangersofspacejunkSpacejunkDefinition__________inspace,(e.g.partsofold__________)Typesofspacejunk__________thatstoppedworkingandcouldn’tbebroughtbackthingsdroppedby__________duringthespacewalk(e.g.cameras,__________,toolbags)Dangersofspacejunkcan__________aspacecraftorsatellitecreatesmorejunkin__________canmakespacemissionsvery__________,andevenmakespacetravel__________While-listeningDetailedlistening:Listenagainandcompletethenotes.unwantedobjectsrocketssatellitesastronautsglovesdestroyorbitdangerousimpossiblePost-listening(Readaudioscript)Therearetensofthousandsofman-madeobjectsinorbitaroundtheEarth.Manyofthemareusefulthings,likespacestationsandweathersatellites.However,peoplehaveleftlotsofunwantedobjectsinspacetoo,suchaspartsofoldrockets.Theseobjectsareknownasspacejunk.Sincethe1950s,peoplehavesentover10,000satellitesintospace.Manyofthesesatelliteshavestoppedworking,buttheyarestillinorbitbecauseitistooexpensivetobringthembacktotheEarth.Astronautshavealsodroppedthingsduringtheirspacewalks,suchascameras,glovesandtoolbags.TheseobjectscontinuetoorbittheEarthasspacejunk.Spacejunkisabigproblem,anditisgettingworse.Everyyear,wesendmoreandmorethingsintoorbit,andthismeansmoreandmorespacejunkinorbittoo.Mostpiecesofspacejunkareverysmall,buttheycanstillbeverydangerous.Objectsinorbit,suchassatellitesandspacecraft,arealltravellingvery,veryfast.Thismeansasmallpieceofspacejunkcandestroyaspacecraftorsatellite.Whenthishappens,thespacecraftorsatelliteisbrokenupintohundredsofpieces,andtherewillbeevenmorespacejunkinorbit.Scientistsareveryworriedaboutspacejunkbecauseitcanmakespacemissionsverydangerous.Ifthereistoomuchspacejunkinorbit,itwillbecomeimpossibletotravelintospace.Countriesaroundtheworldneedtoworktogethertosolvethisdifficultproblem.Whatcanwedotosolvetheproblemofspacejunk?Post-listeningPairworkCansatellitesberecycled?Aretherewaystomakethiseasier?Shouldtherebelawsaboutcleaningupspacejunk?Canastronautsdoanythingtoavoiddroppingthingsduringspacewalks?Canwebuildmachinesthatcancollectspacejunk?Comeupwithsolutionstotheproblem.Post-listeningGiveasummaryofthelecture.Usethenotesbelowtohelpyou.SolutionsBuildmachinesthatcancollectspacejunk,...Look&answerWhatcanyouseeinthepicture?Whereisit?DoyouthinkitwillbepossibleforhumanstovisitMars?DoyouthinkChineseastronautswilllandonMarsinthefuture?WillhumansonedayliveonMars?Whyorwhynot?Listentoadialogue.Whataretheytalkingabout?Read

the

dialoguewithyourpartner.Moreexamplesofexpressingpossibilityandimpossibility.Let’sdebate!WillitbepossibleforhumanstoliveonMarsinthefuture?Step1Pickyourside!TeamA(WeCANliveonMarsinthefuture)vsTeamB(WeCAN’TliveonMarsinthefuture)Let’sdebate!Step2Inyourteam,lookatthefactsbelow.Discusswhichofthesefactssupportyouropinion.Thenfindmorefacts.→TeamA:YouthinkthathumanswillbeabletoliveonMarsinthefuture.→TeamB:Youdon’tthinkhumanswillbeabletoliveonMarsinthefuture.FactsthatsupportTeamB’sopinion.FactsthatsupportTeamA’sopinion.Canyouthinkofmoreevidence（证据）tosupportyouropinion?Discussandwritedown2–3strongpointsforyourteam.Let’sdebate!Stateyouropinion.Providefactsandreasonsthatsupportyourargument.Youcanusephraseslike“Itislikelythat…”or“Itisunlikelythat…”toshowthatsomethingis/isn’tpossible.Listentotheotherteam’sresponse.Payattentiontotheirargumentsandthinkofwaystorespond.Continuedebatinguntilthetimeisup.Myopinion:Humanswill/willnotbeabletoliveonMars.Reason1:__________Example1:__________Iftheotherteam________,wewillsay________________.Self-assessment评价内容评分（1–5）1.我能记录太空垃圾的相关信息。123452.我能用已学知识讨论解决太空垃圾问题的相关举措。123453.我能正确运用表达“可能性与不可能性”的相关句式。123454.我能与同伴就未来能否移民火星展开辩论。12345Homework基础作业模仿录音，流利朗读课本第107页的例句和对话。拓展作业就移民火星可能存在的某一问题，撰写一篇短文说明解决方案，要求至少使用两个课堂所学句型，如“It’slikelythat...

”，“Thereisagoodchancethat...

”。上网查找“天问”火星探测任务的相关内容，并记录以下信息：Time→Whathappened→Whyit’simportant，为Project做好准备。spacejunk/9speIsdZVNk/n.太空垃圾

ThereisalotofspacejunkfloatinginEarth’sorbit.lecture/9lektSR(r)/n.

讲座；演讲

Theprofessorgavealectureonspaceexploration.satellite/9sætRlaIt/n.

人造卫星

Wecansometimesseeasatelliteinthenightsky.spacecraft/9speIskrA:ft/n.航天器；宇宙飞船

Thespacecraftissettolaunchforadeep-spacemission.destroy/dI9strOI/v.摧毁

Thebigfirewilldestroytheoldhouse.mission/9mISn/n.任务；使命

Thespacecraft’smissionistostudyplanetsthatarefaraway.unwanted/Vn9wBntId/adj