新一代大学英语（第二版）视听说教程4（思政智慧版）课件 B4U5 Journey into space

CONTENTS1iPrepare2iExplore13iExplore24iProduce5Pronunciation6FurtherlisteningUNIT5CONTENTSWarmingupLearningobjectiveUNIT5Sinceancienttimes,humanityhasgazedatthestarswithwonderandtransformedmythsintoscienceanddreamsintovoyagesbeyondtheEarth.Today,thiscuriosityandspiritofexplorationdriveusdeeperintothecosmos,linkingage-oldimaginationwithmodernbreakthroughs.Thisunitinvitesyoutoreflect:Whyexplorespace?Toensurehumanity’sfuture,pushknowledgeboundaries,orunderstandourplanet?Throughlunarlandings,recentmissions,andfuturepossibilities,we’llseehowspaceexplorationadvancestechnologyandtransformshowweviewourselvesandourplaceintheuniverse.Comediscovernotjustwherewe’regoing–butwhyitmatters.UNIT5Uponcompletionofthisunit,youwillbeableto:•describeprogressmadeinspaceexploration•identifykeyinformationwhilelistening•integratethepronunciationskillsthatyouhavelearnedintonaturalspeech•illustratehowChinamaycontributetospaceexplorationinthenext50years•introduceChina’sachievementsinspaceexplorationLearningobjectivesUNIT51ThehighestmountaininthesolarsystemisonMars.2FootprintsontheMoondon’tdisappear.Readeachstatementanddecideifitistrue(T)orfalse(F).Youmaysearchonlineifyouarenotsureabouttheanswer.WarmingupThehighestmountaininthesolarsystemisOlympusMonsonMars.Itisamassiveshieldvolcanothatstandsabout25kilometershigh,whichisroughlythreetimestallerthanMountQomolangma.TTheMoonhasnowind,norain,andnoearthquakestodisturbthedust.Therefore,thefootprintsleftbyApolloastronautswillremainvisibleforaverylongtime.—Spaceexplorationfunquiz—T1UNIT5Warmingup3AyearonVenusismorethan365days.4China’sZhurongroverexploredMars.A“year”isthetimeittakesaplanettoorbittheSun.Venustakesonly225EarthdaystoorbittheSun,whichislessthan365days.However,asingle“day”onVenus<243Earthdays>isactuallylongerthanitsyear.FTheZhurongroverwaspartoftheTianwen-1mission.ItsuccessfullylandedonMarsinMay2021,makingChinathesecondcountrytooperatearoveronMars.TReadeachstatementanddecideifitistrue(T)orfalse(F).Youmaysearchonlineifyouarenotsureabouttheanswer.1UNIT5Warmingup5TheMoonhasitsownmagneticfield.UnliketheEarth,theMoondoesnothaveaglobal,dipolarmagneticfieldtoday.Whilemoonrocksshowthatithadamagneticfieldbillionsofyearsago,thecurrentMoononlyhasveryweakmagneticspotsinthecrust.FReadeachstatementanddecideifitistrue(T)orfalse(F).Youmaysearchonlineifyouarenotsureabouttheanswer.1UNIT5WarmingupWorkinpairs.Discusswhyitisimportantforhumanstoexplorespace.Considerscientific,technological,economic,andculturalreasons.Thefollowingquestionsmayhelpyoudevelopyourideas.1Howcanspaceexplorationbenefitscienceandtechnology?2

HowmightitimprovelifeontheEarth?3

WhyisspaceexplorationimportantforcountrieslikeChina?4

Howcanexploringspaceinspirepeople?Afterdiscussion,taketurnssummarizingyourideastoyourpartnerintwoorthreesentenceseach.2UNIT5WarmingupSpaceexplorationisimportantbecauseithelpsusunderstandthesolarsystem,planets,andtheuniverse.Italsoencouragesthedevelopmentofnewtechnologies,suchassatellites,solarpanels,andadvancedrobotics.ThesetechnologiescanimprovelifeontheEarthbyenhancingcommunication,weatherforecasting,navigation,andevenmedicalresearchthroughexperimentsinmicrogravity.ForcountrieslikeChina,exploringspaceshowsscientificstrength,encouragesinnovation,andhelpsthecountrytotakepartinimportantglobalresearch.Finally,spaceexplorationinspirescuriosityandcreativity,motivatingyoungpeopletostudyscience,engineering,andtechnology.CONTENTSPassageConversationNewsreportsUNIT5UNIT5ConversationListeningandunderstandingWordsandexpressionsvelvetn.天鹅绒

cement

n.

水泥

magnificent

a.

壮观的

desolation

n.

荒芜

tremendously

ad.

极其Propernames

Buzz巴兹（美国航天员）UNIT5ConversationListeningandunderstandingHaveyoueverwonderedwhatitisliketobeontheMoon?Nowlistentotheconversation,thenchoosethebestanswertoeachofthequestionsyouhear.11A.ThepossibilityoflifeontheMoon.B.TheexperienceofbeingontheMoon.C.ThechallengesofexploringtheMoon.D.ThedifferencesbetweentheMoonandtheEarth.Q:Whatdoestheinterviewmainlyfocuson?√UNIT5ConversationListeningandunderstandingHaveyoueverwonderedwhatitisliketobeontheMoon?Nowlistentotheconversation,thenchoosethebestanswertoeachofthequestionsyouhear.12A.Itstickstogether.B.Itcontainsalotofair.C.Itislightgrayincolor.D.Ithasaroughtexture.Q:WhatdowelearnaboutthedustontheMoon?√UNIT5ConversationListeningandunderstandingHaveyoueverwonderedwhatitisliketobeontheMoon?Nowlistentotheconversation,thenchoosethebestanswertoeachofthequestionsyouhear.3A.Itwassovastbutlifeless.B.ItlookedsodifferentfromtheEarth.C.Gettingtherewasagreatachievement.D.Beingonitwassomethinghehadconsideredimpossible.Q:WhydidBuzzdescribetheMoon’slandscapeas“magnificent”?√1UNIT5ConversationListeningandunderstandingHaveyoueverwonderedwhatitisliketobeontheMoon?Nowlistentotheconversation,thenchoosethebestanswertoeachofthequestionsyouhear.4A.Hewasreallybotheredbyit.B.Heneitherenjoyeditnorhatedit.C.Hefounditbothchallengingandenjoyable.D.Heconsidereditalessrewardingpartofspaceflight.Q:HowdidBuzzfeelaboutweightlessness?√1UNIT5ConversationListeningandunderstandingListentotheconversationagainanddecidewhethereachofthefollowingstatementsistrue(T)orfalse(F).21SeenfromtheMoon,theEarthwasaboutfourtimesthesizeofafullmoon.2AccordingtoBuzz,theEarthlookedlikeabrilliantjewelwhenseenfromtheMoon.3BuzzthoughtwalkingontheMoonwasnotsodifferentfromwalkingontheEarth.4Buzz’sexperienceontheMoonwasbeyondhisexpectations.5Buzzdidnotgivemuchthoughttothescariestaspectsoftheflight.TFFTTUNIT5ConversationInterviewer:Hello!Buzz,asthesecondpersontosetfootontheMoon,canyoutelluswhattheEarthlookedlikefromtheMoon?Buzz:FromtheMoon,theEarthwasfourtimesthesizeofafullmoonseenfromtheEarth.Itwasabrilliantjewelintheblackvelvetsky.Interviewer:Amazing!CanyoudescribewhatitfeltliketowalkontheMoon?IsitssurfacedifferentfromthatoftheEarth?ScriptListeningandunderstandingUNIT5ConversationBuzz:ThesurfaceoftheMoonislikenothinghereontheEarth!It’stotallylackinganyevidenceoflife.Thereisdustmixedwithtinystonesandrocks,andsomeoftherocksarehuge.Thedustisaveryfine,overalldarkgray.Andbecausethereisnoair,theduststickstogetherlikecement.Interviewer:WasbeingontheMoondifferentthanwhatyouexpectedittobe?Buzz:Iexpectedtheunexpectedandwentwithanopenmind.Ithinkthevisualscenewasdescribedbymywordsonfirstlanding—“magnificentdesolation.”“Magnificent”fortheachievementofbeingthere,andScriptListeningandunderstandingUNIT5ConversationScriptListeningandunderstanding“desolation”fortheagesoflifelessness.Interviewer:Manypeoplearealsocuriousabouthowitfelttobeweightless.Buzz:There’satremendouslysatisfyingfreedomassociatedwithweightlessness.It’schallengingbecauseyoucan’tpushorholdontoanything,soyouneedtoadjusthowyoudothings.Ifoundweightlessnessoneofthemostfunandenjoyable,challengingandrewardingexperiencesofspaceflight.UNIT5ConversationScriptListeningandunderstandingInterviewer:Onelastquestion:Whatwasthescariestpartofbeinginspace?Buzz:Wereallydidn’tspendmuchtimeinvestigatingthescariestaspectsofourflight.Itwasbettertofocusontheproblemswecouldsolveandnotworryaboutthosewecouldn’t.UNIT5ConversationRole-playRole-playthesituation.3Readthescenariobelowandthinkaboutwhatyouwanttoaskorshare.DiscussyourinitialideaswiththeAItutoronUcampus.StudentA:YouarepassionateaboutspaceexplorationandbelievethatcrewedmissionstotheMoonarevitalforhumanity’sfuture.You’dliketoshareyourperspectivewithyourfriend,emphasizingthevalueofhumanpresenceinspace.

StudentB:You’recuriousaboutyourfriend’sviewsonlunarexplorationandareweighingthebenefitsofhumanversusroboticmissions.Askthoughtfulquestions,suchaswhichisbettersuitedforlunarSTEP1UNIT5ConversationRole-playexploration:humansorrobots,andwhetheryourfriendwouldwanttobecomeanastronaut.ChooseyourroleandstarttheconversationwiththeAItutor.Reviewthereal-timefeedbackfromtheAIspeakingtoolaftertheconversation.Youmayrepeatthesameroletoimproveyourperformance,orswitchrolestoexplorethealternativeperspective.STEP2STEP3UNIT5ConversationStudentA:DidyouwatchthenewsaboutthenewMoonmissionlastnight?StudentB:Yeah,Idid.Itwasremarkable.ThepicturestakenoftheMoonreallygotmethinking—doyouthinkweshouldsendhumansorrobotstotheMoon?StudentA:Ithinkhumansshouldgo,becausetheycanmakedecisionsquicklyanddealwithunexpectedproblemsincreativeways.RobotshavetowaitforinstructionsfromtheEarth,andthatcanbeslow.StudentB:Thatmakessense.Canyougivemeanexample?Role-playUNIT5ConversationStudentA:Sure.Whenastronautsdospacewalks,theysometimesneedtofixthingsoutsideontheirown.Theycanseetheproblemandsolveitonthespot.Arobot,however,cannoteasilydothesamewithoutsomeoneguidingitthrougheverystep.StudentB:Iseeyourpoint.ButIstillleantowardrobotsbecausethey’resaferandmuchcheaper.StudentA:That’strue.Sendinghumansintospaceisriskyandveryexpensive.Role-playUNIT5ConversationStudentB:Exactly.Thedangertoastronautsisabigworryforme.StudentA:Still,Ithinkhumanexplorationgivespeopleaspecialkindofexcitementandinspirationthatrobotscan’treallycreate.StudentB:That’sfair.Maybethebestwayistocombineboth:Letrobotsgofirsttochecktheareaandsetupbasiclivingspaces,thenlethumansfollowanddodeeperwork.StudentA:Right.Stepbystep,amixedapproachseemsthemostreasonable.Bytheway,wouldyoueverwanttobecomeanastronautandgototheMoonyourself?Role-playUNIT5ConversationStudentB:I’vethoughtaboutit.Thephysicalandmentalchallengesarereallytough,andIknowitneedsyearsoftraining.Butbeingpartofsomethingsobigandmeaningfulreallyattractsme.EvenifIneverwalkontheMoon,I’dlovetohelpdesignthemissionsorworkonthesupportsystemsbackontheEarth.Whataboutyou?StudentA:Sameforme.I’mnotsureIcouldhandlespacetravel,butIbelievewecanallplayapart.Ifnotasastronauts,thenasengineers,researchers,orpeoplewhosupportspacescienceinourownways.Role-playUNIT5ListeningandunderstandingIdentifyingkeyinformationWhenlistening,itisimportanttoidentifykeyinformation.Keepinmindthatnotallinformationisofequalimportance.Someinformationconsistsofkeyfactsandfiguresormainarguments,whileotherinformationismerelyexamplesillustratingamainpoint,oranecdotesthatarelessrelevanttothemainargument.Identifyingkeyinformationcanhelpyougraspthecoremessageofmaterialsandfacilitateyourunderstandingofdetails.PassageMicrocourseUNIT5ListeningandunderstandingIdentifyingkeyinformationSopayattentiontoexpressionsthatindicatekeyinformation.Ifyouarelisteningtoatalkonthehistoryofspaceexploration,payattentiontoexpressionssignalingaparticularhistoricalera(e.g.“DuringtheRenaissance,”“modernspaceexploration”),andexpressionshighlightingamajorimpact(e.g.“laidthefoundationfor,”“conductedgroundbreakingexperiments”).PassageUNIT5ListeningandunderstandingWordsandexpressionscosmos

n.

宇宙awen.敬畏celestial

a.

天空的inquiry

n.

探查formulate

vt.

构想；制定PassageUNIT5ListeningandunderstandingPropernames

Copernicus

哥白尼（波兰天文学家）

Kepler

开普勒（德国天文学家）

Galileo

伽利略（意大利天文学家）

KonstantinTsiolkovsky

康斯坦丁·齐奥尔科夫斯基（苏联航天科学家）

RobertH.Goddard

罗伯特·H.戈达德（美国火箭专家）PassageUNIT5PassageListeningandunderstandingFromancientskywatcherstomoderntechnology,spaceexplorationhasevolvedovertime.Nowlistentothepassage,thencompletethetimelineofspaceexplorationwithwhatyouhear.11)__________observationsEarlycivilizationsdevelopedsophisticatedsystemsfortrackingcelestialevents,layingthefoundationforhumanity’s2)_____________withthecosmos.AncientfascinationThetimelineofspaceexplorationUNIT5PassageInventionslikethetelescopeenableddetailedobservationofcelestialobjectsandexpandedhumanunderstandingofthe5)________________

oftheuniverse.Pioneeringworkinrocketryinthelate19thandearly20thcenturiesPioneersformulatedthemathematicalprinciplesofrocketflightandpatented6)___________________,pavingthewayformodernspaceexploration.ListeningandunderstandingvastnessRenaissancediscoveriesandinventionsRenaissanceastronomers3)______________humanunderstandingofthesolarsystemandchallengedthe4)________________abouttheEarth’splaceinthecosmos.existingbeliefsrevolutionizeddesignsforrocketsUNIT5Listeningandunderstanding1A.Toexpresstheiraweandwonderforthecosmos.B.Toservecertainpracticalandsymbolicfunctions.C.Tocelebratethespiritofexplorationanddiscovery.D.Tolaythefoundationforjourneyingintotheunknown.Q:Whydidsomeancientculturesdevelopsystemsfortrackingcelestialevents?√Listentothepassageagainandchoosethebestanswertoeachofthequestionsyouhear.2PassageUNIT5Listeningandunderstanding2A.Galileofirstlearnedaboutthe“Dutchperspectiveglass.”B.Galileobegantostudythemechanismsinsidethetelescope.C.Galileosucceededininventingthefirsttelescopeintheworld.D.Galileopublishedwhathehadobservedthroughhistelescope.Q:Whathappenedintheyear1610?√2PassageListentothepassageagainandchoosethebestanswertoeachofthequestionsyouhear.UNIT5Listeningandunderstanding3A.Helaidouttheconceptofspaceexploration.B.Heconductedpioneeringexperimentsinrocketdesign.C.Hebuiltrocketsformilitaryuseintheearly20thcentury.D.Heformulatedthemathematicalprinciplesofrocketflight.Q:WhatdowelearnaboutRobertGoddard?√2PassageListentothepassageagainandchoosethebestanswertoeachofthequestionsyouhear.UNIT5ScriptSpaceexplorationhascapturedthehumanimaginationforcenturies,drivingustoseekanswerstothemysteriesofthecosmos.Althoughoftenassociatedwithrecentscientificadvancements,theoriginsofspaceexplorationcanbetracedbacktoancientcivilizationsthatobservedtheskieswithaweandwonder.Ancientcultures,suchastheEgyptians,Greeks,andChinese,developedsophisticatedsystemstotrackcelestialeventsandusedthemforpracticalandsymbolicpurposes.Theseancientobservationsandinterpretationslaidthefoundationforhumanity’sfascinationwiththecosmos.DuringtheRenaissance,scientificinquirybegantoshapeourunderstandingoftheListeningandunderstandingPassageUNIT5ScriptListeningandunderstandingPassageuniverse.AstronomerssuchasCopernicusandKeplerrevolutionizedourunderstandingofthesolarsystemandchallengedtheexistingbeliefsabouttheEarth’splaceinthecosmos.Afterhearingaboutthe“Danishperspectiveglass”in1609,Galileoconstructedhisowntelescope.InMarchof1610,hepublishedtheinitialresultsofhistelescopicobservations.Theinventionofthetelescopeenabledhumanitytoobservecelestialobjectsingreaterdetailandexpandedourunderstandingofthevastnessoftheuniverse.ThefoundationsofmodernspaceexplorationwerelaidbytheeffortsofearlyUNIT5ScriptListeningandunderstandingPassagerocketrypioneers.OnesuchfigureisKonstantinTsiolkovsky,aRussianscientistwhoformulatedthemathematicalprinciplesofrocketflightandlaidouttheconceptofspaceexplorationinthelate19thandearly20thcenturies.Similarly,RobertH.Goddard,anAmericanphysicist,conductedgroundbreakingexperimentsandpatenteddesignsforrockets,pavingthewayforfutureadvances.Aswecontinuetopushtheboundariesofspaceexploration,letusnotforgettheremarkableindividualsandcivilizationsthatpavedtheway.Theyareconstantremindersofthetimelesshumanspiritofexplorationanddiscoverythatfuelsourjourneyintotheunknown.UNIT5ThinkingandspeakingThepassagehighlightssomeofthekeyfiguresinexploringthemysteriesofthecosmos.WorkinpairsandintroducetoeachotheraChinesescientistwhohasmadegreatcontributionsinthisfield.3LogontoUcampustosubmityouranswerandgetreal-timefeedback.OneimportantcontemporaryChinesescientistinspaceexplorationisQianXuesen,oftencalledthe“FatherofChineseRocketry.”HestudiedintheU.S.andworkedonearlyrocketresearch,butreturnedtoChinain1955.HeplayedakeyroleindevelopingChina’smissileandspaceprograms.Underhisleadership,Chinalauncheditsfirstsatellitein1970.Withouthim,China’sspaceachievements,suchassendingastronautstospace,mighthavetakenlonger.Heshowedgreatpatriotismandscientifictalent,andheremainsaPassageUNIT5nationalheroinChina’sjourneyintospace.China’sfascinationwiththeheavens,however,goesbackmuchfurther—tobrilliantmindslikeZhangHengoftheEasternHanDynasty(78-139C.E.).Eventhoughhelivednearly2,000yearsago,ZhangHengmadegroundbreakingcontributionstoastronomy.Hecreateddetailedstarmaps,explainedlunareclipsesscientifically,andeveninventedtheworld’sfirstseismoscopetodetectearthquakes.Hisworkreflectedadeepcuriosityaboutthenaturalworldandtheskiesabove.Inmanyways,ZhangHeng’scuriosityandinventionscontributedtoChina’slongtraditionofexploringtheuniverse.PassageThinkingandspeakingUNIT5NewsreportsWordsandexpressions

asteroid

n.

小行星

expedition

n.探险

probe

n.

探测器

orbitern.

轨道器

modulen.（航天器的）舱

Newsreports1UNIT5NewsreportsAsoneofChina’srecentendeavorstoexploretheuniverse,Tianwen-2probe’sdecade-longexplorationjourneywillhelpadvanceourunderstandingoftheuniverse.NowlistentoNewsreport1,thenchoosethebestanswertoeachofthequestionsyouhear.1A.Acarrierrocketandanorbiter.B.Anorbiterandareentrymodule.C.Acarrierrocketandamechanicalarm.D.Amechanicalarmandareentrymodule.Q:WhatistheprobeoftheTianwen-2missioncomposedof?√1Newsreport1UNIT5NewsreportsAsoneofChina’srecentendeavorstoexploretheuniverse,Tianwen-2probe’sdecade-longexplorationjourneywillhelpadvanceourunderstandingoftheuniverse.NowlistentoNewsreport1,thenchoosethebestanswertoeachofthequestionsyouhear.2A.Aquasi-satellitecalled311P.B.Amain-beltcometcalled311P.C.Aquasi-satellitecalled2016HO3.D.Amain-beltcometcalled2016HO3.Q:WhereisTianwen-2settogoafterreturningsamplestotheEarth?√1Newsreport1UNIT5NewsreportsAsoneofChina’srecentendeavorstoexploretheuniverse,Tianwen-2probe’sdecade-longexplorationjourneywillhelpadvanceourunderstandingoftheuniverse.NowlistentoNewsreport1,thenchoosethebestanswertoeachofthequestionsyouhear.3A.ItisnottoofarfromtheEarth.B.Itisthesmallestquasi-satellitetotheEarth.C.Itmaycontaincluestothesolarsystem’searlyhistory.D.Itisthemoststableexampleofanear-Earthcompanion.Q:WhyisTianwen-2settotarget2016HO3?√1Newsreport1UNIT5NewsreportsScriptInMaythisyear,China’sfirstasteroidsample-returnmission,Tianwen-2,waslaunchedfromtheXichangSatelliteLaunchCenterinSichuanProvince.MissionplannershavesaidthatTianwen-2,thecountry’ssecondinterplanetaryexpedition,issettotarget2016HO3,oneoftheclosestquasi-satellitestotheEarth.Themissionusesabigcarrierrockettosendaprobecomprisingtwoparts—anorbiterandareentrymodule—towardtheasteroid.Afterapproaching2016HO3,theunmannedspacecraftorbitstheasteroidformonthsandthenmovesNewsreport1UNIT5NewsreportsScriptveryclosetoit,usingamechanicalarmtocollectdustfromitssurface.Next,Tianwen-2fliesbacktotheEarth’sorbitandreleasesitsreentrymodule,whichwillreturntothegroundwiththesamples.Theorbiterwillthenstartanewjourneytowardamain-beltcometcalled311Pandcontinueitsscientificexploration.2016HO3orbitstheSun,soitremainsaconstantcompanionoftheEarth.ItistoodistanttobeconsideredatruesatelliteoftheEarth,butitisthebestandmoststableexampletodateofanear-Earthcompanion,orquasi-satellite.Newsreport1UNIT5NewsreportsScriptScientistsbelievethatitcontainscluestothesolarsystem’searlyhistory,includingitsoriginalcompositionandtheprocessofitsformationandevolution.Newsreport1UNIT5NewsreportsWordsandexpressions

cress

n.

水芹

stress

n.【植物】胁迫

Propernames

UniversityofFlorida

佛罗里达大学（美国）

Apollo

阿波罗计划（美国在1961年至1972年间实施的载人登月太空任务）Newsreport2UNIT5NewsreportsDespitethemanytripshumanshavemadetotheMoon,thereisstillalotofscientistswhodon’tknowaboutit,suchasitssoil.NowlistentoNewsreport2andchoosethebestanswertoeachofthequestionsyouhear.1A.Itdiedonthesecondday.B.Itstruggledtodevelopproperly.C.Itstartedgrowingafterthesixthday.D.Itshowedsignsofstressfromthebeginning.Q:Whatwasobservedofthecressgrowninlunarsoil?√1Newsreport2UNIT5Newsreports2A.Toseeifcresscanmakelunarsoillesstoxic.B.Toseeiflunarsoilcanbeusedforgrowingfood.C.ToseeiflunarsoilissimilartodustfoundonMars.D.Toseeifcresscanserveshort-termexplorationgoals.Q:Whywereresearchersinterestedingrowingcressinlunarsoil?√1Newsreport2DespitethemanytripshumanshavemadetotheMoon,thereisstillalotofscientistswhodon’tknowaboutit,suchasitssoil.NowlistentoNewsreport2andchoosethebestanswertoeachofthequestionsyouhear.UNIT5Newsreports3A.238kg.B.283kg.C.328kg.D.382kg.Q:Whatwasthetotalamountoflunarsamplesbroughtbackbythe1969to1972Apollomissions?√1Newsreport2DespitethemanytripshumanshavemadetotheMoon,thereisstillalotofscientistswhodon’tknowaboutit,suchasitssoil.NowlistentoNewsreport2andchoosethebestanswertoeachofthequestionsyouhear.UNIT5NewsreportsScriptLastweek,scientistsfromtheUniversityofFloridareportedthattheyhadsuccessfullygrownatypeofcressfromseedsplantedinlunarsoilsamples.Muchtotheirsurprise,theseedsstartedgrowingaftertwodays.“Ican’ttellyouhowsurprisedwewere,”saidamemberoftheresearchteam.“Everyplant—whetherinalunarsampleorinacontrol—lookedthesame,upuntilaboutDaySix.”Afterthat,however,differencesemerged.Theplantsgrowninlunarsoilstartedtoshowstress,developedmoreslowly,andendedupsmallerthantheothers.Buttheresearchersinvolvedinthestudysayitisabreakthrough—Newsreport2UNIT5NewsreportsScriptandonethathasearthlyimplications.Thisresearchiscriticaltolong-termhumanexplorationgoalsaswe’llneedtouseresourcesfoundontheMoonandMarstodevelopfoodsourcesforfutureastronautslivingandoperatingindeepspace,addedanotherresearcher.Onechallengeforresearchersisthatthereissimplyverylittlelunarsoiltoexperimentwith.Overathree-yearperiod,theastronautsonthe1969-1972Apollomissionsbroughtback382kilogramsofrocks,coresamples,sandanddustfromthelunarsurface.Thisresearchteamwasgivenonly12gramsfromthesamples,onegramforeachofthe12plantsintheexperiment.Newsreport2ViewingandspeakingViewingandunderstandingWordsandexpressions

UNIT5graphenen.

石墨烯dockingstation

n.

对接站tether

n.

系链cable

n.（金属）缆绳nickeln.【化学】镍cobalt

n.【化学】钴ViewingandspeakingViewingandunderstandingUNIT5Wordsandexpressions

lethala.致命的skyrocketvi.激增prescriptionn.（医生开的）药Propernames

511Davida小行星511KesslerSyndrome凯斯勒综合征（描述近地轨道上太空垃圾的链式碰撞效应的理论）ViewingandspeakingViewingandunderstandingThankstorapidprogressinspaceexploration,thetechnologiesonceexistingonlyinsciencefictioncouldsoonbecomeareality.Nowwatchthevideoclip,thencompletethetablewithwhatyouhear.1UNIT5ViewingandspeakingViewingandunderstandingUNIT5PredictionsImplicationsSpaceelevatorscantransportpeopleeffortlesslyinto1)_______.2)__________________canbecomearealthing.Miningformanyresourceswillbedoneinspace.DamagetotheEarth’s3)_____________canbereduced.orbitSpacetourismecosystem

ViewingandspeakingViewingandunderstandingUNIT5PredictionsImplicationsHumansarelikelytoestablish4)_______________________onMars.Manychallengesneedtobeovercomeforpeopletogrowand5)________theirpresenceonMars.Spacecanbeusedforco