Unit4 Space Exploration-【同步拓展阅读】(人教版必修第三册)(原卷版+解析)

Unit4

Space

Exploration本单元的中心话题是“太空探索”，属于“科技创新”的主题语境。人类为什么要进行太空探索？就短期来说（short-term），太空探索+外太空扩张是解决地球资源短缺问题的必要出路。地球的资源是有限，且不说很多资源是不可再生的：比如地球上的金元素，都是宇宙中超新星爆炸时洒落在在星辰中的；而我们不可能再允许地球周围发生超新星爆炸，因为这样地球也会随之毁灭，因此地球的金元素，便是不可再生的资源；同理，地球上还有很多元素都在宇宙大爆炸时期产生的，这些元素也皆为不可再生元素。就长期来说（long-term），地球是有生命周期的，宇宙中所有的星星都有寿终就寝的那一刻，甚至连宇宙本身也是。先不说其他太空中的混乱可能会给地球造成的危机，毕竟恐龙灭绝的故事大家应该都听说过，这只是风险，却不是必然的结果。那么对于地球终点的必然结果，便是恒星死去的那一刻，也就是说太阳系的唯一恒星——太阳——变为白矮星（恒星的尸体）的那一刻。由于届时太阳的质量会发生巨大的坍缩，整个太阳系的引力都会大乱，整个星系必会毁于一旦。1.卫星发射发射卫星

launchasatellite发射台

launchpad

扶梯

ladder着陆区

landingarea

着陆架landingpad主着陆场

mainlandingfield=primarylandingsite2.卫星人造卫星

artificialsatellite

返回式卫星

recoverablesatellite

通信卫星

communicationsatellite

太阳同步轨道卫星

satelliteinSun-synchronousorbit

遥感卫星

remotesensingsatellite

气象卫星

weathersatellite=meteorologicalsatellite

3.火箭多级火箭

multistagerocket

运载火箭

carrierrocket;rocketlauncher

长征二号F运载火箭

LongMarchIIFcarrierrocket

4.航天飞船构造太空舱

capsule

轨道舱

orbitalmodule返回舱

re-entrymodule推进舱

propellingmodule指令舱

commandmodule服务舱

servicemodule登月舱

lunarmodule发射台

launchpad5.轨道近地轨道

lowEarthorbit调整轨道

fine-tuneorbit

绕地球飞行

orbittheearth6.外太空国际空间站

InternationalSpaceStation太阳能电池板

solarpanel

月球车

lunarrover

外太空

outerspace;deepspace银河系

MilkyWay太空服

spaceoutfits(spacesuits）太空食物

spacefood拓展阅读一、主题阅读基础篇，5篇Imaginejet-settingfromTokyotoParis,enjoyingfirst-classtravel,afour-coursedinnerandacitytour—allwithoutleavingtheground.ThisisthefutureofairtravelaccordingtoJapanesecompanyFirstAirlines,whichhasusedthepowerofvirtualrealitytocreatedreamvacations.Passengersavoidthecostlyairporttransfer,thebaggagefeesorbusyairportterminal(航站楼)—andinsteadenjoytheprivilegesofbusinessorfirst-classtravelandanexpensivetourofParis—allwhileremainingmotionlessinTokyo.AswellasParis,FirstAirlinesalsooffersthevirtualdestinationsofNewYork,RomeandHawaii.Afterboarding,guestscansettledownforthetwo-hourflightontheiradvancedAirbusseat-surroundedbydecorationthatismodeledontheinsideofanaircraft,formaximumrealism.ThereisflightserviceandVR,foods,musicforeverydestination.Passengerswillbeservedadeliciousmealbyairstewards,alongsidedrinksandotherdesserts.Themenudependsonthedestinationofchoice—Manhattanclamchowder(蛤肉菜汤)andcheesecakeforNewYorkandsalmontartarandonionsoupforParis.Afterlandingatthedestination,guestscanenjoya360-degreetourofthedestination—allthankstoprojection(投影)mappingandvideo.Itmakesforasupposedlystress-freevacation,perfectforthosewhoseabilitytotravelabroadislimitedbycostorhealth.Virtualrealityisbecomingincreasinglypresenteverywhereatalltimesintheworldoftravel—allowingtravellerstoappreciatethewondersoftheworld,allwithoutleavingtheirhouses.Atjust4,980yen($46)forbusinessclassand5,980yen($56)forfirstclass—thesetwo-hourflightsarefarmoreaffordablethantheirreal-lifeflights.1.WhatcanwelearnaboutthefutureofairtravelfromTokyotoParis?A.Itishigh-flying.B.Itismoney-saving.C.Itispower-wasting.D.Itistime-consuming.2.Whencanpassengersenjoythebeautyofthedestination?A.Uponarrival.B.Duringtheflight.C.Afterboardingtheplane.D.Ongettingofftheplane.3.Whoistheflightperfectfor?A.Peoplewhodolittlephysicalexercise.B.Peoplewhoworkundergreatpressure.C.Peoplewhodesiretotravelalongdistance.D.Peoplewhohavehealthormoneytroubles.4.Whatcanbethebesttitleforthetext?A.AscientificfantasyB.ThepowerofvirtualrealityC.Japan’svirtualairtravelabroadD.AppreciationoftheglobalwondersThecarbonfootprintshowshowmuchcarbondioxideapersonemits(排放)ineverydaylife.Itmeasurestheamountoffossil(化石)fuelsandelectricitysomeoneusesupaswellasthecarbonfootprintoftheproductstheybuy.Whenweuseourcarsorheatourhomeswithcarbondioxide，variousothergasesaresetfree._____1_____Youcanmeasureyourcarbonfootprintbyusingacalculatorthatyoucanfindonvariouswebsites.___2___InAmericaforexample，everycitizenproducesabout28tonsofcarbondioxideandotherdangerousgasesayear；inGreatBritaintheamountisabout10tons.___3___Thewaywetravel，forexample，hasamajoreffectonourenvironment.Useyourbikeorwalkforshortdistances.Publictransportisawayofgettingtoplaceswithoutputtingaburdenontheenvironment.___4___Manyenvironmentalexperts，however，arguethatitoftensavesenergytobuyfoodthatisproducednaturallyinfarawayplacesthanconsumingfoodgrownlocallyingreenhouses.Inyourhomeyoucancontributetosavingenergybyturningofflightsifyoudon’tneedthemorbyavoidingtheuseofairconditioners.Recyclingplasticglassandpapercanalsoreduceyourcarbonfootprintdramatically.___5___Onlyifweconcentrateonreducingcarbonemissionstogethercanwehopetomakeourenvironmentbetter.A．Manypeopletravelbetweencitiesandsuburbseveryday.B．ThecarbonfootprintisusuallymeasuredintonsofCO2peryear.C．Theseemissionsleadtoathickeratmosphereandglobalwarming.D．Itisalsovitaltopersuadeotherstotakethesamestepsthatyoudo.E．Therearemanyactionsyoucantaketoreduceyourcarbonfootprint.F．Thewebsitesalsoprovidecarbonstoragetoolsandmethodsforindividuals.Buyinglocalfoodisanotherwayofrestrictingemissionintotheatmosphere.Whenwewerekids,

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dieoutCitizenscienceisscienceforeveryone.Specifically,citizenscienceiswhenthepublic

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(science)questionsandsolveimportantproblems.Anyonecanbeacitizenscientist.Allittakesissometime,

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(ensure)thateverypersonhastherightandtheopportunitytoparticipateinscience.假如你是李华，你校将举办以“人工智能”为主题的科技创新大赛（theScienceandTechnologyInnovationContest）。请你就本次活动为英语校报写一则宣传稿，内容包括：(1)比赛目的、时间和内容；(2)报名方式；(3)号召大家积极参与。注意：(1)词数80左右；可以适当增加细节，以使行文连贯。主题阅读提高篇，5篇ThereisarockettowerinMississippithat’sreadytotestNASAenginespowerfulenoughtopusharockettotheMoonandMars.There’soneproblem:NASAcanceledtherocketitplannedtousetotakemantotheMoonandMarsyearsago.Despitethat,Congressorderedtheagencytokeepbuildingthetoweranyway.Theentirecostoftheprogramtotaled$350million.Andthatwasn’tall.CongressalsoorderedNASAtokeepthetowerinworkingconditionatanadditionalcostof$700,000ayear.“Myviewofthisteststandisthatitisasortofaclassicexampleofthespaceprogramnowbeingmoreaboutjobsandpeople’sdistrictsthanabouttheveryexcitingpurposeofNASA,”saidLoriGarver,aformerNASAdeputyadministrator.“Weshouldn’tbedirectedbyjustacoupleofcontractorsandindividualstodoself-servingprogramslikethisone.”ABCNewsmetwithSen.RogerWicker,whoseMississippicongressionaldelegationsavedthetower,toaskWickerwhetherthetowerwasaboutsavingthelargestemployerinthecounty—theJohnC.StennisSpaceCenter—ortoadvancespacetravel.WickertoldABCNewsthathehopedthetowerprovedtobewellspent.“Thecountrywillbenefitfromit,”Wickersaid.“ItisaninvestmentandIdobelieveadecadeorsofromnowwe’lllookbackonitandsay,‘Itiswellspentbecausetheprogramhasbeenrevived.Thatisthehope.”Theprogramhasnotyetbeenrevivedandthegovernmenthasnoplanstotesttherockets.1.What’sthepurposeofbuildingarockettowerinMississippi?A.Torealisethedreamofcarryingmantotravelinspace.B.TotestiftheenginescanpushrocketstotheMoonandMars.C.TolaunchrocketstocollectinformationfromtheMoonandMars.D.TosenduprocketstotheMoonandMarstocarryoutspaceexperiments.2.WhatisLoriGarver’sattitudetowardstherockettower?A.Cautious.B.Supportive.C.Indifferent.D.Opposed.3.Theunderlinedword“revived”canbereplacedby.A.reusedB.reformedC.rejectedD.recognisedThedesiretobenoticedbypeers（同龄人）isanaturaltendency.Yourstyle–thewayyoudressup,thewayyoucarryyourself,thetrendsyoufollow–playsakeyroleinhelpingyourstandoutfromtheothers.___1___Thefollowingtipscanhelpyou.1.Beyourself.Whybeasecond-rateversionofanybodyelsewhenyoucanbethefirst–rateversionofyourself?Nothingwillhelpyoustandoutofthecrowdmorethanyourownfeaturesbecausetherecanbeonlyoneyou.Everyonehastheirownbelief,theirownwayofthinking,theirownexperiencesthatshapetheirstyles.However,self-doubtandfearofdisapprovaldrivemanytoabandontheirownwaysandfollowwhateveryoneelseisdoing.___2___2.Keepanopenmind.Open-mindednesshelpsyouseethingsfromadifferentperspective,understandothers,findopportunities,andlearnfromothers.___3___Thereareseveralstylesthatyoushouldexploreanddeterminewhichsuitsyourownpersonality.Nobodyknowswhatfashionyourareenthusiasticabout.Butyoushouldbeclearlyawareofyourowntruefeelingsaboutit.3.Keepupwiththerecenttrends.Fashionisalwayschanging.___4___Associetychanges,sodoesfashion.Changingtrendsreflectthechangesinpeople’staste.Similarly,yoursenseoffashionchangesasyougainmoreexperiencesinlife.Keepingtrackofthelatestfashionwillhelpyouredefineyourstyle.4.Wearyourconfidence.Yourattitudetowardsdressingcanmakeasignificantdifferencetohowyoulook.Youcanwearaverybeautifuldress,butifcan’tcarryitwithconfidence,itwillnotlookgoodonyou.___5___Don’twearanuncomfortabledressjustbecauseeveryoneoryourfriendiswearingit.Remember,it’sokaytohaveyourownstyleaslongasyouareconfidentwithit.A．Also,ittellsalotaboutyourpersonality.B．Whatworkedyesterdaymaynotworktoday.C．Copyingotherswillmakeyoujustanotherfaceinacrowd.D．Havinganopenmindcanbeveryhelpfulindefiningyourstyle.E．Ontheotherhand,evenanaveragedresslooksgreatonpeoplewhowearitconfidently.F．Itisnotabsolutelynecessarytofolloweverynewtrend,andyoucanenjoytheonesyoulike.G．SimplyfollowingthefashiontrendsorwearingexpensiveclotheswillnothelpyougetadistinctstyleMolaigrewupinatinyvillageinIndia.Thevillagelaynearsomewetlandswhichbecamehissecond1.Helearnedthevalueandbeautyof2therefromaveryyoungage.Whenhewas16,Molaibegantonoticesomething3happeningaroundhishome.Afloodhadhittheareaearlierthatyearandthe4itcausedhaddrivenawayanumberofbirds.5,thenumberofsnakeshaddeclinedaswell.He6thatitwasbecausethereweren’tenoughtreestoprotectthemfromthe7.Thesolution,ofcourse,wastoplanttreessotheanimalscouldseek8duringthedaytime.Heturnedtothe9departmentforhelpbutwastoldthatnothingwouldgrowthere.However,Molaiwentlookingonhisownand10anearbyislandwherehebegantoplanttrees.11youngplantsinthedryseasonwas12foraloneboy.Molaibuiltatthe13ofeachsapling(幼树)abambooplatform,whereheplacedearthenpotswithsmallholesto14rainwater.Thewaterwouldthendrip(滴落)ontheplantsbelow.Molai15toplanttreesforthenext37years.Hiseffortshaveresultedin1,360acresofnaturally-grownlandthathasbecomehometomanyplantsandanimals.1.A.dreamВ.jobC.homeD.choice2.A.natureВ.youthC.cultureD.knowledge3.A.preciousB.interestingC.disturbingD.awkward4.A.wasteВ.tensionC.painD.damage5.A.BesidesВ.HoweverC.ThereforeD.Otherwise6.A.agreedВ.realizedC.rememberedD.predicted7.A.noiseB.heatC.diseaseD.dust8.A.directionsB.partnersC.helpD.shelter9.A.laborВ.policeC.forestD.finance10.A.rebuiltB.discoveredC.leftD.managed11.A.DecoratingB.ObservingC.WateringD.Guarding12.A.toughB.illegalC.fantasticD.beneficial13.A.backB.topC.footD.side14.A.cooldownB.keepoffC.purifyD.collect15.A.returnedB.learnedC.failedD.continuedTheShenzhou-13returncapsule,carryingthethreeChineseastronauts,ZhaiZhigang,WangYapingandYeGuangfu,_____1_____(safe)landedbackonEarthonSaturdaymorningafterarecordbreakingsix-monthmissioninspace.ChinadeclaredtheShenzhou-13mission_____2_____completesuccessafterthemedicalteamwaitingonsite_____3_____(confirm)thatallthreeastronautswereingoodhealth.Zhai,thecommanderofthemission,wasthefirst_____4_____(come)outofthecapsule,wavinghishandtothecheeringcrowdonsitewithabigsmile.Hesaidhefeltverygood.He_____5_____(follow)byWang,thefirstfemaleChineseastronautwhohadenteredChina’sspacestation.“Iwanttotellmydaughter,momreturnedafterreachingforthestars,”shesaid.Yeexitedlast_____6_____thecapsule.“Myfirstfighttospacelastedsixmonths,whichwasachallengetome.Myspacedreamcametrue,”hesaid.Duringthesix-monthjourneyinthespacestation,thecrewconfirmedkeytechnologiesfortheconstructionofthespacestation,_____7_____(involve)in-orbittranspositionofspacecraftandroboticarmoperationofheavyloads.Besides______8______(science)missions,thecrewalsogavetwolivescience______9______(lecture)fromthespacestation,during_____10_____theyconductedvariousexperimentsandansweredquestionsfromstudentswatchingtheclassonEarth.学校英文报征稿：给中国太空站（TiangongSpaceStation）宇航员们的一封信。假设你是李华，准备为学校英文报投稿，内容包括：(1)对他们为太空事业做出的成就感到骄傲；(2)询问太空站上生活、工作情况；(3)表达关心和祝愿。三、主题阅读培优篇，5篇Ifyouareeverplanningtobuyatelescopeandwanttogetyourselfinvolvedinastronomyitisalwaysagoodideatoknowabitofthesky.Getacquaintedwithafewconstellations(星座)sothatitwillbeeasierforyoutospottheconstellationswhenyouareusingyourtelescope.It’sagoodideatobuyafewmagazinesonastronomytohelpyoutogetfamiliarwiththeconstellationsintheskyandalsoreadafewreviewsonthedifferenttypesoftelescopesinthemarket.Thiswillhelpyougatheralltheinformationthatisoutthereregardingtelescopesandwhatpeoplehavetosayaboutthem.It’sadvisabletogoinforapairofbinoculars(双筒望远镜)beforeyoubuyyourfirsttelescopesothatyoucangetusedtospottingconstellationsbeforeyourviewoftheskyisnarroweddown.Thiswillalsohelpyouknowifyoureallywanttogetinvolvedinastronomy.Manypeoplebuyacostlytelescopeandthendiscoverthatthey’renotactuallyinterestedinastronomy.Experiencehasnosubstitute,andtherecertainlyisnothingbetterthanusingdifferenttelescopesbeforeyoubuyone.Thiswillhelpyoutogetthefeelofallthetypesoftelescopesandyouwillknowwhichoneiseasierforyoutouse.Alargeaperture(光圈)refractor(折射)maygiveyouanexcellentimagebutyoumaynotbeabletokeepasteadyhandwhileusingitresultinginanunclearimage.Therearethreetypesoftelescopesthatareavailableinthemarket.Ifyouwantamoreelegantlookingtelescopeyoucanalwayschoosetobuyafinebrasstelescope.It’sgoodtobecomeacquaintedwitheachtypebeforegoingfortheplungeofafirsttelescope.Thefirsttypeoftelescopeistherefractortelescope,whichuseslenses(镜片)togatherlighttoafocusattheeyepiece.Theuseoflenseshelpsthetelescopehaveasuperiorimage.Arefractingtelescopeisnotasportableastheothertwotypesoftelescopesandsoyouwillhavetobuyonewithasmallaperture.ThesecondtypeoftelescopeistheReflector.MadebySirIsaacNewton,thistelescopefunctionsbyfocusingthelightbackatthefrontofthetube,whichiswheretheeyepiecesits,byusingparabolic(抛物线的)mirrorsandanothersmallermirrortodeflectthelight.Thereisnoaddedcolorintheimagecausedbyrefractionoflightsincethistelescopedoesnotuselenses.Thesearethecheapestofalltelescopesandaremoreportablethanrefractors.Accordingtothetext,atelescopeisintendedtobeboughtfor.gettingexperienceB.watchingstarsC.studyingtheclimateD.learningaboutabitofthesky2.WhatcanwelearnfromParagraph2?A.Onemustknowsomethingaboutastronomyandtelescopes.B.Onecan’tbuyatelescopewithoutbuyingseveralastronomymagazines.C.Oneshouldcheckthetelescopesinthemarketandtrytofindabetterone.D.Onemustbefamiliarwithnewinformationofastronomyandspaceinstruments.3.Whydoestheauthoradvisebuyingapairofbinocularsfirst?A.Thetelescopeistooexpensive.B.Thebinocularsareeasiertouse.C.Youmaygainplentyofexperienceinastronomy.D.Yourviewwillbenarrowbyusingapairofbinoculars.4.Whatdoweknowabouttherefractingtelescope?A.Itlooksveryelegant.B.Itrefractslightbyaneyepiece.C.Ithasclearimageswithoutanylenses.D.Itisnotconvenienttotakealongforitssize.Publictransportisindeepwaterinsomecountries.Tothosewhohavetosqueezeontothenumber25businLondon,ortheA-traininNewYork,thechangemightnotbenoticeable.____1____Althoughtransportagenciesblameitonthingslikeroadworksandbrokensignals,itseemsmorelikelythattheyarebeingoutcompeted.____2____Otherupstartslikedock-lessbicyclesandbatterypowered“e-bikes”arealsospreading.Masstransport,ontheotherhand,ismuchlessflexible.Thisisaheadachefortheoperatorsofpublictransportsystems.____3____Butlikeitornot,publictransportdoessomethingsverywell.Itprovidesaserviceforpeoplewhoaretooold,tooyoung,toofearfulortoodrunktodriveorrideabike.Trainsandsubwayscauselesspollutionthancarsandmovepeopleatfarhigherdensities(密度).So,howtodealwiththeproblem?____4____Somecitieshavecreatedcongestion(拥堵)chargingzones,butthatisahopelesslycrudetool.Mostcongestionzonesineffectselldailyticketstodrivearoundasmuchasyoulikewithinthezone—andchargevehiclessuchastaxisandminicabsnothing.____5____Althoughnewformsoftransportoftencompetewitholdones,theyoughttogowellwitheachother.Taxiservicesandapp-basedcarscouldgetpeopletoandfromairportsandports,whichareoftenfarfromtheurbancore.A．Itisalsoaproblemforcities.B．Itisprobablythesecrettokeepingcitiesmoving.C．Transportagenciesshouldalsoaccepttheupstarts.D．Tosomeextent,pricingroaduseproperlycanbeasolution.E．Butpassengernumbersareflatorfallinginmanycountries.F．App-basedtaxiservicesaremoreconvenientthantrainsorbuses.G．Buildingaplatformtoallowthatishard,andrequiresjointefforts.WhenIwasinsixthgrade,Ijoinedthebandpro-gramtolearntoplaytheclarinet(单簧管).Thebeginningoftheyearhadgone_1_.Butasmoststudentsprogressed,Iseemedtofallbehind.Oneday.whenmyteachertoldustoplayinfrontoftheotherstudents,Iwasfilledwithfear.IknewIwould_2_.WhenIbegantoplay,myrhythms(节奏)weregood,butmytonewasanother_3_.“Didyoupracticeyourles-son?”theteacherbarkedatme.Ifeltso_4_andmyworldcame_5_downinaninstant.Fromthenon,IhatedplayingtheclarinetandIkeptgetting_6_.Withthedayofthenewperformanceapproaching,Igrewincreasinglyupset.Inamomentof_7__,Iaskedforsickleave.Itwassorelievingandsucha(n)_8_wayout.Theavoidanceofmylessonscontinueduntilmymumaskedmeaboutit.“Iwanttoquit.”Mytearsstarted_9_.“Ifyoureallywanttoquit,whyareyoucrying?”askedmum.She_10_andIrealizedIwantedtostayinbandand,bynotfacingmyfears,Ihadcreatedablackholethatwouldbedifficultto_11_outof.Imadea_12_nottohidefrommyfearsandtostanduptoeventheworstofthem,soa13couldbeachieved.ThenextdayImetwithmyotherbandteacherandtoldherIwashavingaproblemandcouldn't_14_why.Sheaskedmegentlytoplayforher.Itried,butonlyanunpleasantsoundcameout.Shedidn’t_15_atmeandhandedmeanewreed(簧片).Iputitinplaceandtriedagain.Tomygreat_16_Icouldplaywell.Myproblemwassolvedandmyfear_17_improvedalotthatyear._18_I'mgladthatIovercamemyfear.Fearcan_19_everythinginaperson'slife.Hidingfromthoseveryfearsonlycligsahole,whichmakesapersonstay_20_inside.Afterfacinguptoafear.onemayfindlifeeasierandmuchmoreenjoyable.1.A.badlyB.endlesslyC.randomlyD.smoothly2.A.messupB.moveonC.setoutD.takeoff3.A.impressionB.essayC.storyD.factor4.A.ashamedB.starvedC.excitedD.relaxed5.A、crashingB.movingC.sellingD.bending6.A.stricterB.worseC.happierD.smarter7.A.joyB.panicC.doubtD.sympathy8.A.funnyB.importantC.easyD.traditional9.A.dryingB.disappearingC.flowingD.separating10.A.hadapointB.madeachangeC.reachedalevelD.tookabreak11.A.sendB.bringC.pickD.climb12.A.requestB.resolutionC.presentationD.proposal13.A.balanceB.degreeC.positionD.solution14.A.figureoutB.giveawayC.thinkoverD.makeup15.A、aimB.smileC.waveD.shout16.A.angerB.sorrowC.disappointmentD.surprise17.A.feltB.shownC.removedD.voiced18.A.CarryingonB.LookingbackC.SteppingasideD.Turningaround19.A.consumeB.examineC.reflectD.rescue20.A.unknownB.unpunishedC.interestedD.trappedChineseastronautWangYapingmadehistoryonNovember7,2021___1___shebecamethecountry’sfirstwomantoconductaspacewalk.WangandfellowastronautZhaiZhigang,twoofthethree-memberteamcurrentlyatChina’snewTiangongspacestation,___2___(successful)completedthe6.5hourspacewalkintheearlyhoursofMondaymorning.ThethirdmemberoftheShenzhou-13crew,YeGuangfu,___3___(stay)onthespacestationtosupportthespacewalkfromthecoremodule.Duringthespacewalk,theteaminstalledasuspensiondeviceandtransferconnectorstothestation’sroboticarm.Theyalsotestedthe___4___(safe)ofsupportingequipment,___5___(include)China’sdomesticallyproducedspacesuit.It’sthefirsttimethatthecrew___6___(exit)thestationsincetheirarrivalonOctober16.Shortlyaftersteppingoutofthespacestation’scabinonSunday,Wangwavedto___7___(audience)onEarthandsaidshefeltgreat,inavideo___8___(release)bytheflightcontrolcenter.WangisChina’ssecondwomaninspace,afterLiuYangmadehistorybyjoining___9___Shenzhou-9spacecraftin2012.BeforeWang,only15womengloballyhadconductedspacewalks___10___1984,whenSovietastronautSvetlanaSavitskayabecamethefirsttodoso.假定你是李华，上周末你参加了学校组织的市科技馆研学活动。请你在校英文论坛发表一篇帖子，分享此次经历，内容包括：1．活动过程；2．个人感悟；3．期待评论。注意：1．写作词数应为80左右；2．请按如下格式在答题卡的相应位置作答。AnUnforgettableTechExplorationTourUnit4

Space

Exploration本单元的中心话题是“太空探索”，属于“科技创新”的主题语境。人类为什么要进行太空探索？就短期来说（short-term），太空探索+外太空扩张是解决地球资源短缺问题的必要出路。地球的资源是有限，且不说很多资源是不可再生的：比如地球上的金元素，都是宇宙中超新星爆炸时洒落在在星辰中的；而我们不可能再允许地球周围发生超新星爆炸，因为这样地球也会随之毁灭，因此地球的金元素，便是不可再生的资源；同理，地球上还有很多元素都在宇宙大爆炸时期产生的，这些元素也皆为不可