一、阅读理解AChina’sFive-hundred-meterApertureSphericalRadioTelescope(500米口径球面射电望远镜)(FAST)hasdetectedarepeatingfastradioburst(FRB)—mysteriousradiosignalsfromouterspace—forthefirsttime,ScienceandTechnologyDailyreported.ScientistsontheFASTprojectwiththeNationalAstronomicalObservatoriesofChina(NAOC)revea ledthenewslastWednesday.TheFRBoriginatedsomethreebillionlightyearsawayfromEarth.Otherfact orsincludingaircraftandsatelliteshavebeendismissedandcrossexaminationisbeingcarriedout,thescien tistssaid.FRBhassincebecomeoneofthehottesttopicsinastronomy.Itwasnotuntil2007whenthefirstFRBwa sdiscoveredbyhumans.Fewerthan100FRBshavebeendetectedinternationally.Thereisstillnoreasonabl eexplanationfortheoriginofFRBintheinternationalscientificcommunityatpresent.FRBsmostlyonlyap pearonce,whichmakesthemveryhardtotrack.TheFRBdetectedbyFAST’sreal-timedetectionterminal(终端),however,isonethathasbeenobservedbefore,saidZhangXinxin,anassistantengineerwiththeNAOC. KnownasFRB121102,itwasfirstdiscoveredin2012andfoundtorepeatin2015.Analysisofdatalaterlocat edthesourceofthesignalcomingfromadwarfgalaxy(矮星系)threebillionlightyearsaway.ThefirstpulsefromFRB121102wasspottedbyFASTonAug30,2019.Af terthis,thetelescoperecordeddozensofpulsesfromtheFRBoverthecourseofdays.OnSept3,2019alone, morethan20pulsesweredetected.Thenumberofmysteriousburstsdetectedsofaristoosmalltodrawanyconclusions,Zhangsaid.FAS T,theworld’slargestsingle-dishradiotelescope,hasacertainedgeindetectingrepeatedFRBs.Thisisbecausethe19-beamreceiverinstalledonFAST,coveringfrequencyrangesof1.05-1.45GHz,isverysensitivetoradiosignals,Zhangsaid.1.Thewholetextmainlygivesusanintroductionto________.A.abriefintroductionofFAST.B.adiscoveryofFASTC.thevalidationofFASTD.theusageofFAST2.WhichofthefollowingstatementsisTRUE?A.FRB121102isthefirstfastradioburstthatwasdiscoveredbyhumans.B.TheFRBdetectedbyChina’sFASTthistimehasnotbeenobservedbefore.C.FRBsmostlyonlyappearonce,whichmakesthemveryhardtotrack.D.Wecaninferthatbillion-lightyearisatermoftimeinastronomy.3.ApertureSphericalRadioTelescope(FAST)_______.A.istheworld’slargestradiotelescopeB.hasdetectedmorethan100FRBsC.foundreasonableexplanationfortheoriginofFRBD.hasbeeninstalledwiththe19-beamreceiverBSurprise!HighSchoolStudentDiscoversNewPlanetThreeDaysIntoNASA.When17-year-oldWolfCukieracceptedaninternship(实习)atNASA,heexpectedtobechallengedandgaininsightsintopursuingacareerinastrophysics(天体物理学).Instead,heattainedworldwidefameforanachievementfindinganewplanet!Theteenagercameacrossthedistantworldwhileexaminingimagesofthevariationsinstarbrightness capturedbyNASA’sTransitingExoplanetSurveySatellite(TESS)anduploadedtoPlanetHuntersTESSb yamateurcitizenastronomers.“Iwaslookingthroughthedataforeverythingthevolunteershadmarked,”C ukiersaid.“Aboutthreedaysintomyinternship,IsawasignalfromasystemcalledTOI1338.Atfirst,Ithoug htitwasastellareclipse(日食)butthetimingwaswrong.Itturnedouttobeaplanet.”FurtherresearchrevealedthatTOI1338b,asitisno wcalled,isararecircumbinaryplanet(环双星行星)—aworldorbitingtwostars.Evenmoreexciting,TOI1338bisthefirstcircumbinaryworlddiscoveredbythe TESSmission.TheresearchersbelievethatTOI1338bisabout6.9timeslargerthanEarth.TheexpertsclaimthatTOI 1338b’stwostarsvaryinsize.ItisalsotheonlyplanetintheTOI1338system,whichlies1,300light-yearsawayfromEarth.Notsurprisingly,theHighSchoolseniorislookingtopursueacareerinphysicsandastrophysics.Whe naskedofhisplanstoseekoutajobatNASA,theyoungstersaid,“I’venoideaaboutNASA’shiringpractices butitcan’thurt!”Headded,“Acareerinspaceresearchisappealing.”4.Whatkindofwritingdoesthetextbelongto?A.Abiography.B.Anovel.C.Adiary.D.Anewsreport.5.WhatcanweknowaboutTOI1338b?A.Itisarareplanetwithonlyonestar.B.Itisabout6.9timessmallerthanEarth.C.Itlies1,300light-yearsawayfromEarth.D.Itisthefirstcirumbinaryplanetdiscoveredbyhuman.6.Whatcanweinferfromthelastparagraph?A.Cukierisveryproudofhimself.B.NASAisverystrictonhiringpractices.C.CukierhasgreatinterestinworkingatNASA.D.CukierknowsnothingaboutNASA’Shiringpractices.7.Whichofthefollowingwouldbethebesttitleforthepassage?A.ANewPlanet.B.NASA’sTessMission.C.AWorld-famousTeenager.D.TheDiscoveryofaNewPlanet.二、七选五Forgenerations,peoplehavedreamedoftravelingtoMarstoexploreEarth’sclosestplanetaryneighb or.TheAmericanSpaceAgency,NASA,andotherspaceagencieshaveannouncedplanstosendpeopletoth eRedPlanet.1.IntheUnitedStates,somevolunteersarelearninghowpeoplewillreacttomonthsofseparationfromot herhumansonaMarsbase.2. Butactually,theyarelivinginHawaii.TheprojectiscalledHI-SEAS.NASAhasprovidedfinancialsupportforthework.Sixpeoplearelivingonamake-believeMarsBase.TheyareisolatedhighontopofMaunaLoa,avolcanicmountainontheBigIslandofHaw aii,whoseenvironmentisasclosetoMarsaswecanfindonEarth.3. Whenmeasuredfromitsbase,deepintheocean,MaunaLoaisthesecondlargestmountaininoursolarsyste m.Becauseitissohigh,thelandisnotwarmorrichwithplants,liketherestofHawaii.Visually,itisverysimil artowhatyouseeonMars.Theycanwalkacrossredlavarockfromthevolcanoandseethewonderfulvolcani cmaterial.Thereisreallynovisibleplantlifeoranimallife.ThesixmemberHI-SEAScrewismostlyself-sufficient.Theytakecareofthemselves.4. Buttheindividualsbringingthosesuppliescannotcommunicatewithvolunteersinsidethebase.Thecurre ntcrewhasbeenlivinginthebasesinceOctober,andwillstayuntilJune.Crewmemberscommunicatewitht heoutsideworldthroughe-mailandblogs.TheyalsoproducevideosontheYouTubewebsite.5.A.Butsuchamannedmissionisyearsaway.B.Marshasthelargestvolcanicmountaininthesolarsystem.C.TheyarespendingeightmonthsinanareathatlooksmuchlikethesurfaceofMars.D.MaunaLoais2,500metersabovesealevel.E.ConditionsonthesurfaceofMarsareclosertotheconditionsonEarth.F.Fornow,onamountaintopinHawaii,volunteersaregettingatasteoflifeonafutureMarsbase.G.Foodandsuppliesarebroughttothem.一、阅读理解A【答案】1-3BCD【解析】这是一篇新闻报道。