资源描述
2023年中考英语时事热点阅读专练热点58黑子与日冕等太阳活动一、阅读理解1Thetemperatureofthesunisover5,000degreesFahrenheitatthesurface,butitrisestoperhapsmorethan16milliondegreesatthecenter.Thesunissomuchhotterthantheearththatmattercanexistonlyasagas,exceptatthecore（核心）.Inthecoreofthesun,thepressuresaresogreatagainstthegasesthat,despitethehightemperature,theremaybeasmallsolidcore.However,noonereallyknows,sincethecenterofthesuncanneverbedirectlyobserved.Solarastronomersdoknowthatthesunisdividedintofivelayersorzones.Startingattheoutsideandgoingdownintothesun,thezonesarethecorona,chromosphere,photosphere,convectionzoneandfinallythecore.Thefirstthreezonesareregardedasthesunsatmosphere.Butsincethesunhasnosolidsurface,itishardtotellwheretheatmosphereendsandthemainbodyofthesunbegins.Thesunsoutermostlayerbeginsabout10,000milesabovethevisiblesurfaceandgoesoutwardformillionsofmiles.Thisistheonlypartofthesunthatcanbeseenduringaneclipse（日食）suchastheoneinFebruary1979.Atanyothertime,thecoronacanbeseenonlywhenspecialinstrumentsareusedoncamerasandtelescopestoshutouttheglare（刺眼的强光）ofthesunsrays.Thecoronaisabrilliant,pearlywhite,filmylight,aboutasbrightasthefullmoon.Itsbeautifulraysareasensationalsightduringaneclipse.Thecoronasraysflashoutinabrilliantfanthathaswispyspikelike（一束束穗状）raysnearthesunsnorthandsouthpoles.Thecoronaisthickestatthesunsequator.Thecoronaraysaremadeupofgasesstreamingoutwardattremendousspeedsandreachingatemperatureofmorethan2milliondegreesFahrenheit.Theraysofgasthinoutastheyreachthespacearoundtheplanets.Bythetimethesunscoronaraysreachtheearth,theyareweakandinvisible.1. Matteronthesuncanexistonlyintheformofgasbecauseofthesuns.A. sizeB.ageC.locationD.temperature2. Withwhattopicisthesecondparagraphmainlyconcerned?A. Howthesunevolved.B. Thestructureofthesun.2023年中考英语时事热点阅读专练热点58黑子与日冕等太阳活动一、阅读理解1Thetemperatureofthesunisover5,000degreesFahrenheitatthesurface,butitrisestoperhapsmorethan16milliondegreesatthecenter.Thesunissomuchhotterthantheearththatmattercanexistonlyasagas,exceptatthecore（核心）.Inthecoreofthesun,thepressuresaresogreatagainstthegasesthat,despitethehightemperature,theremaybeasmallsolidcore.However,noonereallyknows,sincethecenterofthesuncanneverbedirectlyobserved.Solarastronomersdoknowthatthesunisdividedintofivelayersorzones.Startingattheoutsideandgoingdownintothesun,thezonesarethecorona,chromosphere,photosphere,convectionzoneandfinallythecore.Thefirstthreezonesareregardedasthesunsatmosphere.Butsincethesunhasnosolidsurface,itishardtotellwheretheatmosphereendsandthemainbodyofthesunbegins.Thesunsoutermostlayerbeginsabout10,000milesabovethevisiblesurfaceandgoesoutwardformillionsofmiles.Thisistheonlypartofthesunthatcanbeseenduringaneclipse（日食）suchastheoneinFebruary1979.Atanyothertime,thecoronacanbeseenonlywhenspecialinstrumentsareusedoncamerasandtelescopestoshutouttheglare（刺眼的强光）ofthesunsrays.Thecoronaisabrilliant,pearlywhite,filmylight,aboutasbrightasthefullmoon.Itsbeautifulraysareasensationalsightduringaneclipse.Thecoronasraysflashoutinabrilliantfanthathaswispyspikelike（一束束穗状）raysnearthesunsnorthandsouthpoles.Thecoronaisthickestatthesunsequator.Thecoronaraysaremadeupofgasesstreamingoutwardattremendousspeedsandreachingatemperatureofmorethan2milliondegreesFahrenheit.Theraysofgasthinoutastheyreachthespacearoundtheplanets.Bythetimethesunscoronaraysreachtheearth,theyareweakandinvisible.1. Matteronthesuncanexistonlyintheformofgasbecauseofthesuns.A. sizeB.agelocationD.temperature2. Withwhattopicisthesecondparagraphmainlyconcerned?A. Howthesunevolved.B. Thestructureofthesun.C. Whyscientistsstudythesun.D. Thedistanceofthesunfromtheplanets.3. AllofthefollowingarepartsofthesunsatmosphereEXCEPTthe.A. coronaB.chromosphereC.photosphereD.core4. Theparagraphfollowingthepassagemostlikelydiscusseswhichofthefollowing?A. Theremaininglayersofthesun.B. Theevolutionofthesuntoitspresentform.C. TheeclipseofFebruary1979.D. Scientistswillcostmoremoneyonresearchingthecorona.【答案】DBDA【解析】本文主要介绍了太阳的相关知识，包括太阳的环境和结构等等。1. D细节理解题。根据Thesunissomuchhotterthantheearththatmattercanexistonlyasagas可知太阳比地球热得多所以物质只能以气体的形式存在，故选D。2. B推理判断题。根据Solarastronomersdoknowthatthesunisdividedintofivelayersorzones.可知第二段主要讲的是太阳的结构。故选BD2田节理命牟题。木艮据thezonesarethecorona,chromosphere,photosphere,convectionzoneandfinallythecore.Thefirstthreezonesareregardedasthesunsatmosphere.可知核心core不属于太阳的大气的部分，故选D。3. A推理判断题。本文主要讲的是太阳被分成了五层，介绍了其中的几层，所以接下去的段落最有可能是讨论太阳的剩余的层。故选A。2Ifyourcellphonesuddenlystopsworking,dontblametheserviceprovider.Themalfunction（故障）mighthavebeencausedbysomethingbiggerasolarstorm.Expertsexpectthattheearthwillseemoresolaractivitiesinthenearfuture.Themalfunctionofelectronicdevicesisjustoneoftheeffects.Sunspots（太K日黑子）serveasanindicator（标志）ofthesunsactivity.Forthepasttwoyears,sunspotshavemostlybeenmissing.Theirabsence,thelongestinnearly100years,hastakenevensunwatchersbysurprise.Whenthenumberofsunspotsdropsattheendofeach11-yearcycle,solarstormsdiedownandallbecomemuchcalmer.Thissolarminimumdoesnttlastlong.Withinayear,sunspotsandsolarstormsbegintobuildtowardanewcrescendothenextsolarmaximum.Whatsspecialaboutthislatestcycleisthatthesunishavingtroublestartingthenextsolarcycle.Thesunbegantocalmdowninlate2007,sonooneexpectedmanysunspotsin2008.Theyshouldreturnin2010.Scientistshavepredictedthatthenextsolarcyclecouldbethemostactiveonrecord:moresunspotsandmoresolarstorms.However,sunspotsaremostlymissingnowSincetheearthisinclosecontactwiththesun,strongsolaractivitiescanbringtroubletoourlife.Peopleofthe21stcenturyrelyonhigh-techsystemsforthebasicsofdailylife.Airtravelandradiocommunicationscanbeaffectedbystrongsolaractivities.Abigsolarstormcouldcause20timesmoreeconomicdamagethanHurricaneKatrina.Whatthesunwilldonextisbeyondourabilitytopredict.Mostastronomersthinkthatthesolarcyclewillgoonbutatlowlevel.However,thereisalsoevidencethatthesunislosingitsabilitytoproducesunspots.By2015,theycouldbegonealtogether.4. Thesunwatchersfeelsurprisedatthelongestsunspots1absenceB.thelargestsunspotnumberC.themalfunctionofelectronicdevicesD.theseriousdamagebysunspotsWhatdoestheunderlinedword“crescendo”inParagraph3mostprobablymean?A.smallnumberB.highlevelC.usualcycleD.freshstart5. Whichstatementdoesthetextleadyoutobelieve?A. SolaractivitiesdonoharmtoourdailylifeHurricaneKatrinaisalsoatypeofsolarstormsB. Itsdifficulttopredictsunspots.C. Fromnowonthererenosunspots.【答案】ABC【解析】本文是说明文，介绍了与太阳活动周期、太阳黑子与其对人类影响等相关知识。5. 细节理解题。根据第二自然段“Forthepasttwoyears,sunspotshavemostlybeenmissing.Theirabsence,thelongestinnearly100years,hastakenevensunwatchersbysurprise在过去的两年里，太阳黑子大部分都消失To这是近100年来太阳消失时间最长的一次，连太阳观测者都感到意外）”可知，太阳观测者感到意外的是太阳黑子长时间的消失。故选A项。6. 词句猜测题。根据三第自然段Withinayear,sunspotsandsolarstormsbegintobuildtowardanewcrescendothenextsolarmaximum.（在一年之内，太阳黑子和太阳风暴开始形成一个新的crescendo下一个高峰期）”中破折号（表解释说明）可知，thenextsolarmaximum（下一个太阳活动高峰期）是对crescendo的解释，所以crescendo就是指“高峰期，顶点”。故选B项。7. 推理判断题。根据第六自然段中Whatthesunw川donextisbeyondourabilitytopredict.（太阳接下来要做什么超出了我们的预测能力）”和下文天文学家对solarcycle的不同预测可推知，太阳黑子是很难预测的。故选C项。3ScientistswhostudytheSunwatchforsunspots一violentstormsthatcanaffectcommunications,navigationsystemsandevenelectricpowerstationsontheEarth.SunspotsareaproductofhugeelectromagneticstormsontheSun.ScientistsontheEarthareabletoobservesunspotseightminutesaftertheyhappen.ThatishowlongittakesfbrtheSunslighttoreachus.Thefirstelectricallychargedparticles（颗粒）fromasunspotentertheEarthsatmosphereabout20to30minutesafterthestormhappens.Theseparticlescanharmhumanbeings.Sobeforetheyarrive,astronautsontheInternationalSpaceStationmoveintospecialareasdesignedtoprotectthemfromtheireffects.Aboutadayortwolater,thebiggestpartofthestormarrives.Itiscalledacoronalmassejection.ThatisbillionsoftonsofsolarmaterialthafsblownawayfromtheSun.Itstravelingmillionsofkilometersanhour,butthatisrelativelyslow.saysAlexYoung,theAssociateDirectorforScienceatNASAsHeliophysicsScienceDivision.SeveralciviliangovernmentagenciesandtheU.S.AirForcewatchweatherconditionsinspace24hoursaday.NASAdoessobecauseitmustprotectitsastronautsandtheelectronicdevicesonitsspacecraft.Scientistsarealsotryingtounderstandwhythenumberofsunspotsrisesandfallsatalmostregularintervalsevery11years.Inotherwords,scientistscanalmostpredicttheamountofsolaractivity.Sometimestheintensity（弓虽度）ishigher,sometimeslower,Forexample,thecurrentsolarcycle,asitiscalled,ismuchlowerthanthepreviousone.SeveralsatelliteswatchtheSunandtheenvironmentbetweentheSunandthoEarth.PicturesandotherinformationfromthesatellitestellscientistswhatishappeningonandneartheSun.AlexYoungsayswehaveonlybeenlookingattheSunwithpowerfulinstrumentsforabout30to40years.Thatisaveryshorttimecomparedtothefourbillionyearsthatthestarhasbeenshining.8. WhydoastronautsonInternationalSpaceStationmoveintospecialarea?D. Toprotectdevicesonthespacecraft.10. WhatenablesscientiststowatchtheSun?A.Theroleofsatellites.11. Whatdoesthepassagemainlytalkabout?C. Communicationontheearth.【答案】ACCB【解析】本文是一篇说明文，介绍了太阳黑子活动及其对地球的影响。6. 细节理解题。由第三段可知，太阳黑子活动时发出的带电蜘粒,对人类有危害，由本段中的“Sobeforetheyarrive,astronautsontheInternationalSpaceStationmoveintospecialareasdesignedtoprotectthemfromtheireffects.所以在他们到达之前，国际空间站的宇航员会进入特殊区域，以保护他们免受影响。可知，为了让宇航员免受带电粒子之苦，国际空间站的宇航员会进入特殊区域。选项A符合题意。故选A项。7. 细节理解题。由文中倒数第三段第一句Scientistsarealsotryingtounderstandwhythenumberofsunspotsrisesandfallsatalmostregularintervalsevery11years.科学家们也在试图了解为什么太阳黑子的数量几乎每11年会有定期的升降。可知，太阳黑子的活动周期是11年，选项C符合题意。故选C项。8. 细节理解题。由最后一段中的第一句AlexYoungsayswehaveonlybeenlookingattheSunwithpowerfulinstrumentsforabout30to40years.AlexYoung说我们用强大的仪器，观测太阳已经有30到40年了。可知，科学家们利用功能强大的仪器设备观测太阳，选项C符合题意。故选C项。9. 主旨大意题。根据完整第一段ScientistswhostudytheSunwatchforsunspots一violentstormsthatcanaffectcommunications,navigationsystemsandevenelectricpowerstationsontheEarth.”及全文内容可矢口，本文主要介绍的有关太阳黑子活动的一些发现，选项B符合题意。故选B项。Marswasoncewet,withanoceansworthofwateronitssurface.Today,mostofMarsisasdryasadesertexceptforicedepositsinitspolarregions.Wheredidtherestofthewatergo?Someofitdisappearedintospace.Watermolecules,beatenbyparticlesofsolarwind,brokeapartintohydrogenandoxygenatoms,andthose,especiallythelighterhydrogenatoms,spedoutoftheatmosphere,losttoouterspace.Butmostofthewater,anewstudyconcludes,wentdown,suckedintotheredplanetsrocks.Andthereitremains,trappedwithinmineralsandsalts.Indeed,asmuchas99%ofthewaterthatonceflowedonMarscouldstillbethere,theresearchersestimatedinapaperpublishedthisweekinthejournalScience.BethanyEhlmann,aprofessorofplanetaryscienceattheCaliforniaInstituteofTechnologyandoneoftheauthorsofthepaper,saidthatastherocksarealteredbyliquidwater,watermoleculesbecomeincorporated（并入）intomineralslikeclays.ThedataandsimulationsindicatedthatthewateronMarswasalmostallgoneby3billionyearsago,aroundthetuneonEarthwhenlifeconsistedofsingle-cellmicrobesintheoceans.Withoutatimemachine,thereisnowaytoobservedirectlyhowmuchwaterwasonayoungerMarsmorethan3billionyearsago.ButthehydrogenatomsfloatingtodayintheatmosphereofMarspreserveaghostlyhintoftheancientocean.OnEarth,about1in5,000hydrogenatomsisaversionknownasdeuterium（重氢;氢的同位素）thatistwiceasheavybecauseitsnucleuscontainsbothaneutronandaproton.ButonMars,theconcentrationofdeuteriumismarkedlyhigher,about1in700.ScientistsattheNASAGoddardSpaceFlightCenterwhoreportedthisfindingin2015saidthiscouldbeusedtocalculatetheamountofwaterMarsoncehad.10. Whycan*twaterbefoundonMarsnowexceptforicedepositsinpolarregions?A. Becauseitwastransformedintodeuterium.B. Becauseitwasbeatenintoparticlesbysolarwind.C. Becausemostofitwasintegratedandsomedisappeared.D. Becauseitbrokedownintohydrogenandoxygenatoms.11. Whatisimpliedaboutdeuteriuminthelastparagraph?A. Itistwicetheweightofhydrogen.B. Itsnucleuscontainsaneutronandaproton.C. ItsconcentrationonEarthismarkedlyhigherthanonMarsItenlightensscientistsonthemeasurementofwateronMars.12. Inwhichsectionofanewspapermaythisarticleappear?A. Science.B.Travel.C.Entertainment.D.Education.13. Whatcanbeasuitabletitleforthetext?A. Mars:OnceWet,NowDryAtoms:HydrogenorDeuterium?B. Microbes:Single-cellorMulti-cell?C. WaterVanished:ThisMightBeWhereItWent【答案】CDAD【解析】这是一篇说明文。主要说明了火星上消失的水一部分可能消失了，大部分可能沉入了火星的红色岩石中。12. 细节理解题。根据第二段“Someofitdisappearedintospace.（一些水消失在太空中。）”和第三段Butmostofthewater,anewstudyconcludes,wentdown,suckedintotheredplanetsrocks.（但一项新的研究表明，大部分的水都沉入了火星的岩石中。）”可知原因是一部分消失了，大部分集合在岩石中。故选C。13. 细节理解题。根据最后一段ScientistsattheNASAGoddardSpaceFlightCenterwhoreportedthisfindingin2015saidthiscouldbeusedtocalculatetheamountofwaterMarsoncehad.（美国宇航局戈达德太空飞行中心的科学家在2015年报告了这一发现，称这可以用来计算火星曾经拥有的水的数量。）”可知，宽激发了科学家关于火星的水的测量。故选D。14. 推理判断题。阅读可知这是一篇科普类说明文，因此推测可能出现在报纸的科学板块。故选A。15. 主旨大意题。通读全文以及根据第三段Butmostofthewater,anewstudyconcludes,wentdown,suckedintotheredplanetsrocks.（但一项新的研究表明，大部分的水都沉入了火星的岩石中。）”可知，本文主要讲述了火星消失的水可能在哪里，ABC三个选项太片面。故选D。5The2012LondonOlympicshadenoughproblemstoworryabout.Butonemorehasjustbeenadded-acommunicationsblackoutcausedbysolarstorms.AfteraperiodofcalmwithintheSun,scientistshavedetectedthesignsofafleshcycleofsunspotsthatcouldpeakin2012,justintimeforthearrivaloftheOlympictorchinLondon.NowscientistsbelievethatthispeakcouldresultinvastsolarexplosionsthatcouldthrowbillionsoftonsofchargedmattertowardstheEarth,causingstrongsolarstormsthatcouldjamthetelecommunicationssatellitesandinteractlinkssendingfiveOlympicbroadcastfromLondon.TheSunsactivityhasastronginfluenceontheEarth.TheOlympicscouldbeinthemiddleofthenextsolarmaximumwhichcouldaffectthefunctionsofcommunicationssatellites/saidProfessorRichardHarrison,headofspacephysicsattheRutherfordAppletonLaboratoryinOxfordshire.Atthepeakofthecycle,violentoutburstscalledcoronalmassejections（日冕物质抛射）occurintheSurfsatmosphere,throwingoutgreatquantitiesofelectrically-chargedmatter.Acoronalmassejectioncancarryabilliontonsofsolarmaterialintospaceatoveramillionkilometresperhour.Sucheventscanexposeastronautstoadeadlyamount,candisablesatellites,causepowerfailuresonEarthanddisturbcommunications/ProfessorHarrisonadded.Theriskisgreatestduringasolarmaximumwhenthereisthegreatestnumberofsunspots.NextweekinAmerica,NASAisscheduledtolaunchasatelliteformonitoringsolaractivitycalledtheSolarDynamicsObservatory（SDO）,whichwilltakeimagesoftheSunthatare10timesclearerthanthemostadvancedtelevisionsavailable.TheRutherfordAppletonLaboratoryhelpedtomakethehigh-techcamerasthatwillcaptureimagesofthesolarflares（太K日耀斑）andexplosionsastheyoccur.ProfessorRichardHoldaway,thelabsdirector,saidthattheSDOshouldbeabletoprovideearlywarningofasolarflareorexplosionbigenoughtoaffectsatellitecommunicationsonEarthIfwehaveadvancewarning,wellbeabletoreducethedamage.Whatyoudontwantisthingsswitchingoffforaweekwithnoideaofwhatscausedtheproblem/*hesaid.16. Thephrasecommunicationsblackout1inparagraph1mostprobablyreferstoduringthe2012Olympics.A. theextinguishingoftheOlympictorchthecollapseofbroadcastingsystemsB. thetransportationbreakdowninLondonthedestructionofweathersatellites17. Whatcanbeinferredaboutthesolaractivitydescribedinthepassage?A. ThemostfatalmatterfromthecoronafallsontoEarth.B. Thesolarstormpeakoccursinthemiddleofeachcycle.C. IttakesseveralsecondsforthechargedmattertoreachEarth.D. Thenumberofsunspotsdeclinesaftercoronalmassejections.18. Accordingtothepassage,NASAwilllaunchasatelliteto.A.takeimagesofthesolarsystemB.provideearlywarningofthunderstormsC.keeptrackofsolaractivitiesD.improvethecommunicationsonEarth19. Whichofthefollowingmightbethebesttitleofthepassage?A. SolarStorms:AnInvisibleKillerSolarStorms:EarthEnvironmentinDangerB. SolarStorms:ThreateningtheHumanRaceSolarStorms:HumanActivitiestoBeTroubled【答案】BDCD【解析】略6TheUnitedStatesspaceagencywillsendaspacecrafttoexplorethesunmorecloselythaneverbeforeonSaturday.NASASParkerSolarProbe（探测器）willflythroughthehotsolaratmosphereandcomewithinjust6millionkilometersofthesunssurface.TheParkerProbewillgetalmostseventimesclosertothesunthanearlierspacecraft.Todothis,itwillflypastVenus（金星）seventimesoversevenyears.Eachpasswillchangetheprobesorbitbyprovidingagravitypush.Itwillmoveeverclosertothesunandstraightintothecorona（日冕）,thesunsoutermostatmosphere.Byexploringthesunscorona,scientistshopetolearnwhyitishundredsoftimeshotterthanthesunssurface.Theywillalsostudywhatdrivesthesolarwind.Theprojectwasproposedin1958,thesameyearNASAwasestablished.Now,itsbecomingareality,saidprojectmanagerAndyDriesman.TheParkerspacecrafthasa2.4meterheatshield（护罩）thatis11centimetersthick.Itismadeoftwocarbonsheets.Thefronthasawhitecoatingtoreflectsunlight.Itisexpectedtoshineredwhenitexperiencestheextremesolarheat.Almosteverythingonthespacecraftwillbebehindthisshieldtokeepitsscientificinstrumentsrelativelycool.Besides,thespacecraftwillalsobetravelingatahighspeed.Theprobewillreach690,000kilometersperhourinthecorona.ThespacecraftwillmakeitsfirstflightpastVenusinearlyOctober.ItsfirstpassbythesunisexpectedinNovember.TheParkerSolarProbeisthefirstNASAspacecrafttobenamedaftersomeonewhoisstillalive.EugeneParkerisa91-year-oldprofessorattheUniversityofChicago.Hepredictedtheexistenceofsolarwind60yearsago.HeplanstobeatCapeCanaveralAirForceStationinthesouthernstateofFloridatoseethelaunch.20. WhatstheadvantageoftheParkerProbecomparedtotheearlierones?A. Itcanchangetheorbitbyflyingpastthesun.B. Itcangetclosertothesunandintothecorona.C. Itcanstudytheeffectofsolarwind.D. Itcanflythroughthehotsolaratmospherewithoutprotection.21. Whatcanbeinferredfromthepassage?A. Humanhadlittleachievementsinexploringthesun.B. EugeneParkeristhefirstonetostudythesun.C. TheParkerProbehastogetclosetothesunwiththehelpofVenus.D. Humancangetclosetothesun*ssurfacewithin6millionkilometerstoday.22. WhatcanwelearnaboutEugeneParker?A.HestartedNASA.B.Heforesawthesolarwindwhenhewas31.C. HedesignedtheParkerspacecraft.D. HewillstudythesunusingtheParkerspacecraft.23. Judgingfromthecontent,thepassagemostprobablybelongsto.A.astorybookB.anadvertisementC.asciencefictionD.anewsreport【答案】BCBD【解析】这是一则新闻报道。文章报道了美国航天局将发射一艘宇宙飞船，比以往任何时候都更近距离地探索太阳。该飞船被命名为帕克太阳探测器，将穿越炎热的太阳大气和仅仅600万公里的太阳表面。20. 细节理解题。根据第二段的TheParkerProbewillgetalmostseventimesclosertothesunthanearlierspacecraft.帕克探测器将比早期航天器接近太阳近7倍。可知，和之前的探测器相比，帕克探测器更接近于太阳。故选B。21. 推理判断题。根据第二段的Todothis,itwillflypastVenus（金星）seventimesoversevenyears.Eachpasswillchangetheprobe*sorbitbyprovidingagravitypush.Itwillmoveeverclosertothesunandstraightintothecorona（H冕）.为了做到这一点，它将在7年中飞过金星7次。每次通过都会提供重力推动，改变探测器的轨道。它会越来越靠近太阳，直接进入日冕。可知，飞船要接近太阳必须依靠进行提供的动力，即帕克探测器必须在金星的帮助下接近太阳。故选C。22. 细节理解题。根据EugeneParkerisa91-year-oldprofessorattheUniversityofChicago.Hepredictedtheexistenceofsolarwind60yearsago.尤金帕克是芝加哥大学91岁的教授。他在60年前就预言了太阳风的存C.Whyscientistsstudythesun.D.Thedistanceofthesunfromtheplanets.3. AllofthefollowingarepartsofthesunsatmosphereEXCEPTthe.A.coronaB.chromosphereC.photosphereD.core4. Theparagraphfollowingthepassagemostlikelydiscusseswhichofthefollowing?A. Theremaininglayersofthesun.B. Theevolutionofthesuntoitspresentform.C. TheeclipseofFebruary1979.D. Scientistswillcostmoremoneyonresearchingthecorona.2Ifyourcellphonesuddenlystopsworking,dontblametheserviceprovider.Themalfunction（故障）mighthavebeencausedbysomethingbiggerasolarstorm.Expertsexpectthattheearthwillseemoresolaractivitiesinthenearfuture.Themalfunctionofelectronicdevicesisjustoneoftheeffects.Sunspots（太阳黑子）serveasanindicator（标志）ofthesunsactivity.Forthepasttwoyears,sunspotshavemostlybeenmissing.Theirabsence,thelongestinnearly100years,hastakenevensunwatchersbysurprise.Whenthenumberofsunspotsdropsattheendofeach11-yearcycle,solarstormsdiedownandallbecomemuchcalmer.Thissolarminimumndoesnttlastlong.Withinayear,sunspotsandsolarstormsbegintobuildtowardanewcrescendothenextsolarmaximum.Whatsspecialaboutthislatestcycleisthatthesunishavingtroublestartingthenextsolarcycle.Thesunbegantocalmdowninlate2007,sonooneexpectedmanysunspotsin2008.Theyshouldreturnin2010.Scientistshavepredictedthatthenextsolarcyclecouldbethemostactiveonrecord:moresunspotsandmoresolarstorms.However,sunspotsaremostlymissingnowSincetheearthisinclosecontactwitht
展开阅读全文