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1、2019年高考英语一轮复习精品资料第一节阅读理解AAbout1.3billionyearsago,twomassiveblackholeshiteachotherandformedanewone.Theenergysetfreebythecollisioncreatedaripple(波纹)inthespacetimestructureandspreadoutwardingravitationalwaves(引力波)．Then,onSeptember14,2015,agroupofscientistsdiscov
2、eredthewaves.OnFebruary11,anannouncementcamefromtheLaserInterferometerGravitationalWaveObservatory(LIGO)intheUSthat,fortheveryfirsttime,agravitationalwavewasdirectlyobservedandrecorded.“Wediscoveredgravitationalwaves.Wedidit，”DavidReitze,thedirectorofLIGO,sai
3、dinthepressconferenceonFebruary11.“It'sexactlywhatEinstein'stheoryofgeneralrelativitypredicted.”Einstein's1915theoryreimaginedtheframeworkfortheuniverse.AccordingtoEinstein,theframeworkfortheuniverse—orthespacetimestructure—isnotfixed，Butchangedbymatterandene
4、rgy“inawayaheavysleepercausesamattresstosag(床垫下凹),producingtheeffectwecallgravity”，explainsaNewYorkTimesarticle.“Adisturbanceintheuniversecouldcausespacetimetobecomelarger,breakintopiecesandevenmoveupanddown,likeamattressshakingwhenthatsleeperrollsover,produc
5、ingripplesofgravity:gravitationalwaves，”explainsthearticle.Comparedwiththeotherthreeforcesintheuniverse(electromagnetism,theweaknuclearforceandthestrongnuclearforce),gravityisrelativelyweak,makinggravitationalwaveshardtodiscover.ThediscoverybyLIGOwouldopenane
6、wchapterinastronomy.“Everythingelseinastronomyisliketheeye，”SzabolcsMarka,aColumbiaUniversityprofessor,toldTheNewYorkTimes.“Finally,astronomygrewears.Weneverhadearsbefore.”篇章导读：本文是一篇说明文。文中讲述了引力波的发现证实了1915年爱因斯坦的预测，这为人类更好地研究宇宙提供了可能。1．Whatisagravitationalwaveacc
7、ordingtothetext?A．It'sadisturbanceintheuniverse.B．It'sthecrashofthetwoblackholes.C．It'sarippleinthespacetimestructure.D．It'saneffectcausedbyenergy.答案：C细节理解题。根据文章第一段第二句“Theenergysetfreebythecollisioncreatedarippleinthespacetimestructureandspreadoutwardingravit
8、ationalwaves.”可知，引力波就是在时空结构中产生的波纹。故选C项。2．WhyisthediscoverybyLIGOimportant?A．ItprovesEinstein's1915theory.B．Thewaveswerehardtodiscover.C．Thewaveschangedtheuniverse.D．Itreshapesthespacetime
