预览加载中，请您耐心等待几秒...

高考英语阅读理解专题训练答案含解析.pdf

预览
1/10
2/10
3/10
4/10
5/10
6/10
7/10
8/10
9/10
10/10

亲，该文档总共16页，到这已经超出免费预览范围，如果喜欢就直接下载吧～

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

⾼考英语阅读理解专题训练答案含解析 ⾼考英语阅读理解专题训练答案含解析 ⼀、⾼中英语阅读理解 1．阅读理解 Scientistshavediscovereda"monsterblackhole"somassivethat,intheory,itshouldn'texist.It'sastellarblackhole—the typethatformsafterstarsdie,collapse,andexplode.Researchershadpreviouslybelievedthatthesizelimitwasnomore than20timesthemassofoursunbecause8Sthesestarsdie,theylosemostoftheirmassthroughexplosionsthatexpel matterandgassweptawaybystellarwinds ThistheoryhasnowbeentoppledbyLB-1,thenewlydiscoveredblackhole.Locatedabout15.000lightyearsaway,ithasa mass70timesgreaterthanoursun,accordingtoapressreleasefromtheChineseAcademyofSciences. ThefindingswerepublishedbyChineseresearchersinthejournalNatureonWednesday. "Blackbolesofsuchmassshouldnotevenexistinourgalaxy,accordingtomostofthecurrentmodelsofstellarevolution," saidLiuJifeng,headoftheteamthatmadethediscovery."LB-1istwiceasmassiveaswhatwethoughtpossible.Now theoristswillhavetotakeupthechallengeofexplainingitsformation." ScientistsarenowscratchingtheirheadsathowLB-1gotsohuge. TheChineseteamhasproposedanumberoftheories.LB-1'sheersizesuggeststhatit"wasnotformedfromthecollapseof onlyonestar,"thestudysaid—instead,itcouldpotentiallybetwosmallerblackholesorbitingeachother. Anotherpossibilityisthatitformedfrom"fallbacksupermova."Thisiswhenasupernoma—thelaststageofanexplodingstar —ejectsmaterialduringtheexplosion,whichthenfallsbackintothesupernova,creatingablackhole. Thisfallbackformationistheoreticallypossiblebutscientistshaveneverbeenabletoproveorobserveit.IfthisishowLB-1 formed,thenwemayhave"directevidenceforthisprocess"forthefirsttime,thestudysaid. ThereareseveraltypesofblackholesandstellarblackholeslikeLB-1areonthesmallerside,accordingtoNASA. Supermassiveblackholesaremuchbigger—theycanbebillionsoftimesthemassofoursun, Scientistsbelievesupermassiveblackholesmaybeconnectedtotheformationofgalaxies,astheyoftenexistatthecenter ofthemassstarstemsbutitisstillnotclearexactlyhow,orwhichformfirst. （1）Whydoesthewriterwritethearticle? A.ToreportthegreatachievementChine