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时间:2019-11-15
《2019-2020年高考英语二轮复习 阅读理解基础选练(3)》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、2019-2020年高考英语二轮复习阅读理解基础选练(3)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。Lastweek,weexplainedthattheplanetMarshaspassed“opposition.”ItpassedapointoppositetheSun.Thisweek,wetellabouttheplanet’ssurprisingmotion(运动)amongthestars.Forthousandsofyears,peoplehaverecognizedth
2、atplanetstravelamongthestars.TheplanetsgenerallyfollowthepathtakenbytheSunthroughthesky.TheSun’spathiscalledtheecliptic.ThegroupsofstarsalongtheeclipticarecalledtheZodiac.Themotionoftheplanetscanbeconfusingattimes.EveryoneknowstheSunrisesintheeastandsetsinthe
3、west.ButthisiscausedbytheturningmotionoftheEarth.Planetsgenerallymovefromwesttoeast.However,Marswillappeartomovebackwardforabouttwomonthsthisyear.ThishappensbecausetheEarthisovertakingMarsonitswayaroundtheSun.Marsbeganitsbackward,orwestward,motiononMay11th,It
4、willstartmovingeastwardagainonJuly19th.Mars’apparentmotionhasbeenamysterytoastronomersforhundredsofyears.MostearlytheoriesofthesolarsystemarguedthattheSunandplanetsturnedaroundtheEarth.ButthesuddenwestwardmotionofMarspresentedaproblem.WhywouldMarsmovewestfort
5、womonthswhenitnears“opposition”?In1543,aPolishchurchworkernamedNicolasCopernicuspublishedadifferenttheory.HistheorysaidtheEarthandplanetsmovedaroundtheSuninperfectlycircularorbits.Copernicus’theorywassimpler.ButhisSun–centeredsystemstilldidnotexplaintheobserv
6、edmotionofMarsverywell.Finally,aGermanmathematiciannamedJohannesKeplerpublishedapletetheoryofthemotionoftheplanetsin1619.HehadcarefullystudiedthemotionofMarsformanyyears.JohannesKeplerdiscoveredthattheplanetsdonotmoveincircularorbitsaroundthesun.Instead,theyt
7、ravelinflattenedorbitscalledellipses.Mars’ellipticalorbitisthecauseofitsunusualbrighteningthisyearanditsapparentlargesize.Duringthenextseveralweeks,youcanseeforyourselfwhythemysteriousmotionofMarshascausedsomanypeopletowonder.63.Fromthepassagewecanlearnthat.A
8、.thesunandplanetsgenerallytravelwestwardB.Keplerstudiedtheorbitoftheplanetsin1619C.Copernicus’theorywellexplainedthemotionofMarsD.theEarth’sturningmotioncausesthesuntoriseintheeast64.OnJu
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