英语阅读题EverybodyusesA.M.andP.M.t-查字典问答网
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  英语阅读题EverybodyusesA.M.andP.M.tomeanbeforenoonandafternoon.Butdoyouknowexactlywhattheymeanandhowtheycameintobeing?Weknowthattheturningoftheearthmakesthesunandstarsseemtomoveacrossthesky.Daylight,ofcou

  英语阅读题

  EverybodyusesA.M.andP.M.tomeanbeforenoonandafternoon.Butdoyouknowexactlywhattheymeanandhowtheycameintobeing?

  Weknowthattheturningoftheearthmakesthesunandstarsseemtomoveacrossthesky.Daylight,ofcourse,beginswiththesunrisingintheeastandendwiththesunsettinginthewest.Beinghighinthesky,betweenthesetwopositions,thesunhastraveledaquarterjourney,andhalfofthedaylighthourshavebeenspent.

  Therefore,bynoticingwherethesunstoodinthesky,earlymanlearnedhowtotellthetimeoftheday.Atnight,thestars,wereobserved.Hecouldalsoknowthetime.

  Theimportantthinginkeepingtimeistoknowtheexactmomentofnoon.Foreachofus,whereverweare,nooniswhenthesunisdirectlyoverhead.Thinkofanimaginaryline,ameridian(子午线)drawnacrossthesky,goingfromthenorthpointofyourhorizondowntothesouthpoint.

  Whenthesuncrossesyourmeridian,itisnoonforyou.Whenthesunstillliestotheeastofyourmeridian,itismorning.Afterthesunhascrossedthismeridian,itisafternoon.

  TheLatinwordfor"midday"ismeridiem,fromwhichcomesourwordantemeridiem,whoseshortformisA.M.,whichmeansbeforemidday.P.M.istheshortformforpostmeridian,meaningaftermidday.

  66.TheEnglishword"meridian"means______.

  A)P.M.inLatin

  B)PostmeridieminLatin

  C)antemeridieminLatin

  D)meridieminLatin

  67.Earlymanlearnedhowtotellthetimeoftheday______.

  A)byobservingthepositionsthestarsexistinthesky

  B)bydrawingameridianacrossthesky

  C)bynoticingwherethesunstoodinthesky

  D)byknowingtheexactmomentofnoon

  68.Whichofthefollowingistrueaccordingtothepassage?

  A)P.M.istheshortformforpostmeridieminLatinstandingfor"inEnglish".

  B)A.M.meansbeforenooninEnglishandantemeridieminLatin.

  C)Daylightbeginswiththesunrisinginthewestandendswiththesunsettingintheeast.

  D)MeridieminLatincomesfromourwordmeridian.

  69.Itistheexactmomentofnoon_____.

  A)thatthesuncrossestheimaginaryline

  B)whenthesunstillliestotheeastofth

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2020-06-09 13:58
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  dcbac

2020-06-09 14:03:09

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