英语翻译
Blueplanets?Spaceisnotblack,butlightgreen,ateamofastronomersannouncedonJanuary10.Theystudiedthelightsentoutby200,000galaxies.Whattheyfoundwasthattheaveragecolouroftheuniverseisabitgreenerthanturquoise.
Thediscoverywaspartofanattempttotesttheoriesabouthowstarsandgalaxiesform.Mostastronomersbelievethattheuniverseprobablystartedwitha“blueperiod”whenyoungbluestarsfilledspace.Nowtheuniverseisina“greenperiod”.Theybelieveitwillfinallyentera“redperiod”whentheolder,redderstarsappear.
“Thereasonforthecolourchangingisthattherateofstarsformingischanging,saidIvanBaldry,anastronomerwhoworkedtofindtheaveragecolouroflightintheuniverse.
ResearchpresentedbyNASAscientistsshowsthatthehighestpointofstar-formingmayhaveoccurredearlierthanpreviouslybelieved.Itwasprobablyverysoonafterthe“BigBang”thatmanyscientistsbelievegavebirthtotheuniverse.
Thereisnowayanyhumancouldactuallyseethegreencolour.
“Theonlywaytoseeitisifyousawalltheuniversefromthesamedistanceawayanditwasnotmoving,Baldrysaid.Baldryandhisco-worker,KarlGlaze-brook,havebothjokedaboutpossiblemarketingopportunitiesforthenewcolour.
Perhapscolour-of-the-universeT-shirtsorcoffeecupscouldbecomepopular.ButBaldryallowed,“Idon'tknowifyoucanpatentacolour,that'snotourbusiness.Wehaven'tactuallybeentoapaintshopyettoseeiftheyhaveanameforthis.
1.Theastronomentsdiscoveredthecoloroftheuniverse____
a.whentheywereresearchingontheageoftheuniverse)
b.whentheyattemptedtotesttheoriesabouttheformingofstarsandgalaxies
c.toimprovethattheuniverseiscontinuouslychanging
d.andshowedthatthestarsandgalaxiesmighthaveformedearlierthanpreviouslybelieved
2.accordingtotheastronomers,____
a.theuniverseischangeitscolorallthetime
b.alltheheavenlybodiesaregreenatpresent
c.theuniversehaschangeditscolorseveraltimes
d.theuniversewillfinallyturnred
选B,D2题其他项错在哪?