【英语翻译Blueplanets?Spaceisnotblack,butlightgreen,ateamofastronomersannouncedonJanuary10．Theystudiedthelightsentoutby200,000galaxies．Whattheyfoundwasthattheaveragecolouroftheuniverseisabitgreenerthanturq】
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?