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1、AstronautsaboardthespacestationCelebratedaspacefirstonWednesday阅读答案　　AstronautsaboardthespacestationCelebratedaspacefirstonWednesdaybydrinkingwaterthathadbeenrecycledfromtheirurineandsweatandwaterthatcondensesfromexhaledair.Theysaid“cheers”，clickeddrinkingbagsandtoaste

2、dNASAworkersonthegroundwhoweresippingtheirownversionofrecycleddrinkingwater.　　TherecyclingsystemisneededforastronautstationsonthemoonandMars.ItalsowillsaveNASAmoneybecauseitwon’thavetoshipupasmuchwatertothestationbyspaceshuttleorcargo,it’simportantasthespacestationisab

3、outtoexpandfromthreepeoplelivingonboardtosix.　　TherecyclingsystemhadbeenbroughtuptothespacestationlastNovemberbyspaceshuttleEndeavour,butitcouldn’tbeuseduntilsamplesweretestedbackonEarth.Sowhenitcametimetoactuallydrinkup,NASAmadeabigdealofit.Thethreemancrewstood,holdi

4、ngtheirdrinksandcongratulatedengineersintwoNASAcentersthatworkedonthesystem.　　“Thisissomethingthathadbeenthestuffofsciencefiction，”Barrattsaidbeforetakingasmallmouthful.“Thetasteisworthtrying.”　　NASAdeputyspaceshuttlemanagerLeRoyCaincalledit“ahugemilestone”．　　Thenewsys

5、temtakesthecombinedurineofthecrewfromthetoilet,movesittoabigtank,wherethewaterisboiledoff,andthevaporiscollected.Therestoftheurineisthrownaway.Thewatervaporismixedwithwaterfromaircondensation,andthenitgoesthroughfilters.Whensixcrewmembersareaboarditcanmakeaboutsixgallo

6、nsfromurineinaboutsixhours.　　“Somepeoplemayfindtheideaofdrinkingrecycledurinedistasteful,butitisalsodoneonEarthwithalotlongertimebetweenurineandthetap”saidMarybethEdeen,thespacestation’snationallabmanager.　　ThetechnologyNASAdevelopedforthissystemhasalreadybeenusedforqu

7、ickwaterpurificationafterthe2004Asiantsunami,Edeensaid.　　“Wearehappytohavethiswaterworkthroughthesystem—we’rehappytohaveitworkthroughoursystems，”Barrattsaid.　　[语篇解读]本文讲的是国际空间站宇航员试饮尿液循环水。　　1．Accordingtothetext,therecyclingsystemisimportantbecause________.　　A.itmakestrav

8、elingtothemoonforthecommonpersonpossible　　B.withitNASAwon’tneedtoshipanywateruptothespacestation　　C.itcanhelptomeetth