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ID:21331301
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页数:6页
时间:2018-10-21
《astronauts aboard the space station celebrated a space first on wednesday阅读答案》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、AstronautsaboardthespacestationCelebratedaspacefirstonWednesday阅读答案 AstronautsaboardthespacestationCelebratedaspacefirstonWednesdaybydrinkingwaterthathadbeenrecycledfromtheirurineandsweatandwaterthatcondensesfromexhaledair.Theysaid“cheers”,clickeddrinkingbagsandtoaste
2、dNASAworkersonthegroundwhoweresippingtheirownversionofrecycleddrinkingwater. TherecyclingsystemisneededforastronautstationsonthemoonandMars.ItalsowillsaveNASAmoneybecauseitwon’thavetoshipupasmuchwatertothestationbyspaceshuttleorcargo,it’simportantasthespacestationisab
3、outtoexpandfromthreepeoplelivingonboardtosix. TherecyclingsystemhadbeenbroughtuptothespacestationlastNovemberbyspaceshuttleEndeavour,butitcouldn’tbeuseduntilsamplesweretestedbackonEarth.Sowhenitcametimetoactuallydrinkup,NASAmadeabigdealofit.Thethreemancrewstood,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
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