Ifyouknewabottleofwaterhadbeenrecycledfromurine(尿)wouldyoudrinkit?AstronautsattheInternationalSpaceStation(ISS)maysoondoso.NASA(美国航空航天局)saiditwoulduseahigh-techmachine(高科技机器)torecycl
Ifyouknewabottleofwaterhadbeenrecycledfromurine(尿)wouldyoudrinkit?AstronautsattheInternationalSpaceStation(ISS)maysoondoso. NASA(美国航空航天局)saiditwoulduseahigh-techmachine(高科技机器)torecyclewastewaterattheISS.Themachinewillrecycleeverythingfromsweat(汗)thewaterforwashinghandsshowerwaterwaterusedforbrushingteethandevenurinetomakedrinkingwater.
ItwillsaveNASAmillionsofdollarseachyear.AtpresenteachISSastronautusesabout4.4liters(升)ofwatereveryday.Itcostsabout$24millionayeartotransportwateruptoISS.NASAsaysthataliterofwatercostsabout$11000.
ThemachinewillbesenttotheISSinOctober2008.NASAhopesitwillrecycleabout93%ofallwaterusedonthestation. Willthewaterbeclean?Scientistssaythewastewaterwillgothroughaverycomplicatedprocess(复杂的过程).Forexampledifferentchemicalswillbeputinthewastewater;thewaterwillbeheatedto130℃togetridofbacteria(细菌).Therecycledwateristhousandsoftimesbetterthanthewaterfromacitytapscientistssay.
1.NASAwilluseahigh-techmachinetorecyclewastewaterattheISSto__________.
A.protecttheISS
B.makeastronautsatISSworkharder
C.providebetterwaterandfoodforISSastronauts
D.savethecostoftransportingwateruptotheISS
2.AtpresentitcostsNASAabout______dollarstotransportwateruptoanastronautattheISSaday.
A.4.4thousandB.11thousand
C.48.4thousand D.24million
3.Scientistsplantogetridofbacteriainthewastewaterby______.
A.freezing B.heating
C.shaking D.precipitating(沉淀)
4.Thereadingmainlytellsussomethingabout______.
A.waterrecycling B.theInternationalSpaceStation
C.ahigh-techmachine D.thecostofNASA
5.Whichofthefollowingsentencesistrueaccordingtothepassage?
A.Therecycledwaterismuchbetterthanthatfromacitytap.
B.Thehigh-techmachinewillrecycleallthewaterusedonthestation.
C.AtpresenteachISSastronautusesmorewaterthanthepeoplelivingontheearth.
D.Thehigh-techmachinecanonlyrecycleurinetomakewate