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1、Unit3 InventorsandinventionsⅠ.阅读理解(2017重庆育才中学高三入学考试)Amachinethattakessweat-laden(浸满汗水的)clothesandturnsthesweatintodrinkingwaterisinuseinSweden.Themachinemakestheclothesturnroundquickly,heatsthemtoremovethesweat,andthenpassesthesteamthroughakindofspecialmaterialtomakepurifiedwater
2、.Sinceithasbeenbroughtintouse,itscreatorssaymorethan1000peoplehavedrunkothers’“sweat”inGothenburg.Theyaddtheliquidiscleanerthanlocaltapwater.ThedevicewasbuiltfortheUnitedNations’child-focusedcharityUNICEFtopromoteacampaignhighlightingthefactthat780millionpeopleintheworldlackacces
3、stocleanwater.ThemachinewasdesignedandbuiltbytheengineerAndreasHammar,knownlocallyforhisappearancesonTVtechshow“Mekatronik”.HesaidthekeypartofthesweatmachinewasanewwaterpurificationpartdevelopedbyacompanynamedHVR.“Itusesatechniquecalledmembranedistillation(膜蒸馏),”hetoldtheBBC.“Weu
4、seaspecialkindofmaterialthatonlyletssteamthroughbutkeepsbacteria,salts,clothingfibersandotherthingsout.TheyhavesomethingsimilartotheInternationalSpaceStation,butourmachineischeapertobuild.Theamountofwateritproducesdependsonhowsweatythepersonis,butoneperson’sT-shirttypicallyproduc
5、es10ml,aboutamouthful.”ThedevicehasbeenputonshowattheGothiaCup—theworld’slargestinternationalyouthfootballtournament.MattiasRonge,chiefexecutiveofStockholm-basedadvertisingagency7Deportivo,saidthemachinehadhelpedraiseawarenessofUNICEF,butinrealityhaditslimitations.“Peoplehaven’tp
6、roducedasmuchsweataswehoped—rightnowtheweatherinGothenburgislousy,”MattiasRongesaid.“Sowe’veequippedthemachinewithexercisebikesandvolunteersarecyclinglikecrazy.Evenso,thedemandforsweatisgreaterthanthesupply.Andthemachinewillneverbeproducedinlargenumbers,sincetherearebettersolutio
7、nsouttheresuchaswaterpurifyingpills.”1.Whichofthefollowingisthedisadvantageofthesweatmachine?A.Ittakestoolongforthemachinetoproducewater.B.Theamountofwaterthemachineproducesisratherlimited.C.Itcostsalargeamountofmoneytobuildthemachine.D.Thewaterprocessedbythemachineisnotcleanenou
8、gh.2.UNICEFismentionedinthetextto . A.
