2015职称英语阅读翻译理工7-9

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1、7、SugarPowerforCellPhonesUsingenzymescommonlyfoundinlivingcells，anewtypeoffuelcellproducessmallamountsofelectricityfromsugar.Ifthetechnologyisabletosucceedinmassproduction，youmaysomedayshareyoursweetdrinkswithyourcellphone.　　Infuelcells，chemicalreactionsgenerateelectricalcurrents.Thepr

2、ocessusuallyreliesonpreciousmetals，suchasplatinum.Inlivingcells，enzymesperformasimilarjob，breakingdownsugarstoobtainelectronsandproduceenergy.　　Whenresearcherspreviouslyusedenzymesinfuelcells，theyhadtroublekeepingthemactive，saysShelleyD.MinteerofStLouisUniversity1.Whereasbiologicalcell

3、scontinuallyproducefreshenzymes，there’snomechanisminfuelcellstoreplaceenzymesastheyquicklydegrade.　　MinteerandTamaraKlotzbach，alsoofStLouisUniversity，havenowdevelopedpolymersthatwraparoundanenzymeandpreserveitinamicroscopicpocket.“Wetailorthesepocketstoprovidetheidealmicroenvironment”f

4、ortheenzyme，Minteersays.Thepolymerskeeptheenzymeactiveformonthsinsteadofdays.　　InthenewfuelCell，tinypolymerbagsofenzymeareembeddedinamembranethatcoatsoneoftheelectrodes.Whenglucosefromasugaryliquidgetsintoapocket，theenzymeoxidizesit，releasingelectronsandprotons.Theelectronscrossthememb

5、raneandenterawirethroughwhichtheytraveltotheotherelectrode，wheretheyreactwith.oxygenintheatmospheretoproducewater.Theflowofelectronsthroughthewireconstitutesanelectricalcurrentthatcangeneratepower.　　Sofar，thenewfuelcellsdon’tproducemuchpower，butthefactthattheyworkatallisexciting，saysPa

6、ulKenis，achemicalengineerattheUniversityofIllinois2atUrhana-Champaign3.“Justgettingittowork.”Kenissays，“isamajoraccomplishment.”　　Sugar-eatingfuelcellscouldbeanefficientwaytomakeelectricity.Sugariseasytofind.Andthenewfuelcellsthatrunonitarebiodegradable，sothetechnologywouldn’thurttheen

7、vironment.Thescientistsarenowtryingtousedifferentenzymesthatwillgetmorepowerfromsugar.Theypredictthatpopularproductsmaybeusingthenewtechnologyinaslittleas3years.　　词汇：　　enzyme/5enzaIm/n.酶electrode/I5lektrEJd/n.电极platinum/5plAtinEm/n.铂，白金membrane/5membrein/n.膜，薄膜　　electron/I5lektrRn/n.