2014年职称英语考试试题：综合类阅读理解练习题15

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1、中华会计网校&职业培训教育网联合推出2014年职称英语考试试题：综合类阅读理解练习题（15）BatteriesBuiltbyVirusesWhatdochickenpox，thecommoncold,theflu，andAIDShaveincommon?They’realldiseasecausedbyviruses，tinymicroorganismsthatcanpassfrompersontoperson.It'snowonder1thatwhenmostpeoplethinkaboutviruses,findingwayst0st

2、eerclearof2virusesiswhat'sonpeople'sminds.Noteveryonerunsfromthetinydiseasecarders,though3.InCambridge,Massachusetts4,scientistshavediscoveredthatsomevirusescanbehelpfulinanunusualway.Theyareputtingvirusestowork,teachingthemtobuildsomeoftheworld'ssmallestrechargeablebatte

3、ries.Virusesandbatteriesmayseemlikeanunusualpair，butthey'renotsostrangeforengineerAngelaBelcher，whofirstcameupwith5theidea.AttheMassachusettsInstituteofTechnology(MIT)inCambridge,sheandhercollaboratorsbringtogetherdifferentareasofscienceinnewways.Inthecaseofthevirus-built

4、batteries,thescientistscombinewhattheyknowaboutbiology,technologyandproductiontechniques.Belcher'steamincludesPaulaHammond，whohelpsputtogetherthetinybatteries,andYet-MingChiang，anexpertonhowtostoreenergyintheformofabattery.“We’reworkingonthingswetraditionallydon’tassociat

5、ewithnature.”saysHammond.Manybatteriesarealreadyprettysmall.YoucanholdA.CandDbatteries6inyourhand.Thecoin—likebatteriesthatpowerwatchesareoftensmallerthanapenny.However。everyyear，newelectronicdeviceslikepersonalmusicplayersorcellphonesgetsmallerthantheyearbefore.Asthesede

6、vicesshrink,ordinarybatterieswon'tbesmallenoughtofitinside.Theidealbatterywillstorealotofenergyinasmallpackage.Rightnow，Belcher'smodelbattery，ametallicdiskcompletelybuiltbyviruses，lookslikearegularwatchbattery.Butinside，itscomponentsareverysmall—sotinyyoucanonlyseethemwit

7、hapowerfulmicroscope.Howsmallarethesebatteryparts?Togetsomeideaofthesize，pluckonehairfromyourhead.Placeyourhaironapieceofwhitepaperandtrytoseehowwideyourhairis—prettythin，right?Althoughthewidthofeachperson'shairisabitdifferent，youcouldprobably_____________________________

8、________________________________________[4]中华会计网校&职业培训教育网联合推出fitaboutloofthesevirus—builtbattery