*第三十四篇BatteriesBuiltbyVirusesWhatdochickenpox，thecommoncold,theflu，andAIDShaveincommon?They’realldiseasecausedbyviruses，tinymicroorganismsthatcanpassfrompersontoperson．It'snowonder1thatwhenmostpeoplethinkaboutviruses,findingwayst0steerclearof2virusesiswhat'sonpeople'sminds．Noteveryonerunsfromthetinydiseasecarders,though3．InCambridge,Massachusetts4,scientistshavediscoveredthatsomevirusescanbehelpfulinanunusualway．Theyareputtingvirusestowork,teachingthemtobuildsomeoftheworld'ssmallestrechargeablebatteries．Virusesandbatteriesmayseemlikeanunusualpair，butthey'renotsostrangeforengineerAngelaBelcher，whofirstcameupwith5theidea．AttheMassachusettsInstituteofTechnology(MIT)inCambridge,sheandhercollaboratorsbringtogetherdifferentareasofscienceinnewways．Inthecaseofthevirus-builtbatteries,thescientistscombinewhattheyknowaboutbiology,technologyandproductiontechniques．Belcher'steamincludesPaulaHammond，whohelpsputtogetherthetinybatteries,andYet-MingChiang，anexpertonhowtostoreenergyintheformofabattery．“We’reworkingonthingswetraditionallydon’tassociatewithnature．”saysHammond．Manybatteriesarealreadyprettysmall．YoucanholdA．CandDbatteries6inyourhand．Thecoin—likebatteriesthatpowerwatchesareoftensmallerthanapenny．However。everyyear，newelectronicdeviceslikepersonalmusicplayersorcellphonesgetsmallerthantheyearbefore．Asthesedevicesshrink,ordinarybatterieswon'tbesmallenoughtofitinside．Theidealbatterywillstorealotofenergyinasmallpackage．Rightnow，Belcher'smodelbattery，ametallicdiskcompletelybuiltbyviruses，lookslikearegularwatchbattery．Butinside，itscomponentsareverysmall—sotinyyoucanonlyseethemwithapowerfulmicroscope．Howsmallarethesebatteryparts?Togetsomeideaofthesize，pluckonehairfromyourhead．Placeyourhaironapieceofwhitepaperandtrytoseehowwideyourhairis—prettythin，right?Althoughthewidthofeachperson'shairisabitdifferent，youcouldprobablyfitaboutloofthesevirus—builtbatteryparts，sidetoside，acrossonehair．Thesemicrobatteriesmaychangethewaywelookatviruses7．词汇：chickenpox水痘microorganismn．微生物metallicadj．金属的collaboratorn．合作者，协作者pluckv．拔，摘，采注释：1．nowonder：不足为奇的，难怪2．steerclearof：避开，绕开3．though：意思为“然而，可是”。在句中使用时通常放在句末。4．Cambridge，Massachusetts：马萨诸塞州的剑桥市。本文第三段提到的theMassachusettsInstituteofTechnology(MIT)inCambridge即指坐落于剑桥市的麻省理工学院。麻省理工学院于1861年由著名自然科学家威廉·巴罗吉杰斯创立。这是美国的一所私立研究型大学，培养高级科技人才和管理人才，是以理工科为主的、世界一流的综合性大学。5．cameupwith：提出6．A，CandDbatteries：A、C、D均为电池型号。7．Thesemicrobatteriesmaychangethewaywelookatviruses：这些微型电池可能会改变我们看待病毒的方式。作者想表达的意思是：人们一直认为病毒有害无益，现在病毒可用来制作电池，人们对病毒的看法可能会因此而发生变化。练习：1．Accordingtothefirstparagraph，peopletrytoA．killmicroorganismsrelatedtochickenpox，theflu，etc．B．keepthemselvesawayfromvirusesbecausetheyareinvisible．C．stayawayfromvirusesbecausetheyarecausesofvariousdiseases．D．curethemselvesofvirus—relateddiseasesbytakingmedicines．2．WhatisBelcher'steamdoingatpresent?A．Itisfindingwaystogetridofviruses．．B．Itismass—producingmicrobatteries．C．Itismakingbatterieswithviruses．D．Itisanalyzingvirusgenes．3．Whatexpressionbelowisoppositeinmeaningtotheword"shrink"appe...
