2012年职称英语考试理工C阅读理解

查字典英语网 2016年03月02日

      GraphenesSuperstrength1

      Bigtechnologycomesintinypackages. Newcellphonesandpersonalcomputersgetsmallereveryyear,whichmeanstheseelectronicsrequireevensmallercomponentsontheinside. Engineersarelookingforcreativewaystobuildthesecomponents,andtheyveturnedtheireyestographene,asuperthin2 material,madeofcarbon,thatcouldchangethefutureofelectronics.

      ThisyearsNobelPrizeforPhysics3 hasbeenawardedtoAndreGeimandKostyaNovoselov

      fromtheUniversityofManchester4,UK. forthediscoveryofgraphene. Grapheneisntjustsmall, itsthethinnestpossiblematerialinthisworld, saysNovoselov. Hecallsitawondermaterial. Itssothinthatyouwouldneedtostackabout 25,000 sheetsjusttomakeapileasthickasapieceofordinarywhitepaper. Ifyouweretoholdasheetofgrapheneinyourfingers5,youdhavenoideabecauseyouwouldntbeabletoseeit.

      Carbonisoneofthemostabundantelementsintheuniverse. Everyknownkindoflife

      containscarbon. Grapheneisasheetofcarbon,butonlyoneatomthick. Youdonthavetolookfartofindgraphemeitsallaroundyou.

      Ifyouwantthishigh-techwonderstuff6,allyouneedisapencil,paperandalittleadhesive

      tape. Usethepenciltoshadeasmallareaonthepaper, andthenapplyasmallpieceofadhesive

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