2012年职称英语教材(理工类)完形填空新增内容.doc

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1、2012年职称英语教材（理工类）完形填空新增内容第三篇： GermsonBanknotesPeopleindifferentcountriesusedifferenttypesof   1   ：yuaninChina，pesosinMexico,poundsintheUnitedKingdom，dollarsintheUnitedStates，AustraliaandNewZealand．Theymayuse    2    currencies，butthesecountries，andprobablyallcountries，stillhaveonethin

2、gincommon：Germsonthebanknotes．Scientistshavebeenstudyingthegermsonmoneyforwellover100years．Attheturnofthe20th  3   ，someresearchersbegantosuspectthatgermslivingonmoneycouldsprea disease．     Moststudiesofgermymoneyhavelookedatthegermsonthecurrency  4    country．Inanewstudy，FrankVriese

3、koopandotherresearcherscomparedthegermpopulationsfoundonbillsofdifferent   5    ．     Vriesekoop  isamicrobiologistattheUniversityofBallaratinAustralia．Heledthestudy，whichcomparedthegermpopulationsfoundonmoney    6    from10nations．Thescientistsstudied1,280banknotesintotal;allcamefrom

4、placeswherepeoplebuyfood,likesupermarkets,streetvendorsandcafes,    7   thosebusinessesoftenrelyoncash. Overall，theAustraliandollarshostedthefewestlivebacteria—nomorethan10persquare centimeter．Chineseyuanhadthemost——about100persquarecentimeter．Mostofthegermson moneyprobablywouldnotcau

5、seharm．    Whatwecall“papermoney”usuallyisn’tmadefrompaper．TheU．S．dollar，forexample，Inprintonfabricthatismostly    8   Differentcountriesmayusedifferent   9   toprinttheirmoney．SomeofthecurrenciesstudiedbyVriesekoopandhis    10    ，suchasthe Americandollar，weremadefromcotton．Otherswer

6、emadefrompolymers．     The  three    11    withthelowestnumbersofbacteriawereallprintedonpolymers．TheyincludedtheAustraliandollar，theNewZealanddollarandsomeMexicanpesos．Theothercurrencieswereprintedonfabricmade  12   of  cotton.Fewergermslivedonthepolymernotes.Thisconnectionsuggeststh

7、at  13  haveahardertimestayingaliveonpolymersurfaces.Scientistsneedtodomorestudiestounderstandhowgermsliveonmoney—and whetherornotweneedtobeconcerned．Vriesekoopisnowstartingastudythatwill  14  theamountsoftimebacteriacanstayaliveondifferenttypesofbills．WhateverVriesekoopfinds，thefactr

8、emain