2015年职称英语直播1v1理工

2015 英 —阅读理解精讲（理工类 C级第7SugarPowerforCell【用糖 发电 Loomvi.迫近 Arsenicn.砷

n.烟，气，汽carbondioxide二氧化碳 n.灰浆，水泥浆

n.煤烟，油烟、 adj.在进行中的 短语课前预知（注释loomingcatastropheloom“toseemimminent;toimpend”(看似即将发生；迫近）apanel:意为“agroupofpeoplegatheredtoplanordiscussDenver:丹佛 短语课前预知（注释Onitsown“independentofoutsidehelpCoalstockpiles煤堆upto相当 thinmortar稀砂浆，稀灰浆cutoffOnceunderwayunderway:正在进行（工作） 意为“toholdorkeepwithinlimits Usingenzymescommonlyfoundinlivingcells,anewtypeoffuelCellproducessmallamountsofelectricityfromsugar.Ifthetechnologyisabletosucceedinmassproduction,youmaysomedayshareyoursweetdrinkswithyourcellphone. Infuelcells,chemicalreactionsgenerateelectricalcurrents.Theprocessusuallyreliesonpreciousmetals,suchasplatinum.Inlivingcells,enzymesperformasimilarjob,breakingdownsugarstoobtainelectronsandproduceenergy. Whenresearcherspreviouslyusedenzymesinfuelceils,theyhadtroublekee themactive,saysSeyD.MinteerofStLouisUniverslty1.Whereasbiologicalcellscontinuallyproducefreshenzymes,there'snomechanisminfuelcellstoreplaceenzymesastheyquicklydegrade. MinteerandTamaraKlotzbach,alsoofStLouisUniversity,havenowdevelopedpolymersthatwraparoundanenzymeandpreserveitinapocket."Wetailorthesepocketstoprovidetheidealmicroenvironment"fortheenzyme,Minteersays.Thepolymerskeeptheenzymeactiveformonthsinsteadof Inthenewfuelcell,tinypolymerbagsofenzymeareembeddedinamembranethatcoatsoneoftheelectrodes.Whenglucosefromasugaryliquidgetsintoapocket,theenzymeoxidizesit,releasingelectronsandprotons.Theelectronscrossthemembraneandenterawirethroughwhichtheytraveltotheotherelectrode,wheretheyreactwithoxygenintheatmospheretoproducewater.Theflowofelectronsthroughthewireconstitutesanelectricalcurrentthatcangeneratepower. Sofar,thenewfuelcellsdon'tproducemuchpower,butthefactthattheyworkatallisexciting,saysPaulKenis,achemicalengineerattheUniversityofIllinois2atUrbana‐Champaign3."Justgettingittowork,"Kenissays,"isamajor plishment." Sugar‐eatingfuelcellscouldbeanefficientwaytomakeelectricity.Sugariseasytofind.Andthenewfuelcellsthatrunonitarebiodegradable,sothetechnologywouldn'thurttheenvironment.Thescientistsarenowtryingtousedifferentenzymesthatwillgetmorepowerfromsugar.Theypredictthatpopularproductsmayheusingthenewtechnologyinaslittleas3years. Accordingtothefirstparagraph,whencanweshareoursweetdrinkswithourcellphones?AWhenenzymescanbecommonlyfoundinlivingBWhenthetechnologyofproducinganewtypeoffuelcellappears.CWhenthetechnologyofanewtypeoffuelcellissuitableformassproduction.DWhenthetechnologyofmassproducingcellphones WhattroubledidMinteerandKlotzBachhaveintheirresearch?ATheyhadtrouble enzymesinfuelcellsBTheyhadtrouble biologicalcellsCTheyhadtroubleproducingfreshDTheyhadtroublefindingmechanismforproducing AccordingtoParagraph5,electronsare AwhenbagsofenzymeareembeddedinthenewfuelBwhenglucosefromasugaryliquidgoesthroughtheCwhentheenzymeoxidizestheglucosefromasugaryliquidthatgoesthroughapocket.Dwhentheenzymeoxidizesthesugaryliquidthatgoesthroughapocket. WhatisexcitingaboutthenewfuelATheirlimitlesspowergenerationcapacityisBTheirlimitedpowergenerationcapacityisagoodCTheirlimitedpowergenerationcapacityistheresultofgreatefforts.DTheirlimitlesspowergenerationcapacityisamajor Accordingtothelastparagraph,whatisNOTtrueofthenewfuelcells?AThenewfuelcellsrunonsugarthatiseasytoBThenewfuelcellsareenvironmentCThenewfuelCellsarebiologicallyDItwilltakesometimebeforethenewfuelcellscanbeusedinpopularproducts. 文章中文用糖 发 eyD．Minteer说，以前研究人员 在新 。电子穿过薄膜进入一根导线并通过这根导线到达其他电子。导线中的电子与 大学Urbana‐Champaign校区的化学工程师PaulKenis ，目前这种新型消耗糖的细胞有可能成为高效的发电工具。糖容易得到，而且消耗糖的新型细胞可生物降解，因此这项技术不会损害环境。目前，科学家们正试图利用别的能从糖中产生电的酶。 C级第8

EiffelIsan【引人注目 铁塔

n.电

n

electron电

v.降 glucosen.葡萄

adj.能进行生物降解 proton质 v.埋置，插 microenvironment微环 Some300metersup,neartheEiffelTower’swind‐whippedsummittheworldcomestoscribble.Japanese,Brazilians.Americans—theygraffititheirnames,lovesandpoliticsonthecoldiron—transformingthemostFrenchofmonumentsintosymbolofaworldonthemove. WithPairslaidoutinminiaturebelow,itseemsstrangethatvisitorswouldratherwastetimemarkingtheirpresencethanadmiringtheview.Butthegraffitialsoraisesaquestion:Why,nearly114yearsafteritwascompleted,anddecadesafteritceasedtobetheworld’stalleststructure,islaTourEiffelstillsopopular? Thereasonsareascomplexastheironworkthatgracesastructuresome90storieshigh.Butpartoftheansweris,nodoubt,itsagelessness,regularlymaintained,itshouldneverrustaway.Graffitiisregularlypaintedover,butthetowerliveson. “EiffelrepresentsParisandParisisFrance.Itisverysymbolic,”saysHuguesRichard,a31‐year‐oldFrenanwhoholdstherecordforcyclinguptothetower’ssecondfloor—747stepsin19minutesand4seconds,withouttouchingthefloorwithhisfeet.“It’sironlady,itinspiresus,”hesays. Buttowhat?Afterall,thetowerdoesn’thaveapurpose.Itceasedtobetheworld’stallestin1930whentheChryslerBuildingwentupinNewYork.Yes,evisionandradiosignalsarebeamedfromthetop,andGustaveEiffel,afreneticbuilderwhodiedonDecember27,aged91,useditsheightforconducting Butinessencethetowerinspiressimplybybeingthere‐‐‐ablankcanvasforvisitorstomakeofitwhattheywill.Tothetechnicallyminded,it’sanengineeringtriumph.Forlovers,it’sromantic.“Thetowerwilloutlastallofus,andbyalongway,”saysIsabelleEsnous,whosecompanymanagesEiffel WhydoestheauthorthinktheEiffelToweristransformedintosymbolofaworldofthemove?TouristsfromallovertheworldcometotheEiffelTowerbycarorbyplane.Touristsofallnationalitiescometoscribbleonthecoldironofthetower.TheEiffelToweristhetallestbuildingintheTeEiffelTowerrepresentsallthetowersintheworld. WhatseemsstrangetotheVisitorspreferwastingtimescribblingtoenjoyingtheVisitorsspendsmuchtimewatchingotherpeopleOnlyJapanese,BraziliansandAmericansliketomarktheirpresence.Scribblingspre