2012职称英语讲座

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1、2009年职称英语考前讲座例题词汇选项例题1.Gasdoesaccumulateintheminesaroundhere.A.increaseB.spreadC.collectD.grow2.Thelittleboywassofascinatedbythemightyriverthathewouldspendhours…A.verystrongB.verylongC.verygreatD.veryfast审题的重要性标题1.Outside-the-classroomLearningMakesaBigD

2、ifference标题2.DecliningInterestinDevelopingForeignLanguageSkills标题3.Kidneydiseaseandheartdiseasespureachother阅读理解例题EattoLiveAmeagerdietmaygiveyouhealthandlonglife,butit'snotmuchfun—anditmightnotevenbenecessary.Wemaybeabletohangontomostofthatyouthfulvigor

3、evenifwedon'tstarttodietuntiloldage.StephenSpindlerandhiscolleaguesfromtheUniversityofCaliforniaatRiversidehavefoundthatsomeofanelderlymouse'slivergenescanbemadetobehaveastheydidwhenthemousewasyoungsimplybylimitingitsfoodforfourweeks.Thegeneticrejuvenat

4、ionwon'treverseotherdamagecausedbytimeforthemouse,butcouldhelpitslivermetabolizedrugsorgetridoftoxins.Spindler'steamfedthreemiceanormaldietfortheirwholelives,andfedanotherthreeonhalf-rations.Threemoremicewereswitchedfromthenormaldiettohalf-feedforamonth

5、whentheywere34monthsold—equivalenttoabout70humanyears.Theresearcherscheckedtheactivityof11,000genesfromthemouselivers,andfoundthat46changedwithageinthenormallyfedmice.Thechangeswereassociatedwiththingslikeinflammationandfreeradicalproduction—probablybad

6、newsformousehealth.Inthemicethathaddietedalltheirlives,27ofthose46genescontinuedtobehavelikeyounggenes.Butthemostsurprisingfindingwasthatthemicethatonlystarteddietinginoldagealsobenefitedfrom70percentofthesegenechanges.“Thisisthefirstindicationthattheee

7、ffectskickinprettyquickly,”saysHuberWarnerfromtheNationalInstituteonAgingnearWashington,D.C.Nooneyetknowsifcalorieworksinpeopleasitdoesinmice,busSpindlerishopeful.“There'sattractingandtemptingevidenceouttherethatitwillwork,”hesays.Ifitdoesworkinpeople,t

8、heremightbegoodreasonsforrejuvenatingtheliver.Aswegetolder,outbodiesarelesefficientatmetabolizingdrugs,forexample.Abriefperiodoftimeofdieting,saysSpindler,couldbeenoughtomakesureadrugiseffective.ButSpindlerisn'tsurethetrade-offis