2009年职称英语考试理工类B级试题

12009年度全国职称英语等级考试理工类（B级）第1部分：词汇选项（第1～15题，每题1分，共15分）下面每个句子中均有1个词或短语划有横线，请为每处划线部分确定1个意义最为接近的选项。1Wouldyoupleasecallmyhusbandassoonaspossible?AvisitBphoneCconsultDinvite2Wehadalongconversationaboutherparents.AspeechBquestionCtalkDdebate3Thechairmanproposedthatwestopthemeeting.AstatedBannouncedCdemandedDsuggested4Obviouslythesepeoplecanbereliedoninacrisis.AlivedonBdependedonCbelievedinDjoinedin5ThereisalwaysexcitementattheOlympicGameswhenanathletebreaksarecord.AbeatsBmaintainsCmatchesDtries6Allthepupilsseemtobeverycheerful.AhappyBhealthyCnaughtyDbusy7Thetraditionalpaintingsareexhibitedonthesecondfloor.AlaidBdisplayedCkeptDstored8Shestoodthere,shakingwithfury.AmiseryBlaughterCangerDcry9MaryevidentlyisthemostdiligentstudentamongusAintelligentBbeautifulCtalkativeDhardworking10PersistentattemptstointerviewGarbowerefruitless.AForcefulBReasonableCContinuousDFirm11Whycan'tyoustopyoureternalcomplaining?AeverlastingBlong2CtemporaryDboring12Hundredsofbuildingswerewreckedbytheearthquake.AshakenBdamagedCfallenDjumped13Thesepaintingsareconsideredbymanytobeauthentic.AfaithfulBroyalCgenuineDsincere14Manyeconomistshavegivenintothefatallureofmathematics.AattractionBsimplicityCpowerDrigor15Tenyearsaftertheevent,herdeathstillremainsapuzzleAmistBfogCmysteryDsecret第2部分：阅读判断（第16～22题，每题1分，共7分）下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断：如果该句提供的是正确信息，请选择A；如果该句提供的是错误信息，请选择B；如果该句的信息文中没有提及，请选择C。RadiocarbonDatingNowadaysscientistscananswermanyquestionsaboutthepastthroughatechniquecalledradiocarbon(放射性碳),orcarbon-14,dating.Onekeytounderstandinghowandbysomethinghappenedistodiscoverwhenithappened.Radiocarbondatingwasdevelopedinthelate1940sbyphysicistWillardF.LibbyatheUniversityofChicago.Anatomofordinarycarbon,calledcarbon-12,hassixprotons(中子)andsixneutrons(质子)initsnucleus.Carbon-14,orC-14,isaradioactive,unstableformofcarbonthathastwoextraneutrons(原子核).Itreturnstoamorestableformofcarbonthroughaprocesscalleddecay(衰减).Thisprocessinvolvesthelossofheextraneutronsandenergyfromthenucleus.InLibby'sradiocarbondatingtechnique,theweakradioactiveemissions(放射)fromhisdecayprocessarecountedbyinstrumentssuchasaradiationdetectorandcounter.hedecayrateisusedtodeterminetheproportionofC-14atomsinthesamplebeingdated.Carbon-14isproducedintheEarth'satmospherewhennitrogen(氮)-14,orN-14,interactswithcosmicrays(宇宙射线).ScientistsbelievesincetheEarthwasformed,themountofnitrogenintheatmospherehasremainedconstant.Consequently,C-14formationisthoughttooccurataconstantrate.NowtheratioofC-14toothercarbontomsintheatmosphereisknown.Mostscientistsagreethatthisratioisusefulfordatingitemsbacktoatleast50,000years.AlllifeonEarthismadeoforganicmolecules(分子)thatcontaincarbonatomscomingfromtheatmosphere.SoalllivingthingshaveaboutthesameratioofC-14atomstoothercarbonatomsintheirtissues(组织).Onceanorganism(有机体)diesittopstakingincarboninanyform,andtheC-14alreadypresentbeginstodecay.Overtimetheamountof3C-14inthematerialdecreases,andtheratioofC-14toothercarbontomsgoesdown.Intermsofradiocarbondating,thefewerC-14atomsinasample,theolderthatsampleis.16Nowadaysmanyscientistsdependonradiocarbonfordatingage-oldobjectsARightBWrongCNotmentioned17Theradiocarbondatingtechniqueisonlyabout40yearsoldARightBWrongCNotmentioned18AnatomofordinarycarbonhassixprotonsandeightneutronsARightBWrongCNotmentioned19RadarisusedtodeterminethecharacteristicsofradiocarbonARightBWrongCNotmentioned20Radiocarbonisreliableindatinganobjectbacktoatleast50,000years.ARightBWrongCNotmentioned21TheC-14inanorganismbeginstodecaywhenitdiesARightBWrongCNotmentioned22Thehalf-lifeofC-14isabout25,000years.ARightBWrongCNotmentioned第3部分：概括大意与完成句子（第23～30题，每题1分，共8分）下面的短文后有2项测试任务：（1）第23～26题要求从所给的6个选项中为第1～4段每段1选择个最佳标题；（2）第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。Chimpanzees1Chimpanzees(黑猩猩)willsoonbeextinct(灭绝).Ifthepresentrateofhuntingandhabitat(栖息地)destructioncontinues,thenwithin20years,therewillbenochimpanzeeslivinginthewild.Butthisismorethananenvironmentalormoraltragedy(悲剧).Chimpanzeeextinctionmayalsohaveprofoundimplications(含意)forthesurvivaloftheirdistantrelatives-humanbeings.2In1975thebiologistMarie-ClaireKingandAllanWilsondiscoveredthatthehumanandchimpanzeegenomes(基因组)matchbyover98%.Comparethistothemouse,usedasmodelforhumandiseaseinlabtests,whichsharesonly60%ofitsDNAwithus.Infact,chimpanzeesarefarmoresimilartohumansthantheyaretoanyotherspeciesofmonkey.Aswellasresemblingusgenetically,chimpsarehighlyintelligentandabletousetools.Thesefactsaloneshouldbeenoughtomakeprotectionofchimpsanurgentpriority(优先).Butthereisanother,moreselfishreasontopreservethechimp.3Thechimpanzees'trumpcard(王牌)comesinthefieldofmedicalresearch.Chimpanzeesaresosimilartohumansthatveterinarians(兽医)oftenrefertohumanmedicaltextbookswhentreatingthem.Yetchimpanzeesdoshowdifferencesinseveralkeyareas.Inparticular,chimpsaremuchmoreresistanttoanumberofmajordiseases.Itisthisabilitythatissointeresting.4Forexample,chimpsseemtoshowamuchhigherresistancethanhumanstoHIV,thevirusthatcausesAIDS.Indeed,theiruseasexperimentalanimalsinAIDSresearchhasdeclinedbecausetheyaresoresistant.5Bysequencingthechimpgenomeandpinpo