2015年职称英语理工类B级考试真题及试题答案

2015年职称英语理工类B级考试真题及试题答案【完整版】2015年职称英语考试《理工类B级》试题及答案词汇选项:01-15题阅读判断:16-22题概括大意与完成句子:23-30题阅读理解:31-35题阅读理解:36-40题阅读理解:41-45题补全短文:46-50题完形填空:51-60题进入历年真题一览表第二部分：阅读判断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作出判断：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.(第16—22题，每题1分，共7分)ADHDLinkedtoAirPollutantsChildrenhaveanincreasedofattentionproblems,seenasearlyasgradeschool.Iftheirnosesinhaled(吸入)acertaintypeofairpollutionwhentheywerepregnant.That'sthefindingofanewstudy.Releasedwhenthingsaren'tburnedcompletely,thispollutionisknownaspolycyclicaromatichydrocarbons,orPAHs.ThebiggestsourcesofthesePAHs：theburningoffossilfuels,woodandtrash.FredericaPereraworksatColumbiaUniversity'sMailmanSchoolofPublicHealthisNewYorkCity.Sheresearcheshowexposuretothingsintheenvironmentaffectschildren'shealthinanewstudy,sheandherteamstudiedtheexposuretoairpollutionof233nonsmokingpregnantwomeninNewYorkCity.Becauseburningtobaccocanspew(排放)PAHsintotheairandlungs,Perera'steamfocusedonnonsmokers.Theresearcherswantedtoprobe(探查)othersourcesofPAHs,onesthat'swouldhavebeenhardforanindividualtoavoid.Theteamstartedbytestingthebloodofeachwomanduringpregnancy.ThereasonAnyPAHsinawoman'sbloodwouldalsobeavailabletothebabyinherwomb.Nineyearslater,theresearchersinvestigatedsignsofattentionproblemsinthosechildren,nowage9.Theyaskedeachchild'smotheraseriesofquestions.Theseincludedwhateverherchildhadproblemsdoingthingsthatneededsustained(长期的)mentaleffort,suchashomeworkorgameswithfriends.Thescientistsalsoaskedifthekidshadtroublefollowinginstructionsormadefrequent,carelessmistakes.AllofthesecanbesymptomsofadisordercalledAttentionDeficitHyperactivityDisorder,orADHD.AboutoneinU.S.childrenhasADHD.Amongthewomenstudied,trafficandhomeheatingweretheprimarysourcesofairpollutionexposure,Pereraandherteamsuspect.SomeofthesewomenhadlowlevelsofPAHsintheirblood.Ohtershadhighlevels.Thosewithhighlevelswerefivetimesaslikelytohavechildrenwhoshowedattentionproblemsbyage9.ThenewfindingswerepublishedNovember5inthejournalPLOSONE.16.PereraandherteamchosenonsmokingpregnantwomenalloverAmerica.A.RightB.WrongC.Notmentioned参考答案：B17.ThemainpurposeoftheresearchwastofindouthowexposuretoPAHsplayedaroleinharmingthesubjects'physicalhealth.A.RightB.WrongC.Notmentioned参考答案：B18.NonsmokingmotherswereselectedbecausetheeffectofsmokingonPAHswasunclear.A.RightB.WrongC.Notmentioned参考答案：B19.Thebloodofeachwomanwastestedonceamonthduringpregnancy.A.RightB.WrongC.Notmentioned参考答案：C20.KidswithADHDcommonlyfailinschool.A.RightB.WrongC.Notmentioned参考答案：C21.ThewomenwithhighlevelsofPAHsintheirbloodweremorelikelytohavekidswithADHD.A.RightB.WrongC.Notmentioned参考答案：A22.TrafficandhomeheatingwereconsideredtobethebiggestsourcesofPAHsforthesubjectsintheresearch.A.RightB.WrongC.Notmentioned参考答案：A第三部分：概括大意与完成句子下面的短文后有2项测试任务：(1)第23—26题要求从所给的6个选项中为指定段落每段选择1个标题;(2)第27—30题要求从所给的6个选项中为每个句子确定一个最佳选项。(第23—30题，每题1分，共8分)FirstImage-recognitionssoftware1)DartmouthresearchersandtheircolleagueshavecreatedanartificialintelligencesoftwarethatusesphotostolocatedocumentsontheInternetwithfargreateraccuracythaneverbefore.2)Thenewsystem,witchwastestedonphotosandisnowbeingappliedtovideos,showsforthefirsttimethatamachinelearningalgorithm(运算法则)forimagerecognitionandretrievalisaccurateandefficientienoughtoimprovelarge-scaledocumentsearchesonline.Thesystemusespixel(像素)datainimagesandpotentiallyvideo—ratherthanjusttext—tolocatedocuments.Itlearnstorecognizethepixelsassociatedwithasearchphrasebystudyingtheresultsfromtext-basedimagesearchengines.Theknowledgegleaned(收集)fromthoseresultscanthenbeappliedtootherphotoswithouttagsorcaptions(图片说明)，makingformoreaccuratedocumentsearchresults.3)Overthelast30years,saysAssociateProfessorKorenzoTorresani,aco-authorofthestudy,thewebhasevolvedfromasmallcollectionofmostlytextdocumentstoamodern,massive,fast-growingmultimediadatastet,wherenearlyeverypageincludesmultiplepicturesofvideos.WhenapersonlooksataWebpage,heimmediatelygetthegist(主旨)ofitbylookingatthepicturesinit.Yet,sruprisingly,allexistingpopularsearchengine,suchasGoogleorBing,stripawaytheinformationcontainedinthephotosanduseexclusivelythetextofWedpagestoperformthedocumentretrieval.Ourstudyisthefirsttoshowthatmodernmachinevisionsystemsareaccurateandefficientenoughtomakeeffectiveuseoftheinformationcontainedinimagepixelstoimprovedocumentsearch4)Theresearchersdesignedandtestedamachinevisionsystem—atypeofartificialintelligencethatallowscomputerstolearnwithoutbeingexplicitlyprogrammed—thatextractssemantic(语义的)informationfrompixelsofphotosinWebpages.ThisinformationgisusedtoenrichthedescriptionoftheHTMLpageusedbysearchenginesfordocumentretrieval.Theresearcherstestedtheirapproachusingmorethan600searchqueries(查询)onadatabaseof50millionWedpages.Theyselectedthetext-retrievalsearchenginewiththebestperformanceandmodifiedittomakeuseoftheadditionalsemanticinformationextractedbytheirmethodfromthepicturesoftheWebpages.Theyfoundthtthisproduceda30percentimprovementinprecisionovertheoriginalsearchenginepurelybasedontext.23.Paragraph1_____A.PopularityofthenewsystemB.Publicationofthenewd