2013年职称英语考试综合类B级试题及答案

正保远程教育（美国纽交所上市公司代码：DL）_____________________________________________________________________[]职业培训教育24小时）关注更多2015年职称英语考试资料，及时了解职称英语考试动态，欢迎添加职业培训教育网职称英语频道微信：zhichengenglish，QQ群：210597052204744182302593754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个词或短语画有底横线，请为每处画线部分确定1个意义最为接近的选项。1、Shecameacrossthreechildrensleepingunderabridge.ApassedbyBtookanoticeofCwokeupDfoundbychance答案：D职业培训教育网名师解析：comeacross是固定搭配，意思是“偶遇，碰巧发现”，因此选择D选项。passby“路过”，takeanoticeof“注意到”，wakeup“醒来”。2、Itseemedincrediblethathehadbeenthereaweekalready.ArightBobviousCunbelievableDunclear答案：C职业培训教育网名师解析：incredible意为“难以置信的”，与unbelievable同义。obvious“明显的”，unclear“不明的”。3、Hewastemptedbythehighsalaryofferedbythecompany.AattractedBtaughtCkeptDchanged答案：A职业培训教育网名师解析：tempt“吸引，诱惑”，此处为被动态，句子意思为：他被这家公司开出的高额薪水吸引了。A选项符合句义。4、Shegetsaggressivewhensheisdrunk.AworriedBoffensiveCsleepyDanxious答案：B职业培训教育网名师解析：aggressive意为“好斗的，富于攻击性的”，与offensive相近，如：Mentendtobemoreaggressivethanwomen.男性往往比女性更具有攻击性。Knivesofanysortareclassedasoffensiveweapons.任何刀具都属于攻击性武器。worried“拘心的”，sleepy“困倦的”，anxious“焦急的”。5、Ihavelittleinformationasregardsherfitnessforthepost.AatBwithCaboutDfrom答案：C职业培训教育网名师解析：asregards是固定搭配，意思是“关于”，如：Thereisnoproblemasregardsthefinancialarrangements.资金筹备方面毫无问题。6、Theseanimalsmigratesouthannuallyinsearchoffood.AexploreBinhabitCpreferDtravel答案：D职业培训教育网名师解析：migrate的意思是“迁徙”，travel除了常见的“旅行”意思外，还有“行进”的意思，如：Supersonicplanescantravelfasterthanthespeedofsound.超音速飞机的速度比音速快。在这里可作同义替换。explore“探索”，inhabit“柄息，居住”，prefer“更喜欢”。7、Therewassomethingpeculiarinthewayhesmiles.AdifferentBwrongCstrangeDfunny答案：C10、Hepaused,waitingforhertodigesttheinformation.AwithholdBexchangeCunderstandDcontact答案：C职业培训教育网名师解析：digest本义是“消化”，可转义为“理解(知识、信息)”，在句中可与understand互换。withhold“保留，隐瞒”;exchange“交换”;contact“联系”。11、Therulesaretoorigidtoallowforhumanerror.AgeneralBinflexibleCcomplexDdirect答案：B职业培训教育网名师解析：rigid“僵硬的，固定的，顽间的”，与inflexible同义。12、Rumorsbegantocirculateabouthisfinancialproblems.AsendBhearCconfirmDspread答案：D职业培训教育网名师解析：circulate做不及物动同，意思是“传播，流通”，如：Weshouldoftenopenthewin-dowstoallowtheairtocirculate.我们应当经常打开窗户以使空气流通。句子的意思是：关于他的财政问题的流言开始传开。13、Comeout,orI'llbustthedoordown.AbreakBshutCsetDbeat答案：A职业培训教育网名师解析：bust“使爆裂”，句子的意思是：快点，不然我就破门而入了。这里与break同义。14、Thepolicewillneedtokeepawaryeyeonthisareaoftown.AnakedBblindCcautiousDprivate答案：C职业培训教育网名师解析：wary“谨慎的，机警的”，与cautious同义。naked“裸体的”，blind“盲的”，private“私人的”。15、Thecontractbetweenthetwocompanieswillexpiresoon.AshortenBstartCendDresume答案：C职业培训教育网名师解析：expire“期满，终止”。resume是“重新开始”。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。KickingtheHabitWhatisabadhabit?Themostcommondefinitionisthatitissomethingthatwedoregularly,almostwithoutthinkingaboutit,andwhichhassomesortofnegativeconsequence.Thisconsequencecouldaffectthosearoundus,oritcouldaffectuspersonally.Thosewhodenyhavingbadhabitsareprobablylying.Badhamsarepartofwhatmakesushuman.Manyearlyhabits,likesuckingourthumb,arebrokenwhenweareveryyoung.Weareeithertoldtostopdoingitbyourparents,orweconsciouslyorsubconsciouslyobservethatothersdonothavethesamehabit,andwegraduallygrowoutofit.Itiswhenweintentionallyorunintentionallypickupnewhabitsinourlaterchildhoodorearlyadulthoodthatitbecomesaproblem.Unlesswecanbreakthathabitearlyon,itbecomesapartofourWe,andbecomes“programmed”intoourbrain.Arecentstudyofhumanmemorysuggeststhatnomatterhowhardwetrytochangeourhabits,itistheoldwaysthattendtowin,especiallyinsituationswherewearerushed,stressedoroverworked.Habitsthatwethoughtwehadgotridofcansuddenlycomeback.Duringthestudyprogramme,theresearchersshowedagroupofvolunteersseveralpictures,andgavethemwordstoassociatewiththem.Theythenshowedthevolunteersthesamepicturesagain,andgavethemnewwordstoassociatewiththem.Afewdayslater,thevolunteersweregivenatest.Theresearchersshowedthemthepictures，andtoldthemtorespondwithoneofthewordstheyhadbeengivenforeachone.ItcameasnosurprisethattheiranswersweresplitbetweenthefirstsetofwordsandthesecondTwoweekslater,theyweregiventhesametestagain.Thistime,mostofthemonlygavethefirstsetofwords.Theyappearedtohavecompletelyforgottenthesecondset.Thestudyconfirmsthattheresponseswelearnfirstarethosethatremainstrongestovertime.Wemaytrytochangeourways,butafterawhile,theresponsethatcomestomindfirstisusuallythefirstonewelearned.Themorethatresponseisusedthemoreautomaticitbecomesandtheharderitbecomestorespondinanyotherway.Thestudythereforesuggeststhatovertime,ourbadhabitsalsobecomeautomatic,learnedbehaviour.Thisisnotgoodnewsforpeoplewhopickedupbadhabitsearlyinlifeandnowwanttochangeorbreakthem.Evenwhenwetrytoputnew,goodintentionsintopractice,thosepreviouslylearnedhabitsremainstrongerinmoreautomatic,unconsciousformsofmemory.16Boysusuallydevelopbadhabitswhentheyareveryyoung.ARightBWrongCNotmentioned17Wecanonlybreakbadhabitsifotherstellustodoso.ARightBWrongCNotmentioned18Badhabitsmayreturnwhenweareunderpressure.ARightBWrongCNotmentioned19Researchersweresurprisedbytheanswersthatthevolunteersgaveinthefirsttest.ARightBWrongCNotmentioned20Thevolunteersfoundthetestmoredifficultwhentheydiditthesecondtime.ARightBWrongCNotmentioned21ThestudysuggeststhatitismoredifficulttorespondtowhatwelearnfirstARightBWrongCNotmentioned20C文中只提到更多的受试者在第二次测试中选择了第一组也就是先记住的同汇，并没有讲他们对题目难度的感受。21B调查显示人们更容易记住先学到的东西。22A文中最后两段都是在讲小时候坏习惯是根深蒂固的，即使努力摆脱，也常常容易回到旧轨道上去。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段每段选择1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。TrafficJams-NoEndinSightTrafficcongestion(拥堵)affectspeoplethroughouttheworldTrafficjamscausesmogindozensofcitiesacrossboththedevelopedanddevelopingworld.IntheU.S.,commuters(通勤人员)spendanaverageofafullworkingweekeachyearsittingintrafficjams,accordingtotheTexasTransportationinstitute.Whilealternativewaysofgettingaroundareavailable,mostpeoplestillchoosetheircarsbecausetheyarelookingforconvenience,comfortandprivacy.Themostpromisingtechniqueforreducingcitytrafficiscalledcongestionpricing，wherebycitieschargeatolltoentercertainpartsoftownatcertaintimesofday.Intheory,ifthetoilishighenough,somedriverswillcanceltheirtripsorgobybusortrain.Andinpracticeitseemstowork;Singapore,LondonandStockholmhavereducedtrafficandpollutionincitycentresthankstocongestionpricing.Anotherwaytoreducerush-hourtrafficisforemployerstoimplementflexitime,whichletsemployeestraveltoandfromworkatoff-peaktraffictimestoavoidtherushhour.Thosewhohavetotravelduringbusytimescandotheirpartbysharingcars.Employerscanalsoallowmorestafftotelecommute(workfromhome)soastokeepmorecarsofftheroadaltogether.Someurbanplannersstillbelievethatthebestwaytoeasetrafficcongestionistobuildmoreroads,especiallyroadsthatcantakedriversaroundorovercrowdedcitystreets.Butsuchtechniquesdonotreallykeepcarsofftheroad;theyonlyaccommodatemoreofthem.Other,moreforward-thinking,plannersknowthatmoreandmoredriversandcarsaretakingtotheroadseveryday,andtheyareunwillingtoencouragemoreprivateautomobileswhenpublictransportissomuchbetterbothforpeopleandtheenvironment.Forthisreason,theAmericangovernmenthasdecidedtospendsome$7billiononhelpingtoincreasecapacityonpublic-transportsystemsandupgradethemwithmoreefficienttechnologies.Butenvironmentalistscomplainthatsuchfundingistinycomparedwiththe$50billionbeingspentonroadsandbridges.23Paragraph1_____24Paragraph2______25Paragraph3______26Paragraph4______A.PayingtogetinB.AsolutionwhichisnosolutionC.ChangingworkpracticeD.ClosingcitycentrestotrafficE.Notdoingenough27MostAmericandriversthinkitconvenientto______.28Ifchargedhighenough,somedriversmay______toentercertainpartsoftown.29Buildingmoreroadsisnotaneffectivewayto_______.30TheU.S.governmenthasplannedto_______updatingpublic-transportsystems.AreducetrafficjamsBspendmoremoneyCdrivearoundDtravelregularlyEgobybus第4部分：阅读理解(第31-45题，每题3分，共45分)下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。第一篇OperationMigrationIfyoulookupattheskyintheearlyfallinthenorthernpartofNorthAmerica,youmayseegroupsofbirds.Thesebirdsareflyingsouthtoplaceswheretheycanfindfoodandwarmthforthewinter.Theyaremigrating(迁徙)Theyoungbirdsusuallylearntomigratefromtheirparents.Theyfollowtheirparentssouth.Inoneunusualcase,however,theyoungbirdsarefollowingsomethingverydifferent.Thesebirdsareyoungwhoopingcranes,andtheyarefollowinganairplane?ThewhoopingcraneisthelargestbirdthatisnativetoNorthAmerica,Thesebirdsalmostdisappearedinthe1800s.By1941，therewereonlyabout20cranesalive.Inthe1970s,peoplewereworriedthatthesecreatureswereindangerofdisappearingcompletely.Asaresult,theUnitedStatesidentifiedwhoopingcranesasanendangeredspeciesthattheyneededtoprotect.Someresearcherstriedtohelp.Theybegantobreedwhoopingcranesinspecialparkstoincreasethenumberofbirds.Thisplanwassuccessful.Therewerealotofnewbabybirds.Asthebirdsbecameolder，theresearcherswantedtoreturnthemtonature.However,therewasaproblem：Theseyoungbirdsdidnotknowhowtomigrate.Theyneededhumanhelp.In2001，somepeoplehadacreativeidea.TheyformedanorganizationcalledOperationMigration.Thisgroupdecidedtouseverylightairplanes,insteadofbirds,toleadtheyoungwhoopingcranesontheirfirsttripsouth.Theypaintedeachairplanetolooklikeawhoopingcrane.Eventhepilotsworespecialclothingtomakethemlooklikecranes_Thecranesbegantotrusttheairplanes,andtheplanworked.Today,planesstillleadbirdsacrossapproximately1,200miles(1，931kilometers),fromtheUnitedStates-CanadianbordertotheGulfofMexico.Theyleavethebirdsatdifferentsites.Ifatripissuccessful,thebirdscantravelontheirowninthefuture.Then,whenthesebirdsbecomeparents,theywillteachtheiryoungtomigrate.ThepeopleofOperationMigrationthinkthisistheonlywaytomaintainthewhoopingcranepopulation.OperationMigrationworkswithseveralotherorganizationsandgovernmentinstitutes.Together,theyassisthundredsofcraneseachyear.However,someexpertspredict:thatsoon,thiswon’tbenecessary.ThankstoOperationMigrationanditspartners，thecranepopulationwillcontinuetomigrate.Hopefully,theywon'tneedhumanhelpanymore.31Whoopingcranesmigrateinwinterto_______________.AraisebabywhoopingcranesBfindwarmthandfoodCgethumanhelpDlayeggs答案：B33OperationMigrationaimsto___________.AteachadultcraneshowtoflyBbreedcranesinspecialparksCleadyoungcranesontheirfirsttripsouthDtransportcranestotheNorth答案：C职业培训教育网名师解析：第四段第三句：Thisgroupdecidedtouseverylightairplanes,insteadofbirds,toleadtheyoungwhoopingcranesontheirfirsttripsouth.因此选C。34Thedistancecoveredbytheyoungwhoopingcranesontheirtripsouthis_________.A120milesB1,200milesC1,931milesD2,000miles答案：B职业培训教育网名师解析：第五段第一句：Today，planesstillleadbirdsacrossapproximately1,200miles...因此选B。35ifOperationMigrationissuccessful.whoopingcraneswill____________.AfollowairplanessoutheveryyearBliveinCanadaallyearroundCbeunabletoflybackDlearntomigrateontheirown答案：D职业培训教育网名师解析：由最后—段可知，如果该计划成功的话，小美洲鹤就能学会自己迁徙，这也是这一计划的目的。第二篇“Lucky”LordLucan—AliveorDead?On8thNovember1974LordLucan,aBritisharistocrat(贵族)，vanished.Thedaybefore,hischildren’snanny(保姆)hadbeenbrutallymurderedandhiswifehadbeenattackedtoo.TothisdaytheBritishpublicarestillinterestedinthemurdercasebecauseLucanhasneverbeenfound.Now,over30yearslater,thepolicehavereopenedthecase,hopingthatnewDNAtechniqueswillhelpsolvethismurdermystery.Peoplesuspectedthat“Lucky”，ashewascalledbyfriends,wantedtokillhiswifehenolongerlivedwith.TheysaythatLucanenteredhisoldhouseandinthedark,killedthenannybymistake.Hisestranged(分居的)wifeheardnoises,camedownstairsandwasalsoattackedbutmanagedtoescape.Sevenmonthsafterthemurder，ajuryconcludedthatLucanhadkilledthenanny.Whathappenednextisunclear,butthereareseveraltheorieswhichfallintooneofthreecategories：hamayhavekilledhimself,hecouldhaveescapedorhemighthavebeenkilled,Itappearsthatthenightafterthemurder,“Lucky”borrowedacaranddroveit;Lucan'sfriendAspinallsaidinaninterviewthathethoughtLucanhadcommittedsuicidebysinkinghisboatintheEnglishChannel.Anotherversionofeventssaysthat“Lucky”lefttheblood-soakedcaronthecoastandtookaferrytoFrance.Hewasmettherebysomeonewhodrovehimtosafetyinanothercountry.However;afteratime,hisrescuersbecameworriedthattheywouldbecomeinvolvedmthemurdertooandsoLucanwaskilled.AfurtherfascinatingtheorywasmadeinthebookDeadLuckybyDuncanMacLaughlin,aformerdetective.HebelievesthatLucantravelledtoGoa,India,whereheassumedtheidentityofaMr.BarryHaplin.LucanthenlivedinGoatillhisdeathin1996.Intheendtheclaimturnedouttobeacaseofmistakenidentity.Themanwhodiedin1996wasreallyHaplin,anex-schoolteacher.Sowhatisthetruthabout“Lucky”?DNAtestinghassolvedmanymurdercases,butwhoknowsifitcanclosethebookonthisone.36TheBritishpublicarestillinterestedinthemurdercasebecause______.AthemurdererwasanaristocratBthemurdererhasnotbeencaughtCthemurderer'sDNAhasbeenfoundDthemurdererwasafamousman答案：B职业培训教育网名师解析：由第一段第三句：TothisdaytheBritishpublicarestillinterestedinthemurdercasebecauseLucanhasneverbeenfound.可选出答案为B。37ItwassuspectedthatLucankilledthenannybecause______.AshewascrueltohischildrenBsheattackedhiswifeCshewasmistakenforhiswifeDshestolehiscar答案：C39AccordingtotheversioninParagraph4,Lucan______.AwasinvolvedinamurderinFranceBwascaughtinanothercountryCmethispartnersonaferryDhadescapedbutwaskilledlater答案：D职业培训教育网名师解析：第四段讲述了一种版本的猜测，即Lucan被救之后又被杀害。40Theword"assumed"inthelastparagraphmeans______.AdisclosedBtookonCsetupDchanged答案：B职业培训教育网名师解析：句子的意思是Lucan假冒了另一个人的身份，assume有“冒充”的意思，在四个选项里面，takeonanidentity同样有“冒充身份”的意思，其他三个词都不能与identity搭配。第三篇OntheTrailoftheHoneyBadgerOnarecentfieldtriptotheKalahariDesert，ateamofresearcherslearntalotmoreabouthoneybadgers(獾).Theteamemployedalocalwildlifeexpert,KitsoKhama,tohelpthemlocateandfollowthebadgersacrossthedesert.Theirmainaimwastostudythebadgers，movementsandbehaviourasdiscreetly(谨慎地)aspossible,withoutfrighteningthemawayorcausingthemtochangetheirnaturalbehaviour,Theyalsoplannedtotrapafewandstudythemcloseupbeforereleasingthem.Inviewoftheanimal'sreputation,thiswassomethingthatevenKhamawasreluctanttodo.“Theproblemwithhoneybadgersistheyarenaturallycuriousanimals,especiallywhentheyseesomethingnew,”hesays."Thai,combinedwiththeirunpredictablenature,canbeadangerousmixture,iftheysenseyouhavefood,forexample,theywon’tbeshyaboutcomingrightuptoyouforsomethingtoeat.They1reactuallyquitesociablecreaturesaroundhumans,butassoonastheyfeeltheymightbeindanger,theycanbecomeextremelyvicious(凶恶的).Fortunatelythisisrare,butitdoeshappen.”Theresearchconfirmedmanythingsthatwerealreadyknown.Asexpected,honeybadgersateanycreaturestheycouldcatchandkill.Evenpoisonoussnakes,fearedandavoidedbymostotheranimals,werenotsafefromthem.Theresearchersweresurprised,however,bytheanimalsfondnessforlocalmelons,probablybecauseoftheirhighwatercontent.Previouslyresearchersthoughtthattheanimalgotallofitsliquidrequirementsfromitsprey(猎物)Theteamalsolearntthat,contrarytopreviousresearchfindings,thebadgersoccasionallyformedloosefamilygroups.,Theywerealsoabletoconfirmcertainresultsfrompreviousresearch,includingthefactthatfemalebadgersneversocialisedwitheachother.Followingsomeofthemalebadgerswasachallenge,sincetheycancoverlargedistancesinashortspaceoftime.Somehuntingterritoriescovermorethan500squarekilometres.Althoughtheyseemhappytosharetheseterritorieswithothermales,thereareoccasionalfightsoveranimportantfoodsource,andmalebadgerscanbeasaggressivetowardseachotherastheyaretowardsotherspecies.Asthebadgersbecameaccustomedtothepresenceofpeople,itgavetheteamthechancetogetupclosetothemwithoutbeingthesubjectoftheanimals’curiosity—ortheirsuddenaggression.Thebadgers’eatingpatterns，whichhadbeendisrupted,returnedtonormalItalsoallowedtheteamtoobservemorecloselysomeoftheothercreaturesthatformworkingassociationswiththehoneybadger,astheseseemedtoadoptthebadgers'relaxedattitudewhennearhumans.41WhydidthewildlifeexpertsvisittheKalahariDesert?ATofindwherehoneybadgerslive.BToobservehowhoneybadgersbehave.CTocatchsomehoneybadgersforfood.DTofindoutwhyhoneybadgershaveabadreputation.答案：B职业培训教育网名师解析：第一段第三句：Theirmainaimwastostudythebadgers'movementsandbehaviourasdiscreetly(谨慎地)aspossible.可推断出此次调查的目的是广解獾的习性。42WhatdoesKitsoKhamasayabouthoneybadgers?ATheyshowinterestinthingstheyarenotfamiliarwith.BTheyarealwayslookingforfood.CTheydonotenjoyhumancompany.DItiscommonforthemtoattackpeople.答案：A44Whichofthefollowingisatypicalfeatureofmalebadgers?ATheydon'trunveryquickly.BTheyhuntoveraverylargearea.CTheydefendtheirterritoryfromotherbadgers.DTheyaremoreaggressivethanfemales.答案：B职业培训教育网名师解析：第四段讲了雄性獾的特征，它们能在短时间内行进很长的距离，因此B项正确。它们乐意同其他雄性獾分享领地，因此C错误。文中并没有提到它们在好斗性方面同雌性獾的区别，因此排除D项。45Whathappenedwhenhoneybadgersgotusedtohumansaroundthem?ATheylostinterestinpeople.BTheybecamelessaggressivetowardsothercreatures.CTheystartedeatingmore.DOtheranimalsstartedworkingwiththem.答案：A职业培训教育网名师解析：最后一段第一句：Asthebadgersbccamcaccustomedtothepresenceofpeople,itgavetheteamthechancctogetupclosetothemwithoutbeingthesubjcctoftheanimals’curiosity一ortheirsuddenaggression.獾在习惯人的存在之后兴趣就不那么浓厚。第5部分：补全短文(第46-50题，每题2分，共10分)下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。TheToughGrassthatSweetensOurLivesSugarcanewasonceawildgrassthatgrewinNewGuineaandwasusedbylocalpeopleforroofingtheirhousesandfencingtheirgardens.Graduallyadifferentvarietyevolvedwhichcontainedsucrose(蔗糖)andwaschewedonforitssweettaste.Overtime,sugarcanebecameahighlyvaluablecommercialplant,grownthroughouttheworld.______(46)Sugarbecameavitalingredientinallkindsofthings,fromconfectionery(糖果点心)tomedicine,and,asthedemandforsugargrew,theindustrybecamelargerandmoreprofitable.___________(47)Manycropswithered(枯萎)anddied，despitegrowers，attemptstosavethem,andtherewerefearsthatthehealthoftheplantwouldcontinuetodeteriorate.Inthe1960s，scientistsworkinginBarbadoslookedforwaystomakethecommercialspeciesstrongerandmoreabletoresistdisease.Theyexperimentedwithbreedingprogrammes，mixinggenesfromthewildspeciesofsugarcane,whichtendstobetougher,withgenesfromthemoredelicate,commercialtype.___________(48)Thissugarcaneisnotyetreadytobesoldcommercially,butwhenthishappens,itisexpectedtobeincrediblyprofitablefortheindustry.___________(49)Brazil,whichproducesonequarteroftheworld’ssugar,hascoordinatedaninternationalprojectunderProfessorPauloArrudooftheUniversidadeEstaudualdeCampinasinSaoPaulo.Teamsofexpertshaveworkedwithhimtodiscovermoreaboutwhichpartsofthegeneticstructureoftheplantareimportantfortheproductionofsugaranditsoverallhealth.Despitealltheresearch,however,westilldonotfullyunderstandhowthegenesfunctionInsugarcane._______(50)Thisgeneisparticularlyexcitingbecauseitmakestheplantresistanttorust,adiseasewhichprobablyoriginatedinIndia,butisnowcapableofinfectingsugarcaneacrosstheworld.Scientistsbelievetheywilleventuallybeabletogrowaplantwhichcannotbedestroyedbyrust.AEventually,acommercialplantwasdevelopedwhichwas5percentsweeterthanbefore,butalsomuchstrongerandlesslikelytodiefromdisease.BSincethe1960s,scientistshavebeenanalysingthemysteriesofthesugarcane’sgeneticcode.COnemajorgenehasbeenidentifiedbyDr.AngeliqueD'HontandherteaminMontpelier,France.DThemajorityoftheworld’ssugarnowcomesfromthisparticularcommercialspecies.ESugarcaneisnowmuchmorevigorousandthesupplyofsugaristhereforemoreguaranteed.第6部分：完形填空(第51-65题，每题1分，共15分)下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。TeachingandLearningManyteachersbelievethattheresponsibilitiesforlearningliewiththestudent,ifalongreadingassignmentisgiven,instructorsexpectstudentstobe_____________(51)withtheinformationinthereadingeveniftheydonotdiscussitinclassor___________(5