2017年06月六級真題（第1套）

淘寶店鋪：光速考研工作室機密*啟用前大學(xué)英語六級考試COLLEGEENGLISHTEST—BandSix—(2017年6月第1套)試題冊敬告考生一、在答題前，請認(rèn)真完成以下內(nèi)容:1.請檢查試題冊背面條形碼粘貼條、答題卡的印刷質(zhì)量，如有問題及時向監(jiān)考員反映，確認(rèn)無誤后完成以下兩點要求。2.請將試題冊背面條形碼粘貼條揭下后粘貼在答題卡1的條形碼粘貼框內(nèi)，并將姓名和準(zhǔn)考證號填寫在試題冊背面相應(yīng)位置。3.請在答題卡1和答題卡2指定位置用黑色簽字筆填寫準(zhǔn)考證號、姓名和學(xué)校名稱，并用HB-2B鉛筆將對應(yīng)準(zhǔn)考證號的信息點涂黑。二、在考試過程中，請注意以下內(nèi)容:1.所有題目必須在答題卡上規(guī)定位置作答，在試題冊上或答題卡上非規(guī)定位置的作答一律無效。2.請在規(guī)定時間內(nèi)在答題卡指定位置依次完成作文、聽力、閱讀、翻譯各部分考試，作答作文期間不得翻閱該試題冊。聽力錄音播放完畢后，請立即停止作答，監(jiān)考員將立即收回答題卡1，得到監(jiān)考員指令后方可繼續(xù)作答。3.作文題內(nèi)容印在試題冊背面，作文題及其他主觀題必須用黑色簽字筆在答題卡指定區(qū)域內(nèi)作答。4.選擇題均為單選題，錯選、不選或多選將不得分，作答時必須使用HB-2B鉛筆在答題卡上相應(yīng)位置填涂，修改時須用橡皮擦凈。三、以下情況按違規(guī)處理:1.未正確填寫(涂)個人信息，錯貼、不貼、毀損條形碼粘貼條。2.未按規(guī)定翻閱試題冊、提前閱讀試題、提前或在收答題卡期間作答。3.未用所規(guī)定的筆作答、折疊成毀損答題卡導(dǎo)致無法評卷。4.考試期間在非聽力考試時間佩戴耳機。全國大學(xué)英語四、六級考試委員會

PartIWriting(30minutes)Directions:Supposeyouareaskedtogiveadviceonwhethertomajorinscienceorhumanitiesatcollege,writeanessaytostateyouropinion.Youarerequiredtowriteatleast150wordsbutnomorethan200words.PartIIListeningComprehension(30minutes)SectionADirections:Inthissection,youwillheartwolongconversations.Attheendofeachconversation,youwillhearfourquestions.Boththeconversationandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions1to4arebasedontheconversationyouhavejustheard.1.A)Doingenjoyablework.B)Havingfriendlycolleagues.C)Earningacompetitivesalary.D)Workingforsupportivebosses.2.A)31%.B)20%.C)25%.D)73%.3.A)Thoseofasmallsize.B)Thoserunbywomen.C)Thosethatarewellmanaged.D)Thosefullofskilledworkers.4.A)Theycanhopfromjobtojobeasily.B)Theycanwinrecognitionoftheirwork.C)Theycanbetterbalanceworkandlife.D)Theycantakeonmorethanonejob.Questions5to8arebasedontheconversationyouhavejustheard.5.A)ItisabookofEuropeanhistory.B)Itisanintroductiontomusic.C)ItisaboutthecityofBruges.D)Itisacollectionofphotos.6.A)WhenpaintingtheconcerthallofBruges.B)WhenvacationinginanItaliancoastalcity.C)Whentakingpicturesforaconcertcatalogue.D)WhenwritingaboutBelgium'scoastalregions.7.A)TheentireEuropeancoastlinewillbesubmerged.B)TherichheritageofEuropewillbelostcompletely.C)TheseawaterofEuropewillbeseriouslypolluted.D)ThemajorEuropeanscenicspotswilldisappear.8.A)Itswaterwaysarebeingincreasinglypolluted.B)Peoplecannotgetaroundwithoutusingboats.C)Itattractslargenumbersoftouristsfromhomeandabroad.D)Touristsusewoodenpathstoreachtheirhotelsinthemorning.SectionBDirections:Inthissection,youwillheartwopassages.Attheendofeachpassage,youwillhearthreeorfourquestions.Boththepassageandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions9to12arebasedonthepassageyouhavejustheard.9.A)Theymakecarefulpreparationbeforehand.B)Theytaketoomanyirrelevantfactorsintoaccount.C)Theyspendtoomuchtimeanticipatingtheirdefeat.D)Theytryhardtoavoidgettingoffonthewrongfoot.10.A)Aperson'snervoussystemismorecomplicatedthanimagined.B)Golfersusuallyhavepositivementalimagesofthemselves.C)Mentalimagesofteninterferewithathletes'performance.D)Thinkinghasthesameeffectonthenervoussystemasdoing.11.A)Anticipatepossibleproblems.B)Makealistofdo'sanddon'ts.C)Picturethemselvessucceeding.D)Trytoappearmoreprofessional.12.A)Sheworeadesignerdress.B)Shewonherfirstjurytrial.C)Shedidnotspeakloudenough.D)Shepresentedmovingpictures.Questions13to15arebasedonthepassageyouhavejustheard.13.A)Itslong-termeffectsareyettobeproved.B)Itshealthbenefitshavebeenoverestimated.C)Ithelpspeopletoavoiddevelopingbreastcancer.D)Itenablespatientswithdiabetestorecoversooner.14.A)Itfocusedontheirwaysoflifeduringyoungadulthood.B)Ittrackedtheirchangeinfoodpreferencesfor20years.C)Itfocusedontheirdifferencefrommeninfiberintake.D)Ittrackedtheireatinghabitssincetheiradolescence.15.A)Fibermayhelptoreducehormonesinthebody.B)Fibermaybringmorebenefitstowomenthanmen.C)Fibermayimprovethefunctionofheartmuscles.D)Fibermaymakebloodcirculationmoresmooth.SectionCDirections:Inthissection,youwillhearthreerecordingsoflecturesortalksfollowedbythreeorfourquestions.Therecordingswillbeplayedonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions16to18arebasedontherecordingyouhavejustheard.16)A.Observingthechangesinmarketing.B)Conductingresearchonconsumerbehavior.C)Studyingthehazardsofyoungpeopledrinking.D)Investigatingtheimpactofmediaongovernment.17.A)Itisthecauseofmanystreetriots.B)Itisachiefconcernofparents.C)Itisgettingworseyearbyyear.D)Itisanactofsocialising.18.A)Theyspentaweekstudyingtheirownpurchasingbehavior.B)Theyresearchedtheimpactofmobilephonesonyoungpeople.C)Theyanalysedtheirfamilybudgetsovertheyears.D)Theyconductedathoroughresearchonadvertising.Questions19to22arebasedontherecordingyouhavejustheard.19.A)Itishelpingitsbankstoimproveefficiency.B)Itistryinghardtodoawaywithdirtymoney.C)Itisthefirstcountrytousecreditcardsintheworld.D)Itislikelytogiveuppapermoneyinthenearfuture.20.A)Whetheritispossibletotravelwithoutcarryinganyphysicalcurrency.B)Whetheritispossibletopredicthowmuchmoneyoneisgoingtospend.C)Whethertheabsenceofphysicalcurrencycausesapersontospendmore.D)Whethertheabsenceofphysicalcurrencyisgoingtoaffecteverydaylife.21.A)Therewasnofoodserviceonthetrain.B)Theserviceonthetrainwasnotgood.C)Therestaurantcaracceptedcashonly.D)Thecashinherhandbagwasmissing.22.A)Byputtingmoneyintoenvelopes.B)Bydrawingmoneyweekbyweek.C)Bylimitingtheirday-to-dayspending.D)Byrefusingtobuyanythingoncredit.Questions23to25arebasedontherecordingyouhavejustheard.23.A)Populationexplosion.B)Chronichunger.C)Extinctionofrarespecies.D)Environmentaldeterioration.24.A)Theycontributetooverpopulation.B)Abouthalfofthemareunintended.C)Theyhavebeenbroughtundercontrol.D)Themajorityofthemtendtoendhalfway.25.A)Itisessentialtothewellbeingofallspeciesonearth.B)Itisbecomingasubjectofinterdisciplinaryresearch.C)Itisneglectedinmanyofthedevelopingcountries.D)Itisbeginningtoattractpostgraduates'attention.PartIIIReadingComprehension(40minutes)SectionADirections:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.PleasemarkthecorrespondingletterforeachitemonAnswersheet2withasinglelinethroughthecentre.Youmaynotuseanyofthewordsinthebankmorethanonce.AfterbecomingpresidentofPurdueUniversityin2013,MitchDanielsaskedthefacultytoprovethattheirstudentshaveactuallyachievedoneofhighereducation'smostimportantgoals:criticalthinkingskills.Twoyearsbefore,anationwidestudyofcollegegraduateshadshownthatmorethanathirdhadmadeno__26__gainsinsuchmentalabilitiesduringtheirschoolyears.Mr.Danielsneededto__27__thehighcostofattendingPurduetoitsstudentsandtheirfamilies.Afterall,thepercentageofAmericanswhosayacollegedegreeis"veryimportant"hasfallen__28__inthelast5-6years.Purduenowhasapilottesttoassessstudents'criticalthinkingskills.YetlikemanycollegeteachersaroundtheU.S.,thefacultyremain__29__thattheirworkaseducatorscanbemeasuredbya"learning__30__"suchasagraduate'sabilitytoinvestigateandreason.However,theprofessorsneednotworrysomuch.Theresultsofarecentexperimentshowedthatprofessorscanuse__31__metricstomeasurehowwellstudentsdointhreekeyareas:criticalthinking,writtencommunication,andquantitativeliteracy.Despitethesuccessoftheexperiment,theactualresultsareworrisome,andmostly__32__earlierstudies.Theorganizersoftheexperimentconcludedthatfarfewerstudentswereachievingathighlevelsoncriticalthinkingthantheyweredoingforwrittencommunicationorquantitativeliteracy.Andthatconclusionisbasedonlyonstudentsnearinggraduation.Americanuniversities,despitetheirglobal__33__forexcellenceinteaching,haveonlybeguntodemonstratewhattheycanproduceinreal-worldlearning.Knowledge-baseddegreesarestillimportant,butemployersare__34__advancedthinkingskillsfromcollegegraduates.Iftheintellectualworthofacollegedegreecanbe__35__measured,morepeoplewillseekhighereducation—andcomeoutbetterthinkers.A)accuratelyB)confirmC)demandingD)doubtfulE)drasticallyF)justifyG)monopolizedH)outcomeI)predominanceJ)presumingK)reputationL)significantM)signifyN)simultaneouslyO)standardizedSectionBDirections:Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.AnswerthequestionsbymarkingthecorrespondingletteronAnswersheet2.ThePriceofOilandthePriceofCarbonA)Fossilfuelpricesarelikelytostay"lowforlong".Notwithstandingimportantrecentprogressindevelopingrenewablefuelsources,lowfossilfuelpricescoulddiscouragefurtherinnovationin,andadoptionof,cleanerenergytechnologies.Theresultwouldbehigheremissionsofcarbondioxideandothergreenhousegases.B)Policymakersshouldnotallowlowenergypricestoderailthecleanenergytransition.Actiontorestoreappropriatepriceincentives,notablythroughcorrectivecarbonpricing,isurgentlyneededtolowertheriskofirreversibleandpotentiallydevastatingeffectsofclimatechange.Thatapproachalsooffersfiscalbenefits.C)Oilpriceshavedroppedbyover60%sinceJune2014.Acommonlyheldviewintheoilindustryisthat"thebestcureforlowoilpricesislowoilprices".Thereasoningbehindthissayingisthatlowoilpricesdiscourageinvestmentinnewproductioncapacity,eventuallyshiftingtheoilsupplycurvebackwardandbringingpricesbackupasexistingoilfields—whichcanbetappedatrelativelylowmarginalcost—aredepleted.Infact,inlinewithpastexperience,capitalexpenditureintheoilsectorhasdroppedsharplyinmanyproducingcountries,includingtheUnitedStates.Thedynamicadjustmenttolowoilpricesmay,however,bedifferentthistimearound.D)Oilpricesareexpectedtoremainlowerforlonger.Theadventofnewtechnologieshasaddedabout4.2millionbarrelsperdaytothecrudeoilmarket,contributingtoaglobalover-supply.Inaddition,otherfactorsareputtingdownwardpressureonoilprices:changeinthestrategicbehavioroftheOrganizationofPetroleumExportingCountries,theprojectedincreaseinIranianexports,thescaling-downofglobaldemand(especiallyfromemergingmarkets),thelong-termdropinpetroleumconsumptionintheUnitedStates,andsomedisplacementofoilbysubstitutes.Theselikelypersistentforces,likethegrowthofshale(頁巖)oil,pointtoa"lowforlong"scenario.Futuresmarkets,whichshowonlyamodestrecoveryofpricestoaround$60abarrelby2019,supportthisview.E)Naturalgasandcoal—alsofossilfuels—havesimilarlyseenpricedeclinesthatlooktobelong-lived.Coalandnaturalgasaremainlyusedforelectricitygeneration,whereasoilisusedmostlytopowertransportation,yetthepricesofalltheseenergysourcesarelinked.TheNorthAmericanshalegasboomhasresultedinrecordlowpricesthere.TherecentdiscoveryofthegiantZohrgasfieldofftheEgyptiancoastwilleventuallyhaveimpactonpricingintheMediterraneanregionandEurope,andthereissignificantdevelopmentpotentialinmanyotherplaces,notablyArgentina.Coalpricesalsoarelow,owingtoover-supplyandthescaling-downofdemand,especiallyfromChina,whichbumshalfoftheworld'scoal.F)Technologicalinnovationshaveunleashedthepowerofrenewablessuchaswind,hydro,solar,andgeothermal(地?zé)?.EvenAfricaandtheMiddleEast,hometoeconomiesthatareheavilydependentonfossilfuelexports,haveenormouspotentialtodeveloprenewables.Forexample,theUnitedArabEmirateshasendorsedanambitioustargettodraw24%ofitsprimaryenergyconsumptionfromrenewablesourcesby2021.G)Progressinthedevelopmentofrenewablescouldbefragile,however,iffossilfuelpricesremainlowforlong.Renewablesaccountforonlyasmallshareofglobalprimaryenergyconsumption,whichisstilldominatedbyfossilfuels—30%eachforcoalandoil,25%fornaturalgas.Butrenewableenergywillhavetodisplacefossilfuelstoamuchgreaterextentinthefuturetoavoidunacceptableclimaterisks.H)Unfortunately,thecurrentlowpricesforoil,gas,andcoalmayprovidelittleincentiveforresearchtofindevencheapersubstitutesforthosefuels.Thereisstrongevidencethatbothinnovationandadoptionofcleanertechnologyarestronglyencouragedbyhigherfossilfuelprices.Thesameistruefornewtechnologiesforalleviatingfossilfuelemissions.I)Thecurrentlowfossilfuelpriceenvironmentwillthuscertainlydelaytheenergytransitionfromfossilfueltocleanenergysources.Unlessrenewablesbecomecheapenoughthatsubstantialcarbondepositsareleftundergroundforaverylongtime,ifnotforever,theplanetwilllikelybeexposedtopotentiallycatastrophicclimaterisks.J)Someclimateimpactsmayalreadybediscernible.Forexample,theUnitedNationsChildren'sFundestimatesthatsome11millionchildreninAfricafacehunger,disease,andwatershortagesasaresultofthestrongestElNino(厄爾尼諾)weatherphenomenonindecades.ManyscientistsbelievethatElNinoevents,causedbywarminginthePacific,arebecomingmoreintenseasaresultofclimatechange.K)NationsfromaroundtheworldhavegatheredinParisfortheUnitedNationsClimateChangeConference,COP21,withthegoalofauniversalandpotentiallylegally-bindingagreementonreducinggreenhousegasemissions.Weneedverybroadparticipationtofullyaddresstheglobaltragedythatresultswhencountriesfailtotakeintoaccountthenegativeimpactoftheircarbonemissionsontherestoftheworld.Moreover,non-participationbynations,ifsufficientlywidespread,canunderminethepoliticalwillofparticipatingcountriestoact.L)ThenationsparticipatingatCOP21arefocusingonquantitativeemissions-reductioncommitments.Economicreasoningshowsthattheleastexpensivewayforeachcountryistoputapriceoncarbonemissions.Thereasonisthatwhencarbonispriced,thoseemissionsreductionsthatareleastcostlytoimplementwillhappenfirst.TheInternationalMonetaryFundcalculatesthatcountriescangeneratesubstantialfiscalrevenuesbyeliminatingfossilfuelsubsidiesandlevyingcarbonchargesthatcapturethedomesticdamagecausedbyemissions.Ataxonupstreamcarbonsourcesisoneeasywaytoputapriceoncarbonemissions,althoughsomecountriesmaywishtouseothermethods,suchasemissionstradingschemes.Inordertomaximizeglobalwelfare,everycountry'scarbonpricingshouldreflectnotonlythepurelydomesticdamagefromemissions,butalsothedamagetoforeigncountries.M)Settingtherightcarbonpricewillthereforeefficientlyalignthecostspaidbycarbonuserswiththetruesocialopportunitycostofusingcarbon.Byraisingrelativedemandforcleanenergysources,acarbonpricewouldalsohelpalignthemarketreturntoclean-energyinnovationwithitssocialreturn,spurringtherefinementofexistingtechnologiesandthedevelopmentofnewones.Anditwouldraisethedemandfortechnologiessuchascarboncaptureandstorage,spurringtheirfurtherdevelopment.Ifnotcorrectedbytheappropriatecarbonprice,lowfossilfuelpricesarenotaccuratelysignalingtomarketsthetruesocialprofitabilityofcleanenergy.Whilealternativeestimatesofthedamagefromcarbonemissionsdiffer,andit'sespeciallyhardtoreckonthelikelycostsofpossiblecatastrophicclimateevents,mostestimatessuggestsubstantialnegativeeffects.N)Directsubsidiestoresearchanddevelopmenthavebeenadoptedbysomegovernmentsbutareapoorsubstituteforacarbonprice:theydoonlypartofthejob,leavinginplacemarketincentivestoover-usefossilfuelsandtherebyaddtothestockofatmosphericgreenhousegaseswithoutregardtothecollateral(附帶的)costs.O)ThehopeisthatthesuccessofCOP21opensthedoortofutureinternationalagreementoncarbonprices.Agreementonaninternationalcarbon-pricefloorwouldbeagoodstartingpointinthatprocess.Failuretoaddresscomprehensivelytheproblemofgreenhousegasemissions,however,exposesallgenerations,presentandfuture,toincalculablerisks.36.Anumberoffactorsaredrivingdowntheglobaloilpricesnotjustfornowbutintheforeseeablefuture.37.Pricingcarbonprovesthemosteconomicalwaytoreducegreenhousegasemissions.38.ItisestimatedthatextremeweatherconditionshaveendangeredthelivesofmillionsofAfricanchildren.39.Thepricesofcoalarelowasaresultofover-supplyanddecreasingdemand.40.Higherfossilfuelpricesprovetobeconducivetoinnovationandapplicationofcleanertechnology.41.Iffossilfuelpricesremainlowforalongtime,itmayleadtohigheremissionsofgreenhousegases.42.Fossilfuelsremainthemajorsourceofprimaryenergyconsumptionintoday'sworld.43.Evenmajorfossilexportingcountrieshavegreatpotentialtodeveloprenewableenergies.44.Greenhousegasemissions,ifnotproperlydealtwith,willposeendlessrisksformankind.45.Itisurgentforgovernmentstoincreasethecostofusingfossilfuelstoanappropriateleveltolessenthecatastrophiceffectsofclimatechange.SectionCDirections:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).YoushoulddecideonthebestchoiceandmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.PassageOneQuestions46to50arebasedonthefollowingpassage.Opendatasharersarestillintheminorityinmanyfields.Althoughmanyresearchersbroadlyagreethatpublicaccesstorawdatawouldacceleratescience,mostarereluctanttoposttheresultsoftheirownlaborsonline.Somecommunitieshaveagreedtoshareonline—geneticists,forexample,postDNAsequencesattheGenBankrepository(庫),andastronomersareaccustomedtoaccessingimagesofgalaxiesandstarsfrom,say,theSloanDigitalSkySurvey,atelescopethathasobservedsome500millionobjects—buttheseremaintheexception,nottherule.Historically,scientistshaveobjectedtosharingformanyreasons:itisalotofwork;untilrecently,gooddatabasesdidnotexist;grantfunderswerenotpushingforsharing;ithasbeendifficulttoagreeonstandardsforformattingdata;andthereisnoagreedwaytoassigncreditfordata.Butthebarriersaredisappearing,inpartbecausejournalsandfundingagenciesworldwideareencouragingscientiststomaketheirdatapublic.Lastyear,theRoyalSocietyinLondonsaidinitsreportthatscientistsneedto"shiftawayfromaresearchculturewheredataisviewedasaprivatepreserve".Fundingagenciesnotethatdatapaidforwithpublicmoneyshouldbepublicinformation,andthescientificcommunityisrecognizingthatdatacannowbeshareddigitallyinwaysthatwerenotpossiblebefore.Tomatchthegrowingdemand,servicesarespringinguptomakeiteasiertopublishresearchproductsonlineandenableotherresearcherstodiscoverandcitethem.Althoughcallstosharedataoftenconcentrateonthemoraladvantagesofsharing,thepracticeisnotpurelyaltruistic(利他的).Researcherswhosharegetplentyofpersonalbenefits,includingmoreconnectionswithcolleagues,improvedvisibilityandincreasedcitations.Themostsuccessfulsharers—thosewhosedataaredownloadedandcitedthemostoftengetnoticed,andtheirworkgetsused.Forexample,oneofthemostpopulardatasetsonmultidisciplinaryrepositoryDryadisaboutwooddensityaroundtheworld;ithasbeendownloaded5,700times.Co-authorAmyZannethinksthatusersprobablyrangefromclimate-changeresearcherswantingtoestimatehowmuchcarbonisstoredinbiomass,toforesterslookingforinformationondifferentgradesoftimber."I'dmuchprefertohavemydatausedbythemaximumnumberofpeopletoasktheirownquestions,"shesays."It'simportanttoallowreadersandreviewerstoseeexactlyhowyouarriveatyourresults.Publishingdataandcodeallowsyoursciencetobereproducible."Evenpeoplewhosedataarelesspopularcanbenefit.Bymakingtheefforttoorganizeandlabelfilessootherscanunderstandthem,scientistsbecomemoreorganizedandbetterdisciplinedthemselves,thusavoidingconfusionlateron.46.Whatdomanyresearchersgenerallyaccept?A)Itisimperativetoprotectscientists'patents.B)Repositoriesareessentialtoscientificresearch.C)Opendatasharingismostimportanttomedicalscience.D)Opendatasharingisconducivetoscientificadvancement.47.Whatistheattitudeofmostresearcherstowardsmakingtheirowndatapublic?A)Opposed.B)Ambiguous.C)Liberal.D)Neutral.48.Accordingtothepassage,whatmighthinderopendatasharing?A)Thefearofmassivecopying.B)Thelackofaresearchculture.C)Thebeliefthatresearchdataisprivateintellectualproperty.D)Theconcernthatcertainagenciesmaymakeaprofitoutofit.49.Whathelpsliftsomeofthebarrierstoopendatasharing?A)Theever-growingdemandforbigdata.B)Theadvancementofdigitaltechnology.C)Thechangingattitudeofjournalsandfunders.D)Thetrendofsocialandeconomicdevelopment.50.Dryadservesasanexampletoshowhowopendatasharing________.A)isbecomingincreasinglypopularB)benefitssharersandusersalikeC)makesresearcherssuccessfulD)savesbothmoneyandlaborPassageTwoQuestions51to55arebasedonthefollowingpassage.Macy'sreporteditssalesplunged5.2%inNovemberandDecemberatstoresopenmorethanayear,adisappointingholidayseasonperformancethatcappedadifficultyearforadepartmentstorechainfacingwide-rangingchallenges.ItsflagshipstoresinmajorU.S.citiesdependheavilyoninternationaltouristspending,whichshrankatmanyretailersduetoastrongdollar.Meanwhile,Macy'shassimplystruggledtolureconsumerswhoaremoreinterestedinspendingontravelordiningoutthanonnewclothesoraccessories.ThecompanyblamedmuchofthepoorperformanceinNovemberandDecemberonunseasonablywarmweather."About80%ofourcompany'syear-over-yeardeclinesincomparablesalescanbeattributedtoshortfalls(短缺)incold-weathergoods,"saidchiefexecutiveTenyLundgreninapressrelease.Thispromptedthecompanytocutitsforecastsforthefullfourthquarter.However,it'sclearthatMacy'sbelievesitstroublesrundeeperthanatemporaryaberration(偏離)offthethermometer.Theretailgiantsaidthepoorfinancialperformancethisyearhaspushedittobeginimplementing$400millionincost-cuttingmeasures.Thecompanypledgedtocut600back-officepositions,thoughsome150workersinthoseroleswouldbereassignedtootherjobs.Italsoplanstooffer"voluntaryseparation"packagesto165seniorexecutives.Itwillslashstaffingatitsfleetof770stores,amoveaffectingsome3,000employees.Theretaileralsoannouncedthelocationsof36storesitwillcloseinearly2016.Thecompanyhadpreviouslyannouncedtheplannedclosures,buthadnotsaidwhichlocationswouldbeaf