2017考研英语一真题及参考答案

2017考研英语一真题及参照答案SectionIUseofEnglishDirections:Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,CorDontheANSWERSHEET.(10points)Couldahugadaykeepthedoctoraway?Theanswermaybearesounding"yes!"1helpingyoufeelcloseand2topeopleyoucareabout,itturnsoutthathugscanbringa3ofhealthbenefitstoyourbodyandmind.Believeitornot,awarmembracemightevenhelpyou4gettingsickthiswinter.Inarecentstudy5over400healthadults,researchersfromCarnegieMellonUniversityinPennsylvaniaexaminedtheeffectsofperceivedsocialsupportandthereceiptofhugs6theparticipants'susceptibilitytodevelopingthecommoncoldafterbeing7tothevirus.Peoplewhoperceivedgreatersocialsupportwerelesslikelytocome8withacold,andtheresearchers9thatthestress-reducingeffectsofhugging10about32percentofthatbeneficialeffect.11amongthosewhogotacold,theoneswhofeltgreatersocialsupportandreceivedmorefrequenthugshadlesssevere12."Huggingprotectspeoplewhoareunderstressfromthe13riskforcoldsthat'susually14withstress,"notesSheldonCohen,aprofessorofpsychologyatCarnegie.Hugging"isamarkerofintimacyandhelps15thefeelingthatothersaretheretohelp16difficulty."精选文档Someexperts17thestress-reducing,health-relatedbenefitsofhuggingtothereleaseofoxytocin,oftencalled"thebondinghormone"18itpromotesattachmentinrelationships,includingthatbetweenmotherandtheirnewbornbabies.Oxytocinismadeprimarilyinthecentrallowerpartofthebrain,andsomeofitisreleasedintothebloodstream.Butsomeofit19inthebrain,whereit20mood,behaviorandphysiology.1.[A]Unlike[B]Besides[C]Despite[D]Throughout【答案】[B]Besides2.[A]connected[B]restricted[C]equal[D]inferior【答案】[A]connected3.[A]choice[B]view[C]lesson[D]host【答案】[D]host4.[A]recall[B]forget[C]avoid[D]keep【答案】[C]avoid5.[A]collecting[B]involving[C]guiding[D]affecting【答案】[B]involving6.[A]of[B]in[C]at[D]on【答案】[D]on7.[A]devoted[B]exposed[C]lost[D]attracted精选文档【答案】[B]exposed8.[A]across[B]along[C]down[D]out【答案】[C]down9.[A]calculated[B]denied[C]doubted[D]imagined【答案】[A]calculated10.[A]served[B]required[C]restored[D]explained【答案】[D]explained11.[A]Even[B]Still[C]Rather[D]Thus【答案】[A]Even12.[A]defeats[B]symptoms[C]tests[D]errors【答案】[B]symptoms13.[A]minimized[B]highlighted[C]controlled[D]increased【答案】[D]increased14.[A]equipped[B]associated[C]presented[D]compared【答案】[B]associated15.[A]assess[B]moderate[C]generate[D]record精选文档【答案】[C]generate16.[A]inthefaceof[B]intheformof[C]inthewayof[D]inthenameof【答案】[A]inthefaceof17.[A]transfer[B]commit[C]attribute[D]return【答案】[C]attribute18.[A]because[B]unless[C]though[D]until【答案】[A]because19.[A]emerges[B]vanishes[C]remains[D]decreases【答案】[C]remains20.[A]experiences[B]combines[C]justifies[D]influences【答案】[D]influencesText1Firsttwohours,nowthreehours—thisishowfarinadvanceauthoritiesarerecommendingpeopleshowuptocatchadomesticflight,atleastatsomemajorU.S.airportswithincreasinglymassivesecuritylines.Americansarewillingtotoleratetime-consumingsecurityprotocolsinreturnforincreasedsafety.ThecrashofEgyptAirFlight804,which精选文档terroristsmayhavedownedovertheMediterraneanSea,providesanothertragicreminderofwhy.Butdemandingtoomuchofairtravelersorprovidingtoolittlesecurityinreturnunderminespublicsupportfortheprocess.Anditshould:WastedtimeisadragonAmericans'economicandprivatelives,nottomentioninfuriating.Lastyear,theTransportationSecurityAdministration(TSA)foundinasecretcheckthatundercoverinvestigatorswereabletosneakweapons—bothfakeandreal—pastairportsecuritynearlyeverytimetheytried.Enhancedsecuritymeasuressincethen,combinedwithariseinairlinetravelduetotheimprovingeconomyandlowoilprices,haveresultedinlongwaitsatmajorairportssuchasChicago'sO'HareInternational.Itisnotyetclearhowmuchmoreeffectiveairlinesecurityhasbecome—butthelinesareobvious.Partoftheissueisthatthegovernmentdidnotanticipatethesteepincreaseinairlinetravel,sotheTSAisnowrushingtogetnewscreenersontheline.Partoftheissueisthatairportshaveonlysomuchroomforscreeninglanes.Anotherfactormaybethatmorepeoplearetryingtooverpacktheircarry-onbagstoavoidchecked-baggagefees,thoughtheairlinesstronglydisputethis.ThereisonesteptheTSAcouldtakethatwouldnotrequireremodelingairportsorrushingtohire:EnrollmorepeopleinthePreCheckprogram.PreCheckissupposedtobeawin-winfortravelersandtheTSA.Passengerswhopassabackgroundcheckareeligibletouseexpeditedscreeninglanes.ThisallowstheTSAtofocusontravelerswhoarehigherrisk,savingtimeforeveryoneinvolved.TSAwantstoenroll25millionpeopleinPreCheck.Ithasnotgottenanywhereclosetothat,andonebigreasonisstickershock:Passengersmustpay$85everyfiveyearstoprocesstheirbackgroundchecks.Sincethebeginning,thispricetaghasbeenPreCheck'sfatalflaw.Upcomingreformsmightbringthepricetoamorereasonable精选文档level.ButCongressshouldlookintodoingsodirectly,byhelpingtofinancePreCheckenrollmentortocutcostsinotherways.TheTSAcannotcontinuedivertingresourcesintounderusedPreChecklaneswhilemostofthetravelingpublicsuffersinunnecessarylines.Itislongpasttimetomaketheprogramwork.21.ThecrashofEgyptAirFlight804ismentionedtoexplainAmerican’stoleranceofcurrentsecuritychecks.stresstheurgencytostrengthensecurityworldwide.highlightthenecessityofupgradingmajorU.S.airports.emphasizetheimportanceofprivacyprotection.Whichofthefollowingcontributestolongwaitsatmajorairports?Newrestrictionsoncarry-onbags.ThedecliningefficiencyoftheTSA.Anincreaseinthenumberoftravellers.Frequentunexpectedsecretchecks.23.Theword“expedited”(Liner4,Para.5)isclosetinmeaningto[A]quieter.精选文档cheaper.wider.faster.OneproblemwiththePreCheckprogramis[A]adramaticreductionofitsscale.[B]itswrongly-directedimplementation.[C]thegovernment’sreluctancetobackit.[D]anunreasonablepriceforenrollment.Whichofthefollowingwouldbethebestforthetext?[A]LessScreeningforMoreSafety[B]PreCheck–aBelatedSolution[C]GettingStuckinSecurityLines[D]UnderusedPreCheckLanes答案：21-25ACDDCText2“TheancientHawaiianswereastronomers,”wroteQueenLiliuokalani,Hawaii'slastreigningmonarch,in1897.Starwatcherswereamongthemost精选文档esteemedmembersofHawaiiansociety.Sadly,allisnotwellwithastronomyinHawaiitoday.ProtestshaveeruptedoverconstructionoftheThirtyMeterTelescope(TMT),agiantobservatorythatpromisestorevolutionizehumanity'sviewofthecosmos.AtissueistheTMT'splannedlocationonMaunaKea,adormantvolcanoworshipedbysomeHawaiiansasthepiko,thatconnectstheHawaiianIslandstotheheavens.ButMaunaKeaisalsohometosomeoftheworld'smostpowerfultelescopes.RestedinthePacificOcean,MaunaKea'speakrisesabovethebulkofourplanet'sdenseatmosphere,whereconditionsallowtelescopestoobtainimagesofunsurpassedclarity.OppositiontotelescopesonMaunaKeaisnothingnew.AsmallbutvocalgroupofHawaiiansandenvironmentalistshavelongviewedtheirpresenceasdisrespectfarsacredlandandapainfulreminderoftheoccupationofwhatwasonceasovereignnation.Someblameforthecurrentcontroversybelongstoastronomers.Intheireagernesstobuildbiggertelescopes,theyforgotthatscienceisnottheonlywayofunderstandingtheworld.TheydidnotalwaysprioritizetheprotectionofMaunaKea'sfragileecosystemsoritsholinesstotheislands'inhabitants.Hawaiiancultureisnotarelicofthepast;itisalivingcultureundergoingarenaissancetoday.Yetsciencehasaculturalhistory,too,withrootsgoingbacktothedawnofcivilization.ThesamecuriositytofindwhatliesbeyondthehorizonthatfirstbroughtearlyPolynesianstoHawaii'sshoresinspiresastronomerstodaytoexploretheheavens.CallstodisassemblealltelescopesonMaunaKeaortobanfuturedevelopmentthereignoretherealitythatastronomyandHawaiianculturebothseektoanswerbigquestionsaboutwhoweare,wherewecomefromandwherewearegoing.Perhapsthatiswhyweexplorethestarryskies,asifansweringaprimalcallingtoknowourselvesandourtrueancestralhomes.精选文档TheastronomycommunityismakingcompromisestochangeitsuseofMaunaKea.TheTMTsitewaschosentominimizethetelescope’svisibilityaroundtheislandandtoavoidarchaeologicalandenvironmentalimpact.TolimitthenumberoftelescopesonMaunaKea,oldoneswillberemovedattheendoftheirlifetimesandtheirsitesreturnedtoanaturalstate.ThereisnoreasonwhyeveryonecannotbewelcomedonMaunaKeatoembracetheirculturalheritageandtostudythestars.QueenLiliuokalani’sremarkinParagraph1indicates[A]herconservativeviewonthehistoricalroleofastronomy.[B]theimportanceofastronomyinancientHawaiiansociety.[C]theregrettabledeclineofastronomyinancienttimes.[D]herappreciationofstarwatchers’featsinhertime.MaunaKeaisdeemedasanidealastronomicalsitedueto[A]itsgeographicalfeatures.[B]itsprotectivesurroundings.[C]itsreligiousimplications.[D]itsexistinginfrastructure.TheconstructionoftheTMTisopposedbysomelocalspartlybecause[A]itmayriskruiningtheirintellectuallife.精选文档itremindsthemofahumiliatinghistory.theirculturewillloseachanceofrevival.theyfearlosingcontrolofMaunaKea.29.ItcanbeinferredfromParagraph5thatprogressintoday’sastronomyisfulfillingthedreamsofancientHawaiians.helpsspreadHawaiiancultureacrosstheworld.mayuncovertheoriginofHawaiianculture.[D]willeventuallysoftenHawaiians’hostility.30.Theauthor’sattitudetowardchoosingMaunaKeaastheTMTsiteisoneofseverecriticism.passiveacceptance.slighthesitancy.fullapproval.答案：26-30DABCCText3精选文档RobertF.Kennedyoncesaidthatacountry'sGDPmeasures“everythingexceptthatwhichmakeslifeworthwhile.”WithBritainvotingtoleavetheEuropeanUnion,andGDPalreadypredictedtoslowasaresult,itisnowatimelymomenttoassesswhathewasreferringto.ThequestionofGDPanditsusefulnesshasannoyedpolicymakersforoverhalfacentury.Manyarguethatitisaflawedconcept.Itmeasuresthingsthatdonotmatterandmissesthingsthatdo.Bymostrecentmeasures,theUK’sGDPhasbeentheenvyoftheWesternworld,withrecordlowunemploymentandhighgrowthfigures.Ifeverythingwasgoingsowell,thenwhydidover17millionpeoplevoteforBrexit,despitethewarningsaboutwhatitcoulddototheircountry’seconomicprospects?Arecentannualstudyofcountriesandtheirabilitytoconvertgrowthintowell-beingshedssomelightonthatquestion.Acrossthe163countriesmeasured,theUKisoneofthepoorestperformersinensuringthateconomicgrowthistranslatedintomeaningfulimprovementsforitscitizens.RatherthanjustfocusingonGDP,over40differentsetsofcriteriafromhealth,educationandcivilsocietyengagementhavebeenmeasuredtogetamoreroundedassessmentofhowcountriesareperforming.Whileallofthesecountriesfacetheirownchallenges,thereareanumberofconsistentthemes.Yes,therehasbeenabuddingeconomicrecoverysincethe2008globalcrash,butinkeyindicatorsinareassuchashealthandeducation,majoreconomieshavecontinuedtodecline.Yetthisisn’tthecasewithallcountries.SomerelativelypoorEuropeancountrieshaveseenhugeimprovementsacrossmeasuresincludingcivilsociety,incomeequalityandenvironment.Thisisalessonthatrichcountriesregardedasthesolemeasureofacountrydifferent.

canlearn:WhenGDPisnolonger’ssuccess,theworldlooksvery精选文档SowhatKennedywasreferringtowasthatwhileGDPhasbeenthemostcommonmethodformeasuringtheeconomicactivityofnations,asameasure,itisnolongerenough.Itdoesnotincludeimportantfactorssuchasenvironmentalqualityoreducationoutcomes–allthingsthatcontributetoaperson'ssenseofwell-being.ThesharphittogrowthpredictedaroundtheworldandintheUKcouldleadtoadeclineintheeverydayserviceswedependonforourwell-beingandforgrowth.Butpolicymakerswhorefocuseffortsonimprovingwell-beingratherthansimplyworryingaboutGDPfigurescouldavoidtheforecasteddoomandmayevenseeprogress.RobertF.Kennedyiscitedbecausehe[A]praisedtheUKforitsGDP.[B]identifiedGDPwithhappiness.[C]misinterpretedtheroleofGDP.[D]hadalowopinionofGDP.ItcanbeinferredfromParagraph2that[A]theUKisreluctanttoremolditseconomicpattern.[B]theUKwillcontributelesstotheworldeconomy.[C]GDPasthemeasureofsuccessiswidelydefiedintheUK.[D]policymakersintheUKarepayinglessattentiontoGDP.精选文档Whichofthefollowingistrueabouttherecentannualstudy?[A]ItexcludesGDPasanindicator.[B]Itissponsoredby163countries.[C]Itscriteriaarequestionable.[D]Itsresultsareenlightening.Inthelasttwoparagraphs,theauthorsuggeststhat[A]theUKispreparingforaneconomicboom.[B]highGDPforeshadowsaneconomicdecline.[C]itisessentialtoconsiderfactorsbeyondGDP.[D]itrequirescautiontohandleeconomicissues.Whichofthefollowingisthebestforthetext?[A]HighGDPButInadequateWell-being,aUKlesson[B]GDPfigures,aWindowonGlobalEconomicHealth[C]RobertF.Kennedy,aTerminatorofGDP[D]Brexit,theUK’sGatewaytoWell-being答案：31-35DCDCA精选文档Text4Inarareunanimousruling,theUSSupremeCourthasoverturnedthecorruptionconvictionofaformerVirginiagovernor,RobertMcDonnell.Butitdidsowhileholdingitsnoseattheethicsofhisconduct,whichincludedacceptinggiftssuchasaRolexwatchandaFerrariAutomobilefromacompanyseekingaccesstogovernment.Thehighcourt’sdecisionsaidthejudgeinMr.McDonnell’strailfailedtotellajurythatitmustlookonlyathis“officialacts,”ortheformergovernor’sdecisionson“specific”and“unsettled”issuesrelatedtohisduties.Merelyhelpingagift-givergainaccesstootherofficials,unlessdonewithclearintenttopressurethoseofficials,isnotcorruption,thejusticesfound.Thecourtdidsuggestthatacceptingfavorsinreturnforopeningdoorsis“distasteful”and“nasty.”Butunderanti-briberylaws,proofmustbemadeofconcretebenefits,suchasapprovalofacontractorregulation.Simplyarrangingameeting,makingaphonecall,orhostinganeventisnotan“officialact.”Thecourt’srulingislegallysoundindefiningakindoffavoritismthatisnotcriminal.Electedleadersmustbeallowedtohelpsupportersdealwithbureaucraticproblemswithoutfearofprosecutionofbribery.“Thebasiccompactunderlyingrepresentativegovernment,”wroteChiefJusticeJohnRobertsforthecourt,“assumesthatpublicofficialswillhearfromtheirconstituentsandactontheirconcerns.”Buttherulingreinforcestheneedforcitizensandtheirelectedrepresentatives,notthecourts,toensureequalityofaccesstogovernment.Officialsmustnotbeallowedtoplayfavoritesinproviding精选文档informationorinarrangingmeetingssimplybecauseanindividualorgroupprovidesacampaigndonationorapersonalgift.Thistypeofintegrityrequireswill-enforcedlawsingovernmenttransparency,suchasrecordsofofficialmeetings,rulesonlobbying,andinformationabouteachelectedleader’ssourceofwealth.Favoritisminofficialaccesscanfanpublicperceptionsofcorruption.Butitisnotalwayscorruption.Ratherofficialsmustavoiddoublestandards,ordifferenttypesofaccessforaveragepeopleandthewealthy.Ifconnectionscanbebought,abasicpremiseofdemocraticsociety–thatallareequalintreatmentbygovernment-isundermined.Goodgovernmentrestsonanunderstandingoftheinherentworthofeachindividual.Thecourt’srulingisastepforwardinthestruggleagainstbothcorruptionandofficialfavoritism.Theunderlinedsentence(Para.1)mostprobablyshowsthatthecourt[A]avoideddefiningtheextentofMcDonnell’sduties.[B]madenocompromiseinconvictingMcDonnell.[C]wascontemptuousofMcDonnell’sconduct.[D]refusedtocommentonMcDonnell’sethics.AccordingtoParagraph4,anofficialactisdeemedcorruptiveonlyifitinvolves[A]concretereturnsforgift-givers.精选文档sizablegainsintheformofgifts.leakingsecretsintentionally.breakingcontractsofficially.38.Thecourt’srulingisdontheassumptionthatpublicofficialsareallowedtofocusontheconcernsoftheirsupporters.qualifiedtodealindependentlywithbureaucraticissues.justifiedinaddressingtheneedsoftheirconstituents.exemptfromconvictiononthechargeoffavoritism.Well-enforcedlawsingovernmenttransparencyareneededto[A]awakentheconscienceofofficials.[B]guaranteefairplayinofficialaccess.[C]allowforcertainkindsoflobbying.[D]inspirehopesinaveragepeople.40.Theauthor’sattitudetowardthecourt’srulingissarcastic.tolerant.精选文档skeptical.supportive.答案：36-40CBABDPartCDirections:ReadthefollowingtextcarefullyandthentranslatetheunderlinedsegmentsintoChinese.YourtranslationshouldbewrittenneatlyontheANSWERSHEET.(10points)ThegrowthoftheuseofEnglishastheworld`sprimarylanguageforinternationalcommunicationhasobviouslybeencontinuingforseveraldecades.(46)ButevenasthenumberofEnglishspeakersexpandsfurthertherearesignsthattheglobalpredominanceofthelanguagemayfadewithintheforeseeablefuture.Complexinternational,economic,technologicalandculturechangecouldstarttodiminishtheleadingpositionofEnglishasthelanguageoftheworldmarket,andUKinterestswhichenjoyadvantagefromthebreathofEnglishusagewouldconsequentlyfacenewpressures.ThoserealisticpossibilitiesarehighlightedinthestudypresentedbyDavidGraddol(47)Hisanalysisshouldthereforeendanyself-contentednessamongthosewhomaybelievethattheglobalpositionofEnglishissostablethattheyounggenerationoftheUnitedKingdomdonotneedadditionallanguagecapabilities.精选文档DavidGraddolconcludesthatmonoglotEnglishgraduatesfaceableakeconomicfutureasqualifiedmultilingualyoungstersfromothercountriesareprovingtohaveacompetitiveadvantageovertheirBritishcounterpartsinglobalcompaniesandorganizations.Alongsidethat,(48)manycountriesareintroducingEnglishintotheprimary-schoolcurriculumbutBritishschoolchildrenandstudentsdonotappeartobegaininggreaterencouragementtoachievefluencyinotherlanguages.Iflefttothemselves,suchtrendswilldiminishtherelativestrengthoftheEnglishlanguageininternationaleducationmarketsasthedemandforeducationalresourcesinlanguages,suchasSpanish,ArabicorMandaringrowsandinternationalbusinessprocessoutsourcinginotherlanguagesuchasJapanese,FrenchandGerman,spreads.(49)ThechangesidentifiedbyDavidGraddolallpresentclearandmajorchallengestoUK`sprovidersofEnglishlanguageteachingtopeopleofothercountriesandtobroadereducationbusinesssectors.TheEnglishlanguageteachingsectordirectlyearnsnearly&1.3billionfortheUKininvisibleexportsandourothereducationrelatedexploresearnupto&10billionayearmore.Astheinternationaleducationmarketexpands,therecentslowdowninthenumberofinternationalstudentsstudyinginthemainEnglish-speakingcountriesislikelytocontinue,especiallyiftherearenoeffectivestrategicpoliciestopreventsuchslippage.Theanticipationofpossibleshiftsindemandprovidedbythisstudyissignificant:(50)Itgivesabasistoallorganizationwhichseektopromotethelearningandverydifferentoperatingenvironment.Thatisanecessaryandpracticalapproach.Inthisasinmuchelse,thosewhowishtoinfluencethefuturemustprepareforit.【答案】精选文档但是即便当下英语使用者的人群还在进一步扩大，有迹象表示：在可预示的将来，英语可能会渐渐失掉其全世界主导地位。所以，对于那些以为英语的国际地位十全十美、甚至感觉他们的年青后辈们不需要学习其余语言的人而言，他的解析可能会给他们的狂妄自傲画上一个句号。众多国家正在将英语引进小学课程，但是，绝不夸张地说，英国学童和学生忧如没有碰到更多的激励去学会流利地使用其余语言。大卫·葛拉尔多所发现的变化给教授他国人士英语的英国机构以及更广阔的教育市场带来了不言而喻的巨大挑战。这给全部致力于实行英语学习和使用的机构供给了一个拟定规划的依据，让我们能够应付将来完整不同样的操作环境里出现的各种可能性。2017年考研英语一小作文评论及范文今年英语一的小作文不出猜想，再一次察看到了介绍信。在英语一的考试当中，介绍信已经察看过两年了。比方我们英语一在2011年就察看过向你的朋友介绍一部电影。详尽题目要求是Writealettertoafriendofyoursto1)recommendoneofyourfavoritemoviesand;2)givereasonsforyourrecommendation.2015年察看的是youaregoingtoholdaclubreadingsession.Writeanemailofabout100wordsrecommendingabooktotheclubmembers.Youshouldstatereasonsforyourrecommendation.现在年的作文题目要求给新来的澳大利亚国籍教授JamesCook介绍你城市的touristattraction。所以，考生不用慌乱只要把2011年或2015年的小作文，主若是推精选文档荐原由部分，稍作更正即可成文。这就启示我们2018届的同学们要高度重视历年真题，由于考过的话题或是书信种类会屡次察看。那么今年的作文详尽该怎样来写呢?今年考题的Direction要求向新来的JamesCook教授介绍旅游景点。依据题目的要求，我们能够判断本文为公务信函，语域为正式语域，即不能够出现缩写、省略问句和和口语表达。称呼：DearProf.JamesCook,注意称呼中，Prof后边的句点不能够丢，称呼最后的逗号号不行丢，也不能够写成冒号。自然若是称呼不写Prof.写成Mr.JamesCook也是能够的。正文第一段：写作内容需涵盖两点：1：欢迎Cook教授来中国;2：写信目的，表示介绍。用到了这样的表达WelcometoChina.Iknowyoulovetraveling,soI’mwritingthislettertorecommendtoyouoneofmyfavoritescenicspot-Harbin,whichisanoldnortherncityofChina.第二段：写作内容为介绍原由。能够从三个角度来考虑：美景、美食和热情的人们。用到了这样的表达：Ithinkyoumustlikeitforthereasonsasfollows.Tobeginwith,thereareanamountofbeautifulscenicspots,suchastheIceandSnowKingdominwinter,theSunisland,theCentralStreetandsoon.Inaddition,youcouldtasteagreatnumberofsnacksontheaveragestreet.Lastbutnotleast,thepeopleofHarbinareoverwhelminglyhospitableandenthusiastic,whichisfamousalloverChina.第三段：再次重申写信目的。Owingtothereasonsdiscussedabove,Iwon’thesitatetorecommendthisscenicspottoyou.Iamsureyouwillenjoyit.最后，表达祝愿Bestwishesforyou!落款：Yourssincerely,特别提示sincerely后边逗号不能够丢;精选文档签字：LiMing特别注意Ming后边必然不能够出现句点。落款和前面左、右