2024-2025学年内蒙古喀喇沁旗锦山蒙古族中学高三第二次模拟考试英语试题（A）试题含解析

2024-2025学年内蒙古喀喇沁旗锦山蒙古族中学高三第二次模拟考试英语试题（A）试题考生请注意：1．答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内，不得在试卷上作任何标记。2．第一部分选择题每小题选出答案后，需将答案写在试卷指定的括号内，第二部分非选择题答案写在试卷题目指定的位置上。3．考生必须保证答题卡的整洁。考试结束后，请将本试卷和答题卡一并交回。第一部分（共20小题，每小题1.5分，满分30分）1．Weallknowthatgoodresults________foryouwhenyoustartdoingthingsyoulove.A．arewaitingB．havewaitedC．havebeenwaitingD．willbewaiting2．Theeconomyinbigcitieshascontinuedtorisethankstothelocalgovernmentstoincrease______.A．thatB．themC．itD．those3．－Thezookeeperwasreallyannoyedwithme.－Howcouldhehavebeenifyou____stonesattheanimals?A．didn’tthrow B．don’tthrowC．hadn’tthrown D．haven’tthrown4．Wesellalotofproductsoffshoreandtheopportunitytoopenupmarketsinregions________wedon'tcurrentlysellalottoisagreatone.A．where B．thatC．what D．when5．—Whyareyousoupset?—Ihadmycomputerrepairedyesterday,butit________workagain.A．doesn’t B．didn’tC．won’t D．wouldn’t6．Theseremarkablefindingssuggesttheelephantshave________amemorycapacitytomakedistinctionsbetweenhumanvoices.A．builtup B．packedup C．broughtup D．tookup7．Mr.Zhanggavealltextbookstoallthepupils,except____________whohadalreadytakenthem.A．theseB．onesC．thoseD．theothers8．Thegovernmentspokesmanhasto________hiswordsbeforerespondingtoreporters.A．pass B．weigh C．cover D．express9．FortheChinesedream______atanearlierdate,wemustacceleratethepaceofreformandopeningup.A．beingrealized B．torealizeC．realizing D．toberealized10．—WhatdoyouthinkofPutin?—Heisanoutstandingleaderwho_______hisreputation.A．looksoutforB．comesupwithC．livesuptoD．looksforwardto11．Tomistheonlyoneofthestudentswhoascholarshipsincelastyear.A．haswon B．havewon C．iswinning D．wins12．Ourcountryhaslaunchedacampaigntobansmokinginpublicplaces,whichwithsomeheavysmokers.A．concernsB．wasconcernedC．concernedD．isconcerned13．Thenewsecretaryisandthereforethemanagerissatisfiedwithherwork.A．effective B．efficient C．specific D．sufficient14．---.Wedidn’tfindtheBlacksduringthelecture.---Noonehadtoldthemabout_____alecture.A．theretobe B．therebeing C．therebe D．therewas15．August8th，2008isaspecialday，________________，Ithink，thatwillberememberedbytheChineseforever.A．one B．whatC．which D．theone16．Interestisas________tolearningastheabilitytounderstand，evenmoreso.A．vital B．availableC．specific D．similar17．It’s_______forpeopletoblametrafficjams,thecostofgasandthegreatspeedofmodernlife.A．reasonable B．availableC．accurate D．cautious18．______youaresupposedtodo______youdon'tlikeathingis______it.Don'tcomplain.A．That;what;change B．When;that;tochangeC．What;when;change D．What;that;changing19．Itisbeyondawkwardwheneveryonearoundyou______________laughingatajokethatyoudonotfindfunny,especiallyifit’sajoketoldinaforeignlanguage.A．runinto B．burstsoutC．yellsout D．fallsinto20．Nowadays,theInternetisapopular________forthepublictoaccessinformationandvoicetheiropinions.A．track B．trendC．channel D．lane第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。21．（6分）Tinymicrobes(微生物)areattheheartofanewagriculturaltechniquetomanageharmfulgreenhousegas.Scientistshavediscoveredhowmicrobescanbeusedtoturncarbondioxideintosoil-enrichinglimestone(石灰石),withthehelpofatypeoftreethatgrowsintropicalareas,suchasWestAfrica.ResearchershavefoundthatwhentheIrokotreeisgrownindry,acidicsoilandtreatedwithacombinationofnaturalfungi(霉菌)andotherbacteria,notonlydoesthetreegrowwell,italsoproducestheminerallimestoneinthesoilarounditsroot.TheIrokotreemakesamineralbycombiningCafromtheearthwithCO2fromtheatmosphere.Thebacteriathencreatetheconditionsunderwhichthismineralturnsintolimestone.Thediscoveryoffersanewwaytolockcarbonintothesoil,keepingitoutoftheatmosphere.Inadditiontostoringcarboninthetrees’leavesandintheformoflimestone,themineralinthesoilmakesitmoresuitableforagriculture.Thediscoverycouldleadtoreforestation(重新造林)projectsintropicalcountries,andhelpreducecarbondioxideintheatmosphereinthedevelopingworld.IthasalreadybeenusedinWestAfricaandisbeingtestedinBolivia,HaitiandIndia.Thefindingsweremadeinathree-yearprojectinvolvingresearchersfromtheUniversitiesofEdinburgh,Granada,LausanneandDelftUniversityofTechnology.TheprojectexaminedseveralmicrobiologicalmethodsoflockingCO2aslimestone,andtheIroko-bacteriawayshowedbestresults.WorkwasfundedbytheEuropeanCommissionundertheFuture&EmergingTechnologies(FET)scheme.DrBryneNgwenyaoftheUniversityofEdinburgh’sSchoolofGeoSciences,wholedtheresearch,said:“Bytakingadvantageofthisnaturallimestone-producingprocess,wehavealow-tech,safe,readilyemployedandeasilyoperatingwaytolockcarbonoutoftheatmosphere,whileimprovingfarmingconditionsintropicalcountries.”1、Thepassageismainlyintroducing________.A．someusefulnaturalfungiandbacteriaB．anewwaytodealwithgreenhousegasC．anewly-foundtreeinWestAfricaD．thesoil-enrichinglimestonecreatedbyscientists2、WhichofthefollowingisTrueabouttinymicrobes?A．Mosttinymicrobeslikelivingindry,acidicsoil.B．CO2canbebrokendownbynaturalfungiandbacteria.C．Themoregreenhousegasis,themoreactivetinymicrobesbecome.D．TinymicrobesgetalongwellwiththeIrokotreeinspecialsoil.3、Whatdoestheunderlinedword“it”inparagraph3probablyreferto?A．Carbondioxide.B．Carbon.C．Soil.D．Limestone.4、Accordingtothepassage,whatcanweinfer?A．Theactionofthetinymicrobescanincreasetheoxygenintheearth.B．ResearchershavedonetheexperimentontreesinAfricaforthreeyears.C．Researcherstendtousenaturalpowertosolvetheirproblem.D．WestAfricaisoneofthemostpollutedareasallovertheworld.5、Accordingtothepassage,theIroko-bacteriamethod________.A．canbeusedtoimprovethefarminglandB．cansavealotofseriouslydestroyedwoodsC．hasbeenpopularizedinBolivia,HaitiandIndiaD．shouldbespreadallaroundtheworldinthefuture22．（8分）Imagineyou’restandinginlinetobuyasnackatastore.Youstepuptothecounterandthecashierscansyourfood.Next,youhavetopay.ButinsteadofscanningaQRCode(二维码)withyoursmartphone,youjustholdoutyourhandsothecashiercanscanyourfingerprint.Or,acamerascansyourface,youreyesorevenyourear.Now,thistypeoftechnologymightnotbefaraway.Astechnologycompaniesmoveawayfromthetraditionalpassword,biometric(生物特征识别的)security,whichincludesfingerprint,faceandvoiceID,isbecomingincreasinglypopular.In2013,AppleintroducedtheiPhone1s,oneofthefirstsmartphoneswithafingerprintscanner.Sincethen,usingone'sfingerprinttounlockaphoneandmakemobilepaymentshasbecomeacommonplace,bringingconveniencetoourlives.Andsince2012,Samsunghasfeaturedeye-scanningtechnologyinitstopsmartphones,whileApple'snewiphoneXcanevenscanauser'sface.Butdespiteitspopularity,expertswarnthatbiometricsmightnotbeassecureasweimagine."Biometricsisideallygoodinpractice,notsomuch,"saidJohnMichener,abiometricsexpert.WhenintroducingthenewiPhone'sfaceIDfeature,PhilSchiller,Apple'sseniorvice-president,said."ThechancethatarandompersoninthepopulationcouldlookatyouriPhonesXandunlockitwiththeirfaceisaboutoneinamillion."Butit'salreadybeendone.InavideopostedonacommunitywebsiteReddit,twobrothersshowedhowtheywereeachabletounlockthesameiPhoneXusingtheirownface.Andtheyaren'teventwins."Wemayexpecttoomuchfrombiometrics,"AnilJain,acomputerscienceprofessoratMichiganStateUniversity,toldCBSNews."Nosecuritysystemsareperfect."Earlierlastyear,Jainfoundawaytotrickbiometricsecurity.Usingaprintedcopyofathumbprint,shewasabletounlockadeadperson'ssmartphoneforthepolice,accordingtoatechwebsiteSplinter."It'sgoodtoseebiometricsbeingusedmore,"JaintoldCBSNews,"becauseitaddsanotherfactorforsecurity.Butusingmultiplesecuritymeasuresisthebestdefense."1、Whichisthelatestidentificationtechnologyinasmartphoneaccordingtothepassage?A．Facescanning.B．Eyescanning.C．QRCodescanning.D．Fingerprintscanning.2、WhatisamajorproblemoftheiPhoneX'sfaceIDsystem?A．Ittakestoolongtounlockthephone.B．Itoftenfailstorecognizeitsowner'sface.C．Facedatacanbeusedforotherpurposes.D．Differentfacescanbeusedtounlockthesamephone.3、WhatisAnilJain'sopinionaboutbiometricsecurity?A．Itisassecureastraditionalmeasures.B．Itisperfectwithoutmuchimprovement.C．Ithascausedmuchtroubleforthepolice.D．Itshouldbeusedwithothersecuritymeasures.4、Whatdoestheauthorintendtotellusinthispassage?A．Thepopularityofbiometrics.B．Securityproblemsofbiometrics.C．Variousproblemswithbiometrics.D．Greatchangescausedbybiometrics.23．（8分）In2013，areportfromTheNeroEnglandJournalofMedicineshowedthatincreasedbodyweightisrelatedtothedeathrateforallcancers.Thisisbasedonastudyinvolvingabout900,000people,spanningmanyyears.Thestudy,startedin1992bytheAmericanCancerSociety,includedmenandwomenfromall50states.Theyoungestparticipantswere30yearsold,andtheaverageagewas57.ByDecember2008,24%oftheparticipantshaddied,justaquarterofthemfromcancers.Inanalyzingtheresults,researchersattemptedtotakeaccountofsuchpotentialfactorsassmokingdrinkingalcohol,takingaspirinandawidevarietyofotherfactorsthatmightotherwiseaffecttheresults..Theresultsareclear:themoreyouweigh,thegreateryourriskofdyingofcancerwillbe(upto52%higherformenand62%forwomen).Inmenaswellaswomen,theonlycancersthatdidnothaveastrongconnectionwithweightwerelungcancerand-braincancer.Forwomen,thestrongestcorrelationwithweightwasuterinecancer(子宫癌),whichis6.5timeshigherforwomenwithaBMI(BodyMassIndex)of40ormore.Formen,itwaslivercancer,whichis4.5timeshigherinmostobese(肥胖的)men.Smokerstendtobemoresuccessfulinkeepingweightoffthannon-smokers,slightlyreducingtherisk.Butmanyofthemdon’thavegoodlungs.Thus,inanotherway,theyalsofacerisks.Asforwhyextraweightleadstoexcesscancerdeathrate,there’snoclearagreement.ButthedecreaseinvitaminDinobesepeopleseemsalikelyfactor.VitaminDisknowntohavearoleinpreventingcancer.Also,thereisasimplefactthatobesitymakesthemanagementofcancermoredifficult.Althoughfornowthereisnosimpleanswertowhyobesityincreasesaperson’scancerrisk,allweknowforcertainisthattheriskisreal.1、Thepassageismainlyconcernedwiththerelationshipbetween________.A．dietandcancerB．bodyweightandcancerC．sexandcancerD．smokingandcancer2、Theauthordevelopsthepassagemainlythrough________.A．timeorderB．spaceorderC．analysisandcomparisonD．figuresandexamples3、Theunderlinedword“spanning”inthefirstparagraphprobablymeans“________”.A．lastingB．includingC．happeningD．changing4、Accordingtothepassage,whatcanwelearnaboutthestudy?A．Thereisaclearexplanationconcerningwhyobesityleadstomorecancers.B．Generallyspeaking,womenfacefewerrisksofdyingofcancerthanmenC．WomenwithaBMIof40dyingofuterinecanceraremorethanotherwomen.D．Smokersarestilllikelytofacerisksofdyingofcancerthoughkeepingweightoff.24．（8分）Thereisa1930s-oldrestaurantinmyhometownthathasdonelittletoupdateitselfoverthepast80years.Thisispartofitscharm,asisthewoodenphonebooththatsitsneglectedintheageofthecellphone.Ah,thephonebooth.Weneeditnowmorethanever.Formeitsymbolizesthatphonecallswereonceprivateaffairs,eveniftheinformationbeingsharedwasnotsensitiveinanyway.Itwassimplyassumedthataphoneconversationwasmeantfortwopeople,andtwopeopleonly.Inpublicplacesthismeantturningtothephonebooth—aprivatechamberwhereonecouldconverseinpeacewithoutbeingoverheard.Evenathome,phonecallsusedtoberegardedasprivate.Growingupinthe1960s,wehadonephoneinthehouse—fixedtothekitchenwall.Asakid,Ididn'tgetormakemanycalls.Ido,however,rememberansweringthephone,askingfortheidentityofthecaller,andthenhandingthephonetomymom.She'dtakeit,say“Hello,Mrs.Flaubert，”andthen,“onemomentplease，”assheplacedherhandoverthereceiver,turnedtome,anddirected,“Thisisforme.Whydon'tyougooutsideandplay？”Flashforwardtowhatcellphoneshavedonetothepast.Withinthespaceofveryfewyears,privateconversationshavebecomepublicdeclaration,andbeingoverheardseemstobethepoint.Alargepartoftheproblem,ofcourse,isthatwenowcarryourphoneswithus,andthereflex(反射)toanswerthedeviceassoonasitringsisaresponsePavlovwouldhaveappreciated.Buttheinformationisrevealed!NotlongagoIwassittinginBoston'sSouthStation,waitingformytrain.Afterpurchasingasandwich,Isatdownatatablenearamanwhowasonhiscellphone.Letmeparaphrasewhatthemanhadtosay：“Yes,that'sright.Theredandyellowroses.ThatwillbeaVisa.”Thenheproceededtorecitehiscardnumberandexpirationdatebeforesigningoff.Istaredunbelievablyatthefellow.Heglancedatmeandasked，“What？”Myresponsewasimmediate:Irecitedhiscardnumberbacktohim,alongwiththeexpirationdate.Thereisnomoreprivacy,nolongerasenseofpersonalbordersorlimitsandthecellphonehasbecomealoudspeaker.Toreturntophonebooths:Whydidtheydisappear?Andshouldyouthinkaphoneboothhasnovaluetoday,IsawoneoneBaygoingfor$4，750.1、Whydoprivateconversationsturnintopublicdeclarationaccordingtothepassage?A．Phoneboothshavediedoutinmodernlife.B．Peoplelackasenseofpersonalbordersorlimits.C．Thecontentofphonecallsisnotthatsensitive.D．Itisconvenientforpeopletoreachforcellphones.2、BydescribingwhathappenedinBoston'sSouthStation,theauthorindicatesthat________．A．it'sridiculoustoanswercellphonesinpublicplacesB．it'simpolitetooverhearothersansweringcellphonesC．it'snecessarytokeepasafedistancefromotherswhenansweringphonesD．it'sinappropriatetotouchonpersonalinformationincellphoneconversations3、Whatcanweconcludefromthepassage?A．Pavlovisinfavorofansweringcellphonesinstantly.B．Somethingseeminglyold-fashionedholdsitscharmtoday.C．PhoneboothsareverypopularwithconsumersontheInternet.D．Peopleusedtolackasenseoftrustandsecurityinthe1960s.25．（10分）ToimproveChineseonourcampus,severalprogramswillbeorganized.Hereissomeinformation.LanguagePartnerProgramTheaimofthisprogramistopromoteChineselanguagestudyforAmericanstudents,throughthisprogram,nativespeakersofChinesecanhelpourChineselanguagestudents,whocanhelpstudentsorscholarsfromChinawiththeirEnglishinexchange.Ifinterested,pleasecontactYuanLu,yuan-lu-2@TheChineseCornerTheChineseCornerisanon-threatening,pleasantplaceforfacultyandstudentswhowanttopracticetheiroralChinese.Learnersofalllevelsarewelcometojoin,sincewehavetopicssuitableforeachlevel.AttheChineseCorner,youcanmakefriendswithChinesestudentsandexchangeopinionsonculturalissues.Youwillsurelylearnsomethingneweverytimeyoucome!WewelcomewhoeverwantstospeakChinese.Contactperson:BoSun,bo-sun@TheChineseHostFamilyProgramThepurposeofthisprogramistohelpourAmericanstudentstogainfirst-handexperienceofChineseculture,lifestyle,customs,andconventionsthroughestablishingfriendshiprelationswithChinesefamilies.StudentswhojointhisprogramwillbeinvitedbytheirChinesehostfamilytojointheirfamilyactivitiesonaregularbasis.Pleasesignupforthisprogram.Cross-UniversityChineseLanguagePerformanceCompetitionThiscompetitiongivesstudentsinandoutsideofIowaagreatopportunitytoshowtheiroralChineseproficiencyaswellastheirtalentinperforming.Asmanyasfouruniversitieshaveparticipatedinthecompetition,includingTheUniversityofIowa.Eachuniversitypresentsasetofprograms,andthenparticipantsareawardedprizesatanawardsceremony.Mid-AutumnFestivalCelebrationTheChineseProgramhostsanannualcelebrationfortheMid-AutumnFestival.Weinviteallstudentsandfacultymemberstojoinourparty.YouwillmeetChang’e,thegoddessoftheMoon,learnabeautifulChineselegendarystoryandtastemooncakesaswellasotherChinesefood.IfyouknowsomeChinesecharacters,youmaywinaprize!Comeandjoinus!Formore,pleaseseetheFlyer.1、IfyouhavedifficultywithEnglish,whatwillyouprobablydo?A．AttendtheMid-autumnFestivalcelebration.B．GototheChineseCorner.C．ParticipateinLanguagePartnerProgram.D．ContactaChinesehostfamily.2、IfyouwouldliketodisplayyourspokenChinese,whichwillyousignupfor?A．ChineseLanguagePerformanceCompetition.B．TheChineseCorner.C．TheChineseHostFamilyProgram.D．LanguagePartnerProgram.3、Thepassageisintendedfor________.A．AmericanseniorhighstudentsB．AmericanuniversitystudentsC．ChineseseniorhighstudentsD．ChineseuniversityStudents第三部分语言知识运用（共两节）第一节（每小题1.5分，满分30分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项．26．（30分）Inmylifeeverythingwasgoingwelluntilrecently.Ihavealwaysbeenaverypositivethinkingand1personandIalwaysusedtobelievethatIcouldovercomeanychallenge.Unfortunatelyit2,andthecheatofmydearestfriendhitmeveryhard.Iwentthroughaverydifficultphase.Iwantedtoseek3towhyhedidthistome.Istartedlosingmy4inhumanityanddecidedtowithdrawmyselffromsociety.But5insideIhadadeepfeelingofservingneedypeoplebecauseinchildhoodIwasverymuch6byMotherTeresaandtheworkshewasdoing,Soafter3—4weeksof7,Idecidedtodocommunityserviceeveryweekendto8himfrommymemorycompletely.Iwas9bytheprojecttoteachsomepoorchildreninremotevillageinMumbai.Onthefirstday10Ireachedthelocationwithdifficulty.Ifoundthatitwasreallyfarfromcivilization.Icouldseepeoplelivinginverydifficultconditions11electricitybutstillenjoytheirlifeandhappywiththwirsurroundings.My12withthekidsandparentshastaughtmeimportantlessonsaboutsufferingandlearningto13dailygiftsoflife.Afterthat14,therewasnolookingforme.IthinkIcelebratemysetbackeverydayandthankmyfriendwho15mebecauseofwhomIchosethispathof16theneedy.Ihavemetsomewonderfulandbeautifulsoulsinthis17.Theyhavemademebelievethattherearemanymoresuch18aroundus.Slowlybut19onestepatatimewearemaking20andtouchingthelivesofmany.NowIgainthefaithinhumanityagain.1、A．carefulB．popularC．honestD．optimistic2、A．workedB．affectedC．failedD．left.3、A．methodsB．answersC．suggestionsD．support4、A．faithB．confidenceC．courageD．sense5、A．somewhereB．somewhatC．somehowD．sometime6、A．praisedB．inspiredC．admiredD．require7、A．practiceB．progressC．sufferingD．relief8、A．hateB．upsetC．ignoreD．wipe9、A．attractedB．assistedC．announcedD．assigned10、A．whenB．thatC．whereD．what11、A．fromB．withoutC．forD．over12、A．choicesB．requestsC．interactionsD．decisions13、A．valueB．observeC．welcomeD．expect14、A．planB．projectC．sightseeingD．express15、A．recognizedB．realizeC．cheatedD．comforted16、A．sponsoringB．cheeringC．satisfyingD．serving17、A．experienceB．adventureC．performanceD．exploration18、A．habitsB．hobbiesC．thoughtsD．souls19、A．cautiouslyB．steadilyC．strangelyD．tightly20、A．facesB．troublesC．changesD．adjustments第二节（每小题1.5分，满分15分）阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。27．（15分）Chinamaybehometoboththelongestandhighestbridgesintheworld,1．neitherisaspioneeringastheNanjingYangtzeRiverBridge2．(build)duringthe1970’s,thedouble-deckedbridge3．(consider)groundbreakingwhenitwascompletedin4．Butmoreimportantlytosome,itwasalsothefirstmodernbridgetobedesignedandbuiltbyChinawithouthelpfromforeign5．(architect)“Thebridgewassoimportantthatit’sundoubtedlyasymbolofthecity,”saidLuAndong,aprofessoratNanjingUniversity’sSchoolofArchitectureandUrbanPlanning“Itisbeingrepaired6．transportationandsafetypurposes,butIwouldexpectthechance7．(transform)thebridge’stowerandtheattachedparkintoplacesofmemory”Withalengthofover5,000feet,thebridge8．(carry)bothcarsandtrains9．(It)upperdeckisafour-lanehighwaywithsidewalks,whiletherailwaytracksarenowpartoftheBeijing-Shanghaitrainroute“Everybodylovesthebridge,”saidWangShiqing,alongtimeNanjingresident10．hascollectedover1,00piecesofNanjingYangtzeRiverBridgesouvenirs”It’sasourceofpride,11．(especial)forlocalNanjingpeople,”hesays第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下短文。短文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。删除：把多余的词用斜线（＼）划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。注意：1.每处错误及其修改均仅限一词；2.只允许修改10处，多者（从第11处起）不计分。JohnSnow—adoctor,whoattendedQueenVictoriaasherpersonalphysician.Buthewaswillingtohelpordinarypeopleexposedincholera.Manypeoplediedeverytimetherewasaoutbreak.Hewantedtofacethechallengeandsolvetheproblem.Notheoriescaughtherattention.Thefirstsuggestedthatcholeramultipliedintheair.Thesecondsuggestedthatpeopleabsorbedthisdiseaseintotheirbodiesandthediseaseattackedthebody.JohnSnowbelievedthesecondwasrightbutheneededevidences.WhenanotheroutbreakhitLondonin1854,hewasreadytobeginhisenquiryandtriedtogetmoreinformation.Hefoundthatmostofthedeathswasnearawaterpumpandthespreadofthediseasewaswithwater.Withtheinformation,hewasabletoconcludethatpollutingwatercarriedthevirus.Afterthat,hesuggestedthesourceofallthe