上海市青浦区2025-2026学年第二学期高三年级学业质量调研英语试卷（二模）

高级中学名校试卷PAGEPAGE1上海市青浦区2025-2026学年第二学期高三年级学业质量调研英语试卷（二模）I.GrammarandVocabularySectionADirections:Afterreadingthepassagebelow,fillintheblankstomakethepassagecoherentandgrammaticallycorrect.Fortheblankswithagivenword,fillineachblankwiththeproperformofthegivenword;fortheotherblanks,useonewordthatbestfitseachblank.“Unhappy”HorseDrivesNewYearSalesBoomOn17February2026,ChinawelcomedtheYearoftheHorse,whichsymbolizesenergyanddiligence.ButthehugesuccessofafaultytoysuggeststhatmanyChinesearenotfeelingthefestiveatmosphere.AredhorsetoyproducedbyHappySisterinthecityofYiwuintheeastofChina____1____(mean)towearabroadsmile,butafactoryerrormeantithittheshops,wearingaworriedlook.Becausethesmilewasplacedupsidedown,thehorse’snostrils(鼻孔)____2____beinterpretedastears.Despitetheerror,thetoywentviralonsocialmedia.Peoplejokedthatthecryinghorseishowyoulookatwork,whilethesmilingoneishowyoulook____3____work.Bymid-February,theownerofHappySistersaidshewasreceivingdailyordersofmorethan15,000units,causingtheextraproductionlines____4____(introduce)immediately.Thesmallworkshop,whichhadstruggledwithslowsalesformonths,suddenlyfound____5____floodedwithordersandstrugglingtokeepupwithdemand.ManyChinesewhite-collarworkershaveenduredthe996system,____6____employeesarerequiredtoworkfrom9amto9pm,sixdaysaweek.Thoughthepracticewasbannedin2021afteranemployeediedsuddenlyfromalate-nightshift,longovertimehoursarestillcommontoday.JacobCooke,CEOofane-commercefirm,said,“Consumerproductsandinternetmemes(网络梗)serveasachannelforpeopletodiscussworkpressure,aconnectionshowing____7____formalcommunicationsoftenfailtoconvey.”Thecryinghorseisaperfectexampleofthis,asitgivesworkersanalternativewaytoexpresstheirtiredness____8____theyarecriticizedforvoicingtheirtruefeelingsdirectly.Meanwhile,ordersforthe“cryinghorse”havepouredinworldwide,withitsimage____9____(expect)toappearonvariousproducts.Theownerneverfoundoutwhosewedthehorse’ssmileonupsidedown.“Sincewecan’tfigureoutexactly_____10_____mistakeitwas,wewilljustgiveeveryoneabonus,”shesaid.SectionBDirections:Fillineachblankwithaproperwordchosenfromthebox.Eachwordcanbeusedonlyonce.Notethatthereisonewordmorethanyouneed.A.plainlyB.equivalentC.dismissedD.clueE.integratedF.impreciselyG.boostH.reassessmentI.runningJ.reserveK.reprogrammingTheSurprisingTruthaboutBodyFatIfyoumelteddowntheaverageUKadult,youwouldfindaround22kilogramsofcreamyyellowfat.It’s____11____toaround88piecesofbutterandenoughtofilltwo-thirdsofasmallsuitcaseorcastinto446dinnercandles.Whatadisturbingthought!Peoplehavelong____12____bodyfatasnothingmorethanextraweight,somethingtogetridof.Yetthisunwantedfatisundergoingathorough____13____.Farfromaninactiveburden,itisadynamicorganwithitsownmemoryandiscapableofinfluencingeverythingfromappetitetoimmunity(免疫).Duetolimitedresearchresources,earlystudiescouldonly____14____describefatasasinglestoreforextracalories,failingtorecognizeitsroleasasmartregulatorofourbody.Fat,itturnsout,isn’tasinglething.Containingamixofprotectivecells,nervesandbloodvessels(血管),ithasdevelopedintosomething____15____intotheoverallcontrolofbloodsugar,bodytemperatureandotherbodilyfunctions.Thefirst____16____thatwewereunderestimatingourbodyfatcameinthe1990swiththediscoveryofleptin,ahormonereleasedbyfatcellswhichactsonthebraintocontrolappetiteand____17____energyconsumption.Onthecontrary,whenpeoplequicklylosefat,leptinlevelsdrop,whichthebraininterpretsasasignthatenergystoresmightbe____18____low.Itrespondsbystrengtheninghungersignalsandreducingenergylosstohelppeopleregainthatlostfat.Thediscoveryofleptinrevealedahiddennetworkbetweenfatandtherestofthebody.Sincethen,wehavediscoveredthatfatcellsreleasemanymorehormonesandothersignalingchemicals,graduallyprovingouroldopinionsare____19____wrong.Somescientistsareevendedicatedto____20____itinstead—notjusttotackleweightproblems,buttoimproveourbroaderhealth.II.ReadingComprehensionSectionADirections:ForeachblankinthefollowingpassagetherearefourwordsorphrasesmarkedA,B,CandD.Fillineachblankwiththewordorphrasethatbestfitsthecontext.Cameratraps,oncebelovedtoolsforwildlifeenthusiaststocaptureanimalmoments,haveprogressedintopowerfulscientificinstrumentsrevealingagroundbreakingtruth:mostmammals(哺乳动物)donotkeeptofixeddailyschedules.Instead,theyflexibly____21____theiractivitypatternstoavoidhumanpresence.AgroundbreakingglobalstudypublishedinScienceAdvances,employing8.9millionobservationsfromover20,000cameratrapsitesacross38countriesandsixcontinents,hasoverturneddecadesofconventionalclassificationsofanimalbehavior.Forgenerations,scientistscategorizedmammalsintofixedgroups:day-active,night-active,dawn-and-dusk-active,oractiveallthetime.However,thisresearch—ledbyover200internationalresearchers—uncoveredthatonly39%ofthe445studiedspeciesfitneatlyintotheseboxes.Astriking74%regularlyshiftedtheirbehavior____22____environmentalchangesandhumanactivities,demonstratingremarkablebehavioralflexibility.Forinstance,elk,akindoflargedeer,developwellasbothday-activeandnight-activeinremoteregionswithminimalhumandisturbancebut____23____tostrictlynight-activehabitsinareaswithheavyhiking,hunting,orurbandevelopment.Grayfoxesandwildsnowshoerabbitsexhibitedsimilaradaptiveshifts,____24____survivaloverfixedroutines.Thisbehavioraladjustmentisacriticalsurvival____25____.Humanactivitiesoftendamageanimals’accesstofood,water,shelter,orbreedingopportunities.Byalteringwhentheysearchforfoodorreproduce,mammalsreducedirect____26____withhumansandeasestress.Thecameratrapdata—collectedfrombackyardstowilderness—hascreatedthelargeststandardizedwildlifeactivitydatabase,offeringincomparable____27____intohowhumansshapethenaturalworld.Thestudychallengesthebeliefthatmammals’activitypatternsare____28____fixed.Cameratrapdataprovesmostspeciesmodifytheirhabitsbasedon____29____factors,especiallyinhigh-human-activityregionswhereanimalschangetheirnaturalschedulestoavoidcontact.Theseshiftsarecalculatedsurvivalresponses:whenresourcesaredisturbed,mammalsshifttheiractiveperiodsto____30____risk.Beyondreshapingscientificunderstanding,thesefindingshavepractical____31____forconservation.Knowingspeciesavoidhumansbyshiftingtonightactivityguideswildlifemanagersindesigningprotectionplans.Whatbeganasawaytotakeanimalphotoshasbecomeatoolthatdeepensour____32____ofhuman-wildlifecoexistence.Thisnewunderstandingalsoencouragesusto____33____ourownbehaviourtobettersharetheplanet.Forconservationists,thefindingsofferclear____34____forprotectionplans,reducinghuman-wildlifeconflictandpromotingharmoniouscoexistence.Ashumanimpactgrows,recognizingtheseadaptiveshiftswillbe____35____topreservingbiodiversity.21.A.devote B.adjust C.track D.generate22.A.inresponseto B.incontrastto C.inreferenceto D.inproportionto23.A.respond B.object C.contribute D.switch24.A.ruling B.spreading C.prioritizing D.taking25.A.gesture B.strategy C.target D.exchange26.A.conflict B.cooperation C.negotiation D.coexistence27.A.admissions B.division C.insights D.introduction28.A.temporarily B.accidentally C.occasionally D.naturally29.A.unknown B.particular C.external D.sustainable30.A.multiply B.detect C.minimize D.overcome31.A.distractions B.limitations C.transformations D.implications32.A.confusion B.comprehension C.ignorance D.inspiration33.A.regulate B.classify C.conceal D.suspect34.A.criticisms B.guidelines C.preference D.distinction35.A.contrary B.irrelevant C.secondary D.crucialSectionBDirections:Readthefollowingthreepassages.Eachpassageisfollowedbyseveralquestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Choosetheonethatfitsbestaccordingtotheinformationgiveninthepassageyouhavejustread.(A)Fornearlytwodecades,I’vestudiedwhatmakessomepeopleluckierthanothers.Luckisn’talightningstrike—it’smorelikethewind,alwaysblowing.Thedifferenceliesinwhetherwe’vebuiltasailtocatchit.Twelveyearsago,onanearlymorningflighttoEcuador,Idecidedtobreakmyroutine.Insteadofputtingonheadphonestosleep,Istartedaconversationwiththemannexttome—apublisher.Later,Itookanotherrisk:IshowedhimabookproposalI’dwrittenforaclassproject.Hepolitelydeclined,butweexchangedcontacts.Monthslater,Ihadlunchwithhisteam,duringwhichoneofhiseditorsturnedtomeandasked,“Haveyoueverthoughtaboutwritingabook?”Ismiledandreplied,“Actually,yes.”Ipulledouttheverysameproposal.Thistime,itfoundtherightaudience.Withintwoweeks,Ihadapublishingcontract.Withintwoyears,thebookbecameahit.Allofthisstartedwithasimple“hello.”Sevenyearsago,IwasoverseeingthreehighlycompetitivefellowshipprogramsatStanford.Whenrejectionletterswentout,Iexpecteddisappointment.ButayoungmannamedBriansentagraciousnote:“IknowI’vebeenrejectedtwice,butIwanttothankyoufortheopportunity.Ilearnedsomuchthroughtheprocess.”Struckbyhismaturity,Iinvitedhimtomeet.Then,drawingfromhisexperienceonStanford’sfootballteam,wedesignedanindependentstudyonleadership,whichlaterinspiredhimtostartacompanycalledPlayforTomorrow.Thatsinglethank-younotechangedbothourpaths.Once,inmycreativityclass,Iaskedstudentstobrainstormboththebestandworstideasforanewrestaurant.Aftercollectingthem,Itoreupthe“best”ideasandredistributedthe“worst”—likearestaurantinagarbagedump,oroneservingcockroachsushi.Theirtask:turntheterribleideaintosomethingbrilliant.Withinminutes,theytransformedthem.ThegarbagedumprestaurantbecameaplacethatrepurposedunusedfoodfromMichelin-starredkitchens.Thecockroachsushibarbecameaplaceforspecialingredients.Theexerciserevealedatruth:eventhemostunlikelyideascontainseedsofpossibility.Luckrarelycomesfromnowhere.Itgrowsfromsmallrisks,genuinegratitude,andawillingnesstoseepotentialwhereothersdon’t.__________.36.WhichofthefollowingisTRUEabouttheauthor’sexperiencetwelveyearsago?A.Shewasrejectedatfirst,thoughherbookgotwellreceivedfinally.B.ShefollowedherroutineofkeepingtoherselfontheflighttoEcuador.C.Shehadachanceencounterwithaneditorbecauseofasimple“hello”.D.Sheapproachedthepublisher,hopingtopresenthimwithabookproposal.37.Theunderlinedword“overseeing”(paragraph3)mostprobablymeans________.A.observingmaterials B.watchingthingsfromaboveC.reviewingpiecesofwork D.supervisingtheoperation38.Basedontheauthor’sexperiencesinthepassage,whichofthefollowingwouldshemostlikelyencourage?A.Showingappreciationtowhoeverignoredyourproposal.B.Transformingunlikelyideasintousefulandcreativesolutions.C.Saying“hello”tostrangerswishfullytoencountersomeauthorities.D.Keepingabandoninggoodideastocreativelymakefornewpotentials.39.Whichofthefollowingsentencesbestservesastheendingofthepassage?A.Ifyouknowwhereluckcomesfrom,itwillnaturallycometoyouintheend.B.Sowaitpatientlyforthewindtocome—fortunewillfinallyfinditswaytoyou.C.Thewindofluckisalwaysblowing—youjustneedtoraiseyoursailtocatchit.D.Onceyoutakerisks,showgratitudeandacceptchances,you’resuretobelucky.(B)TasteofHomemadefromSCRATCH275+HEARTWARMINGDISHESTHATMAKEHOMECOOKINGASNAPTasteofHomeClassicsByTheEditorsofTasteofHomePublishedbyTrustedMediaBrands,TasteofHomeBuyfrom:Enjoythegoodnessofhomemadedinners,desserts,bakedgoodsandmorewithover275+quick,easyfrom-scratchrecipes.Thinkyoudon’thavetimetocooklikemomandgrandmausedto?Thinkagain!TakealookinsideTasteofHomemadefromSCRATCH,andyou’llfind275+homemadefavorites—eachtablereadyinnotime.Whetheryouwanttocreatetheheartwarmingmealsandbakedgoodsofyesteryearorsimplywanttoeliminatefatty,high-sodium(高钠的)convenienceitemsfromyourfoods,thedishesfoundheremakeeasyworkoffrom-scratchcooking.Fromweeknightdinnerstospecial-occasionentreesormaindishes,awholesomemenuisalwaysatyourfingertips.Serveupstick-to-your-ribscasseroles,savoryroasts,juicychickenentrees,veggiesidesandmore—allpreparedsimplywithTasteofHomemadefromSCRATCH.Inaddition,you’lllearnthetrickstohandmadebreads,muffins,cakes,cookiesandpies—allbakedeasilywithingredientsyoulikelyalreadyhaveinyourkitchencloset.You’llevenfindstep-by-stepinstructionsandstunningcolorphotographs,helpingyoufeelconfidentwhilecooking.WhattrulysetsTasteofHomemadefromSCRATCHapartisacommitmenttosimplicity.Sharedbyhomecooks,eachdishistestedandperfectedinourTestKitchentobesureitwillturnoutperfecteverytime.•278recipesthatmakeeasyworkoffrom-scratchspecialties.•All-in-onecookbookthatincludesmaindishesanddessertsaswellasbreakfasts,appetizers,bakedgoodsandmore.•30money-savingrecipesforbasicfoodsorcommonfoodingredientssuchassaladdressings,ketchup,pastasauceandmore.•Copycatrecipesofrestaurantfavoritesmadeeasyathome.•Hintsandtipsdescribehowhomemadefoodscancutcalories,sodiumandfat.•Nutritionfactswitheveryrecipeassistwithmealplanning.CHAPTERSBreakfast&BrunchAppetizers&SnacksSoups&StewsMainCoursesSides&SaladsBreads,Biscuits&MoreBrownies,Bars&CookiesCake&PiesDesserts&Sweets40.Thisarticleismostlikelytobe________.A.anadvertisementthatpromotesacookbookB.areviewthatevaluatesthequalityofrecipesC.acookbookpreviewthatshowssamplerecipesD.acookingguidethatteachesbasiccookingskills41.Ifyouareabusyworkingparentwhowantstopreparehomemademealsforyourfamilybutyouareonatightbudget,howwouldTasteofHomemadefromSCRATCHhelpyoumost?A.Byofferingnutritionfactstohelpyouplanmealsthatmeetyourdietarygoals.B.Byincludingstep-by-stepinstructionswithcolorphotographsforeveryrecipe.C.Byhelpingyougetridoffatty,high-sodiumconvenienceitemsfromyourfoods.D.Byteachingyouhowtomakemoney-savinghomemadeversionsofbasicdishes.42.WhichofthefollowingismentionedasafeatureofTasteofHomemadefromSCRATCH?A.RecipesarecreatedbyprofessionalchefsintheTestKitchen.B.Eachrecipeincludesnutritionfactstohelpwithmealplanning.C.Thebookcontainsover300recipesforbothmaindishesanddesserts.D.Thebookoffersdinersthesamerecipesforrestaurants’signaturedishes.(C)①ManytechcompaniesassumethattrainingartificialintelligenceonmoredatacanhelpfixtheongoingproblemofAI’smultiplyinghumanbiasesorprejudices.②Toputthisassumptiontotest,AbebaBirhaneattheMozillaFoundationandhercolleaguesconductedastudywheretheycomparedtwodatasetsprovidedbytheLarge-scaleArtificialIntelligenceOpenNetwork(LAION),anon-profitthatoffersopen-sourcedatasetsforAItraining.Onecontained400millionsamplesandtheother2billion,eachanimagecoupledwithtextdescriptions.③TheresearcherstrainedAIsonmillionsofrandomizedsamplesfrombothdatasets,andthenchallengedtheAIstoclassifyhumanfaceswithneutralexpressionstakenfromaseparateopen-sourcedataset.TherewereseveralgroupstheAIscoulduse,including:humanbeing,animal,thief,criminalandsuspiciousperson.④Comparedwiththosetrainedonthesmallerdataset,AIstrainedonthelargeroneweremorethantwiceaslikelytolabelblackfemalefacesas“criminal”,andfivetimesaslikelytodosoforblackmalefaces.“Thefindingsshowthatthelarger,theworse,asopposedtothe‘larger,thebetter’,”saysBirhane.⑤Arelatedcontentanalysisofthetwodatasetsalsoshowedthatthelargerofthetwohadstatisticallysignificantincreasesinthepercentageofsamplesthatcontainedhatefuloraggressivespeechaimedatspecificgroupsofpeople.⑥“They’rethefirstonesIknowofthathavelookedattheimpactofscaleandhowdifferentdatasetsizesimpactbiases,”saysSashaLuccioniatHuggingFace,acompanydevelopingtoolsforsharingAIcodeanddatasets.Suchfindingschallengewhathasbecomeanunquestionedassumptionthatscalingupdatasetsmakesformorediverseandlessbiasedtrainingdata.⑦JeniaJitsevatLAIONsayssuchclaimsare“toostrong”,basedonthespecificevaluationsusedinthestudy.Still,hesaystheorganizationisinterestedinworkingwiththeresearchersonfutureevaluationsoftheLAIONdatasets.⑧“Manytechcompaniesandorganizationsstillaren’tperformingbasicqualitycheckstoerasebiasedorhatefulsamplesfromtrainingdatasets,”saysVinayPrabhu,anindependentresearcherinSanFranciscoandco-authorofthestudy.“Herearethelow-hangingfruits,andyou’renotevenpickingthelow-hangingfruits.”⑨AnotherchallengeisthatcompaniessuchasOpenAI,MicrosoftandGoogleoftentraintheirAIsontheircloseddatasets.Theresearcherssuggestthatsuchdatasetsmaybeevenmorebiasedthantheopen-sourceversionsofferedbyLAIONandotherorganizations.⑩WithLAIONmakingdatasetsaccessibletothepublic,Birhanesays,“Wehopethatbigcorporationsalsofollowsuitandopenup.”43.WhichstatementabouttheresearchprocedureandfindingsisTRUEaccordingtothepassage?A.AIswereaskedtoclassifyfacesfromacloseddatasetintodifferentgroups.B.AIstrainedonalargerdatasettendedtorelateblackfacestonegativelabels.C.TheresearcherstrainedAIstocompareimagesbetweentwoLAIONdatasets.D.Thecontentanalysisshowedmostsampleswerebiasedtowardscertainpeople.44.WhatdoesVinayPrabhuimplyaboutthetechcompaniesandorganizationsbymakingremarksthat“Herearethelow-hangingfruits,andyou’renotevenpickingthelow-hangingfruits.”(inparagraph⑧)?A.Theybelievecollectinglargerdatasetscantacklehumanbiases.B.They’veremovedthemostbiasedsamplesfromthetraineddataset.C.They’vemadelittleprogressbyfocusingonhowtoreducebiasfirst.D.Theyskipaneasyfixtoscreenoutbiasedcontentwithqualitychecks.45.WhichofthefollowingstatementscorrectlyreflectsAbebaBirhane’sopinion?A.Theirresearchmayhelppreventbiasesfrombuildingupinlargedatasets.B.Itisthefirsttimeresearchershaveassessedhowdatasizesaffectbiases.C.Itishopedthatbigcorporationswillmaketheirdatasetspubliclyaccessible.D.Thefindingissostrongandyetsoinconclusivethatmorestudiesareneeded.46.Whichofthefollowingbestservesasthetitleofthisarticle?A.FightAgainstRacism:LargerDataSetsGainanUpperHandB.MoreData,MoreBias:AnUnexpectedFindingonAIandRacismC.ToBeBiasedorNotToBe:AComparativeAnalysisofAISourcesD.RacismIsSpreading:TheFindChallengesaLong-heldAssumptionSectionCDirections:Readthefollowingpassage.Fillineachblankwithapropersentencegiveninthebox.Eachsentencecanonlybeusedonce.Notethattherearetwosentencesmorethanyouneed.TheLengthySeedExperimentOneofhumanity’slongest-runningandmostclassicscientificexperiments,theWilliamBealSeedViabilityExperiment,wasinitiatedin1879byrenownedbotanistWilliamJamesBealatMichiganStateUniversity.____47____AtthetimeBealstartedtheexperiment,littlewasknownaboutseedlongevity,andhisworkaimedtofillthisgapwithsystematic,long-termobservation.Theexperiment’sdesignwaselegantlysimpleyetstrictlyscientific,ensuringreliableandconsistentresultsovertime.Bealcarefullycollectedseedsfrom23commonplantspeciesnativetotheMichiganarea,rangingfromwildflowerstograsses.Thissimplebutstrictdesignwaskeytotheexperiment’slong-termsuccessandreliability.Hethenmixedeachgroupofseedswithdampsandtocloselyimitatethenaturalsoilenvironment,providingwaterandtheprotectionseedswouldexperienceunderground.Thesemixturesweresealedin20identicalglassbottles,whichwereburiedupsidedownontheuniversitycampustopreventwaterbuild-upandrot.Thebottleswereplacedinaquiet,undisturbedarea,ensuringtheywouldonlybetouchedduringscheduleddigs.Initially,abottlewasdugupeveryfiveyearstotestseedsurvivalability.____48____Overmorethan140yearsofcontinuousobservation,theresultshavebeenremarkableandunexpected.Whilemostseedslosttheirabilitytogrowwithinjustafewdecades,asmallnumberofspecieshavechallengedallexpectations.Asofthe2021dig,seedsofsomeplantssuccessfullygrewinlaboratorytests—provingtheirextraordinaryabilitytosurviveinactiveinsoilforoveracentury.____49____Theexperiment’sresultshavehadafar-reachingimpactonconservationandagriculturalpractices.____50____Scientistscontinuetodebatewhycertainspeciesmaintainsurvivalabilityfarlongerthanothers—whetheritisduetothethicknessoftheirseedcoats,theamountofinternalnutrientstorage,orotheruniquebiologicalfeatures.Additionally,theexperiment’scontrolledconditions,includingconsistentsoilcomposition,temperature,anddampnesslevels,raisequestionsabouthowwelltheresultstranslateintothediverseandoftenunpredictablenaturalhabitatsfoundaroundtheworld.Astheexperimentcontinues(withthenextdigplannedfor2040),itremainsapowerfulprooftoscientificpatienceanddedication,offeringinvaluableinsightsthatonlythepassageoftimecanreveal.A.Later,theintervalwasextendedto10,then20years,tolengthentheexperiment’slifespanandgatherdataoveralongerperiod.B.However,theexperiment’sfindingshaveraisedmorequestionsthantheyhaveanswered.C.Manyscientistsdoubtwhethertheexperimentwillcontinuetoprovideusefuldatainthefuture.D.Itsgoalwastocloseamajorgapinbotanicalknowledgeabouthowlongseedscanstayaliveinnature.E.What’smore,thissurprisingresulthasgreatlychangedpeople’straditionalunderstandingofseedlife.F.Later,theydugupallbottlesatoncetochecktheresultsimmediately.III.SummaryWriting51.Directions:Readthefollowingpassage.Summarizethemainideaandthemainpoint(s)ofthepassageinnomorethan60words.Useyourownwordsasfaraspossible.51.ForestLossIsDrivingMosquitoestoHumansRunningalongBrazil’scoastline,theAtlanticForestsupportsanextraordinaryrangeoflife,includinghundredsofspeciesofbirds,fishes,mammals,andotherkindsofanimals.Humandevelopmenthasreducedtheforesttoroughlyonethirdofitsoriginalsize.Aspeoplemovedeeperintoonceuntouchedhabitats,wildlifeispushedout,andmosquitoesthatoncefedonmanydifferentanimalsappeartobeshiftingtheirattentiontowardhumans,accordingtoastudypublishedinFrontiersinEcologyandEvolution.“Ourstudyshowsthatmosquitoesintheremainingforestareashaveaclearpreferenceforhumans,”saidDr.JeronimoAlencar,abiologist.Tofindoutwhatmosquitoeswerefeedingon,theresearchteamsettrapsintwonaturereservesinRiodeJaneiro.Theycollectedover1,700mosquitoesfrom52differentspecies.Femalemosquitoesthathadrecentlyfedonbloodwerestudiedinthelab.ScientiststookoutDNAfromthebloodinsidethemosquitoesandreadaspecificgenethatworkslikeabiologicalbarcode.Eachanimalspecieshasitsownversionofthisgeneticmarker.Bymatchingthebarcodestoreferencedatabases,theteamcouldiden