专题02 阅读理解说明文(原卷版)-五年（2017-2021）高考英语真题分项汇编（浙江专用）VIP

五年（2017-2021）高考英语真题分项汇编（浙江专用）阅读理解·说明文1.（2021年6月，浙江高考）Ifyouevergettheimpressionthatyourdogcan"tell"whetheryoulookcontentorannoyed,youmaybeontosomething.Dogsmayindeedbeabletodistinguishbetweenhappyandangryhumanfaces,accordingtoanewstudyResearcherstrainedagroupof11dogstodistinguishbetweenimages（图像）ofthesamepersonmakingeitherahappyoranangryface.Duringthetrainingstage,eachdogwasshownonlytheupperhalforthelowerhalfoftheperson'sface.Theresearchersthentestedthedogs'abilitytodistinguishbetweenhumanfacialexpressionsbyshowingthemtheotherhalfoftheperson'sfaceonimagestotallydifferentfromtheonesusedintraining.Theresearchersfoundthatthedogswereabletopicktheangryorhappyfacebytouchingapictureofitwiththeirnosesmoreoftenthanonewouldexpectbyrandomchance.Thestudyshowedtheanimalshadfiguredouthowtoapplywhattheylearnedabouthumanfacesduringtrainingtonewfacesinthetestingstage."Wecanruleoutthatthedogesimplydistinguishbetweenthepicturesbasedonasimplecue,suchasthesightofteeth,"saidstudyauthorCorsinMuller."Instead,ourresultssuggestthatthesuccessfuldogsrealizedthatasmilingmouthmeansthesamethingassmilingeyes,andthesameruleappliestoanangrymouthhavingthesamemeaningasangryeyes.”"Withourstudy,wethinkwecannowconfidentlyconcludethatatleastsomedogscandistinguishhumanfacialexpressions,"MullertoldLineScience.Atthispoint,itisnotclearwhydogsseemtobeequippedwiththeabilitytorecognizedifferentfacialexpressionsinhumans."Tous,themostlikelyexplanationappearstobethatthebasisliesintheirlivingwithhumans,whichgivesthemalotofexposuretohumanfacialexpressions,"andthisexposurehasprovidedthemwithmanychancestolearntodistinguishbetweenthem,Mullersaid.28.Thenewstudyfocusedonwhetherdogscan_________.A.distinguishshapesB.makesenseofhumanfacesC.feelhappyorangryD.communicatewitheachother29.Whatcanwelearnaboutthestudyfromparagraph2?A.Researcherstestedthedogsinrandomorder.B.Diversemethodswereadoptedduringtraining.C.PicturesusedinthetwostagesweredifferentD.Thedogswerephotographedbeforethelest.30.Whatisthelastparagraphmainlyabout?A.Asuggestionforfuturestudies.B.Apossiblereasonforthestudyfindings.C.AmajorlimitationofthestudyD.Anexplanationoftheresearchmethod.2.（2021年1月，浙江高考）Researcherssaytheyhavetranslatedthemeaningofgesturesthatwildchimpanzees（黑猩猩）usetocommunicate.Theysaywildchimpscommunicate19specificmessagestooneanotherwitha"vocabulary"of66gestures.ThescientistsdiscoveredthisbyfollowingandfilminggroupsofchimpsinUganda，andexaminingmorethan5，000incidentsofthesemeaningfulexchanges.DrCatherineHobaiter，wholedtheresearch，saidthatthiswastheonlyformofintentionalcommunicationtoberecordedintheanimalkingdom.Onlyhumansandchimps，shesaid，hadasystemofcommunicationwheretheydeliberatelysentamessagetoanothergroupmember."That'swhat'ssoamazingaboutchimpgestures，"shesaid."They'retheonlythingthatlookslikehumanlanguageinthatrespect."Althoughpreviousresearchhasshownthatapesandmonkeyscanunderstandcomplexinformationfromanotheranimal'scall，theanimalsdonotappeartousetheirvoicesintentionallytocommunicatemessages.Thiswasasignificantdifferencebetweencallsandgestures，DrHobaitersaid.Chimpswillchecktoseeiftheyhavetheattentionoftheanimalwithwhichtheywishtocommunicate.Inonecase，amotherpresentsherfoottohercryingbaby，signaling："Climbonme."Theyoungsterimmediatelyjumpsontoitsmothersbackandtheytravelofftogether."Thebigmessagefromthisstudyisthatthereisanotherspecies（物种）outthere.thatismeaningfulinitscommunication，sothat'snotuniquetohumans，"saidDrHobaiter.DrSusanneShultz，anevolutionarybiologistfromtheUniversityofManchester，saidthestudywaspraiseworthyinseekingtoenrichourknowledgeoftheevolutionofhumanlanguage.But，sheadded，theresultswere"alittledisappointing"."Thevaguenessofthegesturemeaningssuggestseitherthatthechimpshavelittletocommunicate，orwearestillmissingalotoftheinformationcontainedintheirgesturesandactions，"shesaid."Moreover，themeaningsseemtonotgobeyondwhatotheranimalconveywithnon﹣verbalcommunication.So，itseemsthegulfremains."27．WhatdochimpsandhumanshaveincommonaccordingtoDrHobaiter？A.Memorizingspecificwords.B.Understandingcomplexinformation.C.Usingvoicestocommunicate.D.Communicatingmessagesonpurpose.28．WhatdidDrShultzthinkofthestudy？A.Itwaswelldesignedbutpoorlyconducted.B.Itwasagoodtrybutthefindingswerelimited.C.Itwasinspiringbuttheevidencewasunreliable.D.Itwasafailurebutthemethodsdeservedpraise.29．Whatdoestheunderlinedword"gulf"inthelastparagraphmean？A.Difference.B.Conflict.C.Balance.D.Connection.30．Whichofthefollowingisthebesttitleforthetext？A.ChimpanzeebehaviourstudyachievedabreakthroughB.ChimpanzeesdevelopedspecificcommunicationskillsC.Chimpanzees：thesmartestspeciesintheanimalkingdomD.Chimpanzeelanguage：communicationgesturestranslated3.（2020年7月，浙江高考）Iamanactiveplaygoerandplay-reader,andperhapsmybestreasonforeditingthisbookisahopeofsharingmyenthusiasmforthetheaterwithothers.TodothisIhavesearchedthroughdozensofplaystofindtheonesthatIthinkbestshowthepowerandpurposeoftheshortplay.Eachplayhasathemeorcentralideawhichtheplaywright(剧作家)hopestogetacrossthroughdialogueandaction.Afewcharactersareusedtocreateasingleimpressiongrowingoutofthetheme.Itisnotmyintentiontopointoutthecentralthemeofeachoftheplaysinthiscollection,forthatwould,indeed,ruinthepleasureofreading,discussing,andthinkingabouttheplaysandtheeffectivenessoftheplaywright.However,avarietyoftypesisrepresentedhere.Theseincludecomedy,satire,poignantdrama,historicalandregionaldrama.Toshowtheversatility(多面性)oftheshortplay,Ihaveincludedaguidanceplay,aradioplayandatelevisionplay.Amongthewritersoftheplaysinthiscollection,PaulGreen,SusanGlaspell,MaxwellAnderson,ThorntonWilder,WilliamSaroyan,andTennesseeWilliamshaveallreceivedPulitzerPrizesfortheircontributionstothetheater.Moreinformationabouttheplaywrightswillbefoundattheendofthisbook.Togetthemostoutofreadingtheseplays,trytopicturetheplayonstage,withyou,thereader,intheaudience.Thehouselightsdim(变暗).Thecurtainsareabouttoopen,andinafewminutestheactionanddialoguewilltellyouthestory.1.Whatdoweknowabouttheauthorfromthefirstparagraph?A.Hehaswrittendozensofplays. B.Hehasadeeploveforthetheater.C.Heisaprofessionalstageactor. D.Helikesreadingshortplaystoothers.2.Whatdoestheauthoravoiddoinginhiswork?A.Statingtheplays’centralideas. B.Selectingworksbyfamousplaywrights.C.Includingvarioustypesofplays. D.Offeringinformationontheplaywrights.3.Whatdoestheauthorsuggestreadersdowhilereadingtheplays?A.Controltheirfeelings. B.Applytheiractingskills.C.Usetheirimagination. D.Keeptheiraudienceinmind.4.Whatisthistext?A.Ashortstory. B.Anintroductiontoabook.C.Aplayreview. D.Anadvertisementforatheater.4.（2020年7月，浙江高考）ThetrafficsignalsalongFactoriaBoulevardinBellevue,Washington,generallydon'tflashthesamelengthofgreentwiceinarow,especiallyatrushhour.At9:30am,thefullred/yellow/greensignalcyclemightbe140seconds.By9:33am,aburstofadditionaltrafficmightpushitto145seconds.Lesstrafficat9:37amcouldpushitdownto135.Justlikethetrafficitself,thetimingofthesignalschanges.Thatisbydesign.Bellevue,afast-growingcityjusteastofSeattle,usesasystemthatisgainingpopularityaroundtheUS:intersection(十字路口)signalsthatcanadjustinrealtimetotrafficconditions.Theselights,knownasadaptivesignals,haveledtosignificantdeclinesinboththetroubleandcostoftravelsbetweenworkandhome.“Adaptivesignalscanmakesurethatthetrafficdemandthatisthereisbeingaddressed,”saysAlexStevanovic,aresearcheratFloridaAtlanticUniversity.ForallofBellevue’ssuccess,adaptivesignalsarenotacure-allforjammedroadways.KevinBalke,aresearchengineerattheTexasA&MUniversityTransportationInstitute,saysthatwhilesmartlightscanbeparticularlybeneficialforsomecities,othersaresojammedthatonlyasharpreductioninthenumberofcarsontheroadwillmakeameaningfuldifference.“It’snotgoingtofixeverything,butadaptivesignalshavesomebenefitsforsmallercities,”hesays.InBellevue,theswitchtoadaptivesignalshasbeenalessoninthevalueofwelcomingnewapproaches.Inthepast,therewasoftenanautomaticreactiontoincreasedtraffic:justwidentheroads,saysMarkPoch,theBellevueTransportationDepartment’strafficengineeringmanager.Nowhehopesthatothercitieswillconsidermakingtheirstreetsrunsmarterinsteadofjustmakingthembigger.5.Whatdoestheunderlinedword“that”inparagraph2referto?A.Increasedlengthofgreenlights. B.Shortenedtrafficsignalcycle.C.Flexibletimingoftrafficsignals. D.Smoothtrafficflowontheroad.6.WhatdoesKevinBalkesayaboutadaptivesignals?A.Theyworkbetteronbroadroads.B.Theyshouldbeusedinothercities.C.Theyhavegreatlyreducedtrafficontheroad.D.Theyarelesshelpfulincitiesseriouslyjammed.7.WhatcanwelearnfromBellevue’ssuccess?A.Itisrewardingtotrynewthings. B.Theoldmethodsstillworktoday.C.Ipaystoputtheoryintopractice. D.Thesimplestwayisthebestway.5.（2020年7月，浙江高考）Challengingworkthatrequireslotsofanalyticalthinking,planningandothermanagerialskillsmighthelpyourbrainstaysharpasyouage,astudypublishedWednesdayinthejournalNeurologysuggests.ResearchersfromtheUniversityofLeipziginGermanygatheredmorethan1,000retiredworkerswhowereoverage75andassessedthevolunteers’memoryandthinkingskillsthroughabatteryoftests.Then,foreightyears,thescientistsaskedthesamegrouptocomebacktothelabevery18monthstotakethesamesortsoftests.Thosewhohadheldmentallystimulating(刺激),demandingjobsbeforeretirementtendedtodothebestonthetests.Andtheytendedtolosecognitive(认知)functionatamuchslowerratethanthosewiththeleastmentallychallengingjobs.Theresultsheldtrueevenafterthescientistsaccountedfortheparticipants’overallhealthstatus.“Thisworksjustlikephysicalexercise,”saysFranciscaThen,wholedthestudy.“Afteralongrun,youmayfeellikeyou’reinpain,youmayfeeltired.Butitmakesyoufit.Afteralongdayatwork-sure,youwillfeeltired,butitcanhelpyourbrainstayhealthy.”It'snotjustcorporatejobs,orevenpaidworkthatcanhelpkeepyourbrainfit,Thenpointsout.Awaiter’sjob,forexample,thatrequiresmultitasking,teamworkanddecision-makingcouldbejustasstimulatingasanyhigh-levelofficework.And“runningafamilyhouseholdrequireshigh-levelplanningandcoordinating(协调),”shesays.“Youhavetoorganizetheactivitiesofthechildrenandtakecareofthebillsandgroceries.”Ofcourse,ourbrainscandeclineaswegrowolderforlotsofreasons-includingotherenvironmentalinfluencesorgeneticfactors.Still,continuingtochallengeyourselfmentallyandkeepingyourmindbusycanonlyhelp.8.Whydidthescientistsaskthevolunteerstotakethetests?A.Toassesstheirhealthstatus. B.Toevaluatetheirworkhabits.C.Toanalyzetheirpersonality. D.Tomeasuretheirmentalability.9.HowdoesFranciscaThenexplainherfindingsinparagraph4?A.Byusinganexpert’swords. B.Bymakingacomparison.C.Byreferringtoanotherstudy. D.Byintroducingaconcept.10.Whichofthefollowingisthebesttitleforthetext?A.RetiredWorkersCanPickUpNewSkillsB.OldPeopleShouldTakeChallengingJobsC.YourToughJobMightHelpKeepYouSharpD.CognitiveFunctionMayDeclineAsYouAge6.（2020年1月，浙江高考）Milwaukee,Wisconsin,isroadtestinganewwaytokeepwinterroadsice-free–byspreadingonthemcheesebrine,thesaltyliquidusedtomakesoftcheese,likemozzarella.Wisconsin,alsocalled"America'sDairyland,"isfamousforitscheese.Thestateproduced2.8billionpoundsofcheeselastyear!aresult,therewasalotofleftovercheesebrine.Disposingof(处置)thebrinecanbeexpensive.Sowhatshouldcheesemakersdowiththewaste?Normally,townsuserocksalttode-icestreets.Thesaltlowerswaters'freezingpoint,causingicetomelt(融化).Butusingcheesebrinecouldhelpbothcheeseproducersandcitiessavemoney,whilekeepingroadssafe.Cheesebrinehassaltinit,which,liketherocksalt,helpslowerwater'sfreezingpoint.Inadditiontosavingmoney,cheesebrinecouldalsobeamoreenvironment-friendlyoption.Manypeoplesuspectthatalltherocksaltusedeverywinterisharmingtheenvironment.Rocksaltismadeofsodiumchloride,thesanecon-pound(化合物)inordinarytablesalt.Soundsharmless,right?Butwhileyouprobablyaddonlyasmallamountofsalttoyourfood,roadcrewsspreadabout20milliontonsofsaltonU.S.Roadseveryyear!Thechemicalwashesoffroadsandgoesintotheground.Thereitcanpollutedrinkingwater,harmplants.andeatawaysoil.Byspreadingcheesebrineonstreetsbeforeaddingalayerofrocksalt,Milwaukeemaybeabletocutitsrocksaltuseby30percent.Cheesebrinehasadownsidetoo–ashellsimilartothatofbadmilk."Idon'treallymindit,"EmilNorbytoldModernFarmermagazine.HeworksforoneofWisconsin'scountyhighwaycommissionsandcameupwiththeideaofusingcheesebrine."OurroadssmelllikeWisconsin!"hesaid.11.Whycancheesebrinehelpkeepwinterroadsice-free?A.Itissoft. B.Itcontainssalt. C.Itiswarm. D.Ithasmilkinit.12.Whatisabenefitofusingcheeseurineonroads?A.Improvingairquality. B.Increasingsalesofrocksalt.C.Reducingwaterpollution. D.Savingthecheeseindustry.13.Milwaukee'snewwaytode-icestreetsmaybeanexampleof_______________.A.barkingupthewrongtree B.puttingthecartbeforethehorseC.robbingPetertopayPaul D.killingtwobirdswithonestone7.（2020年1月，浙江高考）Today'sworldisnotaneasyadjustmentforyoungadults.Keyskillsetforsuccessispersistence(毅力),acharacteristicthatresearcherssayisheavilyinfluencedbyfathers.ResearchersfromBrighamYoungUniversitydiscoveredthatfathersareinauniquepositiontohelptheiradolescentchildrenlearnpersistence.BYUprofessorsLauraPadilla-WalkerandRandalDayarrivedatthesefindingsafterfollowing325Americanfamiliesoverseveralyears.Andovertime，thepersistencegainedthroughfathersledtohigherachievementinschool."Therearerelativelyfewstudiesthatstresstheuniqueroleoffathers，"Padilla-Walkersaid."Thisresearchalsohelpstoprovethatcharacteristicssuchaspersistence-whichcanbetaught-arekeytoachild'slifesuccess.”Researchersdeterminedthatdadsneedtopracticean"authoritative"parentingstyle.Authoritativeparentingisnotauthoritarian:rigid，demandingorcontrolling.Rather，anauthoritativeparentingstyleincludessomeofthefollowingcharacteristics:childrenfeelwarmthandlovefromtheirfather；responsibilityandthereasonsbehindrulesarestressedchildrenaregivenanappropriatelevelofautonomy(自主权).Inthestudy，about52percentofthedadsexhibitedabove-averagelevelsofauthoritativeparenting.Akeyfindingisthatovertime，childrenraisedbyanauthoritativefatherweresignificantlymorelikelytodeveloppersistence，whichleadstobetteroutcomesinschool.Thisparticularstudyexamined11to14-year-oldslivingintwo-parenthomes.Yettheresearcherssuggestthatsingleparentsstillmayplayaroleinteachingthebenefitsofpersistence，whichisanavenueoffutureresearch.14.WhatisspecialabouttheBYUprofessors'study?A.Itcenteredonfathers'roleinparenting.B.Itwasbasedonanumberoflargefamilies.C.Itanalyzeddifferentkindsofparentingstyles.D.Itaimedtoimprovekids'achievementinschool.15.Whatwouldanauthoritativefatherdowhenraisinghischildren?A.Ignoretheirdemands. B.Makedecisionsforthem.C.Controltheirbehaviors. D.Explaintherulestothem.16.Whichgroupcanbeafocusoffuturestudiesaccordingtotheresearchers?A.Singleparents.B.Childrenagedfrom11to14.C.Authoritarianfathers.D.Mothersintwo-parenthomes.17.Whichofthefollowingisthebesttitleforthetext?A.ThreeCharacteristicsofAuthoritativeFathers.B.KeySkillsforYoungAdultstoSucceedinFuture.C.ChildrenTendtoLearnDeterminationfromFather.D.FamilyRelationshipInfluencesSchoolPerformance.8.（2019年6月，浙江高考）Californiahaslosthalfitsbigtreessincethe1930s,accordingtoastudytobepublishedTuesdayandclimatechangeseemstobeamajorfactor(因素).Thenumberoftreeslargerthantwofeetacrosshasdeclinedby50percentonmorethan46,000squaremilesofCaliforniaforests,thenewstudyfinds.Noareawassparedorunaffected,fromthefoggynortherncoasttotheSierraNevadaMountainstotheSanGabrielsaboveLosAngeles.IntheSierrahighcountry,thenumberofbigtreeshasfallenbymorethan55percent;inpartsofsouthernCaliforniathedeclinewasnearly75percent.Manyfactorscontributedtothedecline,saidPatrickMcIntyre,anecologistwhowastheleadauthorofthestudy.Woodcutterstargetedbigtrees.Housingdevelopmentpushedintothewoods.AggressivewildfirecontrolhasleftCaliforniaforestscrowdedwithsmalltreesthatcompetewithbigtreesforresources(资源).ButincomparingastudyofCaliforniaforestsdoneinthe1920sand1930swithanotheronebetween2001and2010,McIntyreandhiscolleaguesdocumentedawidespreaddeathofbigtreesthatwasevidenteveninwildlandsprotectedfromwoodcuttingordevelopment.Thelossofbigtreeswasgreatestinareaswheretreeshadsufferedthegreatestwatershortage.Theresearchersfiguredoutwaterstresswithacomputermodelthatcalculatedhowmuchwatertreesweregettingincomparisonwithhowmuchtheyneeded,takingintoaccountsuchthingsasrainfall,airtemperature,dampnessofsoil,andthetimingofsnowmelt(融雪).Sincethe1930s,McIntyresaid,thebiggestfactorsdrivingupwaterstressinthestatehavebeenrisingtemperatures,whichcausetreestolosemorewatertotheair,andearliersnowmelt,whichreducesthewatersupplyavailabletotreesduringthedryseason.18.Whatisthesecondparagraphmainlyabout?A.Theseriousnessofbig-treelossinCalifornia.B.TheincreasingvarietyofCaliforniabigtrees.C.ThedistributionofbigtreesinCaliforniaforests.D.TheinfluenceoffarmingonbigtreesinCalifornia.19.Whichofthefollowingiswell-intentionedbutmaybebadforbigtrees?A.Ecologicalstudiesofforests.B.Banningwoodcutting.C.Limitinghousingdevelopment.D.Firecontrolmeasures.20.WhatisamajorcauseofthewatershortageaccordingtoMcIntyre?A.Inadequatesnowmelt. B.Alongerdryseason.C.Awarmerclimate. D.Dampnessoftheair.21.Whatcanbeasuitabletitleforthetext?A.California’sForests:WhereHaveAlltheBigTreesGone?B.CuttingofBigTreestoBeProhibitedinCaliforniaSoonC.WhyAretheBigTreesImportanttoCaliforniaForests?D.PatrickMcIntyre:GrowMoreBigTreesinCalifornia9.（2018年11月，浙江高考）Themostwelcomesightonacold,wetwinternightinLondonisthefamiliarshapeofaLondontaxicabapproachingwithitsyellow“forhire”signshiningbrightly.Thatshowsitisreadytopickyouup.TravellingbytaxiinLondonisnotjustawayofgoingfromoneplacetoanother.Itisanexperiencetobeenjoyedandremembered.Themainreasonforthisisthedrivers,whoarecalled"cabbies."ManyofthemaretrueCockneys.ThismeanstheywerebornintheheartofLondonandspeaktheirownspecialdialect(方言)ofEnglish.Allofthemknoweverystreetandfamousbuildinginthecity,andallofthemlovetotalk.Asimpletwenty-minuteJourneyacrosstowncanbecomeveryinteresting.Youmayhaveadiscussionaboutthegovernmentanditsleadersorafriendlytalkaboutthedriver’sAuntyNellie!Onethingisforsure,itwillneverbeboring.Cabbiesknowallthelatestnewsaboutfilmstars,theRoyalFamily,governmentleaders,andpopularsingersoractorsandactresses.Theyalsoknowthebestplacestoeat,shopandrelax.Andtheycantakeyoustraighttoanylargehotel,departmentstore,theatreormuseum.Theyknowtheshortestwaypossiblewithoutevenlookingatamap,becauseeveryonewhowantstobecomeataxidrivermustpassaverydifficultexaminationinordertogetalicensetodriveataxi.Theexamiscalled“TheKnowledge.”Itisawrittentest,andinitdriversareaskedtheshortestwayfromoneplacetoanother.Theymusttakeintoaccountthetimeofday—inrushhour,alongerroute(路线)maybequicker—anddescribethebestway.Moreovertheymustneverforgettheone-waystreets!22.FromwhatcanwetellthatsomeoneisaCockney?A.Theirinterest.B.Theirmanners.C.Theirspeech.D.Theirappearance.23.Whatdoestheauthorsuggestbymentioning"AuntyNellie"inparagraph2?A.Passengersarefullofcuriosity.B.Cabbies’topicsarewide-ranging.C.AuntyNellieispopularinLondon.D.Londonersarefriendlytoeachother.24.Whatisthepurposeof"TheKnowledge"?A.Toqualifyonetodriveataxi.B.Toassessone’sdrivingskills.C.Totestdrivers’abilitytowrite.D.Tochecktaxidriversmemory.10.（2018年11月，浙江高考）ThismonthmillionsofAmericankidscanforgetaboutclassroombellsandsetoffforgrandparents’homes,sleep-awaycampsandlifeguardstands.Butsummervacationhasn’talwaysbeenabirthrightofU.S.schoolchildren.BeforetheCivilWar,schoolsoperatedononeoftwocalendars(日历),neitherofwhichincludedasummervacation.Rural(农村的)schoolingwasdividedintosummerandwinterterms,leavingkidsfreetohelpwiththefarmworkinthespringplantingandfallharvestseasons.Urbanstudents,meanwhile,regularlyhadasmanyas48weeksofstudyayear,withonebreakperquarter.Inthe1840s,however,educationalreformerslikeHoraceMannmovedtocombinethetwocalendarsoutofconcernthatruralschoolingwasnotenoughandthatoverusingofyoungmindscouldleadtonervousdisorders.Summerappearedastheobvioustimeforabreak：itofferedarestforteachers,fitinthefarmingcalendarandreduceddoctors’concernthatpackingstudentsintohotclassroomswouldpromotethespreadofdisease.Butpeople’sopinionaboutthemodernU.S.schoolyear,whichaverages180days,isstilldivided.Someexpertssayitspleasantbutlazysummerbreak,whichtookholdintheearly20thcentury,isoneofthereasonsmathskillsandgraduationratesofU.S.highschoolersrankedwellbelowaverageintwointernationaleducationreportspublishedin2007.Othersinsistthatwithchildrenunderincreasingpressuretodevotetheirdowntimetointernships(实习)orstudy,there’sstillroomforaninstitutionthatprotectsthelazydaysofchildhood.25.WhatdidtheruralschoolcalendarbeforetheCivilWarallowchildrentodo?A.Enjoyasummervacation.B.Takeabreakeachquarter.C.Have48weeksofstudyayear.D.Assisttheirparentswithfarmwork.26.Whatdidtheeducationalreformersdointhe1840s?A.Theyintroducedsummervacation.B.The