教科版英语题目及答案

教科版英语题目及答案一、听力理解（30分）1.短对话理解（5分）1.Whatdoesthemanwanttodo?A.Buyabook.B.Borrowabook.C.Readabook.D.Returnabook.2.Wherearethetwospeakersprobably?A.Inalibrary.B.Inarestaurant.C.Inashop.D.Inacinema.3.Whenwillthewomangototheparty?A.ThisFriday.B.ThisSaturday.C.NextFriday.D.NextSaturday.4.Whatdoesthewomanthinkofthemovie?A.It'sboring.B.It'sinteresting.C.It'stoolong.D.It'stooshort.5.Howmuchwillthemanpayforthetickets?A.10dollars.B.15dollars.C.20dollars.D.25dollars.2.长对话理解（10分）对话1：W:Hello,Tom.Ihaven'tseenyouforawhile.Howareyoudoing?M:Hi,Mary.I'mfine,thanks.I'vebeenbusypreparingformyfinalexams.W:Oh,really?Whenarethey?M:Nextweek.I'mabitnervousaboutthem.W:Iunderstand.Whatsubjectsareyoutaking?M:Math,Physics,andChemistry.Theyareallchallengingsubjects.W:Thatsoundstough.Haveyoubeenstudyinghard?M:Yes,I'vebeenstudyingeverydayforthepastmonth.I'vealsojoinedastudygrouptohelpmepreparebetter.W:That'sagoodidea.Studygroupscanbeveryhelpful.M:Theyare.Wemeetthreetimesaweekanddiscussdifficultproblemstogether.W:Thatsoundsgreat.Ihopeyoudowellinyourexams.M:Thanks,Mary.Iappreciateyourencouragement.问题：1.Whyhasn'tTomseenMaryforawhile?A.Hehasbeenill.B.Hehasbeenstudying.C.Hehasbeentraveling.D.Hehasbeenworking.2.WhenareTom'sfinalexams?A.Thisweek.B.Nextweek.C.Intwoweeks.D.Inamonth.3.HowdoesTomfeelabouthisexams?A.Excited.B.Confident.C.Nervous.D.Relaxed.4.HowoftendoesTommeetwithhisstudygroup?A.Onceaweek.B.Twiceaweek.C.Threetimesaweek.D.Everyday.5.WhatdoesMarythinkofstudygroups?A.Shethinkstheyareuseless.B.Shethinkstheyaretooexpensive.C.Shethinkstheyareveryhelpful.D.Shehasnevertriedone.对话2：W:Goodmorning,sir.Welcometoourhotel.HowcanIhelpyou?M:Goodmorning.I'dliketocheckin,please.IhaveareservationunderthenameJohnSmith.W:Letmesee...Yes,Ifoundit.Youhaveastandardroomforthreenights.Isthatcorrect?M:Yes,that'sright.W:CouldIpleaseseeyourpassportandcreditcard,please?M:Sure.Heretheyare.W:Thankyou.Yourroomis305onthethirdfloor.Hereisyourkeycard.Thebreakfastisservedfrom7to9inthemorning,intherestaurantonthefirstfloor.M:Thankyou.Isthereaswimmingpoolinthishotel?W:Yes,thereis.It'sontheroof.Youcanuseitfrom6amto10pm.M:Great.WhatabouttheWi-Fi?Isitfreeintherooms?W:Yes,itis.Thepasswordisonthekeycardsleeve.M:Perfect.Thankyouforyourhelp.W:You'rewelcome.Enjoyyourstaywithus.问题：1.Whatistheman'sname?A.JohnSmith.B.TomBrown.C.MikeJohnson.D.DavidWilson.2.Howlongwillthemanstayatthehotel?A.Onenight.B.Twonights.C.Threenights.D.Fournights.3.Whichflooristheman'sroomon?A.Thefirstfloor.B.Thesecondfloor.C.Thethirdfloor.D.Thefourthfloor.4.Whereistheswimmingpool?A.Inthebasement.B.Onthefirstfloor.C.Onthethirdfloor.D.Ontheroof.5.Whenisbreakfastserved?A.From6to8am.B.From7to9am.C.From8to10am.D.From9to11am.3.短文理解（10分）短文1：LondonisthecapitalofEnglandandoneofthelargestcitiesintheworld.Ithasapopulationofabout8millionpeople.Thecityisdividedintoseveralparts,includingtheCity,Westminster,andtheWestEnd.TheCityistheoldestpartofLondon,wherethefirstRomansettlementwasestablished.Today,itisthefinancialcenterofLondon,withmanybanksandbusinesseslocatedthere.Westminsterishometomanyimportantgovernmentbuildings,includingtheHousesofParliamentandBuckinghamPalace.ThePrimeMinisterandtheRoyalFamilybothworkinWestminster.TheWestEndisknownforitsshopping,theaters,andrestaurants.Itisapopularareafortouristsandlocalsalike.OxfordStreetandRegentStreetarefamousshoppingstreetsintheWestEnd.Londonhasarichculturallife,withmanymuseums,galleries,andtheaters.TheBritishMuseum,theNationalGallery,andtheTateModernareallworld-famousattractions.Thecityalsohasexcellentpublictransportation,includingthefamousLondonUnderground,or"theTube".TheTubehas11linesandservesover270stationsacrossthecity.问题：1.WhatisthepopulationofLondon?A.About5million.B.About6million.C.About8million.D.About10million.2.WhichpartofLondonisthefinancialcenter?A.TheCity.B.Westminster.C.TheWestEnd.D.TheEastEnd.3.WhereisBuckinghamPalacelocated?A.IntheCity.B.InWestminster.C.IntheWestEnd.D.IntheEastEnd.4.WhatistheLondonUndergroundalsoknownas?A.TheSubway.B.TheMetro.C.TheTube.D.TheTrain.5.HowmanylinesdoestheLondonUndergroundhave?A.9lines.B.11lines.C.13lines.D.15lines.短文2：TheGreatWallofChinaisoneofthemostfamouslandmarksintheworld.Itstretchesover6,000kilometersfromeasttowestacrossnorthernChina.ThewallwasbuilttoprotectChinafrominvasionsbynortherntribes.ConstructionoftheGreatWallbeganover2,000yearsagoduringtheQinDynasty.Differentdynastiescontinuedtobuildandextendthewall.ThewallthatweseetodaywasmainlybuiltduringtheMingDynasty,betweenthe14thand17thcenturies.TheGreatWallisnotasinglewallbutaseriesofwallsandfortifications.Itwasbuiltusinglocalmaterials,suchasstone,brick,andearth.Thewallincludeswatchtowers,barracks,andothermilitarystructures.Despiteitsname,theGreatWallisnotvisiblefromspacewiththenakedeye,asissometimesclaimed.However,itisstillanimpressivefeatofengineeringandasymbolofChinesecivilization.Today,theGreatWallisapopulartouristattraction.Millionsofpeoplevisitthewalleachyear.ThemostvisitedsectionsarenearBeijing,includingBadalingandMutianyu.问题：1.HowlongistheGreatWallofChina?A.About4,000kilometers.B.About5,000kilometers.C.About6,000kilometers.D.About7,000kilometers.2.WhenwastheGreatWallmainlybuilt?A.DuringtheQinDynasty.B.DuringtheHanDynasty.C.DuringtheTangDynasty.D.DuringtheMingDynasty.3.WhatwastheGreatWallbuilttoprotectChinafrom?A.Naturaldisasters.B.Northerntribes.C.Southerninvaders.D.Coastalattacks.4.WhatmaterialswereusedtobuildtheGreatWall?A.Stone,brick,andearth.B.Wood,stone,andmetal.C.Brick,metal,andwood.D.Earth,metal,andstone.5.WhichsectionsoftheGreatWallaremostvisitedbytourists?A.SectionsnearShanghai.B.SectionsnearGuangzhou.C.SectionsnearBeijing.D.SectionsnearXi'an.4.信息填空（5分）听力材料：Goodmorning,everyone.Today,I'dliketotellyouaboutourschool'sannualsportsday,whichwillbeheldonOctober15th.Thesportsdaywillstartat8:00amintheschoolplayground.Allstudentsarerequiredtoparticipateinatleastoneevent.Therewillbevarioustrackandfieldevents,includingthe100-meterrace,thelongjump,andthehighjump.Inaddition,therewillbeatug-of-warcompetitionbetweendifferentclasses.Lunchwillbeprovidedattheschoolcafeteriaat12:00pm.Theawardsceremonywilltakeplaceat3:00pmintheschoolhall.Parentsarewelcometoattendtheceremony.Pleasemakesuretowearyoursportsclothesandbringawaterbottle.Wehopeeveryonewillhaveafunandexcitingday!填空题：1.Theannualsportsdaywillbeheldon________.2.Thesportsdaywillstartat________intheschoolplayground.3.Allstudentsarerequiredtoparticipateinatleast________event.4.Lunchwillbeprovidedattheschoolcafeteriaat________pm.5.Theawardsceremonywilltakeplaceat________intheschoolhall.二、阅读理解（40分）1.选择题（15分）阅读材料1：TheInternethasrevolutionizedthewaywecommunicate,work,andentertainourselves.Ithasbecomeanintegralpartofmodernlife,withbillionsofpeopleusingitdaily.OneofthemostsignificantimpactsoftheInternetisoncommunication.BeforetheInternet,peoplereliedonletters,telephones,andface-to-faceconversationstostayintouch.Now,withemail,socialmedia,andinstantmessaging,wecancommunicatewithanyoneintheworldinstantlyandatlittlecost.Thishasmadetheworldasmallerplaceandbroughtpeopleclosertogether.TheInternethasalsotransformedthewaywework.ManyjobsnowrequireInternetaccess,andsomecanbedoneentirelyonline.Remoteworkhasbecomeincreasinglypopular,allowingpeopletoworkfromhomeorwhiletraveling.Thishasledtogreaterflexibilityinworkarrangementsandhasopenedupjobopportunitiesforpeoplewhomaynotbeabletocommutetoatraditionaloffice.Inaddition,theInternethaschangedhowweaccessinformation.Insteadofgoingtolibrariesorbuyingencyclopedias,wecanfindinformationonalmostanytopicwithasimplesearchonline.Thishasdemocratizedknowledgeandmadeitmoreaccessibletoeveryone.However,theInternetalsohasitsdownsides.Itcanbeaddictive,andexcessiveusecanleadtohealthproblemssuchaseyestrain,backpain,andsleepdisorders.Therearealsoconcernsaboutprivacyandsecurity,aspersonalinformationcanbeeasilysharedorstolenonline.Furthermore,theInternetcanbeasourceofmisinformation,withfalseinformationspreadingquickly.Despitethesechallenges,theInternetremainsapowerfultoolthathastransformedmanyaspectsofourlives.Astechnologycontinuestoevolve,itwilllikelycontinuetoshapeourworldinnewandexcitingways.问题：1.WhatisoneofthemostsignificantimpactsoftheInternet?A.Ithasmadebooksobsolete.B.Ithasrevolutionizedcommunication.C.Ithaseliminatedtheneedforoffices.D.Ithasmadeentertainmentmoreexpensive.2.HowhastheInternetchangedworkarrangements?A.Ithasmadeworkmoreexpensive.B.Ithaslimitedjobopportunities.C.Ithasincreasedflexibility.D.Ithasreducedproductivity.3.HowhastheInternetchangedaccesstoinformation?A.Ithasmadeinformationmoreexpensive.B.Ithaslimitedaccesstoknowledge.C.Ithascentralizedinformationinlibraries.D.Ithasdemocratizedknowledge.4.WhataresomehealthproblemsassociatedwithexcessiveInternetuse?A.Heartdiseaseanddiabetes.B.Eyestrain,backpain,andsleepdisorders.C.Skinproblemsandallergies.D.Hearinglossandvisionproblems.5.WhatisaconcernabouttheInternetregardinginformation?A.Itcontainstoomuchinformation.B.Itspreadsmisinformationquickly.C.Itlacksusefulinformation.D.Itisdifficulttosearch.阅读材料2：Climatechangeisoneofthemostpressingissuesfacingourplanettoday.Itreferstosignificantchangesinglobaltemperature,precipitation,windpatterns,andothermeasuresofclimatethatoccuroverseveraldecadesorlonger.TheprimarycauseofclimatechangeistheincreaseingreenhousegasesintheEarth'satmosphere.Thesegases,includingcarbondioxide,methane,andnitrousoxide,trapheatfromthesunandpreventitfromescapingbackintospace.Thisisknownasthegreenhouseeffect.WhilethegreenhouseeffectisnaturalandnecessaryforlifeonEarth,humanactivitieshaveintensifiedit,leadingtoglobalwarming.Theburningoffossilfuelssuchascoal,oil,andgasisthelargestsourceofgreenhousegasemissions.Thesefuelsareusedtogenerateelectricity,powervehicles,andheatbuildings.Deforestationalsocontributestoclimatechange,astreesabsorbcarbondioxide,andcuttingthemdownreducestheEarth'scapacitytoabsorbthisgas.Theeffectsofclimatechangearealreadybeingfeltaroundtheworld.Risingtemperatureshaveledtomeltingicecapsandglaciers,causingsealevelstorise.Thisthreatenscoastalcommunitiesandecosystems.Changesinweatherpatternshaveresultedinmoreextremeweatherevents,suchashurricanes,droughts,andfloods.Theseeventscancausewidespreaddamageandlossoflife.Climatechangealsoaffectsbiodiversity.Manyspeciesarestrugglingtoadapttotherapidchangesintheirhabitats,leadingtoadeclineinbiodiversity.Thiscandisruptecosystemsandreducetheavailabilityofresourcesthathumansdependon.Addressingclimatechangerequiresglobalcooperation.Governments,businesses,andindividualsallhavearoletoplayinreducinggreenhousegasemissions.Thiscanbedonethroughvariousmeasures,suchastransitioningtorenewableenergysources,improvingenergyefficiency,andprotectingforests.问题：1.Whatisclimatechange?A.Atemporarychangeinweatherpatterns.B.Asignificantchangeinglobalclimateoverseveraldecades.C.Anaturalphenomenonthatoccurseveryyear.D.Alocalchangeintemperature.2.Whatistheprimarycauseofclimatechange?A.Naturaldisasters.B.Increaseingreenhousegases.C.Deforestationonly.D.Overpopulation.3.Whatisthegreenhouseeffect?A.Theprocessbywhichplantsgrow.B.TheprocessbywhichheatistrappedintheEarth'satmosphere.C.Theprocessbywhichwaterevaporates.D.Theprocessbywhichicemelts.4.Whataresomeeffectsofclimatechangementionedinthepassage?A.Risingsealevelsandmoreextremeweatherevents.B.Decreasedfoodproduction.C.Increasedeconomicgrowth.D.Improvedairquality.5.Whatmeasurescanbetakentoaddressclimatechange?A.Ignoringtheproblem.B.Transitioningtorenewableenergysources.C.Increasingtheuseoffossilfuels.D.Cuttingdownmoretrees.阅读材料3：Artificialintelligence(AI)isarapidlydevelopingfieldofcomputersciencethataimstocreatemachinescapableofperformingtasksthattypicallyrequirehumanintelligence.Thesetasksincludevisualperception,speechrecognition,decision-making,andlanguagetranslation.TheconceptofAIdatesbacktothe1950s,whencomputerscientistsbeganexploringthepossibilityofcreatingmachinesthatcouldthinkandlearnlikehumans.EarlyAIsystemsweresimpleandhadlimitedcapabilities.However,advancesincomputingpowerandalgorithmshaveledtosignificantprogressinrecentyears.MachinelearningisakeycomponentofmodernAI.Itinvolvestrainingalgorithmsonlargedatasetstorecognizepatternsandmakepredictions.Forexample,anAIsystemmightbetrainedonthousandsofimagestolearntorecognizeobjectsinnewimages.Thisapproachhasbeensuccessfullyappliedinvariousfields,includinghealthcare,finance,andtransportation.Oneofthemostwell-knownapplicationsofAIisinautonomousvehicles.Self-drivingcarsuseAItonavigateroads,avoidobstacles,andmakedecisionsinreal-time.AIisalsousedinvirtualassistantslikeSiriandAlexa,whichcanunderstandandrespondtonaturallanguagecommands.Despiteitsmanybenefits,AIalsoraisesimportantethicalandsocialquestions.Thereareconcernsaboutjobdisplacement,asAIsystemsmayreplacehumanworkersincertainindustries.Therearealsoquestionsaboutprivacy,asAIsystemsoftenrequirelargeamountsofdatatofunctioneffectively.Lookingahead,thefutureofAIisbothexcitinganduncertain.Ononehand,AIhasthepotentialtosolvesomeoftheworld'smostpressingproblems,suchasclimatechangeanddisease.Ontheotherhand,itposesrisksthatneedtobecarefullymanaged.AsAIcontinuestoevolve,itwillbeimportantforsocietytostrikeabalancebetweeninnovationandregulation.问题：1.Whatisartificialintelligence?A.Atypeofcomputerhardware.B.Afieldofcomputerscienceaimedatcreatingintelligentmachines.C.Aprogramminglanguage.D.Atypeofrobot.2.WhendidtheconceptofAIfirstemerge?A.Inthe1960s.B.Inthe1970s.C.Inthe1980s.D.Inthe1950s.3.Whatismachinelearning?A.Theprocessofteachinghumanstousecomputers.B.Theprocessoftrainingalgorithmsondatatorecognizepatterns.C.Theprocessofdesigningcomputerhardware.D.Theprocessofwritingcomputerprograms.4.WhatisoneapplicationofAImentionedinthepassage?A.Cookingmeals.B.Autonomousvehicles.C.Teachinginschools.D.Performingsurgery.5.WhataresomeconcernsaboutAImentionedinthepassage?A.Itistooexpensive.B.Itistooslow.C.Jobdisplacementandprivacyissues.D.Itistoodifficulttouse.2.判断题（10分）阅读材料1：TheOlympicGamesaretheworld'smostprestigioussportingevent,bringingtogetherathletesfromaroundtheglobetocompeteinvarioussports.ThemodernOlympicGameswerefirstheldinAthens,Greece,in1896,inspiredbytheancientOlympicGamesofGreece.TheancientOlympicGamesbeganin776BCandwereheldeveryfouryearsinOlympia,Greece.ThesegameswerededicatedtotheGreekgodZeusandfeaturedeventssuchasrunning,wrestling,andchariotracing.Thegamescontinuedfornearly12centuriesbeforebeingabolishedbytheRomanEmperorTheodosiusIin393AD.TherevivaloftheOlympicGamesiscreditedtoPierredeCoubertin,aFrencheducatorwhobelievedthatsportscouldpromoteinternationalunderstandingandpeace.HefoundedtheInternationalOlympicCommittee(IOC)in1894,andthefirstmodernOlympicGameswereheldinAthensin1896.Sincethen,theOlympicGameshavebeenheldeveryfouryears,exceptduringtheWorldWars.Thegameshavegrowninsizeandscope,withmoresports,moreathletes,andmoreparticipatingcountries.TheWinterOlympicGames,featuringwintersports,werefirstheldin1924andhavebeenheldalongsidetheSummerGamessince1994.TheOlympicGamesareknownfortheirsymbols,includingtheOlympicringsandtheOlympicflame.Thefiveinterlockingringsrepresentthefivecontinentsandthemeetingofathletesfromaroundtheworld.TheOlympicflameislitinOlympia,Greece,andcarriedbyrelaytothehostcity,whereitisusedtolightthecauldronattheopeningceremony.问题：判断下列句子是否符合原文内容。1.ThemodernOlympicGameswerefirstheldinAthens,Greece,in1896.2.TheancientOlympicGameswereheldinRome.3.PierredeCoubertinfoundedtheInternationalOlympicCommittee.4.TheWinterOlympicGameswerefirstheldin1924.5.TheOlympicringsrepresentthefiveoceans.阅读材料2：TheAmazonrainforestisthelargesttropicalrainforestintheworld,coveringanareaofapproximately5.5millionsquarekilometers.ItislocatedintheAmazonbasinofSouthAmerica,spanningninecountries:Brazil,Peru,Colombia,Venezuela,Ecuador,Bolivia,Guyana,Suriname,andFrenchGuiana.TheAmazonrainforestishometoanincrediblediversityofplantandanimalspecies.Itisestimatedthattherainforestcontainsabout10%ofallknownspeciesonEarth.Thisincludesover40,000plantspecies,3,000freshwaterfishspecies,andmorethan370typesofreptiles.Therainforestisalsohometomanyindigenouspeopleswhohavelivedthereforthousandsofyears.TheAmazonplaysacrucialroleinregulatingtheEarth'sclimate.Thetreesabsorbcarbondioxide,agreenhousegas,andreleaseoxygenthroughphotosynthesis.Therainforestalsoinfluencesweatherpatterns,generatingrainfallthataffectsnotonlySouthAmericabutotherpartsoftheworldaswell.Despiteitsimportance,theAmazonrainforestisunderthreatfromdeforestation,primarilydrivenbyagriculture,logging,andmining.Largeareasoftherainforesthavebeenclearedforcattleranching,soybeanfarming,andotheragriculturalactivities.Thisdestructionnotonlyleadstothelossofbiodiversitybutalsocontributestoclimatechange.EffortsarebeingmadetoprotecttheAmazonrainforest.Severalcountrieshaveestablishednationalparksandprotectedareaswithintherainforest.Internationalorganizationsandgovernmentsarealsoworkingtogethertopromotesustainabledevelopmentandconservationintheregion.问题：判断下列句子是否符合原文内容。1.TheAmazonrainforestcoversanareaofapproximately5.5millionsquarekilometers.2.TheAmazonrainforestislocatedinAfrica.3.TheAmazonrainforestcontainsabout10%ofallknownspeciesonEarth.4.TheAmazonrainforesthasnoeffectontheEarth'sclimate.5.DeforestationintheAmazonismainlycausedbyagriculture,logging,andmining.3.匹配题（5分）阅读材料：SolarenergyistheradiantlightandheatfromtheSunthatisharnessedusingvarioustechnologies.ItisoneofthemostabundantandrenewablesourcesofenergyonEarth.Photovoltaic(PV)technologyisoneofthemostcommonwaystoconvertsolarenergyintoelectricity.PVcells,madefromsemiconductormaterials,convertsunlightdirectlyintoelectricity.WhensunlighthitsthePVcell,itexciteselectronsinthesemiconductormaterial,creatinganelectriccurrent.Thiscurrentcanthenbeusedtopowerhomes,businesses,andotherelectricaldevices.Solarthermaltechnologyisanotherwaytoharnesssolarenergy.Itusesthesun'sheattowarmwaterorotherfluids.Theseheatedfluidscanthenbeusedforheatingbuildings,generatingelectricity,orindustrialprocesses.Solarthermalsystemscanbeeitheractiveorpassive.Activesystemsusepumpsandcontrolstocirculatetheheatedfluids,whilepassivesystemsrelyonnaturalconvectiontomovethefluids.ConcentratedSolarPower(CSP)isatechnologythatusesmirrorsorlensestoconcentratealargeareaofsunlightontoasmallreceiver.Theconcentratedlightisthenusedtoheatafluid,whichproducessteamthatdrivesaturbineconnectedtoanelectricalgenerator.CSPsystemsareoftenusedinlarge-scalepowerplantsandcanstoreenergyforusewhenthesunisnotshining.Building-integratedphotovoltaics(BIPV)arePVsystemsthatareincorporatedintothedesignofbuildings.Theycanbeusedasroofingmaterials,facades,orskylights.BIPVsystemsservedualpurposes:theyprovidebuildingmaterialswhilegeneratingelectricity.Thismakesthemanattractiveoptionforsustainablebuildingdesign.描述：A.Usesmirrorsorlensestoconcentratesunlightontoasmallreceiver.B.Convertssunlightdirectlyintoelectricityusingsemiconductormaterials.C.Incorporatedintobuildingdesigntoservebothasbuildingmaterialsandgenerateelectricity.D.Usesthesun'sheattowarmwaterorotherfluids.E.Reliesonnaturalconvectiontomoveheatedfluids.匹配：将描述与阅读材料中的技术进行匹配。1.Photovoltaictechnology2.Solarthermaltechnology3.ConcentratedSolarPower(CSP)4.Passivesolarthermalsystem5.Building-integratedphotovoltaics(BIPV)4.简答题（10分）阅读材料1：Recyclingistheprocessofconvertingwastematerialsintonewmaterialsandobjects.Itisanessentialpracticeforenvironmentalsustainabilityandhelpsreducetheconsumptionoffreshrawmaterials,energyusage,airpollution,andwaterpollution.Therearemanybenefitstorecycling.First,itconservesnaturalresources.Byrecyclingmaterialslikepaper,plastic,glass,andmetal,wereducetheneedtoextractandprocessnewrawmaterials.Thishelpspreserveforests,reducemining,andconserveothernaturalresources.Second,recyclingsavesenergy.Manufacturingproductsfromrecycledmaterialstypicallyrequireslessenergythanmanufacturingfromrawmaterials.Forexample,makingaluminumfromrecycledaluminumuses95%lessenergythanmakingitfrombauxiteore.Third,recyclingreducespollution.Manufacturingfromrecycledmaterialsoftenproduceslessairandwaterpollutionthanmanufacturingfromrawmaterials.Finally,recyclingreducestheamountofwastesenttolandfillsandincinerators,whichhelpsconservelandandreducegreenhousegasemissions.Despitethesebenefits,recyclingfacesseveralchallenges.Onechallengeiscontamination.Whennon-recyclableitemsaremixedwithrecyclableones,itcancontaminatetheentirebatch,makingitdifficultorimpossibletorecycle.Anotherchallengeisthecostofrecycling.Insomecases,itmaybemoreexpensivetorecyclecertainmaterialsthantoproducenewones.Additionally,notallmaterialscanberecycledefficiently,andsomerecyclingprocessescancreatetheirownenvironmentalproblems.Toimproverecyclingrates,educationandawarenessarecrucial.Peopleneedtoknowwhatcanberecycledandhowtopreparerecyclablematerialsproperly.Governmentsandbusinessesalsoplayarolebyimplementingeffectiverecyclingprogramsanddevelopingnewrecyclingtechnologies.问题：1.Whatarethreebenefitsofrecyclingmentionedinthepassage?2.Whatarethreechallengestorecyclingmentionedinthepassage?阅读材料2：Thehumanbrainisanincrediblycomplexorganthatservesasthecenterofthenervoussystem.Itcontrolsmostoftheactivitiesofthebody,processing,integrating,andcoordinatingtheinformationitreceivesfromthesensesandmakingdecisionsabouttheactionsofthebody.Thebrainisdividedintoseveralparts,eachwithspecificfunctions.Thecerebrumisthelargestpartofthebrainandisresponsibleforhighercognitivefunctionssuchasthought,memory,andvoluntarymovements.Itisdividedintotwohemispheres,leftandright,whichareconnectedbyabundleofnervefiberscalledthecorpuscallosum.Thelefthemisphereistypicallyassociatedwithlogicandanalyticalthinking,whiletherighthemisphereisassociatedwithcreativityandspatialawareness.Thecerebellum,locatedatthebackofthebrain,coordinatesvoluntarymovementsandmaintainsbalanceandposture.Itreceivesinformationfromthesensorysystems,thespinalcord,andotherpartsofthebrainandusesthisinformationtofine-tunemotormovements.Thebrainstemconnectsthebraintothespinalcordandcontrolsmanyvitalautomaticfunctions,suchasbreathing,heartrate,andbloodpressure.Itisdividedintothreeparts:themidbrain,thepons,andthemedullaoblongata.Thebrainstemalsoplaysaroleinregulatingsleepandarousal.Thelimbicsystem,locatedinthecentralpartofthebrain,isinvolvedinemotions,motivation,andmemory.Itincludesstructuressuchasthehippocampus,whichiscruc