2026 高二英语月考综合试卷及答案

2026高二英语月考综合试卷及答案第1页共1页2026高二英语月考综合试卷及答案一、单项选择题（共10小题，每题2分）1.Whichofthefollowingtensesisprimarilyusedtodescribeanactionthatbeganinthepastandcontinuesuptothepresent?A.SimplePresentB.SimplePastC.PresentContinuousD.PastContinuous参考答案：C2.Inthesentence"Thecatchasedthemouse,"whichwordisthedirectobject?A.TheB.catC.chasedD.mouse参考答案：D3.Whatisthecorrectwaytoformthepluralof"child"?A.childesB.childC.childrenD.child's参考答案：C4.Whichofthefollowingisacorrectuseofthepassivevoice?A.Thebookwasreadbymeyesterday.B.Ireadthebookyesterday.C.Thebookreadswell.D.Thebookisreading.参考答案：A5.Whatisthepastparticipleoftheverb"togo"?A.wentB.goC.goingD.gone参考答案：D6.Whichconjunctionisusedtoshowcontrast?A.andB.butC.orD.so参考答案：B7.Inthesentence"Sheissingingbeautifully,"whatistheadverbmodifying?A.SheB.isC.singingD.beautifully参考答案：D8.Whatisthemainideaofaparagraph?A.ThefirstsentenceB.ThelastsentenceC.ThetopicsentenceD.Allthesentences参考答案：C9.Whichofthefollowingisacorrectuseofasemicolon?A.Ilovepizza;Ialsoloveburgers.B.Ilovepizza;becauseIloveburgers.C.Ilovepizza;Iloveburgers.D.Ilovepizza;butIloveburgers.参考答案：A10.Whatisthecorrectwaytopunctuateasentencewithanappositive?A.Thepresident,JoeBiden,isfromDelaware.B.ThepresidentJoeBidenisfromDelaware.C.Thepresident;JoeBidenisfromDelaware.D.Thepresident,JoeBidenisfromDelaware.参考答案：A二、填空题（共10小题，每题2分）1.ThecapitalofFranceis______.参考答案：Paris2.Ifyouwanttobesuccessful,youneedtowork______.参考答案：hard3.TheEarthrevolvesaroundtheSun______.参考答案：onceayear4.Waterboilsat100degreesCelsius______.参考答案：atsealevel5.ShespeaksEnglishvery______.参考答案：well6.Thebookisonthetable______.参考答案：there7.Heistallerthanhisbrother______.参考答案：very8.Thecatissleepingonthesofa______.参考答案：there9.Igotoschoolbybuseveryday______.参考答案：everyday10.Themeetingwillstartat9o'clock______.参考答案：thismorning三、判断题（共10小题，每题2分）1.TheGreatWallofChinaistheonlyman-madestructurevisiblefromspacewiththenakedeye.参考答案：×2.Shakespearewrote"RomeoandJuliet"entirelyiniambicpentameter.参考答案：×3.ThechemicalsymbolforgoldisAu,derivedfromtheLatinword"aurum."参考答案：√4.Photosynthesisprimarilyoccursintherootsofplants.参考答案：×5.TheEiffelTowerwasoriginallyintendedforBarcelona,Spain,buttheprojectwasrejected.参考答案：√6.TheMonaLisawaspaintedbyLeonardodaVinciintheearly16thcentury.参考答案：√7.Thespeedoflightinavacuumisapproximately299,792kilometerspersecond.参考答案：√8.TheAmazonRiveristhelongestriverintheworld.参考答案：×9.Theperiodictableisorganizedbasedonatomicmass.参考答案：×10.TheGreatBarrierReefislocatedoffthecoastofFlorida,USA.参考答案：×四、简答题（共8小题，每题2分）1.Pleasebrieflydescribethemainfunctionofthenucleusinaeukaryoticcell.参考答案：Thenucleusisthecontrolcenterofaeukaryoticcell,containingthecell'sgeneticmaterial(DNA)organizedintochromosomes.ItregulatesgeneexpressionandmediatesthereplicationofDNAduringthecellcycle.2.HowdoesphotosynthesiscontributetotheoxygencontentinEarth'satmosphere?参考答案：PhotosynthesiscontributestoEarth'satmosphericoxygenbyconvertingcarbondioxideandwaterintoglucoseandoxygenusingsunlight.Theoxygenproducedasabyproductisreleasedintotheatmosphere,whereitisessentialfortherespirationofmostlivingorganisms.3.Listthreemajordifferencesbetweenmitosisandmeiosis.参考答案：①Mitosisresultsintwogeneticallyidenticaldaughtercells,whilemeiosisproducesfourgeneticallydiversehaploidcells.②MitosisinvolvesoneroundofDNAreplicationandcelldivision,whereasmeiosisincludestworoundsofDNAreplicationandtwocelldivisions.③Mitosisisprimarilyusedforgrowthandrepair,whilemeiosisisessentialforsexualreproductionandgeneticdiversity.4.Explaintheroleofantibodiesintheimmuneresponse.参考答案：Antibodiesplayacriticalroleintheimmuneresponsebybindingtospecificantigensonpathogens,markingthemfordestructionbyotherimmunecells.Theycanneutralizetoxins,preventpathogensfromenteringcells,andactivatecomplementproteinstoenhancetheimmunereaction.5.WhatisthesignificanceofthegreenhouseeffectforEarth'sclimate?参考答案：ThegreenhouseeffectissignificantforEarth'sclimatebecauseittrapsheatintheatmosphere,maintainingtheplanet'stemperaturewithinarangethatsupportslife.Withoutthegreenhouseeffect,Earthwouldbetoocoldformostorganismstosurvive.However,excessivegreenhousegasescanleadtoglobalwarmingandclimatechange.6.Describethebasicstructureofaneuronanditsfunction.参考答案：Aneuronconsistsofacellbody(soma),dendrites,anaxon,andaxonterminals.Dendritesreceivesignalsfromotherneurons,whiletheaxontransmitssignalsawayfromthecellbodytootherneuronsortargetcells.Axonterminalsreleaseneurotransmitterstocommunicatewithadjacentneurons.7.Howdoestheprocessofosmosisaffectplantcells?参考答案：Osmosisaffectsplantcellsbycausingthemtoeitherbecometurgid(firm)whenplacedinahypotonicsolutionortowilt(losefirmness)whenplacedinahypertonicsolution.Thismovementofwaterhelpsmaintaincellshapeandturgorpressure,whichisessentialforplantstructureandgrowth.8.BrieflyexplaintheconceptofnaturalselectionasproposedbyCharlesDarwin.参考答案：Naturalselectionistheprocessbywhichorganismswithtraitsthatbettersuittheirenvironmentaremorelikelytosurviveandreproduce,passingthoseadvantageoustraitstothenextgeneration.Overtime,thisleadstotheadaptationandevolutionofspecies.五、阅读理解题（共8小题，每题3分）Thelocalcommunitycenterrecentlyorganizedaseriesofworkshopsaimedatimprovingresidents'digitalliteracy.Thefirstworkshop,heldlastSaturday,focusedonbasiccomputeroperations.Itattractedadiversegroupofparticipants,includingelderlyindividualswhowerenewtotechnology,middle-agedadultsseekingcareeradvancement,andteenagerslookingtoenhancetheironlineskills.Thesessioncoveredessentialtopicssuchasturningonacomputer,navigatingthedesktop,usingamouseandkeyboard,andaccessingtheinternet.Theinstructors,ateamofvolunteertechenthusiasts,usedsimplelanguageandvisualaidstomakethecontentaccessibletoall.Feedbackfromtheparticipantswasoverwhelminglypositive,withmanyexpressingtheireagernesstoattendfollow-upsessionsonmoreadvancedtopicslikeemailusageandonlineshoppingsafety.1.WhatwasthemainpurposeoftheworkshopheldlastSaturday?A.ToteachadvancedprogrammingskillsB.Toimproveresidents'digitalliteracyC.ToorganizeacommunitygatheringD.Toprovidecareercounselingservices参考答案：B2.WhichgroupofpeoplewasNOTmentionedasparticipatingintheworkshop?A.ElderlyindividualsB.Middle-agedadultsC.TeenagersD.Youngchildren参考答案：D3.Accordingtothepassage,whattopicswerecoveredinthefirstworkshop?A.EmailusageandonlineshoppingsafetyB.BasiccomputeroperationsC.AdvancedsoftwaredevelopmentD.Internetmarketingstrategies参考答案：B4.Whoweretheinstructorsfortheworkshop?A.ProfessionalITtrainersB.VolunteertechenthusiastsC.CommunitycenteremployeesD.Highschoolstudents参考答案：B5.Whatwasthereactionoftheparticipantstotheworkshop?A.TheywereindifferentB.TheywereskepticalC.TheywereenthusiasticD.Theyweredisappointed参考答案：C6.Whatwillthecommunitycenterlikelyoffernext?A.AseriesofadvancedworkshopsB.Aone-timecareerfairC.AweeklyfitnessclassD.Amonthlybookclub参考答案：A7.Whydidelderlyindividualsattendtheworkshop?A.TosocializewithotherseniorsB.TolearnhowtousecomputersC.TogetadiscountontechnologyD.Toattendafreemeal参考答案：B8.Theword"diverse"inthefirstparagraphisclosestinmeaningto:A.SimilarB.DifferentC.ExpensiveD.Popular参考答案：B标准答案与解析一、单项选择题1.参考答案：C解析：PresentContinuoustenseisusedtodescribeanactionthatbeganinthepastandcontinuesuptothepresent.Forexample,"Shehasbeenstudyingfortwohours."OptionA,SimplePresent,isusedforgeneraltruthsorhabitualactions.OptionB,SimplePast,isusedforactionsthatarecompletedinthepast.OptionD,PastContinuous,isusedtodescribeanactionthatwasongoinginthepastbeforeanotheractionoccurred.2.参考答案：D解析：Inthesentence"Thecatchasedthemouse,""mouse"isthedirectobjectbecauseitisthenounthatreceivestheactionoftheverb"chased."OptionA,"The,"isanarticle.OptionB,"cat,"isthesubject.OptionC,"chased,"istheverb.3.参考答案：C解析：Thecorrectpluralformof"child"is"children."OptionA,"childes,"isincorrect.OptionB,"child,"isthesingularform.OptionD,"child's,"isthepossessiveform.4.参考答案：A解析：Thesentence"Thebookwasreadbymeyesterday"isacorrectuseofthepassivevoicebecausethefocusisonthebookratherthanthepersonwhoreadit.OptionB,"Ireadthebookyesterday,"isactivevoice.OptionC,"Thebookreadswell,"isincorrectgrammar.OptionD,"Thebookisreading,"isincorrectverbform.5.参考答案：D解析：Thepastparticipleoftheverb"togo"is"gone."OptionA,"went,"isthepasttense.OptionB,"go,"isthepresenttense.OptionC,"going,"isthepresentparticiple.6.参考答案：B解析：Theconjunction"but"isusedtoshowcontrast.Forexample,"Iwanttogototheparty,butIhavetostudy."OptionA,"and,"isusedtoaddideas.OptionC,"or,"isusedtopresentalternatives.OptionD,"so,"isusedtoshowaresult.7.参考答案：D解析：Inthesentence"Sheissingingbeautifully,""beautifully"istheadverbmodifyingtheverb"singing."OptionA,"She,"isthesubject.OptionB,"is,"isthelinkingverb.OptionC,"singing,"isthepresentparticiple.8.参考答案：C解析：Themainideaofaparagraphisusuallyexpressedinthetopicsentence,whichisoftenthefirstorlastsentence.OptionA,"Thefirstsentence,"isnotalwaysthemainidea.OptionB,"Thelastsentence,"isnotalwaysthemainidea.OptionD,"Allthesentences,"isincorrect.9.参考答案：A解析：Asemicolonisusedtoconnecttwocloselyrelatedindependentclauses.Forexample,"Ilovepizza;Ialsoloveburgers."OptionB,"Ilovepizza;becauseIloveburgers,"isincorrectbecauseitshouldbeacommaoraconjunction.OptionC,"Ilovepizza;Iloveburgers,"isincorrectbecauseitshouldbeacomma.OptionD,"Ilovepizza;butIloveburgers,"isincorrectbecauseitshouldbeacomma.10.参考答案：A解析：Anappositiveisanounornounphrasethatrenamesanothernounrightbesideit.Itshouldbesetoffbycommas.Forexample,"Thepresident,JoeBiden,isfromDelaware."OptionB,"ThepresidentJoeBidenisfromDelaware,"isincorrectbecauseitlacksacomma.OptionC,"Thepresident;JoeBidenisfromDelaware,"isincorrectbecauseitshouldbeacomma.OptionD,"Thepresident,JoeBidenisfromDelaware,"isincorrectbecauseitlacksacommaafter"Biden."二、填空题1.参考答案：Paris解析：本题考查地理常识，考查法国的首都。法国的首都是巴黎，这是一个固定知识点。题干中的"ThecapitalofFrance"提示我们需要填写法国的首都，因此答案是Paris。2.参考答案：hard解析：本题考查英语词汇，考查形容词的用法。题干中的"Ifyouwanttobesuccessful"提示我们需要填写一个形容词来描述如何才能成功。根据常识和英语表达习惯，成功需要努力工作，因此答案是hard。3.参考答案：onceayear解析：本题考查天文学知识，考查地球绕太阳公转的频率。地球绕太阳公转一周需要大约365.25天，因此每年绕太阳公转一次。题干中的"revolvesaroundtheSun"提示我们需要填写地球绕太阳公转的频率，因此答案是onceayear。4.参考答案：atsealevel解析：本题考查物理知识，考查水的沸点。水的沸点受气压影响，在标准大气压下，水的沸点是100摄氏度。题干中的"boilsat100degreesCelsius"提示我们需要填写水的沸点是在什么条件下达到的，因此答案是atsealevel。5.参考答案：well解析：本题考查英语词汇，考查副词的用法。题干中的"ShespeaksEnglish"提示我们需要填写一个副词来描述她英语说得怎么样。根据常识和英语表达习惯，她英语说得很好，因此答案是well。6.参考答案：there解析：本题考查英语语法，考查方位介词的用法。题干中的"Thebookisonthetable"提示我们需要填写一个副词来描述书的位置。根据英语语法规则，表示在某个地方用there，因此答案是there。7.参考答案：very解析：本题考查英语比较级，考查形容词比较级的用法。题干中的"istallerthanhisbrother"提示我们需要填写一个副词来修饰比较级。根据英语语法规则，修饰比较级用very，因此答案是very。8.参考答案：there解析：本题考查英语语法，考查方位介词的用法。题干中的"Thecatissleepingonthesofa"提示我们需要填写一个副词来描述猫的位置。根据英语语法规则，表示在某个地方用there，因此答案是there。9.参考答案：everyday解析：本题考查英语语法，考查时间状语的用法。题干中的"Igotoschoolbybus"提示我们需要填写一个时间状语来描述每天的行为。根据英语语法规则，表示每天用everyday，因此答案是everyday。10.参考答案：thismorning解析：本题考查英语时间表达，考查会议开始的时间。题干中的"Themeetingwillstartat9o'clock"提示我们需要填写会议开始的时间。根据常识和英语表达习惯，会议可能是在早上9点开始，因此答案是thismorning。三、判断题1.参考答案：×解析：Thestatementisfalse.TheGreatWallofChinacannotbeseenfromspacewiththenakedeye.Thisisacommonmisconception,butastronautshaveconfirmedthatitisnotvisiblefromlowEarthorbitduetoitswidthandtheclarityrequiredtoseeit.2.参考答案：×解析：Thestatementisfalse.Whilemuchof"RomeoandJuliet"iswritteniniambicpentameter,itisnotentirelyinthismeter.Shakespeareoftenvariedthemetertosuitthedramaticneedsofthescene.3.参考答案：√解析：Thestatementistrue.ThechemicalsymbolforgoldisAu,whichisderivedfromtheLatinword"aurum,"meaninggold.Thisisawell-establishedfactinchemistry.4.参考答案：×解析：Thestatementisfalse.Photosynthesisprimarilyoccursintheleavesofplants,specificallyinthechloroplasts,wherechlorophyllcapturessunlight.Rootsareprimarilyresponsibleforabsorbingwaterandnutrients.5.参考答案：√解析：Thestatementistrue.TheEiffelTowerwasoriginallyproposedforBarcelona,Spain,in1888.However,theprojectwasrejectedbytheCatalangovernmentduetoconcernsaboutitsdesignandcost.6.参考答案：√解析：Thestatementistrue.TheMonaLisawaspaintedbyLeonardodaVincibetween1503and1506,duringtheearly16thcentury.ItisoneofhismostfamousworksandishousedintheLouvreMuseuminParis.7.参考答案：√解析：Thestatementistrue.Thespeedoflightinavacuumisapproximately299,792kilometerspersecond.Thisvalueisafundamentalconstantinphysicsandisdenotedbythesymbolc.8.参考答案：×解析：Thestatementisfalse.TheNileRiverinAfricaisthelongestriverintheworld,nottheAmazonRiver.TheAmazonRiveristhelargestbyvolume,butitisshorterthantheNile.9.参考答案：×解析：Thestatementisfalse.Theperiodictableisorganizedbasedonatomicnumber,notatomicmass.ThisarrangementwasestablishedbyDmitriMendeleevandiscrucialforunderstandingthepropertiesofelements.10.参考答案：×解析：Thestatementisfalse.TheGreatBarrierReefislocatedoffthecoastofQueensland,Australia,notFlorida,USA.Itisthelargestcoralreefsystemintheworld.四、简答题1.参考答案：Thenucleusisthecontrolcenterofaeukaryoticcell,containingthecell'sgeneticmaterial(DNA)organizedintochromosomes.ItregulatesgeneexpressionandmediatesthereplicationofDNAduringthecellcycle.解析：Thenucleusfunctionsasthecommandcenterforeukaryoticcellsbyhousingthecell'sDNA,whichcontainstheinstructionsforbuildingandmaintainingtheorganism.Itcontrolswhichgenesareturnedonoroff,thusregulatingcellularactivities.Additionally,thenucleusisinvolvedinDNAreplicationbeforecelldivision,ensuringthateachnewcellreceivesacompletesetofgeneticinstructions.Thiscentralroleiscrucialformaintainingcellularfunctionandintegrity.2.参考答案：PhotosynthesiscontributestoEarth'satmosphericoxygenbyconvertingcarbondioxideandwaterintoglucoseandoxygenusingsunlight.Theoxygenproducedasabyproductisreleasedintotheatmosphere,whereitisessentialfortherespirationofmostlivingorganisms.解析：Photosynthesisistheprocessbywhichplants,algae,andsomebacteriausesunlighttoconvertcarbondioxideandwaterintoglucose(asugar)andoxygen.Theoxygenisreleasedintotheatmosphereduringthelight-dependentreactionsofphotosynthesis.ThisoxygenproductionisvitalforlifeonEarth,asitprovidestheoxygenthataerobicorganismsuseforcellularrespirationtogenerateenergy.3.参考答案：①Mitosisresultsintwogeneticallyidenticaldaughtercells,whilemeiosisproducesfourgeneticallydiversehaploidcells.②MitosisinvolvesoneroundofDNAreplicationandcelldivision,whereasmeiosisincludestworoundsofDNAreplicationandtwocelldivisions.③Mitosisisprimarilyusedforgrowthandrepair,whilemeiosisisessentialforsexualreproductionandgeneticdiversity.解析：Mitosisandmeiosisarebothprocessesofcelldivision,buttheyservedifferentpurposesandhavedistinctoutcomes.Mitosisisatypeofasexualreproductionthatproducestwodaughtercellsthataregeneticallyidenticaltotheparentcell,ensuringthateachnewcellhasthesamenumberofchromosomes.Thisprocessiscrucialforgrowth,development,andtissuerepair.Incontrast,meiosisisaspecializedformofcelldivisionthatreducesthechromosomenumberbyhalf,producingfourgeneticallyuniquehaploidcells.Thisreductionisnecessaryforsexualreproduction,asitensuresthatoffspringhavethecorrectnumberofchromosomesafterfertilization.Thegeneticdiversitygeneratedbymeiosisisalsoimportantfortheadaptationandevolutionofspecies.4.参考答案：Antibodiesplayacriticalroleintheimmuneresponsebybindingtospecificantigensonpathogens,markingthemfordestructionbyotherimmunecells.Theycanneutralizetoxins,preventpathogensfromenteringcells,andactivatecomplementproteinstoenhancetheimmunereaction.解析：Antibodies,alsoknownasimmunoglobulins,areproteinsproducedbyBcellsthatarespecificallydesignedtorecognizeandneutralizeforeignsubstances,suchasbacteria,viruses,andtoxins.Whenanantibodybindstoanantigen,itcanperformseveralfunctions.First,itcanblockthepathogenfromenteringhostcells,preventinginfection.Second,itcanactivatethecomplementsystem,agroupofproteinsthatcandirectlydestroypathogensorenhancethephagocytosis(engulfing)ofpathogensbyphagocytes.Additionally,antibodiescanopsonizepathogens,makingthemmorerecognizableandeasiertodestroybyphagocytesandotherimmunecells.Thisbindingandneutralizationprocessisakeycomponentoftheadaptiveimmuneresponse,providingspecificandlong-lastingprotectionagainstpathogens.5.参考答案：ThegreenhouseeffectissignificantforEarth'sclimatebecauseittrapsheatintheatmosphere,maintainingtheplanet'stemperaturewithinarangethatsupportslife.Withoutthegreenhouseeffect,Earthwouldbetoocoldformostorganismstosurvive.However,excessivegreenhousegasescanleadtoglobalwarmingandclimatechange.解析：ThegreenhouseeffectisanaturalprocessthatwarmstheEarth'ssurface.WhentheSun'senergyreachestheEarth,someofitisreflectedbackintospace,butmostisabsorbedbytheEarthandreradiatedasheat.Greenhousegases,suchascarbondioxide(CO₂),methane(CH₄),andwatervapor(H₂O),intheatmosphereabsorbthisheatandpreventitfromescapingintospace,effectivelyinsulatingtheEarth.ThistrappedheatkeepstheEarth'saveragetemperatureatabout15°C(59°F),whichissuitableforlife.Withoutthegreenhouseeffect,theEarth'saveragetemperaturewouldbeabout-18°C(0°F),makingittoocoldformostlifeforms.However,anexcessiveconcentrationofgreenhousegasescanenhancethegreenhouseeffect,leadingtoglobalwarmingandclimatechange,whichcanhavedetrimentaleffectsonecosystemsandhumansocieties.6.参考答案：Aneuronconsistsofacellbody(soma),dendrites,anaxon,andaxonterminals.Dendritesreceivesignalsfromotherneurons,whiletheaxontransmitssignalsawayfromthecellbodytootherneuronsortargetcells.Axonterminalsreleaseneurotransmitterstocommunicatewithadjacentneurons.解析：Neuronsarethefundamentalunitsofthenervoussystem,responsiblefortransmittinginformationthroughoutthebody.Thebasicstructureofaneuronincludesthecellbody(soma),whichcontainsthenucleusandorganellesnecessaryfortheneuron'ssurvivalandfunction.Dendritesarebranch-likeextensionsthatreceivesignalsfromotherneuronsandtransmitthemtowardthecellbody.Theaxonisalong,slenderprojectionthatcarriessignalsawayfromthecellbodytootherneuronsortargetcells,suchasmusclecells.Attheendoftheaxonareaxonterminals,whichreleaseneurotransmittersintothesynapticcleft,thesmallgapbetweenneurons.Theseneurotransmittersbindtoreceptorsonthereceivingneuron,eitherexcitingorinhibitingitsactivity.Thisintricatestructureallowsneuronstoefficientlycommunicateandcoordinatethefunctionsofthenervoussystem.7.参考答案：Osmosisaffectsplantcellsbycausingthemtoeitherbecometurgid(firm)whenplacedinahypotonicsolutionortowilt(losefirmness)whenplacedinahypertonicsolution.Thismovementofwaterhelpsmaintaincellshapeandturgorpressure,whichisessentialforplantstructureandgrowth.解析：Osmosisisthemovementofwateracrossasemipermeablemembranefromanareaoflowersoluteconcentrationtoanareaofhighersoluteconcentration.Inplantcells,osmosisplaysacrucialroleinmaintainingcellturgorpressure,whichisthepressureexertedbythecellcontentsagainstthecellwall.Whenplantcellsareplacedinahypotonicsolution(lowersoluteconcentrationoutsidethecell),watermovesintothecell,causingittoswellandbecometurgid.Thisturgorpressureisessentialformaintainingthestructuralintegrityofplanttissuesandforprocessessuchasleafexpansionandstemelongation.Conversely,whenplantcellsareplacedinahypertonicsolution(highersoluteconcentrationoutsidethecell),watermovesoutofthecell,causingittoshrinkandwilt.Thislossofturgorpressurecanleadtowiltingandimpairedplantfunction.Therefore,osmosisisvitalformaintainingthehealthandgrowthofplants.8.参考答案：Naturalselectionistheprocessbywhichorganismswithtraitsthatbettersuittheirenvironmentaremorelikelytosurviveandreproduce,passingthoseadvantageoustraitstothenextgeneration.Overtime,thisleadstotheadaptationandevolutionofspecies.解析：Naturalselection,asproposedbyCharlesDarwin,isafundamentalmechanismofevolution.Itoperatesonthevariationthatexistswithinanypopulation.Individualswithtraitsthatarebettersuitedtotheirenvironmentaremorelikelytosurviveandreproduce,passingthosebeneficialtraitstotheiroffspring.Overmanygenerat