9.2026年教科开心英语九年级生物下册完形填空专项卷

2026年教科开心英语九年级生物下册完形填空专项卷2026年教科开心英语九年级生物下册完形填空专项卷考试时长：60分钟满分：100分命题范围：九年级英语+生物下册跨学科版本：教科开心版姓名：________班级：________学号：________得分：________一、生态主题完形填空（共1篇，每小题2分，共20分）阅读下面短文，从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。Aforestecosystemisanaturalcommunitymadeupofplants,animalsandmicroorganisms.Allthelivingthingsintheforest___1___witheachotherandwiththeenvironment.Treesarethemostimportant___2___intheforestecosystem.Theyusesunlighttomakefoodthroughphotosynthesis,andprovide___3___andshelterforotherlivingthings.Rabbits,deerandotherplant-eatinganimalsarecalledprimaryconsumers.They___4___plantstogetenergy.Thentherearesecondaryconsumerslikefoxesandwolves,whicheatsmalleranimals.___5___areanotherimportantpartoftheecosystem.Fungiandbacteriabreakdowndeadplantsandanimalsintonutrients.Thesenutrientsgobackintothe___6___,soplantscanusethemagain.Thisformsanutrientcycle.Theforestecosystemalsohasagreatinfluenceontheclimate.Treescan___7___carbondioxideandreleaseoxygen,whichhelpstocleantheair.Theyalsokeepthesoilfrombeingwashedawayby___8___.However,humanactivitiesare___9___manyforestecosystems.Cuttingdowntrees,huntingwildanimalsandpollutionallbreakthebalanceofnature.Ifwedon'tprotecttheforests,manyspecieswill___10___forever.Wemusttakeactiontokeeptheecosystemstable.1.A.competeB.interactC.fightD.compare2.A.producersB.consumersC.decomposersD.predators3.A.waterB.soilC.foodD.space4.A.feedonB.takeinC.giveupD.throwaway5.A.PlantsB.AnimalsC.DecomposersD.Humans6.A.airB.waterC.soilD.sunlight7.A.takeinB.giveoutC.turnintoD.putaway8.A.windB.rainC.snowD.ice9.A.protectingB.improvingC.damagingD.creating10.A.appearB.surviveC.evolveD.disappear二、植物生理主题完形填空（共1篇，每小题2分，共20分）阅读下面短文，从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。PhotosynthesisisoneofthemostimportantprocessesonEarth.Ithappensintheleavesofgreenplants.Theplantsusesunlight,waterandcarbondioxidetomakeglucoseand___1___.Theprocessofphotosynthesishastwomainstages.Thefirststageneeds___2___.Duringthisstage,sunlightiscaughtbychlorophyll(叶绿素)intheleaves.Theenergyfromsunlightisusedto___3___waterintooxygenandhydrogen.Theoxygenisreleasedintotheair,andthehydrogeniskeptforthenextstage.Thesecondstagedoesnotneedlight.Itiscalledthedarkreaction.Duringthisstage,carbondioxidefromtheairiscombinedwithhydrogentomakeglucose.Thisglucoseprovides___4___fortheplanttogrow.Someglucoseisstoredasstarch(淀粉)intheroots,fruitsorseeds.Photosynthesisisveryimportanttoalllivingthings.First,itprovidesmostofthe___5___intheair,whichhumansandanimalsneedtobreathe.Second,itisthebaseofalmostallfoodchains.Allanimals,nomattertheyeatplantsorotheranimals,___6___dependonphotosynthesisforfood.Third,photosynthesishelpsto___7___globalwarming.Bytakingincarbondioxide,agreenhousegas,plantsslowdowntheriseofEarth'stemperature.Scientistsarenowstudyinghowto___8___theefficiencyofphotosynthesis.Theyhopetodevelopnewcropsthatcanproducemorefoodwithlesswaterandsunlight.Thiswillhelptosolvethe___9___problemastheworldpopulationkeepsgrowing.Learningaboutphotosynthesisisnotjustforbiologyclass.Ithelpsusunderstandthe___10___ofplantsandtheimportanceofprotectingtheenvironment.1.A.nitrogenB.oxygenC.hydrogenD.carbondioxide2.A.waterB.airC.sunlightD.soil3.A.breakB.bringC.takeD.put4.A.energyB.waterC.airD.heat5.A.carbondioxideB.oxygenC.waterD.nitrogen6.A.directlyB.indirectlyC.completelyD.hardly7.A.speedupB.slowdownC.addtoD.resultin8.A.reduceB.limitC.improveD.check9.A.foodB.waterC.energyD.pollution10.A.beautyB.valueC.shapeD.color三、人体循环主题完形填空（共1篇，每小题2分，共20分）阅读下面短文，从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。Theheartisaveryimportantorganinthehumanbody.Itisaboutthesizeofyourfistandislocatedinthecenterofyourchest,slightlytotheleft.Itsmainjobisto___1___bloodaroundthebodythroughbloodvessels.Thehearthasfourchambers(腔):twoatria(心房)onthetopandtwoventricles(心室)onthebottom.Therightsideoftheheartreceivesbloodthatis___2___inoxygen.Thisbloodcomesbackfromthebodyandispumpedtothe___3___topickupoxygenandgetridofcarbondioxide.Thisiscalledthepulmonarycirculation(肺循环).Theleftsideoftheheartreceivesoxygen-richbloodfromthelungs.Itthenpumpsthisbloodtothe___4___ofthebodythroughtheaorta(主动脉).Thisiscalledthesystemiccirculation(体循环).Thehearthasfourvalves(瓣膜)that___5___bloodflowsintherightdirection.Theyopenandcloseastheheartbeats.Whentheheartbeats,itcontracts(收缩)topushbloodout.Whenit___6___,itfillswithbloodagain.Anormalheartbeatsabout60to100timesperminutewhenyouareresting.Whenyouexercise,yourbodyneedsmoreoxygen,soyourheartbeats___7___tosendmoreoxygen-richbloodtoyourmuscles.Tokeepyourhearthealthy,youshoulddoregularexercise,eatabalanceddietandavoidtoomuch___8___food.Smokinganddrinkingtoomuchalcoholcanalsodamagetheheart.Heartdiseaseisoneofthemostcommon___9___ofdeathintheworld.Manypeoplehaveheartproblemsbecauseofunhealthylifestyles.___10___,itisnevertoolatetomakechangestoprotectyourheart.Evensmallchangeslikewalkingeverydaycanmakeabigdifference.1.A.carryB.pumpC.pullD.push2.A.richB.highC.lowD.full3.A.lungsB.liverC.kidneysD.stomach4.A.partB.halfC.restD.center5.A.makesureB.findoutC.thinkaboutD.lookfor6.A.beatsB.relaxesC.movesD.works7.A.slowerB.softerC.fasterD.louder8.A.freshB.healthyC.saltyD.sweet9.A.reasonsB.causesC.resultsD.problems10.A.AlsoB.BesidesC.HoweverD.Therefore四、免疫调节主题完形填空（共1篇，每小题2分，共20分）阅读下面短文，从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。Theimmunesystemisthebody'sdefensesystemagainstdiseases.Itworkstofindandfightagainstpathogens(病原体)likevirusesandbacteriathatcanmakeus___1___.Theimmunesystemhastwomainlinesofdefense.Thefirstlineistheouterbarriers.Ourskinactslikeawallthat___2___pathogensfromenteringthebody.Themucus(粘液)inournoseandthroatcantrapgerms,andstomachacidcankillmanybacteriathatwe___3___withfood.Ifpathogensgetpastthefirstline,thesecondlineofdefensestartsworking.Thisincludeswhitebloodcellsthattravelaroundthebodytofindand___4___invaders.Somewhitebloodcellscan"eat"harmfulbacteria.Otherscanmakeantibodies(抗体)thathelpthebodyrememberthepathogen.___5___thesamepathogenentersthebodyagain,theimmunesystemcanfightitoffquickly.Thisiswhyyoudon'tgetthesamediseasetwiceveryoften.Vaccines(疫苗)workbyusingthisabilityoftheimmunesystem.Theyhaveweakordeadpathogensthatcan'tmakeyousick.Whenyougetavaccine,yourimmunesystem___6___antibodiesagainstthosepathogens.Thisway,ifyoumeettherealpathogenlater,yourbodyis___7___tofightit.Theimmunesystemisusuallyverygoodatprotectingus,___8___sometimesitcanmakemistakes.Forexample,allergies(过敏)happenwhentheimmunesystemreactstoharmlessthingslikepollen(花粉)orfoodasiftheyaredangerous.Tokeepyourimmunesystemstrong,youshouldgetenoughsleep,eathealthyfood,exerciseregularlyand___9___stress.DuringtheCOVID-19pandemic,peoplelearnedalotabouttheimmunesystem.Scientistsdevelopedvaccinesinaveryshorttimetohelppeoplebuild___10___againstthevirus.Thisshowshowimportanttheimmunesystemistoourhealth.1.A.sickB.strongC.healthyD.happy2.A.helpsB.stopsC.invitesD.allows3.A.drinkB.eatC.breatheD.touch4.A.protectB.avoidC.attackD.hide5.A.IfB.UnlessC.BecauseD.Though6.A.destroysB.producesC.discoversD.forgets7.A.readyB.lateC.slowD.weak8.A.soB.orC.butD.and9.A.increaseB.reduceC.createD.feel10.A.protectionB.interestC.trustD.confidence五、生物技术主题完形填空（共1篇，每小题2分，共20分）阅读下面短文，从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。Inrecentyears,geneediting(基因编辑)hasbecomeahottopicinbiotechnology.Itallowsscientiststo___1___theDNAoflivingthings.Thistechnologycanbeusedinmanyareas,suchasagriculture,medicineandenvironmentalprotection.CRISPR-Cas9isthemost___2___geneeditingtooltoday.Itislikeapairof"molecularscissors"thatcancutDNAataspecificplace.Scientistscanthen___3___,removeorreplacepartsoftheDNA.Inagriculture,geneeditingisusedtoimprovecrops.Forexample,scientistshaveeditedthegenesofricetomakeit___4___toliveindryareasandfightagainstpests.Thismeansfarmerscangrowmorericewithlesswaterandfewerpesticides(杀虫剂).Geneeditingcanalsohelpreducefoodwaste.Somefruitscanbeeditedtostayfreshlonger,sotheyare___5___totransportandstore.Inmedicine,geneeditingcanbeusedtotreatgeneticdiseases.Thesediseasesarecausedby___6___inaperson'sDNA.Scientistscaneditthefaultygenestofixtheproblem.In2023,ageneeditingtreatmentwas___7___usedtocureachildwithaseriousblooddisease.Thiswasabigbreakthrough.However,geneeditingalsoraisesmany___8___questions.Forexample,isitrighttoeditthegenesofhumanembryos(胚胎)?Somepeopleworrythatpeoplemightusegeneeditingtomake"designerbabies"with___9___looksorintelligence.Therearealsosafetyconcern