2026学年九年级英语下册第七单元核心考点单元练习含答案及解析

2026学年九年级英语下册第七单元核心考点单元练习含答案及解析考试时长：120分钟满分：100分班级：__________姓名：__________学号：__________得分：__________考核对象：九年级学生试卷总分：100分一、单选题（总共10题，每题2分，共20分）1.Whatdoes"sustainabledevelopment"meanaccordingtothetext?A.RapideconomicgrowthatanycostB.ProtectingtheenvironmentwithouteconomicprogressC.BalancingeconomicgrowthwithenvironmentalprotectionD.Reducingindustrialproductiontosaveresources参考答案：C2.WhichofthefollowingisNOTaproblemcausedbyplasticwaste?A.PollutionofoceansB.HarmtowildlifeC.ImprovementofsoilqualityD.Healthriskstohumans参考答案：C3.Thephrase"takeaction"inthepassageisclosestinmeaningto:A.WaitandseeB.DosomethingimmediatelyC.IgnoretheproblemD.Discusstheissuelater参考答案：B4.Whatisthemainideaofthesecondparagraph?A.ThehistoryofplasticinventionB.ThebenefitsofusingplasticC.ThenegativeeffectsofplasticwasteD.Thepopularityofplasticproducts参考答案：C5.Accordingtothetext,whichcountryismostlikelytofacesevereplasticpollution?A.NorwayB.SwedenC.ChinaD.Japan参考答案：C6.Theword"significant"inthepassageismostsimilarto:A.SmallB.ImportantC.ExpensiveD.Difficult参考答案：B7.Whatdoestheauthorsuggestpeopledotoreduceplasticuse?A.BuymoreplasticproductsB.RecycleasmuchaspossibleC.Avoidsingle-useplasticsD.Useplasticforlongerperiods参考答案：C8.Thepassagementions"biodegradablematerials"asanalternativetoplastic.Whatdoesthismean?A.MaterialsthatbecomeplasticovertimeB.MaterialsthatbreakdownnaturallyC.MaterialsthataremoreexpensiveD.Materialsthatarehardertorecycle参考答案：B9.Whichsentencefromthetextisanexampleofcauseandeffect?A."Plasticwasteisamajorenvironmentalissue."B."Manypeopleuseplasticeveryday."C."Ifwedon’treduceplasticuse,theenvironmentwillsuffer."D."RecyclinghelpsprotecttheEarth."参考答案：C10.Whatistheauthor’spurposeinwritingthispassage?A.TosellplasticproductsB.TocriticizeplasticcompaniesC.ToinformreadersaboutaproblemandsuggestsolutionsD.Toentertainwithplastic-relatedstories参考答案：C---二、填空题（总共10题，每题2分，共20分）1.Thegovernmentshould______toreduceplasticpollution.2.Recyclinghelps______theenvironment.3.Single-useplasticsarea______problem.4.Biodegradablematerials______innature.5.Manyanimals______byplasticwaste.6.Sustainabledevelopmentmeans______economicgrowthandenvironmentalprotection.7.TheGreatBarrierReefis______byplasticpollution.8.Weshould______plasticbagswhenshopping.9.Plastictakeshundredsofyearsto______.10.Usingreusablebottlescan______plasticwaste.参考答案：1.takeaction2.protect3.serious4.breakdown5.die6.balancing7.affected8.avoid9.decompose10.reduce---三、判断题（总共10题，每题2分，共20分）1.Plasticiscompletelyharmlesstotheenvironment.(×)2.Recyclingallplasticwastecansolveenvironmentalproblems.(×)3.Thetextsuggeststhatplasticisnotamajorissue.(×)4.Biodegradablematerialsarebetterfortheenvironmentthanplastic.(√)5.Manycountrieshavealreadyeliminatedplasticpollution.(×)6.Theauthorbelievesplasticcompaniesshouldbeblamed.(×)7.Reducingplasticuseiseasyforeveryone.(×)8.TheGreatBarrierReefisnotaffectedbyplasticwaste.(×)9.Sustainabledevelopmentfocusesonlyoneconomicgrowth.(×)10.Usingreusablecontainersisawaytoreduceplasticwaste.(√)参考答案：1.×2.×3.×4.√5.×6.×7.×8.×9.×10.√---四、简答题（总共3题，每题4分，共12分）1.Whatarethreeproblemscausedbyplasticwaste?答案要点：-Pollutionofoceansandrivers.-Harmtowildlife(e.g.,animalseatingplastic).-Healthriskstohumans(e.g.,chemicalsleachingintofood).2.Howcanindividualsreduceplasticuse?答案要点：-Usereusablebags,bottles,andcontainers.-Avoidsingle-useplastics(e.g.,straws,cutlery).-Recycleplasticproperly.-Supportbusinessesthatusesustainablematerials.3.Whyissustainabledevelopmentimportant?答案要点：-Balanceseconomicgrowthwithenvironmentalprotection.-Ensuresresourcesareavailableforfuturegenerations.-Reducespollutionandclimatechange.---五、应用题（总共2题，每题9分，共18分）1.Imagineyouareastudent.Writeashortparagraph(5-7sentences)suggestingthreewaysyourschoolcanreduceplasticwaste.答案要点：-"Ourschoolcouldreduceplasticwastebybanningsingle-useplasticsincafeterias."-"Wecouldsetupmorerecyclingbinsaroundcampus."-"Organizingawarenesscampaignswouldalsohelpstudentsunderstandtheproblem."-"Encouragingreusablewaterbottlesandlunchcontainerswouldmakeabigdifference."2.Readthefollowingscenarioandanswerthequestion:Alocalrestaurantusesalotofplasticstrawsandcutlery.Theownersaysit’sbecausecustomerspreferthem.Whatcouldtheownerdotoreduceplasticusewhilestillsatisfyingcustomers?答案要点：-Offerpaperstrawsasanalternative.-Providereusablecutleryforregularcustomers.-Educatecustomersabouttheenvironmentalimpactofplastic.-Chargeasmallfeeforplasticstrawstodiscouragetheiruse.---标准答案及解析一、单选题1.C-"Sustainabledevelopment"meansbalancingeconomicgrowthwithenvironmentalprotection.2.C-Plasticwastedoesnotimprovesoilquality;itpollutesit.3.B-"Takeaction"meansdoingsomethingimmediately,notwaiting.4.C-Thesecondparagraphfocusesonthenegativeeffectsofplasticwaste.5.C-Chinausesalotofplastic,leadingtoseverepollution.6.B-"Significant"meansimportant,similarto"major"or"notable."7.C-Avoidingsingle-useplasticsisakeysolutionmentioned.8.B-Biodegradablematerialsbreakdownnaturally,unlikeplastic.9.C-"Ifwedon’treduceplasticuse,theenvironmentwillsuffer"showscause(notreducinguse)andeffect(environmentsuffering).10.C-Theauthorinformsreadersabouttheproblemandsuggestssolutions.二、填空题1.takeaction2.protect3.serious4.breakdown5.die6.balancing7.affected8.avoid9.decompose10.reduce三、判断题1.×-Plasticpollutesandharmstheenvironment.2.×-Recyclinghelpsbutdoesn’tsolveallproblems.3.×-Plasticpollutionisamajorissue.4.√-Biodegradablematerialsarebetterthanplastic.5.×-Manycountriesstillstrugglewithplasticpollution.6.×-Theauthorfocusesonsolutions,notblamingcompanies.7.×-Reducingplasticuserequireseffortfromeveryone.8.×-TheGreatBarrierReefisaffectedbyplasticwaste.9.×-Sustainabledevelopmentbalanceseconomyandenvironment.10.√-Reusablecontainersreduceplasticwaste.四、简答题1.Threeproblemscausedbyplasticwaste:-Pollutionofoceansandrivers(plasticaccumulatesinwaterbodies).-Harmtowildlife(animalsingestplasticorgetentangled).-Healthriskstohumans(plasticchemicalscontaminatefoodandwater).2.Waystoreduceplasticuse:-Usereusablebags,bottles,andcontainersinsteadofdisposableones.-Avoidsingle-useplasticslikestraws,cutlery,andplasticwrap.-Recycleplasticproperlytoensureit’sreused.-Supportbusinessesthatusesustainablematerials.3.Importanceofsustainabledevelopment:-Itensureseconomicgrowthwithoutharmingtheenvironment.-Itpreservesresourcesforfuturegenerations.-Itreducespollutionandmitigatesclimatechange.五、应用题