2025-2026年湖南省部编版九年级英语上册第5单元同步练习题

2025-2026年湖南省部编版九年级英语上册第5单元同步练习题一、单选题（总共10题，每题2分，共20分）1.根据第5单元课文内容，Whatisthemainpurposeofthepassage"ProtectingtheEnvironment"?A.Toadvertiseanewenvironmentalproduct.B.Todescribethebeautyofnature.C.Topersuadepeopletotakeactionagainstpollution.D.Tointroducefamousenvironmentalscientists.（解析：文章主要围绕环境污染问题展开，强调个人责任和行动，选项C最符合主旨。选项A、B、D与文章核心内容无关，故选C。）2.Intheunit,"SaveWater,SavetheWorld"ismentionedasaslogan.Whichsentencebestexplainsitsmeaning?A.Drinkingwateristhemostimportantactivityinlife.B.Waterconservationisunnecessaryindevelopedcountries.C.Protectingwaterresourceshelpsglobalsustainability.D.Watercansolveallenvironmentalproblems.（解析：该口号强调水资源保护与全球生态平衡的关系，选项C准确概括了其深层含义。选项A、B、D过于片面或夸大，故选C。）3.Accordingtothereadingpassage"TheGreatBarrierReef,"whichofthefollowingisNOTathreattocoralreefs?A.Climatechangeleadingtorisingseatemperatures.B.Overfishingthatdisruptsmarineecosystems.C.Plasticpollutioncausingphysicaldamage.D.Governmentfundingformarineresearch.（解析：文章指出气候变暖、过度捕捞和塑料污染是珊瑚礁的主要威胁，而政府科研投入属于保护措施，非威胁因素，故选D。）4.Theunitincludesadialoguebetweentwostudentsdiscussingrecyclinghabits.WhatdoesLilysuggestintheconversation?A.Buyingdisposableproductstoreducewaste.B.Throwingawaytrashwithoutsorting.C.Usingreusablebagsinsteadofplasticones.D.Ignoringenvironmentalissuesbecausetheyaretoosmall.（解析：根据课文对话，Lily提倡使用环保袋替代塑料袋，选项C符合其观点。其他选项与环保理念背道而驰，故选C。）5.Intheunit,"Reduce,Reuse,Recycle"ispresentedasathree-stepapproachtowastemanagement.Whichstepisdescribedasthemosteffective?A.Reduce—minimizingconsumption.B.Reuse—extendingproductlife.C.Recycle—processingwasteintonewmaterials.D.Allstepsareequallyimportant.（解析：文章强调源头减量（Reduce）是解决环境问题的根本，故A为最佳答案。选项B、C是后续步骤，选项D过于笼统，故选A。）6.Thepassage"ElephantsinDanger"mentionspoachingasamajorthreat.Whichsentencebestexplainswhypoachingisillegal?A.Elephantsaretoodangerousforhumanstoapproach.B.Poachinghelpsprotectwildlifepopulations.C.Itviolatesinternationallawsagainstanimalcruelty.D.Elephantsareonlyvaluablefortheirivory.（解析：文章指出偷猎违反野生动物保护法，选项C准确反映法律立场。其他选项或错误或片面，故选C。）7.Theunitincludesalettertoalocalnewspaperaboutparkcleanliness.Whatistheauthor'smainconcern?A.Theparkistoocrowdedwithtourists.B.Litteringiscausinghealthhazards.C.Thegovernmentisnotspendingenoughonparks.D.Dogsarenotallowedinthepark.（解析：根据课文信件内容，作者主要批评乱扔垃圾现象，选项B为正确答案。其他选项未在文中提及，故选B。）8.Intheunit,"EnergyConservation"isdiscussedasawaytocombatclimatechange.WhichexampleisNOTmentionedinthetext?A.UsingLEDbulbsinsteadofincandescentones.B.Turningofflightswhenleavingaroom.C.Drivingcarswithhighfuelefficiency.D.Buildinglarge-scalewindfarms.（解析：文章列举了节能灯、随手关灯、新能源汽车等个人和企业措施，但未涉及大型风电项目，故选D。）9.Theunitincludesareadingaboutsustainableagriculture.Whatdoesorganicfarmingemphasize?A.Usingchemicalfertilizerstoincreaseyield.B.Protectingsoilhealththroughnaturalmethods.C.Plantinggeneticallymodifiedcrops.D.Increasingfarmsizetomaximizeprofits.（解析：有机农业的核心是无化学污染，选项B符合定义。其他选项与有机理念相悖，故选B。）10.Theunitconcludeswithaspeechaboutenvironmentalresponsibility.Whatdoesthespeakerurgestudentstodo?A.Focusonlyontheirstudiesandignoreenvironmentalissues.B.Joinlocalenvironmentalgroupstotakeaction.C.Buymoreelectronicdevicestoimprovetechnology.D.Waitforadultstosolveallenvironmentalproblems.（解析：演讲鼓励学生参与环保实践，选项B最符合号召。其他选项或消极或错误，故选B。）二、填空题（总共10题，每题2分，共20分）1.Thepassage"ProtectingtheEnvironment"suggeststhat_______isthefirststepinreducingpollution.（参考答案：reducingwaste）（解析：文章强调减少消费是环保的基础，故填"reducingwaste"。）2.In"TheGreatBarrierReef,"scientistswarnthatrisingocean_______canleadtocoralbleaching.（参考答案：temperatures）（解析：课文明确指出海水温度升高是珊瑚白化的主因，故填"temperatures"。）3.Therecyclingsymbolconsistsofthreechasingarrowsmadeof_______colors.（参考答案：three）（解析：国际回收标志包含三个箭头，故填"three"。）4.Accordingtothedialogue,Tombelievesthatusingreusablebottleshelps_______plasticwaste.（参考答案：reduce）（解析：对话中Tom提到环保袋能减少塑料垃圾，故填"reduce"。）5.Theunitintroducestheconceptof"biodegradablematerials,"whichmeanstheycanbebrokendownby_______.（参考答案：nature）（解析：课文解释生物降解物能被自然分解，故填"nature"。）6.In"ElephantsinDanger,"conservationistsarguethatprotectinghabitatsisasimportantas_______poaching.（参考答案：fighting）（解析：文章强调打击偷猎与保护栖息地同等重要，故填"fighting"。）7.Thelettertothenewspapersuggeststhatparkvisitorsshould_______theirtrashproperly.（参考答案：disposeof）（解析：信中呼吁正确处理垃圾，故填"disposeof"。）8.Thepassage"EnergyConservation"mentionsthatturningoffunusedelectronicscansave_______electricity.（参考答案：alotof）（解析：文章指出关掉电器能大量节能，故填"alotof"。）9.Organicfarmingavoidssynthetic_______togrowcrops.（参考答案：pesticides）（解析：有机农业禁止使用杀虫剂等化学物质，故填"pesticides"。）10.Theunit'sspeechconcludeswiththemessagethateveryindividualcanmakea_______difference.（参考答案：small）（解析：演讲强调个人力量虽小但重要，故填"small"。）三、判断题（总共10题，每题2分，共20分）1.Thepassage"SaveWater,SavetheWorld"onlyfocusesonpersonalwater-savingtips,notglobalwaterscarcity.（参考答案：False）（解析：文章同时讨论个人行为和全球水资源危机，故错误。）2.In"TheGreatBarrierReef,"theauthorsuggeststhatcoralreefswillrecoverquicklyifpollutionstops.（参考答案：False）（解析：文章指出恢复需要长期努力，并非立即见效，故错误。）3.Therecyclingprocessturnsalltypesofwasteintovaluableresourceswithoutanywaste.（参考答案：False）（解析：部分回收物仍有残留废料，故错误。）4.Accordingtothedialogue,bothstudentsagreethatrecyclingisunnecessarybecausethegovernmentwillhandleit.（参考答案：False）（解析：Lily支持主动回收，Tom持保留态度，并非一致观点，故错误。）5.Thepassage"ElephantsinDanger"mentionsthativorytradeislegalinmostcountriesnow.（参考答案：False）（解析：文章强调国际禁令，故错误。）6.Thelettertothenewspapercriticizesthelocalgovernmentfornotcleaningparksregularly.（参考答案：False）（解析：信主要批评游客乱扔垃圾，未直接指责政府，故错误。）7.Theunitsuggeststhatwindfarmsarethemostsustainableenergysourcebecausetheyneverpollute.（参考答案：False）（解析：文章未绝对比较能源优劣，故错误。）8.Organicfarmingrequiresmorelandthanconventionalfarmingtoproducethesameamountoffood.（参考答案：True）（解析：课文提及有机农业效率较低，故正确。）9.Thespeechencouragesstudentstoignoreenvironmentalproblemsbecausetheyaretooyoung.（参考答案：False）（解析：演讲呼吁学生参与行动，故错误。）10.Therecyclingsymbolincludesapictureofatreetorepresentenvironmentalprotection.（参考答案：False）（解析：标志仅含箭头，无树木图案，故错误。）四、简答题（总共4题，每题4分，共16分）1.Explainwhy"reducingwaste"isconsideredthemostimportantstepinenvironmentalprotection.（参考答案：Reducingwasteminimizestheamountofpollutiongenerated.Itconservesnaturalresourceslikewaterandenergy,reduceslandfillburden,andlowersgreenhousegasemissions.Unlikerecycling,whichprocessesalready-usedmaterials,reductionpreventswastefromenteringthesysteminthefirstplace,makingitthemosteffectiveapproachtosustainability.）（解析：答案需涵盖资源节约、减负、减排三方面，逻辑清晰。）2.Describetwowaysthatindividualscanhelpprotectcoralreefsfromdamage.（参考答案：First,avoidusingsunscreenscontainingharmfulchemicalslikeoxybenzone,whichharmreefs.Second,supportpoliciesthatreduceoceanacidificationbycuttingcarbonemissions,asacidificationweakenscoralstructures.）（解析：需结合课文提到的化学污染和气候变化两个角度。）3.Whyisitimportanttoreuseproductsinsteadofthrowingthemaway?（参考答案：Reuseextendsproductlife,reducingtheneedfornewmanufacturing,whichsavesenergyandrawmaterials.Italsodecreaseslandfillwasteandpollutionfromproductionprocesses.Forexample,usingreusablebagsinsteadofplasticonespreventsmillionsofplasticbagsfromenteringtheenvironmenteachyear.）（解析：需说明经济、环保双重效益，并举例。）4.Whatdoestheunitteachusabouttherelationshipbetweenhumansandnature?（参考答案：Theunitshowsthathumansdependonnatureforresourcesbutoftenharmitthroughpollution,overexploitation,andclimatechange.Itemphasizesmutualresponsibility:protectingnatureisessentialforhumansurvival,andsustainablepracticescanpreserveecosystemsforfuturegenerations.）（解析：需体现人与自然相互依存又相互影响的辩证关系。）五、应用题（总共4题，每题6分，共24分）1.Supposeyoulivenearaparkwheremanypeoplelitter.Writeashortparagraph(50-70words)suggestingthreewaystoimprovethepark'scleanliness.（参考答案：First,installmoretrashbinswithclearlabels.Second,organizecommunityclean-updaystoraiseawareness.Third,postsignsremindingvisitorstodisposeofwasteproperly.Theseactionscanreducelitterandencourageresponsiblebehavior,makingtheparkmoreenjoyableforeveryone.）（解析：需包含具体措施、目的，语言得体。）2.Imagineyouareastudentintheunit'sdiscussiongroup.Yourpartnerthinksrecyclingistootime-consumingtobeworthit.Howwouldyoupersuadethem?（参考答案：Recyclingmayseemtedious,butevensmalleffortsaddup.Forexample,sortingoneextrabottleadayreduceswastesignificantly.Plus,itsavesenergycomparedtomakingnewproducts.Thinkofitasteamworkfortheplanet—weallbenefitfromcleanerairandwater.It’saboutmakingahabit,notahugesacrifice.）（解析：需用对比法、数据化说服，语气诚恳。）3.Designaoneposter(describeitscontentinwords)topromotewaterconservationatyourschool.Includeatleastthreetips.（参考答案：Title:"SaveWater,SaveOurFuture!"Background:Bluewavesandschoollogo.Content:1)Turnofftapswhilebrushingteeth.2)Fixleaksimmediately.3)Usewater-savingdeviceslikelow-flowshowerheads.Footer:"Eve