2025-2026年四川省部编版八年级英语上册第9单元课后练习题

2025-2026年四川省部编版八年级英语上册第9单元课后练习题一、单选题（总共10题，每题2分，共20分）1.根据第9单元课文内容，Whatisthemainpurposeofthepassage"ProtectingtheEnvironment"?A.Toadvertiseanewenvironmentalproduct.B.Todescribethebeautyofnature.C.Topersuadepeopletotakeactiontoprotecttheenvironment.D.Tointroducefamousenvironmentalscientists.（解析：本题考查单元主题理解。课文明确围绕环保行动展开，如"Everyoneshouldplanttrees"和"Reduceplasticuse"。选项A、B、D与课文主旨无关，选项C准确概括了文章的劝诫性质，故选C。）2.Intheunit9readingpassage,whydoestheauthormentiontheexampleofthepollutedriverinChina?A.ToshowhishatredforChinesepeople.B.Toprovethatenvironmentalproblemsarenotserious.C.Toillustratehowpollutionaffectsdailylife.D.TocompareChinawithothercountries.（解析：文中具体描述了河流变黑变臭影响居民健康，如"Childrencannotswimintheriveranymore"。选项A、B、D均与文本信息矛盾，选项C准确反映了作者通过案例说明污染危害的写作意图，故选C。）3.根据第9单元语法部分，选择正确的时态填空：TheEarth______(be)gettingwarmerbecauseofhumanactivities.A.isB.wasC.willbeD.hasbeen（解析：考查现在进行时表状态变化。课文强调全球变暖是当前持续发生的事实，用现在进行时最恰当。"isgetting"符合"主语+be+现在分词"结构，故选A。）4.根据课文对话内容，WhydoesLilysuggestusingpublictransport?A.Becauseitischeaperthandriving.B.Becauseitismorecomfortablethanwalking.C.Becauseitcanreduceairpollution.D.Becauseitsavestimeintrafficjams.（解析：对话中Lily提到"Manycarsmaketoomuchsmoke"，并建议"Morepeopleshouldtakebuses"。选项C直接对应环保主题，其他选项虽为交通常识但非课文重点，故选C。）5.根据第9单元写作指导，Whichsentenceisthebesttopicsentenceforanessayaboutprotectinganimals?A.Manyanimalsareindanger.B.Peopleshouldnoteatendangeredanimals.C.Protectinganimalsisimportant.D.Someanimalsareverycute.（解析：写作指导强调明确中心思想。选项C概括性强且符合环保主题，其他选项仅陈述部分现象或观点，故选C。）6.根据课文活动1，Whatdoesthechartshowaboutplasticwaste?A.Theamountofplasticwasteincreaseseveryyear.B.Mostplasticwastecomesfromschools.C.Plasticbagsarethemostcommonwaste.D.Familiesthrowawaymoreplasticthancompanies.（解析：图表显示2024年塑料垃圾总量比2023年增长15%，符合"risingtrend"的描述。其他选项数据未在文中明确，故选A。）7.根据第9单元词汇部分，Choosethebestwordtofilltheblank:"Weshould______papertosavetrees."A.useB.useupC.throwawayD.recycle（解析：单元词汇强调环保行为动词。"Recycle"与"savetrees"形成因果逻辑，符合课文"Reduce,Reuse,Recycle"原则，故选D。）8.根据课文故事，Whydoestheboyinthestorydecidetocleanthepark?A.Becausehisteacheraskedhimto.B.Becausehewantstomaketheenvironmentbetter.C.Becausehisfriendsaredoingit.D.Becausetheparkishisproperty.（解析：故事中男孩说"Iwanttomakeourcityclean"，体现个人环保意识。其他选项如C、D在文中未提及，故选B。）9.根据第9单元语法练习，选择正确的比较级：Whichismoreserious,airpollutionorwaterpollution?A.Airpollutionismoreseriousthanwaterpollution.B.Waterpollutionismoreseriousthanairpollution.C.Airpollutionisasseriousaswaterpollution.D.Waterpollutionislessseriousthanairpollution.（解析：语法练习强调对比结构。文中提到"Airpollutionaffectsourhealthquickly"，暗示其危害性更强，故选A。）10.根据课文活动2，Whatisthepurposeofthegroupdiscussion?A.TodecidehowtocelebrateChristmas.B.Toplanaschoolparty.C.Todiscusswaystoprotecttheenvironment.D.Towriteabookreport.（解析：活动2标题为"Let'sdiscussenvironmentalproblems"，讨论环节围绕"shouldweusereusablebags?"等环保议题展开，故选C。）二、填空题（总共10题，每题2分，共20分）1.Thepassagetellsusthatifwe______(notprotect)theenvironment,manyanimalswill______(disappear)fromtheearth.（解析：考查一般现在时被动语态。第一空填don'tprotect，第二空填willdisappear，构成虚拟条件句。）2.Accordingtothechart,thenumberofplasticbottles______(increase)from2023to2024.（解析：时间状语"from2023to2024"提示用现在完成时，填hasincreased。）3.Weshould______(turnoff)thelightswhenweleavetheclassroomtosaveenergy.（解析：考查祈使句动词原形，填Turnoff，注意首字母大写。）4.Thegirlinthestory______(try)tosavethebirdsbybuildingnestsforthem.（解析：一般过去时，填tried，主语是第三人称单数。）5.Pollutionmakesitdifficultforfish______(breathe)indirtywater.（解析：考查动词不定式，填tobreathe，逻辑主语是fish。）6.Manypeople______(join)theclean-upactivitylastweekend.（解析：一般过去时，填joined，主语是manypeople（复数）。）7.Theteacheraskedus______(notwaste)timeonplayinggames.（解析：考查动词不定式否定形式，填nottowaste。）8.Ifeveryone______(do)theirpart,theworldwillbemuchbetter.（解析：虚拟条件句主语是everyone（第三人称单数），填does。）9.Thereportshowsthatpaperwaste______(reduce)by20%thisyear.（解析：时间状语"thisyear"提示现在完成时，填hasreduced。）10.Weneedtofindways______(solve)theproblemofplasticpollution.（解析：考查动词不定式，填tosolve，逻辑主语是we。）三、判断题（总共10题，每题2分，共20分）1.Thepassage"ProtectingtheEnvironment"mainlydescribeshowtorecyclewaste.(×)（解析：原文重点在于呼吁行动而非具体方法，故错误。）2.Accordingtothechart,theamountofplasticwastein2024was500kg.(×)（解析：文中未给出具体数值，图表仅显示增长趋势，故错误。）3.Theboyinthestorycleanedtheparkbecausehisparentsforcedhimto.(×)（解析：文中未提及家长强迫，而是男孩自愿行动，故错误。）4.Usingreusablebagsisagoodwaytoreduceplasticpollution.(√)（解析：课文对话和活动均支持此观点，故正确。）5.Theauthorofthepassageisanenvironmentalexpert.(×)（解析：文中未说明作者身份，属于无中生有，故错误。）6.ThegroupdiscussioninActivity2isaboutChristmascelebration.(×)（解析：活动标题明确为环保讨论，故错误。）7.Turningofflightsisnotimportantforsavingenergy.(×)（解析：课文强调节约能源行为，故错误。）8.ThepollutedriverinChinaaffectspeople'shealth.(√)（解析：文中明确描述了健康危害，故正确。）9.Thepassagesuggeststhatairpollutionislessseriousthanwaterpollution.(×)（解析：文中暗示空气污染危害更快，故错误。）10.Weshouldthrowawayplasticbottlesafterusingthem.(×)（解析：课文提倡回收利用，故错误。）四、简答题（总共4题，每题4分，共16分）1.根据第9单元课文内容，列举三种保护环境的具体行动。（参考答案：①Reducewastebyusinglessplastic;②Reusethingslikebottlesandbags;③Recyclepaper,metal,andglass.解析：需结合课文三个R原则和具体例子，每点1分，共3分；逻辑清晰1分。）2.根据第9单元语法部分，解释为什么在虚拟条件句中用"would"比用"will"更常见。（参考答案：Would表示假设语气更委婉，常用于正式写作和口语中；will更直接表达意愿。解析：需结合语法讲解，逻辑清晰1分，原因准确2分。）3.根据课文活动1的图表，分析塑料垃圾增加的主要原因。（参考答案：①Peopleusemoredisposableproducts;②Recyclingsystemsarenotgoodenough;③Fewpeopleknowhowtoreduceplasticuse.解析：需结合图表趋势和环保知识，每点1分，共3分；逻辑1分。）4.根据第9单元写作指导，说明写环保主题作文时需要注意的三个要点。（参考答案：①Stateclearlytheproblem(e.g.,plasticpollution);②Givespecificreasons(e.g.,harmshealth);③Proposepracticalsolutions(e.g.,usereusablebags).解析：需结合写作技巧，每点1分，共3分；结构完整1分。）五、应用题（总共4题，每题6分，共24分）1.阅读以下环保倡议书片段，回答问题："Dearfriends,Everyyear,millionsoftreesarecutdowntomakepaper.Thiscausesmanyproblems.First,animalslosetheirhomes.Second,theairbecomesdirty.Wemustactnow!Let'susebothsidesofpaperandrecycleoldpaper."(1)Whatisthemainproblemmentionedinthepassage?(2)Whatsuggestiondoestheauthorgivetosavepaper?（参考答案：①Themainproblemiscuttingdowntoomanytreesforpaper.(3分)②Suggestions:usebothsidesofpaperandrecycleoldpaper.(3分)解析：需准确概括段落主旨和具体建议，每点3分。）2.根据第9单元语法规则，将以下句子改写为一般现在时被动语态：Peoplearebuildinganewparkinourcommunity.（参考答案：Anewparkisbeingbuiltinourcommunity.解析：主语变名词，be动词变is，动词原形加ing，时态保持一般现在时，正确改写得6分。）3.设计一个环保主题的班级海报，要求包含标题、图片和三条行动建议。（参考答案：标题："SaveOurPlanet"；图片：地球被污染的示意图；建议：①Turnofflightswhenleavingrooms;②Walkorbikeinsteadofdriving;③Planttreesinschool.解析：标题1分，图片1分，建议每条1分，共6分。）4.根据课文活动2的讨论内容，假设你是李明，写一段话表达你对使用环保袋的看法（50词左右）。（参考答案：Ithinkusingreusablebagsisveryimportant.Plasticbagsharmtheenvironment.Weshouldbringourownbagswhenshopping.It'sasmallstepbuthelpsalot.解析：观点明确2分，理由充分2分，语言表达2分。）【标准答案及解析】一、单选题1.C2.C3.A4.C5.C6.A7.D8.B9.A10.C解析：每题均需结合单元具体内容分析，注意区分主旨、细节、语法点等不同考查方向。二、填空题1.don'tprotect,willdisappear2.hasincreased3.Turnoff4.tried5.tobreathe6.joined7.nottowaste8.does9.hasreduced10.tosolve解析：涵盖时态、语态、非谓语动词等语法重点，需对照单元练习掌握。三、判断题1.×2.×3.×4.√5.×6.×7.×8.√9.×10.×解析：考查对文本细节和常识的准确判断，注意区分事实与观点。四、简答题1.参考答案：①Reducewastebyusinglessplastic;②Reusethingslikebottlesandbags;③Recyclepaper,metal,andglass.解析：需结合课文三个R原则和具体例子，每点1分，逻辑清晰1分。2.参考答案：Would表示假设语气更委婉，常用于正式写作和口语中；will更直接表达意愿。解析：需结合语法讲解，逻辑清晰1分，原因准确2分。3.参考答案：①Peopleusemoredisposableproducts;②Recyclingsystemsarenotgoodenough;③Fewpeoplekno