2025-2026年江苏省苏教版初中三年级英语第七单元课后练习题

2025-2026年江苏省苏教版初中三年级英语第七单元课后练习题一、单选题（总共10题，每题2分，共20分）1.根据苏教版初中三年级英语第七单元课文内容，Whatisthemaintopicofthepassage"ProtectingtheEnvironment"?A.Thehistoryofenvironmentalpollution.B.Theimportanceofrecyclingwaste.C.Thecausesofclimatechange.D.Thebenefitsofusingpublictransportation.解析：本题考查单元主题把握。第七单元核心话题为环境保护，课文中通过具体案例（如垃圾分类、节约用水）强调环保行动的重要性。选项A、C、D虽与环保相关，但非单元主线。选项B直接对应课文重点段落（"Recyclingisoneoftheeasiestwaystohelptheplanet"），故正确。错误选项干扰点：A（历史性内容未涉及）、C（气候变暖为背景，非核心）、D（交通方式为部分解决方案，非整体主题）。2.Intheunit"ProtectingtheEnvironment",whichsentencebestdescribestheauthor'sattitudetowardplasticwaste?A."Plasticisusefulandshouldbeusedmore."B."Plasticwasteisnotaseriousproblem."C."Weshouldreduceplasticusetoprotectnature."D."Plasticcanbeeasilydecomposedinlandfills."解析：本题考查情感态度分析。课文中明确指出塑料污染危害（"Plastictakeshundredsofyearstobreakdown"），并建议减少使用。选项A与课文立场相反；B、D为错误信息；C与课文观点一致，故正确。干扰项设计：A利用塑料的实用性误导，D利用"分解"概念混淆（课文强调难分解）。3.根据课文对话内容，WhydoesLilysuggestusingreusablebags?A.Tosavemoneyinthelongrun.B.Toreduceplasticwaste.C.Tomakeshoppingmoreconvenient.D.Tosupportlocalbusinesses.解析：本题考查细节理解。对话中Lily明确提到"Reusablebagshelpkeepplasticoutoftheocean"，直接点明环保目的。选项A、C、D为无关信息或次要作用。干扰项设计：A利用经济因素误导，D利用"支持本地"概念混淆。4.Thepassage"ProtectingtheEnvironment"includesachartshowingwastereductionmethods.Whichmethodismostemphasized?A.Burningwastetogenerateenergy.B.Compostingorganicwaste.C.Recyclingpaperandplastic.D.Throwingallwasteintolandfills.解析：本题考查图表信息整合。课文中图表重点展示可回收物分类（纸、塑料、金属），并配以"Recyclingsavesresources"说明。选项A（焚烧污染）、D（填埋不可取）为课文反对做法；B（堆肥）虽提及但非核心；C与图表及课文结论完全一致，故正确。干扰项设计：A利用"能源"概念误导，D利用"简单处理"心理暗示。5.Whatisthebesttitleforthearticle"WhyTreesMatter"?A."TheBenefitsofParksforExercise."B."HowTreesHelptheEnvironment."C."TheHistoryofArborDay."D."TheCostofPlantingNewTrees."解析：本题考查主旨概括。该文段落落围绕树木生态作用（净化空气、防风固沙），选项B准确概括。A（公园锻炼）、C（植树节历史）、D（种植成本）均为无关内容。干扰项设计：A利用"运动"概念误导，D利用"成本"心理暗示。6.Intheunit,whichsentenceshowsacontrastbetweenpastandpresentenvironmentalattitudes?A."Peoplealwaysthrowtrashwherevertheywant."B."Manycitiesnowhaverecyclingprograms."C."Childrenlearnaboutnatureprotectioninschool."D."Oldcarspollutemorethannewones."解析：本题考查对比理解。课文中对比过去"随意丢弃垃圾"与现在"垃圾分类回收"（"Before,peopledidn'tcareaboutlittering.Now,mostcitieshaverecyclingbins"）。选项A、C、D为单一描述或因果关系，无对比结构。B准确反映时代变化，故正确。干扰项设计：D利用"新旧对比"概念混淆（汽车污染非环境态度对比）。7.Thepassage"WaterConservationTips"includesatipabouttakingshortershowers.Whyisthisadvicegiven?A.Tosavemoneyonwaterbills.B.Toreducewaterpollution.C.Toconservewaterresources.D.Toimprovepersonalhygiene.解析：本题考查因果推理。文中明确说明"Shortershowersuselesswater"，直接点明节水目的。选项A、D为次要影响；B（减少污染）未直接关联；C与原文表述完全一致，故正确。干扰项设计：A利用经济因素误导，D利用"个人卫生"心理暗示。8.Whichsentencefromtheunitbestdescribesaproblemcausedbydeforestation?A."Forestsprovidehabitatformanyanimals."B."Treescanabsorbcarbondioxide."C."Deforestationleadstosoilerosion."D."Moretreesmeanmoreoxygen."解析：本题考查问题识别。课文中段落明确指出"Withouttrees,soilwashesawayeasily"，直接说明水土流失问题。选项A、B、D为森林作用描述，非问题。C准确反映课文内容，故正确。干扰项设计：A利用"动物栖息地"概念混淆（问题非保护对象）。9.Theunitincludesalettertotheeditoraboutplasticbags.Whatistheauthor'smainpurpose?A.Toadvertiseanewtypeofplasticbag.B.Topersuadereaderstostopusingplasticbags.C.Toexplainhowtomakeplasticbags.D.Tocelebratetheinventionofplasticbags.解析：本题考查写作目的分析。信中通过数据（"Eachyear,millionsofplasticbagsendupintheocean"）和呼吁（"Let'susereusablebagsinstead"）推动改变，属于典型劝说文体。选项A、C、D与信件立场相反。B准确反映课文内容，故正确。干扰项设计：A利用"广告"概念混淆，D利用"庆祝"情感暗示。10.Intheunit"ProtectingtheEnvironment",whichskillismostemphasizedforstudents?A.Writingscientificreports.B.Conductingexperiments.C.Takingactionindailylife.D.Memorizingenvironmentalfacts.解析：本题考查能力培养重点。课文中通过案例（"Youcanstartbyturningoffthetapwhenbrushingyourteeth"）强调实践行动。选项A、B、D为学术能力，非单元重点。C与课文实践导向完全一致，故正确。干扰项设计：B利用"实验"概念混淆（课文强调观察而非实验）。二、填空题（总共10题，每题2分，共20分）1.Thepassage"WhyTreesMatter"mentionsthattreescan______airpollutionbyabsorbingharmfulgases.2.Intheunit,achartshowsthatrecyclingpapercan______70%oftheenergyneededtomakenewpaper.3.Thearticle"WaterConservationTips"suggeststurningoffthetapwhile______tosavewater.4.Accordingtothelettertotheeditor,plasticbagstake______yearstodecomposeintheocean.5.Theunitincludesastoryaboutastudentwhostarteda______toreducewasteinschool.6.Thepassage"ProtectingtheEnvironment"explainsthatplasticwasteharmsmarine______byentanglingseaanimals.7.Akeytipintheunitistouse______insteadofdisposablecupstominimizewaste.8.Theunitdiscusseshowdeforestationcanleadto______astreespreventsoilfromwashingaway.9.Thechartin"WasteReductionMethods"showsthatglassrecyclingcan______95%oftherawmaterialsneeded.10.Theunitencouragesstudentstowritealettertotheirlocalgovernmentabouttheneedto______morerecyclingfacilities.解析：11."purify"（课文："Treespurifytheair"）12."save"（图表："Recyclingpapersaves70%energy"）13."brushingteeth"（课文："Turnoffthetapwhilebrushingyourteeth"）14."hundreds"（课文："Plasticbagstakehundredsofyearstodecompose"）15."campaign"（故事："Lilystartedacampaigntoreducewaste"）16."life"（课文："Plasticwasteharmsmarinelife"）17."reusablebottles"（课文："Usereusablebottlesinsteadofdisposableones"）18."soilerosion"（课文："Deforestationleadstosoilerosion"）19."reduce"（图表："Glassrecyclingreduces95%rawmaterials"）20."build"（信件："Writetoyourlocalgovernmenttobuildmorerecyclingfacilities"）三、判断题（总共10题，每题2分，共20分）1.Thepassage"ProtectingtheEnvironment"statesthatalltypesofplasticcanbeeasilyrecycled.2.Accordingtotheunit,usingpublictransportationistheonlywaytoreducecarbonemissions.3.Thearticle"WhyTreesMatter"mentionsthatforestscover30%oftheEarth'slandarea.4.Theunitsuggeststhatdeforestationmainlyaffectsanimalsbutnotplants.5.Thelettertotheeditorrecommendsthrowingplasticbagsinrecyclingbins.6.Thepassage"WaterConservationTips"saysthattakinga5-minuteshowerusesthesameamountofwaterasa10-minuteshower.7.Theunitincludesachartshowingthatrecyclingmetalsaves90%oftheenergyneeded.8.Thearticle"WhyTreesMatter"explainsthattreescangrowbackquicklyafterbeingcutdown.9.Theunitencouragesstudentstowriteletterstofriendsaboutenvironmentalproblems.10.Thepassage"ProtectingtheEnvironment"mentionsthatindustrialwasteisthebiggestsourceofwaterpollution.解析：11.×（课文："Notallplasticsareeasytorecycle"）12.×（课文："Walking,cycling,andusingpublictransportallhelp"）13.√（图表数据："Forestscover30%oftheEarth"）14.×（课文："Deforestationaffectsplantstoo"）15.√（信件："Putplasticbagsinrecyclingbins"）16.×（课文："A5-minuteshoweruseshalfthewaterofa10-minuteone"）17.√（图表数据："Recyclingmetalsaves90%energy"）18.×（课文："Treestakeyearstogrowback"）19.×（课文："Writetolocalgovernment,notfriends"）20.×（课文："Agriculturalwasteisamajorsource"）四、简答题（总共4题，每题4分，共16分）1.Describetwowaystheunitsuggestsstudentscanhelpprotecttheenvironmentindailylife.2.Explainwhyrecyclingpaperisimportantaccordingtothepassage"ProtectingtheEnvironment".3.Whatisthemainmessageofthearticle"WhyTreesMatter"?4.Accordingtotheunit,howdoesplasticwasteaffecttheocean?解析：5.参考答案：-使用可重复使用的购物袋（如布袋），减少塑料袋使用；-节约用水，如刷牙时关闭水龙头。解析：考查实践能力。答案需包含具体行为（可重复使用物品、节约资源），与课文"日常环保行动"主题一致。评分标准：每点2分，共4分。6.参考答案：-节约能源：制造再生纸比原木消耗更少能源；-保护森林：减少对原木的需求，保护树木生态功能。解析：考查细节理解。答案需结合课文"节约能源""保护森林"两个核心论点。评分标准：每点2分，共4分。7.参考答案：-树木提供氧气，维持生态平衡；-树木净化空气，吸收有害物质。解析：考查主旨概括。答案需包含"氧气""生态平衡""净化空气"三个核心要素。评分标准：每点1分，共4分。8.参考答案：-堵塞海洋生物呼吸通道（如海龟误食塑料）；-杀死海洋生物（如塑料缠绕导致窒息）。解析：考查因果分析。答案需包含"呼吸受阻""死亡"两个直接危害。评分标准：每点2分，共4分。五、应用题（总共4题，每题6分，共24分）1.SupposeyouareastudentinJiangsuProvince.Writeashortparagraph(50words)toyourschoolprincipalsuggestingonewaytoreduceplasticwasteinschool.2.Createasimplechart(3rows×2columns)showingthreetypesofwasteandtheirbestdisposalmethodsaccordingtotheunit.3.Imagineyouarewritingalettertoalocalnewspaperabouttheimportanceofrecycling.Writethreekeypointstoincludeinyourletter(40words).4.Designa1-weekactionplan(60words)tohelpyourfamilysavewaterathome.解析：5.参考答案：DearPrincipal,Isuggestinstallingwaterbottlerefillstationsinschooltoreduceplasticbottlewaste.Manystudentsbringdisposablebottles,andrefillstationswouldencourageusingreusableones.Thissmallchangecanmakeabigdifferencefortheenvironment.Thankyou.解析：考查写作能力。答案需包含建议（安装饮水机）、理由（减少塑料）、积极影响。评分标准：建议2分，理由2分，语言表达2分。6.参考答案：|WasteType|DisposalMethod||------------------|----------------------||Paper|Recycling||Plastic|Recycling||Glass|Recycling|解析：考查图表设计。答案需包含三种垃圾（纸、塑料、玻璃）及正确处理方式（回收）。评分标准：内容准确3分，格式规范3分。7.参考答案：-Recyclingsavesenergyandresources.-Itreducespollutionfromlandfills.-Ithelpsprotectnaturalhabitats.解析：考查观点提炼。答案需包含"节约能源""减少污染""保护生态"三个核心论点。评分标准：每点2分，共6分。8.参考答案：-Morning:Turnoffthetapwhilebrushingteeth.-Afternoon:Takeshortershowers.-Evening:Useadishpanforwashingdishesinsteadofrunningwater.-Weekend:Fixdrippingtapstosavewater.解析：考查