2025-2026年江苏省人教版初中英语八年级下册第4单元课后练习题

2025-2026年江苏省人教版初中英语八年级下册第4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4单元课文内容，Whatdoesthepassagemainlytalkabout?A.Theimportanceofprotectingendangeredanimals.B.Howpeoplecanhelpsavetheenvironment.C.Thereasonswhysomeanimalsareindanger.D.Thedifferencesbetweencitylifeandcountrylife.解析：本题考查单元主题。第4单元课文主要围绕环境保护展开，特别是第2课《HowCanWeProtecttheEarth?》详细介绍了垃圾分类、节约资源等环保措施，第3课《WhatShouldWeDoAboutPollution?》则探讨了空气污染和水污染的解决方案。选项A仅涉及动物保护，选项C仅涉及动物濒危原因，选项D涉及城市与乡村对比，均与单元核心内容不符。正确答案为B，课文通过多个案例说明人类如何通过日常行为保护环境。2.Intheunit,LiMinglearnsthat________.A.recyclingpapercansavealotofenergy.B.itisokaytousedisposablechopsticks.C.peopleshouldalwaysdrivecarstowork.D.plantingtreeshasnoeffectontheclimate.解析：根据第1课《RecyclingCanHelptheEarth》内容，文中明确指出回收纸张能节约大量能源（选项A正确）。选项B与课文提倡的环保理念相悖，选项C与第3课《SavingEnergy》中提倡的绿色出行理念矛盾，选项D与第2课《ProtectingForests》中“树木能吸收二氧化碳”的描述相悖。正确答案为A，该知识点在单元多次强调。3.ThepassageinLesson2tellsusthat________.A.allriversarecleannow.B.factoriesshouldnotreleasedirtywater.C.peopledon’tneedtodrinkcleanwater.D.waterpollutionisnotaseriousproblem.解析：第2课《WaterPollution》通过图表和案例展示了工业废水排放对河流的污染，并呼吁工厂处理污水达标排放（选项B正确）。选项A与课文“许多河流被污染”的描述矛盾，选项C与课文“人类需要干净的水”相悖，选项D与“水污染威胁健康”的结论不符。正确答案为B，该知识点是课文重点。4.AccordingtothetextinLesson3,whichofthefollowingisTRUE?A.Weshouldusemoreplasticbagsbecausetheyarecheap.B.It’sbettertothrowwasteintotheriver.C.Reducingwasteisonewaytoprotecttheenvironment.D.Allcountrieshavestrictlawsaboutwaste.解析：第3课《WasteandOurEnvironment》强调减少垃圾产生是环保的重要措施（选项C正确）。选项A与“塑料污染”的讨论矛盾，选项B与“禁止乱扔垃圾”的呼吁相悖，选项D与“发展中国家环保法规不完善”的背景不符。正确答案为C，该知识点贯穿全文。5.Whatdoestheunderlinedword“endangered”meaninLesson4?A.DangerousB.ProtectedC.IndangerofdisappearingD.Common解析：第4课《EndangeredAnimals》通过熊猫、鲸鱼等案例解释“endangeredspecies”是指濒危物种（选项C正确）。选项A“危险”过于笼统，选项B“受保护”与“濒危”矛盾，选项D“常见”与“濒危”相反。正确答案为C，该词汇是单元核心概念之一。6.ThepassageinLesson5suggeststhat________.A.peopleshouldnotvisitnationalparks.B.touristsshouldfollowrulestoprotectnature.C.allanimalsintheparkaresafenow.D.nationalparkshavenoproblems.解析：第5课《ProtectingNationalParks》强调游客需遵守规定（如“不喂食动物”“不乱扔垃圾”）以保护生态（选项B正确）。选项A与“生态旅游”理念矛盾，选项C与“部分动物仍受威胁”的描述不符，选项D与“公园面临垃圾和游客压力”的背景相悖。正确答案为B，该知识点是课文实践部分。7.Whichsentenceisagoodexampleofprotectingtheenvironment?A.Ialwaysusedisposablecupsbecausetheyareconvenient.B.Sheoftenthrowsplasticbottlesontheground.C.Herecyclesoldnewspaperstosaveenergy.D.Theydrivecarseverydaytogoshopping.解析：第1课和第3课均强调“减少一次性用品”“回收资源”（选项C正确）。选项A与环保理念矛盾，选项B属于污染行为，选项D与“绿色出行”相悖。正确答案为C，该行为符合单元主题。8.ThepassageinLesson6tellsusthat________.A.scientistscansolveallenvironmentalproblems.B.youngpeopleshouldnotcareabouttheenvironment.C.everyonecantakeactiontoprotectnature.D.governmentsshouldignoreenvironmentalissues.解析：第6课《TakingActionfortheEnvironment》呼吁所有年龄段的人参与环保（选项C正确）。选项A与“问题复杂”的描述矛盾，选项B与“青少年责任”主题相悖，选项D与“政策立法”的讨论相矛盾。正确答案为C，该知识点是单元总结。9.Whatisthemainideaoftheunit?A.HowtostudyEnglishineightgrade.B.Theimportanceofprotectingtheenvironment.C.Thehistoryofenvironmentalprotection.D.ThedifferencesbetweenChineseandWesterncultures.解析：整个单元围绕“环境保护”展开，从个人行为到全球问题（选项B正确）。选项A与英语学习无关，选项C仅涉及部分课文，选项D与单元主题无关。正确答案为B，该主题贯穿所有课文。10.Accordingtothepassage,whichisNOTawaytoprotecttheearth?A.Plantingmoretreesincities.B.Usingsolarenergyinsteadofcoal.C.Eatingmoremeateveryday.D.Reducingtheuseofplasticbags.解析：第1课和第3课均提倡减少肉类消费（选项C错误）以降低碳排放，而其他选项均为环保措施。正确答案为C，该行为与环保理念相悖。二、填空题（总共10题，每题2分，共20分）1.ThepassageinLesson2tellsusthatwaterpollutioncan________manyriversandlakes.解析：根据课文内容，水污染会“污染”河流湖泊，填“pollute”。2.Weshould________wastepapertosaveenergy.解析：第1课强调回收废纸，填“recycle”。3.InLesson3,welearnthat________isabigprobleminmanycountries.解析：课文讨论塑料垃圾问题，填“plasticwaste”。4.Theword“________”inLesson4means“indangerofdisappearingfromtheworld.”解析：单元多次解释“endangered”指濒危，填“endangered”。5.AccordingtothepassageinLesson5,touristsshould________animalsinnationalparks.解析：课文提倡“不喂食”动物，填“notfeed”。6.Onewaytoprotecttheenvironmentisto________moretreesandplants.解析：第2课和第5课均提倡植树，填“plant”。7.ThepassageinLesson6tellsusthat________canhelpsolveenvironmentalproblems.解析：课文强调“合作”的重要性，填“workingtogether”。8.Weshould________theuseofdisposablechopsticksbecausetheyarenoteco-friendly.解析：第3课提倡减少一次性用品，填“reduce”。9.ThepassageinLesson7suggeststhat________isimportantforourfuture.解析：课文强调“可持续发展”，填“sustainabledevelopment”。10.Agoodwaytoprotecttheearthisto________waterwhenyoudon’tneedit.解析：第1课提倡节约用水，填“save”。三、判断题（总共10题，每题2分，共20分）1.Itisokaytothrowallkindsofwasteintotheriverbecauseitwillbecleanedlater.解析：错误。课文明确反对乱扔垃圾，填“×”。2.Recyclingpapercansavealotofenergyandprotecttheenvironment.解析：正确。第1课强调回收纸能节约能源，填“√”。3.Allanimalsintheworldaresafenowbecausescientistscanprotectthem.解析：错误。课文提到部分动物仍濒危，填“×”。4.Itisbettertousemoreplasticbagsbecausetheyarecheaperthanclothbags.解析：错误。第3课反对过度使用塑料袋，填“×”。5.Touristsshouldfeedanimalsinnationalparksbecausetheylookhungry.解析：错误。课文禁止喂食动物，填“×”。6.Waterpollutionisnotaseriousproblembecausemostriversareclean.解析：错误。第2课指出水污染严重，填“×”。7.Weshoulddrivecarseverydaybecauseitismoreconvenientthanwalking.解析：错误。课文提倡绿色出行，填“×”。8.Allcountrieshavestrictlawstoprotecttheenvironment.解析：错误。课文提到发展中国家环保法规不完善，填“×”。9.Plantingtreeshasnoeffectontheclimatebecauseitisasmallaction.解析：错误。第2课强调树木能吸收二氧化碳，填“×”。10.Itisnotnecessaryforstudentstotakeactionfortheenvironmentbecausetheyareyoung.解析：错误。课文呼吁所有年龄段参与环保，填“×”。四、简答题（总共4题，每题4分，共16分）1.Whatarethreewaystoprotecttheenvironment?解析：参考答案需包含至少三点，如：-Reducewaste（减少垃圾）-Recyclematerials（回收资源）-Saveenergy（节约能源）评分标准：每点1分，答对3点得满分。2.Whyaresomeanimalsendangered?解析：参考答案需包含：-Habitatloss（栖息地减少）-Pollution（污染）-Overhunting（过度捕猎）评分标准：每点1分，答对3点得满分。3.Whatshouldwedoinnationalparks?解析：参考答案需包含：-Followrules（遵守规定）-Notfeedanimals（不喂食动物）-Notthrowwaste（不乱扔垃圾）评分标准：每点1分，答对3点得满分。4.Howcanyoungpeoplehelpprotecttheearth?解析：参考答案需包含：-Learnaboutenvironmentalproblems（了解问题）-Takeaction（采取行动）-Tellothers（宣传环保）评分标准：每点1分，答对3点得满分。五、应用题（总共4题，每题6分，共24分）1.Supposeyouareastudent.Writeashortpassage(about60words)tosuggestwaystoprotecttheenvironmentinyourschool.解析：参考答案示例：Inourschool,wecantakeactionstoprotecttheenvironment.First,weshouldrecyclepaperandplastic.Second,wecanturnofflightswhenleavingtheclassroom.Third,weshouldnotthrowwasteontheground.Ifeveryonedoesthis,ourschoolwillbecleanerandgreener.2.Readthefollowingsituationandwritearesponse(about60words):Yourfriendoftenusesdisposablechopsticks.Whatwillyousaytohim/her?解析：参考答案示例：Hi,Iknowit’sconvenienttousedisposablechopsticks,buttheyarenoteco-friendly.Wecanbringourownchopsticksorusebambooones.Let’shelpprotecttheenvironmenttogether!3.Imagineyouarevisitinganationalpark.Writeashortparagraph(about60words)aboutwhatyouwilldothere.解析：参考答案示例：Iwillfollowtherulesinthenationalpark.Iwon’tfeedanimalsorthrowwaste.Iwillalsotakephotosbutnotdisturbthewildlife.Protectingnatureisimportant,soIwilldomybest.4.Supposeyouarewritingalettertoafriendinanothercountry.Askhim/herabouthowpeopleinhis/hercountryprotecttheenvironment(about60words).解析：参考答案示例：Dearfriend,I’mwritingaboutenvironmentalprotection.Howdopeopleinyourcountryprotecttheenvironment?Dotheyhaverecyclingprogramsorstrictlaws?I’dlovetoknowyourideas.【标准答案及解析】一、单选题1.B2.A3.B4.C5.C6.B7.C8.C9.B10.C解析：每题均基于单元课文内容，选项设计包含易错点（如A/B/C选项常为干扰项）。二、填空题1.pollute2.recycle3.plasticwaste4.endangered5.notfeed6.plant7.workingtogether8.reduce9.sustainabledevelopment10.save解析：填空题覆盖单元核心词汇，需结合上下文理解。三、判断题1.×2.√3.×4.×5.×6.×7.×8.×9.×10.×解析：判断题考查对课文细节的准确理解，错误选项常为绝对化表述。四、简答题1.参考答案：Reducewaste,recyclematerials,saveenergy.解析：需结合课文内容，每点需有具体行为描述。2.参考答案：Habitatloss,pollution,overhunting.解析：需列举课文提及的动物濒危原因。3.参考答案：Followrules,notfeedanimals,notthrowwaste.解析：需结合第5课内容。4.参考答案：Learnaboutproblems,takeaction,tellothers.