2026年广东省部编版初中英语下册第8单元同步练习题

2026年广东省部编版初中英语下册第8单元同步练习题一、单项选择题（总共10题，每题2分，共20分）1.根据第8单元课文内容，Whatisthemainideaofthepassage"ProtectingtheEnvironment"?Thepassagemainlydiscusses______.A.Theimportanceofrecyclingwasteandhowtodoiteffectively.B.Thecausesofairpollutionanditseffectsonhumanhealth.C.Thebenefitsofusingpublictransportationinsteadofcars.D.Thehistoryofenvironmentalmovementsaroundtheworld.解析：本题考查单元主题“环境保护”。根据第8单元课文内容，文章重点围绕垃圾分类回收的重要性及其具体方法展开，如课文提到"Recyclinghelpsreducelandfillwasteandconservenaturalresources."等句。选项A准确概括了文章核心内容，B、C、D虽与环保相关，但非文章主旨。2.Intheunit"ProtectingtheEnvironment",LiMinglearnsthatusingreusablebagsinsteadofplasticbagscanhelp______.A.reducethenumberoftreescutdownforpaperproduction.B.decreasetheamountofwastethatendsupinlandfills.C.increasethecostofshoppingbecauseplasticbagsarecheaper.D.improveairqualitybyreducingfactoryemissions.解析：根据课文"Plasticbagstakehundredsofyearstodecomposeandpollutethesoilandwater."及课后练习提示，使用可重复使用的购物袋直接减少了塑料垃圾的产生，对应选项B。A错误，塑料袋与树木无关；C错误，环保行为通常短期成本较高；D错误，与空气污染无直接联系。3.Thepassage"ProtectingtheEnvironment"mentionsthat"Manypeoplebelieveindividualactionscanmakeadifference."Whichsentencefromthetextbestsupportsthisidea?A."Governmentsshouldbanallsingle-useplasticsimmediately."B."Ifeveryonerecycles,theplanetwillbesaved."C."Smallstepslikeusingareusablebottlecanhelp."D."Onlylargecompaniescanreallychangetheenvironment."解析：单元课文强调个人责任，如"Evensmallactions,liketurningofflightswhennotinuse,addup."对应选项C。A是政府层面的措施；B过于绝对；D与课文观点相反。4.Accordingtotheunit,whatisamajorproblemwithtraditionallightbulbs?A.Theyaretooexpensivetobuyinitially.B.Theyproducetoomuchheatandwasteenergy.C.Theyaredifficulttoinstallinmosthomes.D.Theycontainmaterialsthatareharmfultotheenvironment.解析：课文对比传统灯泡与节能灯泡时指出，传统灯泡效率低、发热量大，如"Oldbulbswasteelectricityandcreateunnecessaryheat."，对应选项B。A、C、D均非课文重点。5.Theunitsuggeststhatstudentscanparticipateinenvironmentalprotectionby______.A.writingletterstofactoriesaskingthemtostoppolluting.B.plantingtreesintheirneighborhoods.C.buyingmoreelectronicdevicestoreducepaperuse.D.avoidingalloutdooractivitiestosaveenergy.解析：课文活动建议学生参与植树活动，如"Joinatree-plantingdayinyourcommunitytohelpabsorbcarbondioxide."，对应选项B。A过于理想化；C与环保背道而驰；D极端不现实。6.Whatdoestheunitteachusaboutwaterconservation?A.Itisonlyimportantindrought-proneareas.B.Itinvolvesturningoffthetapwhilebrushingteeth.C.Itrequiresbuyingexpensivewaterfiltersforeveryhome.D.ItisunnecessarybecausewaterisabundantonEarth.解析：课文提到节水小技巧，如"Savingwatermeansturningoffthetapwhenyoudon’tneedit,likewhilewashingyourface."，对应选项B。A错误，节水全球皆需；C错误，节水不依赖昂贵设备；D错误，水资源有限。7.Thepassage"ProtectingtheEnvironment"mentionsthatsomepeoplethinktechnologycansolveenvironmentalproblems.Whichexamplesupportsthisview?A.Usingsolarpanelstogeneratecleanenergy.B.Drivingmorecarstoreducepublictransportationdemand.C.Burningwastetoproduceelectricity.D.Encouragingpeopletowalkinsteadofusingbikes.解析：课文讨论科技环保方案，如"Newtechnologieslikesolarpanelshelpreducerelianceonfossilfuels."，对应选项A。B、C、D均与科技解决环保问题无关。8.Whatisthebestwaytodescribethetoneofthepassage"ProtectingtheEnvironment"?A.Angryanddemanding.B.Optimisticandencouraging.C.Sadandhopeless.D.Indifferentandfactual.解析：课文通过列举环保措施传递积极态度，如"Everysmalleffortcounts!"，体现鼓励语气，对应选项B。A、C、D均与课文基调不符。9.TheunitincludesareadingpassageaboutastudentnamedWangWei.WhatdoesWangWeidotohelptheenvironment?A.Hestartsacompanytoproduceplasticbags.B.Heorganizesaschoolcampaigntoreducepaperwaste.C.Hestopseatingmeattosavewater.D.Hetravelstheworldtoprotestpollution.解析：课文案例中，王伟组织校园减纸活动，如"Hisideawastoencourageeveryonetousebothsidesofthepaper."，对应选项B。A、C、D与案例不符。10.Whatisthemainpurposeoftheunit"ProtectingtheEnvironment"?A.Topersuadestudentstobuymoreelectronicdevices.B.Toteachstudentsaboutthehistoryofenvironmentalmovements.C.Tohelpstudentsunderstandhowtoprotecttheplanet.D.Tocomparedifferentcountries'environmentalpolicies.解析：单元核心是传授环保知识和行动方法，如课文总结"Protectingtheenvironmentiseveryone’sresponsibility."，对应选项C。二、填空题（总共10题，每题2分，共20分）1.Thepassagementionsthatrecyclingcan______wasteand______resources.参考答案：reduce/conserve解析：根据课文"Recyclinghelpsreducelandfillwasteandconservenaturalresources."，填空需对应原文动词。2.Tosaveenergy,weshould______thelightswhenleavingaroom.参考答案：turnoff解析：课文活动建议"Turnofflightstosaveelectricity."，填入动词短语。3.Theunitsuggeststhatusinga______bottleinsteadofaplasticoneisagoodwaytohelptheenvironment.参考答案：reusable解析：课文对比塑料瓶与可重复使用瓶，如"Useareusablebottletoreduceplasticwaste."，填入形容词。4.Manypeoplebelievethat______actionscanmakeabigdifferenceinprotectingtheplanet.参考答案：individual解析：课文强调个人责任，如"Individualactionscanmakeadifference."，填入形容词。5.ThepassageaboutWangWeishowsthatheis______aboutenvironmentalprotection.参考答案：serious/concerned解析：案例中王伟组织活动体现其环保意识，填入形容词。6.Toconservewater,studentsareaskedto______thetapwhilebrushingtheirteeth.参考答案：turnoff解析：课文节水建议"Turnoffthetapwhilebrushingteeth."，填入动词短语。7.Theunitincludesareadingpassageaboutastudentwho______acampaigntoreducepaperwaste.参考答案：starts/organizes解析：案例中涉及发起活动，填入动词。8.Thepassagementionsthatsolarpanelshelpreduce______onfossilfuels.参考答案：reliance/dependence解析：课文科技环保部分提到"Newtechnologieslikesolarpanelshelpreducerelianceonfossilfuels."，填入名词。9.Theunitteachesusthatprotectingtheenvironmentis______responsibility.参考答案：everyone’s/each解析：课文总结句"Protectingtheenvironmentiseveryone’sresponsibility."，填入所有格或代词。10.Tohelptheplanet,weshould______moreanddriveless.参考答案：walk/usepublictransportation解析：课文讨论绿色出行，填入动词或短语。三、判断题（总共10题，每题2分，共20分）1.Accordingtothepassage,allplasticwastecanberecycled.(×)解析：课文提到"Onlysometypesofplasticcanberecycledeasily."，并非所有塑料均可回收。2.Theunitsuggeststhatbuyingmoreelectronicdevicescanhelpsavepaper.(×)解析：课文强调减少纸张使用，而非增加电子设备。3.Turningofflightswhennotinusecansignificantlysaveenergy.(√)解析：课文明确指出"Turningofflightssavesalotofenergy."，正确。4.ThepassageaboutWangWeishowsthatheisnotinterestedinenvironmentalprotection.(×)解析：案例显示王伟积极组织环保活动，与题干相反。5.Recyclinghelpsreducetheamountofwasteinlandfills.(√)解析：课文核心观点之一是减少垃圾填埋，正确。6.Theunitteachesthatenvironmentalproblemscanonlybesolvedbygovernments.(×)解析：课文强调个人行动与政府作用并重，错误。7.Usingreusablebagsisagoodwaytoreduceplasticpollution.(√)解析：课文明确提倡使用可重复购物袋，正确。8.Thepassagementionsthatwaterisnotalimitedresource.(×)解析：课文强调节约用水，暗示水资源有限，错误。9.Theunitincludesareadingpassageaboutastudentwhotravelstoprotestpollution.(×)解析：案例为校园环保活动，非旅行抗议，错误。10.Themainpurposeoftheunitistocomparedifferentcountries'environmentalpolicies.(×)解析：单元重点是环保知识普及，非政策比较，错误。四、简答题（总共8题，每题2分，共16分）1.Whatarethreewaysstudentscanhelpprotecttheenvironment?参考答案：-Recyclewasteproperly.-Savewaterbyturningofftaps.-Usereusablebagsinsteadofplasticones.解析：需结合课文活动建议，列举至少三项具体行动。2.Whyisrecyclingimportantaccordingtotheunit?参考答案：Recyclingreduceslandfillwasteandconservesnaturalresources.Italsoreducespollutionbecauserecycledmaterialsdonotneednewrawmaterials.解析：需引用课文关于回收作用的描述，说明其环保意义。3.WhatdoesthepassageaboutWangWeiteachusaboutindividualactions?参考答案：Thepassageshowsthatevensmallactionscanmakeadifference.WangWei’scampaignprovesthatstudentscantakeinitiativetoprotecttheenvironment.解析：需分析案例中个人行动的示范作用。4.Howcanusingsolarpanelshelptheenvironment?参考答案：Solarpanelsgeneratecleanenergyfromthesun,reducingrelianceonfossilfuelslikecoalandoil.Thishelpslowerairpollutionandgreenhousegasemissions.解析：需结合课文科技环保部分解释太阳能的优势。5.Whydoestheunitemphasizesavingwater?参考答案：Waterisalimitedresource,andsavingithelpsensurethereisenoughcleanwaterforfuturegenerations.Italsoreducesenergyuseinwatertreatment.解析：需说明节约用水的必要性和长远意义。6.Whatisthedifferencebetweenatraditionallightbulbandanenergy-savingbulb?参考答案：Traditionalbulbswastemoreenergyandproducemoreheat,whileenergy-savingbulbsuselesselectricityandlastlonger.解析：需对比课文对两种灯泡的描述。7.Whydoestheunitsuggestusingpublictransportation?参考答案：Publictransportationlikebusesandtrainsuseslessenergyperpersonthancars,reducingpollutionandtrafficcongestion.Itisalsomorecost-effective.解析：需结合课文关于绿色出行的讨论。8.Whatisthemainmessageoftheunit"ProtectingtheEnvironment"?参考答案：Theunitteachesthatprotectingtheenvironmentrequiresbothindividualactionsandcollectiveefforts.Everyonehasaroletoplayinmakingtheplanethealthier.解析：需概括单元核心思想，强调责任与行动。五、应用题（总共8题，每题4分，共24分）1.Supposeyourschoolwantstostartarecyclingprogram.Writeashortparagraphsuggestingthreewaystoimprovetheprogram.参考答案：First,installmorerecyclingbinsineveryclassroomandlunchroom.Second,holdatrainingsessiontoteachstudentshowtosortwastecorrectly.Third,createarewardsystemforclassesthatrecyclethemost.Thesestepswillhelpincreaseparticipationandmaketheprogrammoreeffective.解析：需结合实际场景，提出具体可行的改进措施。2.ImagineyouareWangWei.Writeashortemailtoyourclassmatesaboutatree-plantingactivity.参考答案：Subject:JoinOurTree-PlantingDay!Dearclassmates,I’mexcitedtoannounceourschool’stree-plantingactivityonSaturday.Wewillplant100treestohelpabsorbcarbondioxideandbeautifyourcampus.Pleasebringglovesandwaterifyoucan.Let’smakeadifferencetogether!Best,WangWei解析：需模拟真实场景，包含活动目的、时间、参与方式等要素。3.Thepassagementionsthatsolarpanelshelpreducepollution.Writeashortparagraphexplaininghowthisworks.参考答案：Solarpanelsconvertsunlightintoelectricitywithoutburningfossilfuels.Thismeanstheydon’tproduceharmfulgaseslikecarbondioxideorsulfurdioxide,whichcauseairpollution.Byreplacingcoalornaturalgaspowerplants,solarenergyhelpscleantheairandcombatclimatechange.解析：需解释太阳能发电的原理及其环保优势。4.Supposeyourfamilyusesalotofplasticbags.Writeashortparagraphsuggestingthreewaystoreduceplasticuseathome.参考答案：First,keepreusableshoppingbagsinthecar.Second,useclothbagsforgroceriesinsteadofplasticones.Third,chooseproductswithminimalpackaging.Thesesmallchangescansignificantlyreducetheamountofplasticwasteourfamilyproduces.解析：需结合家庭场景，提出减少塑料使用的具体建议。5.Theunitsuggestssavingwaterbyturningofftaps.Writeashortparagraphexplainingwhythisisimportant.参考答案：Turningofftapssaveswaterthatcanbeusedfordrinking,agriculture,orindustrialpurposes.Everydropcounts,especiallyinareasfacingwatershortages.Additionally,lesswaterusemeanslessenergyisneededtotreatandpumpwater,furtherreducingenvironmentalimpact.解析：需说明节约用水的意义，结合水资源现状。6.Supposeyourschoolwantstoinstallenergy-savingbulbs.Writeashortparagraphexplainingthebenefits.参考答案：Energy-savingbulbsuseupto80%lesselectricitythantraditionalbulbsandlastmuchlonger.Thisreducesbothenergybillsandcarbonemissionsfrompowerplants.It’sasmartchoiceforschoolstosavemoneyandhelptheenvironmentatthesametime.解析：需对比两种灯泡的优劣，说明节能灯的优势。7.Thepassagementionsthatindividualactionscanmakeadifference.Writeashortparagraphdescribingasmallactionyoucantaketohelptheplanet.参考答案：Icanstartusingareusablewaterbottleinsteadofbuyingplasticones.EverytimeIcarrymyownbottle,Iavoidthrowingawayadisposableplasticbottle.Overtime,thissmallhabitcanreducealotofplasticwasteandhelpprotectmarineanimalsfrompollution.解析：需描述具体行动，并说明其环保意义。8.Supposeyourclassisstudyingenvironmentalprotection.Writeashortparagraphsuggestingaprojecttoraiseawareness.参考答案：Ourclasscancreateapostercampaigntoteachstudentsaboutrecycling.Wecandesigncolorfulpostersshowinghowtosortwasteandlistthebenefitsofrecycling.Postingtheminhallwaysandclassroomswillremindeveryonetorecycleproperlyandencouragemorepeopletoparticipate.解析：需提出具体项目，说明实施方式和预期效果。【标准答案及解析】一、单项选择题1.A2.B3.C4.B5.B6.B7.A8.B9.B10.C二、填空题1.reduce/conserve2.turnoff3.reusable4.individual5serious/concerned2.turnoff7.starts/organizes8.reliance/dependence9.everyone’s/each3.walk/usepublictransportation三、判断题1.×2.×3.√4.×5.√6.×7.√8