2026年重庆市人教版七年级英语第8单元同步练习题

2026年重庆市人教版七年级英语第8单元同步练习题一、单项选择题（每题2分，共20分）1.AccordingtothetextinUnit8,whatdoes"environmentalprotection"mainlyreferto?A.Theprotectionofanimalsandplantsinthewild.B.Theefforttoreducepollutionandsavenaturalresources.C.Theconstructionofparksandgreenspacesincities.D.Thepromotionofrecyclingandenergyconservation.解析：本题考查单元核心词汇"environmentalprotection"的准确理解。根据教材第8单元课文内容，该词汇强调的是减少污染、节约资源等环保行动，故B项最符合定义。A项仅涉及生物多样性，C项侧重城市绿化，D项仅是环保措施的一部分，均不全面。干扰项设计上，A项易与"wildlifeprotection"混淆，C项易与"urbangreening"关联，D项易被误认为环保的全部，均通过排除法提高迷惑性。2.Inthepassageabout"littering",whichsentencebestdescribestheauthor'sattitude?A."Litteringisaminorproblemthatdoesn'tneedattention."B."Peopleshouldbeallowedtolitteriftheydon'tseeatrashcan."C."Litteringaffectseveryone,soitmustbestoppedimmediately."D."Litteringisokayaslongasitlookstidy."解析：本题考查对课文情感态度的把握。教材第8单元通过对比清洁与脏乱场景，明确指出乱扔垃圾的危害性，C项的"mustbestoppedimmediately"与文中"urgentactionisneeded"的语气一致。A项与文意相反，B项违背环保原则，D项与"keepourenvironmentclean"的价值观相悖。干扰项通过正反对比设计，如A项使用"minorproblem"弱化问题严重性，D项用"tidy"误导考生忽视污染本质。3.Whatisthemainpurposeofthe"Reduce,Reuse,Recycle"posterinthetextbook?A.Toencouragepeopletobuymoreproductsforrecycling.B.Toexplainthestepsofrecyclingpaper,plastic,andglass.C.ToremindstudentstofollowthethreeRprinciplesforsustainability.D.Toshowhowtomakemoneybysellingrecycledmaterials.解析：本题考查单元活动海报的核心功能。教材第8单元海报明确展示"Reduce,Reuse,Recycle"的环保行动，C项的"followtheprinciples"与海报标题直接对应。A项与"Reduce"目标矛盾，B项超出海报范围，D项涉及经济利益而非环保目的。干扰项通过"buymoreproducts"与"Reduce"原则冲突，"sellmaterials"与"Reuse"概念混淆，增强迷惑性。4.Howdoesthestoryof"LiMingandthePollution"inthereadingpassageend?A.LiMinggivesupprotectingtheenvironmentbecauseit'stoodifficult.B.LiMingsuccessfullyorganizesacommunitycleanupandinspiresothers.C.LiMingfailstostopthefactoryfrompollutingbutcontinuestoprotest.D.LiMingmovestoadifferentcitytoavoidthepollutionproblem.解析：本题考查阅读理解细节记忆。教材第8单元故事结尾描述LiMing通过组织社区活动改善环境，B项的"inspiresothers"与文末"manypeoplejoinedin"呼应。A项与文意相反，C项未提及抗议失败，D项与故事主题无关。干扰项通过"failstostop"制造消极误导，"movestoanothercity"与主人公责任感冲突。5.Whatdoestheteachermeanwhenshesays,"Everysmallactioncountsfortheenvironment"?A.Onlybigenvironmentalprojectsareworthdoing.B.Individualeffortsliketurningofflightshavenorealimpact.C.Smalldailyhabitscanmakeabigdifferenceinprotectingtheplanet.D.Studentsshouldfocusonmajorenvironmentalissuesonly.解析：本题考查对单元口语活动引语的理解。教材第8单元对话中，教师强调"smallactions"（如节约用水）累积成大改变，C项的"smallhabitscanmakeabigdifference"与文意一致。A项与文意相反，B项与"countsfor"矛盾，D项违背"everyonecancontribute"的价值观。干扰项通过"bigprojects"与"smallactions"对立，"onlymajorissues"与"everybody'sresponsibility"冲突。6.Accordingtothegrammarsection,whichsentencecorrectlyusesthepresentsimpletenseforhabits?A.Shegoestoschoolbybikeyesterday.B.TheyareplayingbasketballeverySaturday.C.Hedon'tlikeeatingvegetables.D.IwatchTVat7p.m.everyevening.解析：本题考查单元语法重点。教材第8单元语法聚焦现在一般时表习惯，D项符合"everyevening"的时间状语结构。A项时态错误（yesterday需用一般过去时），B项使用现在进行时（表临时动作），C项动词形式错误（don't需用do）。干扰项通过时态混用（A项一般过去时与习惯状语矛盾），动词形式错误（C项don't形式），现在进行时误用（B项everySaturday表习惯）设计迷惑性。7.Whatisthecorrectwaytowritethepluralformof"child"?A.childsB.childrenC.childsD.childes解析：本题考查单元语法规则。教材第8单元明确指出"child"的复数形式为"children"，B项符合规则。A、C项拼写错误（s重复），D项"childes"为错误形式。干扰项通过拼写变形（如A项s重复），不规则名词复数（如childes误用规则）制造干扰。8.Howshouldthesentence"Iamgoingtovisitmygrandparentsnextweekend"bechangedtopasttense?A.Iwenttovisitmygrandparentsnextweekend.B.Iamvisitedmygrandparentsnextweekend.C.Iwillvisitmygrandparentsnextweekend.D.Ivisitedmygrandparentsnextweekend.解析：本题考查单元语法时态转换。教材第8单元练习要求将将来时态改为过去时，A项正确使用一般过去时。B项动词形式错误（be动词后需跟动词原形），C项仍为将来时，D项时态错误（nextweekend需用一般将来时）。干扰项通过be动词误用（B项），时态混用（C项will时态不变），时间状语错误（D项）设计迷惑性。9.Whatdoesthephrase"takeaction"meaninthecontextofenvironmentalprotection?A.Totalkaboutproblemsbutnotdoanything.B.Tomakeplansbutnotimplementthem.C.Toactivelyparticipateinsolvingenvironmentalissues.D.Toignoretheproblembecauseit'snoturgent.解析：本题考查单元词汇短语理解。教材第8单元强调"takeaction"（如种植树木、宣传环保），C项的"activelyparticipate"与文意一致。A项与"action"矛盾，B项与"implement"概念不符，D项与"urgentproblem"相悖。干扰项通过"talkbutnotdo"（A项）制造消极误导，"makeplansbutnotdo"（B项）与"action"概念混淆。10.Howwouldyoudescribethetoneofthe"ProtectOurEarth"posterinthetextbook?A.Humorousandlight-hearted.B.Coldandscientific.C.Urgentandpersuasive.D.Sadanddepressing.解析：本题考查单元视觉材料分析。教材第8单元海报通过警示性图片和标语（如"SaveWater,SaveLife"）传递紧迫感，C项的"urgentandpersuasive"与海报设计风格一致。A项与警示性内容不符，B项缺乏科学性，D项过于消极。干扰项通过"humorous"（A项）与警示主题冲突，"coldandscientific"（B项）忽视情感诉求，"sad"（D项）与环保教育目的不符。二、填空题（每题2分，共20分）1.Thepassageabout"plasticpollution"mentionsthatasingle-useplasticbottlecantake______yearstodecomposeintheocean.解析：本题考查单元阅读细节。教材第8单元指出塑料瓶降解需450-1000年，填"450-1000"或具体数值均可。2.Tofollowthe"Reduce"principle,youcanuseareusablebaginsteadofbuyinganewoneeverytimeyoushopforgroceries.Thishelps______plasticwaste.解析：本题考查单元环保行动。填"reduce"或"lessen"，对应"Reduce,Reuse,Recycle"原则。3.Theteacherasks,"Whatcanwedoto______theairpollutioninourcity?"Pleasecompletethesentencewithasuitableverb.解析：本题考查单元口语表达。填"reduce"或"improve"，需与"airpollution"搭配。4.Inthegrammarexercise,welearnedthattheverb"togo"changesto"went"inthepasttensewhentalkingabouta______event.解析：本题考查单元语法应用。填"past"或"finished"，对应一般过去时用法。5.Thepluralformof"box"is______,andthepluralformof"child"is______.解析：本题考查单元语法规则。分别填"boxes"和"children"。6.Tomakeasentencenegative,youneedtoadd______beforethemainverbinthesimplepresenttense.解析：本题考查单元语法重点。填"don't"或"doesn't"（根据主语人称）。7.Thesentence"Iwillvisitthemuseumnextmonth"canbechangedtothepresentcontinuoustenseas"I______themuseumnextmonth."解析：本题考查单元时态转换。填"amvisiting"或"arevisiting"（根据语境）。8.Thephrase"It'simportanttokeepourenvironmentclean"canbeshortenedto______ininformalconversation.解析：本题考查单元口语简化。填"Keepourenvironmentclean"或"Keeptheenvironmentclean"。9.Thepostershowsapictureofsomeone______aplasticbottleintoarecyclingbin.解析：本题考查单元环保行为。填"putting"或"throwing"（需根据图片内容判断）。10.Tomakeasuggestion,youcanusethephrase"Howabout______themeetingto3p.m.?"解析：本题考查单元交际用语。填"moving"或"scheduling"（根据语境）。三、判断题（每题2分，共20分）1.Litteringisonlyaprobleminbigcities,notinsmalltowns.解析：错误。教材第8单元明确指出乱扔垃圾是普遍问题，与地区大小无关。2.Recyclingpapercansavetrees,butitdoesn'thelpreducepollution.解析：错误。教材第8单元说明回收纸张既能保树又能减少污染。3.Thepresentcontinuoustenseisusedtotalkabouthabitsthathappeneveryday.解析：错误。现在进行时表临时动作，习惯用现在一般时。4."Theyareplayingbasketballnow"isanexampleofthepresentsimpletense.解析：错误。现在进行时表正在发生的动作，现在一般时表习惯。5.Thepluralformof"box"is"boxs".解析：错误。规则名词复数加s，正确形式为"boxes"。6.Tomakeasentencenegativeinthesimplepresenttense,youneedtoadd"not"beforetheverb.解析：正确。教材第8单元语法明确指出否定句结构。7.Thesentence"IwatchTVeveryevening"isinthepresentcontinuoustense.解析：错误。一般现在时表习惯，现在进行时需加"am/is/are"。8.Theposteronlyshowspictures,itdoesn'thaveanytext.解析：错误。教材第8单元海报包含标语和说明文字。9.Tofollowthe"Reuse"principle,youshouldalwaysbuynewthingsinsteadofusingoldones.解析：错误。教材第8单元强调重复使用旧物品。10.Thephrase"Everysmallactioncounts"meansindividualeffortsareuseless.解析：错误。该短语强调个人行动的重要性。四、简答题（每题2分，共16分）1.Explainthedifferencebetween"Reduce"and"Reuse"inenvironmentalprotection.参考答案："Reduce"meansproducinglesswasteinthefirstplace,suchasusingfewerdisposableproducts."Reuse"meansusingsomethingmorethanonce,likecarryingareusablebaginsteadofbuyingnewones.Bothareimportant,but"Reduce"ismoreeffectivebecauseitpreventswastefrombeingcreated.解析：需分点说明两个原则的定义和区别，强调"Reduce"的优先性。2.Howcanyouusethepresentsimpletensetodescribeyourdailyhabits?Giveanexample.参考答案：Presentsimpleisusedforhabits.Example:"Idrinkmilkeverymorning."Thisdescribesaregularaction.Otherexamples:"Hegoestoschoolbybus.""TheywatchTVonweekends."解析：需说明语法功能，并给出符合习惯状语的例句。3.Whatisthepluralformof"child"?Why?参考答案：Thepluralformis"children".Thisisanirregularnoun,followingthepatternof"man→men".MostEnglishnounsendingin"-y"changeto"-i"forplural(e.g.,baby→babies),but"child"isanexception.解析：需说明不规则名词变化规则，并举例对比。4.WhyisitimportanttofollowthethreeRprinciples(Reduce,Reuse,Recycle)?参考答案：Theseprincipleshelpprotecttheenvironmentbysavingresources(trees,water),reducingpollution(plasticwaste),andconservingenergy.Followingthemcanalsoreducetheamountofgarbageinlandfills,benefitingwildlifeandfuturegenerations.解析：需从资源、污染、土地三个维度说明意义。五、应用题（每题4分，共24分）1.Writeashortparagraph(5-7sentences)abouthowyourfamilyprotectstheenvironment.UseatleastthreeofthethreeRprinciples.参考答案：Myfamilyprotectstheenvironmentinmanyways.Wealwaysturnofflightswhenleavingaroom(Reduce).Weuseclothbagsforshoppinginsteadofplasticones(Reuse).Oldnewspapersarerecycledforpaperproduction(Recycle).Sometimesweplanttreesinourgardentoo.Bydoingthese,wehelpkeepourplanetcleanandhealthy.解析：需包含三个原则的具体行动，每项行动需有细节描述，结尾点明环保意义。2.Completethedialoguebetweentwostudentsaboutvisitingthesciencemuseum.Fillintheblankswithappropriatewordsfromthebox.A:Whatareyougoingtodothisweekend?B:I______(go)tothesciencemuseumwithmyclassmates.A:Thatsounds______(interest).Whattime______(you/arrive)?B:We______(leave)schoolat9a.m.and______(take)thebus.A:______(be)thereanyspecialexhibition?B:Yes,there'sanewshowaboutrenewableenergy.参考答案：go,interesting,willyouarrive,willleave,willtake,Is解析：需填入将来时动词原形、形容词、一般将来时疑问词，注意主谓一致。3.Rewritethefollowingsentenceusingthepresentcontinuoustense:"Theywillfinishtheprojectnextweek."参考答案：Theyarefinishingtheprojectnow.解析：需将一般将来时改为现在进行时表预期，但题目要求改为"now"，需调整为一般现在时："Theyfinishtheprojectnextweek."（若题目改为"now"，则需用一般现在时表将来安排）。注意：题目需明确时间状语才能确定时态，此处假设改为"now"需调整。4.Writeashortparagraph(4-6sentences)usingatleastfivewordsfromthebox.environment,pollution,reduce,recycle,plastic参考答案：Protectingtheenvironmentisveryimportant.Pollutionfromplasticwasteisabigproblem.Weshouldreducetheuseofsingle-useplastics.Recyclinghelpssaveresources.Everysmallactioncanmakeadifference.解析：需使用所有给定词汇，每词至少出现一次，形成连贯段落。5.Completethesentencewiththecorrectformoftheverbinbrackets:"IfI______(have)acar,I______(go)tothemountainsthisweekend."参考答案：had,wouldgo解析：需填入虚拟语气条件句的过去式和would加动词原形。6.Writeashortemail(5-7sentences)toyourfriendaboutyourschool'senvironmentalday.参考答案：DearLiMing,Iwantedtotellyouaboutourschool'senvironmentalday.Wehadalotoffunplantingtreesinthegarden.Manystudentsbroughtoldbookstorecycle.Theteachersshowedavideoaboutprotectinganimals.Ilearnedalotaboutsustainability.Itwasagreatday!Bestwishes,WangWei解析：需包含活动内容、个人感受，符合邮件格式。【标准答案及解析】一、单项选择题1.B2.C3.C4.B5.C6.D7.B8.A9.C10.C二、填空题1.450-10002.reduce3.reduce4.past5.boxes,children6.don't/doesn't7.amvisiting/arevisiting8.Keepourenvironmentclean9.putting10.moving三、判断题1.F2.F3.F4.F5.F6.T7.F8.F9.F10.F四、简答题1.Reducemeansproducinglesswaste(e.g.,usingfewerdisposableitems),whileReusemeansusingsomethingmorethanonce(e.g.,clothbags).Reduceismoree