2026年宁夏回族自治区银川市第一中学八年级英语第5单元课后练习题及答案

2026年宁夏回族自治区银川市第一中学八年级英语第5单元课后练习题及答案第1页共1页2026年宁夏回族自治区银川市第一中学八年级英语第5单元课后练习题及答案一、单项选择题（共10小题，每题2分）（每小题只有一个选项符合题意，请把正确选项的字母填在题后括号内）1.Whatshouldwedotoprotecttheenvironment?A.ThrowtrasheverywhereB.RecyclepaperandplasticC.UsedisposablechopstickseverydayD.Drivecarsinsteadoftakingbuses参考答案：B2.Howoftendoyouvisitthelibrary?A.EverydayB.EveryweekC.NeverD.Onlyduringholidays参考答案：B3.Whatisthebestwaytostudyforatest?A.WatchingTVallnightbeforethetestB.ReviewingnotesanddoingpracticeexercisesC.EatingjunkfoodandstayinguplateD.Askingfriendstohelpyoucheat参考答案：B4.Ifyouseesomeonebeingbullied,whatshouldyoudo?A.JoininandbullythemtooB.IgnorethemandwalkawayC.TellanadultorteacherD.Makefunofthemonline参考答案：C5.Whichoftheseisahealthyhabit?A.DrinkingsodaeverymealB.EatingfruitsandvegetablesC.StayinguplatetoplaygamesD.Notexercisingatall参考答案：B6.Whatisthemainideaofthispassage?(Thepassageisabouttheimportanceofexercise)A.ExerciseisboringB.ExerciseisonlyforathletesC.ExerciseisimportantforhealthD.Exercisemakesyoutired参考答案：C7.Howcanyouhelpyourparentsathome?A.MakingamessandnothelpingB.ComplainingaboutchoresC.DoingyourshareoftheworkD.Arguingwithyoursiblings参考答案：C8.Whatshouldyoudoifyouarelost?A.KeepwalkinginthesamedirectionB.AskastrangerforhelpC.GotoasafeplaceandcallforhelpD.Hideandhopesomeonefindsyou参考答案：C9.Whichoftheseisagoodstudyhabit?A.ListeningtomusicwhilestudyingB.StudyingwithfriendsallnightC.TakingregularbreaksD.Copyingnoteswithoutunderstanding参考答案：C10.WhatisthebestwaytoimproveyourEnglish?A.WatchingEnglishmovieswithoutsubtitlesB.OnlyreadingEnglishbooksC.PracticingspeakingandlisteningeverydayD.Givingupbecauseit'stoohard参考答案：C二、填空题（共10小题，每题2分）（请把正确答案直接填写在题中横线上，填写不完整的不得分）1.Thelibraryis______thanthesupermarket.参考答案：farther/further2.Ifyouwanttobeadoctor,youmuststudyhard______.参考答案：too3.Myfathergoestoworkbycar______hewakesupearly.参考答案：because4.Sheis______interestedinplayingbasketball______insinging.参考答案：more;less5.______youfinishyourhomework,youcanwatchTV.参考答案：Assoonas6.Theboyis______thanhisbrother,butheis______thanhissister.参考答案：taller;shorter7.Idon'tknowtheanswer,______Iwillasktheteacher.参考答案：so8.Thisbookis______interesting______thatone.参考答案：more;than9.______itrainstomorrow,wewillgotothepark.参考答案：If10.Theteacheraskedus______wehadfinishedourproject.参考答案：whether三、判断题（共10小题，每题2分）（正确的打“√”，错误的打“×”，把判断符号填在题后括号内）1.Thelibraryismorequietthantheclassroom.参考答案：√2.Ifyouwanttobeadoctor,youmustworkhardatschool.参考答案：√3.Myfathergoestoworkbycareveryday.参考答案：×4.Sheismoreinterestedinplayingbasketballthaninplayingsoccer.参考答案：√5.YoumustfinishyourhomeworkbeforeyouwatchTV.参考答案：√6.Theboyistallerthanhisbrother.参考答案：√7.Idon'tknowtheanswer,butIthinkitiscorrect.参考答案：×8.Thisbookismoreinterestingthanthatone.参考答案：√9.Ifitrainstomorrow,wewillstayathome.参考答案：√10.Theteacheraskedusifwefinishedourhomework.参考答案：√四、简答题（共8小题，每题2分）（请分点作答，语言简明、要点齐全，写在对应题目下方的横线上）1.Whatarethethreemainpartsofaformalletter?参考答案：①Thedate,②Thesalutation,③Thebodyparagraphs,④Theclosing,⑤Thesignature2.Howdoyoumakeacomparisonbetweentwopeopleorthingsusingcomparativeadjectives?参考答案：①Usecomparativeadjectives,②Add"-er"oruse"more"forlongerwords,③Use"than"tocompare,④Add"-est"oruse"most"forsuperlatives3.Whatisthestructureofanemail,andwhatinformationshoulditinclude?参考答案：①Thesubjectline,②Thegreeting,③Thebody,④Theclosing,⑤Thesignature4.Explainthedifferencebetween"too"and"so"inEnglish.参考答案：①"Too"means"excessively,"②"Too"isusedbeforeanadjectiveoradverb,③"So"means"toagreatextent,"④"So"isusedbeforeanadjectiveoradverb,⑤Use"too"foremphasisonexcess,⑥Use"so"foremphasisondegree5.Howdoyouusethepresentperfecttensetotalkaboutexperiences?参考答案：①Use"have/has+pastparticiple,"②Talkaboutlifeexperiences,③Useitwithtimeexpressionslike"ever,""never,""before,""since,"④Itconnectspastandpresent6.Whatisthefunctionofaconjunctioninasentence?参考答案：①Connectwordsorclauses,②Showrelationshipslikeaddition,subtraction,cause,effect,③Typesincludecoordinating(and,but,or),subordinating(because,although)7.DescribetheprocessofmakingaphonecallinEnglish.参考答案：①Greet,②Askifthepersonisfree,③Statethepurposeofthecall,④Exchangeinformation,⑤Endthecall8.HowcanyouaskforandgivedirectionsinEnglish?参考答案：①Use"Whereis...?"or"HowcanIgetto...?",②Askforlandmarks,③Givedirectionsusing"left,""right,""straight,"④Use"turn,""go,""walk"五、应用题（共8小题，每题3分）（请写出必要的文字说明、方程式和重要的演算步骤，只写最后结果不得分）1.Acityparkhastwoplaygrounds,ZoneAandZoneB.ZoneAhas120squaremetersofarea,andZoneBhas80squaremetersofarea.Theparkalsohasawalkingpaththatsurroundsbothplaygrounds.Ifthewalkingpathhasatotallengthof60meters,whatisthewidthofthewalkingpath?A.1meterB.2metersC.3metersD.4meters参考答案：B2.AscienceexperimentrequiresasolutionwithapHof5.ThestudentsmeasurethepHoftheirsolutionusingapHmeterandfindittobe6.WhatshouldtheydotoadjustthepHtotherequiredvalue?A.AddmoreacidB.AddmorebaseC.HeatthesolutionD.Coolthesolution参考答案：B3.Acompanyisplanningtobuildanewfactory.Theyhavetwooptionsforthelocation:LocationXandLocationY.LocationXisclosertothecitycenter,butitismoreexpensive.LocationYisfartherfromthecitycenter,butitislessexpensive.Thecompanyneedstodecidewhichlocationtochoosebasedonthefollowingfactors:A.ProximitytothecitycenterB.CostC.AccessibilityD.EnvironmentalimpactE.JobcreationopportunitiesF.TaxincentivesG.TransportationinfrastructureH.LocalregulationsWhichofthefollowingstatementsistrue?A.LocationXisalwaysthebetterchoicebecauseitisclosertothecitycenter.B.LocationYisalwaysthebetterchoicebecauseitislessexpensive.C.Thecompanyshouldconsiderallthefactorsbeforemakingadecision.D.Thecompanyshouldchoosethelocationthatisclosesttothecitycenter.参考答案：C4.Agroupofstudentsisconductinganexperimenttotesttheeffectofdifferentfertilizersonplantgrowth.Theyhavefourtypesoffertilizers:FertilizerA,FertilizerB,FertilizerC,andFertilizerD.Theyplanttenseedsineachtypeoffertilizerandmeasuretheheightoftheplantsafteronemonth.Theresultsareasfollows:FertilizerA:15cm,14cm,16cm,15cm,14cm,15cm,16cm,15cm,14cm,15cmFertilizerB:12cm,13cm,11cm,12cm,14cm,13cm,12cm,11cm,13cm,12cmFertilizerC:18cm,17cm,19cm,18cm,20cm,17cm,19cm,18cm,20cm,17cmFertilizerD:10cm,11cm,9cm,10cm,12cm,11cm,10cm,9cm,12cm,11cmWhichfertilizeristhemosteffectiveinpromotingplantgrowth?A.FertilizerAB.FertilizerBC.FertilizerCD.FertilizerD参考答案：C5.Acityisplanningtoinstallnewstreetlightstoimprovenighttimesafety.Theyhavetwooptionsforthetypeofstreetlights:LEDstreetlightsandtraditionalincandescentstreetlights.LEDstreetlightsaremoreenergy-efficientandhavealongerlifespan,buttheyaremoreexpensive.Traditionalincandescentstreetlightsarelessenergy-efficientandhaveashorterlifespan,buttheyarelessexpensive.Thecityneedstodecidewhichtypeofstreetlightstoinstallbasedonthefollowingfactors:A.EnergyefficiencyB.LifespanC.CostD.MaintenancerequirementsE.LightoutputF.EnvironmentalimpactG.AestheticsH.PublicopinionWhichofthefollowingstatementsistrue?A.LEDstreetlightsarealwaysthebetterchoicebecausetheyaremoreenergy-efficient.B.Traditionalincandescentstreetlightsarealwaysthebetterchoicebecausetheyarelessexpensive.C.Thecityshouldconsiderallthefactorsbeforemakingadecision.D.Thecityshouldchoosethetypeofstreetlightsthathavethelongestlifespan.参考答案：C6.Acompanyisproducinganewproductandneedstodecideonthebestpackagingmaterial.Theyhavethreeoptions:Paperpackaging,Plasticpackaging,andGlasspackaging.Paperpackagingisbiodegradableandrecyclable,butitisnotverystrong.Plasticpackagingisstronganddurable,butitisnotbiodegradableandrecyclable.Glasspackagingisstronganddurable,butitisfragileandexpensive.Thecompanyneedstodecidewhichpackagingmaterialtousebasedonthefollowingfactors:A.BiodegradabilityB.RecyclabilityC.StrengthD.DurabilityE.CostF.AestheticsG.EnvironmentalimpactH.CustomerpreferenceWhichofthefollowingstatementsistrue?A.Paperpackagingisalwaysthebetterchoicebecauseitisbiodegradable.B.Plasticpackagingisalwaysthebetterchoicebecauseitisstronganddurable.C.Thecompanyshouldconsiderallthefactorsbeforemakingadecision.D.Thecompanyshouldchoosethepackagingmaterialthatisthemostexpensive.参考答案：C7.Aschoolisplanningtoorganizeafieldtriptoasciencemuseum.Theyhavetwooptionsforthetransportation:BustransportationandTraintransportation.Bustransportationismoreflexibleandcanpickupstudentsclosertotheirhomes,butitismoreexpensive.Traintransportationislessflexibleandcannotpickupstudentsasclosetotheirhomes,butitislessexpensive.Theschoolneedstodecidewhichtransportationtousebasedonthefollowingfactors:A.CostB.FlexibilityC.ComfortD.SafetyE.EnvironmentalimpactF.TimeefficiencyG.AccessibilityH.StudentpreferencesWhichofthefollowingstatementsistrue?A.Bustransportationisalwaysthebetterchoicebecauseitismoreflexible.B.Traintransportationisalwaysthebetterchoicebecauseitislessexpensive.C.Theschoolshouldconsiderallthefactorsbeforemakingadecision.D.Theschoolshouldchoosethetransportationthatisthefastest.参考答案：C8.Acompanyisplanningtolaunchanewproductandneedstodecideonthebestmarketingstrategy.Theyhavefouroptions:Socialmediamarketing,Televisionadvertising,Radioadvertising,andPrintadvertising.Socialmediamarketingiscost-effectiveandcanreachalargeaudience,butitmaynotbeverytargeted.Televisionadvertisingisveryeffectiveinreachingalargeaudience,butitisveryexpensive.Radioadvertisingislessexpensivethantelevisionadvertising,butitmaynotbeveryeffectiveinreachingatargetedaudience.Printadvertisingislessexpensivethantelevisionadvertising,butitmaynotbeveryeffectiveinreachingalargeaudience.Thecompanyneedstodecidewhichmarketingstrategytousebasedonthefollowingfactors:A.CostB.ReachC.TargetaudienceD.EffectivenessE.BrandimageF.CustomerengagementG.LongevityH.MeasurabilityWhichofthefollowingstatementsistrue?A.Socialmediamarketingisalwaysthebetterchoicebecauseitiscost-effective.B.Televisionadvertisingisalwaysthebetterchoicebecauseitisveryeffectiveinreachingalargeaudience.C.Thecompanyshouldconsiderallthefactorsbeforemakingadecision.D.Thecompanyshouldchoosethemarketingstrategythatistheleastexpensive.参考答案：C标准答案与解析一、单项选择题1.参考答案：B解析：本题考查环境保护的常识。A选项“到处扔垃圾”显然会污染环境，是错误的行为。B选项“回收纸和塑料”是正确的环保行为，可以减少垃圾并节约资源。C选项“每天使用一次性筷子”会消耗大量资源并产生垃圾，是错误的行为。D选项“开车而不是乘坐公交车”会增加空气污染，也是错误的行为。因此，正确答案是B。2.参考答案：B解析：本题考查日常活动频率的表达。A选项“每天”过于频繁，一般不会这样描述。B选项“每周”是比较常见的频率，符合实际情况。C选项“从不”过于绝对，不符合一般情况。D选项“只在假期”过于特殊，不符合一般情况。因此，正确答案是B。3.参考答案：B解析：本题考查学习方法。A选项“考试前一晚看电视”会浪费时间，不利于学习。B选项“复习笔记和做练习题”是有效的学习方法，可以帮助理解和记忆知识。C选项“吃垃圾食品并熬夜”会损害健康，不利于学习。D选项“让朋友帮助你作弊”是不诚实的行为，不利于真正的学习。因此，正确答案是B。4.参考答案：C解析：本题考查应对校园欺凌的行为。A选项“加入并欺负他们”是错误的行为，会加剧欺凌。B选项“无视他们并走开”是不负责任的行为，会让欺凌者继续欺负人。C选项“告诉成年人或老师”是正确的做法，可以寻求帮助并制止欺凌。D选项“在网上嘲笑他们”是网络欺凌，也是错误的行为。因此，正确答案是C。5.参考答案：B解析：本题考查健康习惯。A选项“每餐喝汽水”会摄入过多糖分，不利于健康。B选项“吃水果和蔬菜”是健康的习惯，可以提供必要的营养。C选项“熬夜玩游戏”会损害健康，不利于学习和生活。D选项“完全不锻炼”会缺乏运动，不利于健康。因此，正确答案是B。6.参考答案：C解析：本题考查文章主旨的把握。A选项“运动很无聊”是对文章主旨的误解。B选项“运动只适合运动员”是对文章主旨的误解。C选项“运动对健康很重要”符合文章的主旨，即强调运动的重要性。D选项“运动会让你累”是对文章主旨的误解。因此，正确答案是C。7.参考答案：C解析：本题考查帮助父母的行为。A选项“制造混乱并且不帮忙”是错误的行为。B选项“抱怨家务”是不负责任的行为。C选项“做你应分担的工作”是正确的做法，可以减轻父母的负担。D选项“和兄弟姐妹争吵”会制造家庭矛盾，是错误的行为。因此，正确答案是C。8.参考答案：C解析：本题考查迷路时的应对方法。A选项“保持同一方向走”可能会走得更远，是错误的行为。B选项“向陌生人求助”可能会遇到危险，是错误的行为。C选项“去安全的地方并求救”是正确的做法，可以确保安全并得到帮助。D选项“躲起来希望有人找到你”可能会延误求救时间，是错误的行为。因此，正确答案是C。9.参考答案：C解析：本题考查良好的学习习惯。A选项“学习时听音乐”可能会分散注意力，是错误的行为。B选项“和朋友熬夜学习”可能会影响健康，是错误的行为。C选项“定期休息”是良好的学习习惯，可以帮助保持精力和效率。D选项“抄笔记而不理解”是无效的学习，是错误的行为。因此，正确答案是C。10.参考答案：C解析：本题考查提高英语的方法。A选项“不看字幕看英语电影”可能无法理解内容，是错误的方法。B选项“只读英语书”可能会缺乏实际应用，是错误的方法。C选项“每天练习说和听”是有效的提高英语的方法，可以增强语言能力。D选项“因为太难而放弃”是逃避困难，是错误的态度。因此，正确答案是C。二、填空题1.参考答案：farther/further解析：本题考查形容词比较级。farther指实际距离远，further指抽象距离远或程度深，根据题干语境指实际距离，应填farther。2.参考答案：too解析：本题考查too...to...结构。too意为“太...以至于不能”，符合句意，表示学习太努力以至于可以成为医生。3.参考答案：because解析：本题考查原因状语从句。because意为“因为”，引导原因状语从句，符合句意，解释父亲早起的原因。4.参考答案：more;less解析：本题考查形容词比较级。interested是多音节形容词，比较级前加more，less用于否定句或not...as...as结构，符合句意，表示对篮球兴趣更大，对唱歌兴趣更小。5.参考答案：Assoonas解析：本题考查assoonas引导的时间状语从句。assoonas意为“一...就...”，符合句意，表示做完作业就可以看电视。6.参考答案：taller;shorter解析：本题考查形容词比较级。than比较身高，brother比较的对象是男性，sister比较的对象是女性，符合句意，表示比哥哥高，比姐姐矮。7.参考答案：so解析：本题考查so...that...结构。so意为“如此...以至于”，引导结果状语从句，符合句意，表示不知道答案所以会问老师。8.参考答案：more;than解析：本题考查形容词比较级。interesting是多音节形容词，比较级前加more，than比较两者之间的兴趣程度，符合句意，表示这本书比那本更有趣。9.参考答案：If解析：本题考查if引导的条件状语从句。if意为“如果”，引导条件状语从句，符合句意，表示如果明天不下雨，就会去公园。10.参考答案：whether解析：本题考查whether引导的宾语从句。whether意为“是否”，引导宾语从句，符合句意，表示老师问我们是否完成了项目。三、判断题1.参考答案：√解析：本题考查形容词比较级。题干中的“quiet”和“classroom”都是八年级上册已学内容。图书馆通常比教室安静，因此该陈述正确。2.参考答案：√解析：本题考查一般现在时和情态动词。该句符合八年级上册所学知识，表达成为医生需要努力学习，正确。3.参考答案：×解析：本题考查一般现在时。虽然该句符合时态，但八年级上册未学习“bycar”的表达，应改为“bybus”，因此错误。4.参考答案：√解析：本题考查形容词比较级。该句符合八年级上册所学知识，表达对篮球的兴趣比对足球高，正确。5.参考答案：√解析：本题考查一般现在时和情态动词。该句符合八年级上册所学知识，表达做作业在看电视之前，正确。6.参考答案：√解析：本题考查形容词比较级。该句符合八年级上册所学知识，表达男孩比哥哥高，正确。7.参考答案：×解析：本题考查一般现在时和情态动词。该句中“Ithinkitiscorrect”不符合语法，应改为“Ithinkitiswrong”，因此错误。8.参考答案：√解析：本题考查形容词比较级。该句符合八年级上册所学知识，表达这本书比那本书更有趣，正确。9.参考答案：√解析：本题考查一般现在时和情态动词。该句符合八年级上册所学知识，表达如果下雨明天会待在家里，正确。10.参考答案：√解析：本题考查一般现在时和情态动词。该句符合八年级上册所学知识，表达老师问我们是否完成作业，正确。四、简答题1.参考答案：①Thedate,②Thesalutation,③Thebodyparagraphs,④Theclosing,⑤Thesignature解析：本题考查正式信函的结构。正式信函通常包括日期、称呼、正文、结尾敬语和署名。这些部分是构成正式信函的基本要素，缺一不可。解析中详细列出了正式信函的五个主要部分，并解释了每个部分的功能。2.参考答案：①Usecomparativeadjectives,②Add"-er"oruse"more"forlongerwords,③Use"than"tocompare,④Add"-est"oruse"most"forsuperlatives解析：本题考查比较级形容词的用法。在英语中，比较两个人或事物时，通常使用比较级形容词。对于短形容词，可以在词尾加"-er"来形成比较级；对于长形容词，通常使用"more"来修饰。在比较时，需要使用"than"来连接两个被比较的对象。对于最高级，短形容词加"-est"，长形容词使用"most"。3.参考答案：①Thesubjectline,②Thegreeting,③Thebody,④Theclosing,⑤Thesignature解析：本题考查电子邮件的结构。电子邮件通常包括主题行、问候语、正文、结尾敬语和署名。这些部分是电子邮件的基本组成部分，每个部分都有其特定的功能和格式要求。4.参考答案：①"Too"means"excessively,"②"Too"isusedbeforeanadjectiveoradverb,③"So"means"toagreatextent,"④"So"isusedbeforeanadjectiveoradverb,⑤Use"too"foremphasisonexcess,⑥Use"so"foremphasisondegree解析：本题考查"too"和"so"的用法区别。"Too"表示"过度"，通常用于形容词或副词之前，强调超过某个程度。"So"表示"程度很高"，也用于形容词或副词之前，强调程度