2026学年八年级英语下册第八单元必背知识点第一次月考含答案及解析

2026学年八年级英语下册第八单元必背知识点第一次月考含答案及解析考试时长：120分钟满分：100分班级：__________姓名：__________学号：__________得分：__________一、单选题（总共10题，每题2分，总分20分）1.Whatdoes"sustainabledevelopment"meanaccordingtotheunit?A.RapideconomicgrowthatanycostB.ProtectingtheenvironmentwhilemeetinghumanneedsC.ReducingindustrialproductiontosaveenergyD.Encouragingtourismtogeneraterevenue2.WhichofthefollowingisNOTatypicalproblemmentionedintheunitaboutclimatechange?A.RisingsealevelsB.IncreasedrainfallC.MorefrequentdroughtsD.Decreasedwildlifepopulations3.Thephrase"takeaction"intheunitisclosesttowhichChineseexpression?A.等待机会(Waitingforopportunities)B.采取行动(Takingaction)C.忽视问题(Ignoringproblems)D.放弃努力(Givingupeffort)4.Whatisthemainpurposeoftheunit'sreadingpassageaboutplasticpollution?A.TopromotetheuseofplasticproductsB.ToexplainhowplasticismadeC.ToraiseawarenessaboutitsharmfuleffectsD.Tosuggestsolutionsforplasticrecycling5.Theunit'sgrammarsectionfocusesonwhichverbtense?A.PresentsimpleB.PastcontinuousC.FutureperfectD.Presentcontinuous6.Whichwordbestdescribesthetoneoftheunit'swritingaboutenvironmentalprotection?A.HumorousB.InformativeC.DescriptiveD.Argumentative7.Theunitintroduceswhichtypeofwritingmostfrequently?A.NarrativeessaysB.PersuasivelettersC.ScientificreportsD.Personaldiaries8.Whatisthekeyskillemphasizedintheunit'sspeakingactivities?A.StorytellingB.DebateC.DescribinggraphsD.Givingopinions9.Theunit'svocabularysectionincludeswordsrelatedtowhichtopic?A.FoodandcultureB.TravelandadventureC.EnvironmentandsustainabilityD.Musicandarts10.WhichunitskillisNOTcoveredintheunit'sassessment?A.ReadingcomprehensionB.WritingaformalreportC.ListeningtointerviewsD.Speakinginrole二、填空题（总共10题，每题2分，总分20分）1.Theunitemphasizestheimportanceof_______toprotecttheplanet.2.A_______isatoolusedtomeasureairquality.3.Theunitsuggests_______asawaytoreduceplasticwaste.4.Thereadingpassagediscussestheimpactof_______onmarinelife.5.Theunit'sgrammarsectionteacheshowtouse_______totalkaboutfutureplans.6.Theunitincludesawritingtaskabout_______inourcommunity.7.Theunit'sspeakingactivityinvolvesdiscussing_______withapartner.8.Theunitintroducestheconceptof_______tobalancedevelopmentandenvironment.9.Theunit'svocabularyincludeswordslike_______and_______todescribeenvironmentalissues.10.Theunitencouragesstudentsto_______tomakeadifference.三、判断题（总共10题，每题2分，总分20分）1.Theunitonlyfocusesonproblemswithoutofferingsolutions.(×)2.Theunit'sreadingpassageisaboutthebenefitsofplasticproducts.(×)3.Theunitteacheshowtowriteaformalresearchpaper.(×)4.Theunitincludesactivitiestopracticespeakingaboutenvironmentalissues.(√)5.Theunit'sgrammarsectioncoversthepresentperfecttense.(×)6.Theunitintroducesvocabularyrelatedtofoodandculture.(×)7.Theunitemphasizestheneedforimmediateactiononclimatechange.(√)8.Theunit'swritingtaskrequiresstudentstopersuadeotherstorecycle.(√)9.Theunitincludeslisteningexercisesaboutenvironmentaldocumentaries.(×)10.Theunitfocusesonregionalenvironmentalissuesonly.(×)四、简答题（总共4题，每题4分，总分16分）1.Explainthedifferencebetween"sustainabledevelopment"and"rapideconomicgrowth."2.Describeonewaytheunitsuggestsstudentscanhelpreduceplasticwaste.3.Whatisthepurposeoftheunit'sgrammarsectiononfuturetenses?4.Whyisitimportanttodiscussenvironmentalissuesinclass?五、应用题（总共4题，每题6分，总分24分）1.Imagineyouarewritingashortparagraphaboutalocalenvironmentalproblem.Useatleastthreevocabularywordsfromtheunitandonesentencewithafuturetense.2.Createadialoguebetweentwostudentsdiscussinghowtheycanreduceplasticwasteatschool.Useatleasttwofuturetenses.3.Readthefollowinggraphaboutplasticwasteandwriteatwo-sentencesummaryusingthepresentperfecttense.[Graph:Yearlyplasticwasteproductionintonsfrom2010to2025,showingasteadyincrease]4.Writeashortemailtoyourschoolprincipalsuggestingonewaytoimproveenvironmentalawareness.Usethepresentcontinuoustensetodescribeactions.【标准答案及解析】一、单选题1.B解析：Sustainabledevelopmentisthecoreconceptoftheunit,balancinghumanneedswithenvironmentalprotection.2.B解析：Increasedrainfallisnotatypicalproblemdirectlydiscussedintheunitaboutclimatechange.3.B解析："Takeaction"meansactivelyaddressingissues,similarto"采取行动."4.C解析：Thereadingpassagehighlightstheharmfuleffectsofplasticpollutiontoraiseawareness.5.D解析：Theunitfocusesonpresentcontinuousforfuturearrangements.6.B解析：Thetoneisinformative,providingfactsaboutenvironmentalissues.7.B解析：Theunitfrequentlyusespersuasivewritingtoencourageaction.8.D解析：Speakingactivitiesfocusonexpressingopinionsonenvironmentaltopics.9.C解析：Vocabularyiscenteredonenvironmentandsustainability.10.B解析：Writingaformalreportisnotcovered;theunitfocusesonshortertasks.二、填空题1.action解析：Theunitstressestakingactiontoprotecttheplanet.2.airqualityindex解析：Thistoolmeasuresairpollutionlevels.3.reducingsingle-useplastics解析：Theunitsuggestsavoidingdisposableitems.4.plasticpollution解析：Thepassagediscussesitsimpactonoceans.5.futuresimple解析：Usedtotalkaboutfutureplans(e.g.,"willreducewaste").6.environmentalproblems解析：Writingtaskasksaboutissuesinthecommunity.7.environmentalprotection解析：Speakingactivityinvolvesdiscussingthistopic.8.sustainabledevelopment解析：Balancinggrowthwithenvironmentalcare.9.pollution,conservation解析：Vocabularyincludeswordslikethese.10.makechanges解析：Encouragesstudentstocontributetosolutions.三、判断题1.×解析：Theunitincludessolutionslikerecyclingandreducingwaste.2.×解析：Thepassagecriticizesplastic,notpromotingitsuse.3.×解析：Focusesonshorterwritingtasks,notresearchpapers.4.√解析：Speakingactivitiesinvolvediscussingenvironmentalissues.5.×解析：Teachesfuturesimple,notpresentperfect.6.×解析：Vocabularyisaboutenvironment,notfoodculture.7.√解析：Emphasizesurgencyinclimatechangeaction.8.√解析：Writingtaskaskstopersuadeotherstorecycle.9.×解析：Listeningexercisesarenotpartoftheunit.10.×解析：Coversglobalenvironmentalissues,notjustregionalones.四、简答题1.Sustainabledevelopmentbalanceseconomicgrowthwithenvironmentalprotection,whilerapideconomicgrowthoftenignoresenvironmentalcosts.2.Studentscanreduceplasticwastebyusingreusablebagsinsteadofsingle-useones.3.Thegrammarsectionteachesfuturesimple(e.g.,"Wewillplanttrees")toplanactions.4.Discussingenvironmentalissuesraisesawa