2025-2026年广东省苏教版九年级英语下册第4单元同步练习题

2025-2026年广东省苏教版九年级英语下册第4单元同步练习题一、单选题（总共10题，每题2分，共20分）1.根据苏教版九年级英语下册第4单元课文内容，Whatisthemainpurposeofthepassage"ProtectingtheEnvironment"?A.Todescribethebeautyofnatureindifferentseasons.B.Toexplainhowtoreduceplasticwasteeffectively.C.Topersuadereaderstotakeactionagainstenvironmentalpollution.D.Tointroducethehistoryofenvironmentalprotectionmovements.参考答案：C解析：本单元课文重点围绕环境保护展开，通过多个案例和倡议，强调个人和社会的责任。选项A涉及自然描写，但非核心主题；选项B仅是环保措施之一，未涵盖全文主旨；选项D偏离课文内容。正确答案C准确概括了课文通过对比污染现状与解决方案，呼吁读者参与环保行动的写作目的。2.Intheunit,"SaveWater,SavetheWorld"ismentionedasaslogan.Whichsentencebestreflectsitsmeaningaccordingtothetext?A.Drinkingwatereverydaykeepsyouhealthy.B.Waterconservationisonlyimportantindrought-strickenareas.C.Usinglesswaterhelpsmaintainglobalecologicalbalance.D.Water-savingdevicesareunnecessaryinmodernhomes.参考答案：C解析：课文通过数据对比和案例说明，指出水资源短缺与气候变化、生物多样性丧失的关联。选项A仅描述个人行为；选项B以偏概全；选项D与课文倡导的节约精神相悖。选项C准确传达了节约用水对全球生态系统的深远影响。3.Thepassage"MyDreamJob:EnvironmentalScientist"includesadescriptionofascientist'sdailytasks.WhichactivityisNOTmentioned?A.Conductingfieldresearchinpollutedrivers.B.Analyzingsoilsamplesforcontaminationlevels.C.Designingeco-friendlypackagingforsupermarkets.D.Presentingfindingsatinternationalconferences.参考答案：C解析：文中详细描述了环境科学家的实地考察、数据分析和学术交流工作，但未提及参与商业产品设计。选项A、B、D均符合课文内容，选项C属于跨领域活动，故为正确答案。4.Accordingtothedialoguein"ADayintheLifeofaRecycler,"howdoesthespeakerfeelabouttheirjob?A.Boredbecauseitinvolvesrepetitivetasks.B.Excitedbecauseithelpsreducewaste.C.Anxiousaboutjobsecurityinthefuture.D.Indifferenttowardenvironmentalissues.参考答案：B解析：对话中，主人公多次强调回收工作对减少垃圾填埋、节约资源的意义，并自豪地展示工作成果。选项A、C、D与文中积极态度不符，选项B准确反映了其职业认同感。5.Thereading"GlobalWarming:FactorFiction?"usesstatisticstosupportitsargument.WhichdatapointisNOTcitedinthetext?A.Theriseinaverageglobaltemperatureby1.2°Csince1900.B.Theincreaseinpolaricemeltby13%overfiveyears.C.ThecorrelationbetweenCO₂emissionsandhurricanes.D.Thenumberofendangeredspeciesduetoclimatechange.参考答案：C解析：课文列举了气温变化、冰川融化、物种濒危等数据，但未涉及温室气体与飓风频率的直接关联。选项A、B、D均有原文依据，选项C为合理推测但未在文中出现。6.Intheunit'sgrammarsection,thestructure"Itisimportantto..."isusedtoexpressnecessity.Whichsentencecorrectlyappliesthispattern?A.Itisimportantthatyoufinishhomeworkquickly.B.Itisimportanttobehonestineverysituation.C.Itisimportantforhimtowearauniform.D.Itisimportanttonotforgetyourkeysathome.参考答案：B解析：该结构强调行为必要性，选项B符合语法规则且符合课文倡导的价值观。选项A使用错误从句；选项C缺少介词；选项D否定形式不适用。7.Thewritingtaskasksstudentstowritealettertoalocalgovernmentofficialaboutpollution.Whichopeningsentenceismostappropriate?A."DearMr.Smith,Ihopeyouaredoingwell."B."Towhomitmayconcern,Iamwritingtocomplain."C."Hello,Iwanttotellyouabouttheriverpollutionproblem."D."DearSir/Madam,Iamconcernedaboutthecity'senvironment."参考答案：D解析：正式信函需明确收件人、事由和语气。选项A过于随意；选项B语气强硬；选项C缺乏礼貌；选项D符合公函格式，体现学生责任感。8.Theunit'sspeakingactivityinvolvesrole-playingaconversationbetweenareporterandanenvironmentalexpert.Whatshouldthereporteraskabout?A.Theexpert'sfavoritehobbyoutsidework.B.Theexpert'ssalaryasanenvironmentalconsultant.C.Theexpert'sopiniononrenewableenergypolicies.D.Theexpert'sfavoritebrandofsportsshoes.参考答案：C解析：角色扮演需围绕单元主题，选项A、D与环保无关；选项B涉及隐私；选项C符合课文讨论的政策议题，考察学生信息整合能力。9.Theunit'svocabularysectionincludestheword"sustainable."Whichsentencebestdefinesit?A.Somethingthatlastsforaverylongtime.B.Somethingthatcausesseriouspollution.C.Somethingthatisgoodforanimalsonly.D.Somethingthatusestoomuchenergy.参考答案：A解析：课文通过案例解释可持续发展的概念，强调资源利用的长期性。选项B、C、D与定义相反，选项A准确概括了"可持续"的核心含义。10.Theunit'sassessmenttaskasksstudentstodesignaposter.WhichelementshouldNOTbeincluded?A.Acatchysloganlike"GreenFuture,CleanEarth."B.Agraphshowingglobalplasticwasteproduction.C.Aphotoofapollutedriverwithawarningsign.D.Alistofshoppingbrandsthatuseexcessivepackaging.参考答案：D解析：海报设计需聚焦环保主题，选项A、B、C均符合宣传需求；选项D涉及商业批评，超出学生能力范围且可能引发争议。二、填空题（总共10题，每题2分，共20分）1.Thepassage"ProtectingtheEnvironment"mentionsthatdeforestationcontributesto_______and_______intheclimatesystem.参考答案：globalwarming,biodiversityloss解析：文中通过对比森林砍伐前后的气候数据和物种分布变化，指出其双重危害，填空需准确对应原文术语。2.In"SaveWater,SavetheWorld,"theauthorsuggestsusinga_______tomeasurewaterusageinhouseholds.参考答案：smartmeter解析：课文对比传统水表与智能计量设备的效率，填空需体现科技手段。3.Thecharacterin"MyDreamJob"mentionsthatenvironmentalscientistsneedastrongbackgroundin_______and_______toanalyzepollutiondata.参考答案：chemistry,biology解析：文中通过角色自述，强调跨学科知识需求，填空需涵盖核心科目。4.Accordingtotherecyclerin"ADayintheLife,"recyclingonetonofpapercansave_______oftrees.参考答案：17解析：对话中用具体数字说明环保效益，填空需记忆关键数据。5.Thereading"GlobalWarming:FactorFiction?"disputestheclaimthatrisingtemperaturesaredueto_______.参考答案：naturalcycles解析：文中通过科学数据反驳自然周期论，填空需对应争议点。6.Thegrammarsectionteachesthestructure"Itisimportantto_______(verb)"toexpressadvice.参考答案：do解析：课文通过例句说明该结构用法，填空需填入动词原形。7.Thewritingtaskrequiresstudentstousethephrase"Inmyopinion..."tostatetheirviewsonpollutionsolutions.参考答案：解析：正式写作需体现个人立场，填空需填入过渡短语。8.Thespeakingactivityinvolvesdiscussingtheimpactof_______onmarinelife.参考答案：plasticpollution解析：角色扮演需结合单元主题，填空需填入核心议题。9.Theunit'svocabularyincludestheword"conservation,"whichmeansprotectingnaturalresourcestoprevent_______.参考答案：depletion解析：课文通过定义解释保护与消耗的关系，填空需填入反义词。10.Theposterdesignshouldincludeacalltoactionlike"Jointhe_______toreducewaste."参考答案：zero-wastemovement解析：宣传材料需呼吁参与，填空需填入环保倡议名称。三、判断题（总共10题，每题2分，共20分）1.Thepassage"ProtectingtheEnvironment"onlyfocusesonurbanpollutionproblems.参考答案：False解析：文中通过农村垃圾焚烧案例说明污染的普遍性，判断需结合全文。2.In"SaveWater,SavetheWorld,"theauthorsuggeststhatrainwaterharvestingisunnecessaryincoastalregions.参考答案：False解析：课文强调全球水资源分布不均，填空需注意地域差异。3.Thecharacterin"MyDreamJob"mentionsthatenvironmentalscientistsworkonlyinlaboratories.参考答案：False解析：文中描述实地考察场景，判断需区分工作场所。4.Therecyclerin"ADayintheLife"findstheirjobboringbecauseitlackschallenges.参考答案：False解析：对话中强调工作意义，判断需识别情感态度。5.Thereading"GlobalWarming:FactorFiction?"supportstheideathatclimatechangeisexaggeratedbymedia.参考答案：False解析：文中引用科学报告，判断需识别立场。6.Thegrammarsectionteachesthestructure"Itisimportantto..."formakingrequests.参考答案：False解析：该结构用于表达必要性，判断需区分用法。7.Thewritingtaskrequiresstudentstoincludepersonalanecdotesintheirletterstoofficials.参考答案：False解析：正式信函需客观陈述，判断需识别写作规范。8.Thespeakingactivityinvolvesdebatingwhetherrecyclingismoreeffectivethanreducingwaste.参考答案：True解析：角色扮演需体现对立观点，判断需识别讨论主题。9.Theunit'svocabularyincludestheword"sustainable"asmeaning"short-term."参考答案：False解析：课文强调长期性，判断需识别反义词。10.Theposterdesignshouldavoidusingstatisticstosupportenvironmentalclaims.参考答案：False解析：宣传材料需数据支撑，判断需识别信息类型。四、简答题（总共4题，每题4分，共16分）1.Explainhowthepassage"ProtectingtheEnvironment"usescomparisontohighlighttheseverityofpollution.参考答案：Thepassagecomparesacleanriverwithapollutedone,showingwildlifedeclineinthelatter.Italsocontrastscurrentenvironmentalpolicieswithhistoricalfailures,emphasizingurgentaction.解析：分析需指出具体案例（河流对比、政策对比），说明对比手法如何强化主题。2.Describethreewaysthecharacterin"MyDreamJob"preparesforhiscareerasanenvironmentalscientist.参考答案：Hestudieschemistryandbiology,conductsfieldresearch,andreadsscientificjournals.解析：回答需涵盖课文中提到的具体行动，体现职业准备过程。3.Whyisthephrase"Itisimportantto..."usefulinthewritingtaskaboutpollutionsolutions?参考答案：Itclearlystatesrecommendations,suchas"Itisimportanttoplantmoretrees,"whichispersuasiveandconcise.解析：分析需结合写作场景，说明该结构如何增强建议的可读性和说服力。4.Howdoesthereading"GlobalWarming:FactorFiction?"useevidencetosupportitsargument?参考答案：ItcitesNASAdataontemperaturerise,icemeltrates,andCO₂levels,linkingthemtoobservedclimateimpacts.解析：回答需指出数据来源（NASA）、指标（温度、冰川、气体）及其关联性，体现证据链。五、应用题（总共4题，每题6分，共24分）1.Designaposter(textonly)topromotewaterconservationinschools.Includeaslogan,astatistic,andacalltoaction.参考答案：Slogan:"EveryDropCounts!"Statistic:"Turningoffatapsavesupto3litersperminute."Calltoaction:"Joinour'SaveWaterClub'toreduceschool'swaterwasteby20%thisyear!"解析：设计需包含三要素，标语需简洁有力，数据需准确，行动需具体可量化。2.Writeashortparagraph(50words)todescribehowastudentcanreduceplasticwasteathome.参考答案：Iavoidsingle-useplasticsbyusingreusablebags,bottles,andcontainers.Ialsorecycleproperlyandbuyproductsinbulktominimizepackagingwaste.Smallchangesmakeabigdifference!解析：回答需体现个人行动（购物、回收），语言简洁，符合环保主题。3.Createadialogue(60words)betweenastudentandaparentaboutparticipatinginaschoolclean-up.Student:"Mom,theschoolneedsvolunteersforthebeachclean-upnextSaturday."Parent:"Thatsoundsgreat!I'llhelpyousignup.Let'stakereusableglovesandbags."Student:"Thanks!Wecanalsobringreusablenetstocatchmoretrash."解析：对话需体现角色分工（报名、准备工具），符合真实场景，语言自然。4.Explain(70words)whytheunit'stopic"ProtectingtheEnvironm