2026年四川省苏教版高三英语第3单元课后练习

2026年四川省苏教版高三英语第3单元课后练习一、单项选择题（总共10题，每题2分，共20分）1.AccordingtothepassageinUnit3,whichofthefollowingstatementsbestdescribesthemainpurposeofthetext?Thetextdiscussestheimpactofsocialmediaonteenagers'mentalhealth,presentingbothpositiveandnegativeeffectswhilesuggestingwaystomitigateharmfulinfluences.A.Topersuadereaderstocompletelyabandonsocialmediaforthesakeofmentalwell-being.B.Toarguethatsocialmediahasnosignificantinfluenceonteenagers'psychologicaldevelopment.C.Tohighlightthenecessityofparentalguidanceinmanagingteenagers'socialmediause.D.Toadvocateforstricterregulationsonsocialmediaplatformstargetingminors.2.Theunitemphasizestheimportanceofcriticalthinkingwhenconsumingonlineinformation.Whichsentencefromthereadingmaterialwouldmostlikelysupportthisidea?Thepassageincludesanexamplewhereagroupofstudentsidentifiesmisinformationinaviralpostbyanalyzingitssourcesandlogicalinconsistencies.A."Socialmediacanhelpteenagersstayconnectedwithfriendsandfamily."B."Excessiveuseofsocialmediamayleadtosleepdeprivationandanxiety."C."Studentsshouldalwaystrustwhattheyreadonsocialmediawithoutquestioning."D."Awell-researchedarticleonmentalhealthismorecrediblethanapersonalblogpost."3.InthegrammarsectionofUnit3,theunitfocusesonthecorrectuseofthepassivevoice.Whichsentencecorrectlydemonstratesthepassivevoiceaccordingtotherulesexplainedinthetextbook?Thelessonprovidesexamplesshowinghowpassivevoiceisusedtoshiftfocusfromtheactortotheactionorobject.A."Thecommitteewilldiscusstheproposaltomorrow."B."Theproposalwillbediscussedbythecommitteetomorrow."C."Weshouldhavecompletedtheprojectlastweek."D."Theprojectwascompletedbyuslastweek."4.Theunitincludesawritingtaskwherestudentsareaskedtowriteapersuasiveessay.Whichofthefollowingoutlineswouldbemosteffectiveforstructuringtheessaybasedontheunit'sguidelines?Thetextbookadvisesorganizingtheessaywithaclearintroduction,threesupportingparagraphs,andaconclusion,eachwithlogicaltransitions.A.Introduction–personalanecdote;Body–threeunrelatedarguments;Conclusion–restatementoftheintroduction.B.Introduction–thesisstatement;Body–onelongparagraphwithmultiplepoints;Conclusion–summaryofthemainidea.C.Introduction–questiontothereader;Body–twoparagraphswithevidence;Conclusion–calltoaction.D.Introduction–backgroundinformation;Body–threeparagraphswithtopicsentences,supportingdetails,andcounterarguments;Conclusion–synthesisofideas.5.TheunitintroducestheconceptofidiomaticexpressionsinEnglish.Whichsentencecorrectlyusesanidiomfromthelistprovidedinthetextbook?Thelessonincludesidiomslike"hitthenailonthehead,""breaktheice,"and"letthecatoutofthebag."A."Sheletthecatoutofthebagduringthemeeting."B."Hehitthenailontheheadwhenhecriticizedtheplan."C."Theybroketheicebytellingfunnyjokes."D."Theteacherwasletthecatoutofthebagabouttheexam."6.Theunitcoverstheuseofarticles(a,an,the)inEnglish.Whichsentencecorrectlyusesarticlesaccordingtotherulestaughtinthelesson?Thetextbookexplainsthatarticlesareusedtospecifyorgeneralizenouns,with"the"forspecificitemsand"a/an"fornon-specificones.A."Iboughtaapplesatthestoreyesterday."B."Sheisreadingthebookonthetable."C."Aninterestingmoviewasshownatthetheaterlastnight."D."Thedogbarkedatthecat."7.Theunitincludesaspeakingactivitywherestudentsdebatetheprosandconsofsocialmedia.Whichstatementwouldbeaneffectiveargumentforthepositivesideofsocialmedia,basedonthediscussionintheunit?Thelessonencouragesbalancedperspectives,notingthatsocialmediacanfacilitateglobalcommunicationandawareness.A."Socialmediaisawasteoftimeandshouldbebannedforteenagers."B."Socialmediaonlyspreadsnegativityandmisinformation."C."Socialmediaplatformsshouldbecompletelycontrolledbygovernmentstopreventharmfulcontent."D."Socialmediaallowspeopletoconnectwithothersworldwideandaccessinformationinstantly."8.Theunitemphasizestheimportanceofproperpunctuation,particularlywithcommas.Whichsentencecorrectlyusescommasaccordingtotherulesinthetextbook?Thelessoncoverscommausageinlists,clauses,anddirectaddresses.A."Sheloveshiking,swimming,andtodance."B."Themeetingwillstartat9:00AM,onMonday."C."Hesaid,thathewouldcalllater."D."Thebook,whichwaspublishedlastyear,isverypopular."9.Theunitincludesareadingpassageaboutenvironmentalconservation.Whichsentencefromthepassagewouldmostlikelyindicatetheauthor'stone?Thepassageusespersuasivelanguage,rhetoricalquestions,andfactualevidencetoadvocateforsustainablepractices.A."Manypeoplestillbelievethatrecyclingisunnecessary."B."Recyclingcansignificantlyreducelandfillwasteandconservenaturalresources."C."Governmentsshouldimposestrictfinesonthosewhodonotrecycle."D."Somepeoplethinkthatenvironmentalissuesareexaggeratedbyactivists."10.Theunitconcludeswithareviewofverbtenses.Whichsentencecorrectlyusesthepresentperfecttenseaccordingtotheunit'sexplanation?Thetextbookclarifiesthatthepresentperfectisusedtodescribeactionsthatstartedinthepastandcontinuetothepresentorhaverecentresults.A."Shehaswrittenthreeessaysthisweek."B."Theywenttotheparkyesterday."C."Hewillfinishtheprojecttomorrow."D."Theclassstartedlastsemester."二、填空题（总共10题，每题2分，共20分）1.Theunitdiscussestheimpactofsocialmediaonteenagers'mentalhealth.Accordingtothereading,excessiveuseofsocialmediacanleadto_______and_______amongadolescents.2.ThegrammarsectionofUnit3focusesonthecorrectuseofthe_______voice,whichisoftenusedtoemphasizetheactionorobjectratherthantheactor.3.Whenwritingapersuasiveessay,itisessentialtoprovide_______and_______tosupportyourargumentseffectively.4.Theunitintroducesseveralidiomaticexpressions,suchas"tohitthenailonthehead,"whichmeansto_______exactly.5.Theuseofarticles(a,an,the)dependsonwhetherthenounis_______or_______.6.Inthespeakingactivity,studentsareencouragedtodebatetheprosandconsofsocialmedia,suchasitsabilityto_______anditspotentialtospread_______.7.Theunitemphasizestheimportanceofproperpunctuation,particularlywithcommas,whichareusedinlists,_______,anddirectaddresses.8.Thereadingpassageaboutenvironmentalconservationusespersuasivelanguageto_______sustainablepracticesamongthereaders.9.Thepresentperfecttenseisusedtodescribeactionsthatstartedinthepastandcontinuetothepresentorhave_______results.10.Theunitconcludeswithareviewofverbtenses,includingthepresentperfect,whichisdifferentfromthesimplepastbecauseitindicatesanactionthatis_______tothepresent.三、判断题（总共10题，每题2分，共20分）1.Theunitsuggeststhatsocialmediahasnosignificantimpactonteenagers'mentalhealth,asitprovidesaplatformforsocialinteractionandself-expression.2.ThepassivevoiceisalwaysincorrectinEnglishwritingandshouldbeavoidedinallacademicessays.3.Whenwritingapersuasiveessay,itissufficienttopresentonlyonesideoftheargumentwithoutaddressingcounterarguments.4.Theidiom"tobreaktheice"meanstostartaconversationinasocialsetting,makingothersfeelmorecomfortable.5.Articles(a,an,the)arenotnecessaryinEnglishbecausethemeaningofthesentencecanbeunderstoodwithoutthem.6.Thepresentperfecttenseisusedtodescribeactionsthathappenedataspecifictimeinthepastandarecompleted.7.Inthespeakingactivity,studentsshouldfocussolelyonthenegativeaspectsofsocialmediatomakeastrongargument.8.Theuseofcommasinlistsisoptionalanddoesnotaffecttheclarityofthesentence.9.Thereadingpassageaboutenvironmentalconservationiswritteninanobjectivetone,providingfactswithoutanypersonalopinions.10.Theunit'sgrammarsectiononlycoversthepresentperfecttenseanddoesnotmentionotherverbtenses.四、简答题（总共8题，每题2分，共16分）1.ExplainthedifferencebetweentheactiveandpassivevoiceinEnglishwriting.Provideoneexampleofeach.2.Describethreestrategiesforwritingapersuasiveessay,asoutlinedintheunit.3.WhatisthepurposeofusingidiomaticexpressionsinEnglish,andgiveoneexamplefromtheunit.4.Howdoestheuseofarticles(a,an,the)differinEnglish,andprovideoneexampleforeacharticle.5.Whyiscriticalthinkingimportantwhenconsumingonlineinformation,andgiveonereasonfromtheunit.6.Explainthedifferencebetweenthesimplepastandthepresentperfecttense,andprovideoneexampleofeach.7.Howcanproperpunctuation,particularlycommas,improvetheclarityofasentence?Giveoneexample.8.Whatisthemainargumentofthereadingpassageaboutenvironmentalconservation,andhowdoestheauthorsupportit?五、应用题（总共8题，每题4分，共24分）1.Writeashortparagraph(50words)usingthepassivevoicetodescribethestepstakentoorganizeaschoolevent.2.Writeapersuasiveessayoutline(100words)foratopicofyourchoice,includinganintroduction,threesupportingparagraphs,andaconclusion.3.Usethreeidiomaticexpressionsfromtheunittocreateashortstory(50words)aboutastudentwhofinallyunderstoodtheteacher'sexplanation.4.Correctthefollowingsentencebyaddingorchangingarticleswherenecessary:"Iboughtapplesandbananaatthemarketyesterday."5.Writeashortparagraph(50words)usingthepresentperfecttensetodescribeactionsyouhavetakenthisweekthatarestillrelevant.6.Debatetheprosandconsofsocialmedia(100words)bypresentingoneargumentforeachside,supportedbyevidencefromtheunit.7.Rewritethefollowingsentenceusingproperpunctuation:"Shelovestoreadbooksshelikessheoftenstaysuplate."8.Writeashortparagraph(50words)summarizingthemainargumentofthereadingpassageaboutenvironmentalconservation,highlightingtheauthor'skeypoints.【标准答案及解析】一、单项选择题1.C)Tohighlightthenecessityofparentalguidanceinmanagingteenagers'socialmediause.解析：根据课文内容，文章旨在强调家长在管理青少年社交媒体使用方面的必要性，既讨论了社交媒体的积极和消极影响，又提出了减轻有害影响的方法。选项A过于极端，选项B与文章观点相反，选项D虽然部分正确但并非文章主旨。2.D)"Awell-researchedarticleonmentalhealthismorecrediblethanapersonalblogpost."解析：文章强调批判性思维的重要性，并举例说明学生如何通过分析信息来源和逻辑不一致性来识别虚假信息。选项D体现了对信息来源的辨别能力，符合文章主旨。其他选项或与文章无关或与批判性思维无关。3.B)"Theproposalwillbediscussedbythecommitteetomorrow."解析：根据语法部分，被动语态将焦点从施动者转移到动作或对象。选项B正确使用了被动语态，符合课文规则。其他选项为主动语态或语态错误。4.D)"Introduction–thesisstatement;Body–threeparagraphswithtopicsentences,supportingdetails,andcounterarguments;Conclusion–synthesisofideas."解析：根据写作任务要求，文章应包含清晰的引言、三个支持段落（每个段落有主题句、支持细节和反论点）以及总结性结论，符合课文建议的结构。其他选项结构不完整或逻辑混乱。5.A)"Sheletthecatoutofthebagduringthemeeting."解析：该句正确使用了“letthecatoutofthebag”这一习语，意为“无意中泄露秘密”。其他选项使用不当或未使用习语。6.B)"Sheisreadingthebookonthetable."解析：根据语法规则，“the”用于特指名词，“a/an”用于泛指名词。选项B正确使用了“the”指代特定的书。其他选项存在语法错误。7.D)"Socialmediaallowspeopletoconnectwithothersworldwideandaccessinformationinstantly."解析：根据课文讨论，社交媒体可以促进全球交流和信息获取，这是文章支持积极面的观点。其他选项过于极端或与文章观点不符。8.B)"Themeetingwillstartat9:00AM,onMonday."解析：根据语法规则，逗号用于分隔时间状语。选项B正确使用了逗号。其他选项存在语法错误或逗号使用不当。9.B)"Recyclingcansignificantlyreducelandfillwasteandconservenaturalresources."解析：该句使用事实证据支持环保观点，符合文章的劝说语气。其他选项或过于主观或与文章无关。10.A)"Shehaswrittenthreeessaysthisweek."解析：根据语法部分，现在完成时用于描述过去开始并持续至今或最近有结果的动作。选项A正确使用了现在完成时。其他选项为过去时或将来时。二、填空题1.anxiety,depression解析：根据课文，过度使用社交媒体可能导致焦虑和抑郁。2.passive解析：语法部分强调被动语态的正确使用。3.evidence,examples解析：写作任务建议使用证据和例子支持论点。4.hitthemarkexactly解析：习语“hitthenailonthehead”意为“准确无误”。5.specific,general解析：文章解释了冠词的使用取决于名词是否特指或泛指。6.connectglobally,misinformation解析：课文讨论社交媒体的利弊，包括全球连接和信息误导。7.clauses解析：语法部分涵盖逗号在从句中的使用。8.promote解析：环保文章使用劝说语言促进可持续实践。9.recent解析：现在完成时用于描述最近有结果的动作。10.relevant解析：现在完成时与过去时不同，因为它与现在相关。三、判断题1.×解析：文章指出社交媒体对青少年心理健康有影响，并非没有影响。2.×解析：被动语态在学术写作中有其用途，并非总是错误。3.×解析：写作任务建议考虑反论点，而非仅呈现单方观点。4.√解析：“breaktheice”意为“打破僵局，使气氛融洽”。5.×解析：冠词在英语中是必要的，用于区分名词。6.×解析：现在完成时描述过去动作与现在的联系，而非特定时间。7.×解析：辩论应考虑双方观点，而非仅负面。8.×解析：逗号在列表中是必要的，用于分隔项目。9.×解析：文章包含个人观点和劝说语言。10.×解析：语法部分涵盖多种时态，而非仅现在完成时。四、简答题1.主动语态强调施动者，如："Shewrotetheessay."；被动语态强调动作或对象，如："Theessaywaswrittenbyher."解析：主动语态突出执行者，被动语态突出动作或结果。2.策略：明确论点、提供证据、考虑反论点、逻辑结构清晰、结论有力。解析：写作任务要求全面论点、证据支持、反论点分析、结构合理、结论总结。3.目的：使语言生动、表达地道、增强表达效果。例如："Tohitthenailonthehead"强调准确。解析：习语使表达更形象，符合英语习惯用法。4.差异："a/an"用于泛指，如："abook"；"the"用于特指，如："thebook"；无冠词用于复数或不可数名词，如："books"。解析：冠词区分名词的确定性，是英语语法核心。5.重要性：辨别信息真伪、避免误导、培养独立思考。解析：文章强调批判性思维以应对网络信息泛滥。6.差异：简单过去时描述特定时间动作，如："Hewrotetheessayyesterday"；现在完成时描述与现在相关的过去动作，如："Hehaswrittentheessay."解析：时态反映动作与现在的关系。7.作用：分隔项目、突出从句、明确