2026年浙江省部编版高中三年级英语上册第7单元课后练习

2026年浙江省部编版高中三年级英语上册第7单元课后练习一、单项选择题（总共10题，每题2分，共20分）1.AccordingtothepassageinUnit7,whichofthefollowingstatementsbestdescribesthemainpurposeofthetext?Thepassagediscussestheimpactofsocialmediaonteenagers'mentalhealth,presentingbothpositiveandnegativeeffectswhilesuggestingwaystousesocialmediaresponsibly.A.Topersuadereaderstocompletelyabandonsocialmediabecauseofitsharmfuleffects.B.Toentertainreaderswithhumorousstoriesaboutteenagersusingsocialmedia.C.Toinformreadersaboutthemixedeffectsofsocialmediaandprovidepracticaladvice.D.Tocriticizesocialmediacompaniesfornotdoingenoughtoprotectyoungusers.2.InthegrammarsectionofUnit7,whichstructureismostcommonlyusedtoexpresshypotheticalsituationsinthepresentorfuture?Theunitfocusesonconditionalsentences,particularlythesecondandthirdconditions.A.Presentperfectcontinuoustense.B.Futuresimpletensewith"will."C.Secondconditional(e.g.,"IfIhadmoretime,Iwouldstudymore").D.Pastperfecttense.3.ThevocabularyexerciseinUnit7includestheword"anxieties."Whatisthebestwaytodefinethisterminthecontextofthepassageaboutstress?Thepassageuses"anxieties"todescribepersistentworries.A.Atemporaryfeelingofexcitement.B.Aphysicalsymptomofcold.C.Frequentandongoingworries.D.Asuddenloudnoise.4.AccordingtothelisteningtaskinUnit7,whatdoesthespeakersuggestasasolutiontoreducescreentime?Thespeakerrecommendssettingspecifictimelimitsforusingdevices.A.Buyinganewsmartphonewithmorefeatures.B.Usingsocialmediaonlyduringschoolhours.C.Avoidingtechnologyaltogether.D.Limitingdeviceusetoonehourperday.5.InthespeakingactivityofUnit7,studentsareaskedtodebatewhethersocialmediaismorebeneficialorharmful.Whichargumentwouldbemosteffectiveforthe"beneficial"side?Thedebaterequirescitingexamplesofhowsocialmediahelpsineducationandcommunication.A."Socialmediaisharmfulbecauseitcausescyberbullying."B."Socialmediaisneutral;itdoesn’taffectpeoplemuch."C."Socialmediaconnectspeoplegloballyandprovideslearningopportunities."D."Socialmediamakespeoplemorelonely."6.ThereadingpassageinUnit7mentionsastudyaboutteenagersandsocialmedia.Whatdoesthestudyrevealabouttherelationshipbetweenscreentimeandsleepquality?Thestudyshowsanegativecorrelation.A.Morescreentimeleadstobettersleep.B.Screentimehasnoeffectonsleep.C.Lessscreentimeimprovessleepquality.D.Sleepqualitydependsonthetypeofcontentconsumed.7.InthewritingtaskofUnit7,studentsmustwritealettertoalocalnewspaperaboutthedangersofsocialmediaaddiction.Whichopeningsentencewouldbemostappropriate?Thelettershouldclearlystatetheproblem.A."Deareditor,Iloveplayinggamesonmyphone."B."Totheeditor,socialmediaisfunanduseful."C."Deareditor,manyteenagersarespendingtoomuchtimeonsocialmedia,whichisharmfultotheirhealth."D."Hello,Ithinksocialmediaisgreatformakingfriends."8.Theunittestsstudents'abilitytousepassivevoicecorrectly.WhichsentencecorrectlyusesthepassivevoiceaccordingtoUnit7?Theunitemphasizesthestructure"be+pastparticiple."A."Thenewrulesweremadebystudentslastweek."B."Theywillmaketherulesnextweek."C."Therulesarebeingmadenow."D."Imadetherulesyesterday."9.Intheunit'sculturalsection,itdiscusseshowdifferentcountriesusesocialmediadifferently.Whichcountryismentionedashavingthehighestsocialmediausagepercapita?ThepassagehighlightstheU.S.asanexample.A.Japan.B.India.C.Brazil.D.TheUnitedStates.10.Theunit'sspeakingassessmentincludesarole-playwherestudentsactasparentsadvisingtheirchildrenaboutsocialmediause.Whatshouldtheparentsayinresponsetothechild'srequesttostayonsocialmedialate?Theparentshouldsetareasonablelimit.A."Yes,youcanstayonaslongasyouwant."B."No,youmuststopusingsocialmediaimmediately."C."Sure,butnomorethanonehourafterdinner."D."Idon’tcareifyoustayonlate."二、填空题（总共10题，每题2分，共20分）1.ThepassageinUnit7arguesthatsocialmediacanbebotha______anda______forteenagers,dependingonhowitisused.(Answer:tool,problem)2.Inthegrammarsection,theunitexplainshowtoformthesecondconditionalusingthestructure:if+presentsimple,____________.(Answer:would+baseverb)3.ThevocabularylistinUnit7includestheword"addictive,"whichmeanssomethingthatis______difficulttostopdoing.(Answer:extremely)4.Accordingtothelisteningexercise,thespeakersuggeststhatteenagersshould____________totheirscreentimetoimprovetheirmentalhealth.(Answer:setlimitson)5.ThespeakingactivityinUnit7requiresstudentsto____________whethersocialmediaismorebeneficialorharmful,providingreasonsfortheiropinion.(Answer:debate)6.Thereadingpassagementionsastudyshowingthatexcessivesocialmediauseislinkedto____________inteenagers.(Answer:poorsleepquality)7.Inthewritingtask,studentsmustwritea______toalocalnewspapertoexpresstheirconcernsaboutsocialmediaaddiction.(Answer:letter)8.Theunitteachesstudentshowtousethepassivevoicecorrectly,suchasinthesentence:"Thenewrules______bystudentslastweek."(Answer:weremade)9.TheculturalsectionofUnit7discusseshowdifferentcountriesusesocialmedia,withtheU.S.mentionedashavingthe____________ofsocialmediausagepercapita.(Answer:highestrate)10.Inthespeakingassessment,studentsactasparentsadvisingtheirchildrento____________onsocialmediatoavoidnegativeeffects.(Answer:limittimespent)三、判断题（总共10题，每题2分，共20分）1.ThepassageinUnit7suggeststhatsocialmediahasnonegativeeffectsonteenagers'mentalhealth.(False)Explanation:Thepassagediscussesbothpositiveandnegativeeffects,acknowledgingthatexcessiveusecanbeharmful.2.Thesecondconditionalisusedtotalkaboutrealandpossiblefuturesituations.(False)Explanation:Thesecondconditionalisusedforhypotheticalsituations,notrealones.3.Theword"anxiety"inthepassagemeansfeelinghappyandexcited.(False)Explanation:"Anxiety"referstopersistentworryorstress,nothappiness.4.ThelisteningexerciseinUnit7recommendsusingsocialmediaasmuchaspossibletostayconnectedwithfriends.(False)Explanation:Thespeakersuggestslimitingscreentimetoimprovementalhealth.5.Inthespeakingactivity,studentsshouldonlyarguethatsocialmediaisharmfultoavoidcontroversy.(False)Explanation:Thedebaterequirespresentingbothsideswithvalidreasons.6.Thestudymentionedinthereadingpassageshowsthatmorescreentimeimprovessleepquality.(False)Explanation:Thestudyrevealsanegativecorrelationbetweenscreentimeandsleepquality.7.Thewritingtaskasksstudentstowriteapoemaboutsocialmediainsteadofaletter.(False)Explanation:Thetaskrequireswritingaformallettertoanewspaper.8.ThepassivevoiceisneverusedinacademicwritingaccordingtoUnit7.(False)Explanation:Theunitteacheshowtousethepassivevoicecorrectlyinformalwriting.9.TheU.S.ismentionedashavingthelowestsocialmediausagepercapitaintheculturalsection.(False)Explanation:TheU.S.ismentionedashavingthehighestrateofsocialmediausage.10.Inthespeakingassessment,parentsshouldencouragechildrentostayonsocialmediaaslongastheywant.(False)Explanation:Parentsshouldsetreasonablelimitsonsocialmediause.四、简答题（总共8题，每题2分，共16分）1.Whatarethetwomainargumentspresentedinthedebateaboutsocialmedia?Answer:Thedebatepresentstwomainarguments:socialmediaisbeneficialbecauseitconnectspeoplegloballyandprovideslearningopportunities;andsocialmediaisharmfulbecauseitcanleadtoaddictionandmentalhealthissues.2.Howdoesthesecondconditionaldifferfromthefirstconditional?Answer:Thesecondconditionalisusedforhypotheticalsituationsinthepresentorfuture(e.g.,"IfIhadmoretime,Iwouldstudymore"),whilethefirstconditionalisusedforrealandpossiblefuturesituations(e.g.,"Ifitrainstomorrow,wewillcancelthepicnic").3.Whatdoestheword"anxieties"meaninthecontextofthepassageaboutstress?Answer:"Anxieties"referstofrequentandongoingworriesorfearsthataffectaperson'sdailylife.4.Accordingtothelisteningexercise,whataretwowaystoreducescreentime?Answer:Twowaystoreducescreentimearesettingspecifictimelimitsforusingdevicesandavoidingtechnologyduringmealsorbedtime.5.Whyisitimportanttousethepassivevoiceinacademicwriting?Answer:Thepassivevoiceisimportantinacademicwritingbecauseitfocusesontheactionorresultratherthantheperformer,makingthetextmoreformalandobjective.6.WhatdoestheculturalsectionofUnit7teachaboutsocialmediausageindifferentcountries?Answer:Theculturalsectionteachesthatdifferentcountrieshavevaryinglevelsofsocialmediausage,withtheU.S.havingthehighestratepercapita.7.Howshouldstudentsstructuretheirlettertothelocalnewspaperaboutsocialmediaaddiction?Answer:Studentsshouldstartwithanintroductionstatingtheproblem,provideevidenceorexamplesofsocialmediaaddiction,andconcludewithacalltoactionorsuggestionforsolutions.8.Whatshouldparentsdotohelptheirchildrenusesocialmediaresponsibly?Answer:Parentsshouldsetreasonablelimitsonscreentime,encourageofflineactivities,andtalktotheirchildrenaboutthepotentialrisksofexcessivesocialmediause.五、应用题（总共8题，每题4分，共24分）1.Writeashortparagraph(50words)explainingwhysocialmediacanbebothatoolandaproblemforteenagers.Answer:Socialmediaisatoolbecauseithelpsstudentsconnectwithfriends,accessinformation,andlearnnewthings.However,itcanbeaproblemifusedexcessively,leadingtoaddiction,poorsleep,andanxiety.Balanceiskey.2.Rewritethefollowingsentenceusingthepassivevoice:"Theteacherexplainedtherulestothestudents."Answer:"Theruleswereexplainedtothestudentsbytheteacher."3.Completethesecondconditionalsentence:"IfIhadmorefreetime,______."Answer:"Iwouldreadmorebooks."4.Writeashortdialogue(60words)betweenaparentandateenageraboutsocialmediause.Parent:"Howmuchtimeareyouspendingonsocialmediatoday?"Teenager:"IthinkIspentabouttwohours."Parent:"That’stoomuch.Trytolimitittoonehourtomorrow."Teenager:"Okay,Iwill."5.Explainthedifferencebetween"anxiety"and"worry"inyourownwords.Answer:"Worry"isatemporaryfeelingaboutafutureproblem,while"anxiety"isamorepersistentandintensefearthatcaninterferewithdailylife.6.Writeashortparagraph(50words)describinghowtheU.S.usessocialmediadifferentlyfromanothercountry(e.g.,Japan).Answer:IntheU.S.,socialmediausageishigh,withplatformslikeInstagramandTikTokbeingverypopular.InJapan,socialmediauseismoremoderate,andpeopleoftenuseitforprofessionalnetworkingratherthanentertainment.7.Createalistofthreetipsforparentstohelptheirchildrenusesocialmediaresponsibly.Answer:1.Settimelimitsfordeviceuse.2.Encourageofflineactivities.3.Talkopenlyaboutonlinesafetyandmentalhealth.8.Writeashortletter(60words)toalocalnewspaperabouttheimportanceoflimitingsocialmediause.Deareditor,Iamconcernedabouthowmuchtimeteenagersspendonsocialmedia.Itcanleadtopoorsleep,anxiety,andaddiction.Isuggestparentssetlimitsandencourageabalancedlifestyle.Let’sprioritizeourchildren’swell-being.【标准答案及解析】一、单项选择题1.CExplanation:Thepassagediscussesbothpositiveandnegativeeffectsandprovidesadvice,makingCthecorrectanswer.2.CExplanation:Thesecondconditional(e.g.,"IfIhadmoretime,Iwouldstudymore")isusedforhypotheticalsituations,whichalignswiththeunit’sfocus.3.CExplanation:"Anxieties"referstoongoingworries,nottemporaryexcitementorphysicalsymptoms.4.DExplanation:Thespeakerrecommendslimitingdeviceusetoonehourperday,makingDthecorrectanswer.5.CExplanation:Cprovidesastrongargumentforthebeneficialsidebycitingglobalconnectionandlearningopportunities.6.CExplanation:Thestudyshowsthatlessscreentimeimprovessleepquality,makingCcorrect.7.CExplanation:Cclearlystatestheproblemofsocialmediaaddiction,makingitthemostappropriateopening.8.AExplanation:Acorrectlyusesthepassivevoice("weremade"),whileB,C,andDareactivevoice.9.DExplanation:TheU.S.ismentionedashavingthehighestsocialmediausagepercapita.10.CExplanation:Csetsareasonablelimit,whileA,B,andDareeithertoolenientortoostrict.二、填空题1.tool,problemExplanation:Thepassagediscussesbothpositive(tool)andnegative(problem)effects.2.would+baseverbExplanation:Thesecondconditionaluses"if+presentsimple,would+baseverb."3.extremelyExplanation:"Addictive"meanssomethingisverydifficulttostopdoing.4.setlimitsonExplanation:Thespeakerrecommendslimitingscreentimetoimprovementalhealth.5.debateExplanation:Thedebaterequirespresentingbothsideswithreasons.6.poorsleepqualityExplanation:Thestudylinksexcessivesocialmediausetopoorsleep.7.letterExplanation:Thetaskrequireswritingaformallettertoanewspaper.8.weremadeExplanation:Thepassivevoiceis"be+pastparticiple."9.highestrateExplanation:TheU.S.hasthehighestrateofsocialmediausagepercapita.10.limittimespentExplanation:Parentsshouldadvisechildrentolimitsocialmediause.三、判断题1.FalseExplanation:Thepassagediscussesbothpositiveandnegativeeffects.2.FalseExplanation:Thesecondconditionalisforhypotheticalsituations,notrealones.3.FalseExplanation:"Anxiety"meanspersistentworry,nothappiness.4.FalseExplanation:Thespeakerrecommendslimitingscreentime.5.FalseExplanation:Thedebaterequirespresentingbothsides.6.FalseExplanation:Thestudyshowsanegativecorrelationbetweenscreentimeandsleepquality.7.FalseExplanation:Thetaskrequireswritingaletter,notapoem.8.FalseExplanation:Thepassivevoiceisusedinacademicwriting.9.FalseExplanation:TheU.S.hasthehighestrateofsocialmediausage.10.FalseExplanation:Parentsshouldsetreasonablelimitsonsocialmediause.四、简答题1.Thedebatepresentstwomainarguments:socialmediaisbeneficialbecauseitconnectspeoplegloballyandprovideslearningopportunities;andsocialmediaisharmfulbecauseitcanleadtoaddictionandmentalhealthissues.2.Thesecondconditionalisusedforhypotheticalsituationsinthepresentorfuture(e.g.,"IfIhadmoretime,Iwouldstudymore"),whilethefirstconditionalisusedforrealandpossiblefuturesituations(e.g.,"Ifitrainstomorrow,wewillcancelthepicnic").3."Anxieties"referstofrequentandongoingworriesorfearsthataffectaperson’sdailylife.4.Twowaystoreducescreentimearesettingspecifictimelimitsforusingdevicesandavoidingtechnologyduringmealsorbedtime.5.Thepassivevoiceisimportantinacademicwritingbecauseitfocusesontheactionorresultratherthantheperformer,makingthetextmoreformalandobjective.6.Thecult