第二学期必修二unit3课后训练解析

必修二unit3课后练习评讲2025-2026学年Smartphonesandotherdigitaldevicescontrolandconsumeourattention.Thisistrueforyoungpeople.Onpublictransport,theyarecheckingsocialmediaorplayinganaddictivegameratherthansleeping.Veryfewpeoplearereadingabookorhavingaconversationwithfellowtravelers.Childrentodayaredigitalnatives.ThismeanstheyhaveneverknownlifewithoutInternetaccess.Theyhavebeenraisedonclicks.Theyjumpfromcontenttocontentwithoutasecondthought.InthewordsofthephilosopherHaninhis2021bookNonobjects,thiskindofnonstopexcitementmeansthatwequicklycometoneedanewexciter.Wegetusedtoseeingrealityasasourceofexcitersandsurprises.Westruggletofocusourattentiononanyonething.Thiswilldisturbourcognitive(认知)system.Bookscantrainthebraintodeeplyfocusitsattentionononetaskwhilemobiledevicesencourageustohangoverthesurfaceofthings,butwedonotfullygraspthem.Whenwereceiveinformationinlargeamounts,itstopsbeingmeaningful.Whenfacedwithalargeamountofinformation,ourbrainsreactbyblockingit.Butthediscardedcontentdoesnotsimplydisappearfromourminds.Itremains.Thispreventsusfromfiguringoutwhatweareinterestedin.Itlimitsourattentionlength.Mobilephoneaddictionandthewayyoungpeoplelearnarebothdirectlyconnectedtotheconceptofmindwandering.Toomuchinformationinputmakesusswitchoffandloseattention.Andthiscanbedamaginginthelongterm.Inordertorecoverattention,thebrainneedstotakeabreak.Itneedstofindtimeandspacewhereitcanbefreefromconstantnoise.Adultscanmaketheefforttofindthesemuch-neededspacestofocusattention.Children,ontheotherhand,havenotyetgainedthis.Theyruntheriskofneverrecoveringtheirattentionspans.Ifwegivechildrenandteenagersaccesstodigitaldevicesbeforetheyhavedevelopedtheseskills,theirattentionwillbefreetowander.Itwillthenbecomeharderandharderforthemtofocusonataskforthenecessaryamountoftime.1.阅读理解

1.阅读理解

Smartphonesandotherdigitaldevicescontrolandconsumeourattention.Thisistrueforyoungpeople.Onpublictransport,theyarecheckingsocialmediaorplayinganaddictivegameratherthansleeping.Veryfewpeoplearereadingabookorhavingaconversationwithfellowtravelers.电子设备消耗注意力公众交通社交媒体成瘾的几乎很少Para11.Whatisacommonsceneamongtheyoungonpublictransport?A.Theyareusuallysleeping.B.Theyarelostintheirphones.C.Theyaretalkingwitheachother.D.Mostofthemareabsorbedinreading.Smartphonesandotherdigitaldevicescontrolandconsumeourattention.Thisistrueforyoungpeople.Onpublictransport,theyarecheckingsocialmediaorplayinganaddictivegameratherthansleeping.Veryfewpeoplearereadingabookorhavingaconversationwithfellowtravelers.commonscene常见的场景publictransportpublictransportbelostin=beabsorbedin沉迷于Bpara2Childrentodayaredigitalnatives.ThismeanstheyhaveneverknownlifewithoutInternetaccess.Theyhavebeenraisedonclicks.Theyjumpfromcontenttocontent

withoutasecondthought.InthewordsofthephilosopherHaninhis2021bookNonobjects,thiskindofnonstopexcitementmeansthatwequicklycometoneedanewexciter.Wegetusedtoseeingrealityasasourceofexcitersandsurprises.Westruggleto

focusourattentiononanyonething.Thiswilldisturbourcognitive(认知)system.2.WhatdoesHanthinkoftoomuchclickingsmartphones?A.Itreducesourabilitytofocusonsomething.B.Itweakensourneedforfunimmediately.C.Itincreasesourinterestintraditionalmedia.D.Itenablesustoseerealityasasourceofsurprises.clickingclicksraise抚养，筹集，提升从内容到内容不假思索刺激物习惯一种……的来源努力做某事关注干扰reduce减少weaken减弱increase增加Apara3Bookscantrainthebraintodeeplyfocusitsattentionononetaskwhilemobiledevicesencourageustobutwedonotfullygraspthem.Whenwereceiveinformationinlargeamounts,itstopsbeingmeaningful.Whenfacedwithalargeamountofinformation,ourbrainsreactbyblockingit.Butthediscardedcontentdoesnotsimplydisappearfromourminds.Itremains.Thispreventsusfromfiguringoutwhatweareinterestedin.Itlimitsourattentionlength.Mobilephoneaddictionandthewayyoungpeoplelearnarebothdirectlyconnectedtotheconceptofmindwandering.Toomuchinformationinputmakesusswitchoffandloseattention.Andthiscanbedamaginginthelongterm.训练大脑移动设备理解v.翻译v.阻止remains留下figureout想清楚limitattentionlengthconnectedto和……有关mindwandering分心不再关注长期Whenfacedwithalargeamountofinformation,ourbrainsreactbyblockingit.

Butthediscardedcontentdoesnotsimplydisappearfromourminds.ItremainsToomuchinformationinputmakesusswitchoffandloseattention.Andthiscanbedamaginginthelongterm.3.WhatisParagraph3mainlyabout?A.Mobiledeviceshelpustofullyunderstandbooks.B.Smartphoneaddictionstopsusformingalastingattention.C.Beingexposedtosmartphoneinformationblocksourbrain.D.Theinformationwegetwilldisappearsoonfromourminds.B大脑阻挡信息不是信息阻碍大脑Inordertorecoverattention,thebrainneedstotakeabreak.Itneedstofindtimeandspacewhereitcanbefreefromconstantnoise.Adultscanmaketheefforttofindthesemuch-neededspacestofocusattention.Children,ontheotherhand,havenotyetgainedthis.Theyruntheriskof

neverrecoveringtheirattentionspans.Ifwegivechildrenandteenagersaccesstodigitaldevicesbeforetheyhavedevelopedtheseskills,theirattentionwillbefreetowander.Itwillthenbecomeharderandharderforthemtofocusonataskforthenecessaryamountoftime.冒着……的风险注意广度渠道关注Whereisthepassageprobablytakenfrom?A.Asciencemagazine.B.AbookreviewC.AbiologytextbookD.Asmartphonead.科学杂志书评生物书广告AAnewtrendcalled"praisegroups"or"in-need-of-praise"chatgroupshasbecomepopularonChinesesocialmedia.InChineseculture,wheremodesty(谦逊)isvalued,openlyseekingandgivingpraiseisuncommon.Thesechatgroupsprovideaplatformforpeopletoreceivecompliments(赞扬)andencouragement,whichareoftenlackingintheirdailylives.Tojoinapraisegroup,userscanpayafeeone-commercesites,startingat50yuanforfiveminutesofcompliments.Thegroupmemberswillthenshowthepersonwithpraiseandkindwords.Thecomplimentscanbedesignedforafriendorlovedoneaswell.Participantshavefoundthatbeingpraisedbystrangerscanhelplifttheirspiritsandimprovetheirself-confidence.Forexample,MengZha,auniversitystudent,triedtheserviceandfounditamusingandhelpful.Shereceivedcomplimentsonherappearanceandevensomecontentfrompopularsongs.MsMengcouldn'thelpbutlaughatthecomplimentsandexpressedherdesiretopostsuchhigh-qualitypraiseinthefuture.PraisegroupshaveappearedasawayforpeopleinChinatolookforandreceivecomplimentsandencouragementthatmaybelackingintheirdailylives.Itprovidesapositiveandupliftingexperienceforparticipants,improvingasenseofhappinessandself-worth.Thosewhosupportthegroupsseethemasamethodofdealingwithextremelybadmoods(情绪)whichareoftenrelatedtothingshappeningontheInternet."Atfirst,thepurposeofthisgroupistomakeuslearntopraiseothersandacceptothers'praiseconfidently.Herewecandropeverything,anduseourhearttopraiseandsupportothers,"onemembersaid."Butthelifejourneyislongandtherearesomeunexpectedsituationsthatwecanonlydependonourselvestofacewhenthereisnooneouttheretoofferhelp."p1What现象：一种名为“夸夸群”或“求夸聊天群”的新潮流在中国社交媒体上走红。P2-3.How做法：想要加入夸夸群，用户可以在电商平台付费，5分钟夸赞服务起价50元。P4-5.why影响：“夸夸群”的出现，为中国人提供了一个获取赞美与鼓励的途径，而这些往往是他们在日常生活中所欠缺的。但人生旅途漫长，总会出现一些始料未及的状况。当无人伸出援手时，我们只能依靠自己去面对。5.Whatisthepurposeofpraisegroups?A.Tomakeordinarypeoplepopular.B.Tosolvepeople'sproblems.C.Tosharecommoninterests.D.Tomakeothershappyandconfident.Anewtrendcalled"praisegroups"or"in-need-of-praise"chatgroupshasbecomepopularonChinesesocialmedia.InChineseculture,wheremodesty(谦逊)isvalued,openlyseekingandgivingpraiseisuncommon.Thesechatgroupsprovideaplatformforpeopletoreceivecompliments(赞扬)andencouragement,whichareoftenlackingintheirdailylives.Tojoinapraisegroup,userscanpayafeeone-commercesites,startingat50yuanforfiveminutesofcompliments.Thegroupmemberswillthenshowthepersonwithpraiseandkindwords.Thecomplimentscanbedesignedforafriendorlovedoneaswell.Participantshavefoundthatbeingpraisedbystrangerscanhelplifttheirspiritsandimprovetheirself-confidence.5D鼓励他们D普通的6.WhatcanwelearnaboutMengZhafromParagraph3?A.Shewasnotstrongenough.B.Shewassatisfiedwiththeservice.C.Shewasunderworkingstress.D.Shewasagiftedsingerinherarea.Forexample,MengZha,auniversitystudent,triedtheserviceandfounditamusingandhelpful.Shereceivedcomplimentsonherappearanceandevensomecontentfrompopularsongs.MsMengcouldn'thelpbutlaughatthecomplimentsandexpressedherdesiretopostsuchhigh-qualitypraiseinthefuture.愉快的和有帮助的外表忍不住渴望满意服务大学生没工作gifted有天赋的B单击此处编辑母版标题样式7.Whatdoestheunderlinedword"uplifting"inParagraph4mean?A.Surprisingandrare.B.Excitingandcheerful.C.Sadandunforgettable.D.Worryinganduncomfortable.PraisegroupshaveappearedasawayforpeopleinChinatolookforandreceivecomplimentsandencouragementthatmaybelackingintheirdailylives.Itprovidesapositiveandupliftingexperienceforparticipants,improvingasenseofhappinessandself-worth.惊喜的

稀有的兴奋的

开心的悲伤的

难忘的担心的

不舒服的B8.Howdoesthegrouppraiseothersinthelastparagraphaccordingtothemember?A.Sincerely.B.Easily.C.Slightly.D.Informally.Thosewhosupportthegroupsseethemasamethodofdealingwithextremelybadmoods(情绪)whichareoftenrelatedtothingshappeningontheInternet."Atfirst,thepurposeofthisgroupistomakeuslearntopraiseothersandacceptothers'praiseconfidently.Herewecandropeverything,anduseourhearttopraiseandsupportothers,"onemembersaid."Butthelifejourneyislongandtherearesomeunexpectedsituationsthatwecanonlydependonourselvestofacewhenthereisnooneouttheretoofferhelp."真诚地轻微地非正式的AJustfivemonthsearlier,IwouldneverhavethoughtthatIwouldactinaplayinfrontofsomanypeople.Withouttheencouragementofmy1_____________,MrsSather,Imightneverhavefoundthatcourage.Iwasanextremely2______________girl.Itjustwasn'tinmypersonalitytomakeasoundinpublic.Iusedto3_______________myselfinmywriting.MrsSatheralsoencouragedmetowritemore.Ithinkshewasthefirstpersontoseemyreal4___________________andknowhowtohelpme.A.friend朋友B.teacher老师C.mother妈妈D.classmate同学A.shy害羞的B.weak虚弱的C.clever聪明的D.pretty漂亮的A.put放置B.take带走C.hide隐藏D.turn转动A.problem问题B.goal目标C.challenge挑战D.advantage优势Onedayshetoldusthatweweregoingto5__________aplay—TheWizardofOz."IneedsomeonetoplaytheleadpartofDorothy,"shesaid.Alotofhandsshotup,6____________,ofcourse,wasnotoneofthem.5.A.puton上演/穿上B.makeup编造/化妆C.putup张贴/搭建D.focuson聚焦于6.A.Ours我们的B.Hers她的C.Mine我的D.Theirs他们的Afterschool,MrsSathersaidtome,"Dallas,Iwas7——————youdidn'traiseyourhand.Youaregreatatmemorizingthings,andyouhavesuchasweetpersonality.I'msureyouare8——————forDorothy!IhaveyouinmindforDorothyandwantyoutowritetheplay,too!Ifyou9_______don'twantto,though,Iwon'tmakeyou.It'syour10————————."7A.excited兴奋的B.happy开心的C.afraid害怕的D.surprised惊讶的8A.anxious焦虑的B.sweet甜美的/亲切的C.perfect完美的/适合的D.awkward尴尬的9A.officially正式地B.really真正地C.finally最终D.obviously明显地10A.turn轮流/机会B.choice选择C.luck运气D.responsibility责任Encouragedbyher11______,IsuddenlywantedtoseewhatIreallycoulddo.I12_______therole.Afterfivemonthsofpracticing,linememorizing,andcostume(表演服)designing,wewere13_________.Attheendoftheplay,whenmyteacherandmyclassmatesstoodupand14________,Iknewtheywerenotjustcongratulatingmeonmyperformance(演出)thatnight,butthesuccessthattheyknewwouldcomeinlateryearsbecauseofmynewlyfound15_____________."A.words话语B.stories故事C.adventures冒险D.lectures讲座A.created创造B.refused拒绝C.accepted接受D.remembered记得A.ready准备好的B.successful成功的C.famous著名的D.careful小心的A.left离开B.struggled挣扎C.cried哭泣D.cheered欢呼A.skill技能B.confidence自信C.interest兴趣D.hobby爱好阅读七选五（每小题5分，共25分）

、HowtoAvoidanInternetAddictionItmayseemlikeeveryonesurfsthewebthesedays,butifyoucan'thaveinterestinotheraspectsofyourlifebecauseoftheInternet,youmaybeonyourwaytoanInternetaddiction.Youmightfearyou'retheonlyonewhohasexperiencedthatfeeling.1.____________Luckily,therearesomewaystoavoidinglifeinfrontofthecomputer.2.____________MoreandmorepeopleintheworldarebecomingaddictedtotheInternet,andyouarenottheonlyonewiththisproblem.Sodonotbeembarrassed.JustbebravetoadmitwhatyouareonyourwaytoanInternetaddiction.Andthenfindotherswiththesameproblemandhelpeachotherbeatit.Setasidelimitedtimeforcomputeruse.Makesurenottoturnitontoomanytimesaweek.Ifyouhavealaptop,makesuretoputitsomewherethatyoucanrememberbutnotsomewherethatyouseeeveryday.Trykeepingthelidclosedwhenyouarenotusingit.3.______________________-IfyouhaveadesktopPC,trynottogonearitorputsomethingoveritlikeasheet.Callpeopleinsteadofsendinginstantmessagesortexts.Ifyouarefreeonweekends,callfriendsandaskthemtogooutsidetodosomethingyouenjoy,likeplayingasport.Thiswilltakeyourmindoffthecomputer.4.____________Useanalarmclockortimer(计时器).Beforeusingyourcomputer,decideonatimelimitsuchas30minutes.Settheclockortimerandmakesurethatyougetawayfromthecomputerwhenthetimeisup.Alternatively,createashutdowntimeronyourdesktop.5.________________A.Beingaddictedtoitisquitenormal.B.Admityouareatriskofanaddiction.C.Thetruth,though,isthatit'squitecommontobeanInternetaddict.D.Whenthecomputerisoutofsight,youarelesslikelytouseit.E.Thiscanbeprogrammedto

shutdownyourcomputerafterthesettime.F.ThiswillstopyoufromusingtheInternetagainorgoingontoanotherpage.G.Ifyouhaveaproblemonweekdays,phoneyourfriendsoraskforhelpinperson.it对……上瘾处于……的风险youthoughit看不见计划关闭This设定时间This页面Ifyou亲自Itmayseemlikeeveryonesurfsthewebthesedays,butifyoucan'thaveinterestinotheraspectsofyourlifebecauseoftheInternet,youmaybeonyourwaytoanInternetaddiction.Youmightfearyou'retheonlyonewhohasexperiencedthatfeeling.1.____________Luckily,therearesomewaystoavoidinglifeinfrontofthecomputer.A.Beingaddictedtoitisquitenormal.B.Admityouareatriskofanaddiction.C.Thetruth,though,isthatit'squitecommontobeanInternetaddict.D.Whenthecomputerisoutofsight,youarelesslikelytouseit.E.Thiscanbeprogrammedto

shutdownyourcomputerafterthesettime.F.ThiswillstopyoufromusingtheInternetagainorgoingontoanotherpage.G.Ifyouhaveaproblemonweekdays,phoneyourfriendsoraskforhelpinperson.1.C2.____________MoreandmorepeopleintheworldarebecomingaddictedtotheInternet,andyouarenottheonlyonewiththisproblem.Sodonotbeembarrassed.JustbebravetoadmitwhatyouareonyourwaytoanInternetaddiction.Andthenfindotherswiththesameproblemandhelpeachotherbeatit.A.Beingaddictedtoitisquitenormal.B.Admityouareatriskofanaddiction.C.Thetruth,though,isthatit'squitecommontobeanInternetaddict.D.Whenthecomputerisoutofsight,youarelesslikelytouseit.E.Thiscanbeprogrammedto

shutdownyourcomputerafterthesettime.F.ThiswillstopyoufromusingtheInternetagainorgoingontoanotherpage.G.Ifyouhaveaproblemonweekdays,phoneyourfriendsoraskforhelpinperson.打败2.BSetasidelimitedtimeforcomputeruse.Makesurenottoturnitontoomanytimesaweek.Ifyouhavealaptop,makesuretoputitsomewherethatyoucanrememberbutnotsomewherethatyouseeeveryday.Trykeepingthelidclosedwhenyouarenotusingit.3.______________________-IfyouhaveadesktopPC,trynottogonearitorputsomethingoveritlikeasheet.A.Beingaddictedtoitisquiteno