Unit 4 Topic 3【A卷（基础训练）】-2023-2024学年八年级英语上册单元速记•巧练（仁爱版）

第页Unit4OurWorldTopic3TheInternetmakestheworldsmaller.【话题测试·基础卷】（满分100分，时间80分钟）I.单项选择。（共15小题，每小题1分，计15分。）1．Scientistsstarted________theInternetinthe1960s.A．tostudy B．study C．tostudying D．studied2．Youcanfindnewfriends________theInternet.A．in B．on C．under D．at3．________fineweather!Let'sgooutforawalk.A．How B．Whata C．What D．Howa4．Remember________thelightwhenyouleave.A．close B．toclose C．turningoff D．toturnoff5．—What________you________thistimeyesterday?

—Iwasreadingabook.A．were,doing B．was,doing C．is,doing D．did,do6．Thereis____withmycomputer.Itdoesn’twork.A．nothingwrong B．anythingwrongC．wrongsomething D．somethingwrong7．Lookout!Thetrafficismovingfast.Itis________dangerous________crossthestreet.A．very,to B．so,that C．much,to D．too,to8．—Let’shavearest,shallwe?

—Notnow.Idon’twanttostop________theletteryet.A．write B．towrite C．writing D．andwrite9．Thisbookis_______hard________me_______understand.A．too,of,to B．too,for,too C．to,with,too D．too,for,to10．Canyou________theEnglishwords________Chinese?A．change;into B．get;into C．go;into D．make;into11．Hewasnotsure________thatwasagoodidea.A．when B．where C．if D．what12．Wehada________holidaylastweek.A．threedays B．three-day C．three-days D．threeday13．—DoyouthinkJimwillpasstheChineseexam?

—Sure.He________alotoftimeonit.A．took B．cost C．paid D．spent14．Theseclothesarefrom________.A．1950s B．the1950s C．the1950s’ D．1950s’15．Hewalked________fast________wecouldn’tcatchupwithhim.A．so,that B．enough,to C．such,that D．too,toII.完形填空。（共10小题，每小题1.5分，计15分。）ComputershadbeenaroundforyearswhenBillGateswasgrowingup.Butveryfewpeopleknewmuchaboutthem.Peoplethoughtofcomputersasbigmachinesthatonlyafewpeoplewere16enoughtounderstand.Atthattimecomputerswereverylarge.Somepeople,likeBillGatesandhisfriends,were17thecomputer.PaulAllen,RicWeiland,andKentEvanswerehisbestfriendsduringhighschool.They18timelearningaboutcomputersandhowtheyworked.Theythoughtthatcomputersweregoingtobecome19inthefuture.GatesbegantostudyatHarvardUniversityinthefallof1973.TherehemetSteveBallmer.20asastudentatHarvardin1975,GatesreadamagazinecalledPopularElectronics.Therewasapassageaboutsystems（系统）incomputers.Themakerswere21anew,smallersystem.GatestoldthecompanythatheandAllenwouldmake22asystem.GatesandAllenbeganto23.Theyfinishedtheprogramanditworked.ThenGatesleftHarvardandmovedtoNewMexico.InNovember1975,theMicrosoftCompanywasbuilt.BillGatesandhisfriendsweredifferentfromothersevenattheirearlyages.Theyhadaloveofmath.Theyhadaloveoftechnology.Theyweren’tafraidto24.Theytookrisks.NowBillGatesisveryrich.Heisgivingbacktotheworld25hischarities（慈善）.16．A．old B．clever C．strong17．A．interestedin B．tiredof C．boredwith18．A．took B．paid C．spent19．A．difficult B．easy C．important20．A．If B．While C．Because21．A．seeing B．serving C．lookingfor22．A．either B．so C．such23．A．work B．leave C．practice24．A．study B．enjoy C．dream25．A．of B．through C．inIII.阅读理解。（共20小题，每小题2分，计40分。）AOnlineadvertisingisthemeansofsellingaproductontheInternet.WiththearrivaloftheInternet,thebusinessworldhasbecomedigitalized(数字化的)andpeoplepreferbuyingthingsonline,whichiseasierandfaster.Onlineadvertisingisalsoknownase-advertising.Itoffersagreatvarietyofservices,whichcannotbeofferedbyanyotherwayofadvertising.Onemajorbenefitofonlineadvertisingistheimmediatespreadofinformationthatisnotlimitedbygeographyortime.Onlineadvertisingcanbevieweddayandnightthroughouttheworld.Besides,itreducesthecostandincreasestheprofitofthecompany.Smallbusinessesespeciallyfindonlineadvertisingcheapandeffective.Theycanfocusontheiridealcustomersandpayverylittlefortheadvertisements.Inaword,onlineadvertisingisacheapandeffectivewayofadvertising,whosesuccesshassofarfullyproveditsgreatpotential(潜力).26．Accordingtothefirstparagraph,buyingthingsonlineismore________.A．convenient B．fashionable C．traditional D．difficult27．Comparedwithanyotherwayofadvertising,onlineadvertising________.A．attractsmorecustomers B．displaysmoresamples(样品)C．offersmoreservices D．reducesmoreprofits28．WhichofthefollowingstatementsisTRUEaboutonlineadvertising?A．Ithastakentheplaceoftraditionaladvertising.B．ItwillmaketheInternettechnologymoreefficient.C．Itcanhelpsellthelatestmodelsofdigitalizedproducts.D．Itcanspreadinformationwithoutbeinglimitedbytime.29．Whocanespeciallybenefitfromonlineadvertising?A．Localcompanies. B．Smallbusinesses.C．Governmentdepartments. D．Internationalorganizations.30．Thispassageismainlyabout________.A．thefunctionandtheuseoftheInternet B．theapplicationofdigitaltechnologyC．thedevelopmentofsmallbusiness D．theadvantagesofonlineadvertisingBThecomputerisfastandseldomdoeswrongthings,whilepeoplearenotasfastasitandoftendowrongthings.Peopleoftentalkaboutcomputers.Scientistsaretryingtomakethembetterandbetter.Nowacomputercandoalotofeverydayworkverywell.Peopleusecomputersinfactories,hospitals,postofficesandairports（飞机场）.Acomputercanworkinmostfields.Manycomputerscientistsarenowthinkingofmakingthecomputerthinklikeaperson.Withthehelpofman,acomputercandrawpictures,writemusic,talkwithpeople,playgameswithpeopleandsoon.Maybecomputerswillreallythinkandfeeloneday.Doyouthinkpeoplewillbeafraidwhentheyfindthecomputeristooclevertolistentoorservethepeople?31．Whoistryingtomakecomputersbetterandbetter?A．Scientists. B．Teachers. C．Doctors. D．Policemen.32．Whichofthefollowingcan’tcomputersdonow?A．Drawpictures. B．Talkwithpeople. C．Inventnewthings. D．Writemusic.33．Whatwillhappentothecomputerinthefuture?A．Thecomputerwilldomostjobs. B．Peoplewillnotusecomputersanymore.C．Computerswilltaketheplaceof（取代）people. D．Peoplewillusecomputerstotalkwitheachother.34．Thewriterwrotethepassageto________.A．warn（警告）peopleofthedangerofthecomputer B．tellpeopleaboutthecomputerC．tellpeopleaboutcomputerscientists D．showhowtousethecomputer35．Thebesttitleforthepassageis________.A．Computers B．ComputerScientists C．TheFutureWorld D．TalkwithComputers.CThecomputerisfastandseldomdoeswrongthings,whilepeoplearenotasfastasitandoftendowrongthings.Peopleoftentalkaboutcomputers.Scientistsaretryingtomakethembetterandbetter.Nowacomputercandoalotofeverydayworkverywell.Peopleusecomputersinfactories,hospitals,postofficesandairports（飞机场）.Acomputercanworkinmostfields.Manycomputerscientistsarenowthinkingofmakingthecomputerthinklikeaperson.Withthehelpofman,acomputercandrawpictures,writemusic,talkwithpeople,playgameswithpeopleandsoon.Maybecomputerswillreallythinkandfeeloneday.Doyouthinkpeoplewillbeafraidwhentheyfindthecomputeristooclevertolistentoorservethepeople?31．Whoistryingtomakecomputersbetterandbetter?A．Scientists. B．Teachers. C．Doctors. D．Policemen.32．Whichofthefollowingcan’tcomputersdonow?A．Drawpictures. B．Talkwithpeople. C．Inventnewthings. D．Writemusic.33．Whatwillhappentothecomputerinthefuture?A．Thecomputerwilldomostjobs. B．Peoplewillnotusecomputersanymore.C．Computerswilltaketheplaceof（取代）people. D．Peoplewillusecomputerstotalkwitheachother.34．Thewriterwrotethepassageto________.A．warn（警告）peopleofthedangerofthecomputer B．tellpeopleaboutthecomputerC．tellpeopleaboutcomputerscientists D．showhowtousethecomputer35．Thebesttitleforthepassageis________.A．Computers B．ComputerScientists C．TheFutureWorld D．TalkwithComputers.DCommonSenseMediadidastudyaboutkidsandtechnology(科技).Itwasaboutmanydifferentkindsofactivities,fromreadingandlisteningtotheradio,tonewfavoriteslikeusingsocialmediausers(社会媒体用户)andvideochatting(视频聊天).Morethan2,600kidstookpartinthestudy.Herearesometruths:Truth1:Somechildrenspendtoomuchtimelookingatscreens(屏幕).Oneinfivechildrenusesmorethansixhoursofcomputerseachday,and18%ofchildrenarelookingattheirscreensformorethan10hoursaday.Butchildrenspendonly30minutesreadingeveryday.Truth2:Boysprefervideogames;girlsprefersocialmedia.Amongboys,71%enjoyplayingvideogames,twiceasmanyasgirls.Girlsspendabout40minutesmoreeachdayontheirscreensthanboysdo.Truth3:Musicistheirfavorite.Forchildren,while57%haveTVsetsintheirrooms,musicistheirfavorite.However,onlyaboutathirdlistentomusicontheradio.Mostchildrenlistentoitontheirsmartphones(智能手机).Truth4:Gamersgetoutlessandless.Forgamers,theirplaytimeistheleast,only47minuteseveryday.Socialmediausersarethemostactive,spendingonehourand13minuteseverydaydoingsports.41．Howlongdochildrenspendreadingeveryday?A．40minutes. B．30minutes. C．47minutes. D．13minutes.42．Whatdoestheunderlinedword“truths”meaninthefirstparagraph?A．理想 B．方案 C．计划 D．事实43．Mostchildrenpreferlisteningtomusic________.A．onthecomputer. B．onTV C．ontheirsmartphones D．ontheradio44．Whoplayssportstheleastaday?A．Agamer. B．Astudent. C．Agirl. D．Aboy.45．What’sthebesttitleforthetext?A．BoysPreferVideoGames B．MusicisTheirFavoriteC．GamersGetOutLessandLess D．TruthsAboutKidsandTechnologyIV.补全对话。（共5小题，每小题2分，计10分。）Danny:46Cindy:47Danny:Lastweek,Itriedtobuysomebooksonline,butIdidn’tknowhowtopayforthem.Cindy:Youshouldopenanaccountattheonlinebankfirst.48Danny:49Cindy:50Youcanfindeverythingallovertheworld.Let’scheckitoutonline!A．Yes.It’sveryconvenientandthepriceisevenlower.B．Ofcourse,thereare.C．Aretheremanythingsonline?D．Doyoushoponlineoften?E．Afterthat,youcanbuyanythingonline.V.根据提示补全单词。（共10小题，每小题1分，计10分。）51．Lookatthechildren.They(play)happilyinthegarden.52．We(go)fishingifit(notrain)tomorrow.53．Theteacher(give)alessonwhenTom(get)toschool.54．Thiscoatismuch(cheap)thanthatone.I’lltakethisone.55．Mymotheraskedme(buy)somefruitonmywayhome.56．Ihavetwo(dictionary).Icanlendonetoyouifyouneed.57．Ourliveswill（变得不同）.58．Youshould（交朋友）withyourstudents.59．Somepeoplemaytrytogetmoney(通过欺骗).60．Peoplecan（听音乐）online.VI.按要求完成句子。（共10小题，每小题1分，计10分。）61．我会确认一下我是否关门了。IwillwhetherIclosedoorornot.62．Lily将来想成为一名老师。Lilywantstobeateacher.63．你确定锻炼对健康有益吗？youdoingexerciseisgoodforhealth?64．请把书放到你的书包里。Pleasethebookyourschoolbag.65．IwasborninEnglandin1992.（对划线部分提问）andyouborn?66．Peoplesearchforinformationeveryday.(对划线部分提问)dopeoplesearchforinformation？67．Mymotherwascookingamealatnoonyesterday.(对画线部分提问)yourmotheratnoonyesterday?68．IknowhowIcanprotectmyselffromtheearthquake.（同义句转换）Iknowmyselffromtheearthquake.69．Ibelieveitwillraintomorrow.(否定句)Iitraintomorrow.70．I’msurethatyouwilllikethebook.（改为一般疑问句）thatIwilllikethebook？参考答案1．A【详解】句意：科学家们在20世纪60年代开始研究互联网。考查非谓语动词。结合语境可知本句用短语“开始做某事starttodosth”，所以这里用动词不定式作宾语。故选A。2．B【详解】句意：你可以在网上找到新朋友。考查介词辨析。in在……内；on通过；under在……下面；at在。结合语境可知本句用短语“在网上ontheInternet”，所以介词用on。故选B。3．C【详解】句意：多么好的天气啊！我们一起出去散步吧。考查感叹句。what引导的感叹句，修饰的中心词是名词，What（+冠词）+形容词+主谓；how引导的感叹句，修饰的中心词是形容词或副词，how+形容词或副词+主谓。本题的中心词“weather”是不可数名词，要用what引导的感叹句，结构为：What+形容词+不可数名词+主谓!，故选C。4．D【详解】句意：离开时记得关灯。考查动词辨析，close关；turnoff关闭（电源）。根据“thelight”可知应该是关灯，用turnoff。再结合remembertodosth“记得去做某事”，故选D。5．A【详解】句意：——昨天这个时候你在做什么？——我在看书。考查动词时态。was/were+动词的现在分词，构成过去进行时；is+动词的现在分词，构成现在进行时；助动词did+动词原形，用于一般过去时中。根据“Iwasreadingabook.”以及时间状语“thistimeyesterday”可知，问句使用过去进行时，主语是you，be动词用were。故选A。6．D【详解】句意：我的电脑有些问题，它不工作了。考查复合不定代词。nothing没有事；anything任何事；something一些事。形容词修饰复合不定代词时形容词要后置，排除C；句子是肯定句，而且表达的是“电脑有些问题”，用something。故选D。7．A【详解】句意：当心!车开得很快。过马路很危险。考查固定句型，veryadv.非常，可修饰形容词；to不定式；so…that如此……以至于……；muchadj.大量的；too…to太……以至于不能……。观察句子可知应该是车开得很快，过马路很危险。可用：itis+adj.todosth“做某事是怎样的”，故选A。8．C【详解】句意：——让我们休息一下，好吗？——现在不行。我还不想停止写这封信。考查非谓语动词。write是动词，意为“写”；stop后面不加动词原形；stopdoingsth.停止做某事；stoptodosth.停下来去做某事。根据“Notnow.”可知这里表示“现在不休息，不想停止写这封信”。排除A和B。“Idon’twanttostopandwritetheletter”表示“我不想停止，也不想写这封信”，不符合题意。故选C。9．D【详解】句意：这本书对我来说太难理解了。考查固定句型。too+形容词+forsb.+todosth.意为“对某人来说太……而不能做某事”，这里表示太难而无法理解。故选D。10．A【详解】句意：你能把英文单词改成中文吗？考查动词短语。change…into…把……变为……；get…into进入；go…into进入；make…into把……制成。根据“Canyou…theEnglishwords…Chinese?”可知，此处指的是“把英文单词改成中文”，因此此处用“change…into”。故选A。11．C【详解】句意：他不确定这是不是一个好主意。考查宾语从句。此处是be+形容词后构成的宾语从句。when什么时候；where在哪里；if是否；what什么。根据“Hewasnotsure”可知不确定的是事情是有两方面，应用if“是否”，故选C。12．B【详解】句意：上周我们有一个三天的假期。考查复合形容词，数词+名词（单数）可构成复合形容词，three-day意为“三天的”修饰名词holiday，符合语境，故选B。13．D【详解】句意：——你认为Jim会通过语文考试吗？——当然。他花了很多时间在上面。考查动词辨析。take，cost，pay和spend都可以表示“花费”，但用法却不尽相同。take后面常跟双宾语，常见用法有以下几种：(1)Ittakessb.＋时间＋todosth，(2)doingsth.takessb.＋时间；cost的主语是物或某种活动，还可以表示“值”，常见用法如下：(1)sth.costs(sb.)＋金钱，(2)(doing)sth.costs(sb.)＋时间；pay的基本用法是：(1)pay(sb.)moneyforsth，(2)payforsth；spend的主语必须是人，常用于以下结构：(1)spendtime/moneyonsth，(2)spendtime/money(in)doingsth。根据“He...alotoftimeonit.”可知，这里是spendtime/moneyonsth，故选D。14．B【详解】句意：这些衣服是20世纪50年代的。考查年代的表达。表示在某个世纪的几十年代，用“inthe+逢十的基数词的复数”。基数词的复数若用阿拉伯数字表示，可直接加s，也可加’s。如：在20世纪50年代”：inthe1950’s或inthe1950s；结合选项可知，选项B符合。故选B。15．A【详解】句意：他走得太快了，我们追不上他。考查结果状语从句。so,that如此……以至于……，引导结果状语从句，so后接形容词或副词，that后接句子；enough,to足够……去做某事，to后加动词原形；such,that如此……以至于……，引导结果状语从句，such后接名词，that后是句子；too,to太……而不能……，to后接动词原形。空二后是句子，故排除B、D项；空一后是副词，故排除C项。故选A。16．B17．A18．C19．C20．B21．C22．C23．C24．C25．B【导语】本文是一篇记叙文。文章讲述了BillGates学习并运用电脑的故事。16．句意：人们认为电脑就是只有少数足够聪明的人才能懂的大机器。old年老的；clever聪明的；strong强壮的。根据“onlyafewpeople”可知这些少数人应是足够“聪明”才能懂得电脑。故选B。17．句意：有些人，比如BillGates和他的朋友们，对电脑非常感兴趣。beinterestedin对……感兴趣；betiredof对……厌倦；beboredwith对……感到无趣。根据“BillGates”以及“thecomputer.”可知这些人对电脑很“感兴趣”。故选A。18．句意：他们花时间了解电脑以及它们的工作原理。took花费（时间）；paid支付；spent花费（时间或金钱）。spendtimedoingsth表示“花费时间做某事”可知此处应动词spent。故选C。19．句意：他们认为电脑在将来会变得很重要。difficult困难的；easy容易的；important重要的。根据语境可知BillGates等人学习研究电脑，是因为他们认为电脑在将来会变得“很重要”。故选C。20．句意：在1975年，当时他还是哈佛大学的一个学生，Gates看了一本名叫《大众电子学》的杂志。If如果；While当……时；Because因此。根据“asastudentatHarvardin1975”可知此处表示当时的情况，故用while来连接。故选B。21．句意：制作者们正在寻找一种新型的小型系统。seeing看见；serving服务；lookingfor寻找。根据下文“GatestoldthecompanythatheandAllenwouldmake…asystem.”可知他告诉那个公司他们可以制作这样一个系统，说明那个制作者们正在寻找这样的系统。故选C。22．句意：Gates告诉那家公司，他和Allen可以制作这样的一个系统。either(两者中的)任何一个；so如此；such如此，这样的。根据上文“Themakerswere…anew,smallersystem”可知Gates他们可以制作“这样”一个新型的小型系统。故选C。23．句意：Gates和Allen开始工作。work工作；leave离开；practice实践。根据下一句“Theyfinishedtheprogramanditworked.”可知他们完成了那个项目，而且它成功了。因此此处指他们开始“实践”，把学习到的理论应用于实践。故选C。24．句意：他们不害怕做梦。study学习；enjoy享受；dream做梦。根据下一句“Theytookrisks”可知他们敢冒险，因此也可知他们不怕做梦。故选C。25．句意：他正在通过慈善回馈世界。of属于……的；through通过；in在……里面。根据“Heisgivingbacktotheworld…hischarities”可知他“通过”做慈善回馈世界。故选B。26．A27．C28．D29．B30．D【导语】本文是一篇说明文，介绍了网络广告的定义和它的主要优势，如：能够快速传播，不受时空的限制；廉价又有效等。26．细节理解题。根据“WiththearrivaloftheInternet,thebusinessworldhasbecomedigitalized(数字化的)andpeoplepreferbuyingthingsonline,whichiseasierandfaster.”可知，人们倾向于网络购物是因为它更简单、更快速，因此网上购物就更加方便。故选A。27．细节理解题。根据“Itoffersagreatvarietyofservices,whichcannotbeofferedbyanyotherwayofadvertising.”可知，网络广告提供多种服务，而这些服务是其他类型的广告所不能提供的。故选C。28．细节理解题。根据“Onemajorbenefitofonlineadvertisingistheimmediatespreadofinformationthatisnotlimitedbygeographyortime.”可知，网络广告能够立即传播信息，不受地点和时间的限制。故选D。29．细节理解题。根据“Smallbusinessesespeciallyfindonlineadvertisingcheapandeffective.Theycanfocusontheiridealcustomersandpayverylittlefortheadvertisements.”可知，对小企业来说，网络广告廉价又有效。故选B。30．主旨大意题。通读全文可知，本文主要介绍了网络广告的定义和它的主要优势。故选D。31．A32．C33．A34．B35．A【分析】本文是一篇说明文。文章主要介绍了计算机在人类世界中的广泛使用。31．细节理解题。根据第二段“Peopleoftentalkaboutcomputers.Scientistsaretryingtomakethembetterandbetter”可知，科学家们正努力使电脑变得越来越好。故选A。32．细节理解题。根据第二段“Withthehelpofman,acomputercandrawpictures,writemusic,talkwithpeople,playgameswithpeopleandsoon”可知，在人的帮助下，电脑可以画画，写音乐，与人交谈，与人玩游戏等等，故电脑不能发明新东西。故选C。33．推理判断题。根据全文和“Nowacomputercandoalotofeverydayworkverywell”可知，计算机现在可以很好地完成各个领域内的许多日常工作，由此可推测出，在未来，计算机将包揽大部分工作。故选A。34．主旨大意题。通读全文可知，文章主要介绍了计算机在人类世界中的广泛使用，故作者写这篇文章是在告诉人们一些关于电脑的事。故选B。35．最佳标题题。通读全文可知，文章主要介绍了计算机在人类世界中的广泛使用。故选A。36．B37．D38．C39．B40．A【导语】本文主要讲史丹利和他的父亲一起讨论网络正确使用的问题。最后是史丹利明白要正确的使用网络，并和父亲一起利用网络做出了寒假的计划。36．细节理解题。根据“I’mmakingsomeplansforourwinterholiday”可知，父亲利用电脑制作寒假计划，故选B。37．细节理解题。根据“Hewatchedhisdadlookupinformationwhileheatehisapple.”可知，史丹利一边吃苹果一边查看信息，故选D。38．词义猜测题。根据“EveryonecanusetheInternettosaysomewordsbuttheymaybenottrue.Youcanalsofindalotofgoodinformation,butyoustillneedtothinkcarefullyaboutwhatyouarelookingforandhowyoutrytofindit.”可知，网络上的信息有好有坏，需要仔细去分辨。这段话是爸爸对“TherearesomethingsontheInternetandtheyarenotrightandbadforyou.”这个观点的解释。由此可见史丹利是不理解为什么说“网络上的东西有坏的并且对自己不好”。即“Howcome”表示“为什么”。故选C。39．细节理解题。根据“Mr.Brownsaid.”可知，父亲的姓氏是“Brown”，故史丹利的姓氏也是“Brown”，故选B。40．细节理解题。根据“Forthenextfourhours,StanleyandhisdadsuccessfullyusedtheInternetforatripforthefamily.”可知，他们花了4小时做出寒假计划，故选A。41．B42．D43．C44．A45．D【导语】本文是关于孩子们和科技的调查报告。41．细节理解题。根据“Butchildrenspendonly30minutesreadingeveryday.”可知，学生一般每天花费半小时来读书。故选B。42．词义猜测题。根据“Truth1...Truth2...”可知，介绍的是调查结果即事实真相，所以划线单词表示“事实”。故选D。43．细节理解题。根据“Mostchildrenlistentoitontheirsmartphones(智能手机).”可知多数学生通过手机来听音乐。故选C。44．细节理解题。根据“Forgamers,theirplaytimeistheleast,only47minuteseveryday.可知，打游戏的玩家运动时间最少。故选A。45．最佳标题题。根据“CommonSenseMediadidastudyaboutkidsandtechnology(科技).”可知，文章主题是关于孩子们和科技的调查报告。故选D。46．D47．A48．E49．C50．B【导语】本文是Danny和Cindy的对话，两人在谈论网上购物。46．根据下文“Lastweek,Itriedtobuysomebooksonline,butIdidn’tknowhowtopayforthem.”可知，Danny一开始会讲述关于网上购物的事情，选项D“你经常在网上购物吗”符合语境。故选D。47．根据下文“Lastweek,Itriedtobuysomebooksonline,butIdidn’tknowhowtopayforthem.”可知，Danny一开始会讲述关于网上购物的事情，而Cindy也会进行回应，选项A“是的。它很方便，价格更低”符合语境。故选A。48．根据上文“Youshouldopenanaccountattheonlinebankfirst.”可知，Cindy教Danny如何在网上付款，需要先开通一个网上银行账号，选项E“然后，你可以在网上购买任何东西”符合语境。故选E。49．根据下文“Youcanfindeverythingallovertheworld.”可知，Danny应该对网上可以购买的东西有疑问，选项C“网上有很多东西吗”符合语境。故选C。50．根据下文“Youcanfindeverythingallovertheworld.”可知，Cindy会回应Danny的问题，认为网上有世界上的一切东西，选项B“当然了，有很多”符合语境。故选B。51．areplaying【详解】句意：看看孩子们。他们在花园里玩得很开心。根据前句“Lookatthechildren.”语境可知，空处的动作正在进行，应用现在进行时，构成形式为：bedoing；主语为复数形式，b