高三英语大二轮复习完形填空专练（五）说明文

完形填空专练(五)说明文A(2017·兰州市高考诊断考试)Whenyourchildissupposedtobedoinghomework,aretheychattingwiththeirfriendsonFacebookorplayinggames?Manystudieshaveshownthatmultitaskingdoesn’t__1__，__2__yourchildisprobablyproudlyclaimingtheycandotenthings__3__！Manypeoplebelievethattheycan__4__twoormoretasksatthesametime,butDr.EdwardHallowellsaysthisis__5__.Therealityisthatmultitasking__6__poorjobperformance.Newhand­held__7__suchassmartphones,iPads,gamesandsocialnetworkingsitesmakeitveryeasytomultitaskand__8__attentionleadingtodifficultyfocusingonthetask__9__，suchaslisteningintheclassroomordoinghomework.“__10__，thebrainactually__11__kidsformultitaskingeventhoughyourchild’sperformanceoneverytaskgetsworseandworse.Kidsdon’tknowthattheyaredoing__12__becausetheyfeelbetterwhentheymultitask，”saysDr.EdwardHallowell.__13__theappearanceofhand­helddevicesandsocialnetworkingsites,teachershavenoticedadifferencein__14__performance,criticalthinkingskillsandhowinformationis__15__.“Multitaskingpreventspeoplefromgainingadeepunderstandingoftheinformationtheyaretryingtolearn，”saysDr.EdwardHallowell.Kidshaveadifficulttimestickingwitha“difficulttounderstand”topicand__16__toallowthemselvestobedistracted(注意力分散的),totuneoutandswitch__17__toFacebookorusingtheircellphones__18__workingharderatunderstandingadifficultsubjectorproblem.Inthelong__19__，multitaskingaffectsgrades.OnestudyshowsthatkidsthatusetheInternetwhileinclassdo__20__ontests,resultinginlowergrades.语篇解读：本文是一篇说明文，主要讲述了孩子们同时做多项任务对学业所造成的负面影响。1．A.play B．understandC．use D．work解析：选D根据下文中的“Therealityisthatmultitasking__6__poorjobperformance.”可推知，同时做很多事情并没有什么效果。work“有效，起作用”。2．A.onlyif B．eventhoughC．sothat D．nowonder解析：选B根据语境可知，空处上下句之间存在逻辑上的让步关系，eventhough“虽然，尽管”，符合语境。3．A.atonce B．rightawayC．innotime D．atrandom解析：选A根据下文中的“Manypeoplebelievethattheycan__4__twoormoretasksatthesametime”可知，孩子们会声称能同时做十件事情。atonce“同时”。4．A.advocate B．dealC．perform D．prefer解析：选C根据语境可知，许多人相信他们可以同时做两件或是更多事情。perform“做，执行，履行”。5．A.impossible B．importantC．impatient D．impolite解析：选A根据下文中的“poorjobperformance”可知，Dr.EdwardHallowell认为同时做多项任务是不可能的。故A项正确。6．A.resultsin B．resultsfromC．existsin D．existsfrom解析：选A根据语境尤其是“poorjobperformance”可推知，同时做多项任务的结果很不好。resultin“导致，造成”。7．A.designs B．discoveriesC．equipment D．evidence解析：选C根据空后的“smartphones,iPads”可知，此处表示新的便携式装备，故C项正确。下文第13空后的“hand­helddevices”也是信息提示。8．A.attract B．drawC．pay D．share解析：选D根据下文中的“leadingtodifficultyfocusingonthetask”可推知，多任务容易分散注意力。share“共享，共用”。9．A.athand B．ontimeC．onschedule D．attimes解析：选A根据空后的“suchaslisteningintheclassroomordoinghomework”可知，这些都是手头要做的事。athand“在手边”。10．A.Uncertainly B．UnfortunatelyC．Universally D．Undoubtedly解析：选B根据第一段最后两句可知，Dr.EdwardHallowell并不赞成多任务行为，因此当大脑给这种行为以肯定或鼓励时，他认为是不幸的。11．A.remains B．rewardsC．regards D．reflects解析：选B根据空后的“eventhough”可知，空处与worse形成对比，由此可推知大脑反而鼓励这种多任务行为。reward“奖赏，报答”。12．A.better B．wellC．bad D．worse解析：选D根据上文中的“getsworseandworse”和空后的“becausetheyfeelbetterwhentheymultitask”可知，孩子们并不知道自己变得更糟糕。13．A.Since B．BeforeC．When D．While解析：选A结合空后现在完成时的运用可知，此处应用连词since“自从……之后”引导时间状语从句。14．A.accidental B．accurateC．accessible D．academic解析：选D根据上文的“teachers”可推知，老师们注意到学生们在学业上的差异。academic“学术的，学业的”。15．A.produced B．processedC．possessed D．promoted解析：选B根据下文中的“Multitaskingpreventspeoplefromgainingadeepunderstandingoftheinformationtheyaretryingtolearn”可知，这些便携式工具的出现改变了学生处理信息的方式。process“处理”。16．A.tend B．attendC．intend D．pretend解析：选A根据空前的“Kidshaveadifficulttimestickingwitha’difficulttounderstand’topic”可知，孩子们很难坚持一个理解起来有困难的话题，他们的注意力往往会分散。tendtodosth.“往往会发生某事”。17．A.out B．onC．off D．over解析：选D根据语境可知，既然注意力分散了，孩子们就有可能转而关注学习之外的东西。switchoverto“转向”。18．A.exceptfor B．ratherthanC．morethan D．apartfrom解析：选B根据语境可知，孩子们去玩手机或Facebook，而不是更努力地学习。ratherthan“而不是”。19．A.run B．walkC．journey D．distance解析：选Ainthelongrun为固定短语，意为“从长远来看”，符合语境。20．A.hardly B．successfullyC．poorly D．mildly解析：选C根据空后的“resultinginlowergrades”可知，在课堂上上网的孩子考试成绩差。B(2017·兰州市高考实战模拟考试)Whatisthedifferencebetween“entertainment”and“hobbies”？Well,entertainment__1__tobemoreorlesspassive(被动的),whilehobbiesaremore__2__.WatchingTVormaybeaDVDcontinuestobethemost__3__formofhomeentertainmentintheUSA.AccordingtoUSgovernmentstatistics,watchingTVwastheleisureactivity(休闲活动)that__4__mosttime(2.8hoursperday),makingupabouthalfofallleisuretimeforthoseaged15andover.__5__，suchasvisitingfriendsorchattingonline,wasthenextmost__6__leisureactivity,accountingfornearlythree­quartersofanhourperday.Menweremorelikelythanwomentobe__7__spectatorsports(观赏性体育)—21percent__8__withafigureof16percentforwomen.Not__9__，onanaverageday,adultsaged75andoverspent7.8hoursonleisureactivities,morethananyotheragegroup.Becauseofthe__10__ofworkandmanagingahousehold,35­to44­year­oldspent__11__4.3hoursonleisureactivities,lessthananyotheragegroup.__12__spentreadingforpersonalinterestandplayingvideogamesorusingaputerforleisure__13__greatlybyagegroup.Individualsaged75＋averaged1.0hourofreadingperweekenddayand26minutesplayinggamesorusingaputerforleisure.__14__，peopleaged15to19readforanaverageofonlyfiveminutesperweekendday,__15__spending1.0hourplayinggamesorusingaputerforleisure.Thispatternisalreadybeginningto__16__.Justafewyearsago,putergamesandvisitingsocialnetworkingsiteslikeFacebookorMySpacewerealmostonlya(n)__17__activity.Now,__18__，moreandmoreadultsarefindingthat__19__suchgamescanbeawonderfulwayof__20__afterahardday’swork.eq\x(语篇解读：本文是一篇说明文。文章介绍了美国人的家庭娱乐休闲方式。)1．A.manages B．startsC．tends D．promises解析：选C此处是将“娱乐”与“爱好”进行对比，娱乐“趋向于(tendsto)”被动，而爱好更“主动(active)”。2．A.active B．pleasantC．familiar D．mysterious解析：选A参见上题解析。3．A.special B．funnyC．popular D．plex解析：选C由下文的“makingupabouthalfofallleisuretime”可知，来自美国政府的数据显示看电视“占用(tookup)”了15岁或以上人群一半的休闲时间，因此看电视或看DVD是最受美国人“欢迎的(popular)”家庭休闲方式。4．A.saved B．foundC．setup D．tookup解析：选D参见上题解析。5．A.Traveling B．AnalyzingC．Socializing D．Sightseeing解析：选C“拜访朋友”和“在线聊天”都是“社交(Socializing)”活动。6．Amon B．originalC．normal D．correct解析：选A由下文的“nearlythree­quartersofanhourperday”可知，“社交活动”是紧随“看电视”之后的又一种最“常见的(mon)”休闲活动。7．A.tiredof B．proudofC．worriedabout D．interestedin解析：选D21percent与16percent这两个数字形成“对比(pared)”，相较于女性，男性对观赏性体育更“感兴趣(interestedin)”。8．A.mixed B．paredC．connected D．involved解析：选B参见上题解析。9．A.luckily B．suddenlyC．surprisingly D．naturally解析：选C75岁或以上的老人用在休闲活动上的时间是每天7.8小时，这一点也不“令人惊讶(surprisingly)”。10．A.future B．tastesC．demands D．way解析：选C由下文的“lessthananyotheragegroup”可知，由于工作和处理家庭事务方面的“需求(demands)”，35岁到44岁的人群用在休闲活动上的时间每天“只有(only)”4.3小时。11．A.only B．evenC．still D．ever解析：选A参见上题解析。12．A.Money B．TimeC．Effort D．Energy解析：选B由下文的数据“1.0hour,26minutes,fiveminutes”可知，本段是指人们用在阅读和电脑游戏上的“时间(Time)”因年龄层次而有所“变化(varied)”。13．A.spread