六级阅读练习试题

六级阅读练习试题一、阅读理解（共20题，合计100分）Unit1PassageOneCarbondioxidemakesuplessthanonepercentoftheEarth'satmosphere,butthegasisveryimportanttolifeonEarth.Scientistsarefindingthatprocessesinvolvingcarbondioxideaffectourclimateinwaysthataredifficulttounderstand.Lastmonth,acommitteeoftheNationalAcademyofSciencesinWashingtonreleasedareport.Itconfirmedthatworldtemperaturesincreasedaboutsix-tenthsofadegreeCelsiusinthelastonehundredyears.Thereportalsoconfirmedevidencethatthelevelofcarbondioxideisincreasing.ThebestinformationaboutclimateinthepastcomesfromtestsoficemanykilometersdeepinAntarcticaandGreenland.Thetestsshowchangesintemperatureduringthepastfourhundredthousandyears.Thesetestsshowthatlevelsofcarbondioxidetodayarethehighestevermeasured.Thesefindingshaveledscientiststobelievethatcarbondioxideisamajorcauseofclimatewarming.Carbondioxideisreleasedintotheatmospherewhenfuelisburned.Oil,coalandwoodareallfuelsthatreleasethegas.Whenbiologicalwastebreaksdown,italsoreleasescarbondioxide.However,plantsusecarbondioxideintheprocesscalledphotosynthesis.ThisprocessprovidesfoodforalmostalllifeonEarth.Somegroupsthatsupportburningoilandcoalwanttoincreasetheamountofcarbondioxideintheatmosphere.Theyopposeinternationaleffortstocontrolcarbondioxide.Somescientistsbelievethatforestsandtreesareabletocapturelargeamountsofcarbondioxidefromtheair.Somegroupsevensuggestthatanincreaseincarbondioxidecouldcauseplantstogrowfaster.ArecentstudyinNorthCarolinafoundthatmorecarbondioxideintheaircouldcausetreestogrowfaster.Buttheresearchersfoundtheeffectappearstolastforonlythreeyears.Anotherstudyshowedthatmuchofthecarbondioxidethatistakeninbytreesisreleasedwithinthreeyears.Thestudynotedthatleavesreleasecarbondioxidewhentheyfallfromtreesandbreakdowninthesoil.Plantsalsonaturallyreleasecarbondioxidethroughtheprocessofrespiration.Thenaturalbalanceofgasesintheatmosphereisacomplexscientificissue.Thedebateovercarbondioxideisonlyonepartofeffortstounderstandworldclimatechange.1ThecommitteereportoftheNationalAcademyofSciencesinWashingtonrevealsthat.icefromAntarcticaandGreenlandisappropriatetoshowthechangecarbondioxideisreleasedmainlyfromthefuelglobaltemperaturesincreaseasthelevelofcarbondioxideincreasescarbondioxideishelpfulfortreegrowth［正确答案］C［您的答案］C本题分值：1分您的得分：1分试题解析：推断题。文章第一段指出，位于华盛顿的国家科学院的一个委员会发表了一份报告，该报告证实了全球温度在过去一百年升高了六分之一摄氏度，还证实发了二氧化碳含量正在增高，由此推断，报告显示二氧化碳含量和全球温度都有所升高，所以C正确。+我要找茬+加入错题+收藏该题评论此题2Whichofthefollowingcanbethesourceofcarbondioxide?1/46六级阅读练习试题Oilandsoil.Soilandtrees.Woodandsoil.Treesandoil.［正确答案］D［您的答案］A本题分值：1分您的得分：0分试题解析：细节题。文章第三段第三句提到，石油、煤和木材都是能释放二氧化碳的燃料；倒数第二段最后两句提到，树叶从树上落下来的时候会释放二氧化碳，植物在呼吸过程中也会自然地释放二氧化碳，再结合常识可知，土壤无法产生二氧化碳，所以排除A、B、C，选D。+我要找茬+加入错题+收藏该题评论此题3Accordingtothispassage,somepeopledisagreewiththecontrolofcarbondioxidebecausetheythinkthatcarbondioxideisbeneficialforplantgrowththeywanttousemorefuelsthatcanemitcarbondioxidetheythinkcarbondioxideisnotthemainreasonforglobalwarmingtheythinkitwilldestroythenaturalbalanceofgasesintheworld［正确答案］B［您的答案］A本题分值：1分您的得分：0分试题解析：推断题。文章第匹l段第三句指出，一些支持燃烧石油和煤的组织想要增加大气中二氧化碳的含量，他们反对国际上为控制二氧化碳所做的努力，由此推断，他们反对控制二氧化碳的原因是他们想更多地使用那些可能释放二氧化碳的燃料，所以B正确。由第五段第二句可知，一些组织甚至认为二氧化碳的增加会促进植物生长，但这并非他们反对控制二氧化碳的原因，故排除干扰项A。+我要找茬+加入错题+收藏该题评论此题4ThosestudiescarriedoutinNorthCarolinasuggestthat.trees'functionforabsorbingcarbondioxideislimitedcarbondioxideisthemaincauseforglobalwarmingleavesfallingfromtreescanemitmoreoxygencarbondioxideisbeneficialfortrees'growthformanydecades［正确答案］A［您的答案］A本题分值：1分您的得分：1分试题解析：推断题。文章倒数第二段指出，最近在北卡罗来纳州进行的一项研究发现，空气中二氧化碳的增多能促进树木加速生长，但研究人员还发现这种功效只能持续三年，由此推断，尽管树木可以吸收二氧化碳，但这种吸收功能是有限的，所以A正确。+我要找茬+加入错题+收藏该题评论此题5Theword"issue"(Line1,Para.7)canbereplacedantopic2/46六级阅读练习试题publicationresult［正确答案］B［您的答案］B本题分值：1分您的得分：1分试题解析：语义题。被考查词所在句意为“大气中气体的自然平衡是一个复杂的科学”，再结合之后提到的关于二氧化碳的争论可知，气体的自然平衡应该是一个科学论题，所以B正确。A（器官）、C（出版物）、D（结果）均不符合句意。+我要找茬+加入错题+收藏该题评论此题PassageTwoThehigh-techrevolutionhasinspiredaseeminglyendlessstreamofnewandexcitingelectronicproductsthatwejustcan'tlivewithout.Infact,thedizzyingspeedoftechnologicalinnovationcanmakelastyear'smustthisyear'sjunk.Andthat'stheproblem.Theaveragelifespanatpersonalcomputerhasshrunktoaround19months--andthishasnothingtodowithworn-outmiceordamageddiskdrives.Simplyput,electronicproductscanbecomeobsoletebeforeyou'veevenfiguredouthowtheywork.Sowhathappenstoallthoseoldkeyboards,monitors,organizersandCPUs?Mostarestashedawayintheatticorforgotteninacorporatewarehouse,takingupvaluablespace.Butmanyendupinlandfills,andthatiswherethetroublereallybegins.Computermonitorscancontainupto3.5kgofleadandcanactuallybeconsideredhazardouswasteoncetheyarenolongerinuse.Circuitboardsinelectronicproductscontaincadmium（车鬲）,chromium（铭）andmercury,allofwhicharetoxicsubstancesthatcanleachintogroundwaterifleftinalandfill.Unfortunately,thisdisposalproblemisnotgoingtodisappearanytimesoon--infact,itisgrowingbytheminute.InJapanalone,consumersthrowawaysome20millionTVs,washingmachines,refrigeratorsandairconditionerseachyear.InEurope,6millionmetrictonsofelectricalandelectronicequipmentweregeneratedin1998alone,andthatvolumeisexpectedtoincreasethreetofivepercentperyear--whichmeansby2010itcouldnearlydouble.What'stobedonewithallthistechno-trash?Electronicsmanufacturersareworkinghardtoanswerthisquestion.TheEuropeanCommissionhasproposedadirectivethatwouldrequireallelectronicsmanufacturerstotakebackandproperlydisposeofallelectronicproducts,regardlessoftheirage.Thedetailsarestillbeingironedout,butsomeversionofthedirectivewillmostprobablybecomelawinthenextfewyears.SimilarlegislationisintheworkintheU.S.andhasalreadypassedinJapan.Asthecostsofsuchprogramscouldquicklybecomeprohibitive,companiesaresearchingfornewwaysoftacklingdisposalissuesbeforetheybecomeaproblem.Onewaytoreducewasteistoavoidthrowingthinginthefirstplace.Manycompaniesreusepartsfromoldproductsinnewmodels.Thisisnotcheating--itmakesbothenvironmentalandeconomicsense.6Theauthormainlyintendstoaddress.theissueoftechnologicalinnovationsthenecessityofupdatingcomputerhardwaretheconservationofnaturalresources3/46六级阅读练习试题thedisposalproblemofelectronicproducts［正确答案］D［您的答案］本题分值：1分您的得分：0分试题解析：主旨题。文章第一段指出，科技的飞速发展使得去年的必需品成为今年的垃圾；接下来的儿段介绍了电子垃圾可能造成的危害；第五段指出，垃圾处理面临的问题不会马上消失；最后几段介绍了应该如何处理电子垃圾。综合可知，本文主要讨论了电子产品的处理问题，所以D正确。+我要找茬+加入错题+收藏该题评论此题7Computermonitorsdisposedwillposeadangertoenvironment.ifburiedinlandfillswhenputawayinwarehousesoncenolongerinuseunlessstashedwithotherappliances［正确答案］A［您的答案］本题分值：1分您的得分：0分试题解析：推断题。文章第三段最后一句指出，许多旧键盘、显示器、中央处理器等都被埋在了垃圾掩埋场，而那就是麻烦开始的地方；第四段第一句指出，电脑显示器中含有多达3.5千克的铅，如果不再使用实际上就是危险废品，而由常识可知，铅会对环境造成危害。由此推断，如果采用垃圾掩埋法来处理电脑显示器，其中的铅就会对环境造成危害，所以A正确。+我要找茬+加入错题+收藏该题评论此题8ThecaseofJapaninPara.5ismentionedtoshow.shortenedlifespanofpersonalcomputerstheexplosionoftech-trashtheinsensibilityofJapaneseconsumerstheleadingroleofthiscountry［正确答案］B［您的答案］本题分值：1分您的得分：0分试题解析：推断题。文章第五段第一句指出，不幸的是这种垃圾处理面临的问题不会马上消失，事实上这种问题每分钟都在增加；接着便以日本消费者丢弃大量电器为例进行说明。由此推断，该段提到日本的例子是为了说明高科技垃圾的数量之多及其严重性，所以B正确。+我要找茬+加入错题+收藏该题评论此题9Itcanbeconcludedfromthepassagethatobsoleteelectronicproductsshouldberecycledforlackoflegislativedirectivesformulatedintheinterestsofelectronicmanufacturersoutofenvironmentalandeconomicconcerninresponsetopublicprotestsagainstpollution［正确答案］C［您的答案］4/46六级阅读练习试题本题分值：1分您的得分：0分试题解析：推断题。文章最后两句指出，许多公司在新机型上重新使用旧产品的零件，这不是欺骗，而是具有环保和经济意义，由此推断，循环利用旧电子产品是出于环保和经济考虑，所以c正确。+我要找茬+加入错题+收藏该题评论此题10Wecanlearnfromthepassagethathigh-techcompanies.trytheirbesttoavoidlegalobligationsasmuchaspossiblealwayshavethefinalsayindisposalissuesunderdiscussionarechieflyresponsibleforthedangerouswastepollutionD.strivetodevelopcontinuallyupdatedelectronicproducts［正确答案］D［您的答案］本题分值：1分您的得分：0分试题解析：推断题。文章开头指出，科技的飞速发展使去年的必需品成为今年的垃圾，之后又多次提到消费者不断丢弃旧的电子产品，转而使用新的电子产品，由此推断，电子产品更新换代的速度非常快，而这应该是高科技公司不懈努力的结果，所以D正确。+我要找茬+加入错题+收藏该题评论此题PassageThreeAstrangethingabouthumansistheircapacityforblindrage.Rageispresumablyanemotionresultingfromsurvivalinstinct,butthesurprisingthingaboutitisthatwedonotdeployitagainstotheranimals.Ifweencounteradangerouswildanimal--apoisonoussnakeorawildcat--wedonotflyintoatemper.Ifweareunarmed,weshowfearandattempttobackaway;ifwearesuitablyarmed,weattack,butinarationalmannernotinarage.Wereserverageforourownspecies.①Itishardtoseeanysurvivalvalueinattackingone'sown,butifwetakeaccountofthelongcompetitionwhichmusthaveexistedbetweenourownsubspeciesandotherlikeNeanderthal（穴居人的）man--indeedothersstillmoreremotefromusthanNeanderthalman--humanragebecomesmorecomprehensible.Inoureverydaylanguageandbehaviortherearemanyremindersofthoseearlystruggles.Wearealwaysusingthewords"usandthem"."Our"sideisperpetuallyWingtododownthe"other"side.Ingamesweartificiallycreateothersubspecieswecanattack.Theoppositionof"us"and"them"isthetouchstoneofthetwo-partysystemof"democratic"politics. ②Althoughtherearenoveryseriousconsequencestomanyofthesemodernpsychologicalrepresentationsofthe"usandthem"emotion,itisaswelltorememberthattheoriginalaimwasnottobeattheothersubspeciesinagamebuttoexterminateit.③Thereadinesswithwhichhumansallowthemselvestoberegimentedhaspermittedlargearmiestobeformed,whichtakentogetherwiththe"usandthem"blindrage,hasledtodestructiveclasheswithinoursubspeciesitself.TheFirstWorldWarisanexampleinwhichEuropedivideditselfintotwoimaginarysubspecies.AndthereisasimilarexterminationbattlenowinNorthernIreland.Theideathatthereisareligiousbasisforthisclashisillusory,fornoteventhePopehasbeenabletocontrolit.TheclashismuchmoreprimitivethantheChristianreligion,mucholderinitsemotionalorigin.TheconflictinIrelandisunlikelytostopuntilagreaterprimitivefearisimposedfromoutsidethecommunity,oruntilthecombatantsbecome5/46六级阅读练习试题exhausted.11Asuitabletitleforthispassagewouldbe.WhyHumanArmiesAreFormedMan'sAngeragainstRageTheHumanCapacityforRageEarlyStrugglesofAngryMan［正确答案］C［您的答案］本题分值：1分您的得分：0分试题解析：主旨题。文章第一段指出，人类有产生无名之火的能力，人们只对自己的同类感到愤怒；第二段指出，人类总是将自身分为‘我们”和“他们”的对立团体；第三段指出，人类愿意把自身归入某一团体之中，这使大规模军队的形成成为可能，再加上“我们和他们”这种无名之火，就会引发破坏性冲突。综合可知，文章主要在论述人类产生无名之火的能力，所以C正确。+我要找茬+加入错题+收藏该题评论此题12Accordingtotheauthor,thesurprisingaspectofhumanangeris.itslengthyandcomplexdevelopmentaconflictsuchasisnowgoingoninNorthernIrelandthatwedonotoftenflyintoatemperthatwereserveangerformankind［正确答案］D［您的答案］本题分值：1分您的得分：0分试题解析：推断题。文章第一段第二句指出，愤怒大概是源于求生本能的一种情感，但令人吃惊的是我们不会对其他动物感到愤怒；第五句指出，我们只将愤怒留给同类。由此推断，人类愤怒令人吃惊的一面是我们只对人感到愤怒，所以D正确。+我要找茬+加入错题+收藏该题评论此题13Fromthepassagewecaninferthat.theartificialcreationofasubspeciesunlikeusissomethingthatneverhappensgamesarepsychologicallyunhealthyanyartificiallycreatedsubspecieswouldbeourenemytherealorimaginedexistenceofanopposingsubspeciesisinherentinman'sactivities［正确答案］D［您的答案］本题分值：1分您的得分：0分试题解析：推断题。第一段最后一句指出，很难明白用来攻击自身的愤怒有什么存在价值，但我们如果考虑到我们自己的亚种和其他人类群体之间必然存在的长期竞争，就更容易理解人类的愤怒，由此推断，人类活动中总是存在着真实的或想像的与我们对立的亚种，所以D正确。+我要找茬+加入错题+收藏该题评论此题14Thepassagesuggeststhat.historically,wehavecreatedan"us"versus"them"societyhumanshavehadanaturaldisinclinationtowardformalgrouping6/46六级阅读练习试题theFirstWorldWarisanexampleofhowmanhasalwaysavoideddominationtheemotionaloriginofthewarinIrelandislostintime［正确答案］A［您的答案］本题分值：1分您的得分：0分试题解析：推断题。文章第二段提到，有许多日常语言和行为提醒着我们那些早期的斗争，我们总是用“我们”和“他们”的字眼，我们这方总是试图战胜另一方。由此推断，在历史上我们创建出了与“他们”相对立的“我们”的社会，所以A正确。+我要找茬+加入错题+收藏该题评论此题15TheauthorbelievesthatareligiousexplanationforthewarinNorthernIrelandis.A.foundedinhistoricalfactdeceptiveapparentprobablyaccurate［正确答案］B［您的答案］本题分值：1分您的得分：0分试题解析：推断题。文章最后一段第四句指出，认为此次冲货北爱尔兰战争）有着宗教基础的观点是不可靠的，因为即使是罗马教皇也无法控制战争。由此推断，作者认为从宗教角度来解释北爱尔兰战争是具有欺骗性的，所以B正确，其中deceptive是对原文中illusory的同义转述。A（建立在史实基础上）、C（明显的）、D（或许正确）均不正确。+我要找茬+加入错题+收藏该题评论此题PassageFourTheimmunesystemisthebody'sdefender.Itidentifies,tracksdown,anddestroystroublemakersbeforetheycanhurtthebody.Thosetroublemakersmaybe,forexample,bacteriafromacutorsplinter,ameaslesgerm,acoldbug,orevenacancercell.Theseinvaderstrytotakeoverourtissuesandfeedoffourbodies'nutrients.Iftheysucceed,webecomesickor,sometimes,evendie.It'sthejobofourimmunesystemstodestroytheseinvadersbeforetheydestroyus.Sayyoupickedupafluviruslastweek.Perhapsitenteredyourbodythroughacut,fromadrinkingglass,orfromtheairyoubreathe.Ofcourse,youdidn'tfeelit,butthevirusmadeitswayintoyourbloodstream.Assoonasitenteredyourbody,itbegantoreproduce.Viruseshaveonlyonegoal：totakeoveryourcells.Onceinsideyourbody,virusestrytoentercellsanddisrupttheirnormalwork.Ifleftalone,theseviruseswouldhurtsomanycellsthatyouwouldweaken,orworse,getaseriousillness.Butthisfluvirusshouldnotbeascomplacentasitseemstobe.Asitreproducesinyourbloodstream,thevirusismetbyacertainkindofwhitebloodcell,thelymphocytes.Thelymphocytesarethefootsoldiersthatkeepyoualive.Thenumberoflymphocytesinyourbodyishardtoimagine.Thousandsofthemcouldfitintheperiodattheendofthissentence.Yourbodyholdsaboutatrillion--that's1,000,000,000,000ofthem,orabout3,000ineverydropofblood.Sinceyoubeganreadingthissentence,over800,000ofthemhavebeencreatedanddestroyed.7/46六级阅读练习试题Someoftheselymphocytespassthroughasmallwalnut-sizedorgancalledthethymus(胸腺).Thethymusisthebaseoftheneck.Herespecialhormonesturnlymphocytesintofightingcells,calledTcells.Tcellshaveoneterrifictalent:theycantellthedifferencebetweenfriendandfoe;whatshouldbeinourbodiesandwhatshouldn't.Theydonotaffectthebody'shealthycells.Yettheyattackeverythingthatisforeigntoourbodies,suchasgerms,"transplants,andevenourowncellswhichhavebecomeabnormal,asinthecaseofcancer.16Whatisthefunctionofourimmunesystem?Totakeoverourtissuesandfeedoffourbodies'nutrients.Topreventbacteriaorgermsfromenteringthebody.Todestroythetroublemakersinorderthattheymightnothurtthebody.TofightagainstTcells.［正确答案］C［您的答案］本题分值：1分您的得分：0分试题解析：推断题。文章第二段最后一句指出，免疫系统的工作是在入侵者伤害人体之前将其消灭，结合上一段可知，此处的“入侵者”(invaders)指的是细菌等侵入人体的麻烦制造者，所以C正确。第二段首句提到，试图控制人体组织并占用人体养分的是入侵者，而不是免疫系统，故排除A；原文并未提到免疫系统可以防止细菌进入人体，故排除B；倒数第二段提到，T细胞是免疫系统的一部分，故排除D。+我要找茬+加入错题+收藏该题评论此题17Whatdoestheword"lymphocytes"(Line3,Para.4)mean?Footsoldiers.Fluvirus.Whitebloodcells.Troublemakers.［正确答案］C［您的答案］本题分值：1分您的得分：0分试题解析:语义题。被考查词所在句意为“当流感病毒在血液里繁殖时，病毒会遭遇一种特定的白血球，即"。由此可知，被考查词是对之前“一种特定的自血球”(acertainkindofwhitebloodcell)的进一步说明，可见lymphocytes就是一种白血球，所以C正确。+我要找茬+加入错题+收藏该题评论此题18ThelastsentenceofPara.5impliesthat.thissentencecontributestotheincreaseofthenumberoflymphocytesinyourbodyyouwouldnotrealizethatlymphocytesreproducethemselvesrapidlybutforthissentencebecauseyoureadthissentence,alargenumberoflymphocyteshavebeenconsumedthenumberoflymphocytesinyourbodyisextremelylarge［正确答案］D［您的答案］本题分值：1分您的得分：0分试题解析:8/46六级阅读练习试题推断题。文章第五段最后一句指出，从你开始读这个句子起，有超过80万个淋巴细胞被制造出来或被破坏掉。再结合首句捉到的人体内淋巴细胞的数量大得惊人推断可知，此句旨在强调淋巴细胞的数量之多，所以D正确。+我要找茬+加入错题+收藏该题评论此题19WhichofthefollowingcanbedetectedbyTcells?Cancercellsandtransplants.Thymusandlymphocytes.Thymusandgerms.Healthycellsandhighbloodpressure.［正确答案］A［您的答案］本题分值：1分您的得分：0分试题解析：推断题。文章最后一段指出，T细胞能够识别朋友和敌人，能够识别什么应该在我们体内，什么不应该留在体内，结合最后一句可知，移植器官和癌细胞都属于敌人”，所以选A。健康的细胞显然属于“朋友”，而胸腺称不上是朋友或敌人，故排除B、C、D。+我要找茬+加入错题+收藏该题评论此题20Whichofthefollowingquestionsbestsummarizes1hemainideaofthewholepassage?Howdoestheimmunesystemattackthefluvirus?B．Howdoestheimmunesystemfunctioninourbody?C．Howdothelymphocytesworkinourbody?D．Whatisthesocalledimmunesystem?［正确答案］B［您的答案］本题分值：1分您的得分：0分试题解析：主旨题。文章首先说明免疫系统的作用，然后举例说明流感病毒入侵人体后，淋巴细胞会与其进行战斗，综合可知，本文主要讨论免疫系统是如何在人体内发生作用的，故选B。A、C、D三项在文中均有所涉及，但都不够全面，故排除。+我要找茬+加入错题+收藏该题评论此题Unit2PassageOneWindowsVista,thelatestiteration便复）ofMicrosoft'soperatingsystem,isfinallyhere.ItwasofficiallyreleasedtocorporateuserslastweekandwillbeavailabletoconsumersonJan.30.ButnowthatVistaisready,willyourcomputerbe?Andwhatwillbeinvolvedinanupgrade?MicrosoftsaysVistaoffersincreasedsecurity,alongwithanimprovedsearchfunction,anexcellentcalendarprogram,improvednetworkingandasidebarwithquickaccesstomin-programscalledgadgets.Withtherightdisplayadapter,someeditionsofVistawillalsoofferanewinterfacecalledAerothatletsyoupreviewwhatisinsidearunningprogrambyplacingyourcursor（光标）overitsthumbnailinthetaskbar.ItwillbepossibleformanyPCuserstospend$99to$259topurchaseaVistaDVDtoupgradetheirexistingWindowsXPmachines.Butbeforeyoudothat,youneedtotakeagoodlookatyourPCaswellasyourperipherals（夕卜围设备）andsoftware.Ifyoursystemisn'tquitecompatible,itmightbepossibletomakeitreadyforVistawithsomeadditionalmemoryorperhapsanewvideo9/46六级阅读练习试题card.EvenifyourPCisVista-ready,thatdoesn'tmeanyoushouldbuytheupgradekit.Formostusers,especiallythosewhosehardwareisn'tquiteuptospeed,itmightmakesensetowaituntilit'stimeforanewPC.TheeasiestwaytogetVistaistobuyanewPCafterJan.30.IfyouwantanewPCsooner,makesurethehardwareisVista-readyandseeifthevendorisofferingacouponforafreeorlow-costupgradewhenVistacomesout.ItisessentialtocomparethecostofbuyinganewsystemagainstpurchasingVistaandupgradingyourcurrentPC.BythetimeyouaddupthecostofVistaplusanyrequiredhardware,itmightmakemoresensetogetanewmachine.OnevariableforthosethinkingofupgradingisVista'ssystemrequirements,whichvarybyedition.Microsoftwilloffera$99HomeBasicEditionthatprovideslimitedfunctionalitybutrunsonmorebasicequipment.Unlikethehigher-endversions,HomeBasicwon'tsupportthenewAerointerface.Ifyou'rereluctanttoupgrade,don'tfret（烦恼）.IfWindowsXPworksforyounow,itwillcontinuetoworklongafterJan.30.Besides,Vistaisn'tgoingawayanytimesoon.Whetheryouwanttoornot,you'llprobablyheusingitonyournextPC.21WhatcanWindowsVistabringtoPCusers?A.Anewdisplayadapter.Moremini-programs.Betterinterfaces.Animprovedsearchfunction.［正确答案］D［您的答案］D本题分值：1分您的得分：1分试题解析：细节题。文章第二段指出，微软称Vista会增强安全性，并提供改进的搜索功能、出色的日历程序、改善的网络，以及可以快速进入小程序的工具条，所以D正确。+我要找茬+加入错题+收藏该题评论此题22WindowsVistacanberunon.allkindsofcomputerssomecomputerswithWindowsXPsystemcomputerswithanewvideocardcomputerswithadditionalmemory［正确答案］B［您的答案］C本题分值：1分您的得分：0分试题解析：推断题。文章第三段首句指出，许多个人电脑用户花99到259美元就可以买到Vista的数字光盘来升级他们已经装有WindowsXP系统的电脑，由此断，Vista应该可以在一些装有WindowsXP操作系统的电脑上运行，所以B正确。+我要找茬+加入错题+收藏该题评论此题23ItmightmakemoresensetobuyanewPCthantoupgradeyourcurrentPCbecause.WindowsVistamayrunbetteronanewPCthanonthecurrentonepurchasingVistaandupgradingthecurrentPCmaycostmoremoneythanbuyinganewPC10/46六级阅读练习试题it'shardtogettheupgradekitofVistaformostPCuserstheuseofVistamayrequirecertainhardwarethatonlynewPCscontain［正确答案］B［您的答案］B本题分值：1分您的得分：1分试题解析：推断题。文章倒数第三段指出，有必要比较买一台新电脑的费用和购买Vista升级现有电脑的费用，把购买Vista和所需硬件的费用加起来，买一台新电脑可能更有意义，由此推断，购买Vista再升级电脑花的钱可能比买台新电脑花的钱还要多，所以B正确。+我要找茬+加入错题+收藏该题评论此题24WhatwillhappenifaPCuserdoesn'tuseVista?ThePCwillworkjustasbefore.ThePCwillstopworking.ThePCwillbereplacedbyotherelectronicproducts.ThePCwillbeattackedbysomevirus.［正确答案］A［您的答案］A本题分值：1分您的得分：1分试题解析：推断题。文章最后一段指出，如果你不想升级，也不用烦恼，如果你现在使用WindowsXP操作系统，那1月30日以后还可以继续使用，再结合第一段提到的个人版Vista将在1月30日发布推断可知，个人电脑用户就算不用Vista，电脑也还会像以前那样运转，所以A正确。+我要找茬+加入错题+收藏该题评论此题25Whatisthepassagemainlytalkingabout?A.TheadvantagesofVista.HowtoupgradeyourcurrentPC?ArePCusersreadytouseVista?ThepopularityofVista.［正确答案］C［您的答案］A本题分值：1分您的得分：0分试题解析：主旨题。文章第一段提到，Vista：操作系统已经上市了，你的电脑做好升级的准备了吗?第三段指出，如果电脑操作系统不兼容vista，就可能需要增加内存或更换新的显卡；第四段指出，即使电脑可以使用Vista也不是必须升级，对于硬件配置不够高的电脑用户，最好购买新的电脑；最后又指出，如果不想升级也不必烦恼，可以继续使用WindowsXP。综合可知，文章主要论述电脑用户是否准备好使用vista的问题，所以C正确。+我要找茬+加入错题+收藏该题评论此题PassageTwoAreportonanewsoftwarethatenableseyestodothetypingappearsinWednesday'seditionofthejournalNature.Replacingakeyboardormouse,eye-scanningcamerasmountedoncomputershavebecomenecessarytoolsforpeoplewithoutlimbsorthoseaffectedwithparalysis.Thecameratracksthemovementoftheeye,allowingusersto"type"onavirtualkeyboardasthey11/46六级阅读练习试题lookatthescreen.Andnow,researchersfromtheCavendishLaboratoryatCambridgeUniversitysaytheyhavedevelopedsoftwarethatreplacesthestandardQWERTY(标准的传统键盘)keyboardlayoutwithonethatisnearlytwiceasefficient,moreaccurateandeasierontheeyes.CalledDasher,theprototypeprogramtapsthenaturalgazeoftheeyeandmakespredictablewordsandphrasessimplertowrite.Anyoff-the-shelfcameracapableofscanningeyemovementcanbeusedwithDasher,thoughthepersonmustsitfairlystillduringtheinteraction.Thelettersofthealphabetappearinasinglecolumnontherightofthescreen,withanunderscoresymboltorepresentaspace.Eachletterisframedbyacoloredbox.Astheuserlooksataparticularletterontherightsideofthescreenanddragsittotheleftwiththeireye,anothersub-alphabetcolumnbeginstoemergeinsidetheboxontherighthandside,alongwithmorelettersflamedincoloredboxes.Dasherisdesignedtoanticipatewhichletterwillbeneeded,soalthoughthesuccessivesub-alphabetcolumnsareinitiallyverysmall,thelettersorcombinationoflettersthatsimultaneouslyappeararemostlikelytobeusednextinthatsequence.Forexample,ifapersonstartswiththeletter"h",thelanguagemodelsinDasherwillbringup"a","e","i","o"and"u"inthesub-alphabetbox,alongwithafewotherpossiblecombinationslike"hello"toformtheword"hello".Eachboxhasacompletealphabetwithinit,thoughthefirstletterstoappearhavethehighestprobabilityofusage.Thelettersarethenplacedtogethertoformasentenceontheleftsideofthescreen.Researcherssaypeoplewillbeabletowriteupto25wordsperminutewithDashercomparedtoon-screenkeyboards,whichtheysayaverageabout15wordsperminute.Withabitofpractice,MacKaysaid,Dasheroffersaneasierandmoresatisfyingwayfordisabledpeopletocommunicate,providingthemwithbettertoolstowritee-mailorcreatewordprocessorfiles.MacKaysaidDashercouldworkinmostlanguages.26"Paralysis"(Line4,Para.1)mostprobablymeans.short-sightednessallergyinabilitytomovecolor-blindness［正确答案］C［您的答案］本题分值：1分您的得分：0分试题解析：语义题。被考查词所在句意为“安装在电脑上的眼部扫描照相机取代了键盘或鼠标，对于那些四肢残缺或受到影响的人而言，该眼部扫描照相机成为了必要的工具。”由句中的最后一个or可知，被考查词的含义与“四肢残缺”相近或相关，结合选项可知，此处指的应该是四肢无法活动，所以C正确。+我要找茬+加入错题+收藏该题评论此题27WiththenewsoftwareDasher,peoplecantypewiththeireyesthrough.acomputerscreenwitheye-scanningsensorsaneye-scanningcameraonthecomputeracoloredboxattachedtothecomputeraregularkeyboardwithsensors［正确答案］B［您的答案］12/46六级阅读练习试题本题分值：1分您的得分：0分试题解析：推断题。文章第一段第二、三句指出，安装在电脑上的眼部扫描照相机代替了键盘和鼠标，照相机追踪眼睛的运动，使得使用者可以在看屏幕时在虚拟键盘上打字，由此推断，使用者是借助电脑上的眼部扫描照相机来打字的，所以B正确。+我要找茬+加入错题+收藏该题评论此题28Thenewmethodoftypingwillmostbenefitthosepeoplewho.havereadingdifficultiesarephysicallychallengedarevisuallyincompetentdonothaveabigvocabulary［正确答案］B［您的答案］本题分值：1分您的得分：0分试题解析：推断题。由文章第一段第二句可知，对于那些四肢残缺或瘫痪的人而言，新软件将成为必要的工具，由此推断，最能从新的打字方式中受益的是四肢残疾的人，所以B正确。+我要找茬+加入错题+收藏该题评论此题29WecanknowfromthispassagethatthesoftwareDasher,isabletopredictthenextsequenceofwordstheuserisgoingtowritedoesnotallowtheusertomovealotduringtheinteractionhastobeusedwitheye-scanningcamerasspeciallydesignedforthesoftwarecanformcoherentsentencesbasedonthefirstwordtypedinbytheuser［正确答案］B［您的答案］本题分值：1分您的得分：0分试题解析：细节题。文章第一段最后一句指出，该软件可以和任何有扫描眼部运动功能的照相机兼容，但是用户在使用过程中必须尽量静坐不动，由此可知，该软件无需特制的眼部扫描照相机，但要求用户在使用过程中不能做太多的动作，故排除C，确定B为答案。第二段第三句提到，该软件可以预测接下来需要什么字母，但并未提到它可以预测用户所要写的单词的顺序，也未提到它可以依照用户输入的第一个单词形成连贯的句子，故排除A、D。+我要找茬+加入错题+收藏该题评论此题30WhichofthefollowingisTRUEaboutDasher?Itcanbeusedtowrite15morewordsthanon-screenkeyboard.Itiseasiertousethanordinarykeyboards.Itcanprovidehintsforpossibleletterstobewritten.Itisanindependenttextprocessor.［正确答案］C［您的答案］本题分值：1分您的得分：0分试题解析：推断题。文章第二段第三句提到，Dasher软件有联想输入功能，它可预测用户接下来需要什么字母，尽管列出的字母开始很少，但列出的字母和字母组合则是最有可能在随后用到的，13/46六级阅读练习试题由此推断，该软件对于可能用到的字母会有提示，所以c正确。文章最后一段首句提到，使用该软件每分钟最多可以输入25个单词，而利用屏幕键盘平均每分钟能输入15个单词，由此可知，与利用屏幕键盘相比，利用该软件每分钟可以多输入10个单词，而并非15个单词，故排除干扰项A。+我要找茬+加入错题+收藏该题评论此题PassageThreeNearlysixyearsafterthesequenceofthehumangenomewassketchedout,onemightassumethatresearchershadworkedoutwhatallthatDNAmeans.Butanewinvestigationhasleftthemwonderingjusthowsimilaroneperson'sgenomeistoanother's.GeneticistshavegenerallyassumedthatyourstringofDNA"letters"is99.9%identicaltothatofyourneighbor's,withdifferencesintheoddindividualletter.Thesedifferencesmakeeachpersongeneticallyunique-influencingeverythingfromappearanceandpersonalitytosusceptibilitytodisease.Butholdon,saytheauthorsofanewstudypublishedinNature.Theyhaveidentifiedsurprisinglylargechunksofthegenomethatcandifferdramaticallyfromonepersontothenext."Everyonehasauniquepattern,"saysoneoftheleadauthors,MatthewHurlesattheWelcomeTrustSangerInstituteinCambridge,U.K.Thedifferencesinquestion-madeupofstretchesofDNAthatspantenstohundredsofthousandsofchemicalletters--arecalled"copy-number