高考英语二轮复习 专题三 阅读理解 第三节 题组训练 2 科普知识

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1、我带领班子成员及全体职工，积极参加县委、政府和农牧局组织的政治理论学习，同时认真学习业务知识，全面提高了自身素质，增强职工工作积极性，杜绝了纪律松散第三节题组训练2科普知识A(2017·河东区一模)Doyoueverwishforalittlemoretimetodoeverythingyouneedtodo？Well，onJuly1you’llbegettingit—butonlyonemoresecond.OnJuly1atexactly7：59：59a．m.Beijingtime(oronJune30at23：59：59UTC，Coordina

2、tedUniversalTime)，theworld’satomic(原子的)clockswillpauseforasinglesecond，or，moreprecisely，changetotheunusualtimeof7：59：60，accordingtotheverge.com.Theadditionofaleapsecond(闰秒)，announcedbytheParisObservatory，istokeepourclocksintimewiththeslowingofEarth’srotation(旋转)andastronomicalt

3、imeasmeasuredbythesun.Justoneextrasecondcouldcausebigproblemsandaffectthewaycomputersandwebsiteswork，however.Whenthelastleapsecondwasaddedbackin2012，morethanafewwebsiteshadsometrouble.AsreportedbyPhys.org，popularsiteslikethecommunitywebsiteRedditcrashedwhentheleapsecondwasadded

4、.ForReddit，theproblemwaseventuallyfoundtobewithaLinuxsystemthatgotconfusedwhenitcheckedthenetworktimeandfoundanextrasecond.SpeakingtoWiredabouttheproblembackin2012，LinuxcreatorLinusTorvaldscommented：“Almosteverytimewehavealeapsecond，wefindsomething.It’sreallyannoying，becauseit’

5、scode(代码)thatisalmostneverused，andthusnottestedbyusersundertheirnormalconditions.”Companieshavehadtothinkoftheirownsolutions，andGoogle’s“leapsmear”maybethebest-knownexample.AscompanyengineerChristopherPascoeexplainsinablogpost，companiesusuallytrytofixtheproblembyturningbackthec

6、locks经过专家组及技术指导员的共同努力，科技入户工作取得了很大的成绩，促进了小麦产量的大幅提升，农民种粮收益明显提高，得到了广大群众的一致赞许和社会各界的广泛好评。我带领班子成员及全体职工，积极参加县委、政府和农牧局组织的政治理论学习，同时认真学习业务知识，全面提高了自身素质，增强职工工作积极性，杜绝了纪律松散byonesecondattheendofthedaysothattheyplaythatsecondagain.However，Pascoebelievesthiscreatesproblems.Heasked：“Whathappens？

7、Doese-mailthatcomesinduringthatsecondgetstoredcorrectly？”Googlehasasolution：Cuttheextrasecondintomillisecondsandthenputthesetinyamountsoftimeintothesystemthroughouttheday.“Thismeansthatwhenitbecametimetoaddanextrasecondatmidnight，”saysPascoe.“Ourclockshavealreadytakenthisintoac

8、countoverthecourseoftheday.”FormanycompanieswithoutGoo