首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The subject of this lecture is horology, the science of measuring time. The【D1】______has come a long way since ancient times. It
The subject of this lecture is horology, the science of measuring time. The【D1】______has come a long way since ancient times. It
admin
2013-09-10
50
问题
The subject of this lecture is horology, the science of measuring time. The【D1】______has come a long way since ancient times. It began with such devices as the sundial, where the position of the sun’s shadow marked the hour. Daylight was divided into 12【D2】______, which were longer in the summer and shorter in the winter, simply because the amount of daylight changes with the seasons.
The earliest sundial we know comes from Egypt, which was made of stone. Sundials were used through the classical world, and with time, evolved into【D3】______that could take into account seasonal changes and【D4】______and reflect the hours accurately. This was quite an achievement in technology. Today, sundials can be seen as【D5】______in many gardens
In the 11th century, the Chinese invented the first mechanical clocks. They were large and expensive, and certainly not【D6】______. However, this is the type of clocks we are familiar with today. There have been many developments in clocks and watches since then, and they’ve been greatly improved. However, if your clock or watch makes a【D7】______sound, then it could well be based on the mechanical movements the Chinese developed a thousand years ago!
However, timekeeping has moved on from the mechanical clock. Time has become so important that there is a series of atomic clocks around the world which measure International Atomic Time. Even though many countries have their own calendars,【D8】______ has made it essential that we measure time【D9】______. This standard was set in 1958. Now these atomic clocks are【D10】______over 70 laboratories all over the world.
【D4】
The subject of this lecture is horology, the science of measuring time. The measurement of time has come a long way since ancient times. It began with such devices as the sundial, where the position of the sun’s shadow marked the hour. Daylight was divided into 12 temporary hours, which were longer in the summer and shorter in the winter, simply because the amount of daylight changes with the seasons.
The earliest sundial we know comes from Egypt, which was made of stone. Sundials were used through the classical world, and with time, evolved into more elaborate devices that could take into account seasonal changes and geographical positioning and reflect the hours accurately. This was quite an achievement in technology. Today, sundials can be seen as decorative pieces in many gardens.
In the 11th century, the Chinese invented the first mechanical clocks. They were large and expensive, and certainly not intended for individuals. However, this is the type of clocks we are familiar with today. There have been many developments in clocks and watches since then, and they’ve been greatly improved. However, if your clock or watch makes a ticking sound, then it could well be based on the mechanical movements the Chinese developed a thousand years ago!
However, timekeeping has moved on from the mechanical clock. Time has become so important that there is a series of atomic clocks around the world which measure International Atomic Time. Even though many countries have their own calendars, globalization has made it essential that we measure time uniformly. This standard was set in 1958. Now these atomic clocks are situated in over 70 laboratories all over the world.
选项
答案
geographical positioning
解析
转载请注明原文地址:https://www.kaotiyun.com/show/lekK777K
本试题收录于:
D类竞赛(专科)题库大学生英语竞赛(NECCS)分类
0
D类竞赛(专科)
大学生英语竞赛(NECCS)
相关试题推荐
A.incomeB.polarizationC.transformationsD.oldE.changesF.worseG.relaxedH.therebyI.divisionJ.accompanying
A.exploreB.distinctC.artisticD.inaccessibleE.subjectiveF.highlyG.factualH.declineI.definitivelyJ.currents
A.agreewithB.meaningfulC.shareD.experienceE.demandF.undertakeG.normsH.stuffI.meanJ.regularlyK.natu
A.whileB.darkC.devisedD.whereasE.specificF.agreeableG.regularH.stimulusI.disruptionJ.attainK.seekL
TipsforPlanningaPresentationI.TheculturalstyleofpresentationforEnglishspeakersA【T1】______withonemainidea【T1】___
(1)Naturally,inagroupofanimalsasdiverseasthesnakes,andwithsomanyvariedenemies,therearenumerousdefensivereac
A、Countonthefamily.B、Relyonherbalmedicine.C、Ignoretheirillness.D、Resorttoapsychiatrist.A①选项都是动词原形短语,问题应与行为动作相关。②
A.digB.avoidsC.deliberatelyD.rememberingE.judgingF.eventG.finalH.dis
A、Toshowitisimportanttohaveculturalbackground.B、Toshowthattheclothesdidn’tfitherdaughter.C、Toexpressherange
Terryrarelyspendsmuchmoney______clothes,______?
随机试题
加在晶闸管门极(控制极)上的触发信号电压值一般为()。
在PowerPoint2010中按功能键[F7]的功能是拼写检查。()
A.荚膜B.鞭毛C.普通菌毛D.性菌毛E.芽孢与细菌传递遗传物质有关的是
丙型肝炎病毒感染慢性化的原因不包括()
下列明细分类账户中,可以采用数量金额式的是()明细分类账。
根据保险人的委托,向保险人收取代理手续费,并在保险人授权的范围内代为办理保险业务的单位或个人是()。
在近代中国,协定关税特权逐步为西方列强所共享。反映这一过程的条约包括()
下列关于中国军队,说法正确的一项是()。
关于北京市2013年为群众拟办的重要实事,下列说法错误的是()。
设f(x)在x0的邻域内四阶可导,且|f(4)(x)|≤M(M>0).证明:对此邻域内任一异于x0的点x,有其中x’为x关于x0的对称点.
最新回复
(
0
)