首页
登录
职称英语
[originaltext]Not until somewhat recently (that is, in terms of human history)
[originaltext]Not until somewhat recently (that is, in terms of human history)
游客
2024-03-03
37
管理
问题
Not until somewhat recently (that is, in terms of human history) did people find a need for knowing the time of day. As best we know, 5,000 to 6,000 years ago great civilizations in the Middle East and North Africa initiated clock-making. With their bureaucracies and formal religions, these cultures found a need to organize their time mom efficiently.
The Egyptians were the next to formally divide their day into parts something like our hours. Obelisks (slender, tapering, four-sided monuments) were built as early as 3500 B.C. Their moving shadows formed a kind of sundial, enabling citizens to partition the day into two parts by indicating noon. They also showed the year’s longest and shortest days when the shadow at noon was the shortest or longest of the year. Later, markers added around the base of the monument would indicate further time subdivisions.
Another Egyptian shadow clock or sundial, possibly the first portable timepiece, came into use around 1500 B.C. to measure the passage of "hours". This device divided a sunlit day into 10 parts plus two "twilight hours" in the morning and evening. When the long stem with 5 variably spaced marks was oriented east and west in the morning, an elevated crossbar on the east end east a moving shadow over the marks. At noon, the device was turned in the opposite direction to measure the afternoon "hours".
In the quest for more year-round accuracy, sundials evolved from flat horizontal or vertical plates to more elaborate forms. One version was the hemispherical dial, a bowl-shaped depression cut into a block of stone, carrying a central vertical gnomon (pointer) and scribed with sets of hour lines for different seasons. The hemicycle, said to have been invented about 300 B. C. , removed the useless haft of the hemisphere to give an appearance of a half-bowl cut into the edge of a squared block.
选项
A、Sun clock.
B、Hemicycle.
C、Obelisk.
D、Shadow clock.
答案
D
解析
What is another name for the sundial?
此题考查听细节的能力。sundial为关键词,shadow clock与sundial意为“日晷”。考生须注意“or”和“and”都连接表示同概念的词或短语。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3502086.html
相关试题推荐
[originaltext]Whenwetalkaboutintelligence,wedonotmeantheabilityt
[originaltext]ItwasyearssinceIhadvisitedmyhometownandIwasdeterm
[originaltext]ItwasyearssinceIhadvisitedmyhometownandIwasdeterm
[originaltext]"SesameStreet"hasbeencalled"thelongeststreetinthewo
[originaltext]M:Cindy!Haveyouheardthenews?W:No,Steve.Whatdoyoumean
[originaltext]M:Cindy!Haveyouheardthenews?W:No,Steve.Whatdoyoumean
[originaltext]M:Hey,Jane!What’ssointeresting?W:What?Oh,hi,Tom!I’mre
[originaltext]TheMediterraneanisawordbotheasytopronounceandeasyt
[originaltext]TheMediterraneanisawordbotheasytopronounceandeasyt
[originaltext]TheMediterraneanisawordbotheasytopronounceandeasyt
随机试题
Losingweightiseasierwhenthereismoneyontheline,U.S.researcherss
A.indicativeB.reachC.immediateD.lackE.c
Thispassagemainlytellsthatbeingunemployedisnotallbad.[br]Unemploymen
[originaltext]Hiddenpassengerstravelinginships,trains,orevencarsc
关于自动安平红外激光投线仪表述正确的是()。A.仪器可产生五个激光平面(一个水
固结试验只测定压缩系数时,施加每级压力后测定试样高度变化,以每小时变形达()时,
()是履行教育教学职责的专业人员,承担教书育人,培养社会主义事业建设者和接班人、
图示电路中,已知:U1=U2=12V,R1=R2=4kΩ,R3=16kΩ。S断
下列不属于志愿者需要管理的原因的是()。A.社会越来越关注志愿服务所带来的
参与诺鑫银行移动金融营销的电商中有十多家团购网站,其采用电商模式O2O。那么,
最新回复
(
0
)