首页
登录
职称英语
[originaltext] In ancient times, many people believed tile earth was a flat
[originaltext] In ancient times, many people believed tile earth was a flat
游客
2023-07-27
54
管理
问题
In ancient times, many people believed tile earth was a flat disc. Well over 2,000 years ago, rite ancient Greek philosophers were able to put forward two good arguments proving that it was not. Direct observations of heavenly bodies was the basis of both these arguments. First, the Greeks knew that during eclipses of the moon, file earth was between the sun and the moon, and they saw that during these eclipses, the earth’s shadow on the moon was always round, they realized that this could be true only if the earth was spherical. If tile earth were a flat disc, then its shadow during eclipses would not be a perfect circle, it would be stretched out into a long ellipse. Tile second argument was based on what the Greeks saw during their travels. They noticed that the North Star, or Polaris, appeared lower in the sky when they traveled south, in more northern regions, the North Star appeared to them to be much higher in file sky. By the way, it was also from this difference in the apparent position of the North Star that the Greeks first calculated the approximate distance around the circumference of the earth, a figure recorded in ancient documents says 400,000 stadia, that’s the plural of the word stadium. Today, it’s not known exactly what length one stadium represents, but let’s say, it was about 200 meters, the length of many athletic stadiums. This would hake the Greek’ s estimate about twice the figure accepted today, a very good estimate for those writing so long before even the first telescope was invented.
选项
A、How the natural world was described in Greek mythology.
B、What they observed directly.
C、The writings of philosophers from other societies.
D、measurements made with scientific instruments.
答案
B
解析
细节题。关键句:Direct observations of heavenly bodies were the basis of both these arguments.
转载请注明原文地址:https://tihaiku.com/zcyy/2873124.html
相关试题推荐
AllthepeopleworkingforSamWaltonadmire______.(他管理沃尔玛公司的方法和他对待员工的方式).thew
YoungpeopleintheUnitedStateshaveawidevarietyofinterestsapart【C1】____
YoungpeopleintheUnitedStateshaveawidevarietyofinterestsapart【C1】____
YoungpeopleintheUnitedStateshaveawidevarietyofinterestsapart【C1】____
YoungpeopleintheUnitedStateshaveawidevarietyofinterestsapart【C1】____
YoungpeopleintheUnitedStateshaveawidevarietyofinterestsapart【C1】____
YoungpeopleintheUnitedStateshaveawidevarietyofinterestsapart【C1】____
YoungpeopleintheUnitedStateshaveawidevarietyofinterestsapart【C1】____
YoungpeopleintheUnitedStateshaveawidevarietyofinterestsapart【C1】____
YoungpeopleintheUnitedStateshaveawidevarietyofinterestsapart【C1】____
随机试题
WhilemuchoftheUnitedStatesofAmericaputProhibitiontorest73years
[originaltext]M:Oneofthemostcommonquestionsweaskaboutpeople’sbehavio
Thegrandmotherdidn’twanttogotoFlorida.Shewantedtovisitsomeofhe
TheWhiteHouse,growingconcernedthattheCongressionaltimetablefor
艾滋病防治工作坚持__的方针。
包老师在高中美术鉴赏课中,组织学生以学习小组的形式,自主备课并当“小老师”上课,
一孕妇,孕6月余,小便频数,艰涩刺痛,尿少色黄,伴面赤心烦,喜冷饮,舌上溃疡,舌
目前,我国个人住房抵押贷款额度的上限为所购住房价值的80%,贷款期限最长不超过4
下列关于集团财务报表整体重要性与组成部分重要性的关系的说法中,错误的有()
对于膝关节骨关节炎的叙述,正确的是A.负重较少 B.尽早行人工关节表面置换术
最新回复
(
0
)