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
2024-02-28
7
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://www.tihaiku.com/zcyy/3489384.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
[originaltext]M:Hello.UniversityBocks.TimWeberspeaking.W:Hi.Tim,thisis
Regulatedchangeisoftenareactiontoaproblem______thehumanbodyreactsto
配电箱和开关箱中的隔离开关可采用普通断路器。()
患者,男性,50岁。双下肢剧烈疼痛2小时。查体:双下肢股动脉搏动消失,双股以下皮
下列有关肾性急性肾衰竭的描述错误的是A.分为少尿期、多尿期、恢复期 B.尿比重
D公司2017年和2018年12月31日财务报表部分项目金额如下: 假定D
共用题干 男,48岁。右下第一磨牙缺失3个月,余留牙健康,拟固定义齿修复。如果
从预警对象上看,农产品质量安全预警的分类不包括( )。A.过程风险分析预警
男,26岁。周期性上腹痛3年。空腹及夜间加重,进食后缓解。13C尿素呼气试验阳性
某工程施工项目进行总承包招标,合同估算价位3000万元,则要求投标方提供的投标保
最新回复
(
0
)