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
According to the speaker, what were the beliefs of the Greek philosophers based upon?
According to the speaker, what were the beliefs of the Greek philosophers based upon?
admin
2010-01-06
24
问题
According to the speaker, what were the beliefs of the Greek philosophers based upon?
In ancient times, many people believed the earth was a flat disc. Well over 2000 years ago, the 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, the 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 ff the earth was spherical. If the 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. The second argument was based on what the Greeks saw during their travels. They noticed that the Noah Star, or Polaris, appeared lower in the sky when they traveled south, in more northernly regions, the North Star appeared to them to be much higher in the sky. By the way, it was also from this difference in the apparent position of the Noah Star that the Greeks first calculate 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. It’s a very good estimate for those writing se long before even the first telescope was invented.
选项
A、They noticed an apparent change in the position of the North Star.
B、They observed eclipses at different rimes of the year.
C、They were the first to estimate the distance between heavenly bodies.
D、They wanted to prove that the Earth was flat.
答案
A
解析
语义理解题。希腊人在旅行的时候发现,当他们在南方的时候北极星在天空中的位置相对较低,而在北方地区的时候,北极星的位置就要高一些。可知,他们观察到的是北极星位置的改变。选项A为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/n56K777K
0
专业英语四级
相关试题推荐
HowtoBondwithYourBossHavingagoodrelationshipwithyourbosshaspositiveimpactonyourcareer.Accordingtorese
TherelationshipbetweenlanguagelearningstrategypreferencesandEnglishproficiencyamongstudentspuzzlesmanyEnglish
PASSAGETWOExplainthemeaningof"Eventhemostluxuriouspalaceofmemoryneedstrashcans."accordingtothecontext(Para
Inmanycountries,itisquitecommonthatuniversitieswouldassignstudentstoshareadormroom.Thefollowingarticlediscus
(1)Anxiousaboutmeetingakeyhiringmanager?Yourjob-searchjittersmaysoonintensifywhenyouconfronttheultimatestress
Currenteconomichardshipshavehadwhatiscalledinconstitutionallawa"disparateimpact":Thecrisishasnotafflictedev
PassageTwoWhatisthepassagemainlyabout?
PassageFourWhatisthispassagemainlyabout?
Technologiescollapsethedistancebetweenadesireanditsfulfillmentbyreducingeitherthetimeortheeffortinvolved.
Inrecentyearsmoreandmorecompanieshaveinvolvedinthetideofincorporatingdownsizingthroughouttheworld.Downsizingi
随机试题
蜗杆、蜗轮常用于传递两轴交错60°的传动。()
饭熟已久,有何长言,周遮乃尔?
月经量少,或点滴即净,色淡无块,头晕眼花,心悸怔忡,面色萎黄,小腹空坠,舌淡脉细。治宜()
《中华人民共和国固体废物污染环境防治法》规定:()经中华人民共和国过境转移危险废物。
简述社区营养管理的主要工作内容。
阅读材料,回答相关问题。在义务教育阶段,由于学生的认知水平还比较低,故初中阶段各学科的课程内容大多为概念的理解与学习。一些早期的探究者是根据简单的联想来解释概念学习的,如果学生能够正确地识别出某个概念的一个例子,就给予强化,告诉他是对的;如果学生对刺激识
[1997年MBA真题]有时为了医治一些危重病人,医院允许使用海洛因作为止痛药。其实,这样做是应当禁止的。因为,毒品贩子会通过这种渠道获取海洛因,对社会造成严重危害。以下哪项为真,最能削弱以上的论证?
以下不能设置Picture属性的控件是
GenerationsofAmericanshavebeenbrought【C1】______tobelievethatagoodbreakfastisimportantforhealth.Eatingbreakfast
OurGreatestPossessionManiscalledinGreektheZoonphonantawhichmeansthe【1】______.What【1】______makeshumanitydiff
最新回复
(
0
)