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
64
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、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
语义理解题。讲话者开始讲到2000年以前,人们就地球到底是圆形的平面还是一个立体的圆球进行了争论,双方的观察都是基于肉眼直接观察的结果。因此B项正确。
转载请注明原文地址:https://kaotiyun.com/show/956K777K
0
专业英语四级
相关试题推荐
Inordertokeeptheirstudentssafe,alotofschooladministratorsareconsideringinstallingsecuritycameras.Installingcam
HowtoBondwithYourBossHavingagoodrelationshipwithyourbosshaspositiveimpactonyourcareer.Accordingtorese
HowtoBondwithYourBossHavingagoodrelationshipwithyourbosshaspositiveimpactonyourcareer.Accordingtorese
TherelationshipbetweenlanguagelearningstrategypreferencesandEnglishproficiencyamongstudentspuzzlesmanyEnglish
(1)Iremembermeetinghimoneeveningwithhispushcart.Ihadmanagedtosellallmypapersandwascominghomeinthesnow.It
(1)Iremembermeetinghimoneeveningwithhispushcart.Ihadmanagedtosellallmypapersandwascominghomeinthesnow.It
(1)FredericChopinwasborninZelazowaWola,Poland,onFebruary22,1810,toaFrenchfatherandPolishmother.Hisfather,N
A、English.B、French.C、Bengali.D、Spanish.C对话中明确提到Chitra的母语是“孟加拉语”(Bengali)。考生就算不知道Bengali的意思,但听音辩形也能选出答案。
PASSAGETHREEWhat’sthispassagemainlyabout?
Technologiescollapsethedistancebetweenadesireanditsfulfillmentbyreducingeitherthetimeortheeffortinvolved.
随机试题
巨幼红细胞贫血的血象变化包括
最多见的直肠肛管周围脓肿是
患者,男性,50岁。高血压18年,上班中出现头晕、头痛,血压180/100mmlHg,同事将其送往医院治疗,不久症状好转,诊断短暂性脑缺血发作。这种发作最常见的病因是
【2005年第55题】粉煤灰硅酸盐水泥具有以下何种特性?
互斥型方案经济效果评价的准则有()。
下列经济业务所产生的现金流量中,属于“经营活动产生的现金流量”的是()。
以下各项中,属于的是认为贷款或信用卡的逾期记录与实际不符的异议类型的是()。
新技术和新媒体的出现,使人的阅读内容、阅读媒介、阅读习惯发生了变化,呈现多元化、数字化、个性化的特点,读者被多样化地细分,“界面”阅读受到年轻人__________。伴随便利而来的是娱乐化的泛滥,这是一个泛娱乐化的时代,一切文化都心甘情愿地成为娱乐的___
经济增加值[中山大学2014金融硕士]
生产力决定生产关系,生产关系反作用于生产力,_______________________________,这三项内容构成生产关系必须适合生产力性质的规律。这是人类社会发展最基本、最普遍的规律。
最新回复
(
0
)