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
Geography and Movement To understand how astrology works, we should first take a quick look at the sky. Although the stars
Geography and Movement To understand how astrology works, we should first take a quick look at the sky. Although the stars
admin
2010-01-14
76
问题
Geography and Movement
To understand how astrology works, we should first take a quick look at the sky. Although the stars are at enormous distances, they do indeed give the impression of being affixed to the inner surface of a great hollow sphere surrounding the earth. Ancient people, in fact, literally believed in the existence of such a celestial sphere. As the earth spins on its axis, the celestial sphere appears to turn about us each day, pivoting at points on a line with the earth’s axis of rotation. This daily turning of the sphere carries the stars around the sky, causing most of them to rise and set, but they, and constellations they define, maintains fixed patterns on the sphere, just as the continent of Australian maintains its shape on a spinning globe of the earth. Thus the stars were called fixed stars.
The motion of the sun along the ecliptic is, of course, merely a reflection of the revolution of the earth around the sun, but the ancients believed the earth was fixed and the sun had and independent motion of its own, eastward among the stars. The glare of sunlight hides the stars in daytime, but the ancients were aware that the stars were up there even at night, and the slow eastward motion of the sun around the sky, at the rate of about thirty degrees each month, caused different stars to be visible at night at different times of the year.
The moon, revolving around the earth each month, also has an independent motion in the sky. The moon, however, changes it position relatively rapidly. Although it appears to rise and set each day, as does nearly everything else in the sky, we can see the moon changing position during as short an interval as an hour or so. The moon’s path around the earth lies nearly in the same plane as the earth’s path around the sun, so the moon is never seen very far from the ecliptic in the sky. There are five other objects visible to the naked eye that also appear to move in respect to the fixed background of stars on the celestial sphere. These are the planets Mercury, Venus, Mars, Jupiter, and the Saturn. All of them revolve around the sun in nearly the same plane as the earth does, so they, like the moon, always appear near the ecliptic. Because we see the planets from the moving earth, however, they behave in a complicated way, with their apparent motions on the celestial sphere reflecting both their own independent motions around the sun and our motion as well.
The ancient people believed that______.
选项
A、the earth was spinning on the axis of the sky
B、the sky was a hollow sphere spinning around the earth
C、the patterns of stars on the sky would never change
D、the stars around the sky were not stationary
答案
C
解析
根据第一段最后两句话,我们可以看出古人认为是地球的转动带动了群星的转动,而群星事实上在天空中保持不变的模式,是恒定的。所以,正确答案应为C。
转载请注明原文地址:https://kaotiyun.com/show/schd777K
本试题收录于:
职称英语理工类基础题库职称英语分类
0
职称英语理工类基础
职称英语
相关试题推荐
ThereisalwaysexcitementattheOlympicGameswhenanathletebreaksapreviousrecordofperformance.
HowOneSimpleMovementCanLetSliptheSecretsoftheMindBodylanguageisthequiet,secretandmostpowerfullanguageofal
A.HowshouldItakeZYBAN?B.WhatisZYBAN?C.WhatarethesideeffectsoftakingZYBAN?D.WhoinventedZYBAN?E.Howlongs
VitaminAcanbefoundinmeat.Morethan1000,000Americansdieoflungcancereveryyear.
TheattackonFortSumternearCharlestonprovokedasharpresponsefromtheNorth,whichledtotheAmericanCivilWar.
FreezingtoDeathforBeautyPeopleinBeijingwearalotofclothingduringwintertofend(抵御)offthecold.IntheUnited
OrganDonationandTransplantation1.Organdonation(捐献)andtransplantation(移植)referstotheprocessbywhichorgansor
PanicApanicisaformofcollectiveinwhichagroupofpeople,facewithanimmediatethreat,reactinanuncoordinateda
MyLifeatRendaIlearnedveryquicklythatbeingateachingassistant(TA)attheUniversityofIowawouldbedifferentfro
TransportandTrade1Transportisoneoftheaidstotrade.Bymovinggoodsfromplaceswheretheyareplentifultoplaceswher
随机试题
甲化工厂和乙造纸厂坐落在一条小河的两岸。化工厂生产中排放三氯化铁残液,造纸厂生产中排放漂液废水,两厂排污浓度均不超过国家规定的排放标准。在河水水位正常情况下,两个工厂排污均不会对河水造成污染。2013年5月该地大旱,河水明显减少,化工厂排放的废水冲入造纸厂
何为最低限价?政府为什么会制定最低价格政策?举出一个例子并指出其可能的不利后果。
软脂肪酸的生物合成是氧化的逆过程。()
糖皮质激素对下列哪种疾病的症状无效
关于肘关节侧位摄影,错误的叙述是
项目的融资内容包括()等。
某国中央银行规定商业银行对居民提供汽车贷款的最低首付款比例是40%,最长还款期限是5年,这种规定属于()。
甲公司2015年年末长期资本为5000万元,其中长期银行借款为1000万元,年利率为6%;所有者权益(包括普通股资本和留存收益)为4000万元。公司计划在2016年追加筹集资金5000万元,其中按面值发行债券2000万元,票面年利率为6.86%,
刘某、李某二人签订汽车买卖合同约定:刘某将汽车以30万元的价格卖与李某,刘某先交车,李某十日后付款。随后,刘某依约定向李某交付汽车,同时为了担保之后李某能如约付款,李某将刚刚到手的汽车又抵押给刘某,并且于当日办理了抵押登记。此后,李某未如约付款,经查,李某
在Java中,3.14156D表示的是【】数。
最新回复
(
0
)