2. 外语
  3. 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

admin2010-01-14  47
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.  
It is stated in astrology that______.
选项 A、the sun is so distant from us that it was hard to follow its motion
B、the sun was moving westward around the sky
C、the motion of the sun is at the rate of about thirty degrees every week
D、the motion of the sun is similar to the revolution of the earth around the sun
答案D
解析 根据第二段第一句话，太阳沿黄道的运动反映了地球的旋转规律，由此可见太阳的旋转与地球的旋转是相似的。所以正确答案应为D。
转载请注明原文地址:https://kaotiyun.com/show/70hd777K
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
随机试题
最新回复(0)