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
To understand how astrology works, we should first take a quick look at the sky. Although the stars are at enormous distances, t
To understand how astrology works, we should first take a quick look at the sky. Although the stars are at enormous distances, t
admin
2010-06-30
34
问题
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.
All the other five planets ______.
选项
A、always appear near the path of the sun
B、are moving in a way more complicated than the earth does
C、aren’t moving around the sun as independently as the earth does
D、are moving around the sun at the same speed as the earth does
答案
A
解析
文章最后一句话提到“Because we see the planet from the moving earth,however, they behave in a complicated way,...”,说明行星运行的更为复杂。所以A应为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/SxJd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
communitypolicing
Whatdidthespeakertalkaboutlasttime?
MasstransportationrevisedthesocialandeconomicfabricoftheAmericancityinthreefundamentalways.Itcatalyzedphysical
ThoughPaulisdisabled,hemanagedtomovearoundinthehouse.
AnswerQuestions71to80byreferringtothepassagesonthefollowingpages.AnswereachquestionbychoosingA,B,orCandm
A、Personswhohavesalariesaccordingtolong-termcontracts.B、Personswhoownbusinesses.C、Personswithold-agepensions.D、P
A、Toaskthespeakerquestions.B、TodiscussAnimalFarm.C、TowriteessaysonOrwell’slife.D、Toreadthebook1984.B
Emmagrewupinafamilywithasailingtradition.ReplacingoneoftheropesatthetopofthemastgaveEmmaaveryhardtime
Ithasbeennecessarytoreferrepeatedlytotheeffectsofthetwoworldwarsinpromotingallkindsofinnovation.Itshouldb
Surgeonswillsoonbeabletoentertheeyetocarryoutoperations—atleastinavirtualsense.Techniquesderivedfromvirtual
随机试题
病证的虚实变化,主要取决于()
Hedeclinedtheinvitationinapolitewaybecauseofhispoorhealth.
男性,43岁,间歇性无痛肉眼血尿3个月余。IVP见左肾盂内有不规则充盈缺损,膀胱镜检见右侧输尿管口喷血。应首先考虑
在选择路面各结构层之间搭接类型时,后道工序快于前道工序时,应选择()。
金融衍生品越来越被银行所广泛使用,下列有关金融衍生品的说法,不正确的是()。
企业因综合性项目取得的政府补助,需要将其分解为与资产相关的部分和与收益相关的部分,分别进行会计处理;难以区分的,将政府补助整体归类为与收益相关的政府补助,视情况不同。直接计入当期损益或者在项目期内分期确认为当期损益。()
某公司生产单一产品,实行标准成本管理。每件产品的标准工时为3小时,固定制造费用的标准成本为6元,企业生产能力为每月生产产品400件。7月份公司实际生产产品350件,发生固定制造成本2250元,实际工时为1100小时。根据上述数据计算,7月份公司固定制造
右图为植物体细胞杂交过程示意图。据图回答: 在利用杂种细胞培育成为杂种植株的过程中,运用的技术手段是______,其中步骤④相当于______。
短周期元素形成的常见非金属固体单质A与常见金属单质B,在加热条件下反应生成化合物C,C与水反应生成白色沉淀D和气体E,D既能溶于强酸,也能溶于强碱。E在足量空气中燃烧产生刺激性气体G,G在大气中能导致酸雨的形成。E被足量氢氧化钠溶液吸收得到无色溶液F。溶液
借鉴国外现代化管理经验,是发展智力经济,开发本国智力资源的有效______。()
最新回复
(
0
)