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
A、They believe the universe is unchanging. B、They accept the idea of an expanding universe. C、They think the stars attract one a
A、They believe the universe is unchanging. B、They accept the idea of an expanding universe. C、They think the stars attract one a
admin
2013-08-12
26
问题
Today most astronomers accept the notion that groups of stars that make up the universe are all moving farther and farther away from each other, but until very recently this idea of an expanding universe was not a theory most European scholars believed in since ancient times. And up to about the 17th century most of these scholars thought the size of the universe has remained unchanged since the moment of its creation or perhaps forever, with all the stars remaining more or less in place in relation to each other, but that was challenged in the late 17th century by Issac Newton’s idea of gravity as a force of attraction, which contradicted the idea of a universe that is static, unchanging. If gravity causes all the stars out there in space to attract each other as Newton said, then they couldn’t remain motionless. Sooner or later all the stars will fall in towards each other. Well, scientists then propose a new model. Taking Newton’s theory into account, they didn’t want to abandon the idea of motionless status, but for this model to work, they had to modify Newton’s law of gravity, so they theorized that for distance as large as those between stars, the gravitation force repels rather than attracts. As you might guess, there are other contradictions. But this is pretty resolved by the currently accepted theory, which says the universe is continuously expanding. You’ll be reading all about that as your homework tonight.
26. What does the speaker say about most astronomers today?
27. What did most European scholars believe about the size of the universe before 17th century?
28. What did some scientists try to explain by suggesting that stars repel each other?
选项
A、They believe the universe is unchanging.
B、They accept the idea of an expanding universe.
C、They think the stars attract one another.
D、They try to propose a new model.
答案
B
解析
短文一开篇便提到,今天的大多数天文学家都接受了宇宙膨胀说(expanding universe),选B。
转载请注明原文地址:https://kaotiyun.com/show/sD97777K
0
大学英语六级
相关试题推荐
A、Peopleshowgreatermentalabilitiesinmildweatherthaninextremelyhotorcoldweather.B、Heathaslesseffectonpeople’s
A、Beingoutdoors.B、Thebadweather.C、Thedangerofdrivingatnight.D、Dealingwithdifferentpeople.C对话中男士问女士工作中有没有unpleasan
A、Hisgeneralhealthwillbenefitgreatly.B、Hewillbegintobreathemoreregularly.C、Hisflexibilitywilldecrease.D、Hewill
A、Hecan’taffordtobuytheticket.B、Heneedsabreakfromthemathproblem.C、Hedoesn’twanttogototheopera.D、He’llmee
TheancientChinesebelievedthattheearth______.AncientChineseastronomycouldbeaccuratelydescribedas______.
SmugglerstrytobringillegalitemsintotheUnitedStateseveryday.Peoplewhotraveltoforeigncountriessometimestrytoa
A、Thelocalgovernment.B、Theinternetuser.C、Somespecialorganization.D、Nonehasbeenmentioned.D短文提到没有任何个人、国家、组织或公司可以负责整个网
A、Ashippingcompany.B、Aconsultingcompany.C、Anaccountingcompany.D、Aheadhuntingcompany.B对话中女士针对男士的简历给了很多建议,可见女士是在一家咨询公司
A、Itwasnotreallyamagazine.B、Itfeaturedavarietyofarticlesandstories.C、Itwaspraisedbyreadersofpoetry.D、Itwas
A、Hewillstarttofindanotherjob.B、Hewillmakeanadvertisementonnewspaper.C、Hewillprepareforthejobinterview.D、He
随机试题
设备监理管理体制为()。
属于免疫机制引起白细胞减少的是
患者,男性,28岁,因外出春游出现咳嗽、咳白黏痰伴喘息1天入院,体检:体温36.5℃,脉搏90次/分,呼吸28次/分,血压120/80mmHg,在肺部可闻及广泛哮鸣音,既往有支气管哮喘史。患者进一步表现为发绀明显、端坐呼吸、大汗淋漓,24小时经一般解痉
中国大学生李三由于在英国留学数年后定居英国,其与某英国慈善机构签订一份财产赠与合同,将其购买彩票中奖的100万英镑捐赠于该英国慈善机构,李三母亲得知后,遂向我国法院要求以李三不满18岁为限制民事行为能力人为由撤销该赠与合同,我国法院可以依据以下哪国法律认定
下列有关长期股权投资的表述中,不正确的有()。
下列各项中,企业可以采用现金进行支付的有()。
保本浮动收益理财计划是指商业银行按照约定条件向客户支付保证本金,本金以外的投资风险由客户与银行共同承担,并依据实际投资收益情况确定客户实际收益水平的理财计划。()
2011年12月24日,跨越长江、连接沪苏的快速通道()正式建成通车。大桥由于地处长江入海口,是所有跨越长江大桥中最靠近大海的,被称为“长江入海第一桥”。
设随机变量X与Y均服从正态分布,X~N(μ,42),Y~N(μ,52),记p1=P{X≤μ-4),p2=P{Y≥μ+5),则()
______the1500s______thefirstEuropeanexploredthecoastofCalifornia.
最新回复
(
0
)