首页
登录
职称英语
In a recent article, mathematician Aczel argues convincingly that the number
In a recent article, mathematician Aczel argues convincingly that the number
游客
2023-07-14
11
管理
问题
In a recent article, mathematician Aczel argues convincingly that the number of planets suit able for life is extremely large. There are about 300 billion stars in our galaxy (银河系) and possibly 100 billion galaxies in the universe. Some may quarrel with Aczel’ s claim that as many as half of these stars can be presumed to have planets, and that on average one in nine of those planets is suitable for life; but few, I think, will disagree with his conclusion that there are a very large number of planets suitable for life.
The trouble starts when we come to estimate the probability that life will emerge on any of these planets. The problem is that we don’ t have a good theory of the origin of life on earth. Without one, it is anybody’ s guess how likely this event actually was. Out of thin air Aczel conjures (想像) the figure of 1 in a trillion for this likelihood and concludes that the probability of life existing on at least one other planet is virtually 1.
Statistics are extremely powerful and important, and Aczel is a very clear and capable exponent (倡导者) of them. But statistics cannot substitute for empirical (经验主义的) knowledge about the way the universe behaves. We now have no reasonable way of arriving at robust estimates for the probability of life arising spontaneously when the conditions are right. So, until we either discover extraterrestrial (外星球的) life or understand far more about how at least one form of life--terrestrial life--first appeared, we can do little more than guess at the likely hood that life exists elsewhere in the universe. And as long as we’ re merely guessing, we should not dress up our interesting speculations as mathematical certainties. [br] According to the passage, what we can do about the likelihood of extraterrestrial life is to ______.
选项
A、find a good way of reaching a conclusion
B、construct a good theory of the origin of life
C、replace statistics with empirical knowledge
D、find whether the conditions for life are right
答案
B
解析
细节题。根据最后一段第四句“So,until we either discover extraterrestrial life or understand far more about how at least one form of life—terrestrial life—first appeared,we can do little more than guess at the likelihood that life exists elsewhere in the universe,”大意是:除非我们发现了外星生物,或至少了解一种地球生命的起源,否则我们对外星生命存在的可能性的判断都只能是猜测而已。可知我们现在所缺乏的是a good theory of the origin of life on earth,故答案为B。
转载请注明原文地址:https://tihaiku.com/zcyy/2836546.html
相关试题推荐
Recentlytherehasbeenagreat______forsmallcarsthatuselittlepetrol.A、c
Theirweddingwillbequitean______i.e.alargenumberofpeoplewillattend.
Internethaslongbeenthefocusofresearch.Recently,alargestudy【C1】___
Internethaslongbeenthefocusofresearch.Recently,alargestudy【C1】___
Internethaslongbeenthefocusofresearch.Recently,alargestudy【C1】___
Internethaslongbeenthefocusofresearch.Recently,alargestudy【C1】___
Internethaslongbeenthefocusofresearch.Recently,alargestudy【C1】___
Internethaslongbeenthefocusofresearch.Recently,alargestudy【C1】___
Internethaslongbeenthefocusofresearch.Recently,alargestudy【C1】___
Internethaslongbeenthefocusofresearch.Recently,alargestudy【C1】___
随机试题
[originaltext]AnewreportfindsthatWestAfricahasbecomeamajorhubof
患儿男,1岁,因剧烈腹泻蛋花水样便入院,查体:前囟眼窝明显凹陷,四肢凉,脉细弱,
体育课程实施过程中人力资源的开发主要包括体育教师、( )、有体育特长的教师、卫
信息披露义务人,是指( )。 Ⅰ股权投资基金管理人 Ⅱ股权投资基金托管人
以小腹胀满疼痛,小便涩滞,淋漓不宣为特征的病证是A.热淋 B.血淋 C.石淋
《变电检测管理规定第6分册铁心接地电流检测细则》:变压器铁心接地电流检测,在变压
关于SWOT分析方法解释正确的是( )。A.S是指企业内部优势 B.W是指企
下列哪项表现为呼吸急促似喘,喉间有哮鸣音A.少气 B.哮 C.气粗 D.短
某公司在新员工甄选过程中采用了人格测试,要求求职者基于自身感受实事求是地填答一套
隧道钻爆法开挖时,炮眼根据围岩的好坏、施工方法的快慢来确定炮眼深度,一般在100
最新回复
(
0
)