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、The author is optimistic. B、The author is pessimistic. C、The author is aggressive. D、The author is ambitious. A文中最后一句提到" there
A、The author is optimistic. B、The author is pessimistic. C、The author is aggressive. D、The author is ambitious. A文中最后一句提到" there
admin
2013-01-22
55
问题
Many scientists today are convinced that life exists elsewhere in the universe. Life probably much like that on our own planet. As far as astronomers can determine, the entire universe is built of the same matter. (26) They have no reason to doubt that matter obeys the same laws in every part of the universe. Therefore, it is reasonable to guess that other stars, with their own planets, were born in the same way as our own solar system. What we know of life on earth suggests that life will arise wherever the proper conditions exist.
If we suppose that every star in the universe has a family of planets, then how many planets might support life? (27)First, eliminate those stars that are not like our sun. Next. eliminate most of their planets; they are either too far from or too close to their suns. Then eliminate all those planets which are not the same size and weight as the earth. Finally, remember that the proper conditions do not necessarily mean that life actually does exist on a planet. It may not have begun yet, or it may have already died out.
This process of elimination seems to leave very few planets on which earthlike life might be found. However. even if life could exist on only one planet in a million, (28) there are so many billions of planets that this would still leave a vast number on which life could exist.
选项
A、The author is optimistic.
B、The author is pessimistic.
C、The author is aggressive.
D、The author is ambitious.
答案
A
解析
文中最后一句提到" there are so many billions of planets that this would still leave a vast number on which life could exist"..还有无数的星球为生命的存在提供可能。所以作者的态度仍然是乐观的,故正确答案为A。
转载请注明原文地址:https://kaotiyun.com/show/6BI7777K
0
大学英语六级
相关试题推荐
Readingbecamedifficultfortheoldlady,sotheoptician______glasses.
A、Tallenoughforthemtobuildnests.B、Shortsothatbirdscanfind.C、Itdoesn’tmattersinceallbirdslikeboth.D、Itdepen
Newtechnologylinkstheworldasneverbefore.Ourplanethas【26】It’snowa"globalvillage"wherecountriesareonlysecondsa
Newtechnologylinkstheworldasneverbefore.Ourplanethas【26】It’snowa"globalvillage"wherecountriesareonlysecondsa
Newtechnologylinkstheworldasneverbefore.Ourplanethas【26】It’snowa"globalvillage"wherecountriesareonlysecondsa
Anorganization’sreputation,profitability,andevenitscontinuedexistencecandependonthedegreetowhichitstargetedpub
Formanyyears,peoplebelievedthatthebrain,likethebody,restedduringsleep.Afterall,wearerenderedunconsciousbysl
Afirmwhichdismissesanemployeeonthegroundsofredundancyisobligedto_______himforlossofemployment.
A、Doubtful.B、Confident.C、Unsure.D、Neutral.B推理判断题。短文指出,AdrianBejan和EdwardJones认为,这一理论完全可以说明现在奥运会体育项目中种族隔离越来越明显的原因。根据complet
Scientistshavecomeupwithatheoryforwhytimeflieswhenyonarehavingfunanddragswhenyouarebored.Scanshavesh
随机试题
Squirrelspryoffthecapsofacorns,bitethroughtheshellstogetatthenutritiousinnerkernels,andthendiscardthemhalf
初产妇,30岁,妊娠38周,自然分娩一健康男婴,阴道侧切,胎盘也正常娩出。产后1小时发现产妇面色苍白,出冷汗,阴道流血量较多,主诉头晕,心慌和口渴。血压11.97/6.65kPa(90/50mmHg),脉搏每分钟120次。既往血小板减少症,无高血压及低血压
全肺切除术后放置胸腔闭式引流管的目的是
人体器官功能系统不包括
男性,44岁,胃窦部溃疡在硬膜外麻醉下行胃大部切除术,手术顺利,术后安返病房。首选的辅助检查是()。
根据《关于加强小型病险水库除险加固项目验收管理的指导意见》(水建管[2013]178号),法人验收应成立验收工作组。对于单位工程验收,应参加验收会议的单位包括()。
按照并购双方的业务性质来分,企业并购分为()。
简述我国宪法关于社会保障权的规定。
下列关于消费税的有关规定中,表述正确的是()。
Manytheoriesconcerningthecausesofjuveniledelinquency(crimescommittedbyyoungpeople)focuseitherontheindividualor
最新回复
(
0
)