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、Floods. B、Continental drift. C、Comet or meteor strikes. D、Extreme temperatures. D
A、Floods. B、Continental drift. C、Comet or meteor strikes. D、Extreme temperatures. D
admin
2015-01-10
29
问题
When I tell people what my particular branch of science is, I often get funny looks. In a way, I understand because astrobiology is the study of life on other planets. Well, obviously, life has not been discovered on other planets, which would appear to make astrobiology a science without a subject! However, everything we know about life on our own planet suggests we have to try to understand if there are any universal requirements for life to evolve, as well as the processes involved in evolution. Consequently, scientists are deeply interested in the beginnings of life on Earth. Once we know more about what happened on home ground, as it were, we will be in a better position to understand any life forms we may one day find on other planets.
When most people think of extra-terrestrial life, they conjure up images of so-called "higher" life forms: they imagine humanoid creatures or bizarre and probably dangerous animals of some kind. But if we consider the whole history of life on Earth, a very different picture emerges. For billions of years the only forms of life on the planet were organisms consisting of single cells. It was only about 550 million years ago that the seas suddenly became filled with a whole array of multicellular life.
So how do humans fit into this time frame? Well, human-like creatures first appear in the fossil record about five or so million years ago: in geological terms, this is just a blink of an eye compared to the long history of life on Earth. And Homo sapiens, our own species, has only been around for about 130,000 years. The point is if we do find life on other planets, it will almost certainly be relatively simple, of the sort that populated the Earth for most of its existence so far.
And of course, we must be prepared for these life forms to look very different from life on Earth. We must not forget that many modern life forms came about as a result of chance, their fate shaped by floods, continental drift and comet or meteor strikes. It is interesting to reflect that if a giant asteroid had not hit the Earth and wiped out the dinosaurs, they might still be ruling the planet and we might never have evolved.
Question No. 16 Which of the following does astrobiology study?
Question No. 17 When telling people what branch of science he studies, why does the speaker often get funny looks?
Question No. 18 With what life forms did the seas suddenly become filled some 550 million years ago?
Question No. 19 For how long has Homo sapiens, our own species, has been existing on Earth?
Question No. 20 Many modern life forms came about as a result of a series of chance factors. Which of the following is NOT one of these factors mentioned in the talk?
选项
A、Floods.
B、Continental drift.
C、Comet or meteor strikes.
D、Extreme temperatures.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/1DSO777K
本试题收录于:
NAETI高级口译笔试题库外语翻译证书(NAETI)分类
0
NAETI高级口译笔试
外语翻译证书(NAETI)
相关试题推荐
Ourcountryhasovertakenandoutstrippeddevelopedcountriesinsomescientific.
AGreatFriendshipThomasJeffersonandJamesMadisonmetin1776.Couldithavebeenanyotheryear?Theyworkedtogethers
AccordingtotherecentresearchofNortheasternUniversity,our________sensitivitydecreaseswithage.Byage60,mostpeopleh
VisitorstoBritainmayfindthebestplacetosamplelocalcultureisinatraditionalpub.Butthesefriendlyhostelriescanb
ThehappiestpeopleintheworldmayliveinScandinavia,anewstudysuggests.That’saccordingtotheUnitedNationsGeneralA
Whenonehasgoodhealth,________shouldfeelfortunate.
Scientistsaremakinghugestridesinbattlingoneofthetopthreekillerdiseasesintheworld:cancer.
WhenFacebooksaiditwouldstartadatingserviceinColombiainSeptember,ErikaRamossignedup.Single,35,livinginBo
A、Byconstantbuying.B、Bygivingupcreditspending.C、Byconsultingpsychologists.D、Noway.C掌握信号词的用法,在本题相关原文中inthesameway
A、Theytoleratedistractions.B、Theyoftenfindthemselvesinhotwater.C、Theyaregenerallylazy.D、Theyarecriticaltofamil
随机试题
将出版物按类归并的方法是,从()逐级归并。
某市市区已被集中供热管网全部覆盖,为进一步提高服务质量,位于市中心的某五星级酒店拟新建一台燃煤供热锅炉,依据《大气污染防治法》,该项目()。
证券公司从事介绍业务时,与期货公司签订的书面委托协议应当载明的事项包括()。I.介绍业务的范围Ⅱ.介绍业务对接规则Ⅲ.执行期货保证金扣缴制度的措施Ⅳ.客户投诉的接待处理方式
发卡银行不得向未满()周岁的客户核发信用卡(附属卡除外)。
对在建工程项目发生的净损失,如为非常损失造成的报废或毁损,应将其净损失记入()科目。
ItistheEnglishChannel______separatesEngland______France.
据交通部去年对全国十个大城市的统计,S市的汽车交通事故率最低。S市在前年实施了汽车特殊安检制度,提高了安检的标准和力度。为了有效降低汽车交通事故率,其他大城市也应当像S市那样,对本市的汽车实施特殊安检。以下哪项如果为真,最能削弱题干的论证?
Wheredoestheconversationtakeplace?
Humansarefascinatedbythesourceoftheirfailingsandvirtues.Thispreoccupationinevitablyleadstoanolddebate:whether
A、Shecanmakealotoffriends.B、Shecanworkmoreefficiently.C、Shecanlearnmentaldiscipline.D、Shecangetmorefamiliar
最新回复
(
0
)