首页
登录
职称英语
For centuries, explorers have risked their lives venturing into the unknown
For centuries, explorers have risked their lives venturing into the unknown
游客
2025-03-19
15
管理
问题
For centuries, explorers have risked their lives venturing into the unknown for reasons that were to varying degrees economic and nationalistic (国家主义的). Columbus went west to look for better trade routes to the Orient and to promote the greater glory of Spain. Lewis and Clark journeyed into the American wilderness to find out what the U. S. had acquired when it purchased Louisiana, and the Appolo astronauts rocketed to the moon in a dramatic show of technological muscle during the cold war.
Although their missions blended commercial and political-military imperatives, the explorers involved all accomplished some significant science simply by going where no scientists had gone before.
Today Mars looms (隐约出现) as humanity’s next great terra incognita (未探明之地). And with growing emphasis on international cooperation in large space ventures, it is clear that imperatives (需要, 必要) other than profits or nationalism will have to compel human beings to leave their tracks on the planet’s reddish surface. Could it be that science, which has long played a minor role in exploration, is at last destined to take a leading role? The question naturally invites a couple of others: Are there experiments that only humans could do on Mars? Could those experiments provide insights profound enough to justify the expense of sending people across interplanetary space?
With Mars the scientific stakes are arguably higher than they have ever been. The issue of whether life ever existed on the planet, and whether it persists to this day, has been highlighted by mounting evidence that the Red Planet once had abundant stable, liquid water and by the continuing controversy over suggestions that bacterial fossils rode to Earth on a meteorite (陨石) from Mars. A more conclusive answer about life on Mars, past or present, would give researchers invaluable data about the range of conditions under which a planet can generate the complex chemistry that leads to life. If it could be established that life arose independently on Mars and Earth, the finding would provide the first concrete clues in one of the deepest mysteries in all of science: the prevalence of life in the universe. [br] At present, a probable inducement (诱因) for countries to initiate large-scale space ventures is______.
选项
A、international cooperation
B、nationalistic reasons
C、scientific research
D、long-term profits
答案
C
解析
细节题。问及现在促使各国进行大规模空间探索的可能原因。答案在第三段it is clear that imperatives other than profits or nationalism will…和Could it be that science…is at last destined to take a leading role?所以选C。国际合作不是原因,不能说过去为了国家利益,现在为了国际合作,逻辑上不通。
转载请注明原文地址:https://tihaiku.com/zcyy/4003937.html
相关试题推荐
Althoughsaltisnowseenasharmfultohealth,ithasbeenusedforcenturiesa
Afterpeoplehavelearnedthatmagnetsattractthings,centuriespassed______the
Forcenturies,explorershaveriskedtheirlivesventuringintotheunknown
Forcenturies,explorershaveriskedtheirlivesventuringintotheunknown
ForcenturiesDutchengineershavebeenfightingawaragainstwater.Their
ForcenturiesDutchengineershavebeenfightingawaragainstwater.Their
Howmenfirstlearnttoinventwordsisunknown;inotherwords,theorigin
Howmenfirstlearnttoinventwordsisunknown;inotherwords,theorigin
Howmenfirstlearnttoinventwordsisunknown;inotherwords,theorigin
Howmenfirstlearnttoinventwordsisunknown;inotherwords,theorigin
随机试题
WhatCanWeLearnfromArt?Ⅰ.IntroductionA.Difference
Largecompaniesneedawaytoreachthesavingsofthepublicatlarge.The
Youknoweatingfruitandvegetablesisvirtuous.Butdidyouknowitcanal
在情绪行为的背景调节中起关键作用的是()A.杏仁核 B.海马 C.扣带回
根据《建筑工程建筑面积计算规范》(GB/T50353-2013)规定,建筑物大
测定BOD5时,要调节样品成稀释后样品的pH值范围是多少?使之适合微生物的活动。
张三是甲公司的控股股东,甲公司与乙公司签署飞机票代销合同,约定乙公司付给甲公司3
心理咨询师与求助者进行会谈时,选择会谈内容的原则包括()。 (A)积极(B)
下列疾病的主要累及病变区是 增生性龈炎A.前牙区为主,尤其是下前牙区最为显著,
根据《建筑工程施工质量验收统一标准》(GB00300),建筑工程质量验收的最小单
最新回复
(
0
)