首页
登录
职称英语
As the horizons of science have expanded, two main groups of scientists have
As the horizons of science have expanded, two main groups of scientists have
游客
2023-07-11
45
管理
问题
As the horizons of science have expanded, two main groups of scientists have emerged. One is the pure scientist; the other, the applied scientist.
The pure or theoretical scientist does original research in order to understand the basic laws of nature that govern our world. The applied scientist adapts this knowledge to practical problems. Neither is more important than the other, however, for the two groups are very much related.
Sometimes the applied scientist finds the "problems" for the theoretical scientist to work on. Let’s take a particular problem of the aircraft industry: heat-resistant metals. Many of the metals and alloys(合金) that perform satisfactorily in a car cannot be used in a jet-propelled plane. New alloys must be used, because the jet engine operates at a much higher temperature than an automobile engine. The turbine wheel in a turbo-jet must withstand temperatures as high as 1,600 degrees Fahrenheit, so aircraft designers had to turn to the research metallurgist(冶金学者) for the development of metals and alloys that would do the job in jet-propelled planes.
Dividing scientists into two groups—pure and applied—is only one broad way of classifying them, however, when scientific knowledge was very limited, there was no need for men to specialize. Today, with the great body of scientific knowledge, scientists specialize in many different fields. Within each field, there is even further division. And, with finer and finer divisions, the various sciences have become more and more interrelated until no one branch is entirely independent of the others. Many new specialties—geophysics and biochemistry, for example—have resulted from combining the knowledge of two or more sciences.
选项
A、the horizon is enlarged by scientists
B、scientists can observe further space
C、scientist9 are making efforts to expand the outer space
D、science has developed more fields
答案
D
解析
推断题。horizon原意是“地平线,范围,前景”,结合上下文,本句话的意思应为“随着科学范围的扩展”,也就是说,科学已经拓展了更广泛的领域,故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/2826677.html
相关试题推荐
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
Thescientistscalculatethatacupofwholemilkprovides______morethan100
IftwoscientistsatLosAlamosNationalLaboratoryarecorrect,peoplewill
IftwoscientistsatLosAlamosNationalLaboratoryarecorrect,peoplewill
Whatistheattitudeoftheauthortowardsthetwoscientists?[br]Whichofthe
Whatistheattitudeoftheauthortowardsthetwoscientists?[br]Whatdoesth
随机试题
Inbusiness,manyplacesadoptacreditsystem,whichdatesbacktoancientt
Nigerisin[originaltext][25A][26A]Workonwhatwillbecometheworld’
Imagineamagazinethatclaimedtorankalloftheyear’smusicreleasesin【
参与者在正常融合和不受任何限制的气氛中会以会议进行讨论,打破常规,积极思考,发表
读某区域等高线地形图,回答14~15题。 依据因地制宜的原则,图
按此规律,第7行的数字和为______?。 A.155 B.165 C.1
我国建筑企业承揽工程或从事建筑活动的范围,取决于()。A、企业自身的资质等级
设某对旅客列车每日开行一次,列车全程运行距离1600公里,列车旅行速度50公里/
选择贸易术语时需要考虑的因素不包括()。A、考虑施工情况B、贸易术语下的责任、
项目管理的核心任务是()。 A.环境管理 B.信息管理 C.
最新回复
(
0
)