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
Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slow
Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slow
admin
2010-07-24
46
问题
Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slowly and laboriously. But chemical knowledge is as old as history, being almost entirely concerned with the practical arts of living. Cooking is essentially a chemical process; so is the melting of metals and the administration of drugs and potions. This basic chemical knowledge, which was applied in most cases as a rule of thumb, was nevertheless dependent on previous experiment. It also served to stimulate a fundamental curiosity about the processes themselves. New information was always being gained as artisans improved techniques to gain better results.
The development of a scientific approach to chemistry was, however, hampered by several factors. The most serious problem was the vast range of material available and the consequent difficulty of organizing it into some system. In addition, there were social and intellectual difficulties, chemistry is nothing if not practical; those who practice it ’must use their hands, they must have a certain practical flair. Yet in many ancient civilizations, practical tasks were primarily the province of a slave population. The thinker or philosopher stood apart from this mundane world, where the practical arts appeared to lack any intellectual content or interest.
The final problem for early chemical science was the element of secrecy. Experts in specific trades had developed their own techniques and guarded their knowledge to prevent others from stealing their livelihood. Another factor that contributed to secrecy was the esoteric nature of the knowledge of alchemists, who were trying to transform base metals into gold or were concerned with the hunt for the elixir that would bestow the blessing of eternal life. In one sense, the second of these was the more serious impediment because the records of the chemical processes that early alchemists had discovered were often written down in symbolic language intelligible to very few or in symbols that were purposely obscure.
According to the passage, how did knowledge about chemical processes increase before the seventeenth century?
选项
A、Philosophers devised theories about chemical properties.
B、A special symbolic language was developed.
C、Experience led workers to revise their techniques.
D、Experts shared their discoveries with the public.
答案
C
解析
细节题。文章第一段最后一句New information was always being gained as artisans improved techniques to gain better results. (新的信息总是被获得,就像工匠改进技术以获得更好的结果一样。)因此选择C,改进技术所获得的经验。其他选项在文中有所提及,但并不是此问题答案。答案是C。
转载请注明原文地址:https://kaotiyun.com/show/fiN7777K
0
大学英语四级
相关试题推荐
Oceanographyhasbeendefinedas"theapplicationofallsciencestothestudyofthesea".Beforethe19thcentury,scientists
Oceanographyhasbeendefinedas"theapplicationofallsciencestothestudyofthesea".Beforethe19thcentury,scientists
Oceanographyhasbeendefinedas"theapplicationofallsciencestothestudyofthesea".Beforethe19thcentury,scientists
TheEuropeanUnionhadapprovedanumberofgeneticallymodifiedcropsuntillate1998.Butgrowingpublicconcernoveritssupp
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand1
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand1
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand1
Increasingnumbersoffarmersaregrowinggeneticallyengineeredcrops.Anewreportalsosaysthatthetotallandareawheresu
Increasingnumbersoffarmersaregrowinggeneticallyengineeredcrops.Anewreportalsosaysthatthetotallandareawheresu
随机试题
用矢状符号和不同宽度、颜色的条带,表示现象移动的方向、路径和数量、质量特征的方法是()。
气柜安装完毕后,其下水封焊缝应进行的检验方法是()。
背景资料:某高速公路M合同段(K17+300~K27+300),主要为路基土石方工程,本地区岩层构成为泥岩、砂岩互层,抗压强度20MPa左右,地表土覆盖层较薄。在招标文件中,工程量清单列有挖方2400000m3(土石比例为6:4),填方24
下列各项中,应计入销售费用的有()。
新修订的《中华人民共和国公务员法》已于今年6月1日起施行,下列哪项不属于该法明确规定的不得录用为公务员的情况()。
意志
一、注意事项1.申论考试与传统的作文考试不同。是分析驾驭材料的能力与表达能力并重的考试。2.作答参考时限:阅读资料40分钟。作答110分钟。3.仔细阅读给定的资料.按照后面提出的“作答要求”依次作答在答题纸指定位置。4.答题时请认准题号.避免答错位
阅读下面短文。回答下列五道题。桥的运动桥是种固定建筑物,一经造成。便屹立大地,可以千载不移,把它当做地面标志,应当是再准确不过的。《史记.苏秦列传》里有段故事:“尾生(人名)
军队强不强,关键看打仗;战场打不赢,一切等于零。把战斗力作为唯一的根本的标准,是有效履行我军根本职能的内在要求,也是提高军队建设质量效益的客观需要,无论过去、现在和将来,战斗力标准始终是军事领域衡量利弊得失的重要标准。现代战争的核心战斗力是
数据安全的目的是实现数据的(5)。
最新回复
(
0
)