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
2012-05-17
90
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 improvedtechniques 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/9jf7777K
0
大学英语四级
相关试题推荐
A、Onfootandbyboat.B、Bycarandonfoot.C、Byairandbycar.D、Byairandbybus.B几个选项乍一看比较混乱,但细听后应选B,因为Ms.Cook说:“Irented
Americansthisyearwillswallow15000tonsofaspirin(阿斯匹林),oneofthesafestand【C1】______drugs【C2】______bymap.Themostpop
A、Theycanorderforadelivery.B、Theyshouldcallofftheorder.C、Theycanorderinadvanceandpickitup.D、Theycancalli
BritainwillfailtomeettargetssetbytheEuropeanEconomicCommunity(EEC)forreducingairpollutionunlessthegovernment
Scientistssaytheyhave【B1】______evidencethatjoggingisgoodforpeople.ThislatestEuropeanresearch【B2】______headline-maki
CholesterolandHeartDiseaseDoyouknowyourcholesterollevel?Manypeopledon’t.Ahighlevelofcholesterolinthebloo
A、Becausethepolicemanstoppedhim.B、Becausethedriverchargedtoomuch.C、Fornogoodreason.D、Becausehehadbeenrubbed.
Itwillcomeasnosurprisethattheearthisgoingtobeamuchmorecrowdedplaceinthenextcentury.Fromaglobalpopulatio
A、Tobuysomenationaldebt.B、Toopenasavingsaccount.C、Toasktheinterestrate.D、Towithdrawsomemoney.B细节题。男士说“I’mon
Globalreservesoffreshwateradduptomorethan37millioncubickilometers,enoughtofilltheMediterranean10timesover.
随机试题
血栓按其组成成分可分
A.桂枝B.防风C.紫苏D.辛夷E.白芷性微温,善治风寒表证及小儿惊风的是()。
中国居民张某为一国企员工,该企业实行绩效工资制度,2019年张某收入情况如下:(1)每月应税工资8500元,餐补500元。(2)每月公务交通,通信补贴800元,所在省规定的标准为600元/月。(3)2月份取得过节费4000元。(4)10月份取得省
一套好的福利计划应具备的特征不包括()。
给定资料1.2015年3月,中共中央、国务院下发《关于构建和谐劳动关系的意见》(以下简称《意见》)指出,劳动关系是生产关系的重要组成部分,是最基本、最重要的社会关系之一。劳动关系是否和谐,事关广大职工和企业的切身利益,事关经济发展与社会和谐。《意见》
在中国四大古典文学名著中,唯一出自于清代的小说是()。
中华文化绵延5000年,有其独特的价值体系,已成为中华民族的基因。中华优秀传统文化是中华民族的突出优势,________着中华民族最深沉的精神追求,为中华民族生生不息、发展壮大提供了丰厚________,潜移默化地影响着中国人的思想方式和行为方式,至今仍具
下列叙述中正确的是
Whoisthistalkfor?
A、Bothofthemarebotheredwiththesmokeinthecinema.B、Themandoesn’tagreetothewoman’sopinion.C、Theroomissmokybe
最新回复
(
0
)