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
52
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.
The word "hampered" in Line 1 Para. 2 is closest in meaning to______.
选项
A、recognized
B、determined
C、solved
D、hindered
答案
D
解析
推理判断题。第二段第一句起到了承上启下的作用,句中的"however"表示转折的意思,因此可以得知“hamper”的意思是阻碍,妨碍之类。D选项hinder意为“阻碍”,是正确答案。A选项的意思是“认识”,B选项的意思是“决定”,C选项的意思是解决,均不合适。答案是D。
转载请注明原文地址:https://kaotiyun.com/show/njf7777K
0
大学英语四级
相关试题推荐
ThecontinentalUnitedStateswillfacemoreextremetemperaturesduringthenextcenturyandworserainfallalongitsGulfCoas
Americansthisyearwillswallow15000tonsofaspirin(阿斯匹林),oneofthesafestand【C1】______drugs【C2】______bymap.Themostpop
TheBritisharethemost【B1】______newspaperreadersintheworld.Therearemanymorningpapers,bothnationaland【B2】______.T
Haveyoueverseenamovieinwhichabuildingwasburneddownorabridgewas【B1】______?Haveyouseenafilminwhichatrain【
A、Thewoman’ssourceofinformationisreliable.B、Hedidn’tenjoytakinghistorywithDr.Parker.C、HethoughtDr.Parker’stes
LackingacureforAIDS,societymustoffereducation,notonlybypublicpronouncementbutinclassrooms.ThosewithAIDSorth
Jan.6issue--Theweatheroutsidewasicy,butinside,250journalistsweregatheredinaManhattanofficecomplextoseethela
Ifpeoplebecomeextremelyrich,mostofthemdon’tbotherto____________(学习知识)theyneedtosucceedanymore.
A、Childrenunder16B、Menbetween20and33yearsoldC、WomenD、OldpeoplewithseriousdiseasesC细节题,文中明确出现原句“Thetargetgroup
A、Identifythesuspectfrompictures.B、Goupstairstosignsomedocument.C、Haveherphototakenfortheirfiles.D、Verifythe
随机试题
肺血栓栓塞症溶栓治疗的药物不包括
与斜坡关系密切的脑池不包括下列哪项
阿托品对缓解哪一项症状无效诊断本病最特效的指标是
EAN码中由厂商自行制定的码是从右()数字。
243,162,108,72,48,()
下列不属于我国宪法基本原则的是()。
一、注意事项1.申论考试是对应考者阅读理解能力、综合分析能力、贯彻执行能力、提出和解决问题能力以及文字表达能力的测试。2.仔细阅读给定材料,按照后面提出的“作答要求”依次作答,答案书写在指定的位置。二、给定资料材料1刚
我国刑法在溯及力问题上采取的是从旧兼从轻原则。()
Whatisthispassage?Itisa__________.WhatdidJacobWarrenstudyintheuniversity?JacobWarrenstudied__________.
SarrElysetookasipfromaplasticcup.Likeapractisedwinetaster,sheswilledthedarkliquidaroundinhermouththenswa
最新回复
(
0
)