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
Iron production was revolutionized in the early eighteenth century when coke was first used instead of charcoal(木炭)for refining
Iron production was revolutionized in the early eighteenth century when coke was first used instead of charcoal(木炭)for refining
admin
2010-10-14
62
问题
Iron production was revolutionized in the early eighteenth century when coke was first used instead of charcoal(木炭)for refining iron ore. Previously the poor quality of the iron had restricted its use in architecture to items such as chains and tie bars for supporting arches, vaults(拱顶), and walls. With the improvement in refining ore, it was now possible to make castiron beams and columns. During the nineteenth century further advances were made, notably Bessemer’s process for converting iron into steel, which made tile material more commercially feasible.
Iron was rapidly adopted for the construction of bridges, because its strength was far greater than that of stone or timber, but its use in the architecture of buildings developed more slowly. By 1800 a complete internal iron skeleton for buildings had been developed in industrial architecture replacing traditional timber beams, but it generally remained concealed. Apart from its low cost, the appeal of iron as a building material lay in its strength, its resistance to fire, and its potential to span vast areas. As a result, iron became increasingly popular as a structural material for more traditional styles of architecture during the nineteenth century, but it was invariably concealed.
Significantly, the use of exposed iron occurred mainly in the new building types produced by the Industrial Revolution: in factories, warehouses, commercial offices, exhibition halls, and railroad stations, where its practical advantages far outweighed its lack of status. Designers of the railroad stations of the new age explored the potential of iron, covering huge areas with spans that surpassed the great vaults of medieval churches and cathedrals. Paxton’s Crystal Palace, designed to house the Great Exhibition of 1851, covered an area of 1848 feet by 408 feet in assembled units of glass set in iron frames. The Paris Exhibition of 1889 included both the widest span and the greatest height achieved so far with the Halle des Machines, spanning 362 feet, and the Eiffel Tower 1,000 feet high. However, these achievements were mocked by the artists of Paris as expensive and ugly foolishness. Iron, despite its structural advantages, had little aesthetic(审美的)status. The use of an exposed iron structure in the more traditional styles of architecture was slower to develop.
Iron replaced stone and timber in the building of bridges because iron was considered ______.
选项
A、more beautiful
B、new and modern
C、much stronger
D、easier to transport
答案
C
解析
题中比较了iron、stone和timber,根据这三个关键词可以找到原文的第二段...its(即 iron’s)strength was far greater than that of stone or timber一句的意思即it is much stronger。
转载请注明原文地址:https://kaotiyun.com/show/dQy7777K
0
大学英语四级
相关试题推荐
Muchattentionispresentlybeinggiventowhatistermed"functionalilliteracy".Thisshouldnotbeconfusedwiththeproblem
ToHelptheKids,ParentsGoBacktoSchoolForafewyearsnow,everyparentofanewbornbabyintheSouthFloridadistric
IncollegesalmosthalfamillionstudentshavetotakethecourseofintroductoryCalculus(微积分)inanyacademicyear,andthenu
A、Hewillleavetherestaurant.B、Hewilldrawthecurtaindownandputonhiscoat.C、Hewillaskthewaitertoarrangeanother
Throughouthistorymanhashadtoacceptthefactthatalllivingthingsmustdie,hutpeoplenowlivelongerthantheyusedto.
Inacompetitiveeconomy,theconsumerusuallyhasthechoiceofseveraldifferentbrandsofthesameproduct.Yetunderneathth
A、Newpoliciesfordoctorsandnurses.B、Controlofthepopulationinpoorcountries.C、Internationalsupportandforeignhelp.
A、Twocenturies.B、300yearsago.C、In1691.D、Inthe16thcentury.B本题考查考生对事件发生时间的掌握。文中两处提供了本题的答案,在文章的开始和结尾,我们可以听到以上所列关键词,故B正确。
Thedeclineinmoralstandards--whichhaslongconcernedsocialanalysts--hasatlastcapturedtheattentionofaverageAmerican
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
随机试题
乙状结肠扭转属于
教育的隐性功能都是消极的。
以下法律属于实体法的是
下列用地中,土地出让年限为50年的是()
A.沙丁胺醇B.哌仑西平C.氨茶碱D.二丙酸倍氯米松E.色甘酸钠伴有心脏功能不全的哮喘急性发作病人,宜选用的药物是
男性,45岁,肝硬化大量腹水,呼吸困难,用利尿药后仍尿少,如需放腹水第一次单侧放腹水,放多少合适
( )不仅对解决施工成本管理过程中的技术问题是不可缺少的,而且对纠正施工成本管理目标偏差也有相当重要的作用。
在市区施工产生环境噪声污染的下列情形中,可以在夜间进行施工作业而不需要有关主管部门证明的有()。
采用外保温系统的建筑外墙,其保温材料应符合哪些要求?
Thethreatofdiseasessuchasinfluenzaortuberculosisre-emerginginvirulentformhasbeenacommonthemeinrecentyears.T
最新回复
(
0
)