首页
登录
职称英语
In its early history, Chicago had floods frequently, especially in the spring
In its early history, Chicago had floods frequently, especially in the spring
游客
2025-03-01
9
管理
问题
In its early history, Chicago had floods frequently, especially in the spring, making the streets so muddy that people, horses, and carts got stuck. An old joke that was popular at the time went something like this: A man is stuck up to his waist in a muddy Chicago street. Asked if he needs help, he replies, "No,thanks. I’ ve got a good horse under me. "
The city planner decided to build an underground drainage(排水) system, but there simply wasn’ t enough difference between the height of the ground level and the water level. The only two options were to lower the Chicago River or raise the city.
An engineer named Ellis Chesbrough convinced the city that it had no choice but to build the pipes above ground and then cover them with dirt. This raised the level of the city’ s streets by as much as 12 feet.
This of course created a new problem: dirt practically buried the first floors of every building in Chicago. Building owners were faced with a choice- either change the first floors of their buildings into basements, and the second stories into main floors, or
hoist
the entire buildings to meet the new street level. Small wood-frame buildings could be lifted fairly easily. But what about large, heavy structures like the Tremont Hotel, which was a six-story brick building?
That’s where George Pullman came in. He had developed some house-moving skills successfully. To lift a big structure like the Tremont Hotel, Pullman would place thousands of jack-screws (螺旋千斤顶) beneath the building’ s foundation. One man was assigned to operate each section of roughly 10 jackscrews. At Pullman’ s signal each man turned his jackscrew the same amount at thesame time, thereby raising the building slowly and evenly. Astonishingly, the Tremont Hotel stay open during the entire operation, and many of its guests didn’ t even notice anything was happening.
Some people like to say that every problem has a solution. But in Chicago’ s early history, every engineering solution seemed to create a new problem. Now that Chicago’ s waste water was draining efficiently into the Chicago River, the city’ s next step was to clean the polluted river. [br] The city planners were convinced by Ellis Chesbrough to______.
选项
A、get rid of the street dirt
B、lower the Chicago River
C、fight against heavy floods
D、build the pipes above ground
答案
D
解析
细节题。当时的城市规划者们面临两个选择,要么升高城市的街道,要么降低河流的海拔。这位名为艾尔利斯-查斯波的工程师提出在城市地面架设管道,再用土来掩埋的办法来升高城市。故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3977953.html
相关试题推荐
Throughouthistory,humanshavesufferedfromaconditionthattheyhaveneve
Throughouthistory,humanshavesufferedfromaconditionthattheyhaveneve
Throughouthistory,humanshavesufferedfromaconditionthattheyhaveneve
Throughouthistory,humanshavesufferedfromaconditionthattheyhaveneve
Initsearlyhistory,Chicagohadfloodsfrequently,especiallyinthespring
Initsearlyhistory,Chicagohadfloodsfrequently,especiallyinthespring
Increasingly,overthepasttenyears,people—especiallyyoungpeople—havebe
Increasingly,overthepasttenyears,people—especiallyyoungpeople—havebe
Increasingly,overthepasttenyears,people—especiallyyoungpeople—havebe
SpeakerA:IhavenoideawheretogointheSpringbreak.Gotanysuggestions?
随机试题
Whatisthemajortopicofthisspeech?[br][originaltext]NorwayandJapan
Theword"freedom"formanyblackAmericansisinextricablylinkedwiththe
Whatwillbemosteffectiveaboutpersonalinterviewing?[originaltext]Perso
[originaltext]M:Hi,Queenie,howareyouenjoyingyourselfatuniversity?W:H
中国共产党“八七”会议决议:“共产党现时最主要的任务是有系统地有计划地尽可能在广
男性,62岁,反复发作性咳喘20余年。近年来症状持续,动则气急。1周来因上呼吸道
A.独活B.川乌C.木瓜D.狗脊E.海风藤源于伞形科,能祛风湿、发表的药物是
进行区域消防安全评估时应对区域消防救援力量进行分析评估。对区域消防救援力量评估的
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
维生素A缺乏最早临床表现是( )。A.暗适应时间延长 B.夜盲症 C.毕脱
最新回复
(
0
)