首页
登录
职称英语
[originaltext] By the mid-nineteenth century, the term "icebox" had entered
[originaltext] By the mid-nineteenth century, the term "icebox" had entered
游客
2023-12-29
7
管理
问题
By the mid-nineteenth century, the term "icebox" had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew with the growth of cities. Ice was used in hotels, taverns, and hospitals, and by some forward-looking city dealers in fresh meat, fresh fish, and butter. After the Civil War (1861- 1865), as ice was used to refrigerate freight cars, it also came into household use. Even before 1880, half of the ice sold in New York, Philadelphia, and Baltimore, and one-third of that sold in Boston and Chicago, went to families for their own use. This had become possible because a new household convenience, the icebox -- a precursor of the modem refrigerator, had been invented.
Making an efficient icebox was not as easy as we might now suppose. In the early nineteenth century, the knowledge of the physics of heat, which was essential to a science of refrigeration, was rudimentary. The common sense notion that the best icebox was one that prevented the ice from melting was of course mistaken, for it was the melting of the ice that performed the cooling. Nevertheless, early efforts to economize ice included wrapping up the ice in blankets, which kept the ice from doing its job. Not until near the end of the nineteenth century did inventors achieve the delicate balance of insulation and circulation needed for an efficient icebox.
But as early as 1803, an ingenious Maryland farmer, Thomas Moore, had been on the right track. He owned a farm about twenty miles outside the city of Washington, for which the village of Georgetown was the market center. When he used an icebox of his own design to transport his butter to market, he found that customers would pass up the rapidly melting stuff in the tubs of his competitors to pay a premium price for his butter, still fresh and hard in neat, one-pound bricks. One advantage of his icebox, Moore explained, was that farmers would no longer have to travel to market at night in order to keep their produce cool.
选项
A、The freezing of the water.
B、The melting of the ice.
C、Wrapping up the ice in blankets.
D、Keeping air from coming into the ice-box.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3316796.html
相关试题推荐
ANewNationAtthebeginningofthe20thcentury,Australiawasanopen
Itismorethanaquarterofacenturysincetheleadersoftheworld,gather
MostoftheoldercivilizationswhichflourishedduringthefifthcenturyB.C.a
Intheeighteenthcentury,thetownofBennington,Vermont,wasfamousfor_____
Heisthemostintrepidexplorerinthepresentcentury.A、successfulB、fearless
Themoststrikingtechnologicalsuccessinthe20thcenturyisprobablythecomp
MostoftheoldercivilizationswhichflourishedduringthefifthcenturyB.C.a
Inthenineteenthcentury,poorEuropeansseekingtomaketheirfortunesturned
Initiallyactingasasportsannouncerinthe1930’s,RonaldReaganenterednati
Consideringtheirvastnumbersintheseventeenthcentury,notmuchsheeparerai
随机试题
Theword"brick"didnotappearintheEnglishlanguagebeforethe15thcentury.
Thenotionofsuperordinateisrelatedto______.A、synonymyB、homonymyC、polyse
SomepeoplewouldsaythattheirEnglishman’shomeisnolongertheircastle
CanthePCIndustryRe
对待患者知情同意权的做法中,错误的是A.做到有效同意 B.无家属承诺,即使患者
下列不属于生态规划理由的是()。A.知识的碎裂化或者分割 B.环境问题在
《城市排水工程规划规范》规定,城市排水系统的安全性应注意:污水处理厂和排水泵站供
制定城市规划应遵循的原则是()A.统筹兼顾,综合部署 B.分期建设,留有余
(2018年真题)按照《中华人民共和国担保法》的有关规定,担保方式包括定金、留置
下列关于水灭火系统中设置消防水池的规定,表述正确的是()。A.当生产、生活用水
最新回复
(
0
)