首页
登录
职称英语
By the mid-nineteenth century, the term "icebox" had entered the American lan
By the mid-nineteenth century, the term "icebox" had entered the American lan
游客
2023-09-10
19
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 (酒馆), 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 modern fridge, had bean 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 (未发展的). The commonsense notion that the best icebox was one that prevented the ice from melting was of coarse 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, and 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. [br] Without an ice box, farmers had to go to the market at night because ______.
选项
答案
they wanted to keep their produce cool
解析
由题干关键词farmers had to go to the market at night定位至原文最后一句话... was that farmers would no longer have to travel to market at night in order to keep their produce cool,大意是有了冰盒,他们不用再为了保证产品新鲜而半夜赶路去市场了。可见目的是to keep their produce cool。
转载请注明原文地址:https://tihaiku.com/zcyy/3002658.html
相关试题推荐
ManyAmericansmindlesslyopposehunting.Theydosoevenincaseswhereani
ManyAmericansmindlesslyopposehunting.Theydosoevenincaseswhereani
ManyAmericansmindlesslyopposehunting.Theydosoevenincaseswhereani
ManyAmericansmindlesslyopposehunting.Theydosoevenincaseswhereani
ManyAmericansmindlesslyopposehunting.Theydosoevenincaseswhereani
Fastfood,amainstayofAmericaneatingfordecades,mayhavereachedapla
Fastfood,amainstayofAmericaneatingfordecades,mayhavereachedapla
Fastfood,amainstayofAmericaneatingfordecades,mayhavereachedapla
Fastfood,amainstayofAmericaneatingfordecades,mayhavereachedapla
MostAmericansspendfarmoreoftheirleisuretimewiththemassmediatha
随机试题
[originaltext]DecadesbeforetheAmericanRevolutionof1776,JesseFish,a
[originaltext]InBritain,theQueenwillattendaceremonylatertodaytoma
不具备归档和保存价值的公文,经批准后可以()。A.撤销 B.废止 C.销毁
关于减小电流互感器暂态不平衡电流的措施,不正确的有()。A.尽可能使用型号相同
男性,70岁,间断咳嗽、咳痰40年,伴劳力性呼吸困难5年,近2天来咳喘加重,伴双
患者,女,29岁,关节肿痛5个月,以双手近端指间关节(PIP)和掌指关节(MCP
(2017年真题)利润表由三个主要部分构成,下列科目中,不属于这三部分的是(
优抚安置社会工作中的()是最深入的社会工作治疗的一种。A.军休干部医院社会工作
内涵价值是指立即执行期权合约时可获得的收益(不计交易费用)。()
某钢铁生产企业为了降低原材料价格,将经营范围延伸至采矿业,该企业实施的是()战略
最新回复
(
0
)