首页
登录
职称英语
By the mid-nineteenth century, the term "icebox" had entered the American l
By the mid-nineteenth century, the term "icebox" had entered the American l
游客
2024-06-02
50
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 moat, 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 fridge, 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 (未发展的). The commonsense 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, 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 travel 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/3616185.html
相关试题推荐
IfyouhadtosumuptheproblemsofAmericanhealthcarintwowords,they
IfyouhadtosumuptheproblemsofAmericanhealthcarintwowords,they
IfyouhadtosumuptheproblemsofAmericanhealthcarintwowords,they
IfyouhadtosumuptheproblemsofAmericanhealthcarintwowords,they
IfyouhadtosumuptheproblemsofAmericanhealthcarintwowords,they
[originaltext]TwonewAmericanstudiesareaddingtoourunderstandingofw
[originaltext]TwonewAmericanstudiesareaddingtoourunderstandingofw
ManyAmericanslookattheeyesofthepeopletheyaretalkingwith,___________
ACross-CulturalContext:Americans,Germans,andEnglish
ACross-CulturalContext:Americans,Germans,andEnglish
随机试题
如果你是那种看着别人的生活就羡慕,对自己的生活提不起精神的人,也许你需要把握生活,做些改变。很多人每天从早到晚做同样的事情,对现状感到非常满足并很快乐。
I’mafraidIwon’tbeavailable.I______afriendoffat3o’clockthisafternoo
[originaltext]M:We’realmostfinished.Couldyouhandmethewhitepepper?W:
WhatisPET?TheCambridgePreliminary(预备的)EnglishTest(PET)isthesecond
夜尿量多于白天尿量或夜尿量持续多于(),称为夜尿增多。
D
智能卡内有三类存储器,其中()主要用于存放交易过程中的一些中间结果和安全状态。
下列关于金融工具的表述,正确的有()。A.发行市场也称为一级市场,是债券、
可用于治疗青光眼的药物是A.毛果芸香碱 B.后马托品 C.去氧肾上腺素 D
背景资料: 某高速公路左右线隧道,洞口间距42m,左线长3316m,
最新回复
(
0
)