2023年6月英语四级优秀作文范文-冰箱的起源

2023-05-04 08:24:00来源：网络

　　英语四级写作备考的过程中，要注意词汇、短语的积累，考前可以背诵一些优秀范文。下面是新东方在线英语四级频道给大家分享的2023年6月英语四级优秀作文范文-冰箱的起源，大家可以作为学习的参考。

　　2023年6月英语四级优秀作文范文-冰箱的起源

　　The Origin of the Refrigerators

　　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 modern 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 commonsense notion that the best icebox was onethat 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 centurydid 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. When he used an icebox of his own design to transport his butter to market,his butter, still fresh and hard in neat,was worth one-pound a brick.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.

　　以上是新东方在线英语四级频道小编为大家带来的“2023年6月英语四级优秀作文范文-冰箱的起源”，希望考生们都能备考顺利，取得出色的成绩！

新东方英语四级好课免费听↓↓↓

课程名称	课程亮点	试听
【小班课】英语四六级零基础无忧计划	1V1答疑	免费试听
【零基础】四六级全科专项突破	单项全面进阶	免费试听
【阅读】四六级阅读高分技巧	双师精讲阅读	免费试听
【写作】四六级写作万能模板	双师精讲写作	免费试听
【听力】四六级听力高分技巧	双师精讲听力	免费试听
【寒假班】英语四六级全程班	考前冲分快准狠	免费试听
了解更多四六级课程