新东方在线网络课堂 六级 新东方在线 > 六级 > 英语六级听力 > 正文

2018年6月英语六级听力常考时文:The Origin of Refrigerators

2018-04-13 17:21:24 来源:网络六级资料下载

英语六级资料大全下载英语六级资料大全下载

六级关注: 六级阅读常见逻辑考点盘点 六级听力场景高频单词 六级重点语法知识讲解

备考指导: 六级真题高频词汇带音标 英语六级核心词汇汇总 六级仔细阅读练习题库

热点推荐: 英语六级单词表乱序版 英语六级口语单词复习汇总 六级词汇看图记忆汇总

六级必过: 六级口语自我介绍模板盘点 六级语法常考知识点讲解 六级口语讨论练习盘点

  2018年6月英语六级听力常考时文盘点

  英语六级听力常考时文:The Origin of Refrigerators

  1.When did ice come into household use? ...

  2.What performed the cooling in fact? ... of the ice.

  3.When was the balance of insulation and circulation needed for an efficient icebox achieved? Near ...

  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,it came into household 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 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,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 his butter,still fresh and hard in neat,one-pound bricks,was more welcomed.

  2018年6月英语六级听力常考时文盘点

英语六级必备资料下载

2018年6月英语六级词汇完整版带音标下载

英语六级必备工具:测测你的词汇量能过六级吗

测测你的词汇量能过六级吗

本文关键字: 英语六级听力 六级听力备考

分享到:

课程试听换一换

  • 六级通关全程春季3班【2018年6月】

    ¥199

  • 六级寒假词汇特训班

    ¥99

  • 六级寒假词汇特训试听课

    ¥9.9

  • 四六级寒假听力精讲班

    ¥129

  • 四六级寒假口语进阶班

    ¥119

  • 大学英语六级通关全程1班【2018年6月】

    ¥199

  • 大学英语六级VIP密训班【2018年6月】

    ¥1280

相关推荐

六级实用•工具

四六级交流•下载

六级课程排行榜本周本月

六级公开课更多>>

新东方在线老师唐迟解析2017年12月六级阅读真题 w 34分48秒
1 新东方在线老师唐迟解析2017年12月六级阅读真题
新东方在线老师李旭解析2017年12月六级听力真题 w 24分33秒
2 新东方在线老师李旭解析2017年12月六级听力真题
新东方在线老师吴欣蔚解析2017年12月六级写作真题 w 22分02秒
3 新东方在线老师吴欣蔚解析2017年12月六级写作真题
新东方在线老师罗宇解析2017年12月六级翻译真题 w 25分59秒
4 新东方在线老师罗宇解析2017年12月六级翻译真题
新东方在线吴欣蔚:2017年6月大学英语六级真题解析 w 22分28秒
5 新东方在线吴欣蔚:2017年6月大学英语六级真题解析

微博直播更多>>

推荐阅读