2. 职称英语
  3. Before the mid nineteenth century, people in the United States ate most food

Before the mid nineteenth century, people in the United States ate most food

游客2024-05-11  50
问题     Before the mid nineteenth century, people in the United States ate most foods only in season. Drying, smoking, and salting could preserve meat for a short time, but the availability of fresh meat, like that of fresh milk, was very limited, there was no way to prevent spoilage. But in 1810 a French inventor named Nicolas Appert developed the cooking and sealing process of canning. And in the i850s an American named Gall Borden developed a means of condensing and preserving milk. Canned goods and condensed milk became more common during the 1860s, but supplies remained low because cans had to be made by hand.  By ]880, however, inventors had fashioned stamping and soldering machines that mass produced cans from tinplate. Suddenly all kinds of food could be preserved and bought at all times of the year.
    Other trends,  and inventions had also helped make it possible for Americans to vary their daily diets. Growing urban populations created demand that encouraged fruit and vegetable farmers to raise more produce.  Railroad refrigerator ears enabled growers and meat packers to ship perishables great distances and to preserve them for longer periods. Thus, by the 1890s, northern city dwellers could enjoy southern and western strawberries, grapes, and tomatoes, previously available for a month at most, for up to six months of the year. In addition, increased use of iceboxes enabled families to store perishables. An easy means of producing ice commercially had been invented in the 1870s, and by 1900 the nation had more than two; thousand commercial ice plants, most of which made home deliveries. The icebox became a fixture in most homes and remained so until the mechanized refrigerator replaced it in the 1920s and 1930s.
    Almost everyone now had a more diversified diet. Some people continued to eat mainly foods that were heavy in starches or carbohydrates, and not everyone could afford meat.  Nevertheless,  many families could take advantage of previously unavailable fruits, vegetables, and dairy products to achieve more varied fare. [br] During the 1860s canned food products were ______.
选项 A、unavailable in rural areas.
B、shipped in refrigerator cars.
C、available in limited quantities.
D、a staple part of the American diet.
答案 C
解析 细节定位题。 线索词1860，canned food products在文中第1段第5句，food products与原文中goods同义，supplies remained low与C项中的内容一致。文章原句意思是罐装食品和炼乳等在1860年已经变得很普遍，很受欢迎，可是由于那些罐子都是手工制作，因此，供应仍然不足。故C正确。
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