Câu hỏi:
11/04/2020 522Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.
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 (1860-1865), as ice was used to refrigerate freight cars, it also came into household use. Even before 1880, half 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 common-sense 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 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 nice 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. 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.
What does the passage mainly discuss?
Đáp án chính xác
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Trả lời:
Giải bởi Vietjack
Đáp án B
Bài đọc chủ yếu thảo luận về cái gì?
A.Ảnh hưởng của đá lạnh đến chế độ ăn uống.
B. Sự phát triển của tủ lạnh.
C.Vận chuyển thức ăn đến chợ
D. Các nguồn đá lạnh ở thế kỷ 19
Nhà sách VIETJACK:
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions
Although they hold similar political views, their religious beliefs present a striking contrast
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Câu 2:
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions
“You’d better apologize for being late,” said my mother
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Câu 3:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Like everyone else, Sue has her _____________ of course but on the whole , she’s quite satisfied with life
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Câu 4:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
I can’t walk in these high-heeled boots. I keep _____________.
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Câu 5:
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
In my judgement, I think Hem is the best physicist among the scientists of the SEA region
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Câu 6:
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
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Câu 7:
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
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