Inventors and Their Inventions New inventions are appearing every day to make our lives easier, longer, warmer, speedier and

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问题                                                               Inventors and Their Inventions
   New inventions are appearing every day to make our lives easier, longer, warmer, speedier and so on. But only a few inventors design a new machine or product that becomes so well known that the invention, named after its creator, becomes a household word. Here are four famous inventors and the inventions that are named after them:
   1. John Bowler, a London hatter who designed the hard round hat known as the bowler in about 1850 . It has become the symbol of a respectable British man.
   2. Louis Braille (1809-1952), born in France. He was blinded as a child. In 1942 he developed his own alphabet patterns known as Braille by which the blind could read by touch.
   3. Rudolf Diesel (1858:1913), a German engineer who invented the diesel engine in 1897 and so began a transport revolution in cars, Lorries and trains.
   4. Charles Rolls, a car salesman who with the engineer Henry Royce created the world famous Rolls-Royce car.
                                               Inventors and Their Inventions
   Our lives are made easier, longer, warmer and speedier by  (46)  . A few inventions were named after their inventors. Here are some:
Inventors          Inventions
John Bowler        the  (47)  hat bowler
Louis Braille      his own  (48)  .
Rudolf Diesel      an engine that began a transport revolution—  (49)  .
Charles Rolls      the world-famous car—  (50)  car


选项

答案hard round

解析 从对John Bowler的介绍中可知:他的主要贡献是设计了一种叫做 bowler的圆顶硬礼帽,这一部分是对发明的描述,所缺少的是对hat的修饰语,故选用hard round才符合原义。
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