The word horsepower was first used two hundred years ago. James Watt had made

游客2023-10-04  22

问题    The word horsepower was first used two hundred years ago. James Watt had made the world’s first widely used  (11)  . He had no way of telling people exactly how powerful it was, for  (12)  there were no units for measuring power.
   Watt decided to find out how much work one strong horse could do in  (13)  . He called that unit one horsepower. With this unit he could measure the work his steam engine could do.
   He discovered that a horse lift a  (14)  weight 10 feet in one minute. Because his engine did  (15)  as much as the horse, Watt called it a ten-horsepower engine.
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The word horsepower was first use two hundred years ago. James Watt had made the world’s first widely used steam engine. He had no way of telling people exactly how powerful it was, for at that time there were no units for measuring power.
   Watt decided to find out how much work one strong horse could do in one minute. He called that unit one horsepower. With this unit he could measure the work his steam engine could do.
   He discovered that a horse lift a 3300-pound weight 10 feet in one minute. Because his engine did ten times as much as the horse, Watt called it a ten-horsepower engine.

选项

答案 ten times

解析 该句是一个带有比较句型的句子。关键词是as much as...“与……一样多”。在其前面常常可以加上数量词或倍数词。做题时,应该注意听清楚发音,并根据发音判断答案。该题的答案是比较简单的数字,听清楚数字并迅速反应,是可以找到答案的。
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