1. (2020九上·柯桥期中) 阅读理解
One hundred years ago, the world was a very different place. Many important things were invented that year. Some of them totally changed people's lives.
●In 1920, the world's first three-color traffic light was put to use. William Potts, a U.S. police officer, invented the modern traffic light system using red, green and amber (黄褐色的) lights. It was first set up in Detroit, U.S.A.
●In the past, there was no easy way to deal with injuries(损伤).That all changed in 1920. Earle Dickson, a U.S. cotton buyer, invented the Band-Aid. One day, Dickson's wife cut her fingers while cooking. Dickson wanted to help treat the injury. He tied tape and gauze(纱布),and a Band-Aid was born. The product hit the local market the following year.
●KDKA was America's first commercial(商业的) radio station. It made its first broadcast on November 2, 1920.That day was election day (大选日). For the first time, people could know the results before they read the next day's newspaper. Westinghouse Radio was the company behind KDKA. The company set up KDKA in order to sell more radios. The plan worked. In just four years, 600 new radio stations had appeared across the United States. As a result, Westinghouse Radio was able to sell a lot of radios.

（1） From the text, we know the Band-Aid was _______________________.

A . invented by a police officer B . made to cook dishes better C . used to help treat injuries D . found by Dickson's wife
（2） It can be learnt that _______________________.

A . William bought cotton from Dickson B . KDKA was the name of a radio station C . 600 radios were soon sold out in 1920 D . the inventions appeared in different years
（3） The text is probably from the section(栏目) of _______________________ in a newspaper.

A . Traffic B . Medicine C . Science D . Business

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One hundred years ago, the world was a very different place. Many important things were invented that year. Some of them totally changed people's lives.
	●In 1920, the world's first three-color traffic light was put to use. William Potts, a U.S. police officer, invented the modern traffic light system using red, green and amber (黄褐色的) lights. It was first set up in Detroit, U.S.A.
	●In the past, there was no easy way to deal with injuries(损伤).That all changed in 1920. Earle Dickson, a U.S. cotton buyer, invented the Band-Aid. One day, Dickson's wife cut her fingers while cooking. Dickson wanted to help treat the injury. He tied tape and gauze(纱布),and a Band-Aid was born. The product hit the local market the following year.
	●KDKA was America's first commercial(商业的) radio station. It made its first broadcast on November 2, 1920.That day was election day (大选日). For the first time, people could know the results before they read the next day's newspaper. Westinghouse Radio was the company behind KDKA. The company set up KDKA in order to sell more radios. The plan worked. In just four years, 600 new radio stations had appeared across the United States. As a result, Westinghouse Radio was able to sell a lot of radios.