◎ 题干
根据短文内容,判断正(T)误(F)。
     CATV is short for "community antenna (公用天线) television". But "cable television" is the name most
  people like to use. Cable television can help people receive TV programs that they can not get with their
  ordinary (常规) antenna.
     Television signals (信号) travel in straight lines in all directions. Signals from a TV station move towards
  the horizon (地平线) and then go into space. If people live only a few miles from a TV station, they may
  get a good picture on their televisions. But if they live more than 50 miles from a station, they may not get
  good pictures.
     CATV began in 1948. People in places far from TV stations had to pay for it. A community antenna
 was usually placed on a hill, a mountain or on a high tower. The antenna can receive TV signals and send
  them into a small local station (当地电视台).
     Today, cable television is used in more and more areas. It is even used in many classrooms all over the
  country.
(     ) 1. Most people like using the name of "cable television".  
(     ) 2. TV signals travel in curved lines.
(     ) 3. People who live more than 50 miles from a station mustn't get any pictures at all.
(     ) 4. The antenna sends TV signals to local station.
(     ) 5. The cable television can also be used in classrooms today.
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◎ 知识点
    根据魔方格专家分析,试题“根据短文内容,判断正(T)误(F)。 CATV is short for "community antenna (公用天线) television". But "cable television" is the name most people like to use. Cabl…”主要考查了你对  【科教类阅读】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。