CATV is a short way of saying "community antenna(天线)television". But "cable

游客2023-10-10 78

问题 CATV is a short way of saying "community antenna(天线)television". But "cable television" is the term most people use. Cable television allows【D1】______to receive TV programs that they cannot pick up with their【D2】______antennas. Television signals do not【D3】______the curve of the earth. They travel in straight lines in all directions. Signals from a TV station【D4】______toward the horizon and then go into space. If you live only a few miles【D5】______a station, you may not get any picture at all.
CATV began in 1948. People in places far from TV stations shared the【D6】______of putting up high antennas. A community antenna was usually placed on a hill, a mountain, or on a high tower. The antenna picked up TV signals and fed them into a small local station. From the station, thick wires called cables ran out to nearby homes. Each person using the cable paid a monthly【D7】______
CATV worked well, and soon new uses were found【D8】______it. Local stations could feed programs into【D9】______channels that were not in use. People along the cable could have local news, weather reports, and farm and school news at no【D10】______charge.
Today, cable television has moved into cities. It brings in extra programs that city viewers with regular antennas cannot see. It is also used in many classrooms throughout the country.
A)follow F)special K)money
B)into G)empty L)charge
C)move H)for M)cost
D)regular I)reach N)viewers
E)from J)watchers O)extra [br] 【D2】

选项

答案 D

解析

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CATV is a short way of saying "community antenna(天线)television". But "cable

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