.
Commercial (商业广告) business is profitable (有利可图的),and most radio and TV stations depend on the ine. The prices for radio and TV mercials are different according to the popularity (声望) of the station and the time they give. Take WGY, a rock music station in Albary, New York, for instance, they ask $100 for a one-minute mercial from 6 a.m. to 10 a.m., the morning driving time. This is a time when people are driving on their way to work and they like to turn on their car-radios.
During other hours of the day the cost varies (变化) from $25 to $60 for one minute. TV mercials are much more expensive. During a good national or international football game or baseball game, the price for a one-minute TV mercial may reach as high as $100,000. On local TV station, prices of mercials are different according to the different programmes and the time of showing. At 7 p.m., when the TV stations are showing their most popular programmes, the price for a mercial for 30 seconds is $800.
49. This passage mainly tells that .
A. WGY, a rock music station earns much money by broadcasting mercials
B. the prices for mercials are different according to the different programmes
C. TV mercials are much more expensive than radio ones
D. mercial business can help most radio and TV stations earn a lot of money
50. The prices for radio and TV stations depend mainly on .
A. different radio and TV stations
B. different time the mercials are given
C. the most popular programmes
D. all of the above
51. How much does WGY, a rock music station ask for a half minute mercial at 9 a.m.?
A. $25 B. $50 C. $60 D. $100
52. When a mercial is shown at 7 a.m. on the local TV station for one minute, it will cost .
A. eight hundred dollars B. eighty hundred dollars
C. sixteen hundred dollars D. sixty hundred dollars49---52 DDBC
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