【正文】 the horizon(水平線 ) and then go into space. If you live only a few miles from a TV station, you may get a good picture on your set. But if you live more than 50 miles from a station, you may not get any pictured at all. CATV began in 1948. People in places far from TV stations had to pay for putting up high antennas. A munity 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(當?shù)氐?) station. From the station, thick wires called cable ran out to nearby homes. Each person using the cable paid a monthly charge(費用 ). CATV worked well, and soon new uses were found for it. Local stations could feed programs into empty channels that were not in use. People along the cable could have local news, weather report, and farm and school news at no extra charge. Toddy, cable television has moved into cities. It brings in extra programs that city viewers with ordinary antenna can not see. It is also used in many classrooms throughout the country. 46. From the first paragraph we know that _____. A. most people use cable television B. ―munity antenna‖ is used for cable television C. a munity antenna is used for cable television D an ordinary antenna can not pick up TV programs 47. Of the following, which is not the way TV signals travel? A. In a curve. B. In a straight line. C. In all directions. D. Towards the horizon. 48 Cable TV is being more and more popular because _____. A. it is free of charge B. it provides all TV users good pictures C. it only needs a bit of cable D. it can provide more programs 49. On the whole, this passage is about ______. A. how to put up high antennas B. a way of picking up better TV programs C. how to use the empty channels on your TV set D. the way that TV signals are sent 50. From the passage we can infer (推測 ) that ______. A. TV has begun to be used for educational purpose(目的 ) B. viewers can receive more TV programs with their ordinary antennas C. cable TV can not be used in small towns D. antennas for cable TV are usually put up in the center of a munity C The following are three ads. Driver Wanted Clean driving license Goodlooking Age over 25 Apply(申請 ) to: Capes Taxi, Shenzhen Tel: 07556561382 Air Hostess（空姐） Wanted Age between 20 and 33 Height from to Two foreign languages College graduate Apply to: China airlines, Beijing Tel: 01088488970 Teacher Needed For private language school Teaching experience necessary Apply to: Instant Languages Ltd, Dalian Tel: 04114313861 51. If you want to work in the south, you can apply for a job as ______. A. a driver B. an air hostess C. a teacher D. all of the above 52. You may call _______ when you wish to be a teacher. A. 07556561382 C. 01088488970 D. A and B 53. Mary, aged 26, knows English and Japanese. Which job can be given to her? A. Driving for Capes Taxi. B. Working for China Airlines. C. Teaching at Instant Languages Ltd. D. None of the above. 54. What prevents Jack, an experienced taxi driver, working for Capes Taxi? A. Liking beer and wine. B. Breaking traffic rules. C. being unable to speak a foreign language. D. not having college education. 55. Which of the following is not mentioned in