题目列表(包括答案和解析)
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CATV is a short way of saying“community antenna(共用天线)television”. But “cable television”(有线电视)is the term most people use. Cable television allows viewers to receive TV programs that they cannot pick up with their regular antennas.
Television signals(信号)do not follow the curve(曲线)of the earth. They travel in straight lines in all directions. Signals from a TV station move toward the horizon(水平线)and then go into space. If you live 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 pictures at all.
CATV began in 1948. People in places far from TV stations shared the cost 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 cable ran out to nearby homes. Each person using the cable paid a monthly charge.
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.
Today, cable television has moved onto cities. It brings in extra programs that city viewers with regular antennas cannot see. It is also used in many classrooms throughout the country.
(1)From the first paragraph we know that ________.
[ ]
A.most people use cable television
B.“community antenna”is another name for “regular antenna”
C.a community antenna is used for cable television
D.regular antenna cannot pick up TV programs
(2)Which of the following is NOT the way TV signals travel?
[ ]
A.In a curve.
B.In a straight line.
C.In all directions.
D.Towards the horizon.
(3)Cable TV is becoming more and more popular because ________.
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A.it is free of charge
B.it can provide more programs
C.it provides all TV users good pictures
D.TV sets with regular antenna can also have a good reception through CATV
(4)On the whole, this passage is about ________.
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A.how to put up high antennas
B.a way of picking up better TV pro-grams
C.how to use the empty channels
D.the way that TV signals are sent
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My friend Jason is fourteen now. He has two brothers and three sisters. His father works in a 1 factory and his mother is a nurse. They work hard but are paid 2 and they're often worried about the 3 and clothes.
Jason always wears old clothes and 4 a broken bag. He has to help his mother to do some washing and cleaning and has no 5 to do his lessons at home. So he usually 6 the teachers carefully in class and asks them some questions. It's 7 for him to finish his homework at school and he tries to do more 8 after school. But it doesn't interfere with his studies and he's always the top of our 9 .
Barry, whose father is a dentist, always wears expensive and 10 clothes. He likes to show off his riches to us though he often 11 in the examinations. He is jealous of Jason's 12 and tries his best to make fun of him. My friend knows him well and doesn't 13 it. Winter has come and we all wear new and 14 coat. But Jason's coat is old and his shoes are 15 . “How miserly (吝啬) your father is!” Barry 16 Jason in the classroom one day. “He's a shoemaker 17 you wear such shoes!”
“But I think your father is 18 miserly.” said Jason. “He's a rich dentist but your eight-month-old brother has only a few 19 !”
Having heard this, Barry's face turned red and 20 .
1.
A. paper B. shoe
C. lock D. TV
2.
A. much B. more
C. few D. little
3.
A. food B. drinks
C. salt D. fruit
4.
A. lends B. buys
C. uses D. sells
5.
A. energy B. money
C. interest D. time
6.
A. listens to B. hears
C. looks at D. sees
7.
A. impossible B. hard
C. necessary D. difficult
8.
A. games B. housework
C. exercises D. experiments
9.
A. world B. family
C. grade D. country
10.
A. bad B. old
C. simple D. modern
11.
A. fails B. passes
C. appears D. does well
12.
A. spelling B. success
C. luck D. pronunciation
13.
A. mind B. punish
C. hate D. discover
14.
A. thin B. thick
C. strange D. cheap
15.
A. small B. strong
C. nice D. worn out
16.
A. thanked B. helped
C. laughed at D. looked after
17.
A. and B. but
C. or D. then
18.
A. more B. the most
C. much D. little
19.
A. noses B. ears
C. mouths D. teeth
20.
A. stood up B. got up
C. hurried off D. smiled
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