题目内容
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： CATV is a short way of saying"community antenna television."But"cable television"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 do not follow the curve of the earth.They travel in straight lines in all directions. Signals from a TV station move toward the horizon and then go into space.If you live only a few miles from a station,you may not get any picture 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 cables 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 reports,and farm and school news at no extra 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.
What does the speaker say about television signals？
查看答案
搜索结果不匹配？点我反馈
更多问题
听力原文： I'll still be working. But things will be different. With any luck, I'll be earning more money. The most important thing will be the job itself, and how interesting it is. I mean, I hope I'll be able to choose the kind of job I do and 5vho I work for. Of course, I' d like to have more money and more authority than I have now. But I don' t think that' s the only thing in life. What I really want is to be more independent than I am now, to have more control over my own life. Perhaps open a small restaurant, or write a book or something like that. I' m not really sure if I'll ever have children, or even if I want to be married. It all depends. Of course, if I meet the right person, anything could happen. But I won' t feel that my life is empty and meaningless if I' m still living alone ten years, or even twenty years from now. Not at all. My mother is always saying there is nothing like a good relationship. But I am not so sure. There is nothing worse than a really bad one, either.
(33)
What is most probably the relationship between the woman and the man？
W: Well, we did spend a lot on our vocation. In fact, we didn't know exactly how much was in our bank account.
Q: What are they talking about？
(15)
听力原文：W: Hi, John!
M: Oh. Hi, Laura. What' re you doing here？
W: Uh ... I' m usually here on weekends. It' s my dad' s shop. So you' re looking for a bike？
M: Yeah. Now that the weather' s warming up, I thought 1' d get some exercisc—instead of taking the bus all the time.
W: Well, you came to the fight place. Do you know what you' d like？
M: Well, I don' t want a racer or a touring bike or anything. Mostly I' 11 just be using it to get me back and forth from work.
W: How far is that？
M: About four miles.
W: Are there a lot of hills on the way？
M: Some, I guess, But ... uh ... maybe I should just tell you up front that I' ye only got a hundred and fifty dollars. Can I get anything decent for that？
W: Well, you' re not going to get anything top-of-the-line--but we do have a few trade-ins in the back that' re in good condition.
M: That sounds good.
W: And you' re fight, for the kind of riding you' re going to be doing, the most important thing is comfort. You want to make sure it' s the right height for you. Follow me and I' 11 show you what we' ve got.
(20)
微信支付 
支付宝支付