首页
登录
职称英语
[originaltext] CATV is a short way of saying "community antenna television."
[originaltext] CATV is a short way of saying "community antenna television."
游客
2024-01-30
38
管理
问题
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.
16 What does the speaker say about television signals?
17 What should people do if they used the cable?
18 What happens after cable television has moved into cities?
选项
A、All classrooms use cable television.
B、City people can see extra programs.
C、The charge of cable is much lowered.
D、TV signals can be received more easily.
答案
B
解析
短文提到,有线电视进入城市后,给城市观众带来了普通天线无法提供的额外节目,故B正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3405827.html
相关试题推荐
[originaltext]W:Goodmorning,Mr.Pitt.Dositdown.M:Thankyou.W:Firstof
[originaltext]M:Hello.W:Hello,welcometo"Advice"radioprogram.What’syou
[originaltext]ThebodiesofdozensofAfricanimmigrants,discoveredoffth
[originaltext]ThebodiesofdozensofAfricanimmigrants,discoveredoffth
[originaltext]DozensofrecordingstarsbegangatheringonaHollywoodstud
[originaltext]AnIndonesiaferrypackedwithhundredsofrefugeesescaping
[originaltext]AnIndonesiaferrypackedwithhundredsofrefugeesescaping
[originaltext]Nowadaystherearemoreandmorewaysofgoingonholiday.Mo
[originaltext]Togetadriver’slicense,youmusttakeaseriesoftests.
[originaltext]Togetadriver’slicense,youmusttakeaseriesoftests.
随机试题
Itwastwoyearsagotodaythatthehuntingbancameintoforce,supposedly
[originaltext]M:IhopeIdon’toversleep.Ihavegottocatchthefirstflight
[originaltext]Californiaisalandofvarietyandcontrast.Almosteveryty
TheInvisibleFuelProvidesEnsuranceforEnergySecurityintheFut
WhyYouShouldn’tFreakOutAboutSwarmingHoneybees—andHowtoSaveBeesFr
基金管理人、基金托管人和其他基金信息披露义务人应当依法披露基金信息,并保证所披露
杆体细胞能分辨物体的()。单选A.细节和颜色 B.明暗和颜色 C.轮廓
2020年10月境外广告公司为境内甲企业提供广告服务,合同含税价款100万美元,
B公司生产、销售一种产品,该产品的单位变动成本为60元,单价为80元。公司目前采
D公司是从事普通民用机械制造的中央企业,正在编制下一年度预算。根据其前8个月的经
最新回复
(
0
)