阅读理解。CATVisshortfor“communityantenna(公用天线)television”.B...
问题详情:
阅读理解。
CATV is short for “community antenna (公用天线) television”. But “cable television” is the name most people like to use. Cable television can help people receive TV programs that they can not get with their ordinary(常规) antenna.
Television signals (信号) travel in straight lines in all directions. Signals from a TV station move towards the horizon(地平线) and then go into space. If people live only a few miles from a TV station, they may get a good picture on their televisions. But if they live more than 50 miles from a station, they may not get good pictures.
CATV began in 1948. People in places far from TV stations had to pay for it. A community antenna was usually placed on a hill, a mountain or on a high tower. The antenna can receive TV signals and send them into a small localstation (当地电视台).
Today, cable television is used in more and more areas. It is even used in many classrooms all over the country.
根据短文内容,判断正(T)误(F)。
( )1. Most people like using the name of “cable television”.
( )2. TV signals travel in curved lines.
( )3. People who live more than 50 miles from a station mustn’t get any pictures at all.
( )4. The antenna sends TV signals to local station.
( )5. The cable television can also be used in classrooms today.
【回答】
1T 2F 3F 4T 5T
知识点:日常生活类
题型:阅读理解
-
—Thestateofillnessiscomplicated.Weneedanexperienceddoct...
问题详情:—Thestateofillnessiscomplicated.Weneedanexperienceddoctor.—Whomwouldyouliketohave____? A.sentfor B.sendfor C.tosendfor D.beens...
-
设,若,则a=( )A.-1 B.0 C.2 D.3
问题详情: 设,若,则a=( )A.-1 B.0 C.2 D.3【回答】D知识点:导数及其应用题型:选择题...
-
美是一种感觉,当人体下半身长与身高的比值越接近0.618时,越给人一种美感.某女士身高165cm,下半身长x与...
问题详情:美是一种感觉,当人体下半身长与身高的比值越接近0.618时,越给人一种美感.某女士身高165cm,下半身长x与身高l的比值是0.60,为尽可能达到好的效果,她应穿的高跟鞋的高度大约为( )(A)4cm (B)6cm (C)8cm (D)10cm【回答】...
-
早春二月的某一天,A市的平均气温为-5℃,B市的平均气温为3℃,则当天B比A市的平均气温高
问题详情:早春二月的某一天,A市的平均气温为-5℃,B市的平均气温为3℃,则当天B比A市的平均气温高____________℃.【回答】8提示:3-(-5)=8.知识点:有理数的加减法题型:填空题...
相关文章
- 任务型阅读。OneofthemostimportantfestivalsinChinaisMidAutumn...
- 阅读理解Areyoustilldoingthe“V”forvictorysign?It’s outThelat...
- 阅读理解。WonderfulActivitiesforTeenagersinSummerVacationJoi...
- 阅读理解Maybethatsoundsdifficult,orisitexpensive?No!It’seas...
- 阅读理解。Vienna,thecapitalofAustria(奥地利)isknownasthecityofm...
- 阅读理解I’mtakingmyfamilytoothercountriestohaveatrip.Mywife...
- 阅读理解Inalmosteverybiguniversity(大学)intheUnitedStates,foo...
- 阅读理解Itisaboutseveno’clockinthemorning.Peterisonthebus.H...
- 阅读理解。DearLiz,Thankyousomuchforinvitingustothebirthdaypa...
- 阅读理解。TodayalmosteveryoneknowscomputersandtheInternet.If...