首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The communications explosion is on the scale of the rail, automobile or telephone revolution. Very soon you’ll be able to record
The communications explosion is on the scale of the rail, automobile or telephone revolution. Very soon you’ll be able to record
admin
2015-09-26
59
问题
The communications explosion is on the scale of the rail, automobile or telephone revolution. Very soon you’ll be able to record your entire life electronically—anything a microphone or a camera can sense you’ll be able to store. In particular, the number of images a person captures in a lifetime is set to rise exponentially. The thousand images a year I take of my children on a digital camera are all precious to me. In a generation’s time, my children’s children will have total image documentation of their entire lives—a visual log of tremendous personal value.
By then we’ll be wrestling with another question; how we control all the electronic devices connected to the Internet: trillions of PCs, laptops, palmpilots, cell phones and other gadgets. In Cambridge, we’re already working on millimeter-square computing and sensing devices that can be linked to the Internet through the radio net work. This sort of connectivity will expand dramatically as microscopic communications devices become dirt-cheap and multiply. Just imagine what the paint on the wall could do if it had this sort of communications dust in it: change color, play music, show movies or even speak to you.
Falling costs raise other possibilities too. Because launching space vehicles is about to become very much cheaper, the number of satellites is likely to go up exponentially. There’s lots of space up there so we could have millions of them. And if you have millions of low-orbit satellites you can establish a global communications network that completely does away with towers and masts. If the satellites worked on the cellular principle so you got spatial reuse of frequencies, system capacity would be amazing.
Speech is so flexible that I expect voice communication to become almost free eventually: you’ll pay just a monthly fixed charge and be able to make as many calls as you want. By then people will also have fixed links with business contacts, friends and relatives. One day I anticipate being able to keep in touch with my family in Poland on a fibreoptic audio-video link; we’ll be able to have a little ceremony at supper-time, open the curtains and sit down "together" to eat.
Cars are an interesting IT-platform because they have big batteries and lots of so far unconnected digital devices. Soon each one will be an entity on the Internet so your children can play interactive games while you’re traveling and your partner can deal with their email. And every lamppost could be on the Internet too—each one with sensors to monitor light, pollution, air quality and traffic flow.
Which of the following is NOT among the functions of the communications dust according to the passage?
选项
A、To monitor light.
B、To change color.
C、To show movies.
D、To play music.
答案
A
解析
细节题。按照文章最后一段末句And every lamppost could be on the Internet too—each one withsensors to monitor light,pollution,air quality and traffic flow,即未来电线杆的功能之一是检测公路上的照明,所以[A]不是通讯粉末的功能,故为正确答案。第二段最后一句提到了通讯粉末的功能:change color([B]),play music([D]),show movies([C])or even speak to you。
转载请注明原文地址:https://kaotiyun.com/show/xlXK777K
0
专业英语四级
相关试题推荐
Wherecanpeopletakeadulteducationcourses?
Wherecanpeopletakeadulteducationcourses?
Wherecanpeopletakeadulteducationcourses?
TheUnitedStatesisatypicalcountry
Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthesunrevolvedaroundtheearth.An【C1】______7%did
Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthesunrevolvedaroundtheearth.An【C1】______7%did
Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthesunrevolvedaroundtheearth.An【C1】______7%did
Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthesunrevolvedaroundtheearth.An【C1】______7%did
Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthesunrevolvedaroundtheearth.An【C1】______7%did
随机试题
按照钢中碳含量分类,45钢属于()。
(2011年4月,2010年4月)各国的国际私法著作中,有称这个法律部门为“国际私法”的,有称其为“冲突法”的。大陆法系各国多称为_____。而立法上,更有直接称之为“涉外民事法律适用法”的。
________在新产品进入成熟期后期乃至进人衰退期才会采用。()
垂直传播的途径是
慢性活动性胃炎的治疗应特别注意采用
某公司沉箱预制场预制沉箱,每个沉箱混凝土为480m3,混凝土强度等级为C30,该预制场实际统计的混凝土σ=3.0MPa,经计算和试配,混凝土的配合比为1:2.5:3.5,用有效搅拌量为2.0m3的搅拌机搅拌混凝土,正常施工条件下(砂、石含水忽略不计)每罐混
黄老师在指导学生分析了起承转合的发展结构后,要求学生根据个人的生活体验运用起承转合的手法,自由写作音乐片段。上述教学行为体现了《义务教育音乐课程标准(2011年版)》中的哪个基本理念?()
Atthebeginningoftheprogram,thespeaker
A、Mountainclimbing.B、Hiking.C、Tailriding.D、Fishing.A
A、Byitslength.B、Byitstaste.C、Byitsshape.D、Byitscolor.D
最新回复
(
0
)