时间:2018-12-07 作者:英语课 分类:高级听力练习


英语课

Television


Television-----the most pervasive 1 and persuasive 2 of modern technologies, marked by rapid change and growth-is moving into a new era, an era of extraordinary sophistication and versatility 3, which promises to reshape our lives and our world. It is an electronic revolution of sorts, made possible by the marriage of television and computer technologies.


  The word "television", derived 4 from its Greek (tele: distant) and Latin (visio: sight) roots, can literally 5 be interpreted as sight from a distance. Very simply put, it works in this way: through a sophisticated system of electronics, television provides the capability 6 of converting an image (focused on a special photoconductive plate within a camera) into electronic impulses, which can be sent through a wire or cable. These impulses, when fed into a receiver (television set), can then be electronically reconstituted into that same image.


  Television is more than just an electronic system, however. It is a means of expression, as well as a vehicle for communication, and as such becomes a powerful tool for reaching other human beings.


  The field of television can be divided into two categories determined 7 by its means of transmission. First, there is broadcast television, which reaches the masses through broad-based airwave transmission of television signals. Second, there is non broadcast television, which provides for the needs of individuals or specific interest groups through controlled transmission techniques.


  Traditionally, television has been a medium of the masses. We are most familiar with broadcast television because it has been with us for about thirty-seven years in a form similar to what exists today. During those years, it has been controlled, for the most part, by the broadcast networks, ABC, NBC, and CBS, who have been the major purveyors of news, information, and entertainment. These giants of broadcasting have actually shaped not only television but our perception of it as well. We have come to look upon the picture tube as a source of entertainment, placing our role in this dynamic medium as the passive viewer.




1 pervasive
adj.普遍的;遍布的,(到处)弥漫的;渗透性的
  • It is the most pervasive compound on earth.它是地球上最普遍的化合物。
  • The adverse health effects of car exhaust are pervasive and difficult to measure.汽车尾气对人类健康所构成的有害影响是普遍的,并且难以估算。
2 persuasive
adj.有说服力的,能说得使人相信的
  • His arguments in favour of a new school are very persuasive.他赞成办一座新学校的理由很有说服力。
  • The evidence was not really persuasive enough.证据并不是太有说服力。
3 versatility
n.多才多艺,多样性,多功能
  • Versatility is another of your strong points,but don't overdo it by having too many irons in the fire.你还有一个长处是多才多艺,但不要揽事太多而太露锋芒。
  • This versatility comes from a dual weather influence.这种多样性是由于双重的气候影响而形成的。
4 derived
vi.起源;由来;衍生;导出v.得到( derive的过去式和过去分词 );(从…中)得到获得;源于;(从…中)提取
  • Many English words are derived from Latin and Greek. 英语很多词源出于拉丁文和希腊文。 来自《简明英汉词典》
  • He derived his enthusiasm for literature from his father. 他对文学的爱好是受他父亲的影响。 来自《简明英汉词典》
5 literally
adv.照字面意义,逐字地;确实
  • He translated the passage literally.他逐字逐句地翻译这段文字。
  • Sometimes she would not sit down till she was literally faint.有时候,她不走到真正要昏厥了,决不肯坐下来。
6 capability
n.能力;才能;(pl)可发展的能力或特性等
  • She has the capability to become a very fine actress.她有潜力成为杰出演员。
  • Organizing a whole department is beyond his capability.组织整个部门是他能力以外的事。
7 determined
adj.坚定的;有决心的
  • I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
  • He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
标签: 高级 听力练习
学英语单词
ablend
adaptive feedforward control
amiloxate
anging
Belitong, Sungai
benzylene chloride
biosome(lehmann 1947)
biostratification
Bosanski Brod
campaignable
catalyst-oil suspension
chemical digestion
citify
colcemid
colo(u)r information
compound file
computer documentation
coode
Croning process
deep blastomycosis
demandable
diplon
divergence-angle correction factor
Eagle I.
early indicator
empressing
encephalomeningocystocele
epileptic convulsion
estimate premium
fall through the cracks
flash-lock
forced draft boiler
frisbeed
fuel flow divider
fusarium wilt of sweet potato
illiterate
individual incentive schemes
insufficient
irreclaimed
kafka-esque
kamien
knowledge-box
Koser's citrate medium
labor unionist
Latrecey
Lehmkuhlen
light years
low-frequency electrical porcelain
magnetic molding machine
main venturi
mechanical transportation
membranous dysentery
meridian central projection
Mimizan-les-Bains
mini-breaks
misstate
nannygoat
nanos
nonreinforcement
Northern Isles
notice to airmen
nuclear powered icebreaker
once every two weeks
one's true colors
open-circuit input impedance
outstanding frame
pan-Satanism
partaken in
pcsps
pedologists
penetration gland
pentagraph
percentage of log correction
plane progressive wave
polymer inhibitor
pomegranatelike
porbeagles
power band
rampager
reflected heat
rived
sellin'
semi-hydraulic fill dam
set decorations
single pipe brake system
solventia
soprano recorder
starting tractive
stillage
stock recycle
supervisor processor
suspended lamp
throw bouquet at
thrust with
topographical manuscript
tread the stage
Vena ophthalmica inferior
vulcanization
weighing tank
wired
woobie
Zonhoven