时间:2018-11-27 作者:英语课 分类:新概念优美背诵短文50篇


英语课

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 (visi 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 nonbroadcast 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。
学英语单词
'Fatty' Arbuckle
abrasive jet wear testing
alverca da beira
analytical reagent quality
artificial stability augmentation
avionic device
basic telecommunications access method
be born before one's time
biological universe
bisexual person
butter-and-eggs
catchment basi
chambruns
coal types
coille
columnar epithelial cells
Condrieu
consequence clause
corona model
Coronel Falcón
cosynes
curariaztion
Cymbidium lianpan
depths
diabetogenic factor
diseqilibrium
distributed virtual reality
domestic loom
donothingism
double-channel duplex
electron deficient system
equatorial region
eviota pellucida
Fehling's reagent
fervency
fissure of round ligament
gaunch
give depth to
goenka
Halomine
hand-made overshoe
Hayagriva
HD audio
hektographs
ideal capacity of production
Ikva
in cross section the cotyledon
interpenetrated
Jean Giraudoux
Lakeland Heights
lever latch
linge
litto
lodgepole pine
machine tool control transformer
mandrel steel
maxillary dental protrusion
melt into the scenery
menopon gallinaes
Mermer
metalloregulatory protein
mobile auxiliary gas trubine
morency
nasal stop
nonresident device handler
object graticule
ocean-going raft
optical data links
optimum die proportion
Option price
ovington
panning room
pearl body
pharmacobio-dynamics
photojournalistic
prohalone
pull-backs
Quarterly Cumulative Index Medicus
rolling mill stand
selenium stainless steel
self-flow reducer
skin traction of lower extremity
smk
space launching complex
spacing of planting spots
structure of the state
subdivision pteropsidas
Theodore of Canterbury, Saint
three faces of eve
throw a race
Toxostoma rufums
transistor package
tricritical
Trochacea
Trommer's test
tumoroid
united nations assessments
viscoelastic effect
whitegoods
withdrawal instruction
workstyles
worm gear feed