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1、精选优质文档-倾情为你奉上Unit 4 Turn Off TV: A Quiet HourI. Background Information1. TV: Past and PresentA demonstration of television was held at the New York Worlds Fair in 1939, and during the 1940s networks were established and television sets began to be sold. But, for a while, radio still had complete con
2、trol of the entertainment industry.In the early 1950s, the television started to take the place of radio in the United States. But television was only on in the evenings with few choices of stations and in less than one-third of American homes.In the early 1960s, over 750 TV stations were telecasted
3、 to about 52 million sets with the result that the American TV audience included almost every family. But today, virtually every American home has TV and two-thirds of American families have two or more sets, two-thirds have cable. There are a thousand stations with a choice of five or six channels
4、all over the country, not counting in the cable programs one can buy. The Big Three of the networks are: the National Broadcasting Company (NBC), the Columbia Broadcasting System (CBS), and the American Broadcasting Company (ABC).Besides networks, there are also another two TV broadcasting, one is c
5、able TV, community antenna television (CATV); the other is pay TV, also known as toll TV or subscription TV. The latter is different from the former in that it originates its own programs and charges a fee for viewing each program.But since the first modern home TV set was marketed in 1939, TVs infl
6、uence on America, for both good and bad has become a major force in determining how people relax and behave. The consequences are staggering. Studies show that the lives of Americans, from their selection of food to their choices of political leaders, are deeply affected by TV, and that influence is
7、 growing. It is clear that television has become one of the worlds most important sources of information, opinion, and entertainment. We can learn about places we shall never visit, we see important events as they take place; some programs we watch purely for entertainment. It gives us the best seat
8、s in the theater, at a rock concert, or at the Olympic Games. It also beams us pictures of war and disaster, the conquering of space, and other world events as they happen. 2. TV Program国际频道 international channel东方时空 Oriental Horizon焦点访谈 Focus Interview新闻联播 Network News科技博览 Panorama of Science & Tec
9、hnology文化视点 Culture Perspective读书时间 Off the shelf综艺大观 Variety Show天涯共此时 Sharing the moment with you电影频道 Movie Channel电视你我他 CCTV & Its Audience世界报道 Report on World Affairs海峡两岸 Across the Strait中国报道 China Report3. Generation GapThe term is used to mean differences in ideas, life styles and attitudes b
10、etween older and younger people, differences which will be result in a lack of understanding between them and frequently lead to confrontations.4. Divorce RateHigh divorce rate is a major social problem in the US. At present, it is estimated, about one quarter to one third of all American marriages
11、end in divorce. Although different in opinions, some studies indicate that there are more cases with the following reasons:A) low incomes B) inadequate education C) marriage at a very young ageThe immediate result that arises from the high divorce rate is an increasing number of single parent homes.
12、II. New words and expressions1.worthwhile: adj.【worth+while(a period of time)】good enough for the time or effort needed; valuableExample: It did not seem worthwhile writing it all out again. worth / worthy / worthwhile be worth +n.=be worthy of +n. be worth doing=be worthy of being done / be worthy
13、to be done It is worthwhile doing sth/to do sth这件事值得考虑。Example: The matter is worth considerationThe matter is worthy of considerationThe matter is worth consideringThe matter is worthy of being considered.The matter is worthy to be considered.It is worthwhile considering the matter.It is worthwhile
14、 to consider the matter.2. current:1) adj. of the present time; Example: We must counteract the present current of anti-government feeling.2) n. the movement of water in the sea or river; the movement of air in a particular direction; the fact of popular ideas, opinions, etc.Example: He swam to the
15、shore against a strong current.他逆着急流游向岸边。Birds use warm air current to help them flight.鸟儿利用暖流助飞。Television influenced the current of thought.电视影响思潮。3. activity: n. sth doneExample: Progress is the activity of today and the assurance of tomorrow.Activity is the only road to knowledge. A special feature of education at MIT is the opportunity for students and faculty to participate together in research activity.麻省理工学院的一个教育特色就是学生和全体教师有机会一起参与研究活动。（CET-4, 2006, 6, 词汇）4. prohibit: v.【pro-(before)+hibit(hold)】prohibite sb. (from) doing sth. = forbid sb. to do sth.Example: Family finances prohibi
