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Television—the most pervasive and persuasive of modern technologies, marked by rapid change and growth—is moving into a new era, an era of extraordinary (1)_____ and versatility, which promises to reshape our lives and our world. It is an electronic revolution of sorts, made possible by the (2)_____ of television and computer technologies. The word "television", derived from its Greek (tele: distant) and Latin (vision: sight) roots, can (3)_____ be interpreted as sight from distance. Very simply (4)_____, it works in this (5)_____: through a sophisticated system of electronics, television provides the capability of (6)_____ an image (focused on a special photo-conductive plate within a camera) into electronic impulses, which can be sent through a wire of cable. These impulses, when fed into a (7)_____ (television set), can then be electronically (8)_____ into that same image. Television is (9)_____ just an electronic system, (10)_____. It is a means of expression, as well as a (11)_____ for communication, and as such becomes a powerful tool for reaching other human beings. The field of television can be divided into two (12)_____ determined by its means of transmission. First, there is broadcast television, which reaches the masses through broad-based airwave transmission of television (13)_____. Second, there is non-broadcast television, which provides for the needs of individuals or (14)_____ interest groups through controlled transmission techniques. Traditionally, television has been a (15)_____ of the masses. We are most familiar with broadcast television (16)_____ 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 (17)_____ purveyors of news, information, and entertainment. These giants of (18)_____ have actually shaped not only television but our perception of it as well. We have come to (19)_____ the picture tube as a source of entertainment, placing our role in this (20)_____ medium as the passive viewer.
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Eating better and more adventurously is becoming an obsession, especially among people with money to spend. Healthier eating and not-so healthy eating—as well as the number and variety of food choices and venues continue to increase at an ever-quickening pace. Globalization is the master trend that will drive the world of food in the years a head. Consumers traveling the globe, both virtually and in reality, will be able to sweep up ingredients, packaged foods, recipes, and cooking techniques from every corner of the earth at an ever-intensifying and accelerating pace. Formerly remote ingredients and cooking styles are creating a whole new culinary mosaic as they are transplanted and reinterpreted all over the world. Many factors are behind this, but none more so than the influence of the great international hotel chains. Virtually every chef who has worked for Hilton, Westin, Peninsula, or any other major chain gathers global experience in locales as diverse as Singapore, New Orleans, Toronto, and Dubai. At each stop, they carry away cooking ideas and techniques they can and do use elsewhere. This trend will gain even greater momentum as ambitious young adults stake their own futures on internationalization, treating broader food savvy as an important aspect of their own advancement. Young people will need knowledge of food and ingredients from different continents and cultures as one aspect of socialization, enculturation, cultural exchange, and success. In country after country, there seems little doubt that global cuisine will make its biggest inroads among the younger set. Many in the generations now coming of age will treat world-ranging food knowledge and experience as key elements in furthering their personal plans, business acumen, and individual growth. The Internet has made global contacts a matter of routine. Computer networking will permit chefs and others in the food industry, including consumers, to link directly with the best available authorities in faraway nations, supplementing or bypassing secondhand sources of information altogether. Time, with all its implications, will also be a factor in emerging world food trends. More and more of us are destined to operate on global time—that is, at full tilt 24 hours a day. This will become the norm for companies with resources scattered all over the planet. Beyond the 24 hour supermarkets many of us already take for granted, there will also be three-shift shopping centers open at any hour. Restaurants in the great business capitals intent on cultivating an international clientele will serve midnight breakfasts or break-of-dawn dinners (with the appropriate wines) without raising a single eyebrow. The best title for the passage may be
食物网越复杂，生态系统就越稳定；食物网越简单，生态系统就越容易发生波动或遭受毁灭。
The telecity is a city whose life, direction, and functioning are largely shaped by telecommunications. In the twenty first century, cities will be based more and more on an economy that is dependent on services and intellectual property. Telecommunications and information networks will define a city"s architecture, shape, and character. Proximity in the telecity will be defined by the speed and bandwidth of networks as much as by geographical propinquity. In the age of the telecity, New York and Singapore may be closer than, say, New York and Arkadelphia, Arkansas. Telecities will supersede megacities for several reasons, including the drive toward clean air, reducing pollution, energy conservation, more jobs based on services, and coping with the high cost of urban property. Now we must add the need to cope with terrorist threats in a high-technology world. Western mind-sets were clearly jolted in the wake of the terrorist attack on the World Trade Center in New York City and attacks in Indonesia, Saudi Arabia, and else where. But the risks posed by twentieth-century patterns of urbanization and architecture have ye to register fully with political figures and leaders of industry. The Pentagon, for example, has been rebuilt in situation rather than distributed to multiple locations and connected by secure landlines and broadband wireless systems. Likewise, the reconstruction of the World Trade Center complex still represents a massive concentration of humanity and infrastructure. This is a remarkably shortsighted and dangerous vision of the future. The security risks, economic expenses, and environmental hazards of over-centralization are everywhere, and they do not stop with skyscrapers and large governmental structures. There are risks also at seaports and airports, in food and water supplies, at nuclear power plants and hydroelectric turbines at major dams, in transportation systems, and in information and communications systems. This vulnerability applies not only to terrorist threats but also to human error, such as system-wide blackouts in North America in August 2003 and in Italy in September 2003, and natural disasters such as typhoons, hurricanes, floods, and earthquakes. Leaders and planners are only slowly becoming aware that overcentralized facilities are the most vulnerable to attack or catastrophic destruction. There is also growing awareness that new broadband electronic systems now allow governments and corporations to safeguard their key assets and people in new and innovative ways. So far, corporations have been quickest to adjust to these new realities, and some governments have begun to adjust as well. Judging from the context, the word "they"(Line 2, Paragraph 4) might refer to
Television—the most pervasive and persuasive of modern technologies, marked by rapid change and growth—is moving into a new era, an era of extraordinary (1)_____ and versatility, which promises to reshape our lives and our world. It is an electronic revolution of sorts, made possible by the (2)_____ of television and computer technologies. The word "television", derived from its Greek (tele: distant) and Latin (vision: sight) roots, can (3)_____ be interpreted as sight from distance. Very simply (4)_____, it works in this (5)_____: through a sophisticated system of electronics, television provides the capability of (6)_____ an image (focused on a special photo-conductive plate within a camera) into electronic impulses, which can be sent through a wire of cable. These impulses, when fed into a (7)_____ (television set), can then be electronically (8)_____ into that same image. Television is (9)_____ just an electronic system, (10)_____. It is a means of expression, as well as a (11)_____ for communication, and as such becomes a powerful tool for reaching other human beings. The field of television can be divided into two (12)_____ determined by its means of transmission. First, there is broadcast television, which reaches the masses through broad-based airwave transmission of television (13)_____. Second, there is non-broadcast television, which provides for the needs of individuals or (14)_____ interest groups through controlled transmission techniques. Traditionally, television has been a (15)_____ of the masses. We are most familiar with broadcast television (16)_____ 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 (17)_____ purveyors of news, information, and entertainment. These giants of (18)_____ have actually shaped not only television but our perception of it as well. We have come to (19)_____ the picture tube as a source of entertainment, placing our role in this (20)_____ medium as the passive viewer.
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