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Questions 11 to 18 are based on the conversation you have just heard.
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Passage TwoQuestions 29 to 31 are based on the passage you have just heard.
Passage One Methods of training animals have changed greatly in recent years. Zoo keepers have always had problems getting the animals to leave their cages in order for the cages to be cleaned, and also training them to move indoors when appropriate. Another problem was that many of the large animals became listless and bored. In the last twenty years, scientists have done research on dolphins and whales, training them to obey commands. The scientists found they could get animals to obey by rewarding them with food and affection when they responded correctly. Proper training allows the animals to receive the care they need. It was very difficult to get untrained animals, especially the larger ones, to stay still when they needed medical attention. Now they can be trained, on command, to remain still and even to allow blood samples to be taken and shots administered. All this is accomplished through positive reinforcement, without the use of any force. Affection training, as this process is called, has been used with great success on a wide variety of zoo animals. Animal. behavior experts have taught zoo keepers to train bears, tigers, monkeys, and many other species to behave in a way that provides for better animal-keeper interaction. This training also keeps the animals from becoming bored and inactive. Although some people proclaim (谴责) that this training is inhumane and cruel to animals, results have shown that captive(猎获的) animals who previously were not doing well nourish under the new training procedures. The word "listless" means ______.
Questions 19 to 22 are based on the conversation you have just heard.
Passage Two With the rise of the great metropolis (大都市) in the industrial era, city planning in the West passed out of the hands of the architect and into the hands of the technical expert. Unlike the architect who thought of the city as a work of art to be built up with an eye toward beauty, the technical expert has always taken a purely functional approach to city planning; the city exists for the sole purpose of serving the needs of its inhabitants. Its outward appearance has no intrinsic (本质的) value. Over the span of a few centuries, this new breed of urban planner has succeeded in forever changing the face of the western city. A brief visit to any large metropolis is enough to confirm this fact. Even a casual observe could not fail to notice that the typical urban landscape is arranged along the lines of the tedious chessboard pattern, with its four-cornered intersections and long, straight and dull streets. Strict building codes have resulted in an overabundance of unsightly (难看的) neighborhoods in which there is only slight variation among structures. Rows of low concrete apartment houses and files of great steel and glass skyscrapers have almost completely replaced older, more personal buildings. Moreover, the lovely natural surroundings of many cities are no longer a part of the urban landscape. For the most part, the hills and rivers which were once so much a part of so many metropolitan settings have now been covered by thoughtless construction. The lone bright spot amidst all of this urban blight (贫民区) has been the local park system, which is to be found in most western cities. Large, centrally located parks—for example, New York’s Central Park or London’s Hyde Park—and smaller, remote parks bring a measure of beauty to western cities by breaking up the man-made monotony. With their green grass, dense woods, and pleasant ponds, streams and waterfalls, local park systems also offer a lot of opportunities for city dwellers to rest or recreate, free of the intense burdens of urban life. if they have understood nothing else about the quality of life in urban areas, technical experts have at least had the good sense to recognize that people need a quiet refuge (避难所) from the chaotic bustle (忙乱) of the city. The word "face" in the first sentence of Paragraph Two means ______.
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