单选题His unexpected arrival threw everything into______.

单选题Picture-taking is a technique both for annexing the objective world and for expressing the singular self. Photographs depict objective realities that already exist, though only the camera can disclose them. And they depict an individual photographer"s temperament, discovering itself through the camera"s cropping of reality. That is, photography has two antithetical ideals: in the first, photography is about the world and the photographer is a mere observer who counts for little; but in the second, photography is the instrument of intrepid, questing subjectivity and the photographer is all. These conflicting ideals arise from a fundamental uneasiness on the part of both photographers and viewers of photographs toward the aggressive component in "taking" a picture. Accordingly, the ideal of a photographer as an observer is attractive because it implicitly denies that picture-taking is an aggressive act. The issue, of course, is not so clear-cut. What photographers do cannot be characterized as simply predatory or as simply, and essentially, benevolent. As a consequence, one ideal of picture-taking or the other is always being rediscovered and championed. An important result of the coexistence of these two ideals is a recurrent ambivalence toward photography"s means. Whatever the claims that photography might make to be a form of personal expression on a par with painting, its originality is inextricably linked to the powers of a machine. The steady growth of these powers has made possible the extraordinary informativeness and imaginative formal beauty of many photographs, like Harold Edgerton"s high-speed photographs of a bullet hitting its target or of the swirls and eddies of a tennis stroke. But as cameras become more sophisticated, more automated, some photographers are tempted to disarm themselves or to suggest that they are not really armed, preferring to submit themselves to the limits imposed by premodern camera technology because a cruder, less high-powered machine is thought to give more interesting or emotive results, to leave more room for creative accident. For example, it has been virtually a point of honor for many photographers, including Walker Evans and Cartier-Bresson, to refuse to use modem equipment. These photographers have come to doubt the value of the camera as an instrument of "fast seeing." Cartier-Bresson, in fact, claims that the modem camera may see too fast. This ambivalence toward photographic means determines trends in taste. The cult of the future (of faster and faster seeing) alternates over time with the wish to return to a purer past—when images had a handmade quality. This nostalgia for some pristine state of the photographic enterprise is currently widespread and underlies the present-day enthusiasm for daguerreotypes and the wok of forgotten nineteenth-century provincial photographers. Photographers and viewers of photographs, it seems, need periodically to resist their own knowingness.

单选题She was afraid that unless the train speeded up she would lose her ______ to Scotland A. ticket B. place C. seat D. connection

单选题In the opening paragraph, why does the author prefer to use the term "desiredness"?

单选题The teacher tried to explain the problem, but the explanation did not ______.

单选题______both in working life and everyday living to different sets of values, and expectations places a severe strain on the individual.(2002年3月中国科学院考博试题)

单选题The flower under the sun would ______ quickly without any protection. A. wink B. withhold C. wither D. widower

单选题He claims that advertising today tends to portray women in traditional roles such as cooking or taking care of the baby.(2004年中国人民大学考博试题)

单选题Childhood can be a time of great insecurity and loneliness, during which tile need to be accepted by peers ______ great significance.

单选题After 1989 the external______vanished, but the danger to American civilization remained. A. disruption B. menace C. liability D. emergence

单选题Some of the words employed by Shakespeare in his works have become ______ and are no longer used in the present days.

单选题The old woman is {{U}}chronically{{/U}} ill in bed and seldom goes out.

单选题October 1st is the______of the founding of the People's Republic of China.

单选题______telling her again since she won't listen to it?

单选题A leading British scholar has proposed translating Shakespeare into contemporary English______young audience who are confused by jokes which are 400 years out of date.(浙江大学2010年试题)

单选题What if our society uses new-found technologies of "genetic engineering" to interfere with the biological nature of human beings? Might that not be disastrous? What about cloning, for instance? Cloning is a term originally used in connection with nonsexual reproduction of plants and very simple animals. Now it is coming into use in connection with higher animals, since biologists are finding ways of starting with an individual cell of a grown animal and inducing it to multiply in the same way in the future. But is cloning a safe thing to unleash on society? Might it not be used for destructive purposes? For instance, might not some ruling group decide to clone their submissive, downtrodden peasantry, and thus produce endless hordes of semi-robots who will slave to keep a few in luxury and who may even serve as endless ranks of soldiers designed to conquer the rest of the world? A dreadful thought, but an unnecessary fear. For one thing, there is no need to clone for the purpose. The ordinary method of reproduction produces all the human beings that are needed and as rapidly as is needed. Right now, the ordinary method is producing so many people as to put civilization in danger of imminent destruction. What more can cloning do? Secondly, unskilled semi-robots cannot be successfully pitted against the skilled users of machine, either on farms, in factories or in armies. Any nation depending on downtrodden masses will find itself an easy mark for exploitation by a less populous but more skilled and versatile society. This has happened in the past often enough. But even if we forget about self-hordes, what about the cloning of a relatively few individuals? There are rich people who could afford the expense, or politicians who could have the influence for it, or the gifted who could undergo it by popular demand. There can be two of a particular banker or governor or scientist—or three—or a thousand. Might this not create a kind of privileged caste, who would reproduce themselves in greater and greater numbers, and who would gradually take over the world? Before we grow concerned about this, we must ask whether there will really be any great demand for cloning. Would you want to be cloned? The new individual that is formed by your cell will have your genes and therefore your appearance and, possibly, talents, but he will not be you. The clone will be, at best, merely your identical twin. Identical twins share the same genetic pattern, but they each have their own individuality and are separate persons. Cloning is not a pathway to immortality, then, because your consciousness does not survive in your clone, any more than it would in your identical twin if you had one. In fact, your clone would be far less than your identical twin. What shapes and forms a personality is not genes alone, but all the environment to which it is exposed. Identical twins grow up in identical surroundings, in the same family, and under each other's influence. A clone of yourself, perhaps thirty or forty years younger would grow up in a different world altogether and would be shaped by influences that would be sure to make him less and less like you as he grows older. He may even earn your jealousy. After all, you are old and he is young. You may once have been poor and struggled to become well-to-do, but he will be well-to-do from the start. The mere fact that you won't be able to view him as a child, but as another competing and better-advantaged you, may accentuate the jealousy. No! Imagine that, after some initial experiments, the demand for cloning will be virtually nonexistent.

单选题Some plants are so ______ to pollution that they can only survive in a perfectly clean environment.

单选题All representatives insisted that the problems requiring immediate solution be given ______.

单选题Can animals have a sense of humor? Sally Blanchard, publisher of a newsletter called the Pet Bird Report, thinks a pet parrot may have pulled her leg. That's one explanation for the time her African gray parrot, named Bongo Marie, seemed to feign distress at the possible death of an Amazon parrot named Paco. It happened one day when Blanchard was making Cornish game hen for dinner. As Blanchard lifted her knife, the African gray threw back its head and said, "Oh, no! Paco!" Trying not to laugh, Blanchard said, "That's not Paco," and showed Bongo Marie that the Amazon was alive and well. Mimicking a disappointed tone, Bongo Marie said, "Oh, no," and launched into a hoarse laugh. Was the parrot joking when it seemed to believe the other bird was a goner? Did Bongo Marie comprehend Blanchard's response? Studies of African grays have shown that they can understand the meaning of words--for example, that red refers to a color, not just a particular red object. Parrots also enjoy getting a reaction out of humans, and so, whether or not Bongo Marie's crocodile tears were intentional, the episode was thoroughly satisfying from the parrot's point of view.

单选题What feature sets apart the three dictionaries discussed in the passage from traditional ones ?