单选题The major mason why Americans enjoy an abundant food supply is that the amble land at their disposal for food production is ______.
单选题Shy people never ______ set out to attract attention of other people. A. willingly B. voluntarily C. decidedly D. deliberately
单选题Television is one of today's most powerful and widespread means of mass communication. It directly influences our lives on both a short and long-term basis; it brings worldwide situations into our homes; it affords extensive opportunities for acquiring higher education; and it performs these tasks in a convenient yet effective manner. We are all aware of the popularly accepted applications of television, particularly those relative to entertainment and news broadcasting. Television, however, has also been a vital link in unmanned deep space exploration (such as the Voyager Ⅰ and Ⅱ missions), in providing visions from hazardous areas (such as proximity to radioactive materials or environments) in underwater research, in viewing storms moving across a metropolitan area (the camera being placed in a weather-protective enclosure near the top of a tower) , etc. The earth's weather satellites also use television cameras for viewing cloud cover and movements from 20, 000 miles in space. Infrared filters are used for night views, and several systems include a spinning mirror arrangement to permit wide-area views from the camera. Realizing the unlimited applications for today's television, one may thus logically ponder the true benefits of confining most of our video activities to the mass-entertainment field. Conventional television broadcasting within the United States centres around free enterprise and public ownership. This requires funding by commercial sponsors, and thus functions in a revenue-producing business manner. Television in USSR-subjected areas, conversely, is a government-owned and maintained arrangement. While such arrangements eliminate the need for commercial sponsorship, it also has the possibility of limiting the type of programs available to viewers (a number of purely entertainment programs similar to the classic "Bewitched", however, have been seen on these government-controlled networks. All isn't as gray and dismal as the uninformed might unnecessarily visualize). A highly modified form of television called Slow-Scan TV is presently being used by many Amateur Radio operators to provide direct visual communications with almost any area of the world. This unique visual mode recently allowed people on the tiny South Pacific country of Pitcairn Island to view, for the first time in their lives, distant areas and people of the world. The chief radio Amateur and communications officer of Pitcairn, incidentally, is the legendary Tom Christian-great, great grandson of Tom Christian of "Mutiny on the Bounty" fame. Radio Amateurs in many lands worked together for several months establishing visual capabilities. The results have proven spectacular, yet the visual capabilities have only been used for health education, or welfare purposes. Commercial TV is still unknown to natives of that tiny country. Numerous other forms of television and visual communication have also been used on a semi-restricted basis. This indicates the many untapped areas of video and television which may soon be exploited on a more widespread basis. The old clich of a picture being worth a thousand words truly has merit.
单选题The supply of electric power to the city and its neighboring districts has had to be______.
单选题As we have seen, the focus of medical care in our society has been shifting from curing disease to preventing disease—especially in terms of changing our many unhealthy behaviors, such as poor eating habits, smoking, and failure to exercise. The line of thought involved in this shift can be pursued further. Imagine a person who is about the fight weight, but does not ear very nutritious goods, who feels OK but exercises only occasionally. This person is not ill. She/He may not even be at risk for any particular disease. But we can imagine that this person could be a lot healthier.
The field of medicine has not traditionally distinguished between someone who is merely "not ill" and someone who is in excellent health and pays attention to the body"s special needs. Both types have simply been called "well". In recent years, however, some health specialists have begun to apply the terms "well" and "wellness" only to those who are actively striving to maintain and improve their health. People who are well are concerned with nutrition and exercise, and they make a point of monitoring their body"s condition. Most important, perhaps, people who are well take active responsibility for all matters related to their health. Even people who have a physical disease or handicap may be "well" in this new sense, if they make an effort to maintain the best possible health they can in the face of their physical limitations.
"Wellness" may perhaps best be viewed not as a state that people can achieve, but as an ideal that people can strive for. People who are well are likely to be better able to resist disease and to fight disease when it strikes. And by focusing attention on healthy ways of living, the concept of wellness can have a beneficial impact on the ways in which people face the challenges of daily life.
单选题He told a story about his sister who was in a sad______when she was ill and had no money.(2004年清华大学考博试题)
单选题The author says that the sheep he saw were similar to ______.
单选题Why did Sally Blanchard believe Bongo Marie made a joke that day?
单选题The term " quality of life" is difficult to define. It【C1】______a very wide scope such as living environment, health, employment, food, family life, friends, education, material possessions, leisure and recreation, and so on.【C2】______speaking, the quality of life, especially【C3】______seen by the individual, is meaningful in terms of the degree【C4】______which these various areas of life are available or provide【C5】______for the individual. As activity carried【C6】______as one thinks fit during one's spare time, leisure has the following【C7】______: relaxation, recreation and entertainment, and personal development. The importance of these varies according to the nature of one's job and one's life style.【C8】______, people who need to【C9】______much energy in their work will find relaxation most【C10】______in leisure. Those with a better education and in professional occupations may【C11】______more to seek recreation and personal development(e. g.【C12】______of skills and hobbies)in leisure. The specific use of leisure【C13】______from individual to individual. .【C14】______the same leisure activity may be used differently by different individuals. Thus, the following are possible uses of television watching, a【C15】______leisure activity, a change of experience to provide【C16】______from the stress and strain of work; to learn more about what is happening in one's environment; to provide an opportunity for understanding oneself by【C17】______other people's life experiences as【C18】______in the programs. Since leisure is basically self-determined, one is able to take【C19】______his interests and preferences and get【C20】______in an activity in ways that will bring enjoyment and satisfaction.
单选题The Quechua world is submerged, so to speak, in a cosmic magma that weighs heavily upon it. It possesses the rare quality of being as it were interjected into the midst of antagonistic forces, which in turn implies a whole body of social and aesthetic structures whose innermost meaning must be the administration of energy. This gives rise to the social organism known as the ayllu, the agrarian community that regulates the procurement of food. The ayllu formed the basic structure of the whole Inca empire. The central idea of this organization was a kind of closed economy, just the opposite of our economic practices, which can be described as open. The closed economy rested on the fact that the Inca controlled both the production and consumption of food. When one adds to this fact the religious ideas noted in the Quechua texts cited by the chronicler Santa Cruz Pachacuti, one comes to the conclusion that in the Andean zone the margin of life was minimal and was made possible only by the system of magic the Quechua constructed through his religion. Adversities, moreover, were numerous, for the harvest might fail at any time and bring starvation to millions. Hence the whole purpose of the Quechua administrative and ideological system was to carry on the arduous task of achieving abundance and staving off shortages. This kind of a structure presupposes a state of unremitting anxiety, which could not be resolved by action. The Quechua could not do so because his primordial response to problems was the use of magic, that is, recourse to the unconscious for the solution of external problems. Thus the struggle against the world was a struggle against the dark depths of the Quechua's own psyche, where the solution was found. By overcoming the unconscious, the outer world was also vanquished. These considerations permit us to classify Quechua culture as absolutely static or, more accurately, as the expression of a mere state of being. Only in this way can we understand the refuge it took in the germinative center of the cosmic mandala as revealed by Quechua art. The Quechua empire was nothing more than a mandala, for it was divided into four zones, with Cuzco in the center. Here the Quechua ensconced himself to contemplate the decline of the world as though it were caused by an alien and autonomous force.
单选题Those who let uncertainty ______ rarely achieve much. A. turn them down B. send them down C. weigh them down D. take them down
单选题______ commutation via the telegraph began in the 1840s, just before the Civil War, and via the telephone just afterward (1870s). A. Instantaneous B. Spontaneous C. Simultaneous D. Instinctive
单选题Tom was accused of ______ against black persons, that is to say, he looks down upon them. A. discriminating B. distinguishing C. distressing D. disguising
单选题With the purchasing power of many middle-class households _________ behind the cost of living, there was an urgent demand for credit.
单选题The German general staff made another dangerous concession to what they considered a military necessity. The plan would be______not when countries formally declared war but simply when they ordered mobilization.
单选题The passage suggests that most important cities in ancient Greece had an acropolis to ______.
单选题Analysts have had their go at humor, and I have read sortie of this interpretative literature, but without being greatly instructed. Humor can be dissected, as a frog can, but the thing dies in the process and the innards (内在部分) are discouraging to any but the pure scientific mind. In a newsreel theatre the other day I saw a picture of a man who had developed the soap bubble to a higher point than it had ever before reached. He had become the ace soap bubble blower of America, had perfected the business of blowing bubbles, refined it, doubled it, squared it, and had even worked himself up into a convenient lather. The effect was not pretty. Some of the bubbles were too big to be beautiful, and the blower was always jumping into them or out of them, or playing some sort of unattractive trick with them. It was, if anything, a rather repulsive sight. Humor is a little like that: it won't stand much blowing up, and it won't stand much poking. It has a certain fragility, an evasiveness, which one had best respect. Essentially, it is a complete mystery. A human frame convulsed with laughter, and the laughter becoming mysterious and uncontrollable, is as far out of balance as one shaken with the hiccoughs or in the throes of a sneezing fit. One of the things commonly said about humorists is that they are really very sad people—clowns with a breaking heart. There is some truth in it, but it is badly stated. It would be more accurate, I think, to say that there is a deep vein of melancholy running through everyone's life and that the humorist, perhaps more sensible of it than some others, compensates for it actively and positively. Humorists fatten on trouble. They have always made trouble pay. They struggle along with a good will and endure pain cheerfully, knowing how well it will serve them in the sweet by and by. You find them wrestling with foreign languages, fighting folding ironing boards and swollen drainpipes, suffering the terrible discomfort of tight boot (or as Josh Billings wittily called them, "tire boots"). They pour out their sorrows profitably, in a form that is not quite a fiction not quite a fact either. Beneath the sparking surface of these dilemmas flows the strong tide of human woe. Practically everyone is a manic depressive of sorts, with his up moments and his down moments, and you certainly don't have to be a humorist to taste the sadness of situation and mood. But there is often a rather fine line between laughing and crying, and if a humorous piece of writing brings a person to the point where his emotional responses are untrustworthy and seem likely to break over into the opposite realm, it is because humor, like poetry, has an extra content. It plays close to the big hot fire, which is Truth, and sometimes the reader feels the heat.
单选题It can be inferred from the passage that the mathematical theory of games has been ______.
单选题It is not long since conditions in the mines were worse than they are now. There are still 61 a few very old women who in their youth have worked 62 , with harness round their waists, and a chain 63 passed between their legs, crawling on all 64 and dragging tugs of coal. They used to go on 65 this even when they were pregnant. And 66 now, if coal could not be produced without pregnant women dragging it 67 and fro, I fancy we should let them do it 68 than deprive ourselves of coal. But most of the time, of course, we should 69 to forget that they were doing it. It is the 70 with all types of manual work; it keeps us alive, and we are oblivious of its existence. More than anything 71 perhaps, the miner can stand as the type of manual worker, not only because it is so vitally necessary and 72 so 73 that we are capable 74 forgetting it as we forget the blood in our veins. In 75 way it is even humiliating to watch coal-miners working. It raises in you a momentary doubt 76 your own status as an "intellectual" and a superior person generally. For it is brought 77 to you, at least while you are watching, that it is only 78 miners sweat their guts out 79 superior persons can 80 superior.
单选题Only a person with a pair of keen eyes could pick out those______paintings from these unwanted materials.