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Passage 3 Not too many decades ago it seemed "obvious" both to the general public and to sociologists that modern society has changed people’s natural relations, loosened their responsibilities to kin and neighbors, and substituted in their place superficial relationships with passing acquaintances. However, in recent years a growing body of research has revealed that the "obvious" is not true. It seems that if you are a city resident, you typically know a smaller proportion of your neighbors than you do if you are a resident of a smaller community. But, for the most part, this fact has few significant consequences. It does not necessarily follow that if you know few of your neighbors you will know no one else. Even in very large cities, people maintain close social ties within small, private social worlds. Indeed, the number and quality of meaningful relationships do not differ between more and less urban people. Smalltown residents are more involved with kin that are big-city residents. Yet city dwellers compensate by developing friendships with people who share similar interests and activities. Urbanism may produce a different style of life, but the quality of life does not differ between town and city. Nor are residents of large communities any likelier to display psychological symptoms of stress or alienation, a feeling of not belonging, than are residents of smaller communities. However, city dwellers do worry more about crime, and this leads them to a distrust of strangers. These findings do not imply that urbanism makes little or no difference. If neighbors are strangers to one another, they are less likely to sweep the sidewalk of an elderly couple living next door or keep an eye out for size and its social heterogeneity. For instance, sociologists have found much evidence that the size of more likely than their small-town counterparts to have a cosmopolitan outlook, to display less responsibility to traditional kinship roles, to vote for leftist political candidates, and to be tolerant of nontraditional religious groups, unpopular political groups, and so-called undesirables. Everything considered, heterogeneity and unusual behavior seem to be outcomes of large population size. It can be inferred from the passage that the bigger a community is, ______.
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Passage 4 Some cities grow very large because of two important reasons. First, there may be important natural resources like wood, gas, oil, rivers or harbors near or in the city. Natural resources like wood or oil can be brought to the city and made into products to sell. Other resources, like rivers or harbors help to send the city’s products to other places to be sold. Second, the city may be located in a place where roads and rivers come together. This makes these cities good places to buy and sell goods. Houston is a city that grew large because it has two important natural resources. They are oil and a good harbor. The oil can be brought to Houston, made into different products, and shipped out of the harbor to other parts of the world. Chicago is a city that grew very large because of its location at a place where roads, railways, and airways meet. In Chicago, goods can be brought together from all over the country and bought and sold. Then the goods can be loaded into trucks, trains or planes and sent to wherever they are needed. Because of Chicago’s location, many people live and work there. Houston grows larger because of ______.
The visiting scholar gave the students an interesting and highly (information) ______ lecture.
Part A For questions 1 -5, you will hear a passage. Listen and answer the questions with the information you’ve heard. Write not more than 3 words in each blank. You will hear the recording twice. You now have 25 seconds to read the questions below. There is a special exhibition in Brighton in ______.
In recent years a new farming revolution has begun, one that involves the manipulation of life at a fundamental level—the gene. The study of genetics has (51) a new industry called biotcehnology. As the name suggests, it (52) biology and modern technology through such techniques as genetic engineering. Some of the new biotech companies specialize in agriculture and are working feverishly to (53) seeds that give a high yield, that (54) diseases, drought and frost, and that reduce the need for hazardous chemicals, If such goals could be achieved, it would be most (55) . But some have raised concerns about genetically engineered crops. In nature, genetic diversity is created within certain (56) . A rose can be crossed with a different kind of rose, but a rose will never cross with a potato. Genetic engineering, (57) usually involves taking genes from one species and inserting them into another in an attempt to transfer a desired characteristic. This could mean, for example, selecting a gene which leads to the production of a chemical with anti-freeze (58) from an artic fish, and inserting it into a potato or strawberry to make it frost, resistant, in essence, then, biotechnology allows humans to (59) the genetic walls that separate species. Just like the green revolution, (60) some call the gene revolution contributes to the problem of genetic uniformity-some say even more so (61) geneticists can employ techniques such as cloning and (62) culture (培养) and processes that produce perfectly (63) copies. Concerns about the erosion of biodiversity, therefore, remain. Genetically altered plants, however, raise new (64) ,such as the effects that they may have on us and the environment. "We are tlying blindly into a new era of agricultural biotechnology with high hopes, few constraints, and little idea of the potential (65) ," said science writer Jeremy Rifkin.
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