9 月 14 日管卫东在线讲座讲义 逻辑 Q1. When hypnotized subjects are told that they are deaf and are then asked whether they can hear the hypnotist, they reply, “No.” Some theorists try to explain this result by arguing that the selves of hypnotized subjects are dissociated into separate parts, and that the part that is deaf is dissociated from the part that replies. Which of the following challenges indicates the most serious weakness in the attempted explanation described above? (A) Why does the part that replies not answer, “Yes”? (B) Why are the observed facts in need of any special explanation? (C) Why do the subjects appear to accept the hypnotist’s suggestion that they are deaf? (D) Why do hypnotized subjects all respond the same way in the situation described? (E) Why are the separate parts of the self the same for all subjects? Since the question elicits a reply, the question was presumably heard, but presumably not by the part that is deaf. The explanation’s obvious weakness, therefore, is that it fails to indicate why the part that replies would reply as if it were the part that isdeaf. Choice points to this failure and is the best answer. Choice B does not challenge the explanation itself, but the need for an explanation in the first place. Choices C and D raise pertinent questions concerning the facts described, but do not address the proffered explanation of those facts. Choice E points to a question to which the attempted explanation gives rises, but does not challenge the adequacy of the explanation. Q2 :Although fullerenes--spherical molecules made entirely of carbon--were first found in the laboratory, they have since been found in nature, formed in fissures of the rare mineral shungite. Since laboratory synthesis of fullerenes requires distinctive conditions of temperature and pressure, this discovery should give geologists a test case for evaluating hypotheses about the state of the Earth's crust at the time these naturally occurring fullerenes were formed. Which of the following, if true, most seriously undermines the argument? A. Confirming that the shungite genuinely contained fullerenes took careful experimentation. B . Some fullerenes have also been found on the remains of a small meteorite that collided with a spacecraft. C. The mineral shungite itself contains large amounts of carbon, from which the fullerenesapparently formed. D. The naturally occurring fullerenes are arranged in a previously unknown crystalline structure. E. Shungite itself is formed only under distinctive conditions 1 语法 Q3. In recent years cattle breeders have increasingly used crossbreeding, in part that their steers should acquire certain characteristics and partly because crossbreeding is said to provide hybrid vigor. (A) (B) (C) (D) (E) in part that their steers should acquire certain characteristics in part for the acquisition of certain characteristics in their steers partly because of their steers acquiring certain characteristics partly because certain characteristics should be acquired by their steers partly to acquire certain characteristics in their steers Choice is best; it best indicates purpose for crossbreeding-- partly to acquire. In A, in part that does not grammatically connect the underlined portion to the first part of the sentence (the independent clause). In both A and B, in part is not parallel with and partly in the nonunderlined portion. Choice C causes a misreading, suggesting that the steers' acquisition has caused the crossbreeding. D awkwardly and illogically shifts to the passive voice: certain characteristics should be acquired by their steers; the steers, however, are not agents in the acquisition. Q4:For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle. A. each a roof of poles and arrowweed B. each a roof of poles and arrowweed that are being C. with each being a roof of poles and arrowweed D. with roofs of poles and arrowweed to be E. with roofs of poles and arrowweed that are Q5: Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil, their descendants, popularly known as killer bees, had migrated as far north as southern Texas. A. Less than 35 years after the release of African honeybees outside Sao Paulo, Brazil, B. In less than 35 years since releasing African honeybees outside Sao Paulo, Brazil, C. In less than the 35 years since African honeybees had been released outside Sao Paulo, Brazil, D. It took less than 35 years from the release of African honeybees outside Sao Paulo, Brazil, when E. It took less than the 35 years after the time that African honeybees were released outside Sao Paulo, Brazil, and then 2 阅读 Q6 to Q7: Line (5) (10) (15) (20) (25) (30) (35) (40) One proposal for preserving rain forests is to promote the adoption of new agricultural technologies, such as improved plant varieties and use of chemical herbicides, which would increase productivity and slow deforestation by reducing demand for new cropland. Studies have shown that farmers in developing countries who have achieved certain levels of education, wealth, and security of land tenure are more likely to adopt such technologies. But these studies have focused on villages with limited land that are tied to a market economy rather than on the relatively isolated, selfsufficient communities with ample land characteristic of rain-forest regions. A recent study of the Tawahka people of the Honduran rain forest found that farmers with some formal education were more likely to adopt improved plant varieties but less likely to use chemical herbicides and that those who spoke Spanish (the language of the market economy) were more likely to adopt both technologies. Nonland wealth was also associated with more adoption of both technologies, but availability 3 of uncultivated land reduced the incentive to employ the productivity-enhancing tech(45) nologies. Researchers also measured land-tenure security: in Tawahka society, kinship ties are a more important indicator of (50) this than are legal property rights, so researchers measured it by a household’s duration of residence in its village. They found (55) that longer residence correlated with more adoption of improved plant varieties but less adoption of chemical herbicides. Q6: The passage suggests that in the study mentioned in line 27 the method for gathering information about security of land tenure reflects which of the following pairs of assumptions about Tawahka society? A. The security of a household’s land tenure depends on the strength of that household’s kinship ties, and the duration of a household’s residence in its village is an indication of the strength of that household’s kinship ties. B. The ample availability of land makes security of land tenure unimportant, and the lack of a need for secure land tenure has made the concept of legal property rights unnecessary. C. The strength of a household’s kinship ties is a more reliable indicator of that household’s receptivity to new agricultural technologies than is its quantity of nonland wealth, and the duration of a household’s residence in its village is a more reliable indicator of that household’s security of land tenure than is the strength of its kinship ties. D. Security of land tenure based on kinship ties tends to make farmers more receptive to the use of improved plant varieties, and security of land tenure based on long duration of residence in a village tends to make farmers more receptive to the use of chemical herbicides. E. A household is more likely to be receptive to the concept of land tenure based on legal property rights if it has easy access to uncultivated land, and a household is more likely to uphold the tradition of land tenure based on kinship ties if it possesses a significant degree of nonland wealth. 4 Q7: The findings of the study mentioned in line 27, if valid for rain-forest regions in general, suggest that which of the following is an obstacle most likely to be faced by those wishing to promote rain-forest preservation by implementing the proposal mentioned in line 1? A. Lack of legal property rights tends to discourage local farmers from investing the time and resources required to successfully implement new agricultural technologies. B. The ability to evaluate the wider economic ramifications of adopting new aricultural technologies depends on a relatively high level of formal education. C. Isolation from the market economy tends to restrict local farmers’ access to new agricultural technologies that could help them to increase their productivity. D. Ready availability of uncultivated land tends to decrease local farmers’ incentive to adopt new agricultural technologies that would reduce their need to clear new land for cultivation. E. Traditions of self-sufficiency and reliance on kinship ties tend to diminish local farmers’ receptivity to new agricultural technologies introduced by people from outside the local community. 5