1、no botanist lives long enough to study the complete life cycle of an individual California redwood tree. Nevertheless, by observing many trees at different stages,botanists can piece together the evolution of a single tree. Exactly the same principle applies in astronomy to the study of the life-story of globular clusters,huge spherical aggregations of about a million stars all swarming about each other. Which if the following is an assumption made in the passage above? (A) the methods of scientists in one field generally carry over to other fields even if the subject matter is vastly different. (C) golobular clusters at different stages of development are accessible to astronomers for observation and study. 答案是：C 这道题是类比推理吧！C我明白但是我不明白为什么不选A呢！类比推理中方法的通用不也可以最为假设么！！为什么？？不对！！ 2、some people assert that prosecutors should be allowed to introduce illegally obtained evidence in criminal trials if the judge and jury can be persuaded that arresting officer was not aware of violating or did not intend to violate the law while seizing the evidence. this proposed "good-faith exception"would weaken everyone's constitutional protection, lead to less careful police practices, and promote lying by law enforcement officers in court. the argument above for maintaining the prohibition against illegally obtained evidence assumes that (A)defendants in criminal cases should enjoy greater protection from the law than other citizens do. (B)law enforcement authorities need to be encouraged to pursue criminals assiduously (C)the legal system will usually find ways to ensure that real crimes do not go unprosecuted. (D)the prohibition now deters some unlawful searches and seizures (E)courts should consider the motives of law enforcement officers in deciding whether evidence brought forward by the officers is admissible in a trial. 答案为d 为什么是禁止some unlawful searches and seizures呢！ 3、it has been hypothesized that much of the matter in the universe is "dark",i.e., inseen. studies have shown that galaxies in many galaxy clusters are moving faster with respect to one another than they would if visible stars constituted all their mass. the studies suggest that the galaxies are moving under the gravitational influence of unseen mass in considerable quantity. which of the following is an assumption underlying the passage above? (A)measurements of the speed of moving galaxies are extremly unreliable (B)the working of gravitational forces are not particularly well understood. (C)the aggregate mass of visible stars in the galaxies mentioned above can be estimated with some confidence. (D)the general composition of unseen matter in the universe has been determined (E)without exception, the galgaxies mentioned above move toward one another. 答案是：C studies have shown that galaxies in many galaxy clusters are moving faster with respect to one another than they would if visible stars constituted all their mass.是什么意思呢！！星系群中的星系物质比谁运动的快呢！if 条件句是做整个句子的条件句还是跟在they would 后面呢？
第二题：你是否看花了，答案是c；(d)the prohibition now deters some unlawful searches and seizures我认为是加强。
第三题：studies have shown that galaxies in many galaxy clusters are moving faster with respect to one another than they would if visible stars constituted all their mass. if 条件句是还是跟在they would 后面的。 我认为： a/b是削弱；c是假设；d是无关；e是加强。
以下是引用1stzhang在2003-5-3 22:14:00的发言： 第三题：studies have shown that galaxies in many galaxy clusters are moving faster with respect to one another than they would if visible stars constituted all their mass. if 条件句是还是跟在they would 后面的。 我认为： a/b是削弱；c是假设；d是无关；e是加强。
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发表于 2003-5-3 20:32:00
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