※ 引述《kimoqueen (AT苦海何时能解脱~ @_@)》之铭言： : The population of peregrine falcons declined rapidly during : the 1950’s and 1960’s and reached an all-time low in the early 1970’s. : The decline was attributed by scientists to the widespread use of the : pesticide DDT in rural areas. : Which of the following, if true, gives the strongest support : to the scientists claim? : (A) DDT was not generally in use in areas devoted to heavy industry. : (B) In the time since the use of DDT was banned in 1972, : the population of peregrine falcons has been steadily increasing. : (C) Peregrine falcons, like other birds of prey, abandon eggs that : fallen out of the nest, even if the eggs remain intact. : (D) Starling, house sparrows, and blue jays-birds the peregrine : falcon prey on—were not adversely affected by DDT in their habitats. : (E) Other birds of prey, such as the osprey, the bald cage, and : the brown pclican, are found in the same area as is the peregrine falcon. : 答案是A 但我选B 这题重点是要支持 科学家的claim：DDT是大量使用在 rural areas (A)选项 把not去掉，即DDT是用在重工业的地方，反驳郊区，加上not刚好是支持 不过这个选项也有点缺陷，因为他也没提到 rural areas是否就没有重工业.... (B)即使population稳定成长，还是不足以支持DDT是用在郊区 : _____________________________________________________________________________ : In the 1960’s long-term studies of primate behavior often used as : subjects tamaris, small monkeys that were thought ideal because they : require only small cages, breed frequently, and grow quickly. : Field studies were not used because they were costly and difficult. : Tamarinds were kept caged in male-female pairs, because otherwise, : serious fights erupted between unrelated females. On the basis : of the fact that breeding occurred, tamarinds were viewed as monogamous. : The view taken by the researchers concerning the monogamy of tamarinds : deepened on a questionable assumption. : Which of the following could have served as that assumption? : (A) The suppression of fighting between related females serves to : protect their common genetic inheritance. : (B) Adult male tamarinds contribute to the care of tamarind infants. : (C) The social system of tamarinds requires monogamous pairing. : (D) Male tamarind monkeys do not display aggressive behavior in the wild. : (E) The way the tamarinds were kept in cages did not affect their : mating behavior. : 答案是E，但我选C : 请各位大大帮我分析一下，谢谢~ 感恩~ ^_^ 考假设，优先考虑有not的选项 剩D,E (E) 在cages中会影响牠们的 mating behavior,所以在cage外就不一定是一夫一妻制了 --

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