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  3. Science is finally beginning to embrace animals who were, for a long time, considered second-class citizens. As Annie Potts

Science is finally beginning to embrace animals who were, for a long time, considered second-class citizens. As Annie Potts

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问题     Science is finally beginning to embrace animals who were, for a long time, considered second-class citizens.
    As Annie Potts of Canterbury University has noted, chickens distinguish among one hundred chicken faces and recognize familiar individuals even after months of separation. When given problems to solve, they reason: hens trained to pick colored buttons sometimes choose to give up an immediate (lesser) food reward for a slightly later (and better) one. Healthy hens may aid friends, and mourn when those friends die.
    Pigs respond meaningfully to human symbols. When a research team led by Candace Croney at Penn State University carried wooden blocks marked with X and O symbols around pigs, only the O carriers offered food to the animals. The pigs soon ignored the X carriers in favor of the O’ s. Then the team switched from real-life objects to T-shirts printed with X or O symbols. Still, the pigs ventured only toward the O-shirted people: they had transferred their knowledge to a two-dimensional format, a not-in-considerable feat of reasoning.
    Fairly soon, I came to see that along with our closest living relatives, cetaceans (鲸目动物) too are masters of cultural learning, and elephants express profound joy and mourning with their social companions. Long-term studies in the wild on these mammals helped to fuel a perspective shift in our society: the public no longer so easily accepts monkeys made to undergo painful procedures in laboratories, elephants forced to perform in circuses, and dolphins kept in small tanks at theme parks.
    Over time, though, as I began to broaden out even further and explore the inner lives of fish, chicken, pigs, goats, and cows, I started to wonder: Will the new science of "food animals" bring an ethical revolution in terms of who we eat? In other words, will the breadth of our ethics start to catch up with the breadth of our science?
    Animal activists are already there, of course, committed to not eating these animals. But what about the rest of us? Can paying attention to the thinking and feeling of these animals lead us to make changes in who we eat?
What is the best title for the passage?
选项 A、In Praise of Food Animals
B、Food Animals in Science Reports
C、The Inner Lives of Food Animals
D、Food Animals: Past, Present and Future
答案C
解析 主旨题。题干问“本文最好的题目是什么?”A选项“赞扬食用动物”；B选项“科学报告中的食用动物”；C选项“食用动物的精神生活”；D选项“食用动物：过去、现在和未来”。通读全文可知C选项最符合文章内容，故选C。
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