【正文】 t plants. It is a drug for treating anxiety, called oxazepam. It is accumulating in fish and makes them bolder. Wastewater treatment plants are not designed to get rid of drugs. As a result, the drugs end up in wildlife, reaching harmful levels. “It’s something we don’t think about very often, but there are a lot of similarities between fish and humans. So some of our responses to drugs can be seen in fish as well,” said Karen Kidd. She is a biologist at the University of New Brunswick, Canada. The moodaltering drugs get into waterways when people taking the prescriptions throw unused pills into the waste stream. The researchers let perch（ 鱸魚 ） swim in lab tanks with concentrations similar to those found downstream from wastewater treatment plants. “The perch preferred to swim alone rather than in large groups. They were more likely to explore their environment,” said Micael Jonsson of Ume229。 four red and one green. Easterners were more likely to choose a red pen while Westerners were more likely to choose the green one. Culture is not affecting how you see the world, but how you choose to understand and internalize（ 使內(nèi)化 ） it. But such habits can be changed. Some psychological studies suggest that when an Easterner goes to the West or vice versa, habits of thought and perception also begin to change. Such research gives us clues on how our brain works and is hopeful for us to develop programs to improve our memory, memory techniques and enhance and accelerate our learning skills. 57. According to the passage, Chinese people are most likely to ________. A. more emphasize independent thinking B. always focus more on their surroundings C. focus on the context as well as the object D. think of Westerners as highly independent units 58. We know from the passage that people’s brains will be more active when ________. A. the task is much easier B. the blood flow is tracked C. people begin to choose colors D. the task is more difficult 59. What does Dr Hedden39。s perception of the world can be changed. D. Americans are better at calculating than the Asians. 60. It can be inferred from the passage that ________. A. Easterners prefer collectivism to individualism B. East Asian cultures lay more emphasis on independence C. it took over ten years to find out how to improve our brainpower D. Americans will change their habits of perception when they’re in Britain D My grandmother Rosalind Einhorn was born exactly fiftytwo years before I was, on August 28, 1917. Like many poor Jewish families in New York City, hers lived in a small, crowded apartment close to their relatives. Her parents, aunts and uncles addressed her male cousins by their given names, but she and her sister were referred to only as “Girlie”. During the Depression, my grandmother was pulled out of Morris High School to help support the household by sewing fabric flowers onto undergarments that her mother could resell for a tiny profit. No one in the munity would have considered taking a boy out of school. A boy’s education was the family’s hope to move up the financial and social ladder. Education for girls, however, was less significant both financially, since they were unlikely to contribute to the family’s ine, and culturally, since boys were expected to study the Torah while girls were expected to run a “proper home”. Luckily for my grandmother, a local teacher insisted that her parents put her back into school. She went on not only to finish high school but to graduate from . Berkeley. After college, “Girlie” worked selling pocketbooks and accessories at David’s Fifth Avenue. When she left her job to marry my grandfather, David’s had to hire four people to replace her. Years later, when my grandfather’s paint business was struggling, she jumped in and took some of the hard steps he was unwilling to take, helping to save the family from financial ruin. She displayed her business ability again in her forties. After being diagnosed （ 診斷 ） with breast cancer, she beat it and then devoted herself to raising money for the clinic that treated her by selling some watches. Girlie ended up with a profit that Apple would envy. I have never met anyone with more energy and determination than my grandmother. When my grandmother had children of her own — my mother and her two brothers — she emphasized education for all of them. My mother attended the University of Pennsylvania. When she graduated in 1965 with a degree in French literature, she surveyed a workforce that she believed consisted of two career options for women: teaching or nursing. She chose teaching. She began a Ph. D. programme, got married, and then dropped out when she became pregnant with me. It was thought to be a sign of weakness if a husband needed his wife’s help to support their family, so my mother became a stayathome parent and an active volunteer. The centuriesold division of labor stood. Even though I grew up in a traditional home, my parents had the same expectations for me, my sister, and my brother. All the three of us were encouraged to do well in school, do equal routine tasks, and participate in afterschool activities. We were all supposed to be athletic too. My brother and sister joined sports teams, but I was the kid who got picked last in gym, despite my athletic shortings. I was raised to believe that girls could do anything boys could do and that all career paths were open to me. When I arrived at college in the fall of 1987, my classmates of both genders seemed equally focused on academics. I don’t remember thinking about my future career differently from the male students. I also don’t remember any conversations about someday balancing work and children. My friends and I assumed that we would have both. Men and women pete