在此呈上 TPO72 阅读部分的详细答案及解析:
Passage 1
题目:Which of the following can be inferred from the passage about the "American Medical Association's criteria for classifying obesity"?
答案:The criteria have become outmoded.
解析:文章指出,美国医学协会关于肥胖症的分类标准是基于基于体重,而不考虑脂肪分布。然而,根据研究,脂肪分布对于健康的影响比体重更为重要,因此这一标准已经过时。
Passage 2
题目:What point does the passage make about the health recommendations for omega-6 fatty acids?
答案:Research has indicated that current recommendations for omega-6 fatty acids may be too high.
解析:文章指出,过去,人们认为 omega-6 脂肪酸有益健康,因此提倡摄入较多。但是,越来越多的研究表明,现行的推荐量可能过高,最好减少摄入量。
Passage 3
题目:The passage suggests that which of the following is true of carnivorous mammals?
答案:They generally have larger brains than other mammals.
解析:文章指出,与其它哺乳动物相比,食肉哺乳动物通常拥有较大的大脑。原因可能是,捕猎需要求助于高度的视觉判断和复杂的协同运动。
Passage 4
题目:Which of the following is true of the songs of humpback whales?
答案:They exhibit individual variation.
解析:文章提到,座头鲸的歌声是十分复杂的,有时长达半小时。不同座头鲸之间的歌声存在差异,甚至一只座头鲸自己的歌声也有变化。
Passage 5
题目:The passage suggests that which of the following is true of the Galapagos Islands?
答案:They are home to a large number of endemic species.
解析:文章指出,加拉帕戈斯群岛是植物、动物种类多样的地方,有许多物种都只生活在这些岛屿上,并且这些岛屿之间的生态差异也很大,它们是物种分化、进化的天然实验室。
Passage 6
题目:According to the passage, which of the following is a characteristic of the Hohokam civilization?
答案:It was an agricultural civilization.
解析:文章提到,霍霍卡姆文明是在一个相对缺水的地区发展起来的,人们发明了能够浇灌农作物的水利系统。因此,霍霍卡姆文明是一个以农业为基础的文明。
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