分析 本文主要介绍了一些有关荷尔蒙催生素的研究发现:荷尔蒙催生素造成了男女之间社交态度的差异;以及Ryan教授以前的与更进一步的实验结果:在消极的社会交往中,例如嫉妒时,荷尔蒙也会从我们体内释放出来;荷尔蒙催生素还能提升人们更好地区分不同社交互动的能力等.
解答 47 B 细节理解题 根据第一段"Women are friendly.But men are more competitive.Why?Researchers have found it's all down to the hormone oxytocin (荷尔蒙催生素)"可知,研究人员发现女人友好,男人更具竞争力,这一切都取决于荷尔蒙催生素;故选B
48 C 细节理解题 根据第三段"But in a previous experiment Professor Ryan found that the hormone is also let out in our body during negative social interactions such as envy"可知,在 Ryan 教授以前的一次试验中发现,在消极的社会交往中,例如嫉妒时,荷尔蒙也会从我们体内释放出来;故选C
49 A 细节推理题 根据最后一段Ryan教授得出的结论"Our experiment proves that the hormone oxytocin can raise people's abilities to better distinguish different social interactions."可知,他实验的目的在于证实了荷尔蒙催生素能提升人们更好地区分不同社交互动的能力;故选A
50 D 内容归纳题 通读全文可知,本文主要介绍了一些有关荷尔蒙催生素的研究发现,以及Ryan教授与之相关的以前的与更进一步的实验结果;故选D
点评 做本题时,首先应快速浏览全文,掌握文章的大意以及作者的写作思路;其次,可以通过对相关细节的理解,概括段落大意,以及通过逻辑推理或内容归纳,选出正确的答案.
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