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s in the brain 参考答案: D 本题是一道细节推导题。通过本题题干中的“peptide hormones are created in the brain in areas other than the hypothalamus”可将本题的答案信息来源迅速确定在尾段的第一句。尾段第一句主要就肽激素的“function”进行论述,可见本题的正确选项应该是D,选项D中的“role”就等于原文中的“function”。考生在解题时一定要善于抓住主句中的重要信息。----------------------------------------4Which of the following is mentioned in the text as a drawback of the immunological method of detecting peptide hormones? A.It cannot be used to detect the presence of growth regulators in the brain.B.It cannot distinguish between the peptide hormones and substances that are very similar to themC.It uses antiserums that are unable to cross the blood-brain barrierD.It involves a purification process that requires extensive training in endocrinology 参考答案: B 这是一道句间关系题。根据本题题干中的“the immunological method”可将本题的答案信息来源迅速确定在第二段的第二句,而本题的确切答题点在第二段的第三句的后半部分。从第二段第三句的后半部分可以推导出本题的正确答案是B。考生在解题时一定要注意一般概括句和具体陈述句之间的相互关系。----------------------------------------5The idea that the field of endocrinology can gain from developments in molecular biology is regarded by Roberts with A.incredulity.B.derision.C. indifference.D.enthusiasm. 参考答案: D 本题是一道细节推导题。根据本题题干中的人名“Roberts”可将本题的答案迅速确定在倒数第二段引号部分的第二句话,即“But”一词引导的句子。从该句中的“needed”一词可以看出本题的正确选项应该是D。考生在解题时一定要学会深入理解原文的字面含义。