Part II

　　Notes to Reading Passage 1

　　1. the nucleus accumbens， the insular cortex， and the medial prefrontal cortex：

　　大脑的不同部位 (皮层，皮质等)

　　e.g. cerebellar cortex 小脑皮层cerebral cortex 大脑皮层

　　2. hone：

　　珩磨，磨快，磨练，训练使。。。更完美或有效。

　　3. subvert：

　　毁灭，破坏;摧毁：

　　4. piggyback：

　　骑在肩上;在肩上骑

　　5. deferment：

　　推迟、延迟、分期付款

　　6. aftertaste：

　　余味，回味事情或经历结束后的感觉，特指令人不快的感觉

　　Part III

　　Keys and explanations to the Questions 1-13

　　1. TRUE

　　See the second and third sentence in Paragraph A “Neoclassical economics assumes that the process of decision-making is rational. But that contradicts growing evidence that decision-making draws on the emotions—even when reason is clearly involved.”

　　2. TRUE

　　See the third sentence in Paragrph B “ Since emotion is the mechanism by which animals are prodded towards such outcomes， evolutionary and economic theory predict the same practical consequences for utility in these cases.”

　　3. FALSE

　　See the second sentence in Paragrph C “In particular， he suspects that modern shopping has subverted the decision-making machinery in a way that encourages people to run up debt.”

　　4. TRUE

　　See the last sentence in Paragrph E “Moreover， the level of its activity correlated with the reported desirability of the product in question.”

　　5. FALSE

　　See the second sentence in Paragrph F and G respectively “Excessively high prices increased activity in the insular cortex， a brain region linked to expectations of pain， monetary loss and the view.