【文章內(nèi)容簡介】 pportunities.Say you intend to watch a football match but the tickets are expensive and it will take you a couple of hours to get to and from the stadium. Why not, you might reason, watch the game from home and use the leftover money and time to have dinner with friends? This—the alternative use of your cash and time—is the opportunity cost.For economists, every decision is made by knowledge of what one must forgo—in terms of money and enjoyment—in order to take it up. By knowing precisely what you are receiving and what you are missing out on, you ought to be able to make betterinformed, more reasonable decisions. Consider that most famous economic rule of all: there’s no such thing as a free lunch. Even if someone offers to take you out to lunch for free, the time you will spend in the restaurant still costs you something in terms of forgone opportunities.Some people find the idea of opportunity cost extremely discouraging: imagine spending your entire life calculating whether your time would be better spent elsewhere doing something more profitable or enjoyable. Yet, in a sense it’s human nature to do precisely that—we assess the advantages and disadvantages of decisions all the time.In the business world, a popular phrase is “value for money.” People want their cash to go as far as possible. However, another is fast obtaining an advantage: “value for time.” The biggest restriction on our resources is the number of hours we can devote to something, so we look to maximize the return we get on our investment of time. By reading this passage you are giving over a bit of your time which could be spent doing other activities, such as sleeping and eating. In return, however, this passage will help you to think like an economist, closely considering the opportunity cost of each of your decisions.58. According to the passage, the concept of “opportunity cost” is applied to ________.A. making more money B. taking more opportunitiesC. reducing missed opportunities D. weighing the choice of opportunities59. The “l(fā)eftover ... time” in Paragraph 3 probably refers to the time ________.A. spared for watching the match at home B. taken to have dinner with friendsC. spent on the way to and from the match D. saved from not going to watch the match60. What are forgone opportunities?A. Opportunities you forget in decisionmaking. B. Opportunities you give up for better ones.C. Opportunities you miss accidentally. D. Opportunities you make up for.CMost damagingly, anger weakens a person’s ability to think clearly and keep control over his behaviour. The angry person loses objectivity in evaluating the emotional significance of the person or situation that arouses his anger.Not everyone experiences anger in the same way。 what angers one person may amuse another. The specific expression of anger also differs from person to person based on biological and cultural forces. In contemporary culture, physical expressions of anger are generally considered too socially harmful to be tolerated. We no longer regard duels (決斗) as an appropriate expression of anger resulting from one person’s awareness of insulting behaviour on the part of another. Anger can be identified in the brain, where the electrical activity changes. Under most conditions EEG (腦電圖) measures of electrical activity show balanced activity between the right and left prefrontal (額葉前部) areas. Behaviourally this corresponds to the general evenhanded disposition (意向) that most of us possess most of the time. But when we are angry the EEG of the right and left prefrontal areas aren’t balanced and, as a result of this, we’re likely to react. And our behavioural response to anger is different from our response to other emotions, whether positive or negative.Most positive emotions are associated with approach behaviour: we move closer to people we like. Most negative emotions, in contrast, are associated with avoidance behaviour: we move away from people and things that we dislike or that make us anxious. But anger is an exception to this pattern. The angrier we are, the more likely we are to move towards the object of our anger. This corresponds to what psychologists refer to as of ensive anger: the angry person moves closer in order to influence and control the person or situation causing his anger. This approachandconfront behaviour is acpanied by a leftward prefrontal asymmetry (不對稱) of EEG activity. Interestingly, this asymmetry lessens i