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1、Week 7TuesdayTask 1：阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。(2014江苏，B)However wealthy we may be，we can never find enough hours in the day to do everything we want.Economics deals with this problem through the concept of opportunity cost，which simply refers to whether someones time or money could be bette
2、r spent on something else.Every hour of our time has a value.For every hour we work at one job we could quite easily be doing another，or be sleeping or watching a film.Each of these options has a different opportunity costnamely，what they cost us in missed opportunities.Say you intend to watch a foo
3、tball 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？Thisthe alternative use of your cash and timeis the opportunity cost.For e
4、conomists，every decision is made by knowledge of what one must forgoin terms of money and enjoymentin 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 econom
5、ic rule of all：theres 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 you
6、r entire life calculating whether your time would be better spent elsewhere doing something more profitable or enjoyable.Yet，in a sense its human nature to do precisely thatwe assess the advantages and disadvantages of decisions all the time.In the business world，a popular phrase is“value for money.
7、”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 a
8、re 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.【语篇解读】本文是一篇说明文，作者通过生动简洁的例子向读者论述了经济学家提出的“机会成本”的概念。1Accor
9、ding to the passage，the concept of “opportunity cost” is applied to _Amaking more moneyBtaking more opportunitiesCreducing missed opportunitiesDweighing the choice of opportunities答案D细节理解题。根据文章第一自然段第二句话对“机会成本”这一概念的论述可知“机会成本”是用来衡量机会选择的。故选D。2The “leftover.time” in Paragraph 3 probably refers to the ti
10、me _Aspared for watching the match at homeBtaken to have dinner with friendsCspent on the way to and from the matchDsaved from not going to watch the match答案C细节理解题。根据文章第三段第二句话内容可知，一开始观看现场表演需金钱和路途上的时间，而后选择在家看比赛就可节省出来回途中的时间，故选C。3What are forgone opportunities?AOpportunities you forget in decisionmakin
11、g.BOpportunities you give up for better ones.COpportunities you miss accidentally.DOpportunities you make up for.答案B细节理解题。根据文章第四自然段可以看出做出每一决定都会放弃另一种机会forgone opportunity的概念即指为了更好的选择而放弃掉的机会，故选B。Task 2：词汇积累1economics n经济学2option n选择3namely adv.也就是4alternative adj.选择性的5in terms of依据；在方面6precisely adv.精
12、确地7reasonable adj.合理的8discouraging adj.使人沮丧的9calculate v计算10profitable adj.赚钱的；有益的11in a sense 在某种意义上12restriction n限制13investment n投资14in return 作为回报Task 3：经典句式1However wealthy we may be，we can never find enough hours in the day to do everything we want.无论我们多么富裕，我们永远无法找到足够的时间去做所有我们想要做的事情。解读howevern
13、o matter how，在此引导让步状语从句。仿写无论你什么时候需要帮忙，不要犹豫，找我就行。Dont hesitate to turn to me for help whenever_you_need_it. 2Consider that most famous economic rule of all：theres no such thing as a free lunch.考虑一下那最著名的经济规则：天下没有免费的午餐。解读“there is no such单数名词”意为“没有这样的”，其中单数名词前不可再加冠词，相当于“not such a/an单数名词”。仿写在大多数情况下，根本没有十拿九稳的事。In most cases, theres_no_such_thing_as certainty.
