The Central Problem of Economics
　　The central problem of economics is to satisfy the people’s and nation’s wants.
　　The problem we faced with is that our resources,here identified as money are _1_.
　　The only way we can solve the problem is to _2_ choices.After looking at our resources,we must examine our list of _3_ and identify the things we need immediately,_4_ we can postpone,and those we cannot afford.As inpiduals,we face the central problem involved in economics---decideing how to allocate our limited resources to _5_ ourselves with greatest satisfaction of our wants.
　　Nations face _6_ problem.As a country’s population_7_,the need for more goods and services grows correspondingly.Resources necessary to production may increase,but there _8_ are enough resources to satisfy the total desires of a nation.Whether the budget meeting is _9_ in the family living room,in the conference room of the corporation _10_ of directors,or in the chamber of the House of Representatives in Washington,the basic problem still exists.We need to find _11_ of allocating limited resources in order to satisfy unlimited wants.
　　A short time ago,economists _12_ goods into two categories,free and economic.The former.,like air and water,were in _13_ abundance that economists had no concern for them.After all,economists is the _14_ of scarcity and what to do about it.Today many of these"free goods"are _15_ very expensive to use.Population has made clean air and water _16_ for producers who have to filter their waste products,for consumers who ultimately _17_ the producer’s extra cost,and _18_ taxpayers who pay for the government’s involvement _19_ the environment.
　　In the 1990s,almost all goods are scares.Only by effort and money_20_ obtained in the from people wish.
　　1. A abundant B scarce C limited D unlimited
　　2. A have B do C make D ask
　　3. A want B resources C want D problem
　　4. A some B others C that D those
　　5. A bring B provide C take D satisfy
　　6. A another B the same C the other D a same
　　7. A growing B grown C grows D grow
　　8. A sometimes B always C often D never
　　9. A taking place B happening C replacing D taking the place
　　10. A board B group C management D function
　　11. A means B approach C ways D method
　　12. A seperate B pide C cut D pided
　　13. A a so B great C such D such an
　　14. A study B form C means D source
　　15. A particularly B in practice C pracitally D in reality
　　16. A cheaper B more expensive C expensive D cheap
　　17. A pay for Bwill pay for C use D will use
　　18. A the B with C for D also
　　19. A cleaning B in cleaning C about cleaning D clean
　　20. A they can be B they must be C must they be D can they be
　　参考答案：CCADB BCDAA CDCAD BACBD
　　参考译文：
　　经济的核心问题是满足人民和国家的需要。
　　我们面临的问题是，我们的资源，这里被认为是资金有限。
　　我们解决这个问题的唯一方法就是做出选择。在看了我们的资源之后，我们必须检查我们的需求清单，并立即确定我们需要的东西、我们可以推迟的东西和我们负担不起的东西。作为个人，我们面临着经济中的核心问题——决定如何分配我们有限的资源来提供我们自己的资源。是我们最大的满足。
　　各国面临同样的问题。随着一个国家人口的增长，对更多商品和服务的需求也相应增长。生产所需的资源可能会增加，但从来没有足够的资源来满足一个国家的总愿望。无论预算会议是在家庭起居室、公司董事会会议室还是在华盛顿众议院举行，基本问题仍然存在。为了满足无限的需求，我们需要找到分配有限资源的方法。
　　不久前，经济学家把商品分为两类：自由商品和经济商品。前者和空气和水一样，都非常丰富，经济学家对此并不关心。毕竟，经济学家是研究稀缺性和如何解决稀缺性的。今天，许多这种“自由商品”的实际使用成本非常高。人口使清洁的空气和水变得洁净。对于必须过滤其废物的生产商、最终支付生产商额外成本的消费者以及为政府参与清洁环境而支付费用的纳税人来说，水的价格更高。
　　上世纪90年代，几乎所有的商品都是恐慌的，只有通过努力和金钱才能从人们的愿望中获得。