2017上半年公共英語三級考試備考練習

　　2017年上半年全國英語等級考試報名即將在11月份開始，報名前可提前備考復習。下面是yjbys網(wǎng)小編提供給大家關于公共英語三級考試備考練習，希望對大家的備考有所幫助。

　　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 individuals,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 divide C cut D divided

　　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

　　參考答案:

　　1--5 CCADB 6--10BCDAA

　　11--15CDCAD 16--20BACBD

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