The central problem of economics is to satisfy the peoples and nations wants.
The problem we are faced with is that our resources, here identified as money, are __1__. The only way we can resolve our problem is to make choices. After looking at our resources, we must examine our list of __2__ and identify the things we need immediately, those we can postpone, and __3__ we cannot afford. As individuals, we face the central problem involved in economics-deciding just how to allocate our limited our limited resources to provide __4__ with the greatest satisfaction of our wants.
Nations face the same problem. As a countrys population ___5__, the need for more goods and services grows correspondingly. Resources necessary to production may increase, but there __6__ are enough resources to satisfy the total desires of a nation. Whether the budget meeting is taking place in the family living room, in the conference room of the corporation __7__ of directors, or in the chamber of the House of Representatives in Washington, the basic problem still exists. We need to find __8__ of allocating limited resources in order to satisfy unlimited wants.
A short time ago economists divided goods into two categories, free and economic. The former, like air and water, were in __9__ abundance that economists had no concern for them. After all, economics is the __10__ of scarcity and what to do about it. Today many of these free goods are __11__ very expensive to use. Pollution has made clean air and water expensive for producers extra costs, and __12__ taxpayers who pay for the governments involvement in cleaning the environment.
In the 1990s, almost all goods are __13__. Only by effort and money __14__ obtained in the form people wish.
Meeting needs of people and the demands from resource available __15__ the basic activity of production. In trying to meet unlimited wants from limited economic goods, production leads to new problems in economics.
EXERCISE:
1. A) limited B) unlimited C) scarcity D) abundant
2. A) want B) problem C) wants D) resources
3. A) those B) some C) others D) many
4. A) them B) themselves C) ourselves D) ours
5. A) expand B) extends C) grows D) increase
6. A) always B) sometimes C) often D) never
7. A) management B) function C) board D) group
8. A) people B) economists C ) way D) methods
9. A) so B) great C) such D) such an
10. A) form B) study C) means D) source
11. A) practically B) in practice C)in reality D) practicably
12. A) the B) / C) for D) with
13. A) plentiful B) scarce C) abundant D) in full supply
14. A) they can be B) can they be C) they must be D) must they be
15. A) are led to B) leads C) lead to D) leads to
KEY:
A C A C C D C D C B C C B B D
一般过去时的语法知识
英语语法:指示代词
英语语法:关系代词
英语语法:冠词的位置
英语语法:零冠词的用法
英语语法:both, either, neither, all, any, none的区别
英语语法:代词比较辩异 one,that 和it
英语语法:every , no, all, both, neither, nor的区别
不定式作宾语补足语速记语法口诀
英语语法:物主代词
英语语法:人称代词的用法
过去进行时的语法知识
感叹句速记语法口诀
other, the other, another, others, the others的区别
few, a few, little, a little在用法上的区别
形容词和副词速记口诀
英语语法:代词的指代问题
英语语法:并列人称代词的排列顺序
英语语法:人称代词之主、宾格的替换
英语语法:疑问代词
一般将来时语法应用知识
英语语法:anyone/any one;no one/none;every/each的区别
过去将来时的语法知识
英语语法:数词的应用
英语语法:双重所有格
不定代词的用法
冠词用法的速记口诀
英语语法:none, few, some, any, one, ones的区别
中考英语选择填空得分要点:注意特殊的语法现象
接动名词作宾语的动词速记口诀
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