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填空题英语四级

2008-11-16

whereas animals kept awake for five to eight days have died of　9　

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【解析】选[L]。空前的of表明此处应填一名词，故[M]starvation{饥饿)和[L]exhaustion(筋疲力尽)入选。此处是对人类和动物的睡眠极限进行研究，并没有说不给食物，故答案为[L]。

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1 The　10　for human beings is probably about a week

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2 Directions : There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four Choices marked A．, E B．, E C．and D J . You should decide on the best choice and mark the corresponding letter oh Answer Sheet 2 with a single line through the centre.
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　　The United States is said to have a mixed economy because privately Owned business and government both play important roles. Indeed, some of the most enduring debates of American economic history focus on the relative roles of the public and private sectors.
　　The American free enterprise system emphasizes private ownership. Private businesses produce most goods and services, and almost two-thirds of the nation's total economic output goes to individuals for personal use (the remaining one-third is bought by government and business). The consumer role is so great, in fact, that the nation is sometimes characterized as having a "consumer economy".
　　This emphasis on private ownership arises, in part, froth American beliefs about personal freedom. From the time the nation was created, Americans have feared excessive government power, and they have sought to limit government's authority over individuals -- including its role in the economic realm. In addition, Americans generally believe that an economy characterized by private owner- ship is likely to operate more efficiently than one with substantial government ownership.
　　When economic forces are unfettered, Americans believe, supply and demand determine the prices of goods and services. Prices, in turn, tell businesses what to produce; if people want more of particular goods than the economy is producing, the price of the goods rises. That catches the attention of new or other companies that, sensing an opportunity to earn profits, start producing more of that goods. On the other hand, if people want less of the goods, prices fall and less competitive producers either go out of business or start producing different goods.
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3 From the first sentence of the third paragraph, we learn that_________

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C．private ownership is important because of American beliefs in personal freedom

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