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Public goods are those products from whose enjoyment nobody can be effectively excluded. Everybody is free to enjoy the benefits of these commodities, and one person’s utilization(利用)does not reduce the possibilities of anybody else’s enjoying the same good.Examples of public goods are not as rare as one might expect. A flood control dam is a public good. Once the dam is built, all persons living in the area will benefit--regardless of their own contribution to the construction cost of the dam. The same holds true for highway signs or aids to navigation. Once a lighthouse is built, no ship of any nationality can be effectively excluded from the utilization of the lighthouse for navigational purposes. National defense is another example. Even a person who voted against military expenditures or did not pay any taxes will benefit from the protection afforded.It is no easy task to determine the social costs and social benefits associated with a public good. There is no practicable way of charging drivers for looking at highway signs, sailors for watching a lighthouse, and citizens for the security provided to them through national defense.Because the market does not provide the necessary signals, economic analysis has to be substituted(代替) for the impersonal judgement of the marketplace.
31. With what topic is the passage mainly concerned？
A. Mechanisms for safer navigation.
B. The economic structure of the marketplace.
C. A specific group of commodities.
D.The advantage of lowering taxes.
32. Which of the following would NOT be an example of a public good as described in the passage？
A.taxi.
B. A bridge.
C. A fire truck.
D. A stoplight.
33. Which of the following can best replace the underlined word “holds”？
A. has
B. is
C. grasps
D. carries
34. According to the passage, finding out the social costs of a public good is a ________.
A. difficult procedure
B. daily duty
C. matter of personal judgement
D. citizen’s responsibility
答案
更多“Public goods are those products from whose enjoyment nobody can be eff……”相关的问题
第1题
In what way does the author think ordinary Americans benefit from immigration？
A．They can access all kinds of public services.
B．They can get consumer goods at lower prices.
C．They can mix with people of different cultures.
D．They can avoid doing much of the manual labor.
第2题
Auctions（拍卖) are public sales of goods, conducted by an officially approved auctioneer.
Auctions(拍卖) are public sales of goods, conducted by an officially approved auctioneer. He asked the crowd to gather in the auction room to bid for various items on sale. He encourages buyers to bid higher figures and finally names the highest bidder as the buyer of the goods. This is called “knocking down” the goods, for the bidding ends when the auctioneer bangs a small hammer on a raised platform.
The ancient Romans probably invented sales by auction and the English word comes from the Latin "autic", meaning "increase". The Romans usually sold in this way the spoils taken in war; these sales were called "sub hasta", meaning "under the spear", a spear being stuck in the ground as a signal for a crowd to gather. In England in the eighteenth and nineteenth centuries goods were often sold "by the candle"; a short candle was lit by the auctioneer and bids could be made while it was burning. Practically all goods can be sold by auction. Among these are coffee, skins, wool, tea, cocoa, furs, fruit, vegetables and wines. Auction sales are also usual for land and property, antique furniture, pictures, rare books, old china and works of art. The auction rooms at Chritie's and Sotheby's in London and New York are world famous.
An auction is usually advertised beforehand with full particulars of the articles to be sold and where and when they can be viewed by the buyers. If the advertisement cannot give full details, catalogues are printed, and each group of goods to be sold together, called a "lot", is usually given a number. The auctioneer need not begin with lot one and continue the numerical order; he may wait until he notices the fact that certain buyers are in the room and then produce the lots they are likely to be interested in. The auctioneer's services are paid for in the form. of a percentage of the price the goods are sold for. The auctioneer therefore has a direct interest in pushing up the bidding.
Auctioned goods are sold（）.
A、for the highest price offered
B、at fixed prices
C、at prices lower than their true value
D、at prices offered by the auctioneer
第3题
2 Shop-lifters can be divided into three main categories: the professionals, the deliberate amateurs, and the people who just can't help themselves. The professionals do not pose much of a problem for the store detectives, who, assisted by closed circuit television, two way mirrors and various other technological devices, can usually cope with them. The professionals tend to go for high value goods in parts of the shops where security measures are tightest. And, in any case, they account for only a small percentage of the total losses due to shop-lifting.
3 The same applies to the deliberate amateur who is, so to speak, a professional in training. Most of them get caught sooner or later, and they are dealt with severely by the courts.
4 The real problem is the person who gives way to a sudden temptation and is in all other respects an honest and law-abiding citizen. Contrary to what one would expect, this kind of
shop-lifter is rarely poor. He does not steal because he needs the goods and cannot afford to pay for them. He steals because he simply cannot stop himself. And there are countless others who, because of age, sickness or plain absent-mindedness, simply forget to pay for what they take from the shops. When caught, all are liable to prosecution, and the decision whether to send for the police or not is in the hands of the store manager.
5 In order to prevent the quite incredible growth in shop-lifting offences, some stores, in fact, are doing their best to separate the thieves from the confused by prohibiting customers from taking bags into the store. However, what is most worrying about the whole problem is, perhaps, that it is yet another instance of the innocent majority being penalized and inconvenienced because of the actions of a small minority. It is the aircraft hijack situation in another form. Because of the possibility of one passenger in a million boarding an aircraft with a weapon, the other 999,999 passengers must subject themselves to searches and delays. Unless the situation in the shops improves, in ten years' time we may all have to subject ourselves to a body-search every time we go into a store to buy a tin of beans!
Why does the honest public have to pay higher prices when they go to the shops？
A．There is a "shrinkage" in market values.
B．Many goods are not available.
C．Goods in many shops lack variety.
D．There are many cases of shop-lifting.
第5题
In order to solve the pollution problems that began from the mid-20th century, a number of environmental protection organizations have formed. However, the most important pollution fighter is perhaps each individual person. If everyone makes the effort, pollution can be greatly reduced,
In a way, some pollution can be controlled in daily life. For example, solid wastes are a major cause of land pollution, but many wastes, such as empty cans, glass bottles, old car tires and newspapers, can be recycled. Some places pay people to bring in used goods for recycling. Moreover, one major factor in air pollution is that many people use cars needlessly. So public transportation, bicycles, and walking are all good choices to prevent pollution.
请帮忙给出正确答案和分析，谢谢！
第6题
Total consumption in real terms rose by close on 11% during 1964, and per capital personal consumption by under 7%, as in 1963. The undesirable trend towards a rapid rise in consumption, evident in previous years, remained unaltered. Since at current prices consumption rose by 16% and disposable income by 13%, there was evidently a fall in the rate of saving in the private sector of the economy. Once again consumption patterns indicated a swift advance in the standard of living. Expenditure on food declined in significance, although consumption of fruit increased. Spending on furniture and household equipment, health, education and recreation continued to increase. The greatest proof of altered living standards was the rapid expansion of expenditure on transport (including private cars) and personal services of all kinds, which occurred during 1964. The progressive wealth of large sectors of the public was demonstrated by the changing composition of durable goods purchased. Saturation(饱和) point was rapidly being approached for items such as the first household radio, gas cookers, and electric refrigerators, whereas increasing purchases of automobiles and television sets Were registered.
The author thinks that the trend towards a rapid rise in consumption was "undesirable" because______.
A．people saved less
B．people were wealthy
C．people consumed less
D．expenditures on luxuries in creased
请帮忙给出正确答案和分析，谢谢！
第7题
A、Translation is a ascience,an art,a skila craft,an operation or a kind of communication.
B、If it refers to some specific pieces of translation,then it is more like an art,with each piece manifesting its own charms and style in the creative hands of the translator.
C、If "translation"refers to a subject,namely,the study of translation theory and kills,it is no doubt a ascience with its own rules,aws and priciples for the translators to abide by.
D、If it refers to a processthen we may
第8题
The growing interest of consumers in the safety and nutritional quality of the typical North American diet is a welcome development. However, much of this interest has been sparked by sweeping claims that the food supply is unsafe or inadequate in meeting nutritional needs. Although most of these claims are not supported by scientific evidence, the greater number of written material advancing such claims make it difficult for the general public to sep arate fact from fiction. As a result, claims that eating a diet consisting entirely of organically grown foods prevents or cures disease or provides other benefits to health have become widely publicized and form. the basis for folklore.
Almost daily the public is surrounded by claims for "no-aging" diets, new vitamins, and other wonder foods. There are numerous unsubstantiated reports that natural vitamins are superior to synthetic ones, that crops grown with organic fertilizers are nutritionally superior to chose with chemical fertilizers, that untreated grains are better than fumigated grains, and the like.
One thing that most organically grown food products seem to have in common is that they cost more than conventionally grown foods. But in many cases consumers are misled if they believe organic foods can maintain health and provide better nutritional quality than conventionally grown foods. So there is real cause for concern ff consumers, particularly those with limited incomes, distrust the regular food supply and buy only expensive organic foods instead.
The author implies that there is cause for concern if consumers with limit ed incomes buy organic foods instead of conventionally grown foods be cause ______ .
A．organic goods can be more expensive but are often no better than conventionally grown foods
B．many organic foods are actually less nutritious than similar conventionally grown foods
C．conventionally grown foods are more readily available than organic foods
D．too many farmers will stop using conventional methods to grow food crops
第9题
There can be no doubt that the growth in advertisement is one of the most striking features of the western world in this century. Many businesses such as those handling frozen foods, liquor, tobacco and medicines have been built up largely by advertisement.
We might ask whether the cost of advertisement is paid for by the producer or by the customer. (19) Since advertisement forms part of the cost of production, which has to be covered by the selling price, it is clear that it is the customer who pays for advertisement. However, if large scale advertisement leads to increased demand, production costs are reduced, and the customer pays less.
It is difficult to measure exactly the influence of advertisement on sales. When the market is growing, advertisement helps to increase demand. When the market is shrinking, advertisement may prevent a bigger fall in sales than would occur without its support. What is clear is that businesses would not pay large sums for advertisement if they were not convinced of its value to them.
Advertisement is often used to______.
A．deceive customers
B．increase production
C．arouse suspicion
D．push the sale
请帮忙给出正确答案和分析，谢谢！
第10题
There can be no doubt that the growth in advertisement is one of the most striking features of the western world in this century. Many businesses such as those handling frozen foods, liquor, tobacco and medicines have been built up largely by advertisement.
We might ask whether the cost of advertisement is paid by the producer or by the customer. Since advertisement forms part of the cost of production, which has to be covered by the selling price, it is clear that it is the customer who pays for advertisement. However, if large scale advertisement leads to increased demand, production costs are reduced, and the customer pays less.
It is difficult to measure exactly the influence of advertisement on sales. When the market is growing, advertisement helps to increase demand. When the market is shrinking, advertisement may prevent a bigger fall in sales than would occur without its support. What is clear is that businesses would not pay large sums for advertisement if they were not convinced of its value to them.
Advertisement is often used to ______.
A．deceive customers
B．increase production
C．arouse suspicion
D．push the sale
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