Prices determine how resources are to be used. The...

第1题

Prices determine how resources are to be used. They are also the means by which products and services that are in limited supply are disturbed among buyers. The price system of the United States is a very complex network composed of the price of all the products brought and sold in the economy as well as those of numerous services, including labor, professional transportation, and public-utility services.

The interrelationships of all these prices make up the “system” of prices. The prices of any particular product or service are linked to a broad, complicated system of prices in which everything seems to depend more or less on everything else. If one were to ask randomly (随机地) a group of individuals to define “price”, many would reply that price is an amount of money paid by the buyer to the seller of a product or service as agreed upon in a market transaction (交易). This definition is, of course, valid as far as it goes.

For a complete understanding of a price in any particular transaction, much more than the amount of money involved must be known. Both the buyer and the seller should be familiar with not only the money amount, but with the amount and quality of the product or service to be exchanged, the time and place at which the exchange will take place and the payment will be made, the form. of money to be used, and the credit terms and discounts that supply to the transaction, guarantees on the product or service, delivery terms, return privileges, and other factors that comprise the total “package”being exchanged for the asked-for amount in order that they may evaluate a given price.

According to the passage, the price system is related primarily to ______.

A.labor and education

B.transportation and insurance

C.utilities and repairs

D.products and services

According to the passage, which of the following is NOT a factor in the complete understanding of price？A.Instructions that come with a product

B.The quantity of a product

C.The quality of a product

D.Guarantees that come with a product

In the last sentence of the passage, the word “they” refers to ________.A.return privileges

B.all the factors

C.the buyer and the seller

D.money

The paragraph following the passage likely discusses ________.A.unusual ways to advertise products

B.types of payment plans for service

C.theories about how products affect different levels of society

D.how certain elements of price “package” influence its market value

What is the best title for the passage？A.The Inherent Weakness in the Price System

B.The Complexities of the Price System

C.Credit Terms in Transactions

D.Resource Distribution and the Public Sector

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第2题

Prices determine how resources are to be used. They are also the means by which products and services that are in limited supply are rationed among buyers. The price system of the United States is a very complex network composed of the prices of all the products bought and sold in the economy as well as those of a myriad of services, including labor, professional, transportation, and public-utility services. The interrelationships of all these prices make up the "system" of prices. The price of any particular product or service is linked to a broad, complicated system of prices in which everything seems to depend more or less upon everything else.

If one were to ask a group of randomly selected individuals to define "price", many would reply that price is an amount of money paid by the buyer to the seller of a product or service or, in other words, that price is the money value of a product or service as agreed upon in a market transaction. This definition is, of course, valid as far as it goes. For a complete understanding of a price in any particular transaction, much more than the amount of money involved must be known. Both the buyer anti the seller should be familiar with not only the money amount, but with the amount and quality of the product or service to be exchanged, the time and place at which the exchange will take place and payment will be made, the form. of money to be used, the credit terms and discounts that apply to the transaction, guarantees on the product or service, delivery terms, return privileges, and other factors. In other words, both buyer and seller should be fully aware of all the factors that comprise the total "package" being exchanged for the asked-for amount of money in order that they may evaluate a given price.

What is the best title for the passage?

A．The Inherent Weaknesses of the Price System

B．The Complexities of the Price System

C．Credit Terms in Transactions

D．Resource Allocation and the Public Sector

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第3题

Despite Denmark's manifest virtues, Danes never talk about how proud they are to be Danes. This would sound weird in Danish. When Danes talk to foreigners about Denmark, They always begin by commenting on its tininess, its unimportance, the difficulty of its language, the general small-mindedness and self-indulgence of their countrymen and the high taxes. No Dane would look you in tire eye and say, "Denmark is a great country." You're supposed to figure this out for yourself.

It is the land of the silk safety net, where almost half the national budget goes toward smoothing out life's inequalities, and there is plenty of money for schools, day care, retraining programs, job seminars-Danes love seminars: Three days at a study center hearing about waste management is almost as good as a ski trip. It is a culture bombarded by English, in advertising, pop music, the Internet, and despite all the English that Danish absorbs-there is no Danish Academy to defend against it-old dialects persist in Jutland that can barely be understood by Copenhageners. It is the land where, as the saying goes, "Few have too much and fewer have too little," and a foreigner is struck by the sweet egalitarianism that prevails, where the lowliest clerk gives you a level gaze, where Sir and Madame have disappeared from common usage, even Mr. and Mrs. It's a nation of recyclers——about 55% of Danish garbage gets made into something new-and no nuclear power plants. It's a nation of tireless planners. Trains run on time. Things operate well in general.

Such a nation of over-achievers-a brochure from the Ministry of Business and Industry says, "Denmark is one of the world's cleanest and most organized countries, with virtually no pollution, crime, or poverty. Denmark is the most corruption-free society in the Northern hemisphere." So, of course, one's heart lifts at any sighting of Danish sleaze: skinhead graffiti on buildings ("Foreigners Out of Denmark!"), broken beer bottles in the gutters, drunken teenagers slumped in the park.

Nonetheless, it is an orderly land. You drive through a Danish town, it comes to an end at a stone wall, and on the other side is a field of barley, a nice clean line: town here, country there. It is not a nation of jaywalkers. People stand on the curb and wait for the red light to change, even if it's 2 a.m. and there's not a car in sight. However, Danes don't think of themselves as a waiting-at-2-a, m.-for-the-green-light people——that's how they see Swedes and Germans. Danes see themselves as jazzy people, improvisers, more free spirited than Swedes, but the troth is (though one should not say it) that Danes are very much like Germans and Swedes. Orderliness is a main selling point. Denmark has few natural resources, limited manufacturing capability; its future in Europe will be as a broker, banker, and distributor of goods. You send your goods by container ship to Copenhagen, and these bright, young, English-speaking, utterly honest, highly disciplined people will get your goods around to Scandinavia, the Baltic States, and Russia. Airports, seaports, highways, and rail lines are ultramodern and well-maintained.

The orderliness of the society doesn't mean that Danish lives are less messy or lonely than yours or mine, and no Dane would tell you so. You can hear plenty about bitter family feuds and the sorrows of alcoholism and about perfectly sensible people who went off one day and killed themselves. An orderly society cannot exempt its members from the hazards of life.

But there is a sense of entitlement and security that Danes grow up with. Certain things are yours by virtue of citizenship, and you shouldn't feel bad for taking what you're entitled to, you're as good as anyone else. The rules of the welfare system are clear to everyone, the benefits you get if you lose your job, the steps you take to get a new one; and the orderliness of the system makes it possible for the countr

A．boastful

B．modest

C．deprecating

D．mysterious

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第4题

The need for solar electricity is clear. It is safe, ecologically sound, efficient, continuously available, and it has no moving parts. The basic problem with the use of solar photo-voltaic devices is economic, but until recently very little progress has been made toward the development of low-cost photo-voltaic devices. The larger part of the research funding has been devoted to study of single-crystal silicon solar cells, despite the evidence, including that of the leading manufacturers of crystalline silicon, that the technique holds little promise. The reason for this pattern is understandable and historical. Crystalline silicon is the active element in the very successful semiconductor industry, and virtually all of the solid state devices contain silicon transistors and diodes. Crystalline silicon, however, is particularly unsuitable to terrestrial solar cells.

Crystalline silicon solar cells work well and are successfully used in the space program, where cost is not an issue. While single-crystal silicon had been proven in extraterrestrial use with efficiencies as high as 18 per- cent, and other more expensive and scarce materials such as gallium arsenide can have even higher efficiencies, costs must be reduced by a factor of more than 100 to make them practical for commercial use. Besides the fact that the starting crystalline silicon is expensive, 95 percent of it is wasted and does not appear in the final de- vice. Recently, there have been some imaginative attempts to make polycrystalline and ribbon silicon, which are lower in cost than high-quality single-crystals; but to date the efficiencies of these apparently lower-cost arrays have been unacceptably small. Moreover, these materials are cheaper only because of the introduction of disordering in crystalline semiconductors, and disorder degrades the efficiencies of crystalline solar cells.

This dilemma can be avoided by preparing completely disordered or amorphous materials. Amorphous materials have disordered atomic structure as compared to crystalline materials: that is, they have only short-range order rather than the long-range periodicity of crystals. The advantages of amorphous solar cells are impressive. Whereas crystals can be grown as wafers about four inches in diameter, amorphous materials can be grown over large areas in a single process. Whereas crystalline silicon must be made 200 micron of the proper amorphous materials in necessary. Crystalline silicon solar cells cost in excess of $ 100 per square foot, but amorphous films can be created at a cost of about 50 cents per square foot.

Although many scientists were aware of the very low cost of amorphous solar cells, they felt that they could never be manufactured with the efficiencies necessary to contribute significantly to the demand for electric power. This was based on a misconception about the feature which determines efficiency. For example, it is not the conductivity of the material in the dark which is relevant, but only the photo-conductivity, that is, the conductivity in the presence of sunlight.

Already, solar cells with efficiencies well above 6 percent have been developed using amorphous materials, and further research will doubtlessly find even less costly amorphous materials with higher efficiencies.

The author is primarily concerned with ______.

A．discussing the importance of solar energy

B．presenting a history of research on energy sources

C．describing a possible solution to the problem of the cost of photo-voltaic cells

D．advocating increased government funding for research on alternative energy source

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第5题

How is communication actually achieved.'？ It depends, of course, either on a common language or on known conventions, or at least on the beginnings of these. If the common language and the convention exist, the contributor, for example, the creative artist, the performer, or the reporter, tries to use them as well as he can. But often, especially with original artists and thinkers, the problem is in one way that of creating a language, or creating a convention, or at least, of developing the language and convention to the point where they are capable of bearing his precise meaning. In literature, in music, in the visual arts, in the sciences, in social thinking, in philosophy, this kind of development has occurred again and again. It often takes a long time to get through, and for many people it will remain difficult. But we need never think that it is impossible~ creative energy is much more powerful than we sometimes suppose. While a man is engaged in this struggle to say new things in new ways, he is usually more than ever concentrated on the actual work, and not on its possible audience. Many artists and scientists share this fundamental unconcern about the ways in which their work will be received. They may be glad if it is understood and appreciated, hurt if it is not, but while the work is being done there can be no argument. The thing has to come out as the man himself sees it.

In this sense it is true that it is the duty of society to create conditions in which such men can live. For whatever the value of any individual contribution, the general body of work is of immense value to everyone. But of course things are not so formal, in reality. There is not society on the one hand and these individuals on the other. In ordinary living, and in his work, the contributor shares in the life of his society, which often affects him both in minor ways and in ways sometimes so deep that he is not even aware of them. His ability to make his work public depends on the actual communication system: the language itself, or certain visual or musical or scientific conventions, and the institutions through which the conmunication will be passed. The effect of these on his actual work can be almost infinitely variable. For it is not only a communication system outside him; it is also, however original he may be, a communication system which is in fact part of himself. Many contributors make active use of this kind of internal communication system. It is to themselves, in a way, that they first show their conceptions, play their music and present their arguments. Not only as a way of getting these clear, in the process of almost endless testing that active composition involves. But also, whether consciously or not, as a way of putting the experience into a communicable form. If one mind has grasped it, then it may be open to other minds.

In this deep sense, the society is in some ways already present in the act of composition. This is always very difficult to understand, but often, when we have the advantage of looking back at a period, we can see, even if we cannot explain, how this was so. We can see how much even highly original individuals had in common, in their actual work, and in what is called their "structure of feeling", with other individual workers of the time, and with the society of that time to which they belonged. The historian is also continually struck by the fact that men of this kind felt isolated at the very time when in reality they were beginning to get through. This can also be noticed in our own time, when some of the most deeply influential men feel isolated and even rejected. The' society and the communication are there, but it is difficult to recognize them, difficult to be sure.

Creative artists and thinkers achieve communication by ______.

A．depending on shared conventions

B．fashioning their own conventions

C．adjusting their personal feelings

D．elaborating a common language

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第6题

In 1974,_________resigned as a consequence of the Watergate Scandal.

A．Kennedy

B．Nixon

C．Truman

D．Roosevelt

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第7题

Harlem, which was _________ by origin, is located in_________.

A．Spanish... New York

B．Dutch... New York

C．Dutch... Chicago

D．Spanish... Chicago

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第8题

As a consequence of the Norman Conquest, many of today's English expressions have a(n)_________origin.

A．German

B．Danish

C．Italian

D．French

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