题目内容
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： You may not realize that fog is simply a cloud that touches the ground. Like any cloud, it is composed of tiny droplets of water, or, in rare cases, of icy crystals that form. an ice fog. lce fogs usually occur only in extremely cold climates, because water droplets are so tiny they don't solidify until the air temperature is far below freezing, generally thirty degrees below zero Celsius or lower. These droplets are nearly spherical. The transparency of fog depends mainly on the concentration of droplets. The more droplets, the denser the fog is. Since water is eight hundred times denser than air, investigators were puzzled for a long time as to why the water particles in fog didn't simply fall to the ground, making the fog disappear. It turns out that droplets do fall at a predictable rate but in fog-creating conditions, they are either supported by rising air currents or continually replaced by new droplets condensing from water vapor in the air.
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听力原文：M: What's happening with the new library building？
W: The work crew's just finishing it up.
Q: What does the woman say about the library？
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Most of the trees felled illegally in Amazonia is sold to the construction industry in Brazil's richer southern states.
听力原文：W: I'm ready to leave now. Will you bring down my suitcase？
M: Sure. It certainly is heavy. Are you carrying rocks in it？
Q: What did the woman want？
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Economists are only now realizing the full extent to which the communications revolution has affected the world economy. Information technology allows the extension of trade across geographical and industrial boundaries, and transnational corporations take full advantage of it. Terms of trade, exchange and interest rates and money movements are more important that the production of goods. The electronic economy made possible by information technology allows the haves to increase their control on global markets—with destructive impact on the have-nots.
For them the result is instability. Developing countries which rely on the production of a small range of goods for export are made to feel like small parts in the international economic machine. As "futures" are traded on computer screens, developing countries simply have less and less control of their destinies.
So what are the options for regaining control？ One alternative is for developing countries to buy in the latest computers and telecommunications themselves—so-called "development communications" modernization. Yet this leads to long-term dependency and perhaps permanent constraints on developing countries' economies.
Communications technology is generally exported from the U. S., Europe or Japan; the patents, skills and ability to manufacture remain in the hands of a few industrialized countries. It is also expensive, and imported products and services must therefore be bought on credit—credit usually provided by the very countries whose companies stand to gain.
Furthermore, when new technology is introduced there is often too low a level of expertise to exploit it for native development. This means that while local elites, foreign communities and subsidiaries of transnational corporations may benefit, those whose lives depend on access to the information are denied it.
From the passage we know that the development of high technology is in the interests of ______.
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