题目内容
A．It has become a clumsy giant.B．The city has suffered from long-time famine.C．There w
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Tornadoes, whirlwinds, and watersprouts are rotating funnel cloud air masses of small diameter. They are differentiated by the intensity of their rotation and by the surfaces that they traverse. Though tornadoes and whirlwinds both travel over land masses, whirlwinds are atmospheric systems smaller than tornadoes. Watersprouts are tornadoes that form. or pass over a water surface. A tornado is a powerful vortex or "twister" whose rotational speeds are estimated to be near 300 miles per hour. The first visible indication of tornado development is usually a funnel cloud. As this funnel dips earthward, it becomes darker because of the debris that is forced into its intensifying vortex. Some tornadoes give no visible warning Until their destruction strikes the unsuspecting victim. Tornadoes often occur in groups, and several twisters sometimes descend from the same cloud base. The forward speed of a tornado is normally 30 to 40 miles per hour. In the short time that it takes to pass, a tornado can cause fantastic destruction. There have been cases reported in which blades of straw were embeded in fence posts.
How are tornadoes distinguished from whirlwinds？
Section B
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, B, C and D. You should decide on the best choice.
There are various ways in which individual economic units can interact with one another. Three basic ways may be described as the market system, the administered system and the traditional system.
In a market system individual economic units are free to interact among each other in the market place. It is possible to buy commodities from other economic units or sell commodities to them. In a market, transactions may take place via barter or money exchange. In a barter economy, real goods such as automobiles, shoes, and pizzas are traded against each other. Obviously, finding somebody who wants to trade my old car in exchange for a sailboat may not always be an easy task. Hence, the introduction of money as a medium of exchange eases transactions considerably. In the modem market economy, goods and services are bought or sold for money.
An alternative to the market system is administrative control by some agency over all transactions. This agency will issue edicts or commands as to how much of each good and service should be produced, exchanged, and consumed by each economic unit. Central planning' may be one way of administering such an economy. The central plan, drawn up by the government, shows the amounts of each commodity produced by the various firms and allocated to different households for consumption. This is an example of complete planning of production, consumption, and exchange for the whole economy.
In a traditional society, production and consumption patterns are governed by tradition: parentage, religion, and custom fix every person's place within the economic system. Transactions take place on the basis of tradition, too. People belonging to a certain group or caste may have an obligation to care for other persons, provide them with food and shelter, care for their health, and provide for their education. Clearly, in a system where every decision is made on the basis of tradition alone, progress may be difficult to achieve. A stagnant society may result.
What is the main purpose of the passage？
A．From a newspaper advertisement.B．From a magazine article.C．From a television program
听力原文：M: Can you spare a moment, dear？ I want you to listen to this letter.
W: Go ahead, then.
M: Sir, my wife and I arrived home last night after a holiday arranged by your firm, in Jersey. We stayed at the hotel described in your brochure as a comfortable, medium -sized hotel, with a magnificent view of the sea, offering courteous, old - fashioned service and excellent food, served in a relaxed friendly atmosphere.
W: Yes, that's what the brochure said.
M: In fact the hotel is situated at least half a mile from the sea. Our room overlooked a car park...
W: Through the gates of which motor vehicles were constantly arriving or departing.
M: Yes, that's good. The food was strictly beef burgers and chips or fish and chips. Wine was available, but at exorbitant prices, and as for the courteous, old - fashioned service, the majority of the staff were foreign and virtually incapable of speaking or understanding the English language.
W: Yes, that's quite true.
M: In addition to this, we were most unhappy with the arrangements for our journey home. We were instructed to catch the 11:00 a.m. ferry...
W: Wasn't it 12:00？
M: No, 11: 00 ... but this was apparently delayed and we did not get away till 6 o'clock in the evening. Now that our holiday is over, it seems fairly pointless writing this letter, but I should like you to know that we were most disappointed with the hotel travel arrangements and shall certainly not be booking any future holidays through Happy Tours. Yours faithfully, Herbert Wilson.
M: Yes dear, that's a very good letter.
(20)
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