"But Ijust paid 1．69 for this bottle of wine last week．How is it that the price is 2.25?"

There are at least three things going on that have caused the price of wine to rise．All haveto do with the supply and demand factors of economics．

    The first factor is that people are drinking more wine than ever before．This demand formore wine has increased wine sales in America at the rate of 15 percent a year．

    The second factor is that the supply of wine has stayed relatively the same, which meansthat the same number of bottles is produced each year．Wine producers are trying to open upnew land to grow more grapes．But in at least three wine producing areas of the world-France,Germany, and California --- new vineyards （葡萄園）will not be useable in the near future．Wines are produced in other countries, such as Italy, Spain, and Portugal, as well as Argentine,Australia, Austria, and Chile．And these wines will be seen more often on the American market．But none of these countries will be able to fill the good wines．

    The third factor is that costs of wine production are soaring．The workers who make wine are asking for more money, and the machinery needed to press the grapes is becoming more expensive．

    When the demand for something is greater than the supply, prices go up．When productioncosts, meaning the price of labor and machinery rise, the producer adds this increase to the price of the wine．For these reasons, that bottle of wine now costs 2．25 instead of 1．69．

What is the main idea of this passage?

        A．Every year people drink more wine．

        B．Countries won't be able to fill the demand for good wines．

        C．The prices of things go up when the demand for them is greater than the supply．

        D．The supply of wine will always be less than demand．

This passage is written to ．

    A．describe where wine is produced 

    B．persuade people drink more beer

        C．explain why the price of wine is rising

        D．describe why wine is a favorite drink to many Americans

The underlined word "soaring" means"   .

    A．a(chǎn)dding quickly       B．reducing fast   

    C．demanding badly D．increasing fast

But some day, all our hard work will_______; we will attend the university of our choice and go on to have a great career.?

A. turn out     B. pay off       C. work out    D. go out?

But still there is a danger that grows every year．Airliners get larger．Some airplanes can hold over 300 passengers．And the air itself becomes more and more crowded．If one giant airliner crashed into another in mid-air, 600 lives could be lost．

．Air traffic controllers tell the pilot exactly when to turn, when to climb, and when to come down．The air traffic controllers around a busy airport like London-Heathrow may handle 2500 planes a day．Not all of them actually land at the airport．Any plane that flies near the airport comes under the orders of the controllers there．

Recently such a disaster almost happened．One, with 69 passengers, had come from Toronto, and the other, with 176 passengers, from Chicago, An air traffic controller noticed on his radar screen that the two planes were too close to each other．He ordered one to turn to the right and to climb．But he made a mistake．He ordered the wrong plane to do this．Fifteen seconds later it flew directly in front of the second plane．They avoided each other by the smallest part of a second．The distance between them was less than that of a large swimming pool. .

       A． Even a small mistake on their part could cause a disaster．

       B． Two large jets were flying towards the airport．

       C． Nowadays people like traveling more by air than by car．

       D． Today, air travel is far safer than driving a car on a bus motor-way．

       E． This is an example of the danger that grows every year．

       F．  In a word, air travel is more dangerous, we should choose others．

       G． From the moment an airliner takes off to the moment it lands, every movement is watched on radar screen．

But some day, all our hard work will_______; we will attend the university of our choice and go on to have a great career.?

A. turn out     B. pay off       C. work out    D. go out?

But for the leadership of our Party and our Government, we __________ these splendid results.

A．have achieved               B．shouldn’t have achieved

C．should have achieved          D．would achieve