题目内容
Why does the author say reducing the amount of meat in one's diet is environmentally beneficial？
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听力原文： Although I think the United States generally has an excellent system of transportation, I do not think that it does a good job of transporting people between cities that are only a few hundred miles apart. A person commuting between Detroit and Chicago, or between San Francisco and Los Angeles may spend only a relatively short time in the air, while spending several hours getting to and from the airport. This situation makes flying almost as time-consuming as driving. Moreover, airplanes use a lot of their fuel just getting into the air. They simply are not fu- el effective on short trips.
High speed trains may be an answer. One fairly new proposal for such trains is for some- thing called a Maglev, meaning a magnetically levitated train. Maglev will not actually ride on the tracks, but will fly above tracks that are magnetically activated. This will save wear and tear on the tracks. These trains will be able to go faster than 150 miles per hour. At this speed, conventional trains have trouble staying on the tracks.
As you can see, Maglev offers exciting possibilities for the future.
What is the main topic of the talk？
When are airplanes not fuel effective？
How does a Maglev operate？
PART C
Directions: You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE.
听力原文： People in Poland take their pleasure seriously. They like to have an aim even when spending the time which is entirely their own. During the summer, people start work very early in the morning so that they can finish early and enjoy a leisurely afternoon. It is difficult to imagine Polish people going aimlessly for a walk in the country, though they might go to pick wild fruit, to visit a place of historical importance or to walk 20 KM as a training exercise. They are often admired for their enjoyment of the arts. All parks are beautifully cared for and are for the use and enjoyment of the people. Quite ordinary people will talk with obvious delight about concerts. There is nearly always a crowd at the door of a theatre, asking for returned tickets. People in Poland now have far more leisure time and more money than ever before. It is there fore possible to spend the weekends in many new ways. Many people now have over 20 days holiday a year. This provides an opportunity for them to spend holidays in the country or at the seaside.
What is special about the Polish way of spending leisure time？
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