题目内容
听力原文： Brazilian officials arrive in London today to meet a team investigating the shooting of a Brazilian man police mistakenly thought was a suicide bomber. The Brazilian government wants to get a clear picture of the events leading up to the shooting of Jean Charles de Menezes, and to find out if media reports about the investigation based on a leak are accurate. The mother of Mr. de Menezes, Maria, says the policeman who killed him should be punished. Tom Gibb reports from Brazil:
Maria de Menezes said her only desire now was to see justice done. She said she didn't want to see any other mother suffer as she has. The family say they are glad that documents and pictures of Jean Charles de Menezes after he'd been shot which contradict the original police version have been made public. They say they knew from the start that he had no reason to run from the police and world never have jumped over a barrier of an underground station.
According to the news, why was the Brazilian man killed？
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听力原文： Most people think of astronomers as people who spend their time in cold observatories peering through telescopes every night. In fact, a typical astronomer spends most of his or her time analyzing data and may only be at the telescope for a few weeks of the year. Some astronomers work on purely theoretical problems and never use a telescope at all.
You might not know how rarely images are viewed directly through telescopes. The most common way to observe the skies is to photograph them. The process is very simple. First a photographic plate is coated with a light-sensitive material. The plate is positioned so that the image received by the telescope is recorded on it. Then the image can be developed, enlarged and published so that many people can study it.
Because most astronomical objects are very remote, the light we receive from them is rather feeble. But by using a telescope as a camera long-time exposures can be made.
In this way, objects can be photographed that are a hundred times too faint to be seen by just looking through a telescope.
According to the speaker, what do people often think about astronomers？
What did the man's mother most desire to do at the present？
How does the new plan benefit the students who eat all their meals at the school cafeteria？
听力原文： What was the most popular mix about the United States in the 19th Century was that of the free and simple life of the farmer. It was said that the farmers worked hard on their own land to produce whatever their families' needed. They might sometimes trade with their neighbors, but in general they could get along just fine by relying on themselves, not On commercial ties with others. This is how Thomas Jefferson idealized the farmers at the beginning of the 19th century. And at that time, this may have been close to the truth especially on the frontier. But by the mid century sweeping changes in agriculture were well under way as farmers began to specialized in the raising of crops such as cotton or corn or wheat. By late in the century revolutionary invents in farm machinery has vastly increased the production of specialized crops and extensive network of railroads had linked farmers throughout the country to market in the east and even overseas. By raising and selling specialized crops, farmers could afford more and finer goods and achieved much higher standard of living but at a price. Now farmers were no longer dependent just on the weather and their own efforts, their lives were increasing controlled by the banks, which had powder to grant or deny loans for new machinery, and by the railroads which set the rates for shipping their crops to the market. As businessmen, farmers now had to worry about national economic depression and the implement of world supply and demand on for example, the of price of wheat in hands. And so by the end of the 19th century, the era of Jefferson's independent farmer had come to a close.
What is the main topic of the talk？
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