题目内容

What is one reason astronomers make long-time exposures？

A. To spend less time at their telescopes.
B. To overcome the problem of weak light.
C. To take more photographs.
D. To photograph astronomical objects without using a telescope.

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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？

A. He was a murderer.
B. He was a spy.
C. He was expected as a terrorist.
D. He was taken for a robber.

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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？

A. They spend most of their time looking through telescopes.
B. They are constantly analyzing data.
C. They often live near observatories.
D. They devote a lot of time to theoretical problems.

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What did the man's mother most desire to do at the present？

A. To kill the man Who had shot his son.
B. To tell the media the truth.
C. To return home with the dead body.
D. To redress an injustice.

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How does the new plan benefit the students who eat all their meals at the school cafeteria？

A. They can invite guests to meals at a reduced price.
B. They receive cards that allow them to be served first.
C. They can help decide what will be on the menu.
D. They pay less per meal than those who eat there only part of the time.

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What is one reason astronomers make long-time exposures？

A. To spend less time at their telescopes. B. To overcome the problem of weak light. C. To take more photographs. D. To photograph astronomical objects without using a telescope.

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？

A. To spend less time at their telescopes.
B. To overcome the problem of weak light.
C. To take more photographs.
D. To photograph astronomical objects without using a telescope.