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According to the speaker what do people often think about astronomers
According to the speaker what do people often think about astronomers
admin
2013-10-11
79
问题
According to the speaker what do people often think about astronomers
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/ her time analyzing data and may only be at the telescope 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 view 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 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 that are hundreds of times too faint to be seen by just looking through a telescope can be photographed.
选项
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.
答案
A
解析
语义理解题。短文的开篇就提到,“Most people think of astronomers as people who spend their time in cold observatories peering through telescopes every night.”可知选项A为正确答案。选项B和选项D是天文学家实际的工作状态,而不是人们所想象的。
转载请注明原文地址:https://kaotiyun.com/show/pdLK777K
0
专业英语四级
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