英语专四 短文听力 Passage 2-2

 短文

Questions 14 to 17 are based on the following passage,

(14) Most people think of astronomers² as people who spend their time in cold observatories³ peering through telescopes every night. In fact, a typical astronomer¹ spends most of his/her time analyzing⁴ data and may only be at the telescope for a few weeks of the year. Some astronomers work on purely⁵ 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. (16) The plate is positioned so that the image received by the telescope is recorded on it. (15) Then the image can be developed, enlarged and published so that many people can study it. Because most astronomical⁶ objects are very remote, the light we receive from them is rather feeble. But by using a telescope as a camera, (17) long time exposures can be made. In this way，objects that are a hundred times too faint to be seen can be photographed by just looking through a telescope.

 

题目

Passage 2

Questions 14 to 17 are based on the following passage. At the end of the passage? you will be given 20 seconds to answer the questions.

Now, listen to the passage.

14. According to the passage, 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.

15. What is the advantage of photographing the skies?

A. The cost of equipment needed is reduced.

B. Fewer data need to be analyzed⁷.

C. The images can be studied by different astronomers.

D. The natural colors of astronomical objects can be captured.

16. What do astronomers use photographic plate for?

A. Decreasing the time it takes to photograph objects.

B. Avoiding using a telescope.

C. Sharpening the color of what they observe.

D. Obtaining images of distant objects.

17. What is the 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.

 

答案解析

Passage 2

14. A细节题。原文说“大部分人都认为天文学家就是每个晚上都在冰冷的天文台用 望远镜观察天空的人”。故A项符合题意。

15. C细节题。文章指出通过对天空拍照，照片可以被冲洗出来，并被放大和发表，这 样就可以有很多人来参与研究。故选C项。

16. D细节归纳题。文中说照相平盘可以记录下由望远镜捕捉到的物体，然后把其拍成 照片，故D项意思正确。

17. B细节题。文章后面讲到由于大部分天体距离很远，所以我们能捕捉到的它们所 发出的光线也很微弱，但如果用望远镜充当照相机就可以进行长时间曝光，以此将 物体拍下来。故B项正确。

1 astronomer   

n.天文学家

参考例句：

• A new star attracted the notice of the astronomer.新发现的一颗星引起了那位天文学家的注意。
• He is reputed to have been a good astronomer.他以一个优秀的天文学者闻名于世。

2 astronomers   

n.天文学者，天文学家( astronomer的名词复数 )

参考例句：

• Astronomers can accurately foretell the date,time,and length of future eclipses. 天文学家能精确地预告未来日食月食的日期、时刻和时长。 来自《简明英汉词典》
• Astronomers used to ask why only Saturn has rings. 天文学家们过去一直感到奇怪，为什么只有土星有光环。 来自《简明英汉词典》

3 observatories   

n.天文台，气象台( observatory的名词复数 )

参考例句：

• John Heilbron, The Sun in the Church: Cathedrals as Solar Observatories, 3-23. 约翰．海耳布隆，《教会里的太阳：教堂即太阳观测台》，第3-23页。 来自互联网
• Meteorologists use satellites, land observatories and historical data to provide information about the weather. 气象学家使用卫星、上天文台和历史资料来提供有关天气的信息。 来自互联网

4 analyzing   

v.分析；分析( analyze的现在分词 )；分解；解释；对…进行心理分析n.分析

参考例句：

• Analyzing the date of some socialist countries presents even greater problem s. 分析某些社会主义国家的统计数据，暴露出的问题甚至更大。 来自辞典例句
• He undoubtedly was not far off the mark in analyzing its predictions. 当然，他对其预测所作的分析倒也八九不离十。 来自辞典例句

5 purely   

adv.纯粹地，完全地

参考例句：

• I helped him purely and simply out of friendship.我帮他纯粹是出于友情。
• This disproves the theory that children are purely imitative.这证明认为儿童只会单纯地模仿的理论是站不住脚的。

6 astronomical   

adj.天文学的，（数字）极大的

参考例句：

• He was an expert on ancient Chinese astronomical literature.他是研究中国古代天文学文献的专家。
• Houses in the village are selling for astronomical prices.乡村的房价正在飙升。

7 analyzed   

v.分析( analyze的过去式和过去分词 )；分解；解释；对…进行心理分析

参考例句：

• The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
• The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。 来自《简明英汉词典》