题文

The colour systems (系统) used by scientists and artists are completely different. An artist will mix blue and yellow paint to get a shade of green; a scientist will mix green and red light to create yellow. The printed page in a magazine is yet another system.         Scientists recognize the light primaries (原色) are red, green and blue. When mixed, red and green light rays produce yellow, blue and green produce cyan, red and blue produce magenta. Red, green and blue mix to create white (light). This colour model is used in computer monitors, television sets and theater.          Most artists recognize red, yellow and blue as the three basic primary colours. These primaries are the pure colours which can not be created by mixing any other colours.          In the print industry, cyan, magenta, yellow and black are used as the primary colours. When you mix all the colours, the result is gray.

1. __________ on the colour systems.

[     ]

A. Scientists and artists have the same idea B. Scientists agree with artists C. Scientists and artists have different ideas D. Some of their ideas are the same

2. How many colour systems are mentioned in the passage?

[     ]

A. Two. B. Three. C. Only one. D. Four.

3. If a scientist wants to get yellow, he must _________.

[     ]

A. mix blue and green B. mix blue and red C. mix red and green D. mix red, green and blue

4. Which of the following is NOT true?

[     ]

A. Red, green and blue are used in television sets. B. If scientists want to get white, they will mix red, yellow and blue together. C. Most artists think red, yellow and blue are the pure colours. D. In the print industry, if you mix all the colors, you will get gray.

题型：阅读理解  难度：偏难

答案

1-4 C  B  C  B

据专家权威分析，试题“The colour systems (系统) used by scientists and artists are..”主要考查你对  科教类阅读  等考点的理解。关于这些考点的“档案”如下：

科教类阅读

考点名称：科教类阅读

• 科普类的阅读：
  科普类的阅读理解包含介绍科学知识、社会知识的短文。阅读这类短文时，要以事实为中心进行思考，抓住事物的特征、用途、相互关系等。
  如果是介绍社会现象的文章，要掌握所谈现象的内涵。

• 答题技巧：
  1. 加强整体意识，把握文章的主要内容。在阅读的时候可给段落标上序号，并给重要的句子和
     关键词做上记号，尤其是各段中心句，为答题提供更快捷更多的信息源。
  2. 审清题干，发觉和把握试题中有效的提示性信息，确认命题的角度、阅读范围和答题方式。
  3. 定位阅读，强化对应意识。同时要注意原文利用和自我加工相结合。