Question

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.hich 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.

Answer

1.C

2.B

3.B

【解析】

试题分析：这篇文章主要讲了，科学家和艺术家使用的颜色系统是完全不同。颜色的混合在科学和艺术方面是不同的。

1.细节理解题。根据第一段，The colour systems（系统）used by scientists and artists are completely different。可知选C。

2.细节理解题。通读全文可知文中提到了3中颜色系统：科学界；艺术节和印刷行业。可知应选B。

3.细节理解题。通读文章ARed, green and blue are used in television set和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.是正确的，只有B是不正确的根据文中Red, green and blue mix to create white (light).可知，故选B

考点：科技类短文阅读。