In general (一般来说), people talk about two groups of colors: warm colors and cool colors. Scientists
think that there are also two groups of people: people who prefer warm colors and people who prefer cool
colors.
    The warm colors are red, orange, and yellow. Where there are warm colors and a lot of light, people
usually want to be active. People think that red, for example, is exciting. Sociable (善交际的) people, those
who like to be with others, like red. The cool colors are green, blue, and violet. These colors, unlike warm
colors, are relaxing. Where there are cool colors, people are usually quiet. People who like to spend time
alone often prefer blue.
    Red may be exciting, but one scientist says that time seems to pass more slowly in a room with warm
colors than in a room with cool colors. He suggests that a warm color, such as red or orange, is a good
color for a living room or restaurant. People who are relaxing or eating do not want time to pass quickly.
Cool colors are better for offices or factories if the people who are working there want time to pass
quickly.
    Scientists do not know why people think some colors are warm and other colors are cool. However,
almost everyone agrees that red, orange, and yellow are warm and that green, blue, and violet are cool.
Perhaps warm colors remind people of warm days and the cool colors remind them of cool days. Because
in the north the sun is low during winter, the sunlight appears quite blue. Because the sun is higher during
summer, the hot summer sunlight appears yellow.

1. When people talk about two groups of people, they mean those who  ______.

A. are green, blue and purple
B. are yellow, red and yellow
C. are warm colours and cool colours
D. like warm colours and those who like cool colours

2. The people who like warm colours ______.

A. are very hard to get on with others
B. like to stay at home by themselves
C. are very easy to get on with others
D. don't like to be with others

3. Which of the following is NOT true?

A. Maybe warm colours make people think of warm days.
B. The persons who are relaxing don't want time to pass slowly.
C. The writer thinks cool colours are good for officers or factories.
D. Time seems to pass more slowly in a room with warm colours than in a room with cool colours.

4. Why do some people like warm colours and others like cool colours?

A. Scientists haven't found out yet.
B. Because people who like warm colours are active.
C. Because warm colours are nicer than cool colours.
D. Because people who like cool colours prefer staying at home alone.

5. Which of the following is the best title for the passage?

A. Two groups of colours
B. Cool colours
C. Warm colours
D. Colours and people