（1）Which color is often used in flags？
A.Blue.
B.Red.
C.Green.
（2）Why does the speaker mention the United Nations' flag？
A.To show how important the United Nations is.
B.To show which color means peace.
C.To show how many colors are on it.
（3）What is the speaker mainly talking about？
A.A research on different colors.
B.The colors often used in national flags.
C.The difference between different national flags.

【考点】听长对话．

【答案】BBA Text 10 W：Different colors mean different things to different people.Red is an exciting color.It creates an idea of action，energy，and danger. ⑱Red is also the most frequently used color in flags — 80% of the world's flags contain red.A study in Germany showed that football teams wearing red are more successful.Blue is a very calm color.Businessmen usually wear dark blue suits. ⑲Blue is also a peaceful color.The flag of the United Nations is light blue.Yellow means freedom and green is a very relaxing color.Some doctors wear green these days，because it is less tiring than white.Black can also be seen as a very dangerous color，and people are usually not into it.But white is a pure and strong color.This is one reason why most doctors wear white coats：we trust them more.People wearing gray do not want others to notice them.Brown is the opposite of black.It is a warm and friendly color.