色彩是视觉的语言。它传递信息,表达情感,寓意深远。善于“倾听”这一无声的语言,便能懂得许多科学知识。柏油马路上醒目的白线告诉人们——车辆行人要各行其道;高悬的交通信号灯时刻提醒人们——红灯停,绿灯行,黄灯请稍等;而飞旋的红棚灯蓝棚灯,则亮出了警车的威风和救护车的人道,告诉人们请让它们优先通行;万里长江航道两侧,红灯表示南岸,绿灯表示北岸,红绿之间是安全航道…… Color is the language of vision. It delivers information, express emotion, meaning far-reaching. Good at “listening” in this silent language, we can understand a lot of scientific knowledge. The white lines on the tarmac tell the people that pedestrian traffic should be on their own. The traffic lights hanging from the sky remind people that the red light stops, the green light and the yellow light please wait for a while. , Then showed the prestige of the police car and ambulance humane, tell people please give priority to them; both sides of the Yangtze River waterway, the red light indicates the south bank, the green light means the north shore, between red and green is a safe channel ......