Colours lived near to each other，so they were ______. Once there was an argument（争）among the colours. Each colour thought itself was the best and most important. And each colour ______ others.

Green said，"______ I am the most important. I am the symbol（象征）of ______and hope. I'm the colour of grass，trees and leaves. Without me，all animals would die. "

Yellow laughed，“I bring ______ and warmth into the world. Every time people look at a yellow sunflower，they start to smile. _____ me there would always be fun. "

Orange shouted，“I am the colour of health and power. I have the most important vitamins（维生素）. _____ of carrots，vegetables and oranges. When I ______ in the sky，everyone is surprised with my beauty and nobody gives another thought to any of you. "

_______could no longer stand it，“I am the colour of danger and bravery. I am willing to _______ for a cause. I bring fire into the blood. ”

Their voices became louder and louder. The thunder got angry and the _______ started to pour. When they became _______，the rain said，“You foolish（愚蠢的）colours. Don't you know that each of you is unique（独一无二）？_______you don't agree，just _______me. " They did as the rain told them and _______ made the most beautiful rainbow（彩虹）.