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　　All fruits have bright c　　1　　 when they are ripe, but they grow on green o　　2　　 dark brown trees．Why?Perhaps you do not know the reason．Here is the a 　　3　　．The tree wants birds and animals to see its fruit c　　4　　．The fruit has seeds i　　5　　．

　　There will be no y　　6　　 trees if the seed is not carried away and put into the ground somewhere else．Birds and animals eat the flesh(果肉)of the fruit w　　7　　 they see its bright color and they d　　8　　 the seeds here and there．For example, the orange tree grows the s　　9　　 flesh of its fruit and give it a bright color so that some animals m　　10　　 eat it and carry away the seeds．