当前位置：首页 > 时文闯关 > 中考真题2025年山东省济宁市任务型阅读-水果颜色的成因之谜
中考真题2025年山东省济宁市任务型阅读-水果颜色的成因之谜
中等
难度
说明文
时文类型
科学技术与研究
时文话题
大学
适合年级
奇速优课
From red apples to yellow bananas and green watermelons, fruits come in many different colors. Why do different kinds of fruits have so many colors?
Liu Wei, a scientist from China, explains that fruit colors actually come from their different pigments (色素). How many pigments appear depends on where they grow. Therefore, the environment plays an important role in fruit colors.
To find out how the environment influences fruit colors, Chinese scientists studied more than 280 different fruit colors, including white, red, blue, purple and black. They found that red fruits prefer to grow in cooler places, while blue and purple fruits mostly grow in warm places.
Animals have also had an influence on the evolution (进化) of fruit colors. Animals eat fruits and later drop the seeds in other places. This helps the fruits spread and grow in different places. In order to catch animals’ attention, some fruits turn into colors that are easy for them to see.
However, animals see colors in a different way. Fruits need to develop colors that fit what animals can see. For example, birds can see red more easily than humans can. As a result, there are more red fruits in areas where birds live. Some monkeys are red-green color-blind, so yellow fruits can be found in their habitats (栖息地), as they can easily see this color.
