题型:阅读选择 题类: 难易度:普通
广东省深圳市罗湖区深圳中学2024-2025学年九年级上学期上学期开学考英语考试试卷
In nature, you may see many insects and animals of different colors. For example, have you ever wondered why locusts(蝗虫) are super hard for birds to catch? It is neither because locusts are good jumpers or runners nor because they are smarter than their enemies(敌人) . Actually, the reason is that the colors of locusts change with the colors of crops. When crops are young, locusts look green. But when autumn comes, locusts change to the yellow and brown color as crops do.
Brown bears, tigers and other animals move quietly through forests. They can't be seen easily by their enemies. This is because they have colors similar to the trees. For the same reason, polar bears that live on a land of snow and ice are white. Butterflies and bees living among the flowers are colorful like flowers. Soil (土壤) insects are mostly dark- colored and they live under the soil in a dark and wet environment. However, insects with colors different from plants can easily be found and eaten by others. So in order to survive, they have to hide themselves in the daytime and appear only at night.
The ink fish in the sea can send out some black ink when it faces danger. As the ink spreads over, its enemies will find themselves suddenly in a dark world. At the same time, the ink fish immediately swims away. That is how it keeps itself safe.
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