2. 公务员
  3. In nature, you may see many insects (昆虫)and animals of different colors. Have you ever wondered why? Locusts are super delic

In nature, you may see many insects (昆虫)and animals of different colors. Have you ever wondered why? Locusts are super delic

admin2021-09-28  53
问题     In nature, you may see many insects (昆虫)and animals of different colors. Have you ever wondered why?
    Locusts are super delicious food for birds, but it is not always an easy job for birds to catch them. It is neither because locusts are good jumpers or runners nor because they are smarter than their enemies. The reason is that the colors of locusts change with the colors of crops(庄稼). 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 insects are mostly dark-colored and they live under the soil(土壤) 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.
    Have you ever noticed some even stranger acts? The ink fish in the sea can send out some very 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 though it is not strong at all.
It is not easy for birds to catch locusts because_________.
选项 A、locusts are good runners
B、locusts can jump very high
C、locusts are smarter than birds
D、locusts can change their color
答案D
解析 细节理解题。根据第二段第三句中The reason is that the colors of locusts change with the colors of crops(庄稼)。可知原因是蝗虫随着庄稼颜色的变化而变换自己的颜色。
转载请注明原文地址:https://kaotiyun.com/show/SALq777K
本试题收录于： 小学英语题库教师公开招聘分类
0

小学英语

教师公开招聘

相关试题推荐
随机试题
最新回复(0)