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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
admin
2021-09-28
71
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.
What is the main ides of this passage?
选项
A、Some insects and animals have different skills.
B、Some insects and animals are clever than we think.
C、Some insects and animals use colors to protect themselves.
D、Some insects and animals can get used to the environment easily.
答案
C
解析
主旨大意题。根据文章每一段的大意可知,整篇文章写的是动物怎样利用颜色保护自己。题目中没有明显主题句,可以通过关键词句来概括。
转载请注明原文地址:https://kaotiyun.com/show/gALq777K
本试题收录于:
小学英语题库教师公开招聘分类
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小学英语
教师公开招聘
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