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雅思阅读背景知识:猫头鹰

发布时间:2013-04-27 17:10:10 来源:朗阁培训中心 编辑:朗阁小编

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  为了帮助考生们更好地复习考试,宁波雅思为各位考生整理了雅思阅读背景知识:猫头鹰,供考生们参考使用。  猫头鹰(也作枭"xiāo" ...
  为了帮助考生们更好地复习考试,宁波雅思为各位考生整理了雅思阅读背景知识:猫头鹰,供考生们参考使用。
  猫头鹰(也作枭"xiāo" ,鸮"xiāo")眼周的羽毛呈辐射状,细羽的排列形成脸盘,面形似猫,因此得名为猫头鹰。它周身羽毛大多为褐色,散缀细斑,稠密而松软,飞行时无声。
  Most of the owl perched in a tree, some species inhabit the rocks and grass.
  Most of owls are nocturnal animals, nocturnal, during the day hidden in the bushes caves or eaves not easy to see, but there are such as the spot head owl Liu xiūliú "some species, Athene noctua owl and eagle owl during the day uneasy and lonely, often go out; consistently nocturnal species, once during the day, often like a drunken flight bumpy uncertain.
  The main the owl food to rodents, but also eat insects, birds, lizards, fish and other animals. They have spit the food habits of the pill ", the prime solemn feast has the ability to digest food often swallow whole, can not digest bones, feathers, hair, chitin quality and food debris waste integrated block, the formation of small group through the esophagus and mouth, spit it out, called food pills, I also called spit. Analysis of food pills, scientists can understand their feeding habits.
  Owl determine the orientation of the prey, they quickly attack. Owl feathers are very soft, velvety and dense down wings feathers, thus owl flight acoustic frequencies less than 1 kHz, the general mammalian ear is feeling less than low frequency. This silent attack the offensive of the owl is more "lightning war" effect. According to the research, the owl in the lap of prey, the hearing still plays a role in positioning. It can prey move the ring, and constantly adjust the lap direction, and finally the claw achieve success.
  猫头鹰是色盲,也是唯一不能分辨颜色的鸟类,除了某些过惯了夜生活的鸟类,如猫头鹰等,因为视网膜中没有锥状细胞,无法辨认色彩以外,许多飞禽都有色彩感觉。
扩展阅读:雅思口语考试的用词法      雅思分类词汇:教育培训
  以上就是宁波雅思培训为大家整理的雅思阅读背景知识:猫头鹰。想了解更多相关信息和学习技巧,欢迎您访问我们的网站。预祝大家在考试中取得好成绩!烤鸭们,加油!
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