| Why Birds Sing? |
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| 引用本文： | 郑钧.Why Birds Sing?[J].中学英语园地(高三版),2006(9). |
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| 作者姓名： | 郑钧 |
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| 作者单位： | 江苏建湖高中 |
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| 摘 要： | Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing or whistle when you are happy. Some scientists believe that birds do sing some of the time just because they are happy. However, they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.D o you know whata “territory”is?A territory is an area that an an- im al,usually the m ale,claim s(声称)as its ow…
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