阅读理解
The ostrich (能鸟)is a bird of the deserts of Africa.It is the largest of all birds.It is often 10 feet high.Sometimes the ostrich is called the “camel bird”.Like the camel it lives in the desert, and can live a long time without water.
The ostrich's legs are very long and strong, but its wings are small, and it cannot fly.The ostrich can run very quickly-about 30 km an hour.The nest of the bird is a great hole in the sand.There the ostrich lays (产, 生)10 or 12 large eggs.She watches her nest and leaves it only during the hottest part of the day.
People often hunt the ostrich, but it is not easy to catch it.The hunter must know that the ostrich runs only in a zigzag pattern (z 字形路线).
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