题目

北京围绕故宫一带的市中心不是中心商务区，而是行政区，其原因是 A．主要受历史因素和城市性质的影响 B．该地段的交通通达度差 C．该地段地价太高 D．该地段的地形不适宜作为商业区 答案：A 解析: 略     The ostrich(鸵鸟) is a bird in the deserts of Africa. It is the largest of all birds. It has a long neck, a small body and two small wings. Sometimes the ostrich is called “camel bird”. Like the camel, it lives in the deserts, 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—30 miles per hour. The nest of the bird is a great hold in the sand. There the ostrich lays 10 or 12 large eggs. She watches her nest and leaves it only during the hottest part of the day. The ostrich likes eating. Sometimes it eats small stones that help grind up (磨碎) food. People like their feathers very much. They cut them sometimes, but this does not hurt the birds. The feathers can grow again. 1. Where can people easily find an ostrich in Africa? A. In the rivers.     B. In the sky.      C. In the forests.        D. In the deserts. 2. How many miles can an ostrich run in three hours? A. 30.                         B. 60.                 C. 90.                       D. 100. 3. How many eggs can an ostrich lay once? A. Less than ten.      B. More than fifteen.      C. About ten.         D. About fourteen. 4. Why does the ostrich eat stones? A. They’re good for it to digest (消化) food. B. It thinks they are delicious. C. It has nothing else to eat. D. They are its main food. 5. Which of the following is true according to the passage? A. The ostrich will die if it has no water to drink for two days. B. The ostrich has wings but it cannot fly like other birds. C. The ostrich often lays its eggs in the tree. D. If an ostrich’s feathers are cut, it’ll die.