听下面一段材料, 回答第1~4题. 1. Why did the Indians dance? A. They were happy. B. They were satisfied. C. They wanted to get rain. 2. What did they dance with? A. Cod. B. The snakes. C. The seeds. 3. How do people make rain nowadays? A. By using airplanes and dry ice. B. By dancing. C. By begging God. 4. From the passage we learn that . A. the Indians are clever B. snakes are important in Indian culture C. the Indians are afraid of snakes