学术综合英语听力答案

学术综合英语 Road building 1. The lecture is mainly about the relationship between road building and economic development. 2. The two important agricultural products are grain and cotton. 3. In the East they grew grain; in the South they grew cotton. 4. Advantages of roads: fast and convenient. 5. Purpose for road building: to transport grain and cotton Task two 1. A booming trade in grain and cotton 2. Because of the rapidly growing population and the large number of immigrants from Europe. 3. The farmers got laborers from Africa. 4. Because it was easy and cheap to transport goods from one place to another. 5. They built roads and collected fees. Mississippi River 1. The origin of the River: Lake Itasca in Minnesota 2. The total length: about 4,000 kilometers. 3. The problem: flooding in summer 4. The four ways: floodways, dams, levees and reservoirs 5. Two functions: holding water and generating electricity Task two: 1. 31 U.S. states. 2. It flows from the North to the Gulf of Mexico. 3. They are empty channels. When the river is too high, the floodways are opened and some of the water can flow into the floodways. 4. They are earthen walls built alongside a river, holding the water and keeping it from over flowing. 5. Since the 20th century. Talking with Harry Potter 1. He devoted most of his time to Harry Porter films. 2. He is grateful for the brilliant organization on the film set, his tutors and his friends. 3. People from other countries treat Daniel kindly, warmly and generously. 4. He feels very lucky to have worked with the two Harry Potter directors. 5. Daniel tries to live a normal life. Task two: 1. Four 2. He feels that he lives a busy, efficient and normal...