学术综合英语听力答案

Unit 1

Text 1 Road Building

Task 1.

1.the relationship between road building and economic development

2.grain and cotton

3.grew grain grew cotton

4.fast and convenient

5.to transport grain and cotton

Task 2.

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 on place to another.

5.They built roads and collected fees.

Text 2 The Mississippi River in America

Task 1

http://m.wendangku.net/doc/41a5b32a2af90242a895e5b6.htmlke Itasca in Minnesota

2.about 4, 000 kms.

3.flooding in summer

4.floodways, dams, levees and reservoirs

5.holding water and generating electricity

Task 2.

1.21 US states.

2.It flows from the North to the Gulf of Mexico

3.They are empty channels. When the Mississippi 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 overflowing.

5.Sine the 20th century.

Unit 2

Text 1 An eyewitness to changes in China

Task 1

1. a foreigner’s perception of China’s reform and development.

2.working to build bridges between Chinese people and American people

3.1) it had established extremely close and unbreakable relations with the people

2) its soldiers had a shared vision of a bright future

4. 1) study Chinese reality

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