step by step3000第三册unit2答案及原文

英语专业学生经典的听力材料

Unit 2Earth and Environment

Part 1Warming up

A

1. ...impact of climate change … damage to crops … worse ...

2. ...2000 delegates …northern Brazil … third United Nations

Conference on Desertification.

3. ...A huge oil spill … Mexico, ...

4. Wildfires … Florida … contained … a week ...

5. ... Greenland is melting around the edges … 50 cubic kilometers …

raise global sea level ...

B

1. It attempts to balance environmental concerns and the needs of the community.

2. Reptile species are in greater trouble than amphibian species.

3. A new approach in the fight against the illegal drugs trade.

4. One in every eight species of plants is threatened with extinction.

5. A new local directory for the environmentally-aware, called the

“Boulder County Green Pages”.

Part II News Reports

A

...Washington … the information economy … deteriorating health of

the planet … information economy … communication … education and entertainment … physical exam … vital signs … species … climate … temperatures … water tables … glaciers … forests … fisheries … to stabilize both climate and world population growth

B

Summary

… the severe shortage of water in some developing nations. … global solutions are found soon.

Answers to the questions

1.150

2. Monday

3. Almost one billion people could suffer from a scarcity of water.

4. Middle East, parts of Africa, western Asia, Northeastern China,

western and southern India, large parts of Pakistan and Mexico, parts of the Pacific coast of the United States and South America.

5.To treat water as a precious resource.

6. 5 liters

7.50 liters

8.500 liters

Part III City recycling

A a. 2 b. 4 c. 3 d. 1

B

1.130,000 / 80%

2. Plastic / glass / tin cans / newspapers

3. Recycle truck pick it up.

4. One of community’s recycling centers

5. Each weekday

6. Conducts tours of the plant

7. 3 / 4

8. Sod to other companies that make them into different products

9. Made into new containers

10. One of the top five in the USA