英语听力教程第三版(张民伦主编)Unit 1 The Earth at Risk听力原文
2. monsoon season：the season of heavy rains that fall in India and neighboring countries
3. hygiene：the study and practice of how to keep good health, esp. by paying attention to cleanliness
4. accelerate：(cause to) move or go faster
5. fossil fuel：any naturally occurring carbon or hydrocarbon fuel, such as coal, petroleum, peat, and natural gas, formed by the decomposition of prehistoric organisms
6. latitude：a measure of relative position north or south on the Earth's surface, measured in degrees from the equator, which has a latitude of 0°, with the poles having a latitude of 90° north and south.
7. contamination：the act of polluting or the state of being polluted
8. hierarchy：a system in which people or things are arranged according to their importance
9. priority：something given special or prior attention
10. watershed：a ridge of high ground forming a divide between two different drainage basins or river systems or the region enclosed by