六、根据短文内容及首字母提示，填写所缺单词，使短文意思完整，每空限一词。
Denis Rancourt is a famous physics professor and a leading scientist in his field. He has published hundreds of scientific papers(论文)and dozens of books. One day, he d 1 to change the way he had been teaching for many years. Why?
It all started a few years earlier. While doing research, he found that both water and land were p 2, and animals were disappearing.
“What should I do?” he asked himself. “Should I c 3 to focus on my own teaching and research, or should I do something to stop these things from happening?”
As a person who cares deeply about the environment, he started doing things differently. He began with a science course which was o 4 to everyone. He invited speakers to give t 5 on topics such as environmental policy, poverty, medical care, war, globalization and trade. He encouraged students to think and d 6 what they should do to make the world a better place.
Once, a hall was filled with more than 120 people to listen to these speeches. E 7 two 12 - year - old girls entered for his class.
He became a controversial(有争议的)figure on campus. Some people admired him for his bravery, sense of social responsibility and his exciting teaching m 8. Others argued that he was damaging the reputation(名誉)of the university.
In an interview, he was asked w 9 he did these things at the risk of his own career. He answered, “As educators, we should make people realize problems. What m 10 most is to stop the bad things from happening.”
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6. 7. 8. 9. 10.

1. decided 2. polluted 3. continue 4. open 5. talks 6. discuss 7. Even 8. methods 9. why 10. matters