According to US government reports, emissions(排放) from cars and trucks have dropped from 10.3 million tons a year to 5.5 million tons.The number of cities producing CO beyond the standard has been reduced from 40 to 9.Although serious problems still remain and need to be dealt with, the world is a safer and healthier place.A kind of “green thinking” has become part of practices.

　　Great improvement has been achieved.In 1988 there were only 600 recycling programmes; today in 1995 there are about 6，600.Advanced lights, motors, and building designs have helped save a lot of energy and therefore prevented pollution.

　　Twenty­five years ago, there were hardly any education programmes for environment.Today, it's hard to find a public school, university, or law school that does not have such a kind of programme.“Until we do that, nothing else will change！” says Bruce Anderson.

　　25. According to Anderson, before 1970, Americans had little idea about ________．

　　A. the social movement

　　B. recycling techniques

　　C. environmental problems

　　D. the importance of Earth Day

　　26. Where does the support for environmental protection mainly come from?

　　A. The grass­roots level.

　　B. The business circle.

　　C. Government officials.

　　D. University professors.

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