题目内容
3．Since the first Earth Day in 1970，Americans have gotten a lot"greener"toward the environment．"We didn't know at that time that there even was an environment，let alone that there was a problem with it，"says Bruce Anderson，president of Earth Day USA．But what began as nothing important in public affaris has grown into a social movement．Business people，political leaders，university professors，and especially millions of grass-roots Americans are taking part in the movement．"The understanding has increased many，many times，"says Gaylord Nelson，the former governor from Wisconsin，who thought up the first Earth Day．
According to US government reports，emissions（排放）from cars and trucks have dropped from 10.3million tons a year to 5.5million tons．The number of cities producing CO beyond the standard has been reduced from 40to 9．Although serious problems still remain and need to be dealth 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 1988there were only 600recycling programs； today in 1995there are about 6600．Advanced lights，motors，and building designs have helped save a lot of energy and therefore prevented pollution．
Twenty-five years ago，there were hardly any education programms for environment．Today，it's hard to find a public school，university，or law school that does not have such a kind of program．Until we do that，nothing else will change!"says Bruce Anderson．
25．According to Anderson，before 1970，Americans had little idea aboutC．
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
A．The grass-roots level．B．The business circle．
C．Government officials．D．University professors．
27．What have Americans achieved in environmental protection？D
A．They have cut car emissions to the lowest．
B．They have settled their environmental problems．
C．They have lowered their CO levels in forty cities．
D．They have reduced pollution through effective measures．
分析 本文是一篇记叙文．本文介绍了自从1970年第一个地球日成立以来，美国的环境问题有了很大的改善．以前在公共事物中无足轻重的环境问题现在成了一项社会关注的问题，从科学家到大学教授到贫民百姓都有了环保意识．
解答 答案：25-27 CAD
25：C．细节理解题．根据文章首段Anderson说的话"We didn't know at that time there even was an environment，let alone that there was a problem with it，可知当时人们不知道环境这个概念，更别说环境问题了，故C选项正确．
26：A．细节理解题．根据文章第二段．Business people，political leaders，university professors，and especially millions of grass-roots可知商人，政界领导，大学教授，尤其是平民百姓们都参与到了保护环境的运动中来，由此判断保护环境的支持主要来自草根阶层，故A选项正确．
27：D．细节理解题．根据文章倒数第二段内容In 1988 there were only 600 recycling programs …and building designs have helped save a lot of energy and therefore prevented pollution．可知，回收工作的改进，先进产品和住房设计的研制开发等措施都有效地减少了污染，改善了环境，故D选项正确．
点评 阅读理解考查对文章的理解能力，细节理解题是常见题型，应注意选项与原文相符，切莫张冠李戴，以偏概全．
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