()1.According to Anderson, before 1970, Americans had little idea about ____.

　　A．the social movement

　　B．recycling techniques

　　C．environmental problemsD．the importance of Earth Day

　　()2.Where does the support for environmental

　　protection mainly come from?

　　A．The grass­roots level.B．The business circle.

　　C．Government officials.D．University professors.

　　()3.What have Americans achieved in environmental protection?

　　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.

　　()4.What is especially important for environmental protection according to the last paragraph?

　　A．Education.

　　B．Planning.

　　C．Green living.

　　D．CO reduction.

　　【主旨大意】本文是一篇说明文。在第一个“地球日”之前，人们根本不知道何为环境，更无从谈起环境保护这个问题。但是现在人们变得越来越环保了，这完全得益于有关环境的教育课程。

　　1．【答案】C

　　【解析】细节理解题。根据文章第一段第二句“We didn't know at that time that there even was an environment, let alone that there was a problem with it… ”可知，安德森认为，1970年以前，美国人不知道有关环境的问题。故选C项。

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