6、从1970年第一个地球日成立以来,美国的环境有了很大改善。1.AccordingtoAnderson,before1970,Americanshadlittleideaabout________.A.thesocialmovementB.recyclingtechniquesC.environmentalproblemsD.theimportanceofEarthDay3答案 C [事实细节题。根据文章第一段中“Wedidn'tknowatthattime...letalonethat...aproblemwithit.”可知美
7、国人在1970年以前对环境问题知之甚少,故C项正确。]2.Wheredoesthesupportforenvironmentalprotectionmainlycomefrom?A.Thegrassrootslevel.B.Thebusinesscircle.C.Governmentofficials.D.Universityprofessors.答案 A [事实细节题。根据文章第二段中“Businesspeople,politicalleaders,universityprofessors,andespeciallymilli