61．The writer’s general attitude towards the world leaders meeting at the UN is＿＿＿．
　　[A]supportive 
　　[B]impartial
　　[C]critical 
　　[D]comedic
　　62．What does the author say about the ordinary people in the Third World countries?
　　[A]They are beginning to realize the importance of environmental protection．
　　[B]They believe that many children are necessary for prosperity．
　　[C]They are reluctant to accept advice from the government．
　　[D]They think that earning a living is more important than nature conservation．
　　63．What did the UN call on nations to do about C02 and other greenhouse gases in 1992?
　　[A]To sign a new climate treaty at Ri0．
　　[B]T0 draft an agreement among UN nations．
　　[C]To force the United Sates to reduce its emissions．
　　[D]To limit the release of C02 and other gases．
　　64．The word“deforestation”in Paragraph 3 means＿＿＿．
　　[A]forest damage caused by pollution
　　[B]moving population from forest to cities
　　[C]the threat of climate change
　　[D]cutting large areas of trees
　　65．Which of the following best summarizes the text?
　　[A]As the UN hesitates，the poor take action．
　　[B]Progress in environmental protection has been made since the Rio Summit．
　　[C]Climate changes Can no longer be neglected．
　　[D]The decline of earth’s life-support systems has been halted．

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