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52. Immediate solutions for solving problems surrounding poverty remain elusive . However , public recognition of the necessity to provide a better quality of life for millions of people will represent the first step in finding effective solutions . 立即解决贫困问题的办法仍然是难以捉摸的。然而，公众认识到为数百万人提供更高质量的生活的必要性是找到有效的解决办法的第一步。 53. What dose the future hold if mankind persists in wasting natural resources ? While no one knows for sure , scientists do exhibit a degree of certainty when predicting that future generations will face a dramatically different world . 如果人类继续浪费自然资源，未来将会有什么贮藏?没有人知道明确的答案，但是，科学家在预测后代将面对一个迥然不同的世界时确实有一定的把握。 54. Reversing undesirable social trends will be far from an easy task and will require a dramatic change in attitudes . A keen awareness of right from wrong is essential for determining appropriate social behavior . 扭转不好的社会趋势远非一件易事，看法需要有巨大的变化。对正误的深刻认识是判定得体的社会行为所必需的。 55. We owe a debt of gratitude to the many individuals who dedicated their lives to making the world a better place . However , we must not rest on their accomplishments , but must instead work assiduously to record even greater achievements . | 
