Do you want to live another 100 years or more? Some experts say that scientific advances will one day enable humans to last tens

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问题     Do you want to live another 100 years or more? Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span. "I think we are knocking at the door of immortality (永生), "said Michael Zey, a Montclair State University business professor and author of two books on the future. "I think by 2075 we will see it and that’s a conservative estimate (保守的估计)."
    At the conference in San Francisco, Donald Louria, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology (纳米技术) make it likely that humans will bye in the future beyond what has been possible in the past. "There is a great push so that people can live from 120 to 180 years," he said. "Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years." However, many scientists who specialize in ageing are doubtful about it and say the human body is just not designed to last past about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.
    Scientists also differ on what kind of life the super aged might live. "It remains to be seen if you pass 120, you know; could you be healthy enough to have good quality of life?" said Leonard Pooh, director of the University of Georgia Gerontology. Centre. "At present people who could get to that point are not in good health at all."  
Donald Louria’s attitude towards long living is that______.

选项 A、people can live from 120 to 180
B、it is still doubtful how long humans can live
C、the human body is designed to last past about 120 years
D、it is possible for humans to live longer in the future

答案D

解析 本题问Donald Louria对长寿的态度是怎样的。A选项people can live from 120 to 180的意思是“人们(现在)就可以活120年到180年”,这与原文意思不符。第二段第二句 There is a great push so that people can live from 120 to 180 years的意思是“为了人能活120岁到 180岁,现在开展了大规模的研究工作”。Push有“(对敌人发起)猛攻”的意思。So that引出表示目的的从句。B选项it is still doubtful how long humans can live的意思是“人类到底能活多久还不好说”。这也不是Donald Louria的观点。C选项the human body is designed to last past about 120 years“人类身体是为了能够活120岁以上而设计的”,恰恰与原文many scientists who specialize in ageing are doubtful about it and say the human body is just not designed to last past about 120 years相反。本题的答案可以从第二段第一句里找到:Donald Louria… said advances in using genes as well as nanotechnology(纳米技术)make it likely that humans will live in the future beyond what has been possible in the past.意思是“基因运用和纳米技术的发展使人们未来可能比过去活得时间更长”。也就是D选项it is possible for humans to live longer in the future所表达的意思。
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