2008年6月大学英语六级AB卷答案(昂立版)

Richard Miller, a professor at the University of Michigan, thinks scientist could develop“an thentic anti-ageing drugs” by working out how cells in larger animals such as whales and human resist many forms of injuries. He says:“It’s is now routine, in laboratory mammals, to extend lifespan by about 40%. Turning on the same protective systems in people should, by 2056, create the first class of 100-year-olds who are as vigorous and productive as today’s people in their 60s”

Aliens

Conlin Pillinger ,professor of planerary sciences at the Open University,says:”I fancy that at least we will be able to show that life didi start to evolve on Mars well as Earth.”Within 50years he hopes scientists will prove that alien life came here in Martian meteorites(陨石).

Chris McKay,a planetary scientist at NASA’s Ames Research Center.believes that in 50 years we may find evidence of alien life in ancient permanent forst of Mars or on other planers.

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