5. Princeton professor Freeman Dyson thinks that _______.
scientists will find alien life similar to ours
humans will be able to settle on Mars
alien life will likely be discovered
life will start to evolve on Mars
【解析】选。本题定位信息是Princeton professor Freeman Dyson,从而将答案出处定位到Aliens部分。该部分第四段为Freeman Dyson教授的预测:人类有可能在2056年以前就会发现来自外太空的生命,因为,寻找外太空生命的工具如光学和无线电探测仪、资料处理仪一直在不断改进,故答案为。
6. According to Princeton professor Richard Gott, by setting up a self-sufficient colony on Mars, humans _______.
might survive all catastrophes on earth
might acquire ample natural resources
will be able to travel to Mars freely
will move there to live a better life
【解析】选。本题定位信息是Princeton professor Richard Gott,从而将答案出处定位到Colonies in space部分。该部分第一段提到Richard Gott教授的预测:人类能够在火星上建立一个能够自给自足的移民地,这块移民地将成为一个生命保险单,以抵抗地球上可能发生的所有灾难,无论是自然灾难还是其它灾难。故答案为。
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