He told Big Think, “We've made remarkable progress in the last hundred years. But if we want to continue beyond the next hundred years, our future is in space.”
Getting to another planet will prove a challenge, not to mention colonizing it for humanity. Katherine Freese from University of Michigan told Big Think, “the nearest star to Earth is Proxima Centauri which is 4.2 light years away. That means, if you were traveling at the speed of light the whole
time, it would take 4.2 years to get there — or about 50,000 years using current rocket science.”
1.Humans are advised to abandon Earth mainly because ________.
A.aliens will take up our home planet soon
B.it was discussed in the forum Big Think
C.many scientists like Hawking are concerned about it
D.many disasters will happen on Earth
解析:选D 细节理解题。根据文章第四段中的“It will be difficult enough to avoid disasters on planet Earth in the next hundred years, let alone the next thousand, or million.”可知,在接下来的几百年中地球上会有许多灾难发生。故答案为D。
2.Thinking about the future of humans, Hawking feels that ________.
A.humans can't live on Earth any longer
B.Earth will not be habitable for humans
C.other planets are ready for humans to reach
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