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据联合国估计的数字,到2035年,全世界人口将会突破100亿大关,人类赖以生存的地球将难以承受人口爆满带来的压力。(以科学的数据准确地说明未来人口的压力之大,引起下文。)出路在哪里呢?一部分科学家认为,要向外星移民,要尽快地开发月球、火星,使之成为人类生存繁衍的星体。还有一部分科学家对向外星移民持反对态度.他们认为当务之急是在宇宙空间建造“太空岛”。建造“太
According to figures estimated by the United Nations, by 2035, the population of the world will exceed the 10 billion mark, and the earth on which mankind depends will not be able to withstand the pressure caused by the explosion of population. (Scientific data accurately illustrate the pressure of the future population, causing the following.) Where are the outlets? Some scientists believe that to immigrate to outer space, we must develop the moon and Mars as soon as possible to make it a star for human survival and reproduction. . Some scientists are also opposed to alien migration. They think that the most urgent task is to build ”space islands“ in space. Build ” too