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As we continue to explore farther out into our solar system and beyond, the question of humans living on other planets often comes up. Manned bases on the Moon or Mars for example, have long been a dream of many.There is a natural desire to explore as far as we can go,and also to extend humanity's presence on a permanent or at least semipermanent basis.In order to do this,however, it is necessary to adapt to different extreme environments. On the Moon for example, a colony must be selfsustaining and protect its inhabitants from the airless, harsh environment outside.
Mars,though,is different.While future bases could adapt to the Martian environment over time,there is also the possibility of modifying the surrounding environment instead of just coexisting with it.This is the process of terraforming—adjusting Mars' atmosphere and environment to make it more Earthlike. But the bigger question is, should we?
One of the main issues is whether Mars has any native life or not and if it does, should it be preserved as much as possible? If the answer is yes, then largescale human settlement on Mars should be completely offlimits. Small colonies might be fine, but living on Mars should not be at the expense of any native inhabitants, if they exist.If Mars is home to any indigenous life,then terraforming should be a nonissue; it simply should not be done.
What if Mars is lifeless? Even if no life exists there,that untouched and unique alien environment needs to be preserved as it is as much as possible. We've already done too much damage here on our own planet. By studying Mars and other planets and moons in their current natural state, we can learn so much about their history and also learn more about our own world. We should appreciate the differences of other worlds instead of just transforming them to suit our own ambitions.
[语篇解读] 本文为议论文。移居到地球以外的星球一直是人类探索的方向。如果我们移居到火星上就有可能将火星地球化。但是考虑到火星上有原始生命或者即使无生命也应保持其原状以便我们了解到更多东西,我们不应该将火星地球化。
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