[解析]
(1)C.代词指代题。根据第二段Not long after early European settlers arrived at America,they declared their independence and created the constitution by which modern American society functions.(早期的欧洲殖民者到达美洲后不久,他们宣布独立,并制定了现代美国社会运行所依据的宪法。)可知,this代指前面的欧洲殖民者到美洲定居。A.Modern American society现代美国社会;B.The creation of constitution宪法的制定;C.The settlement of Europeans欧洲人的定居;D.The exploitation of resources资源的开发。故选C。
(2)C.推理判断题。根据第三段Will our landing on mars break the ecosystem on Mars?It is possible that Mars has ideal minerals for future development.But apart from technology challenges,will the mining have a disastrous environment impact on this red neighbour as it has already had on Earth?(我们登陆火星会破坏火星上的生态系统吗?火星可能有理想的矿物供未来开发。但是除了技术上的挑战,采矿是否会对这个红色邻居造成灾难性的环境影响,就像它在地球上已经造成的那样?)可知,作者担心对火星的探索可能会破坏火星的生态系统,故选C。
(3)B.推理判断题。根据最后一段However,as we look to exploring worlds beyond our own,we need to begin now to look at history to consider how best to engage with different life forms,cultures and environments.We may be capable of writing a law,but we first need to clear our potential invasive impact on another planet that may be completely defenseless.(然而,当我们着眼于探索我们自己以外的世界时,我们需要从现在开始审视历史,考虑如何最好地融入不同的生命形式、文化和环境。我们也许有能力制定法律,但我们首先需要清除我们对另一个星球潜在的入侵影响,这些影响可能是完全没有防御能力的。)可知,进行更多的科学研究是作者对未来空间探索的建议,结合选项,故选B。
(4)A.文章出处题。通读全文内容可知,本文主要讲的是作者对人类探索太空会对太空带来什么样的影响以及应该如何进行探索太空提出自己的建议,由此可推出本文节选自"观点,见解"的栏目,A.Opinion观点;B.History历史;C.Technology技术;D.Environment环境。故选A。