阅读理解中议论文解题思路
　（2011
年江西卷）
　D　Why should mankind explore space? Why should money, time and effort be spent exploring and researching something with so few apparent benefits? Why
should resources be spent on space rather than on conditions and people on Earth? These are questions that, understandably, are very often asked.
　Perhaps the best answer lies in our genetic makeup(
基因构成
) as human beings. What drove our ancestors to move f
rom the trees into the plains, and on into all possible areas and ...