例2：
Richard Got professor of astrophysics at Princeton, hopes man will set up a self-sufficient colony onMars, which would be a “life insurance policy against whatever catastrophes, natural or otherwise, might occur on Earth. (2008.6,cet6)
6. According to Princeton professor Richard Gott, by setting up a self-sufficient colony on Mars, Humans_____.
A. might survive all catastrophes on earth
B. might acquire ample natural resources
C. will be able to travel to Mars freely
D. will move there to live a better life
【答案】A
【解析】
题干中setting up a self-sufficient colony on Mars可在原文中直接找到，原文中which引导的定语从句表示的内容就是setting up a self-sufficient colony on Mars所带来的影响：人类能够应对地球上各种各样的灾难从而幸存下来。A选项中的survive all catastrophes on earth 是对原文的同义转述。
