Earthquakes, volcanic eruptions, and unusual weather have caused many more natur

游客2024-01-13  29

问题 Earthquakes, volcanic eruptions, and unusual weather have caused many more natural disasters adversely affecting people in the past decade than in previous decades. We can conclude that the planet Earth as a natural environment has become more inhospitable and dangerous, and we should employ the weather and earth sciences to look for causes of this trend. The conclusion drawn above is most seriously weakened if which of the following is true?

选项 A、The weather and earth sciences have provided better early warning systems for natural disasters in the past decade than in previous decades.
B、International relief efforts for victims of natural disasters have been better organized in the past decade than in previous decades.
C、There are records of major earthquakes, volcanic eruptions, droughts, landslides, and floods occurring in the distant past, as well as in the recent past.
D、Population pressures and poverty have forced increasing numbers of people to live in areas prone to natural disasters.
E、There have been no changes in the past decade in people’s land-use practices that could have affected the climate.

答案 D

解析 本题是由一个事实而得出结论“地球变得不友好和危险是原因”,属于典型的“B,A”模式,所以反对思路主要是反对段落推理的隐含假设,即用“除了A以外有别的因素影响B”;(D)指出了“popula—tion pressures and poverty”这个因素可能影响B,所以(D)正确;由于段落推理的最后一句话是个sugges—tion,所以(A)只与suggestion有关,但与结论A还有一定的距离,所以(A)不对;(B)与推理无关;(E)排除了其他因素影响B的可能,所以可以作为一个假设;(C)易误选,但(C)是一个无关选项,若(C)在“records”之前加入“the same”,则(C)就变为一个假设。
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