問題詳情

第 37 題至第 40 題為篇章結構，各題請依文意，從四個選項中選出最合適者，各題答案內容不重複  The fate of all life forms on earth is inevitably tied to the complex and at times unpredictable climaticpatterns of the earth. For example, the early evolution of human beings is closely connected with the emergence ofthe earth from the vast Pleistocene glaciation. 37 It may be that the amount of light and heat put out by thesun is variable on time scales of tens of thousands or more years. It may be that climatic change is caused by theslowly changing direction between the tilt of the earth’s rotation axis and its orbit. 38 It may be thatvolcanoes, pumping large amounts of dust into the atmosphere, darken the sky and cool the earth. It may be thatchemical reactions reduce the amount of carbon dioxide and other greenhouse molecules in the atmosphere, andthe earth cools.  There are, in fact, some fifty or sixty different and, for the most part, mutually exclusive theories of the iceages and other major climatic changes on earth. It is a problem of substantial intellectual interest. 39 Anunderstanding of climatic change may have profound practical consequences—because human beings areinfluencing the environment of the earth, often in ways poorly thought-out, ill-understood, and for short-termeconomic profit and individual convenience, rather than for the long-term benefit of the inhabitants of the planet. There is a range of effects pushing and pulling the climate in opposite directions. 40 While it seemsunlikely that the amount of pollution currently deemed acceptable can produce a major climatic change on earth,we cannot be absolutely sure. It is a topic worth serious and concerted international investigation.
37
(A)The reason for these climatic changes is still under serious debate.
(B)No one fully understands these interactions.
(C)But it is more than that.
(D)Space exploration plays an interesting role in testing out theories of climatic change.

參考答案

答案：A
難度：困難0.291667
統計：A(7),B(7),C(7),D(3),E(0)

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