GWD-3-32请教这道题呀！！！转不出来了！

cherry8cherish

Ecologist: The Scottish Highlands were once the site of extensive forests, but these forests have mostly disappeared and been replaced by peat bogs. The common view is that the Highlands' deforestation was caused by human activity, especially agriculture. However, agriculture began in the Highlands less than 2,000 years ago. Peat bogs, which consist of compressed decayed vegetable matter, build up by only about one foot per 1,000 years and, throughout the Highlands, remains of trees in peat bogs are almost all at depths great than four feet. Since climate changes that occurred between 7,000 and 4,000 years ago favored the development of peat bogs rather than the survival of forests, the deforestation was more likely the result of natural processes than of human activity.

In the ecologist's argument the two portions in boldface play which of the following roles?

A.The first is evidence that has been used in support of a position that the ecologist rejects; the second is a finding that the ecologist uses to counter that evidence.
B.The first is evidence that, in light of the evidence provided in the second, serves as grounds for the ecologist's rejection of a certain position.
C.The first is a position that the ecologist rejects; the second is evidence that has been used in support of that position.
D.The first is a position that the ecologist rejects; the second provides evidence in support of that rejection.
E.The first is a position for which the ecologist argues; the second provides evidence to support that position.
正确答案是B，但是不知道A为什么错，还有就是这里的ecologist的观点是哪个呀?是common view吗？

maestri

Ecologist的观点是：the deforestation was more likely the result of natural processes than of human activity.
黑体一：农业两千年前开始
黑体二：沼泽四千年前就开始形成了。
这两个黑体部分结合起来就能够支持ecoligist的观点：既然沼泽形成时间早于农业形成，和天气变化开始时间接近
那么自然而不是人类行为造成了森林退化，沼泽形成