大全-13-15

BetterMan

?? 15. In Swartkans territory, archaeologists discovered charred bone fragments dating back 1 million years. Analysis of the fragments, which came from a variety of animals, showed that they had been heated to temperatures no higher than those produced in experimental campfires made from branches of white stinkwood, the most common tree around Swartkans.
Which of the following, if true, would, together with the information above, provide the best basis for the claim that the charred bone fragments are evidence of the use of fire by early hominids?
(A) The white stinkwood tree is used for building material by the present-day inhabitants of Swartkans.
(B) Forest fires can heat wood to a range of temperatures that occur in campfires.
(C) The bone fragments were fitted together by the archaeologists to form the complete skeletons of several animals.
(D) Apart from the Swartkans discovery, there is reliable evidence that early hominids used fire as many as 500 thousand years ago.
(E) The bone fragments were found in several distinct layers of limestone that contained primitive cutting tools known to have been used by early hominids.

问题: 这道题是如何支持的呢? 答案是: E.  请大家帮忙看看.

原题结论是 : 烧焦的骨头是早期人类使用火的证据.
我是这样考虑的: 原题和结论有两个差异, 一个是从" 骨头被烧焦的温度不高于烧wood的温度" 推论出 "早期人类用火( 即他们烧wood来烤骨头)"; 第二个是" dating back 1 million years" 到 " early hominids"
按照E的角度, 是去证实 骨头是 early hominids同时期的产品, 是这样理解嘛?
感觉好像 第一个差异更大?

[此贴子已经被作者于2004-10-22 10:12:06编辑过]

番茄炒蛋

我觉得是另外的一种讲法了
要说明这个动物的骨头不是因为森林大火被烧死的而是被人给吃掉的
那附近最后就要有属于人的东西存在咯，E中的limestone that contained primitive cutting tools 不就最好的说明了原始人是把动物给烤了吃掉的
如果没有人的迹象，那这堆白骨可能只是因为天灾发大火把动物给烧死了，和人无关了

BetterMan

Thanks! 懂了.

KATIEUS

番茄炒蛋

up！