标题: OG12-13 [打印本页] 作者: AnyaAnya 时间: 2010-2-1 15:17 标题: OG12-13 13. In Swartkans territory, archaeologists discovered charred bone fragments dating back one 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 500,000 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.
为什么答案是E？有什么关系吗？作者: qfxl 时间: 2010-2-1 21:10
题干中一直未提到hominids，所以要证明 the charred bone fragments are evidence of the use of fire by early hominids，必须要是hominids与bone fragments产生联系。其实最简单的办法就是找5个选项中哪个中同时有hominids和bone fragments，显然只有E。作者: lyly85777 时间: 2014-6-2 23:24
谢谢解释！！
