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标题: 大全 section13-15 [打印本页]

作者: snow_mountain 时间: 2004-3-19 22:49
标题: 大全 section13-15

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.fficeffice" />

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.

(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.

答案E。虽然其他明显不对，但是我从E里面也看不出any support for the evidence of human use of fire. (难道说有cutting tools 就一定有using of fires, 好像没有这种必然联系吧。)

作者: eva_yang 时间: 2004-3-20 08:43
这就是狒狒说的，相关的非充分的证明，有cutting tools只能证明说，那个时候的原始人已经可以使用工具，从而可以支持，是原始人使用火。你仔细看一下狒狒的新东方讲课就会看到累死的。是一种很重要的加强题型。

作者: delldell 时间: 2004-3-20 14:18
答案ABC都没有和人结合起来, D是肯定无关的了, 只有E和人结合起来了.

不过EVA讲这是一种很典型的题目, 可不可以再提供几个例子啊

作者: snow_mountain 时间: 2004-3-20 17:15

以下是引用eva_yang在2004-3-20 8:43:00的发言：
这就是狒狒说的，相关的非充分的证明，有cutting tools只能证明说，那个时候的原始人已经可以使用工具，从而可以支持，是原始人使用火。你仔细看一下狒狒的新东方讲课就会看到累死的。是一种很重要的加强题型。

谢谢，eva MM的解释。我又仔细看了一遍原文，估计XDF是这样推理的：因为有cutting tools, 所以树枝是人砍下来（烧火用的。）其实也只能证明会砍树，不能支持砍树是用来烧火，大概这就是MM说的相关非充分证明。虽然感觉挺牵强的，也只能这样了。

作者: weiyu 时间: 2004-3-20 17:40
Analysis of the fragments, which came from a variety of animals, showed that they had been heated to temperatures ; 说明fragments和fire有关, 在证明fragment和人有关就可以了. E 说明了这点

作者: 我爱欧洲 时间: 2005-9-27 23:01

注意问题是下面哪个选项 together with the information above提供了以前人用火的证据：

题干说用火（ heated to temperatures ），结论说以前的人用火（the use of fire by early hominids），两者之间的GAP是early hominids的存在。E正好说明用火和early hominids同时存在，填补了GAP。

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