GWD6-6

吴越女

流沙 发表于 2004-10-5 18:20
注意题目Which of the following, if true, would most weaken Krech’s objections to Martin’s theory。 ...

C明显削弱啊：C的意思是说在P时期之前和之后都有出现过很大的天气变化，却没有大面积的动物灭绝，所以说天气变化不是原因啊

yoyo_jingxuan

我本来选的C，看了以后觉得B是正确的。大家要注意哦，这里的削弱不是CR里的削弱，而是RC，也就是说所有的驳斥应该都是根据文中原文来的，原文中明确写道，K反对M的论据是：anthropologist Shepard Krech points out that large animal species vanished even in areas where there is no evidence to demonstrate that Paleoindians hunted them. Nor were extinctions confined to large animals: small animals, plants, and insects disappeared, presumably not all through human consumption. K反对的理由就是没有理由证明是人类致使这些大小动物灭绝，所以M的人类原因不成立，那么反对，就直接反对论据，B

hscryzer

这题真的很尴尬

我觉得细节题最好就定位一句话，但是这个问题加这片文章又很难定位

如果仔细看文章的话，其实第二位学家也是同意人类要对动物灭绝负责的，但不是主因（可以根据第三位学者的观点，前两个人的矛盾点就在于人类是主因还是次因）。所以第二个学者的主要观点是气候变化才是动物灭绝主因

bnuchenchen

我的理解是
B反驳了这一句Shepard Krech points out that large animal species vanished even in areas where there is no evidence to demonstrate that Paleoindians hunted them. Nor were extinctions confined to large animals:  small animals, plants, and insects disappeared, presumably not all through human consumption.

对于紧接着的Krech also contradicts Martin’s exclusion of climatic change as an explanation by asserting that widespread climatic change did indeed occur at the end of the Pleistocene. 而C中的Climate change occurred  in previous and subsequent eras C只说了气候变化，并没有说明climate change导致extinction的情况。

Lorraine160

valarie 发表于 2004-9-18 01:54
I don't agree. 使用这些逐渐灭绝的东西 doesn't mean it caused this small animals,plants to become ext ...

同意！