请教大全-20-2，完全晕了~~~~

jessicasonia

大全-20-2

2.     Mud from a lake on an uninhabited wooded island in northern Lake Superior contains toxic chemicals, including toxaphene, a banned pesticide for cotton that previously was manufactured and used, not in nearby regions of Canada or the northern United States, but in the southern United States. No dumping has occurred on the island. The island lake is sufficiently elevated that water from Lake Superior does not reach it.

The statements above, if true, most strongly support which of the following hypotheses?归纳T

(A) The waters of the island lake are more severely polluted than those of Lake Superior.

(B) The toxaphene was carried to the island in the atmosphere by winds.

(C) Banning chemicals such as toxaphene does not aid the natural environment.

(D) Toxaphene has adverse effects on human beings but not on other organisms.（B）

(E) Concentrations of toxaphene in the soil of cotton-growing regions are not sufficient of be measurable.



请问最后一句话在这里起什么作用啊？The island lake is sufficiently elevated that water from Lake Superior does not reach it.

上面话中的The island lake 是指 Mud from a lake on an uninhabited wooded island in northern Lake Superior 中的lake吗？我想不是的，因为原文第一句话说这个lake里面的mud是有毒的，那最后一句话里面的The island lake 又是指哪个lake呢？我完全晕了，救命啊~~~~~

bastencool

条件1：岛（位于Lake Superior里的一个无人居住、树木茂盛的岛）上的湖里的土是有毒的

条件2：这种毒物（一种被禁止在棉花栽植中使用的杀虫剂）的生产使用是在美国南部，而不是在临近的加拿大及美国北部地区

条件3：岛上没有倾倒物

条件4：岛里的湖地势较高所以Lake Superior的湖水无法抵达

自发性的问题：那毒物到底从哪里来

hjbb1027

好像不能算归纳题吧, 至少不是问结论的题目

不过我作的时候也是把B排除了,觉得Bt太绝对了, 没有证据表明是由风吹来的

但看了答案, 然后再看了一遍问题,问的是 most strongly support which of the following hypotheses?

是hypotheses, 所以应该就是了,

还是要看清题目问什么亚

honoluluhono

请问这道题是归纳题吗? 如果是归纳那B中的WIND 为什么不能无关词排除呢?

LoveY

似乎是这么个关系:
有个湖叫Lake Superior , 湖里有个岛, 这个岛上有个内湖,也就是所谓的the island lake,并且该内湖的海拔比Lake Superior要高.

一开始我错把elevate理解成evaporate, 觉得无法理解.

jessicasonia

恩，有点头绪了~~

coloryao

个人浅见：This island lake 就是一开始的a lake on an uninhabited wooded island in northern Lake Superior ，最后一句话排除了毒素从Lake Superior 进入island lake 的可能性，可以算是个assumption吧。