多谢楼上指点,OG11的解释如下: Argument Construction Situation Finding that people with low immune-system activity score lower on mental health tests than people with normal or high levels of immune activity, a researcher concludes that the immune system protects mental as well as physical health. Reasoning What assumption does the researcher make? The researcher asserts that immune-system activity can inhibit mental illness as it does physical illness.While it is possible that mental i11ness might itself depress immune-system activity, the researcher assumes that this is not the case.If mental illness caused a decline in immune-system activity, then lower levels of immune-system activity would be expected as a result,and the higher levels would merely indicate the absence of illness rather than any effect on illness. A The researcher does not distinguish between high and normal levels of immune-system activity, so this assumption is not needed. B The researcher is investigating only mental illness,not physical disease,so this assumption is not needed. C Immune-system activity could protect mental health without offering total prevention of mental illness;this assumption is not needed. D Correct.This statement properly identifies does not decrease immune system activity the researcher's underlying assumption that mental illness E Since different treatments are not discussed,any assumption about them is unnecessary. 其实我的问题跟这个帖子的lz一样,也是觉得A、C取非后也是对原结论的削弱,因此迷惑,但是现在看OG11的解释,我的理解是A、C看起来还是跟原文无关阿! 不知道这样理解对否。最近是不是考试的人少或者是大家都太强了,好像没有多少人讨论这些老帖子。 |