feifei-78请教

kenyon

Questions 78-79

Despite improvements in treatment for asthma, the death rate from this disease has doubled during the past decade from its previous rate. Two possible explanations for this increase have been offered. First, the recording of deaths due to asthma has become more widespread and accurate in the past decade than it had been previously. Second, there has been an increase in urban pollution. However, since the rate of deaths due to asthma has increased dramatically even in cities with long-standing, comprehensive medical records and with little or no urban pollution, one must instead conclude that the cause of increased deaths is the use of bronchial inhalers by asthma sufferers to relieve their symptoms.

 

78. Each of the following, if true, provides support to the argument EXCEPT:

 

A.        Urban populations have doubled in the past decade.

B.        Records of asthma deaths are as accurate for the past twenty years as for the past ten years.

C.        Evidence suggests that inhalers make the lungs more sensitive to irritation by airborne pollen.

D.       By temporarily relieving the symptoms of asthma, inhalers encourage sufferers to avoid more beneficial measures.

E.        Ten years ago bronchial inhalers were not available as an asthma treatment.

答案是A我可以理解。但C我还是有点疑问，一方面C确实可以support，但话说回来，题目中没有airborne pollen啊，不算一个无关选项么？如果无关的话就不support了啊。请教请教各位！

vivian_zmszz

思路：现象：death rate doubled. 结论：the cause of increased death is ……

支持方向：

1，论据的有效性。

2，的确是这个原因。

A.        削弱, 人口double了，支持了two possible explanations之一，反对了结论。

B.         支持。中心，过去，现在一样accurate.

C.         支持结论，就是inhalers 造成的。

D.        同C。

E.         支持，排除可以削弱的他因（eg, Ten years ago bronchial inhalers were as many as that used today. 就是削弱）。

anzhiying

请问，答案说A是削弱，请问为什么？和population有什么关系？我觉得是无关

Hattielin87

其实，我不明白为什么B是错的呢~~

cyjessica128

题目所述如下：
尽管asthma的治疗水平得到很大提高了，但是其近十年的死亡率仍然比前的20年多2倍，这可以有2个原因加以解释：第一，现在的统计数据more widespread & accurate；第二，由于urban pollution造成的。但是，事实上在城市的统计数据已经够long-standing & comprehansive medical records & little or no urban pollution，所以其cause is the use of bronchial inhalers by asthma sufferers to relieve their symptoms.

问：以下support to argument，除哪项外：

很显然题目最后的argument有三项：long-standing, comprehansive medical records, little or no urban pollution.并否定了之前的两项：more widespread & accurate, urban pollution.

这样题目就很简单了，找否定的两项的肯定是削弱的，是答案；而前面的三项则是support的。

这样选择A毫无疑问了；

题目的关键在于理顺其推理的思路，并自己先理解消化记住，然后看选项找关键字定位