1. 23’
P: investor-owned hospitals require less public investment, few employees, and have high occupancy levels, compared with nonprofit hospitals
C: Therefore investor-owned hospitals deliver better medical care.
【因果】假性因果。文章错误滴把investment, employee, occupancy level和medical care quality 因果联系在一起。
削弱,就是指出两个没有因果关系。Less public investment, fewer employees, and higher occupancy levels not necessarily bring higher medical care. 或者直接削弱结论,investor-owned hospitals not provide better medical care
2. 36’
P: the infant mortality rate is an indicator of society’s health status
P: the overall mortality rate is declining
C: however the decline do not represent that babies in US are healthier than before
【差异】婴儿的死亡率是社会健康的标志,最近整体的死亡率下降了,但是不表示婴儿比以前更加健康
The United States has been developing and his achieved extremely sophisticated technology for saving premature and low-birth-weight babies, most of whom require extended hospital stays. 美国的科技可以救早熟的和低于正常体重的婴儿,大多数的这些不正常婴儿需要更长的住院时间。
所以死亡率降低,只是因为有更好的科技了
3. 44’P: new and more stringent rules have been in effect since last August C: therefore the 50 percent increase in airplane problems were caused by the new rules, but not human failure 【因果】因为去年八月新的严格规定颁布了,所以增加的飞机问题是因为新的规定,而不是人为。这里把同时发生的新规定和增加的错误定位因果关系。 假设,就是规定是唯一原因,人为没有影响。没有他因。The new rules are the only reason for the increased problems, and no reasons including human failure are account for that.
4. 33’ P: half of the alumni indicated that there were in the 1/4 of the graduating class 【差异】一半被调查的毕业生说当时他们在top 25%。出现调查,就要怀疑调查的代表性。或许调查的都是好学生,所以一半的人都是top 25%里面的,没有任何理由说明被调查的就是平均分布的。 Explanation: half of the alumni surveyed were in the top 25%, or only the top alumni were selected to join the survey, or only those who were good students were responded to the survey…. |