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51The following appeared in a medical newsletter.
"Doctors have long suspected that secondary infections may keep some patients from healing quickly after severe muscle strain. This hypothesis has now been proved by preliminary results of a study of two groups of patients. The first group of patients, all being treated for muscle injuries by Dr. Newland, a doctor who specializes in sports medicine, took antibiotics regularly throughout their treatment. Their recuperation time was, on average, 40 percent quicker than typically expected. Patients in the second group, all being treated by Dr. Alton, a general physician, were given sugar pills, although the patients believed they were taking antibiotics. Their average recuperation time was not significantly reduced. Therefore, all patients who are diagnosed with muscle strain would be well advised to take antibiotics as part of their treatment."
这篇A存在以下缺陷
1.前提不成立。作者没有任何资料证明患者容易二次感染,尤其是肌肉拉伤的患者是否更容易二次感染。
2 实验的代表性 作者没有提供任何有关患者的资料 例如性别 年龄 身体状况,这些都是影响治疗的因素
3。作者没有提供两名医生的信息,可能前一个医生经验丰富,有治疗二次感染的经验,而后一个不是很有经验,
又超时了,晕!!!:L:vomit: 458字
:vomit:In this argument,the arguer recommends that the patients who are diagnosed with muscle strain should take antibiotics as part of their treatment. In order to support the recommendation ,the arguer points out that according to the recent study,the doctor proved the hypothesis that secondary infection may keep some patients from healing quickly after severe muscle strain.The arguer also mentions that the study consists of two groups of people,and people in one group take antibiotics during the treatment recovered soon than another group of peole who take sugar pills.However,the recommendation relies on a series of unsubstantiated assumption and therefore unpersuasive as it stands.
In the first place,the arguer unfairly assumes that the patients who get muscle strain will get the second infections easily.The arguer provides no evidence that the second infection is inevitable or the patients who have muscle strain will definitely get second infections.Even if the patients with muscle strain will get second infection with high possibility,the patients could take treatments ahead of time to prevent second infections.Without providing sufficient evidence,the hypothesis is not persuasive.
In the second place,the result of this study is not statistically reliable to support the hyperthsis.The arguer provides no information about the patients in these two groups.Commen sense informs us that the physical body,age,sexual and even psychology could influence the recuperation time of a patient.It is quite possible that the patients in the first group are all young,and patients in the second group are all in old age.Or perhaps the patients in the first group are all male,and another group are all female.So in this situation,the people in the first group will recover sooner.Without ruling out there factors,the result of this studay is not convincing to support this hyperthesis.
In the second place,the arguer provides no evidence about these two doctors.The expertise of a doctor also plays a significant role during the process of the recuperation for the patients.It is possible that Dr. Newland is an expert who in very good at cure the muscle strain,and during the treatment he could also use other physical treatments to help the patient recuperate.However, Dr. Alton in another group is a general physician who is not good at treat the diagnosis and he could not very help the patients get recover.Without consider this factors,it is unfairly to justify the effectiveness of antibiotics.
In the third place,the arguer unfairly assumes that the patients who get muscle strain will get the second infections easily.The arguer provides no evidence that the second infection is inevitable or the patients who have muscle strain will definitely get second infections.Even if the patients with muscle strain will get second infection with high possibility,the patients could take treatments ahead of time to prevent second infections.Without providing sufficient evidence,the hypothesis is not persuasive.
In sum,the recommendation is not persuasive and convincing as it stands.To strengthen the recommendation,the arguer needs to prove the patients with muscle strain are quite possible get second infection.In addition,the arguer needs more information to assure the reliability of that study.To evaluate the recommendation,the arguer also need to convince the effectiveness of the antibiotic and the expertise of these two doctors. |
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