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A 53
Thirteen years ago, researchers studied a group of 25 infants who showed signs of mild distress when exposed to unfamiliar stimuli such as an unusual odor or a tape recording of an unknown voice. They discovered that these infants were more likely than other infants to have been conceived in early autumn, a time when their mothers' production of melatonin — a hormone known to affect some brain functions — would naturally increase in response to decreased daylight. In a follow-up study conducted earlier this year, more than half of these children — now teenagers — who had shown signs of distress identified themselves as shy. Clearly, increased levels of melatonin before birth cause shyness during infancy and this shyness continues into later life.
Words: 528
In this argument, the arguer advocates that shyness during infancy is caused by increased levels of melatonin before birth and this shyness keeps on into later life. To support the conclusions, the arguer provides evidences of a research, which was lasting thirteen years in twenty-five infants. The research found out that the infants who got birth in early autumn, a time when their mothers would product increased melatonin because of lacking for daylight, showed signs of mild distress when exposed to unfamiliar stimuli. Furthermore, after follow-up study, more than half of these children suffered from shyness. ( 这里差了一句:it seems that the argu is conving,然后再加however)However, a careful exanimation of this argument would reveal how groundless the conclusions are.
The major problem with this argument is that the conclusion of the research dose not be based on a large amount of experiments. As we all know, scientific study is strict and needs testing over and over again. (这里不是test次数的问题 而是test样本数多少的问题)Only a tiny number of samples cannot represent the general situation. For the supporting reason, one needs look no further in a poll concerning whether universities play constraints on school seats to improve education quality. If there are one thousand people take part in the poll, but only one percent of them give feedback, can the result have the representative over the whole view? Since the attitude from a small group of people is narrow and limited but(AND) not general, no matter what the conclusion will be, the one percent cannot stand for the whole. It is also the same to the research on twenty-five infants. Unless the research provides substantial evidence regarding the relation between melatonin and shyness, the conclusion that melatonin can cause shyness and the effect is unfounded. 样本太少
Another problem that wakens the logic of this argument is that the shyness continues into future life because more than half of the twenty-five children showed shyness after thirteen years. After a long period of time, children would come into contact with different people and large quantity of new information. Given that the chemical substances-melatonin-is the reason in early(去掉early infancy就是early of life) infancy, there are still many other causes for shyness, such as discrimination and neglection by parents. Summarizing that shyness continues into late life but only based on that melatonin may cause distress is logically unacceptable.
Before I come to my conclusion, it is necessary to point out another flaw that undermines the argument. Children get into shyness in early times do not mean they will suffer from it in future. When Newton was in his childhood, he was clumsy and did not do well in study. Let us imagine something, if the theory mentioned before is established, does it mean Newton will be a clumsy guy in his later life? So the conclusion about(that) shyness will last in later life is groundless
这一段主要谈的是从小看到老的问题 语言上问题不大,但是似乎在逻辑上有重复之嫌,楼主前半段重点谈m物质的影响时效,后半段谈到了儿时的性格不一定会延续到以后的人生,两部分没能做到递进,而只是彼此重复
In sum, the conclusion reached in the argument is not persuasive as the evidence cited in the analysis does not lend strong support to what the arguer claims. To make the argument more convincing, the arguer should provide more information concerning the melatonin really has connection to shyness and the signs of distress caused by shyness will show in infants' future life. Otherwise, the argument is logically unacceptable.
总体而言,楼主本文非常不错。指明了错误并且做了深度辩驳。句式也比较灵活多变。
不足之处是还需进一步体现逻辑的递进与层次感。
相信楼主再联系一段时间一定能取得更大的成绩,加油! |
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