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本帖最后由 xingfuhbj 于 2010-7-17 15:50 编辑
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Argu题目
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53Thirteen 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.
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习作正文
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疯了疯了...都写第三遍了还超时...呜....
Grounding on a research of 25 infants and a follow-up study of them, the arguer come to the conclusion that the increased levels of melatonin(M) before birth cause shyness during infancy and this shyness continues into later life. However, both the research and the follow-up study have several questionable facets, and I’ll explain each of them in turn.
First and foremost, the arguer provides little information about the M to verify its influence on infants. We just know that M is a hormone known to affect some brain functions, and it will increase in autumn. But we can’t exactly know whose brain--the mother’s or the infant’s will be exactly suffered from M? If M mainly affects the brain of mother, then it may not contribute to the shyness of infant. And if it affects the brain of infant indeed, then what area of brain will M affect most?
The nerve system, or the sense organ, or else? Without a particular experiment which studies the sole effect of M, we can’t jump to the conclusion so hastily.
Secondly, the unscientific selection of experimental subjects lessens the credibility of the research. On one hand, 25 infants is a number too little to give strong support to the conclusion. Figures are convincing when they meet the statistic regularity, which occurs when the experimental subjects are large. For instance, mathematicians throw a coin over thousand times just to verify the mere fact that roughly half will come up heads and half tails. Then how could a research based on only 25 infants to be convince enough to verify the casual relationship between the M and the shyness? On the other hand, the research doesn’t assure the premise that all infants are almost at the same healthy condition. Thus there comes up a question that whether their brains, sense organs, and blood pressure or something else are in the same condition? We know that sensitive as infants are, little distinction can make big difference. For example, a higher temperature will make one infants shows more unusual signs than another infant.
Last but not the least, the absence of detail information about the follow-up study makes this study unconvincing. As we could assume, the family ambience of a child plays a pivot role in forming his/her characteristic. Usually, the children grow in a divorced family are inclined to be more negative than children grow in a normal family, thus the former ones are more possible to be shy, or to recognize themselves as shy. Besides, some unexpected accidents, such as a car accident a child once suffered may also influence his/her mental status a lor, and can turn a shine boy into a shy boy.
All in all, the argument would be more favorable if the arguer conduct some alternative researches and seek more detail information of the follow-up study. Otherwise, the argument could just be regard as a hypothesis.
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Issue题目
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88"Technologies not only influence but actually determine social customs and ethics."
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Since we have stepped into the Information age, technology, which means the science and the application of it, has entered into and became the great mass of our life. From small to large, behaviors to minds, local to global, technology do substantially influence us a lot. And there is no exception for social customs and ethics. But since such two things are the offspring of humanity, and were formulated during a considerable time -- hundreds of even thousands of years, it is not so easy for technologies to bridle them.
Admittedly, technologies play a vital role in changing our social customs and ethics. Take the aspect of social customs first. By making our lives more convenient, technologies have already altered the lifestyle of plenty people. For example, due to the electricity, the word "dark and silent" is not along with "night" any more. Now, night is even brighter and more clamorous than the day, and few people still sack out at 9 or 10. Theaters, bars, casinos are the most welcome recreational places. And with various vehicles, people now would prefer to take a trip instead of staying at home when having their limited holidays. And thanks to the mobile phone and the Internet, we have no longer need to spend several days waiting for a letter from the friends thousand miles away. In fact, now the Internet has already earns a nomination for the 2010 Noble Prize, for "helping advance dialogue, debate and consensus". From which we could recognize the irreplaceable impact of technologies.
What's more, technologies have even brought a revolution to our ethics. Hundreds of years ago, women, black people and farmers owned little respect and civil rights. Things changed during this time period. Now, a brilliant woman -- Angela Merkel has became the Chancellor of German, and an African American -- Barack Obama has became the president of US, and myriad farmers have became rich and have ascended to the middle and upper class. Besides, superstition has almost eliminated. When experiencing a deluge, an eclipse of the moon, or some supernatural phenomena, people no longer kill animals or even young boys and girls as the sacrifice. Through science and technologies, they realized that everything happens for a reason and know how to tackle with those cataclysms. They know that the eclipse of the moon is not because the dog above was too angry to eat the move, but for the reason that the earth moved to a position right between the moon and the sun, thus the moon, which was shining by reflecting the light from the sun, can't receive enough light and darkened.
However, no indication has showed that technologies were able to determine social customs and ethics, nor will any in the future. (This sentence seems has some grammar errors, but I don’t know how to revise it.) Actually, the movie "Bicentennial Man" has just corroborated the fact. In this movie, the leading character is a robot with human intelligence and feelings. Though he could be regarded as a masterpiece of the technology, he was not allowed to marry his lover, for violating the social customs ad ethics. This cost him two hundred years to transform into a real person from a robot, to be able to seek his true love. And in the real world, the technologies also can't curl the two things too. Take Chinese as an example, they have a tradition that a family should reunite during the Spring Festival. Such an unalterable customs has led to the annual most large scale collective migration in the world. No matter how far the modern conveyances have taken them away from home, they will manage to back home during the Spring Festival.
All in all, unless people are willing to change, technologies will still be the tools that can only affect our minds a lot, but incapable to determine them. Besides, we should never let technologies become the hierarch of our minds.
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