编辑点评: 研习GRE作文考试的优秀范文不仅可以学到有用的词汇和句子,更能从中学习逻辑的构建方式和作文框架的结构等内容,本文是GRE作文考试Issue类型的范文,希望对同学们的备考有所帮助。
As people grow older, an enzyme known as PEP increasingly breaks down the neuropeptide chemicals involved in learning and memory. But now, researchers have found compounds that prevent PEP from breaking neuropeptides apart. In tests, these compounds almost completely restored lost memory in rats. The use of these compounds should be extended to students who have poor memory and difficulty in concentrating-and therefore serious problems in school performance. Science finally has a solution for problems neither parents nor teachers could solve.
In this argument, the arguer states that researchers have found compounds that keep an enzyme known as PEP from breaking neuropeptides apart, which are known to be involved in learning and memory. The arguer states that tests have shown that these compounds almost completely restored lost memory in rats, and that therefore, these compounds should be administered to students with poor memory and difficulty in concentrating. This argument is unconvincing because it contains several critical flaws in logic.
First of all, the arguer states that as people grow older, PEP breaks down the neuropeptide chemicals that are involved in learning and memory. It is true that generally, as people get older, they tend to have more problems with learning and memory. However, there is no direct link mentioned between the breaking down of the neuropeptide chemicals and the loss of learning ability or memory. Additionally, the arguer mentions neuropeptide chemicals that are broken down by PEP. What the researchers have found is a compound that prevents neuropeptides from breaking apart. These are two different physical actions: the breaking down of neuropeptide chemicals as opposed to the breaking apart of the neuropeptides themselves. Furthermore, it is not stated which of these physical actions is involved with the loss of learning ability and memory. It is not explicitly stated that the breaking down of chemicals causes a loss in learning ability and memory, only that this happens as people grow older. It is also not expressly stated whether the breaking apart of the neuropeptides themselves causes memory loss or a lessened learning ability. Without showing a direct link between the effect of keeping the neuropeptides from breaking apart and a reduction in the loss of memory and learning ability, the efficacy of the compounds is called into question.
Secondly and most obviously, the compounds were only tested on rats. Rats may have a similar genetic structure to humans, but they are most certainly not the same as humans. There may be different causes for the learning and memory problems in rats as opposed to that of humans. The effect of the compounds on rats may also be very different from their effect on human beings. It is absurd in the extreme to advocate giving these compounds to students, even assuming that they would help the students with their studies, without conducting further studies assessing the compounds overall effects on humans. The argument fails on this particular fact if for no other reason.
Additionally, the arguer begins his or her argument by stating that as people grow older , PEP breaks down the neuropeptide chemicals involved in learning and memory. At the end of the argument, the arguer advocates extending the compounds that prevent PEP from breaking neuropeptides apart to students who have poor memory and difficulty in concentrating. Students are generally young, not older people. There is no evidence presented that shows what actually causes students to have a poor memory or difficulty in concentrating. Indeed, it is more likely that it is extracurricular activities or a lack of sleep that causes such problems in students, not a problem associated with aging. It is highly unlikely that even if the stated compounds could help prevent the memory loss and decreased learning ability associated with aging that it would have any benefits for students.
In summary, the arguer fails to convince with the argument as presented. To strengthen the argument, the arguer must show a direct link between the breaking apart of neuropeptides and loss of memory and learning ability. Additionally, he or she must show that students poor memory and difficulty in concentrating is a result of the same process, and that the researcher s compounds would have as beneficial an effect on humans as it seems to have on rats.
2014年12月大学英语六级写作试题考前冲刺范文(三)
英语六级作文题目及范文国外旅游
名师推荐:2014年12月英语四级写作高分模板(3)
最新2014年12月大学英语六级写作范文仿写练习(5)
英语写作关键句型72种(1)
名师推荐:2014年12月英语四级写作高分模板(4)
2014年12月英语六级写作冲刺作文练习范文:人口老龄化
英语六级作文
2014年12月英语六级写作冲刺作文练习范文:话剧
2014年12月英语六级名师最新预测作文题目及参考范文(10)
英语写作怎么得高分
2014年12月20日大学英语六级作文预测和仿写优秀范文(4)
How to Learn English Well
How Do I Learn English
2014年12月英语六级写作冲刺作文练习范文:大学生心理健康
最新2014年12月大学英语六级写作范文仿写练习(4)
大学英语六级考试必看经典范文:大学录取名人
2014年12月大学英语六级写作范文仿写(5)
2014年12月英语六级名师最新预测作文题目及参考范文(7)
最新2014年12月大学英语六级写作范文仿写练习(3)
英语写作的绝招和万能公式
六级高分作文的写作模式及经典范文(三)
英语写作3个基本点之统一性
世界杯32强的口号巴西最霸气
英语六级作文常用句型(下)
六级写作常用到的英语谚语500句(三)
六级作文范文Traveling Abroad
2014年12月英语六级名师最新预测作文题目及参考范文(2)
2014年12月英语六级写作冲刺作文练习范文:整容手术
2014年12月英语六级冲刺复习阶段写作专项训练及参考范文(1)
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |