美国GRE出国考试写作:美国GRE出国考试作文范例14(2)

　　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.

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　　参考译文

　　[题目]

　　随着人们日渐衰老，一种被称为PEP的酶会不断地分解学习与记忆过程中所涉及到的神经肽化学物。但现在，研究人员已发现了可阻止PEP致使神经肽分裂的化合物。在测试中，这些化合物几乎在老鼠身上能完全恢复缺失的记忆。这些化合物的运用应该也推广到记忆力衰弱或专注力有困难的学生身上，不然将会造成学业表现上的严重问题。科学终于解决了那些令家长和老师束手无策的问题。