难易程度：★★★
题目题材：生命科学
gre argument 160题目：
As people grow older, an enzyme known as PEP increasingly breaks down the neuropeptide chemicals involved in learning and memory(1). But now, researchers have found compounds that prevent PEP from breaking neuropeptides apart. In tests, these compounds almost completely restored lost memory in rats(2). The use of these compounds should be extended to students(3,4) who have poor memory and difficulty in concentrating(5,6)—and therefore serious problems(7) in school performance(8). Science finally has a solution for problems neither parents nor teachers could solve.
提纲：
(1)The author fails to illustrate that it is the breakdown of neuropeptide that results in lost memory.
(2)The effect of the compound on rat memory might not necessarily take place on humans.
(3)The author fails to consider if the compound has any side effect.
(4)The author fails to prove that the breakdown of the neuropeptide will also occur among young students.
(5)The author unfairly assumes that it is the breakdown of neuropeptide that results in poor memory and difficulty in concentrating among young students.
(6)Difficulty in concentrating does not necessarily have any relation with poor memory, thus the assumption that the compound will also resolve the problem of concentrating is unwarranted.
(7)Students’ problems in school performance may result from various causes, thus using the compound alone might not sufficiently resolve these problems, even if the compound does have significant effect on memory.
(8)The author ignores other better solutions to address problems in school performance.
注：题目中括号里的数字表明这句话体现的是提纲中第几号缺陷。
无论是gre issue还是gre argument，考生都应该养成写提纲的习惯。这种提纲式的gre写作练习可以帮助考生锻炼写作的逻辑性，而gre写作高分最重要的得分依据就是作文的逻辑性要强。希望大家都能写出好作文。
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