难易程度：★★★★
题目题材：保健
gre argument 142题目：
The article entitled 'Eating Iron' in last month's issue of Eating for Health reported that a recent study(1) found a correlation(2) between high levels of iron in the diet and an increased risk of heart disease. Further, it is well established that there is a link(3) between large amounts of red meat in the diet and heart disease, and red meat is high in iron. On the basis of the study and the well-established link between red meat and heart disease, we can conclude that the correlation between high iron levels and heart disease, then, is most probably a function of the correlation between red meat and heart disease(4,5).
提纲：
(1)The reliability of the result of the study is open to doubt.
(2)Merely a correlation between high levels of iron in the diet does not necessarily indicate a causal relationship between them.
(3)The author fails to provide evidence to substantiate the causal relationship between eating much red meat and heart disease.
(4)The author unfairly assumes that all people who have risk of heart disease would necessarily eating large amounts of red meat.
(5)High iron levels in the diet may result from many other factors, not only from red meat.
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。
>>点击查看GRE作文专题，阅读更多相关文章！
-
如何两个月拿下GRE？
每年都有无数小伙伴在纠结一个问题，两个月备考GRE到底够不够？事实上，全身心准备的话，完全够了。下面我们一起来看看如何备考，有哪些值得我们学习呢？
- GRE的文章源于哪里?
- GRE考前冲刺复习做到这5点提分最有效
- 2017年GRE考试报名开始啦！最新考试时间官方公布快来抢考位
- ETS官网查不了GRE分数怎么办？