GRE作文入門和進階八

　　142.The article entitled Eating Iron in last months issue of Eating for Health reported that a recent study found a correlation 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 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.

　　析題：仔細讀過，發現這道題有點繞，很多考生曾經有過這樣的困惑：我沒有理解最后一句話的意思is most probably a function of the correlation between red meat and heart disease.是說high iron level于heart disease之間的關系是red meat與heart disease之間有關的結果那到底是認為high iron level和heart disease之間有沒有關系阿?再讀之下，我們會發現其實做了一個順接推論：red meat引起心臟病 red meat里面還有大量的鐵 高鐵引起心臟病，就是這么一個簡單的推論過程，關鍵認清誰推出誰，就要在審題時注意到關鍵的這么看似不經意卻被友好的ETS重復兩次的短語well established，也就是說大量紅肉與心臟病之間一定有聯系是不容質疑的論據，即本題論據是不容批駁的，關鍵問題在于由論據推導出結論的時候犯了Implicit causal claims和gratuitous assumptions，因而我們就可以以次展開攻擊。很多來自網上的文章和提綱在本題上顛倒了推導對象，把高鐵引起心臟病作為論據來推出red meat引起心臟病，結果導致文章失誤。下面讀者可通過以下范文檢驗一下該論證過程和思路：

　　142.The article entitled Eating Iron in last months issue of Eating for Health reported that a recent study found a correlation 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 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.

　　析題：仔細讀過，發現這道題有點繞，很多考生曾經有過這樣的困惑：我沒有理解最后一句話的意思is most probably a function of the correlation between red meat and heart disease.是說high iron level于heart disease之間的關系是red meat與heart disease之間有關的結果那到底是認為high iron level和heart disease之間有沒有關系阿?再讀之下，我們會發現其實做了一個順接推論：red meat引起心臟病 red meat里面還有大量的鐵 高鐵引起心臟病，就是這么一個簡單的推論過程，關鍵認清誰推出誰，就要在審題時注意到關鍵的這么看似不經意卻被友好的ETS重復兩次的短語well established，也就是說大量紅肉與心臟病之間一定有聯系是不容質疑的論據，即本題論據是不容批駁的，關鍵問題在于由論據推導出結論的時候犯了Implicit causal claims和gratuitous assumptions，因而我們就可以以次展開攻擊。很多來自網上的文章和提綱在本題上顛倒了推導對象，把高鐵引起心臟病作為論據來推出red meat引起心臟病，結果導致文章失誤。下面讀者可通過以下范文檢驗一下該論證過程和思路：