GRE閱讀中最為重要也是最讓中國考生頭疼的當(dāng)屬GRE邏輯推理題。此類題目雖然對考生的閱讀能力要求不高，但是對于考生的邏輯推理能力考察最為突出。因為只有考生領(lǐng)會到其中的意思，并且了解文章的推理和考察的問題方法時，考生才可以從容的應(yīng)對考試。GRE邏輯考試所涵蓋的內(nèi)容同GRE閱讀一樣，范圍很廣且不需要考生對專業(yè)領(lǐng)域知識的了解，因此考生不能借助自己所熟悉的學(xué)科知識來化解問題。因此對GRE邏輯題型的了解尤為重要。GRE邏輯題型總計有大致三種題型：歸納經(jīng)典問題、演繹經(jīng)典問題、解釋經(jīng)典問題。

作為GRE邏輯題型中的歸納法，通常是以通過以下考題形式進行考察的：

It can be concluded from the statements above that.

Which one of the following statements most accurately expresses the author’s main point?

Which one of the following statements CANNOT be true?

Which one of the following inferences can be most reliably drawn from the passage above?

The passage as a whole is structured to lead to which one of the following conclusions?

Which one of the following is the best statement of the primary point of the passage?

Each of the following can be inferred from his argument EXCEPT.

Which one of the following claims is central to the author’s argument?

If the statements above are true，then which one of the following must also be true?

對于GRE閱讀中的歸納考題，通常是對文章中已經(jīng)提到過的內(nèi)容或者可以從文章中可以推導(dǎo)出來內(nèi)容進行考察。歸結(jié)起來，破解GRE邏輯之歸納題型，最好的辦法是從考題選項入手。在此總結(jié)出有關(guān)GRE邏輯考題常出錯的方向供大家參照：1.觀點相反的選項;2.范圍過大的選項;3.不是比較的否命題;4.文中沒有的比較;5.無中生有;6.大眾權(quán)威。

People whose bodies cannot produce the substance cytochrome P450 are three times as likely to develop Parkinson's disease, a disease that affects the brain, as are people whose bodies do produce this substance. Since cytochrome P450 protects the brain from toxic chemicals, toxic chemicals probably play a role in the development of Parkinson's disease.

Which of the following, if true, most strongly supports the argument?

(A)It will soon be possible for cytochrome P450 to be synthesized for the treatment of people whose bodies cannot produce this substance.

(B)Many people whose bodies are unable to produce cytochrome P450 lack the ability to produce certain other substances as well.

(C)Cytochrome P450 has no effect on the brain other than to protect it from toxic chemicals.

(D)People with Parkinson's disease often exhibit a marked lessening in the severity of their symptoms when they are treated with dopamine, a chemical produced naturally in the brain.

(E)Many people with Parkinson's disease have the ability to produce cytochrome P450 naturally.

解析： 那些身體里不能產(chǎn)生細胞色素P450這種物質(zhì)的人得帕金森癥的可能性是正常人的三倍，帕金森癥是一種能影響大腦的疾病。因為細胞色素P450保護大腦不受有毒化學(xué)物質(zhì)傷害，因此有毒化學(xué)物質(zhì)很可能在帕金森癥的引發(fā)中起到作用。

問題：下面哪一個最能支撐觀點?

A.很快P450能夠在治療那些不能身體內(nèi)不能產(chǎn)生這種物質(zhì)的人時被合成。

B.許多體內(nèi)不能產(chǎn)生P450的人同樣也不能產(chǎn)生其他的幾種物質(zhì)。

C.P450在大腦內(nèi)除了保護不受有毒化學(xué)物質(zhì)傷害外沒有其他影響

D.得了帕金森癥的人在處理多巴胺的時候會明顯地表現(xiàn)出一種癥狀程度上的減輕，多巴胺是大腦里自然產(chǎn)生的一種化學(xué)物質(zhì)。

E.許多得了帕金森癥的人能夠自然地產(chǎn)生P450.

根據(jù)以上總結(jié)出來的GRE邏輯歸納題的選項出錯方向，那么選項A屬于無中生有型，文中P450并未應(yīng)用于醫(yī)療，B同理，D是大眾權(quán)威的知識，但是并不對觀點起作用。E則是對文中觀點的反駁，對此經(jīng)過分析，得出最終正確答案C。