GMAT語(yǔ)法核心技巧：排除法.

　　大家都知道GMAT語(yǔ)法難度不僅僅來(lái)源于題干，還來(lái)源于選項(xiàng)，對(duì)于選項(xiàng)，我們需要對(duì)GMAT語(yǔ)法題選項(xiàng)之間的差別的來(lái)獲取信心，為此澳際小編就為大家分享這篇GMAT語(yǔ)法核心技巧—排除法，希望可以幫到各位，文中觀點(diǎn)僅供參考。

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　　1. Acid rain and snow result from the chemical reactions between industrial emissions of sulfur dioxide and nitrogen oxideswith atmospheric water vapor to produce highly corrosive sulfuric and nitric acids.

　　(A)with atmospheric water vapor to produce highly corrosive sulfuric and nitric acids

　　(B)with atmospheric water vapor producing highly corrosive sulfuric and nitric acids

　　(C)and atmospheric water vapor which has produced highly corrosive sulfuric and nitric acids

　　(D)and atmospheric water vapor which have produced sulfuric and nitric acids which are highly corrosive

　　(E)and atmospheric water vapor to produce highly corrosive sulfuric and nitric acids

　　這道題目的考查對(duì)象為between…and…這一常見(jiàn)的固定搭配，用來(lái)連接兩個(gè)名詞或名詞短語(yǔ)，本題對(duì)考生的干擾主要在于sulfur dioxide和nitrogen oxides中間已經(jīng)出現(xiàn)了一個(gè)and，有些考生就想到GMAT語(yǔ)法要求句子簡(jiǎn)明，那么連用and肯定不合適，首先將C，D和E排除掉了。但是如果用 with，整句話邏輯關(guān)系不通，這個(gè)錯(cuò)誤當(dāng)然要比用詞重復(fù)嚴(yán)重得多，相比之下還是選擇使語(yǔ)意合乎邏輯的選項(xiàng)，正確答案為E。我們不選C和D的理由并不是由于句子不簡(jiǎn)潔，而是其邏輯關(guān)系有誤。

　　2. A majority of the international journalists surveyed view nuclear power stations as unsafe at present butthat they will，or could，be made sufficiently safe in the future.

　　(A)that they will，or could

　　(B)that they would，or could

　　(C)they will be or could

　　(D)think that they will be or could

　　(E)think the power stations would or could

　　題干中的but表轉(zhuǎn)折關(guān)系，在對(duì)選項(xiàng)進(jìn)行比較時(shí)A，B，C比較容易吸引考生眼球，因?yàn)樗鼈兣c劃線句相似，D和E憑空多出個(gè)think，讓人感覺(jué)難以接受，但是如果僅僅以這個(gè)理由進(jìn)行排除顯然是證據(jù)不足的。我們應(yīng)該先分析原句結(jié)構(gòu)，抓住主線，該句屬于平行結(jié)構(gòu)形式，D和E中的think與view在意思上形成對(duì)應(yīng)，所以我們不應(yīng)對(duì)這兩個(gè)答案帶有任何偏見(jiàn)，而應(yīng)一視同仁。根據(jù)GMAT語(yǔ)法原則，不能隨意省略成分，否則句意就會(huì)出現(xiàn)ambiguity。比較五個(gè)選項(xiàng)，只有D的句意表達(dá)最完整。而為什么要使用think一詞我們大可不必去追究，這只是無(wú)關(guān)痛癢的小問(wèn)題。

　　3.Unlike the acid smoke of cigarettes， pipe tobacco， cured by age-old methods， yields an alkaline smoketoo irritating to be drawn into the lungs.

　　(A) Unlike the acid smoke of cigarettes， pipe tobacco， cured by age-old methods， yields an alkaline smoke

　　(B) Unlike the acid smoke of cigarettes， pipe tobacco is cured by age-old methods， yielding an alkaline smoke

　　(C)Unlike cigarette tobacco， which yields an acid smoke， pipe tobacco， cured by age-old methods， yields an alkaline smoke

　　(D) Differing from cigarettes’ acid smoke， pipe tobacco’s alkaline smoke， cured by age-old methods， is

　　(E) The alkaline smoke of pipe tobacco differs from cigarettes’ acid smoke in that it is cured by age-old methods and is

　　解答本題時(shí)首先排除的是D答案，因?yàn)閐iffer from不能用在句首。本題的正確答案為C，但是很多考生的目光都是在C上暫作停留就轉(zhuǎn)向其他選項(xiàng)了。原因是C中連用了兩個(gè)yield，這樣的句子毫無(wú)美感可言，缺乏變化。可是千萬(wàn)別忘記考慮到句子重心問(wèn)題，其他幾個(gè)答案都是把句子重心搞錯(cuò)了，smoke和cigarette對(duì)應(yīng)有誤，這可是大禁忌，比起這個(gè)錯(cuò)誤來(lái)，用詞重復(fù)還算得了什么呢?

　　以上就是GMAT語(yǔ)法核心技巧：排除法的詳細(xì)內(nèi)容，考生可針對(duì)文中介紹的方法進(jìn)行有針對(duì)性的備考。更多資訊、資料盡在澳際GMAT頻道。最后，澳際GMAT頻道預(yù)祝大家在GMAT考試中取得好成績(jī)!