(2013·高考新課標(biāo)全國卷Ⅰ)There’s no way of knowing why one man makes an important discovery________another man，also intelligent，fails.

A．since　　　　　B．if

C．as D．while

 

D

【解析】選D。本題考查從屬連詞和并列連詞的區(qū)別。句意：不清楚為什么一個(gè)人會有重大發(fā)現(xiàn)，而另外一個(gè)同樣聰明的人卻失敗了。根據(jù)句意斷定，該題的空格處需要填入一個(gè)并列聯(lián)詞。乍一看，這四個(gè)連詞似乎都是從屬連詞，都不能填入句中。殊不知，在實(shí)際的語言運(yùn)用過程中，while還具有并列連詞的屬性，表示“轉(zhuǎn)折和對比”，正好符合句式結(jié)構(gòu)和語意邏輯。故答案選D。其他三個(gè)選項(xiàng)都沒有這種屬性和功能，所以可以排除。

 

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