【題目】 We can have ________ bluer sky if we create _________less polluted world.

A. a; a B. a; the

C. the; a D. the; the

【答案】A

【解析】

試題分析:句意為:如果我們營(yíng)造一個(gè)沒(méi)有污染的環(huán)境,我們就可以擁有一個(gè)藍(lán)色的天空。a/an均可修飾單數(shù)可數(shù)名詞,表示泛指,相當(dāng)于one;a用于輔音發(fā)音開(kāi)頭的詞前, an用于元音發(fā)音開(kāi)頭的詞前。the表示特指說(shuō)話雙方都知道的人或物。根據(jù)語(yǔ)境可知,“藍(lán)色的天空”和“沒(méi)有污染的環(huán)境”均表示泛指;blue和less為輔音發(fā)音開(kāi)頭的詞,故應(yīng)選A。

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