【題目】The _____ population may be the greatest challenge of the world today.

A. increaseB. increasedC. increasingD. increases

【答案】C

【解析】

句意:不斷增長的人口可能是當(dāng)今世界最大的挑戰(zhàn)。

本詞修飾名詞population可知填形容詞;increase:增加,動(dòng)詞,三單形式是increases;increasedincrease的過去式,也可做形容詞講,意思是“增強(qiáng)的,增加的”,指已經(jīng)發(fā)生了的;increasing意思是“正在增加的,不斷增長的”,形容詞。本句指“正在增長的”人口,可知選C。

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