Experts say walking is one of the best ways for a person to _____ healthy.

　　A. preserve    B. stay    C. maintain    D. reserve

B


解析:

　本題譯文：專家們說(shuō)，步行是一個(gè)人保持健康的最好方法之一。preserve, stay, maintain, reserve這4個(gè)詞均有“保持”，“維持”之意。stay后可接形容詞作表語(yǔ)：The weather stayed wet for three days.其他3個(gè)詞均為及物動(dòng)詞。Preserve(=keep safe from decay, risk, harm, danger, going bad etc.)保存，保護(hù)：1)Policemen preserve order in the streets.(警察在街上維持秩序。) 2)We must preserve our natural resources.(我們必須保護(hù)自然資源。)3)You paint woodwork to preserve it.(你油漆木制品以防腐爛。)Maintain(=keep up)保持，維持，維修。Reserve(=keep for a special purpose; store)保留，預(yù)定：1)I'll reserve my opinion at his time,(這時(shí)我將保留我的看法。) 2)I'll phone up today and reserve a room.(我今天將打電話預(yù)定一個(gè)房間。)

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