【題目】— I can’t stand swimming in cold rivers in winter.

— But it’s ______ for your health. You know I often swim in rivers in different seasons.

A.painfulB.harmfulC.helpfulD.careful

【答案】C

【解析】

句意：——冬天我受不了在寒冷的河里游泳。——但這對你的健康有幫助。你知道我經(jīng)常在不同的季節(jié)在河里游泳。

考查形容詞辨析。painful痛苦的；harmful有害的；helpful有幫助的；careful小心的；根據(jù)常識可知游泳有助于身體健康；故選C。

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