Question

【题目】--- 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.helpful
B.harmful
C.painful
D.careful

Answer 1

【答案】A
【解析】句意：——我不能忍受在冬天寒冷的河里游泳。——但是对你的健康有帮助。你知道我经常在不同的季节在河里游泳。helpful有帮助的；harmful有害的；painful痛苦的；careful小心的。根据后一句可知冬天游泳对健康有益，故选A。