The old man is in good health except that his sight___day by day.A.has lostB.was lost C.is being lostD.will lose我需要科学的解释,不要仅为答案喔,
问题描述：
The old man is in good health except that his sight___day by day.
A.has lostB.was lost C.is being lostD.will lose我需要科学的解释,不要仅为答案喔,
答
C强调渐渐地过程
答
C.is being lost
因为这里day by day强调了是一天天视力下降的过程
译文:这个老人除了视力一天天下降外，身体还是很健康的。
由于前面半个句子里The old man is in good health时态用的现在时态，直接排除B.was lost
A.has lost 已经失去视力的意思 不符合
D.will lose将会失去视力
答
第一,时态.day by day 一天天地,强调逐渐的过程,进行时可用来表示近段时间内的变化如：it is becoming colder and colder. 天越来越冷了.而完成时强调的是结果或影响,所以A 不选；根据主句中 is 判断是讲述现在的事...