中考英语重要短语的用法及区别：sometime; sometimes; some time; some times
sometime是副词，可与过去时或将来时连用，表示（在过去）某个时候或（在将来）某个时候。如： I saw him sometime in May.
some time多数情况下作名词短语，意为一些时间；一些时候；它还可以作副词词组，用来表示一个未肯定的时刻，此时它可与sometime互换。如： Ill be away for some time.
sometimes是一个表示时间频率的副词，意为有时候。如：Sometimes I help my mother with the housework.
some times是几次、几倍之意。如：They have been there several times.