A独立主格结构.由于分词的逻辑主语与主句主语不统一,故使用独立主格结构.The day being hot=Because the day was hot,如分词的逻辑主语与主句主语一致,就用分词词组作状语.如：Having finished his homework, the bo...那B项怎么用?如分词的逻辑主语与主句主语一致，就用分词词组作状语。如：Having finished his homework, the boy went home.Lying on the grass, the boy was thinking about the problem.你的句子很难改。