答案:[答案] C[长难句解读] When he rushed home from school one day and threw himself into his mother’s arms,she sighed,knowing that his life was to be misfortunate. When he...arms是一个时间状语从句,主句是she sighed,knowing是现在分词作状语,表示原因,后面又跟了一个宾语从句,不定式短语to be misfortunate作表语,表示他的人生注定不幸。