Mary spent the whole weekend locked in her room ,preparing the coming examnation如何划分该句的成分

题目

Mary spent the whole weekend locked in her room ,preparing the coming examnation如何划分该句的成分
其中：“locked in her room”作什么成分?
Mary locked in her room spent the whole weekend ,preparing the coming examnation语序改成这样,locked in her room 做Mary的定语可以理解,但不是有“spend +时间+（in）doing sth”这个结构吗?doing难道不是补充说明前面的时间的吗?

答案

locked in her room 是状语,其实是Mary is locked in her room preparing the coming examnation是宾语,其实是Mary spent the whole weekend in preparing the coming examnation,只不过在中间插入了 locked in her ...