I put the book on the desk.句中的on the desk做什么成分,

问题描述:

I put the book on the desk.句中的on the desk做什么成分,

做状语的,原句直译:我(主语)放(谓语动词)书(宾语)在书桌上((地点)状语)。

状语,I主语,put谓语,the book 宾语.on the desk 地点状语.
如果是I put the book on the desk yesterday.那 on the desk 是地点状语,yesterday是时间状语