定语位置口诀： 前置定语在句首， 后置定语在句末， 中间定语有两种， 状语在句中间， 宾语从句在后。

实例： The book written by me is very popular. （前置定语） The book which I wrote is very popular. （后置定语） The book, written by me, is very popular. （状语） The book that I wrote is very popular. （宾语从句）