based on ten years of study,Dr.Johnson announced that everyone dreams every night,whether they

问题描述:

based on ten years of study,Dr.Johnson announced that everyone dreams every night,whether they
realize it or not.此处based 为什么不能换成basing

be based on是基于,在……基础上的意思,所以只用能based,作条件状语为什么做条件状语过去分词短评作状语在10年研究的基础上,也可以这样理(后面部分,Dr. Johnson announced --------)是建立在10年研究基础上的。