how many things do you have in your room that you don't use that muchthat you don't use that much 在句子中做什么成份?是things的定语从句么

问题描述:

how many things do you have in your room that you don't use that much
that you don't use that much 在句子中做什么成份?是things的定语从句么

that you don‘t use 是定语从句,修饰things.
that much (意思是:那么多),是一个副词短语,作状语,修饰动词use.

是的,that 引导的定语从句,you don't use the things that much.