that在此句中作什么成分Is there anything that you want to know?

问题描述:

that在此句中作什么成分
Is there anything that you want to know?

定语从句引导词~不充当句子成分,相当于结构助词~

定语从句的引导词

作关系代词,在定语从句中充当宾语,就是you want to know anything

that 引导定语从句
在从句you want to know中作know的宾语

引导以anything做先行词的定语从句,并在从句中作宾语.