表示原因时，since, for, because, as, now that 中哪些既可以接名词（短语），又可以接从句？

Question

三个小疑问：
1，对于同一个引导词（如 as），它分别接短语或从句时词性一样吗？
2，其中哪些只能接名词（短语）？
3，其中哪些只能接从句？

Answer 1

回答：1. 从属连词as（因为）可以引导原因状语从句，但它作介词时，它的意思是“作为”。 例如：
As he was ill yesterday, he didn't come to school.
We treat her as our daughter.
2. for 表示 原因时，既可以接名词（短语），也可以接句子（for被视为并列连词，置于句中）。例如：
He scolded me for my coming late.
He doesn't get any schooling, for his family is very poor.
3. since（因为）可以引导原因状语从句，但它作介词接名词时表示“自从”的意思。例如：
Tom must be out since the light in his room is not on.
I haven't seen him since 2018.
4. because 和now that均可引导原因状语从句，但不能作为介词来用。because of是介词短语，可以后接名词。例如：
Because / Now that his family was poor , he often got hungry.
Because of stealing things he often got beaten.追问

您好，谢谢您的耐心解答。
但关于“for”的词性定义问题， 您好像没有说全。是不是接名词（短语）表原因时为介词，接句子表原因时为连词？

追答

是的。