副词性的连接词和连词如何区别 比如这两个句子He was ill,so he didn't go to school .I have never been to Wales. Therefore, I don't know much about it.so是连词,可以连接两个简单句;而therefore是副词,准确的说是连接性副词,不能直接用来连接两个简单句,它可以放在句首,后面加逗号,也可以放在句中作为插入语.这就是最明显的区别
老外故意装怪!!!!