English grammar： Noun Clauses判断下列是什么从句： 1. Where he was born was unknown to us. 2. I dont know where he was born. 3. The unknown was where he was born.4. I dont know the fact where he was born. 5. He worked where he was born. 6. He worked in the city where he was born.I dont know where he was born. He worked where he was born. 辨析：宾语从句VS状语从句I dont know the fact where he was born. He worked in the city where he was born. 辨析：定语从句VS同位语从句复合句、主句、从句的概念 复合句又称主从复合句，由一个主句 和一个或一个以上的从句构成，主句 为句子的主体，从句不能独立，只能
