浅谈定语从句

[注2]非限制性定语从句在口语里很少用，尤其是在对话里，经常是采用简单句或并列句。例如：“I have a brother, who is a doctor.”这句话，在口语里总是说：“I have a brother; he is a doctor.”或说：“I have a brother, and he is a doctor.”