第一句是表语从句 语序是the hospital is where you were born ,is后面接表语,where引导的句子充当表语,即表语从句
第二句是定语从句 语序是this is the hospital where you were born 这个where是修饰hospital的 因为is后面已经有表语了 where就只能是解释说明修饰这个表语的 即定语从句