这个问题应该是指if的条件状语从句如何改成and或者or的并列句。
如:If you work hard, you will pass the exam. 如果你努力,你就可以通过考试。把这句条件状语从句改成并列句可以是:Work hard, and you will pass the exam. 或者Work hard, or you won't pass the exam.