虚拟语气是通过谓语动词的特殊形式来表示,表示说话者的愿望、假设、怀疑、猜测或建议,而不表示客观存在。一、高考常考点(一)if引导的虚拟条件句【典例1】Why didn’t you tell me about your trouble last week?If you___________(tell)me,I could have helped.(2016年北京卷)解析:had told。根据主句谓语“could have helped”可以判断此句表示与过去的事实相反,所以从句谓语用过去完成时。 The subjunctive mood is expressed in a special form of predicate verb, which represents the speaker’s wishes, assumptions, doubts, guesses, or suggestions, not the objective existence. First, the college entrance examination often test points (a) if the guidance of the virtual conditions [Example 1] Why did not you tell me about your trouble last week? If you ___________ (tell) me, I could have helped. Resolution: had told. According to the main predicate “could have helped ” can be judged that the sentence is contrary to the past, so the predicate used in the past.