虚拟6171836875.ppt

 虚 拟 语 气 真实条件句 真实条件句用于陈述语气，假设的情况可能发生，其中 if 是如果的意思。　 　时态关系 句型： 条件从句　　　 主句　　 一般现在时　　 shall/will + 动词原形 If he comes, he will bring his violin. If you leave now, you will never regret it. 虚拟条件句的倒装  虚拟条件句的从句部分如果含有were, should, 或had, 可将if省略，再把were, should或had 移到从句句首，实行倒装。　 Were they here now, they could help us.　=If they were here now, they could help us. Had you come earlier, you would have met him　=If you had come earlier, you would have met him. 　Should it rain, the crops would be saved.　=Were it to rain, the crops would be saved. 混合虚拟语气 主句与从句的动作发生在不同的时间，这时主，从句谓语动词的虚拟语气形式因时间不同而不同，这叫做混合条件句。 E.g. If you had asked him yesterday, you would know what to do now. If I hadn’t stood under the ladder to catch you when you fell, you _________ now. A) wouldn’t be smiling B) couldn’t have smiled C) won’t smile D) didn’t smile 注：混合虚拟语气 首先判断是否是虚拟语气；如果是虚拟语气的话，见到now就是混合虚拟语气 Exercises ________ before we depart the day after tomorrow, we should have a wonderful dinner party. A) Had they arrived B) Would they arrive C) Were they arriving D) Were they to arrive 注：条件部分省略了if 用了倒装。 Jean doesn’t want to work right away because she thinks that if she _________ a job she probably wouldn’t be able to see her friends very often. A) has to get B) were to get C) had got D) could have got _________ right now, she would get there on Sunday. A) Would she leave B) If she leaves C) Were she to leave D) If she had left We didn’t know his telephone number, otherwise we _________ him. A) had telephoned B) must have telephoned C) would telephon D) would have telephoned 用在含蓄条件句中 这种用法也常见于or, or else, otherwise和but后面的分句中。例如： 1）Without music, the world would be a dull place. 2）But for your help, we would have failed. 3）She would have gone with us, but she didn’t have time. 4）He must have had an accident, or he would have been here then. In your position I would kill myself. = If I were in your position... 用在wish后的宾语从句中 这种句子主要表示愿