专业四级考试-语法专项2020/12/10 1五大高频考点n 虚拟语气n 从句n 时态、语态和主谓一致n 非谓语动词n 倒装、省略、比较结构和反意疑问句2020/12/102虚拟语气一、虚拟条件句1. If条件句中的虚拟语气假设类型 条件从句谓语动词形式 主句谓语动词形式与现在事实相反动词过去式（be用were）should/would/could/might+动词原形与过去事实相反had+过去分词 should/would/could/might+have+过去分词与将来事实相反动词过去式或（should）+动词原形，were to+动词原形should/would/could/might+动词原形2020/12/103虚拟语气n 例1If there were no subjunctive mood, English _ much easier to learn. (真题2009）A. could have been B. would beB. C. will be D. would have been2020/12/104虚拟语气2. 省略if的虚拟条件句的用法 在虚拟条件句中，
