安徽省2012届高三英语一轮复习 语法部分 考点7 虚拟语气精品学案 北师大版

考点 7 虚拟语气1.主要考查的知识点： (1)在状语从句和名词性从句中虚拟语气的用法 (2)含蓄虚拟语气2.复习重点： (1)掌握虚拟语气的基本概念及用法。 (2)在条件句中省略 if 的虚拟语气。 (3)意义上不是虚拟语气，但必须使用虚拟语气的情况。3. 应对方法： 解题时，首先要确定题干句子表示的句意为真实的还是虚拟的，来决定是否该用虚拟语气。带有状语从句的复合句应重点看从句，根据从句句意所表达的信息来判断是否该用虚拟。虚拟语气确定后要明确是对现在、过去还是对将来的虚拟，从而确定虚拟语气的形式。 (1) If I had(have) time, I would go there. (2) If you had come earlier, you couldn't/wouldn't_have_missed(miss) the bus.(3) If it should_rain/were_to_rain(rain) tomorrow, the sports meet would be put off.(4) We got up early in order that we could catch the first bus. 1. 状语从句中的虚拟语气(5) We got up early for fear that we should miss the first bus.(6) We got up early lest that we should miss the first bus.(7) She speaks English as though she were a native of New York.(8) It seems as if he doesn't know her. 1. 状语从句中的虚拟语气虚拟语气的结构及用法：非真实的条件，常由 if 引导，主句和从句常用虚拟语气。1. 条件与现在事实相反， 从句谓语用一般过去时(be 多用 were)；主句谓语用 would / should / could/might＋动词原形，如：(1)。2. 条件与过去事实相反， 从句谓语用过去完成时 had done；主句谓语用 would / should /could /might＋have done，如：(2)。3. 条件与将来事实相反，从句谓语用 should do / were to do；主句谓语用 would / should / could / might＋动词原形，如：(3)。规则 1：目的状语从句1. so that/ in order that ＋从句： 从句：用 can /could / may / might ＋ 动词原形，如：(4)。2. for fear that/in case that ＋ 从句：从句用 should＋动词原形)“以防，万一”，如：(5)。用心 爱心 专心13. lest ＋从句：从句用 should＋ 动词原形，“以防万一”，如：(6)。规则 2：方式状语从句 as if/ as though ＋ 从句：从句的虚拟语气与 wish 后的宾语从句虚拟语气类似，如：(...