高三英语二轮复习 语法专项七 情态动词和虚拟语气（二）教学案

1、装订线情态动词和虚拟语气（二）课题 ：情态动词和虚拟语气（二）教学目标：了解情态动词和虚拟语气高考考点并掌握解题技巧.教学重难点：了解情态动词和虚拟语气高考考点并掌握解题技巧.教学过程集体备课部分（学生活动部分）个性备课部分/学生记录Task 1【自主学习】检查晨读内容Task 2【知识梳理】考点5 条件句及名词性从句中的虚拟语气【典例导引】(2015江苏高考)It might have saved me some trouble _ the schedule. A. did I knowB. have I known C. do I knowD. had I known 【答题技巧】1. 非

2、真实条件句表示的是假设或实际可能性不大的情况。从句的谓语动词主句的谓语动词与现在事实相反动词用一般过去式(be动词一般用were)would/should/could/might+动词原形与过去事实相反had donewould/should/could/might have done与将来事实相反动词用一般过去式; were to/should+动词原形would/should/could/might+动词原形注意: 虚拟条件句中, 省略if, 条件句中将were, had(助动词)或should移至主语之前。例如: Were I you, I would study hard now. 如

3、果我是你的话, 我现在就会努力学习。2. 宾语从句中的虚拟语气。(1)在“一想要(desire)一宁愿(prefer)一坚持(insist)二命令(order, command)三建议(advise, suggest, propose/recommend)四要求(demand, require, request, ask)”后加的宾语从句中, 无论主句谓语动词为何种时态, 从句的谓语动词都用“should + do”, should可以省略。(2)动词wish后接宾语从句时, 从句谓语要用虚拟语气。若要表示与现在事实相反的愿望, 从句谓语用一般过去时或过去进行时(同样be动词换成were);

4、若表示与过去相反的愿望, 从句谓语用过去完成时; 若表示将来没有把握或不太可能实现的愿望, 用would(could)+动词原形。(3)在urge, arrange, direct, intend后的宾语从句中, 从句谓语由“should+动词原形”构成, 其中的should可以省略。3. 主语从句中的虚拟语气。(1)表情绪、观点的形容词或名词, 如necessary, important, impossible, natural, strange等用于句型: It is. . . that +主语从句时, 从句的谓语动词常用(should+)动词原形。(2)在suggestion, prop

5、osal, order, plan, idea, request, advice等名词后的表语从句和同位语从句中要用虚拟语气, 谓语动词用(should+)动词原形。4. 表语从句和同位语从句中的虚拟语气。在表示建议、命令、要求的名词后的表语从句或同位语从句中的谓语动词要用(should+)动词原形。常见名词有: advice, desire, request, demand, proposal, suggestion, preference, requirement, order等。考点6 特殊句式中的虚拟语气【典例导引】(2015重庆高考)Without his wartime exper

6、iences, Hemingway_his famous novel A Farewell to Arms. A. didnt writeB. hadnt written C. wouldnt writeD. wouldnt have written集体备课部分（学生活动部分）个性备课部分/学生记录装订线【答题技巧】1. 虚拟条件句中, 如果主句和条件从句的谓语动作不是同时发生时, 虚拟语气的形式应作相应的调整。这种条件句叫错综条件句。(1)从句的动作与过去事实相反, 而主句的动作与正在发生的事实相反。If they had informed us, we would not come her

7、e now. (2)从句的动作与现在事实相反, 而主句的动作与过去事实相反。If I were you, I wouldnt have missed the film last night. 2. 非真实条件句中的条件有时不表达出来, 只暗含在副词、介词短语、上下文或用其他方式表示出来, 这种句子叫含蓄条件句。在多数情况下, 条件会暗含在短语中, 如without. . . , but for. . . (要不是因为), or, otherwise, but等。3. would rather所接的从句中的谓语动词用一般过去时(对现在虚拟)或者过去完成时(对过去虚拟)。4. It is(high

8、)time(that). . . 句型中谓语动词用一般过去时或should+动词原形, should不可省略。5. if only后面的谓语动词常用一般过去时(对现在虚拟)、过去完成时(对过去虚拟)与过去将来时(对将来虚拟), 表示强烈的愿望。6. as if引导的状语从句中谓语动词用一般过去时(对现在的虚拟)或过去完成时(对过去的虚拟), 或用would/could/might+动词原形(对将来的虚拟)。7. 目的状语从句中的虚拟语气。(1)在for fear that, in case, lest引导的从句中, 若用虚拟语气时, 从句谓语为: (should+)do, 并且should能省略。She examined the door again for fear that a thief (should) come in. (2)在so that/in order that所引导的目的状语从句中, 从句中的谓语为: can/could/may/might/will/would/should +do。