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虚拟语气SubjunctiveMood(I)chenliyunGRAMMER语法教材与学情分析学生在初中和高中已学过陈述语气与祈使语气也接触过虚拟语气，对suggest，demand,insist的虚拟用法比较熟悉，对if,wish,woudrather,it'shightimethat也曾偶见，所以本节课教学内容设定为两个方面:一整体归纳虚拟语气的语法规则二突破含蓄条件句和混合虚拟语气的难点。知识目标：1理解虚拟语气的概念2记住虚拟语气的谓语形式3能准确运用各种虚拟句能力目标：自主学习能力，归纳总结能力情感目标：合作，探讨，互助教学重点：各种类型的虚拟语气的归纳教学难点：含蓄条件句和混合时态的虚拟语气教法：讲授法，练习法，情景教学法。学法指导：结合例句理解归纳语法规则，从练习中发现含蓄条件句和混合时态虚拟语句，从笔记整理中完善虚拟语气系统知识，找出规律以便记忆。IfIwereabird,Iwouldflyto....一.设立情景，引入概念2'Iwisheverydayweremybirthday.虚拟语气的概念(TheSubjunctiveMood)表示说话人所说的话不是事实,而是一种假设,愿望,怀疑或推测。虚拟语气主要用于if条件状语从句,也可用于名词性从句等。二.自学归纳，先学后教10'学生自读课本第86,87页的虚拟语气，尝试用用自己的方式归纳。1.虚拟语气在if条件状语从句中的用法条件从句从句谓语形式主句谓语形式与现在事实相反与过去事实相反与将来事实相反动词过去式(或were)should/would/could/might+动词原形had+过去分词should/would/could/might+have+过去分词should/would/could/might+动词原形1.should+动词原形2.动词过去式3.wereto+动词原形2.wish引导的宾语从句中的虚拟语气与现在事实相反与过去事实相反与将来事实相反过去时(were)had+过去分词would/could/might+动词原形Hewishedhe______________________insuchaffairs.(involve)IwishI______abird.(be)hadneverbeeninvolvedwere以asif,asthough后接从句如果表示非真实情况则应该用虚拟语气,其谓语动词与wish后面宾语从句中谓语动词的虚拟式相同。如:Thelittleboyknowssomanythingsasifhewasaman.Heactedasusualasthoughnothinghadhappene3.asif,asthough引导的从句4.由ifonly(要是……,那该多好啊!)引导的惊叹句。IfonlyIhadpassedthetest！Ifonlyitstoppedraining！5.表示要求,命令,建议的虚拟语气一个坚持______________两个命令_______________三个建议________________________四个要求_____________________________这些动词后面的宾语从句要使用虚拟语气用法。从句中的动词使用should+动词原形,或者将should省略。Thedoctorsuggestedthathe(should)trytolosehisweight.Heinsistedthatwe(should)tellhimthenews.insistorder,commandadvise,suggest,proposedemand,require,request,desireIwouldratheryoucouldteachmeagain.Iwouldrather_____________________.我宁愿他们明天来。Themanagerwouldratherthathissecretary__________________________________.经理宁愿他的秘书代替他去开会。6、wouldrather后的宾语从句wouldratherthat与现在事实相反过去时与过去事实相反过去完成时与将来事实相反过去时theycametomorrowwenttothemeetinginsteadofhim7.Itis(high)timethatItis(high)timethat后面的从句谓语动词要用过去式或用should加动词原形,但should不可省略。Itistimethatthechildrenwenttobed.Itishightimethatthechildrenshouldgotobed.8.It’snecessary/strange/natural/important/pity/...+that从句中(should)+动词原形Itisstrangethat_____________________.他居然会这样说,真是奇怪。he(should)sayso难点一：含蓄条件句一些介词短语,如:butfor,without,otherwise,inthatcase表含蓄的条件,这时主句要用虚拟语气。Withoutyourhelp(Ifwehadn'thadyourhelp）,wecouldnothavemadesuchrapidprogress.Hecouldn'thavearrived,otherwise(ifhehadarrived)hewouldhaveinformedme.三.讲练结合，突破难点6'主句与从句的动作发生在不同的时间,这时主从句位于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。Ifyouhadaskedhimyesterday,youwouldknowwhattodonow.Ifshecouldsing,Iwouldhaveinv...