江苏省赣榆县智贤中学高中英语 Unit4 Helping people around the world教案3 译林牛津版选修6.doc

module8 unit4: revision(iii) 编号：no: 教学目标1. encourage students to grasp the topic sentence of each paragraph. 2. students are expected to gain some knowledge about some famous art museums and painters and enhance their reading comprehension.3. develop students reading abilityhow to read a life story or biography.教学重点1 to recognize the kinds of the subjective mood in unreal conditional clauses .2.to grasp the usages of the other forms of the subjective .教学难点1. to recognize the kinds of the subjective mood in unreal conditional clauses .2.to grasp the usages of the other forms of the subjective .学情分析 教学媒体ppt bb教 学 过 程复 备 栏 step i introduction 虚拟语气用来表示说话人的主观愿望或假想，所说的是一个条件，不一定是事实，或与事实相反。条件句可分为两类，一类为真实条件句，一类为非真实条件句。非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气。虚拟语气在条件状语从句和结果状语从句中,表示与事实相反的条件和结果。if条件句中的谓语动词主句的谓语动词与现在的事实相反1. 行为动词用did 形式2. be动词用wereshould/wouldcould/might + 动词原形与过去的事实相反had + doneshould/wouldcould/might + have done与将来的事实相反1. 行为动词用did2. should + 动词原形3. were to + 动词原形should/wouldcould/might + 动词原形一. 混合条件句 有时，主句与从句的动作发生在不同的时间，主句从句谓语动词的虚拟语气形式因时间不同而不同，这种条件句叫做混合条件句。 if you had asked him yesterday, you would know what to do now. 如果你昨天问过他，今天就知道做什么了。（从句与过去事实相反，主句与现在事实相反。）二. 虚拟语气中的倒装句如果虚拟语气的条件从句谓语动词中含有were, had, could, should，有时可将if省去，而将条件从句的主语置于were, had, should, could 之后。had you invited us, we would have come to your party.were i you, i would do more practice after class.could she lend us a helping hand, she would do so.三、虚拟语气的几个句式：1. 表示命令或建议动词suggest, insist, propose, desire, demand, request, order, command 后的宾语从句中应使用虚拟 should +动词原形； should 不可用would 来替代; 主句所使用的动词时态不限。2. 虚拟语气也用于表语从句和主语从句中，表示间接的命令、要求、请求、建议、决定等，主句的主语通常是suggestion, proposal, request, order, idea 等。表语从句中的谓语动词是should +动词原型，should 可以省略。3.含蓄句式：but for/otherwise/or/without等引导短语相当于if 引导的条件状语从句，句子使用相应的动词形式。but for your help, we couldnt have succeeded.they wouldnt have reached the agreement so easily without that common ground.she wasnt feeling very well. otherwise she wouldnt have left the meeting so early.4. wish 和 if only后面的宾语从句的谓语动词应使用虚拟语气， 表示“可惜；.就好了； 悔不该； 但愿。”主句谓语从句谓语wish/if only现在时动词用过去时/be动词用were过去时动词用had done将来时动词用would do; should doi wish i were as tall as you. 我希望和你一样高。he wished he hadnt said that. 他希望他没讲那样的话。i wish it would rain tomorrow. 我希望明下雨就好了。5.would rather 后面的宾语从句的谓语动词应使用虚拟语气，表示“宁愿”。过去现在未来would rather thathad donediddid6. even if/even though, as if/as though 引导状语从句时，如表示与事实相反时用虚拟语气。step ii practice1).我不知道他的电话号码,否则