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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,高考英语语法完全讲解,虚拟语气,高考英语语法完全讲解,1,在if引导的非真实条件句中的运用,在if引导的非真实条件句中的运用,2,“年、月、日”的认识说课稿件,一、说教材,九年义务教育小学数学第六册第三章“年、月、日”的第一课时。,2、教材分析,时间单位是较为抽象的计算单位。小学在前面已经掌握了小时、分、秒,并在实际生活中积累了年、月、日方面的感性经验,有关年、月、日方面的知识,也越来越多地出现在他们的生活和学习内容中,有了形成较长时间观念的基础。本单元是在此基础上向学生介绍有关年、月、日等时间单位方面知识的。本课是让学生借助观察年历来认识时间单位年、月、日的,然后介绍平年、闰年的判断方法,以及拳头记忆法和大月歌诀记忆法,最后是算出平年、闰年全年的天数。,3、教学重点、难点:,年、月都是较大的时间单位,让学生建立时间单位的观念和掌握单位间的进率是教学的重点。掌握平年、闰年的判断方法是教学难点。,关于练习题的编排,编者是按照新授内容的顺序安排的,形成多样。第1题是先练习了年、月、日之间的进率,再说出平年和闰年的天数;第,二、,三、四题是让学生灵活运用所学的知识来解决问题,提高了学生解答问题的能力。,4、教学目标:,根据本节课的重、难点和内容的特点,我制定了以下四条教学目标:,(1)能够说出年、月、日之间的关系,能阅,“年、月、日”的认识说课稿件,3,使用虚拟条件句时要特别注意以下几点,使用虚拟条件句时要特别注意以下几点,4,1、错综时间条件句,当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时，被称为“错综时间条件句”，动词的形式要根据它所表示的时间作出相应的调整。,If you had followed my advice just now,you would be better now.,If it had rained last night,the ground would be wet now.,1、错综时间条件句,5,2、if省略句,当条件状语从句中谓语含有were,had,should时，可以省略if，将were,had,should提到从句句首，变为倒装句式。,If I were at school again,I would study harder.,Were I at school again,I would study harder.,If you had come earlier,you would have caught the bus.,Had you come earlier,you would have caught the bus.,If it should rain tomorrow,we would not go climbing.,Should it rain tomorrow,we should not go climbing.,2、if省略句,6,3、含蓄条件句,有时候为了表达的需要，在虚拟条件句中并不是总会出现if引导的条件句，而是通过其它手段来代替条件句，常见有with,without,or,otherwise,but,but for,but that等。,What would you do with a million dollars?(=If you had a million dollars),Without your help,we couldnt have finished the work ahead of time.,=But for your help,.,=If it hadnt been for your help,.,I was ill that day.Otherwise,I would have taken part in the sports meeting.,=If I hadnt been ill that day,I would have taken part in the sports meeting.,I should have given you more help,but I was too busy.,=If I hadnt been too busy,I should have given you more help.,3、含蓄条件句,7,虚拟语气在名词性从句中的运用,虚拟语气在名词性从句中的运用,8,1,、,wish后的宾语从句一般用虚拟语气，表示一种不可能实现的愿望。从句的谓语动词形式主要分为三类：（1）一般过去时（动作与wish同时发生）；（2）过去完成时（动作先于wish发生）；（3）would/could/might+动词原形（动作后于wish发生）。,I wish that I were a bird and could fly freely in the sky.,I wish I had met that film star yesterday.,I wish that I would fly to the moon one day in the future.,注：if only+句子=How I wish that+从句，表示“但愿，如果就好了”。,If only I were a flying bird!,=How I wish I were a flying bird!,If only I had seen the film!=How I wish I had seen the film!,用于宾语从句中,1、wish后的宾语从句一般用虚拟语气，表示一种不可能实现的,9,2,、,用于表示建议、愿望、命令等动词后的宾语从句中，常见的动词有：suggest,advise,propose,recommend,insist,order,demand,require,request,desire,urge等，谓语动词用should+动词原形的形式，should通常省略。,He suggested that we(should)start off early the next day.,They insisted that the boy(should)go with them.,2、用于表示建议、愿望、命令等动词后的宾语从句中，常见的动词,10,特别提醒,用于表示建议、愿望、命令等动词后的宾语从句中，常见的动词有：suggest,advise,propose,recommend,insist,order,demand,require,request,desire,urge等，谓语动词用should+动词原形的形式，should通常省略。,He suggested that we(should)start off early the next day.,They insisted that the boy(should)go with them.,特别提醒用于表示建议、愿望、命令等动词后的宾语从句中，常见的,11,3,、在would rather后的宾语从句中也用虚拟语气，用过去时表示对现在或者将来情况的虚拟，用过去完成时表示对过去情况的虚拟。,I would rather they hadnt heard of the news yesterday.,3、在would rather后的宾语从句中也用虚拟语气，用,12,Itis,desired/suggested/proposed/recommended/necessary/essential/important/strange/natural/a pity/a shame+that从句，从句谓语动词用“should+动词原形”的形式，should通常省略。,It is suggested that the meeting(should)be put off till next week.,It is a pity that he(should)be badly ill.,用于主句从句中,Itisdesired/suggested/proposed,13,在suggestion,advice,proposal,order,plan,idea,desire,request,demand等名词后的表语从句和同位语从句中要用虚拟语气，从句谓语动词用“should+动词原形”的形式，should通常省略。,My idea is that we(should)think it over before accepting it.,We all agreed to his suggestion that we(should)go to Dalian for sightseeing.,用于表语从句和同位语从句中,在suggestion,advice,proposal,14,虚拟语气在定语从句中的运用,虚拟语气在定语从句中的运用,15,在It is(high/about)time that.句型中，定语从句的谓语动词一般用过去时，或用“should+动词原形”（其中should不可以省略），该句型表示“该”，用来表示提议。,It is time that you went to school.,It is time that the children should have lunch.,在It is(high/about)time that.,16,虚拟语气在状语从句中的运用,虚拟语气在状语从句中的运用,17,1、在as if/though“好像、似乎”引导的方式状语从句中，如果表达虚假的事实，需要用虚拟语气，从句用一般过去时表示与现在事实的相反；用过去完成时表示与过去事实的相反；用过去将来时表示与将来事实的相反。,He looks as if he were an artist.,They spoke English fluently as if they had learned English for many years.,特别提醒：,as if/though也可以表示真实的情况，这时用真实语气。,Look at the dark clouds in the sky.It looks as if it is going to rain soon.,1、在as if/though“好像、似乎”引导的方式状语从,18,2、在lest/for fear that“以防”引导的目的状语从句中，从句谓语动词用“should+动词原形”的形式，should通常省略。,He got up early lest(for fear that)he should miss the first train.,2、在lest/for fear that“以防”引导的目的,19,难点突破,难点突破,20,在考查虚拟语气时，在同一个语境中会牵扯到真实情况和虚拟情况，真实情况的时态使
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