高三英语一轮复习as if; if; otherwise；should do虚拟语气学案.docx

《高三英语一轮复习as if; if; otherwise；should do虚拟语气学案.docx》由会员分享，可在线阅读，更多相关《高三英语一轮复习as if; if; otherwise；should do虚拟语气学案.docx（2页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、 虚拟语气学案(一) -Miya英语中的语气分为陈述语气、祈使语气、虚拟语气、疑问语气和感叹语气五类。虚拟语气表示说话人的主观愿望、猜疑、建议或与事实不符的假设等，而不表示客观存在的事实。此外如需表达主观愿望或某种强烈的感情时，也可用虚拟语气。虚拟语气通过谓语动词的特殊形式来表示。一. if引导的条件状从的虚拟条件句可分为两类，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或实际可能性不大的甚至完全不可能发生的情况，故采用虚拟语气。If条件句主句与现在事实相反一般过去；be用werewould/should/could/might do与过去事实相反过去完成时would/sho

2、uld/could/might have done与将来事实相反一般过去时/should do/ were to dowould/should/could/might doe.g. If there were no air or water，there would be no living things on the earth.如果没有水和空气，地球上就不会有生物。(事实：地球上既有空气也有水)仿写：如果我是你，我会带把伞。如果我带钱了，我就能借给你些。If he had taken my advice，he would not have made such a mistake.如果他听我的

3、劝告的话，就不会犯这样的错误了。仿写：如果我早到那儿，我就会见到她。If there were a heavy snow next Sunday，we would go skating.如果下周日下大雪，我们就去滑冰。仿写：如果他明天来这儿的话，我就跟他谈谈。如果她下周一来这儿的话，我就会告诉她这件事的始末。注意：If条件句中如果有were, should, had,可以省去if,把were,should,had提到句首进行倒装。雨太大了。如果天气好，我会去那。如果我之前努力学习，我就能有个好工作了。二. as if=as though引导的方式状语从句的虚拟若as if/though引导的从

4、句表示的是事实或很可能出现的情况,从句一般用陈述语气。若它们引导的从句是非真实情况或出现的可能性不大,从句通常用虚拟语气。主句无限制。as if/as though引导的从句与现在事实相反一般过去；be用were与过去事实相反过去完成时与将来事实相反would/might/could+doThe teacher treats his students as if they_(be) his children.Even after 2 years, it felt as if we_(talk) yesterday.The lady brisked up to him as if she _(k

5、ill) him.那妇人向他急急而来，好像要杀了他似的。注意：既然as if/as though引导方式状语从句。那就可以应用状语从句的省略规则。即:He pack his belongings as if_(have) a holiday.She stood at the door as though_(wait) for someone.三. otherwise虚拟语气1.作连词时,常用于祈使句+otherwise+陈述句。 一个句子。中间无逗号。2.作副词时,常用于虚拟语气。它后面的谓语动词用would/could/should/might have done. 前面的句子谓语动词用一般过去式。We lost our way in that small village. Otherwise we_(visit) more tourist destinations yesterday.四 写出用谓语动词(should)+do体现虚拟语气的两大类1.2.学科网（北京）股份有限公司