高考英语虚拟语气

1、虚拟语气目录虚拟语气在非真实条件句中的运用虚拟语气在名词性从句中的运用虚拟语气在定语从句中的运用as if从句中的虚拟语气“情态动词+have done”用法一览表整理PPT一、虚拟语气在非真实条件句中的运用从句从句主句主句例句例句与现在事实相反的假设If + 动词过去式（be动词用were）主语 + should/would/could/might + 动词原形If I were you ,I should seize the chance to go abroad.与过去事实相反的假设If + had + 过去分词主语 + should/would/could/might + have +

2、 动词原形If you had taken my advice, you would not have failed in the exam.与将来事实相反的假设1. If + 动词过去式2. If + were to + 动词原形3. If + should + 动词原形主语 + should/would/could/might + 动词原形If he should not come tomorrow, we would put off the meeting till next Monday.整理PPTIf 省略句当条件状语从句中谓语含有were, had，should，可省略if，同时把

3、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. _ , you would have caught the bus.If it should rain tomorrow, we would not go climbing. _ , we would not go climbing.Had

4、 you come earlierShould it rain tomorrow整理PPT二、虚拟语气在名词性从句中的运用1.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愿望。虚拟语气通过时态退一步来实现。 I wish I were a bird and could fly freely in the sky. I wish I had met that film star yesterday. How I wish it werent raining now! (拓展：How I wish+从句=If only+句子)整理PPT二、虚拟语气在名词性从句中的运

5、用1.用于宾语从句中（2）在would rather后的宾语从句中也用虚拟语气，用动词过去式虚拟当时或将来的情况，用过去完成式虚拟过去的情况。 例句：I would rather they hadnt heard of the news yesterday.整理PPT二、虚拟语气在名词性从句中的运用1.用于宾语从句中（3）用于表示建议、愿望、命令等词后的宾语从句中。常见动词有demand, order, insist, suggest, propose, advise等。虚拟语气通过“should+动词原形”来实现，其中should可省略。 例句：He suggested we (should

6、) start off early the next day. They insisted that the boy (should) go with them. 注意：当suggest表示“暗示、表明”之意时，后面的宾语从句不使用虚拟语气，应使用陈述语气。 如：The smile on his face suggested that he was satisfied with our work.整理PPT二、虚拟语气在名词性从句中的运用2. 用于主语从句中 It is desired / suggested / proposed / recommended / necessary / imp

7、ortant / strange / natural / a pity / essential +that 从句，从句的谓语动词用“should+动词原形”，should可以省略。 例句：Its suggested that the meeting (should) be put off till next week.整理PPT二、虚拟语气在名词性从句中的运用3. 用于表语从句和同位语从句中 在 suggestion, proposal, 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，其构成是“should+动词原形”，sho

8、uld可以省略。 例句：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.整理PPT三、虚拟语气在定语从句中的运用It is (high) time that 句型中，定语从句的谓语动词用一般过去时，或用“should+动词原形”（此时should不能省略）。此句型意为“（现在）该”，用来表示建议。 It is (high) time that you went t

9、o school. =It is (high) time that you should go to school. It is (high) time that the children had lunch. =It is (high) time that the children should have lunch.整理PPT四、as if从句中的虚拟语气形式形式用法说明用法说明as if + 一般过去时（did）从句谓语动词与主句谓语动词表达的动作同时发生as if + 过去完成时（had done）从句动作在主句动作之前发生as if + 过去将来时（would do）从句动作在主句动

10、作之后发生整理PPT四、as if从句中的虚拟语气例句：1.他看起来像个艺术家。 He looks as if he _ an artist.1.她讲英语如此流利，好像她在美国学过英语。 She speaks English so fluently as if she _ English in America.1.他如此努力地学英语，好像他要去美国。 He learns English so hard as if he _ to the U.S.A.werehad studiedwould go整理PPT五、”情态动词+have done”用法一览表情态动词情态动词+have done用法用法例句例句must have done一定做了（表推测）It must have rained last night, for the road is quite muddy.cant have done不可能做了（表推测）He cant have forgotten it.neednt have done本不必做却做了You neednt have taken a tax