哪位大侠,能为俺讲解一下虚拟语气啊?

什么:与过去相反,与现在相反,与将来相反,老师上课讲的是把所有时态都往前推一下,啥意思啊???... 什么:与过去相反,与现在相反,与将来相反,老师上课讲的是把所有时态都往前推一下,啥意思啊??? 展开
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花花小ssYu
2011-10-17 · TA获得超过1319个赞
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你老师说的时态往前推一下,应该是现在时改为过去时,过去时改为过去完成时吧。
用法及动词形式
1、表示与现在事实相反的情况:   
从句:主语+过去时   主句:主语+should/would/could/might+do       
例句:1.If I were you,I would take an umbrella.   如果我是你,我会带把伞。(事实:我不可能是你)   
2.If I knew his telephone number,I would tell you.   如果我知道他的电话号码,我就会告诉你。(事实:不知道)   
3.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)   
4.If I had any money with me,I could lend you some.   如果我带钱了,我就会借给你些。(事实:没带钱)   
5.If he studied harder,he might pass the exam.   如果他再努力些,就能通过考试了。(事实:没有努力)   
6.she looked at me as if I had been a stranger.   她看我的样子好像我是一个陌生人。(事实:我并非陌生人)    
2、表示与过去事实相反的情况   
从句:主语+had+done   主句:主语+should/would/could/might+have done    
例句1. If I had got there earlier,I should/could have met her. 如果我早到那儿,我就会见到她。   (事实:去晚了)   
2.If he had taken my advice,he would not have made such a mistake. 如果他听我的劝告的话,就不会犯这样的错误了。   (事实:没有听我的话)   
3、表示对将来情况的主观推测   
从句:①if+主语+were to do
主句:①主语+should/would/could/might+do   
从句:②if+主语+did/were
主句:②主语+should/would/could/might+do    
从句:③if+主语+should+do
主句:③主语+should/would/could/might+do    eg:   
1.If he should come here tomorrow,I would talk to him.   如果他明天来这儿的话,我就跟他谈谈。(事实:来的可能性很小)   
2.If there were a heavy snow next Sunday,we would not go skating.   如果下周日下大雪,我们就不能去滑冰了。(事实:不知能否下雪)   
3.If she were to be here next Monday,I would tell her about the matter.   如果她下周一来这儿的话,我就会告诉她这件事的始末。  
就针对你说的,稍微说一下,具体的可以搜百度。
匿名用户
2011-10-16
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你老师有病吧
话都讲不清楚, 真不适合教书.
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那就请您来讲讲呗,没本事就别瞎喷
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臭老九.
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