虚拟语气在if条件句中的应用

1、The Subjunctive Mood,Presented by Wang Pingping,Believe in Yourself Believe in your dreams. Believe that you are loved. Believe that you make a difference. Believe we can build a better world. Believe theres light at the end of the tunnel. Believe that you may be that light for someone else. Believe

2、 that the best is yet to be. Believe in yourself.,虚拟语气 表示动作或状态与事实相反，或不可能发生的情况 (假设、猜测、怀疑) 表示说话人的愿望、要求、命令、建议等,虚拟语气在条件句中,If+主语+动词的过去式 （动词be用were),主语+should, would, might, could动词 原形,If+主语+had +过去分词,主语should, would, might, could have done,1、If+主语+动词过去式 2、If+主语+were to+ 动词原形 3、If+主语+should +动词原形,主语should

3、, would might, could动词 原形, If we had time now, we would read it again. If I were you, I would work hard., If he had taken my advice, he would have succeeded in the test. If I had known your telephone number then, I would have called you., If it should rain, the crops would be saved. If it were to sn

4、ow tomorrow, they would not go out.,虚拟条件句的特殊情况,(1)混合/错综型虚拟语气 (2)省略if的虚拟语气 (3)含蓄虚拟条件句 (4)在if it were not /had not been for .句型中的虚拟语气,混合/错综型虚拟语气,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，称为“错综条件句” If you had followed my advice, you would be better now. (从句说的是过去，主句是现在) If I were you, I would have taken his advice

5、. (从句是现在，主句是过去),省略if的虚拟语气,如果从句中含有were/ should/ had时，则可以把这三个词置于句首，省略if采用倒装语序 If it should happen, what would you do? Should it happen, what would you do? If he had recognized me, he would have come over. Had he recognized me, he would have come over.,含蓄虚拟条件句,有时候假设的情况不以if引导的条件从句形式表现出来，而是通过一个介词短语，连词或其他

6、形式表示。 常用的词或短语有：without, but for, otherwise, or等 Without your help(=If we had not had your help), we could not have succeeded. But for electricity(=If there were no electricity, there would be no modern industry. He felt very tired yesterday, or/ otherwise he would have attended the party.,在if it were( had been )not for 句型中的虚拟语气,虚拟语气也常用于if it were/(had been) not for .句型中，意为要不是由于 If it were not for peace, we could not be living a happy life toda