虚拟语气 语气有三种：陈述语气、虚拟语气、祈使语气
虚拟语气，表示说话人的假设、猜测、建议或愿望，而不表示客观存在的事实
第一部分 虚拟语气用于含（或隐含）条件状语从句的复合句一、 基本情况1、与现在事实相反表示与现在事实相反的假设时，条件状语从句中的谓语动词用“过去式（be的过去式一般用were）”；而主句中的谓语动词用“would(should, could, might)+动词原形”
例如：If he had time, he would attend the meeting
If I were you, I would go to look for him
If I were a teacher, I would be strict with my students
If they were here now, they would help you
练练看If they (have) time, they (study) Italian too
If there (be) no gravity, we (not be) able to walk
2、与过去事实相反表示与过去的事实相反的假设时，条件状语从句的谓语动词用“had+过去分词”；主句中的谓语动词用“would(should, could, might)+have+过去分词” 例如：If you had taken my advice, you wouldn’t have failed in the examination
If I had come here yesterday, I would have seen him
If she had worked harder, she would have succeeded
练练看The rice ___________ (not burn) if you
