小英子0113
1. 第一句如果使用虚拟语气,则为: If it should rain tomorrow, the game would be put off. 或:If it rained tomorrow, the game would be put off. 或:If it were to rain tomorrow, the game would be put off. 如果使用陈述语气,则为: If it rains tomorrow, the game will be put off. 2. 第二句如果使用虚拟语气,为: If it should rain tomorrow, we would cancel the picnic. 或:If it rained tomorrow, we would cancel the picnic. 或:If it were to rain tomorrow, we would cancel the picnic. 如果使用陈述语气,则为: If it rains tomorrow, we will/shall cancel the picnic. 3. if引导的条件状语从句使用虚拟语气时,如果是对将来的情况虚拟,则 1)if从句谓语由“should + 动词原形”或“were to + 动词原形”或使用一般过去时; 2)主句谓语由“would/could/should/might + 动词原形”构成. 4. 其实楼主所举的这两个例句不用虚拟语气也可以,用不用虚拟语气除了和过去/现在的事实相反之外,更多还是看说话人的语气问题. 如果说话人觉得把握不大,可能就使用虚拟语气; 如果语气较为肯定,则可以直接使用陈述语气.