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考点：真实条件句主句为将来时，从句用一般现在时。 注意： 1)在真实条件句中，主句不能用be going to表示将来，该用shall, will. (错) If you leave now, you are never going to regret it. (对) If you leave now, you will never regret it. 2)表示真理时，主句谓语动词不用shall (will) +动词原形，而直接用一般现在时的动词形式 1.(C)_____ to do the work, I should do it some other day. A. If were I B. I were C. Were I D. Was I 考点：在虚拟条件状语中如果有were, should, had这三个词，通常将if省略，主语提前, 变成 were, should, had +主语的形式。但要注意，在虚拟条件状语从句中，省略连词的倒装形式的句首不能用动词的缩略形式。如我们可说 Were I not to do, 而不能说 Weren't I to do。 2.(D)There was plenty of time. She ___. A. mustn't have hurried B. couldn't have hurried C. must not hurry D. needn't have hurried 考点：needn't have done. 意为"本不必"，即已经做了某事，而时实际上不必要。 Mustn't have done 用法不正确，对过去发生的事情进行否定性推断应为couldn't have done, "不可能已经"。 must not do 不可以(用于一般现在时)。 (责任编辑：admin) |