例句: If the police would have (A) arrived (B) earlier, he would have (C) seen (D) the accident. (答案:A had, 与过去事实相反, 从句用had done) Had paul received (A) six more (B) votes in the last election, he would have been (C) our chairman (D) now. (答案:C would be, 时间状语now表示主句与现在事实相反) The demand for (A) electricity can (B) not readily be met were it not (C) for another source of (D) energy-nuclear power. (答案:B could, 表示非真实的假设) Victor obviously (A) doesn′t know what′s happened (B) .otherwise he didn′t make (C) such a (D) stupid remark. (答案:C wouldn′t have made, otherwise连接虚拟分句) Without (A) the friction between their (B) feet and the ground, people will (C) in no way (D) be able to walk. (答案:C would, 介词without引导虚拟条件) So great (A) was (B) the influence of Thomas paine on (C) his own time that John Adams suggested that the era was called (D) "The Age of Paine". (答案:D be called, suggest后接宾语从句, 其谓语应用动词原形) Emphasis is laid on (A) the necessity that all the objectives to be attained (B) take into (C) account before starting (D) a new project. (答案:C be taken into, necessity后接同位语从句, 其谓语应用动词原形) It (A) is essential that (B) all these figures are to be (C) checked twice (D) . (答案:C be, 形容词essential要求其主语从句的谓语用动词原形)
[改错要领] 来源:考试大 1.熟记英语虚拟语气的主从句常规搭配形式: 假设类型 从句谓语动词形式 主句谓语动词形式来源:考试大 与现在事实相反 动词过去式(Be动词were) would 动词原形 与过去事实相反 had 过去分词 would have 过去分词 与将来事实相反 should 动词原形were to 动词原形 would 动词原形