（人教·山东）2013英语复习方略课件：选修6 Units1~2.ppt

6. ［2010陕西，15］If we ______ the other road, we might have arrived here in time for the meeting. A. take B. had taken C. took D. have taken 【解析】选B。句意：如果我们走另外一条路，我们就有可能及时赶到这儿参加会议了。由句意可知，实际上我们没有走另外一条路，所以没能及时赶到这儿参加会议。本题是对过去动作的虚拟。对过去动作虚拟时，主句用would/could/might+ have +过去分词，从句用过去完成时had + 过去分词。 7. ［2010安徽，26］Bob would have helped us yesterday, but he ______ . A. was busy B. is busy C. had been busy D. will be busy 【解析】选A。句意：昨天，鲍勃本来可以帮助我们，但他当时太忙了。这是一个事实和虚拟假设的混合句。but前的句子，从 would have helped 可知这是虚拟语气，表示过去本来可以帮助我们，但实际上没有。but 之后说明当时不能“帮助我们”的原因，是过去的客观事实，故应用一般过去时。 8. ［2010北京，34］—The weather has been very hot and dry. —Yes. If it had rained even a drop, things would be much better now! And my vegetables ______ . A. wouldn’t die B. didn’t die C. hadn’t died D. wouldn’t have died 【解析】选D。句意：——天气又热又干。——是啊。哪怕下一滴雨，情况比现在都要好得多！我的蔬菜也就不会死了。由句意及题干中的If it had rained even a drop可知事实上说话人的蔬菜已经死了，题中是对过去的虚拟，所以主句用wouldn’t+have +过去分词，因此选D。 9. ［2010浙江，10］Had I known about this computer program, a huge amount of time and energy _______ . A. would have been saved B. had been saved C. will be saved D. was saved 【解析】选A。考查虚拟语气。句意：如果我知道这个电脑程序的话，就会节省大量的时间和精力了。本句是对过去动作的虚拟，从句省略了if把had放到了句首，对过去动作进行虚拟时，主句谓语动词用“would have done”形式。 10. ［2009天津，15］This printer is of good quality. If it ______ break down within the first year, we would repair it at our expense. A. would B. should C. could D. might 【解析】选B。考查虚拟语气。句意：这台打印机质量很好，如果一年内坏了的话，我们会保修。与将来事实相反的虚拟语气，if从句谓语动词应用should+动词原形或were to+动词原形或用过去式。 表1 虚拟语气的常见用法 类 型 构 成 或 用 法 典 句 例 示 与现在事实相反 If+主语+动词过去式(be的形式一律用were)，主句主语+should/ would/could/might+动词原形。 用于感 叹句中 “if only+陈述句”表示现在的愿望用过去时；表示过去的愿望用过去完成时；表示将来的愿望用过去时或过去将来时。 ①If only I were a bird! ②If only we had listened to their advice. 用于状 语从句 中 If we had time now, we would read it again. 类 型 构 成 或 用 法 典 句 例 示 用于状 语从句 中 与过去事实相反 If