Unit1ArtSectionⅣ课件（新人教版选修6）.ppt

虚拟语气(Ⅰ);一、虚拟语气的概念 虚拟语气是谓语动词的一种形式，表示说的话不是事实，或者是不可能发生的情况，而是一种愿望、建议或与事实相反的假设。 If I were a bird, I could fly in the air. 如果我是一只鸟，我就能在空中飞行。;二、虚拟语气的运用 1．虚拟条件句中的虚拟语气 在含有虚拟条件句的复合句中，主从句的谓语都要用虚拟语气，现将其形式列表如下：;假设情况;(1)与现在事实相反 If I were you, I would tell him the good news. 要是我是你，我就会告诉他这个好消息。 If we had time now, we should read it again. 要是现在有空，我们就把它再看一遍。;(2)与将来事实相反 If it should rain, the crops would be saved. 如果下雨的话，庄稼就有救了。 If I shouldn’t take the exam tomorrow, I would go to the picnic with you. 要是明天不参加考试的话，我就会和你一起去野餐。;[点津]　虚拟条件句中有were, had, should时，可把if省略，把were, had, should放在主语前，用倒装结构，这种结构主要用于书面语中。 Should it happen (＝ If it should happen), what would you do? 如果真发生这样的事，你怎么办呢？;1－1 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 。考查虚拟语气。从前面had I known about ...知，此处是if条件句对过去情况的虚拟，所以主句用should/would/could/might＋have done结构，故排除B、C、D项，选A项。;1－2 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 。考查虚拟语气。句意：这种打印机质量优良。如果它在第一年中出了毛病，我们将无偿维修。这是在条件句中对将来情况的虚拟，用“should＋动词原形”。;2．宾语从句中的虚拟语气 (1)wish后的宾语从句使用虚拟语气，表示不能实现的愿望。;I wish I knew what was going to happen. 但愿我能知道发生什么事。 He wishes he could become a scientist some day. 他希望将来的某一天能成为科学家。;— Where are the children? The dinner’s going to be completely ruined. —I wish they________ always late. A．weren’t B．hadn’t been C．wouldn’t be D．wouldn’t have been 解析：选 。考查虚拟语气。根据问句句意“孩子们现在在哪里？” 可知wish 后的宾语从句应用动词的过去式，表示与现在事实相反的愿望，故答案为A。;(2)在表示命令、建议、要求等一类动词后面的从句中，谓 语动词用“should＋动词原形”表示虚拟，should可以省略。 这类动词，我们可以使用下面的口诀记忆。 一坚持(insist) 二命令(order, command) 三建议(suggest, propose, advise) 四要求(require, request, desire, demand);I suggest that we (should) practise speaking English every day. 我建议我们应该每天都练习讲英语。 He insisted that he (should) be sent there. 他坚持应该被派去那里。;[点津]　当insist表示“坚持认为；坚持说”，suggest表示 “表明；暗示”时，后面的宾语从句不用虚拟语气。 H