4虚拟语气.ppt

虚拟语气是一种特殊的动词形式，一是用来表示说话人所说的话不是一个事实，而是一种假设、猜测、怀疑等(在条件从句中)；二是表示说话人的愿望、要求、命令、建议等 (在宾语从句、表语从句、同位语从句)。 一、在条件从句中 (叫虚拟条件句)，表示与事实相反的条件。分三种情况(以 do 为例)： [例句] If you had come a few minutes earlier, you would have met him. 要是你早来几分钟的话，你就能见到他了。(与过去事实相反) 2. If it were sunny tomorrow, I would come to see you. 明天要是天气好的话，我来看你。(与将来事实可能相反) 3. If I were you, I would go at once. 假如我是你的话，我会马上走。(与现在事实相反，事实上我不可能是你) If you had come a few minutes earlier, you would have met him. 2. If it were sunny tomorrow, I would come to see you. 3. If I knew everything, I wouldn’t be here. 1、记住：这些动词后面接的宾语从句：表示愿望( wish), 建议(suggest, advice, propose, recommend) ，要求(demand, request, require, insist), 命令(order, command)等。 2、除wish外，其它动词用should + do 构成, should 可以省略。 3、 wish接宾语从句有三种情况： 1) 现在：用过去式 2) 过去：用过去完成式 (had done) 3) 将来：用情态动词(would / could) + do [例句] 1. I wish she would be on my side. 我希望她能站在我一边。 2. I wish I were 30 years younger. 我但愿自己能年轻三十岁。 3. I wish (that) you would get a good job. 我希望你能找到一个好职业。 4. He wished he hadnt done it. 他想要是他没这样做该多好。 5. He ordered that the students ( should) wash the clothes every week by themselves. 他要求学生每周都要自己洗衣服。  4、记住：insist / suggest 各有两种意思，要用不同的语气 Insist 表示“坚决要求”时，用虚拟形式，即 should + do; Insist 表示“坚称，坚持说”时，用陈述语气，表示事实。 Suggest 表示“建议”时，用虚拟形式。 Suggest 表示“表明、暗示”时，用陈述语气。[例句] The teacher suggested that we (should) clean the blackboard after class. 老师建议我们课后把黑板擦了。 The half smile on his face suggested that he was happy to have given his life for his country. He insisted that all of us (should) be there on time by any means. 他坚持要我们大家想尽办法按时去那儿。 He insisted that he was right.他坚持说他是对的。 在句型 “It is important (necessary, strange, natural) that .... ” 中，that 后面的从句中的谓语动词用： should + 动词原形  [例句] It’s necessary that we should have a walk now. 我们有必要出去散散步。 It’s natural that she should do so. 她这样做是很自然的。 It’s important that we should take good care of the patient. 重要的是我们要照顾好病人。  主句的主语常是表示说话人愿望(wish / desire)、建议(suggestion / advice) 要求(requir