Book6 Module6 Grammar.ppt

1) 与过去事实相反： 从句 had done, 主句would/ should/ could/ might/+have done e.g. If he had been warned, he would not have taken that food. 如果有人提醒他, 他就不会吃那 些食物了。 2) 与现在事实相反： 从句did/ were, 主句would/ should/ could/ might + do e.g. If I were you, I would refuse to do it. 如果我是你, 我就拒绝做这件事。 wish +宾语从句(虚拟语气), 表示不可能实现的愿望 1) 与过去事实相反, 从句用过去完成式：had done 2) 与现在事实相反, 从句用过去式：did/ were 3) 与将来事实相反, 从句用should/ would/ could/ might +do e.g. I wish I had never met him. 我真希望我从来没遇到过他。 I wish I were as strong as you. 我真希望像你一样强壮。 I wish you would succeed this time. 但愿你这次获得成功。 as if 引导的方式状语从句常用虚拟语气 1) 当从句里的时间先于主句的时间时,从句用过去完成时 had done。 e.g. He talks as if he had been to the moon. 他高谈阔论就好像去过月球一 样。 would rather 后接从句,也可用虚拟语气 It is time that 虚拟形式 * 虚拟语气 虚拟语气表示说话人所说的不是事实, 而是想象, 假设, 建议, 打算, 意见, 间接命令, 愿望, 怀疑, 推测, 惊异等。 虚拟语气在条件从句及主句中的使用： 1) If the hurricane had happened during the day time, there would have been more deaths. 如果飓风发生在白天，那么死亡的人数会更多。 2) If everyone in the country knew first aid, many lives would be saved. 如果这个国家的每个人都懂得急救, 那么许多生命就可以得到挽救。 3) If I saw him tomorrow, I should tell him. 如果我明天看到他, 我会告诉他的。 从句 a. did b. should + do, c. were to +do 主句would/ should/ could/ might + do 3) 与将来事实相反： e.g. If I did it, I would do it in a different way. If I should do it, I would do it in a different way. If I were to do it, I would do it in a different way. 如果我去做这件事, 我将会用一种不同的方法 虚拟语气在宾语从句中的用法 在动词: suggest, order, demand, propose, request, command, insist 等后的宾语从句中, 用虚拟语气(即should + do或者只用动词原形do),来表示愿望,建议,命令,请求等。 e.g. The doctor insisted that the patient (should) be X-rayed. 医生坚决主张病人做X光。 I suggest that we (should) set off at once. 我建议我们应该立即出发。 2) 当从句里的时间与主句的时间是同 一时间时,从句用过去式did/ were。 e.g. He talked as if he were