大学英语四级听力中的语法难点课件.pptVIP

as if /though + Clause 现在： 过去： 将来 : did /were(现在) had done(过去) would+动词原形(将来) Would rather虚拟句 1. would rather that 现在： 过去： 未来： 过去时 过去完成时 过去时 I would rather you paid me now. I would rather you had gone, too. Don’t come. I would rather you came tomorrow. 其它虚拟句 虚拟语气 一些介词短语, 如:but for(要不是), without, otherwise(否则), in that case(如果是那样的话), 表示含蓄的条件,这时主句要用虚拟语气 Without /But for your help, we would not have made such rapid progress.  虚拟语气中的几个特例 有时为了表达需要,并不总是出现 if 引导的条件句,而通过其他手段来代替条件句. 1.I was ill that day. 0therwise, I ___________________ (take ) part in the sports meet. 2.I _______________ (give) you more help, but I was too busy. 3.But for water, it ________ (be) impossible to live in the desert. would have taken might have given would be Practice Do exercises on page 25 wish引导的虚拟句 I wish I _______(be)as tall as you. were I wish I were a bird. I wish every day _____(be)my birthday. were I wish/wished I ____________( eat ) so much watermelon. hadn’t eaten I wish it would rain tomorrow. 表示愿望( wish), 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 I wish I remembered the address. 我要是记得地址就好了。（真可惜我忘了） How I wish he had not left. 要是他没有离开这里就好了。（他已离开） I wish it would rain tomorrow. 要是明天下雨就好了。（说话人以预料明天不会下雨） wish + that How I wish If only did/were 现在 had done 过去 would / might /would do 将来 If only 引导的虚拟句 if only 意为：若是...那该多好啊; 真希望...; 只要, 只要...就好 表示现在的情况,应用过去式; 如果是过去的情况,应用过去完成时态 If only I had arrived in time! If only she didn’t drive so fast. If only (1) …要是就好了 = I wish If only I knew his name now! If only we had followed your advice last time! If only I could see him again next year! 要是我们的父母能和我们住在一起就好了。 If only our parents could live with us! If only I hadn’t missed the train! 要是我没错过火车就好了. if引导的虚拟条件句 区别: If it rains tomorrow, the crops will be saved. If it rained tomorrow, the crops would be saved. 陈述语气 虚拟语气 If I ____________time last night, I _____________ to see the film with you . had had would h