if引导虚拟条件句.ppt

虚拟语气语法深化 If引导的真实条件句(16) : If she shows up, we ’ ll stick with her. I’ ll give you a call if es up. I’ ll kick you out if don ’ t listen to me. 2. 主祈从现 Catch me if you can. Love me if you dare. If he comes, he is going to bring his violin. 虚拟语气语法深化 If引导的虚拟条件句: 主句一般过去时 should( would could) + 动词原形如果我是你,我不会让他走。=If I were you, I would not let him go. 如果我能飞,你就抓不到我。=If I could fly, you would not catch me. 虚拟语气语法深化 If引导的虚拟条件句: 2. 与将来事实相反的假设条件从句 主句一般过去时 should( would could) + 动词原形 Were to+ 动词原型 Should+ 动词原型 If you should eed , everything would be all right. If you were to eed , everything would be all right. 虚拟语气语法深化 If引导的虚拟条件句: 3. 与过去事实相反的假设条件从句 主句 Had done would, should, could +have done If he e yesterday, I should / would have told him about it. If he had not been ill and missed many classes, he would have made greater progress. 虚拟语气语法深化 If引导的虚拟条件句: 4. 混合虚拟语气 If you _______ him yesterday, you ______ what to do now. (ask, know) (从句与过去事实相反,主句与现在事实相反。) If it had rained last night ( 过去), it would be very cold today ( 现在). 虚拟语气语法深化 If引导的虚拟条件句: 5. 虚拟条件句的倒装虚拟条件句的从句部分如果含有 were, should, 或 had, 可将 if省略,再把 were, should 或 had 移到从句句首,实行倒装。 If they were here now, they could help us. = Were they here now, they could help us. If you e earlier, you would have met him. = Had e earlier, you would have met him. If it were to rain, the crops would be saved. =Were it to rain, the crops would be saved. 1. This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense. (09 年天津市高考) A. would B. should C. could D. might 2.— It was the drug , not the disease , that killed Michael Jackson. — He would be still alive today if he ___ that drug. A. not take B. shouldn ’ t have taken C. didn ’ t take D. hadn ’ t taken 3. You didn ‘t let me drive. If we _____in turn, you _ _____so tired. (1996 年全国高考题) A. drove, didn't get B. drove; wouldn't get C. were driving;