if引导的非真实条件句.ppt

Unreal Conditionals,牛津高中英语模块六第三单元,if引导的非真实条件句,主讲人：南县一中 汤琼婧,非真实条件句表示说话人所说的话不是事实，而是一种假设、愿望或推测。一般用于表示现在事实相反的假设，过去事实相反的假设以及对将来的假想。,自主学习,I. Unreal present condition与现在事实相反,If_sth, _ sth.,were/did （过去式）,would/could/ might/should do （动词原形）,合作探究,如果上天能够给我一个再来一次的机会，我会对那个女孩子说三个字：“我爱你”。,If God _(offer) me another chance right now, I _(utter）the three words to the girl ,“I love you”.,offered,would utter,II. Imaginary past action与过去事实相反,If_sth, _ sth.,had done （过去完成）,would/could/might/should have done （现在完成）,If you had attended the meeting yesterday, you wouldshould have met her. If the doctor had come last night, the boy couldmight have been saved.,曾经有一份真挚的感情放在我的面前，我没有珍惜。等我失去的时候我才后悔莫及。,If I _(value) the true love when I got it, I _ _( not regret) when I lost it.,had valued,wouldnt have regretted,III. Imaginary future situation对将来的假想,If_sth, _ sth.,If I had time next week, I would help you. If I should have time next week, I could help you. If I were to have time next week, I shouldmight help you.,would/could/ might/should do（原形）,If I _ (have) enough money some day, I_ (buy) an island.,wouldcould mightshould buy,如果有一天我有足够的钱，我就会买下一座岛。,Summary 归纳总结,.,if 引导非真实条件从句中的用法,would/could/should/might +V. (原),would/could/should/ might +have done,过去完成式 (had done),过去式(did/were),过去式/ s