人教版英语选修六Unit 4 Global Warming（虚拟语气）课件(共38张PPT)

Welcome: ladies and gentlemen! 虚拟语气 The Subjunctive Mood 1. If 虚拟条件句 2. wish 后的宾语从句 3. would rather +从句 1. 表示要求，命令，坚持，建议等意义的词 2. It’s (about/high) time +从句 3. as if /though+ 从句 Review New contents 虚拟语气 定义： 用来表示说的话不是事实，或者是不可能发生的情况，而是一种愿望，建议，假设的语气，这就叫虚拟语气。 If虚拟条件句 If 虚拟句条件句 与现在事实 相反 与过去事实 相反 与将来事实 相反 一般过去时 (be用were) 过去完成时 （had +过去分词） 一般过去时 were to+动原 should+动原 would/should/could/might +动词原形 would/should/could/might +have+过去分词 would/should/could/might +动词原形 If 条件句 主句 The dog: If I _______a bird, I could/would fly. were If I _________, I would have passed the English exam last month. Sometimes you regret… Your score_________ Choose the best answer.   ( A)1. Peter _____ come with us tonight, but he isn’t very sure yet. A. may B. can C. must D. will ( B )2. ---Are you coming to Jeff’s party? ---I’m not sure. I_____ go to the concert instead. ( NMET 2000 ) A. must B. might C. should D