英语课件九年级英语上册期中复习.ppt

Complete the sentences from your own experience: Exercises: complete the conditional sentences in the conversations 1.A: What are you doing this evening? B: I’m not sure. If there_________ (not be) anything good on TV, I think I _____ (read) a detective story. Or maybe I_____(go) to bed early. 2.A: What time will Kate be home? B: If I _____(know) I _____(tell) you. But unfortunately, she didn’t say anything about it. A: Well, if she _____(get) home before 10:00, please have her call me. 3. A: I’m so stressed out. B: It’s none of my business, but if I_____(be) you, I _____(take) some time off. 4. A: I’m afraid your flight has been delayed due to bad weather. B: Oh no! When will it take off? We don’t have any idea yet. If it_____ (stop) snowing this evening, then your flight_____ (depart) some time tonight.It’s too early to tell. I ____(let) you know if I______(hear) any news. 情态动词 情态动词：本身有词义，表示说话人的语气或情态，但词义不完全，只能与不带to的动词不定式连用，后面跟动词原形，一起（ought等除外）构成谓语。 must 表示推测，多用于肯定句。 在肯定句中must+动词原形表示对现在和将来的判断、推测。 You must be very tired. Must+ have +p.p. 表示过去的判断、推测。 She wasn’t home last night. She must have gone to her mother’s. 表示必须要做的事。(主观） 表示义务、命令或必要。必须, 应当 We must keep our word. 我们必须遵守诺言。 表示不可避免性或肯定性。必然要, 必定会 Man must die. 人必有一死。 表示与说话人愿望相反及不耐烦。偏要 Why must it rain on Sunday? 为什么偏要在星期天下雨？! Must的否定： needn’t 或 don’t have to Mustn’t 千万不能，一定不要，表示禁止行为。 You mustnt tell anybody about this - its a secret. 这件事你不能告诉任何人 - 这是一个秘密。 might mightnt 为 may 的过去式,在陈述句中表示一般的可能性。有时用might代替may，使语气婉转，表达可能性时也远不如may把握性大。可以, 或许; 可能 I said that it might rain. 我说过可能会下雨。 表示现在或将来不太确实的可能性。也许, 或许; 可能 I‘m afraid it might rain tonight. 我看今晚可能要下雨。 表示对过去事实的推测might+have+p.p. He might have been Tibet before. 他以前可能去过西藏。 用于疑问和建议时语气比 may 更加委婉,谦虚。可以 Might I ask a question? 我是不是可以提个问题? 表示愿望、祝愿、请求, 嘱咐。请, 愿, 还是...好 You might at least apologize. 你至少应该道个歉吧。 用于虚构条件句中。会; 可能