高中英语语法情态动词公开课课件.ppt

2021/3/26 * will/would: I will go to the park with you tomorrow if you will offer me lunch. Question: Is this sentence correct? Why? 情态动词 表示 “意愿” 2021/3/26 * 8.Giving advice (提出意见): You should not/ought not to eat so much before running. How delicious!!! 2021/3/26 * should: 1.Should表示劝告、建议、命令,其同义词是ought to;在疑问句中,通常用should代替ought…to。 Should I open the window? 我们应当要相互学习。 We should learn from each other. 2021/3/26 * should: 2.情态动词should用于第一人称时可以表示说话人的一种谦逊、客气、委婉的语气。 Rose—Sure. By the way, who is your idol? Jack—Liu Xiang, I should say. I should advise you not to do that again. 2021/3/26 * 3. should表示意外或惊讶 常译为 “居然,竟然”。 I can’t believe such a gentleman should be so rude to the old. 我不敢相信这样一个绅士居然对老人如此无礼。 should: 2021/3/26 * 4. should 表示猜测时,一般指按经验或逻辑判断,翻译成“照说应该，估计，想必” should: ---When can I come for the photos ? I need them tomorrow afternoon. ---They _____be ready by 12 : 00 . A. can B. should C. might D. need 2021/3/26 * 2021/3/26 * 三. “情态动词+have done”的用法 （1）must have done对过去某事的十分肯定猜测 （2）may/might have done对过去某事的可能性猜测 （3）can’t/couldn’t have done对过去某事的否定猜测 （4）should/ought to have done过去应该做而未做 （5）shouldn’t/oughtn’t to have done 过去不应该做而实际上做了 （6）needn’t have done 本没有必要做的事实际却做了 （7）could have done 本来能够做的（有能力做）事实际却未做到 2021/3/26 * 2021/3/26 * Practice With so much work on hand, you ____to see the game last night. A. mustn’t go B. could have gone C. shouldn’t go D. shouldn’t have gone 2. There was plenty of time. She ____. A. mustn’t have hurried B. couldn’t have hurried C. must not hurry D. needn’t have hurried 2021/3/26 * Practice 3. –I saw Mary in the library yesterday. --You_____ her. She is still abroad.A. mustn’t see B. can’t have seen C. mustn’t have seen D. couldn’t see 4. Aunt Mary______the train, otherwise she would have arrived here by now.A. must have missed B. should have missedC. had missed D. might miss 202