人教版（2019）高中英语必修第三册 Unit5 语法精讲课件3.pptx

情态动词表愿望语法精讲 用法11. will可用来表愿望，用于各种人称。表现在的愿望、意愿。例：I’d like to go to the park with you if you will offer me lunch. If you will wait a moment I’ll see whether Mr. John is free.情态动词表愿望（1） 用法22. would也可用来表愿望，用于各种人称。通常表示过去的愿望、意愿。例： She asked me if I would go with them. Would you recommend the book to him?情态动词表愿望（2）表现在的愿望或意愿，语气更委婉 3. 表愿望还可以用would like to或would love to，表示“想要；愿意”。用法3例：I would like to have dinner with my family tonight. I’d love to play football with my friends this afternoon. 情态动词表愿望（3） 4. 表愿望还可以用would rather，表示“情愿”。用法4例：I would rather wait till tomorrow. I would rather solve my problems alone, whatever they may be.情态动词表愿望（4） 5. may也可以用来表愿望，但语气较正式。用法5例：May she enjoy her life! May you both have a good journey!情态动词表愿望（5） 1. I would like (choose) the red pencil.解析：would like to表示“想要；愿意”，用来表愿望、意愿。语法填空。考点追击to choose 2. He said he (will) try his best to help me.解析：would用来表过去的愿望、意愿。用于各种人称。would 情态动词表许可或禁止语法精讲 典例分析表示现在或将来的许可用may或can，译为“可以”。表示过去的一般的允许用could或might。例：I can/may take a day off whenever I want. On Sundays we could/might stay up late.情态动词表许可 典例分析1. 可以用can’t、couldn’t或may not。例：You can’t go out to play now. I’m afraid you couldn’t sit here. You may not come late next class.情态动词表禁止（1）语气较弱更委婉 2.可以用shouldn’t“不应该”，含有责备的意思。典例分析例：You shouldn’t be so lazy. You shouldn’t leave without say a word. 情态动词表禁止（2） 3.可以用mustn’t，翻译为“禁止；千万别；不能” 。典例分析例：You mustn’t go swimming today. You mustn’t drive so fast.情态动词表禁止（3）语气较强 1. She said that he _______ (can) use her computer.解析：表示过去的一般的允许用could。语法填空。考点追击could 2. You play football in the street. You’ll get run over.解析：mustn’t表示“禁止” 。mustn’t Bye-bye!