专题10 情态动词-备战2021年中考英语语法精华课件

can should may will must would might 1 情态动词 modal verb 2 Discussion What will you do or say when… 1. you are late for class 2. you see an old man carrying a heavy box 3. you see some kids playing on the road May I come in? Can I help you? You mustn’t play on the road. 3 may & might will & would need / dare can & could must shall & should 情态动词 4 What can I do? I can swim. What can he do? He can swim. What can they do? They can swim. 1. 情态动词+ V原 2. 无人称和数的变化 3. 独立进行句型转化 5 can的主要用法   A.  __________：   The girl can dance very well. B.  _____________： Can the news be true? C. ______________: Can I sit here? 表示能力 表示推测,可能性 （多用于疑问、否定句中） No, it can’t be true. 表请求或允许, “可以” can & could 6 can & could could的主要用法 A. ______________________________ I could read when I was three. Father said I could go out with my friends. We all knew that the young man couldn’t be a doctor. B. __________________ Could you lend me your bike? Could I use your bike? 表示过去的能力,许可和推测 (肯、否、疑) (can — could) 在疑问句中表示委婉的请求 7 exercise 1. —I saw John in the park this morning. —It _____ be him. He has gone to Hong Kong. A. can't B. can C. must 2. —Lucy is walking the dog in the park. —She ___ be. Listen! She is singing loudly in her room. A. can't B. mustn't C. needn't 3. —Look! Is the young lady wearing a blue dress Grace? —No, it ____ be her. She is picking up my sister at the airport. A. can't B. mustn't C. can 8 may & might may 的主要用法   A. _________________________    —May I come in? —Yes, please. / No, you mustn't/can't. B. ________________ But I may be wrong. The guest may arrive this afternoon. C. ___________________ May you succeed! May you have a good journey! 表示请求、允许;比can正式，“可能，也许” 表示猜测(肯，否) 表示祝愿;语气较正式 9 may & might