Lesson 128 He can’t be... He must be... (课件)-2024-2025学年新概念英语第一册

New Concept English 新概念英语第一册（初阶） Lesson 128 He can’t be... 他不可能...... He must be... 他肯定是...... 授课教师： Tel: Review Lesson 127 A famous actress 著名的女演员 KATE: Can you recognize that woman, Liz? LIZ: I think I can, Kate. It must be Karen Marsh, the actress. KATE: I thought so. Who's that beside her? LIZ: That must be Conrad Reeves. KATE: Conrad Reeves, the actor? It's can't be. Let me have another look. I think you're right! Isn't he her third husband? LIZ: No. He must be her fourth or fifth. KATE: Doesn't Karen Marsh look old! LIZ : She does, doesn't she! I read she's twenty-nine, but she must be at least forty. KATE : I'm sure she is. LIZ : She was a famous actress when I was still at school. KATE : That was a long time ago, wasn't it? LIZ : Not that long ago! I'm not more than twenty-nine myself. New words and expressions 生词和短语 famous /ˈfeɪməs/ adj. 著名的 actress /'æktrəs/ n. 女演员 at least /ət-'liːst/ 至少 actor /'æktə(r)/ n. 男演员 read /ri:d/ (read /red/, read) v.通过阅读得知 重点短语总结： be famous for 因为......而出名 be famous as 作为......而著名 have a look（at... ) 看一看 have another look 再看一下 at least 至少——at most 最多 at school 在学校 look old 看起来老 a long time ago 很久以前 more than多于——less than 少于 Grammar： 表示肯定的推断：must be“肯定是” 表示否定的推断：can’t be“不可能是”(而不是mustn’t be) eg：He must be a teacher. 他肯定是一名老师。 He can’t be a doctor. 他不可能是一名医生。 一、用must/can't 填空 1. This book _________ be Carla’s. Her name is on the book. 2. Jack’s bike is blue, so this yellow one ___________ be his. 3. The guitar __________ belong to Alice. Only she plays the guitar here. 4. He_________ be Japanese. He speaks Japanese so well. 5. Miss Liu___________ be in the office. She has gone to Beijing to study. 二、单项选择 1. A: Doesn't Ben look handsome? B:__________. A. He does, doesn't he? B. He does, does he? C. He doesn't, he doesn't! D. Doesn't he, he does! 2. Let me have _________ look. A. the other B. one C. other D. another 3. My grandmother is __________ 85 years old. A. in least B. at least C. on least D. for least 4. A: I think it's going to rain tomorrow. B: __________. Tomorrow will be a fine day. A. I think so B. I think not so C. I think so not D. I don't think so 5. My brother was a teacher when I was still __________. A. at school B. in school C. at the school D. in the school 6. A: How old is Susan? B: She __________ 45. A. can be B. need be C. have to be D. must be 7. Liz recognized Karen Marsh, __________? A. doesn't she B. didn't she C. did she D. does she 8. A: Whose is the car in front of the building? B: It _________ Mr. Green's. I'm not sure. A. must be B. may be C. will be D. can be 9. This purple handbag _________ be Lily's. Her handbag is pink. A. mustn't be B. may not be C. needn't be D. can't be 10. The man near the window__________ your boss. A. need be B. must be C. have to be D. can be 三、翻译下列句子 1. 那个帅气的男孩子一定是杰克。 ________________________________________________________ 2. 我必须要找到那串钥匙。 ________________________________________________________ 3. 明天肯定不是个好天气。 ________________________________________________________ 4. 我自己还不到29岁呢。 ________________________________________________________ 5. 他不可能是她的爸爸。 ________________________________________________________ 6. 她本应该更努力学习的。 ________________________________________________________ Lesson 128 He can’t be... 他不可能...... He must be... 他肯定是...... Make the conversations and answer the questions. 编对话并回答问题。 He can’t be a musician. She must be an engineer. He can’t be ill. It can’t be my new hat. He must be tired. It must be my old one. She can’t be Danish. He can’t be a dentist. She must be Swedish. He must be a doctor. She can’t be forty. It can’t be the 20th. She must be fifty. It must be the 21st. He can’t be the youngest. He must be the oldest. She can’t be reading. She must be sleeping. Language points 语言要点 1. 动词的分类 动词分类 概念 实意动词 能独立作谓语的动词 系动词 本身有意义，但不能独立作谓语，必须和表语一起构成谓语。 助动词 本身无意义或意义不完整，不能单独作谓语。 情态动词 有一定词义，本身不表示动作和状态，而仅仅表达说话人的态度。 2. 情态动词 (1) can (过去式 could） 1) 用于肯定句，表示“能” I can speak English. 2) 用于疑问句，可以表示请求或用于询问。 Can you help me? Can you swim? 3) 用于否定句，表示某人不能... can't be 表示否定推测。（0%） He can't swim. It can't be Miss Li. (2) need 的用法 need 需要 情态动词： need+动词原形 实义动词： need sth./ need to do sth. needn't 不需要 用于must的开头的一般疑问句的否定回答。 —Must I go to school tomorrow? —Yes, you must. —No, you needn't. (3) may 可以 情态动词(用于请求许可) eg. —May I sit down？—Certainly！ —May I come in？—Yes, please！ 考点：May I…? 句型的回答： 肯定回答：Certainly./ Why not？ Yes, please. /Sure. 否定回答：No, I’m sorry. I’m afraid you can’t. (4) must 的用法 1) 用于肯定句，表示“主观上必须”。 I must study hard. 2) 否定式 mustn't "一定不能” 表示禁止。 You mustn't play on the road. 3) must be 表示推测。 It must be Miss Li. 4) Must ... ? 否定回答为No, 主语+needn't. He might be a man. He may be a driver. He must be a man. 肯定猜测 否定猜测 把握度 不是很有把握（50%） 句中通常出现 “not sure” might 可能是 might not 很没有把握（25%） 句中通常出现 “not sure” must 一定是 may 很可能是 can't 不可能 注意不是 mustn't; needn't 很有把握（75%） 句中通常有证据。 may not 注意： Must I finish homework tonight? Yes, you must. No, you needn't/don't have to. 不必 He must be very hungry because he was playing football the whole afternoon. 必须 一定是 不同的“肯定”程度可按下列层次排列： He is at home. 肯定事实 He must be at home. 非常肯定的推断 He may be at home. 仅仅可能而已 He might be at home. 或许，非常不确定 He couldn’t be at home. 很可能不在家 He can’t be at home. 不可能在家 He isn’t at home. 否定事实 表示推测——情态动词的重要用法： Thanks for your listening! $$