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课件网) Lesson 127 Lesson 127 A famous actress snow heavily stay at home must have to It is snowing very hard , so I have to stay at home. …, so I don’t have to / don’t need to meet Alice at the station. I _____ take a taxi, because I don’t want to go there by bus. must I _____ take a taxi, because I can’t get a bus. have to Review! have to 不得不，必须 must 必须 has to had to have to 强调客观的需要，含有“不得不，被迫”的意思。而must 强调主观的看法，即主观上的必要，有责任，有义务去做。have to 有人称，时态的变化，而must没有。 Mum isn’t at home, so I have to look after my sister. We must help each other. We must study hard．我们一定要努力学习。 He had to go on foot because there was something wrong with his car.因为他的汽车坏了，他不得不走着去。 have had to will have to Review! 否定式的意义不同 must 的否定式 mustn’t 意为“一定不要”、“不允许”;而 have to 的否定式 don’t have to 意为“不必”(=needn’t)。比较： You mustn’t tell him about it.你一定不要告诉他这件事。 (这可能是秘密) You needn’t tell him about it.你不必告诉他这件事。 (他可能知道了) 1. 情态动词+原形，表示对_____推测。 例：He must be a teacher. 他一定是一名老师。（系表） 肯定的推断： 否定的推断： （而不是mustn’t be） Summary 现在或将来的情况进行 must be 肯定是 can’t be 不可能是 2. 情态动词+be doing，表对:_____推测。 例：He must be having a lot of money. 他一定有很多钱。 他们一定正在睡觉吧。 They must be sleeping. Jim may be playing the basketball. 吉姆可能正在打篮球。 正在进行的情况进行 3. 情态动词+have done，表示对过去的情况进行推测。(明天的课程中会再进行学习。) 例：It must have rained yesterday. 昨天一定下雨了。 I can’t have been late yesterday. 我昨天不可能迟到。 She could have phoned you last night. 她昨晚应该给你打电话了。 Translation： It must be cold outside. 外面肯定很冷。 They must be thirsty. 他们肯定很渴。 He can’t be Mr. Read. 他不可能是里德先生。 She can’t be late. 她不可能迟到。 Translation： 他不可能是老师，他肯定是牙医。 He can’t be a teacher. He must be a dentist. 她不可能是中国人，她肯定是日本人。 She can’t be Chinese. She must be Japanese. 它不可能便宜，肯定很贵。 It can’t be cheap. It must be expensive. --门铃响了。肯定是Bob。 --There’s the doorbell. It must be Bob. --不可能是Bob，他去电影院了。 --It can’t be Bob. He’s gone to the cinema. Lesson 127 A famous actress. Free talking. Do you like watching TV Do you know some famous actresses Who’s your favourite actress Do you know about them Do you want to be an actor/ actress Why Karen Marsh New words famous 著名的 be famous for 因为…而出名 He is famous for his novels. 他因他的小说而出名。 be famous as 作为…而出名 Hangzhou is famous as a tourist place. 杭州是一个旅游胜地。 actress 女演员 She is a famous actress. 她是一个著名的女演员。 actor 男演员 He is my favourite actor. 他是我最喜欢的男演员。 男服务员 waiter 男主人 host 女服务员 waitress 女主人 hostess at least 至少 ① 至少 这只花瓶至少价值两万英镑。 This vase is worth at least 20,0 ... ...
