九年级英语上册Unit8Itmustb教学课件新版人教新目标版 17页

Unit 8 Section B Self -check Look at the things in the backpack below. Make guesses about the owner of the backpack. Then talk about your ideas with your partner. Sample conversation 1: A: Here are some earrings. The owner can’t be a boy. B: Well, it could be a boy. The earrings might be a present for his mother. Sample conversation 2: A: Here is a Chinese-English dictionary. It could belong to Mary. I know she has one. B: I don’t think so. It can’t be Mary’s. This one is new, but hers is old. Sample conversation 3: A: Here is a flower. The owner must be a girl. B: Well, it could be a boy. The flower might be a present for his teacher. be Tony’s （ 是 …… 的 ） It must 情态动词 must, might, could, can’t 后接动词原形 , 可以表示对现在的情况的 . It can’t ( )… It might/could ( ) … It must ( ) … + be (cold/a CD/ sb’s) Summary ★ ★ 推测 belong to Tony. ( 属于 …… ) 不可能 有可能 肯定 Self Check Fill in the blanks with must , might or can’t . 1 That bright light _________ be a UFO – there’s no such thing! I’m still waiting for the bus, so I ____________ be a bit late for the party. can’t could/might 3. That sweater _________ be Carla’s. she’s the only one who wear such colorful clothes. 4. Tony _________ want to go to the concert. He likes music, but I’m not sure if he likes rock music. 5. The person you saw at the supermarket __________ be Susan. I just talked to her on the phone, and she’s at work right now. must might can’t Look at the chart and write sentences for the things below. 2 Name Likes Dislikes Jessica take photos run Todd play the piano eat sweet food Mike play tennis watch movies Annie read cook 1. DVD It can’t be Mike’s. He doesn’t like to watch movies. 2. bowl of ice-cream __________________________________ 3. camera ___________________________________ 4. cookbook ____________________________________ 5. tennis ball ____________________________________ 6. running shoes ____________________________________ It can’t be Todd’s. he doesn’t eat sweet food. It must be Jessica’s. she likes taking photos. It can’t be Annie’s. She doesn’t like to cook. It must be Mike’s. He likes to play tennis. It can’t be Jessica’s. she doesn’t like to run. MORE PRACTICE 2. 这是谁 的发带？ _______ _______ ________ is this? 它可能是梅的发带 , 或者可能属于琳达 , 她们两人都是长头发。 It ______ be Mei’s hair band. Or it _______ belong to Linda. They _____ have long hair. 1. 这是谁的 排球 ? _________ __________ is this? 这一定是卡拉的。她热爱排球运动。 It _________ be Carla’s. She loves volleyball. Whose volleyball must Ⅰ. Fill in the blanks. Whose hair band could might both 3. 那晚你 看见了什么？ ______ did you see that night? 我不确定，但肯定不可能是狗 , 它更大 , 我想也许是一头 熊或一匹狼。 I'm ____ _____, but it _____ _____a dog. It was bigger. I think it _______ _____ a bear or a wolf. What not sure can’t be Might be 1. — Excuse me. Is this the right way to the Summer Palace? — Sorry, I am not sure. It ______ be. A. might B. will C. must D. can 2. — Isn’t that Ann’s husband over there? — No, it ______ be him — I’m sure he doesn’t wear glasses. A. can’t B. must not C . won’t D. may not Ⅱ. Choose the correct answer. 3. You ______ be tired — you’ve only been working for an hour. A. must not B. won’t C. can’t D. may not 4. — Is John coming by train? — He should, but he _______ not. He likes driving his car. A. must B. can C. need D. may 5 . — Whose book is this ? — It _______ be Lucy’s. Look, Her name is on the cover. A. can B. must C. may D. could 6. — It took me nearly forty minutes to walk here. — Have a drink, please. You _______ be thirsty. A. will B. must C. should D. can 7 . I don’t know him. He ______ a new comer. A. must be B. may C. can be D. might 8. Mary ______ be in Paris. I saw her in town only a few minutes ago. A. mustn’t B. shouldn’t C. can’t D. may not