Unit 8 Section A Grammar Focus～4c课件 -2025-2026学年人教版初中英语九年级全一册

Unit 8 It must belong to Carla. Section A Grammar Focus~4c 23028 学习目标 1 2 梳理并掌握情态动词must, might, could, can’t 对物品进行推测; 在真实语境中运用情态动词进行推测，培养逻辑推理能力; 23028 laboratory n. 实验室 ① a research laboratory 研究实验室 ② laboratory tests 实验室的测试 outdoors adv. 在户外；在野外 If the weather's good, we'll eat outdoors (= not in a building). 如果天气好，我们将在户外吃饭。 New words 23028 coat n. 外套；上衣 put on/take off your coat 穿上 / 脱下外套 相关词汇：an overcoat 一件大衣 a raincoat 一件雨衣 sleepy adj. 困倦的；瞌睡的 ① a sleepy child 打瞌睡的孩子 ② He had begun to feel sleepy. 他开始感到昏昏欲睡。 相关词汇：sleep v. 睡觉；入睡 n. 睡眠；睡觉 New words 23028 lie v. (lay, lain) 平躺；处于 ① There was a child lying on the ground. 地上躺着一个小孩。 ② Snow was lying thick on the ground. 厚厚的积雪覆盖着大地。 New words 23028 There are some big footprints in the yard. Whose footprints (脚印) are they? 新课讲授 23028 They could be a dinosaur's footprints. They might be a monster's footprints. Haha, they must be dad's footprints. They might be a giant's footprints. 在英语中，我们通常会用到情态动词must, can, could, may, might表示对某件事物的确定程度，即表示推测。 23028 ① It's 10:00 p.m. He must be at home by now. ② Don't eat it. It could go bad. ③ He can't be more than 40. ④ He said he might come tomorrow. 情态动词中的must, can, could, may, might都可表推测。其中must的可能性最大，can 次之，may / could / might最小。 表示推测的情态动词 他不可能超过四十岁。 现在是晚上十点。他这会儿肯定在家。 不要吃它，它可能变质了。 他说他明天可能来。 情态动词 must, can, could, might后接动词原形，表示对现在情况的推测。 23028 1. must的用法 ① You must be tired after such a long journey. ② “You must be Emma,” said the visitor. ③ My mother must be watering the flowers in the garden now. must表示很大的可能性，意为"一定、必定"，只用于肯定句中。 经过这么长的路程，你想必累了。 来客说：“你肯定是埃玛。 我妈妈现在一定在花园里浇花。 23028 ① Someone is knocking at the door. Who can it be? ② Maria can't be in the classroom, because I saw her go into the supermarket just now. can常用于否定句或疑问句表示惊讶、怀疑、不相信等。can't表示"不大可能"。 有人在敲门。会是谁？ 玛丽亚不可能在教室里，因为我刚才看见她走进超市。 2. can和can't的用法 23028 ① I'm not sure where Mom is. She may be at home. ② It might not/could not be Jack singing in the room. may/ might/ could都能表示"可能"，could和might语气更委婉，might语气最为缓和，含义更不确定。 may not / might not / could not表示不太确定的否定推测，意为"可能不"。 我不知道妈妈在哪里。她可能在家。 可能不是杰克在房间里唱歌。 3. may / might / could的用法 23028 注意事项 ③ Your mother must be waiting for you at home now. “情态动词 + 动词原形”表示对现在或将来的情况进行推测。 “情态动词 + be + 动词的-ing形式”表示对正在进行的情况进行推测。 “情态动词 + have + 动词的过去分词"表示对过去的情况进行推测。 ① Now she might be in the shop. ② She may arrive here before 5 o'clock tomorrow morning. ④ The road is wet. It must have rained last night. 23028 Choose the best way to complete each sentence using the words in brackets. 4a might be must be could be can't be could be/must be 1. A: Where's Jean? B: I'm not sure. She _________ (is / might be / must be) in the laboratory. 2. A: Everyone is going to the pool after school. B: Really? It _________ (must be / can't be / could be) hot outdoors. 3. A: That's the phone. B: Hmm. I wonder who it ________ (must be / could be / should be). 4. A: I wonder if these are Jim's glasses. B: They ________ (can't be / might be / could be) his. He doesn't wear glasses. 5. A: I hear water running in the bathroom. B: It ________________ (could be / must be / can't be) Carla. She was thinking of taking a shower. 23028 Complete these responses. 4b 1. A: Many people are wearing coats. B: The weather must be ____________. 2. A: Sally has been lying in bed all day. B: She might _______. A: This restaurant is always crowded. B: The food ________________. A: Whenever I try to read this book, I feel sleepy. B: It can't ________________. be interesting cold outside be ill must be delicious 23028 Look at this picture of a room. How much can you tell about the person who lives here? Is it a boy or a girl? What are his/ her hobbies? Discuss your ideas with a partner. 4c A: It could be a girl's room because it's very tidy. B: I guess so. But it might be a boy's room because the clothes look like boys' clothes. 23028 1. - Is that boy in a white shirt over there Leo? - No, it _____ be him. He has gone to Kunming. A. must B. can't C. might 2. The toy truck _____ belong to Jane's little brother. He was the only little kid at the picnic. A. must B. can't C. could 23028 4. The book _____ be Mary's. We can see her name on it. A. need B. must C. can't D. needn't 3. - How beautiful the paper cutting is! Who made it? - It ______ be Linda. She's the only one that can make it in our class. A. must B. would C. can D. could 23028 6. - Whose English book is this? - It _____ be Lily's, but I'm not sure. A. might B. can't C. must 5. - Look! Mark is reading a book in the library. - It _____ be him. He is in the classroom. A. can't B. wouldn't C. needn't 23028 Make inference: 情态动词表推测 must very sure may/ might could 50% - 80% probably sure 20% - 40% possibly sure can't very sure not 课堂总结 23028 Write a passage about the picture in 4c. Homework 23028 $$