Unit 8 Section A 第2课时 3a～4c-【初中学霸创新题】2025-2026学年九年级全册英语同步课件(人教版)

Section 第 2 课 时 (3a~4c) ………………………………… A Unit 8 It must belong to Carla. 单词：mystery, theory, familar, hidden, power, link, parallel, universe, mix-up, trick, unsolved, 短语：deja vu, be kown as, paralell universe, generally speaking, Learning Goals 掌握情态动词表推测的用法 1 2 2 The skirt must be Lily’s. It can’t be John’s because he is a boy. Discuss John Lily The hair band may be Mary’s because her hair is longer, but it also might be Lucy’s. Mary Lucy Read the passage and choose the best title. 3a A. The Science of Déjà Vu B. The Mystery of Déjà Vu C. The Meaning of Déjà Vu 5 Language points there is no need to worry about it.没必要担心。 ◉ There is no need to do.意为“没有必要做某事”。也可以省略“there is”，直接说“no need to do sth.”。 ※ Don't stress about the exam. There is no need to worry too much. 不要为考试太紧张。没有必要担心太多。 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 2. ...remains one of the many fascinating unsolved mysteries of human experience.似曾相识仍然是人类体验中许多令人着迷的未解之谜之一。 ◉ unsolved 为形容词，意为“未解决的；未解答的；未破案的”通常用来形容那些还没有找到答案或解决方案的问题、谜团、案件等。动词形式为solve。 ※ There are many unsolved puzzles in the world. 世界上有许多未解之谜。 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 Read the passage again and answer the questions. 3b 1. Where does the term déjà vu come from and what does it mean? 2. What do some people believe about the familiar scenes during a déjà vu experience? The term "déjà vu" comes from French and means “already seen”. Some people believe the familiar scenes of déjà vu must come from past dreams. Some suggest that déjà vu might show we have a hidden power to see the future. Others even think there could be a link between déjà vu and parallel universes. 3. How do most scientists explain déjà vu? 4. What should you do if you experience déjà vu often? Most scientists say that déjà vu is just a mix-up in the brain, making us feel something is familiar when it is actually not. If you experience déjà vu often, you might have a health problem, and you should see a doctor. Generally speaking, if you experience déjà vu from time to time, there is no need to worry about it. 5. Among all the opinions about déjà vu, which one interests you most? Why? Among all the opinions about déjà vu, the one that interests me most is the idea that déjà vu might show we have a hidden power to see the future. This theory is intriguing because it suggests that we might have abilities beyond our current understanding. Grammar Focus Whose volleyball is this? It must be Carla’s. She loves volleyball. Whose hair band is this? It could be Mei’s hair band. Or it might belong to Linda. They both have long hair. What did you see that night？ I’m not sure, but it can’t be a dog. It was bigger. I think it might be a bear or a wolf. 情态动词中的 must、can、could、may、might 都表推测。其中 must 的可能性最大，can/could 次之， may/might 最小。 Grammer points ◉ must 表示推测“可能性”时，意为“一定；准是”，语气较肯定，较有把握。“must+动词原形”表示对现在情况较有把握的推测，意为“一定”；“must have+动词的过去分词”表示对过去情况较有把握的推测，意为“一定已经”。 ※ Mr. Li must be working now, for the lights in his office are still on. 李先生一定在工作，因为他办公室的灯仍然亮着。 must 的用法 ◉ must 表推测只能用于肯定句。mustn’t 表示“禁止；不准”。如果要表示“一定不；肯定不”的意思，应用 can’t。 ※ You mustn’t play outside when it is raining. 下雨时，不准在外面玩。 ◉ can 表示推测“可能性”时，往往用于否定句或疑问句。 ※ He can’t be at home. =It is impossible that he is at home. 他不可能在家。 ◉ could 可用于表示某事有可能发生或可能是事实，语气不 是很肯定。 ※ Don’t eat it. It could be poisonous. 不要吃它，它可能有毒。 can 和 could 的用法 ◉ couldn’t 用于否定推测，表示某事不可能是事实，但自己也不能肯定。 ※ It couldn’t possibly be Tom, for he should be at school now. 这不可能是汤姆，因为此时他应该在学校。 ◉ may/might 表示推测“可能性”时，意为“可能，也许”，语气没有 must 肯定。 ※ He may/might be an American. =It is possible that he is an American. 他可能是个美国人。 may 和 might 的用法 ◉ may/might 表推测时，可以用于否定句，意为“可能 不，也许不”，但不用于疑问句。 ※ He may/might not be at home, but I am not sure. 他也许不在家，但我不确定。 ◉ 表示推测时，may not 意为“可能不”，can’t 意为 “不可能”，前者较后者语气弱得多。 Choose the best way to complete each sentence using the words in brackets. 4a 1. A: Where’s Jean? B: I’m not sure. She __________ (is/might be/must be) in the laboratory. might be 2. A: Everyone is going to the pool after school. B: Really? It ________ (must be / can’t be /could be ) hot outdoors. must be 3. A: That’s the phone. B: Hmm. I wonder who it __________ (must be / could be / should be). could be 4. A: I wonder if there are Jim’s glasses. B: They _________ (can’t be / might be / could be) his. He doesn’t wear glasses. can’t be 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. could be / must be 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 _________. getting colder / cold outside be ill 3. A: This restaurant is always crowded. B: The food _______________________. 4. A: Whenever I try to read this book, I feel sleepy. B: It can’t __________________. be very interesting must be delicious 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 It could be a girl’s room because it’s very tidy. I guess so. But it might be a boy’s room because the clothes look like boys’ clothes. 一.根据句意及首字母或汉语提示填写单词。 1. I didn’t sleep well last night. So I now feel very s_________. 2. There’s something _________（贵重的）in the safe. 3. —W_________ handbag is this？ —It’s my mother’s. She bought it yesterday. 4. The weather made it impossible to be _________（在室外）. leepy hose valuable Practice outdoors 1. —On my way to the bookstore, I saw Mary hanging out with her friends. —It _____ be her. She has gone to Beijing. A. can’t B. mustn’t C. might D. could 2. The little boy has just had lunch. He _____ be hungry already. A. must B. mustn’t C. can D. can’t 二. 单项选择 3. —Whose book is this？ —It _____ our geography teacher’s. You see, his name is on it. A. can’t be B. can be C. mustn’t be D. must be 4. —He _____ be in the classroom, I think. —No, he _____ be in the classroom. I saw him go home a minute ago. A. can; may not B. must; may not C. may; mustn’t D. may; can’t 0 1. Retell the passage in 3a. 2. Review the words and expressions of Section A. Homework 绿卡图书—走向成功的通行证 $$