Unit 2 A Look into the Past Section A Grammar Focus课件2026-2027学年人教版九年级英语下册

该初中英语课件聚焦情态动词表推测（must be, may be, might be, could be, can’t be），通过博物馆参观情境导入，从角形物体、古代地图等具体物品猜测引出不同可能性程度，搭建“情境感知-规则归纳-练习应用”的学习支架，帮助学生衔接知识点。 其亮点在于情境化教学与核心素养融合，以汉代丝绸衣物、King Tut之死等历史素材创设真实语境，提升语言能力，引导辨析可能性程度培养思维品质，渗透文化意识。练习含填空、对话及真题，学生能在运用中掌握语法，教师可高效开展教学。

Unit 2 A Look into the past Section A What can ancient objects tell us about history？ (Grammar Focus) At the end of the class, we are able to: 1. use must be, may be, might be, could be, can’t be to make different degrees of guesses about historical objects and events. 2. discover the rules of modal verbs from reading and use them in conversations about history. Learning Objectives Good morning, everyone! Welcome to the City History Museum. Today, I will take you on a tour to explore some amazing ancient objects. Along the way, we will learn how to make guesses about history. Are you ready? Let’s go！ Look at this object. We don’t know what it is yet. What do you think? Make a guess! It has a curved shape and looks like an animal horn. It must be a horn of some kind! must be must be：very likely (almost 100%) Now we are in the central hall. Look at this ancient map. Some researchers used to think this horn came to China through foreign trade along this route. But now we have new evidence that questions this idea. So the old idea may be wrong. We need more evidence to be sure. may be may be：possible (about 50%) We found some gray powder near the tomb. What could it be? Let’s make a guess. The colour is gray and it looks very light. I guess it might be ash. But I’m really not sure — it could also be dust or something else. might be might be：very unlikely (about 20-30%) Now we are in the special exhibition hall. Look at this beautiful silk clothing from the Han Dynasty. It’s very thin and light. Do you think it could be heavy? No way! It’s so thin and light. It can’t be very heavy. Maybe it weighs only a few hundred grams. can’t be can’t be：very unlikely (almost 0%) This is our book repair room. But look at this board — here is a famous mystery. King Tut died very young. How did he die? There are many theories. Let’s make some guesses. It could be an illness. Ancient records say he was often sick. could be could be：possible (almost 40-50%) 含义 用法 例子 must 一定；肯定 (mustn’t 表示“禁止”) 有把握的肯定的 推测，用于肯定句 The light is on. Jason must be at home now. 灯亮着呢。杰森肯定在家。 情态动词表示推测 含义 用法 例子 can vs could can 可能 用于肯定句表示理论上的可能性; 用于否定句表示有把握的推测(can’t表示不可能) Scotland can be very warm in September. 九月的苏格兰有时会很暖和。 I saw Josh at the library. He can’t be at home now. 我刚刚在图书馆看到乔希了。 他这会儿肯定不在家。 could 可用于肯定句，否定句和疑问句； 语气更委婉 注:could不是can的过去式 含义 用法 例子 may vs might 可能 两者都可用于肯定句或 疑问句， 表示把握不大的推测； might语气更委婉 This volleyball might/may be Tom’s. 这个排球可能是Tom的。 He likes playing volleyball. 他喜欢打排球。 注:might不是may的过去式 不同形式的 情态动词 表示不同的含义 1.“情态动词+ 动词原形”: 表示对目前事情的推测。 e.g. The book must be Kate’s. 这本书肯定是凯特的。 2. “情态动词+be + 现在分词”: 表示对正在发生的事情的推测。 e.g. She must be doing her homework at home now. 现在她一定正在家里做作业。 3.“情态动词+ have done”: 表示对过去或已完成事件的推测 e.g. He must have known the bad news. 他一定已经知道了这个坏消息。 4.“There + 情态动词+be+ 主语+ 现在分词形式”: 表示“可能/ 或许/ 一定有……在做……”。 e.g. It is noisy. There might be some boys playing soccer. 太吵了，可能是有些男孩在踢足球。 不同形式的 情态动词 表示不同的含义 4a Read the sentences. Underline the model verbs and find out how they are used to express possibilities. That object must be a horn of some kind. Researchers now think that may be wrong. I guess it might be ash. King Tut’s death could be related to an illness. That silk clothing can’t be very heavy. ______________ _______________ _______________ must very likely possible could, may very unlikely might, can’t 4b Complete the sentences with the words in brackets. 1. If she can afford the gold watch, she _______ be poor. (mustn’t, can’t) 2. The jade objects suggest that the owner _______ be a person of great wealth. (can, could) 3. In the Terracotta Army, each soldier looks different. They _______ be the faces of real soldiers. (might, must) 4. Some people guess the “horn” _______ have been brought to China through foreign trade. (can, might) 5. A: You ______ enjoy being an archaeologist very much. (must, might) B: You’re right. I love my job. can’t could must might must 4c Complete the conversation with suitable modal verbs. Why is repairing ancient books important? James: Those ancient books look in terrible condition. Dr Xia, how long does it take to repair them? Dr Xia: Well, it depends. Sometimes, it ____________ take years to repair just one book. James: That’s a long time! It _______ require a lot of careful work. Dr Xia: Yes. Each book is a great treasure. Once they are gone, we _____________ lose the chance to understand an important part of our history. could/might must may/might/could James: That’s true! I feel really interested. What _________ I do to become an archaeologist like you in the future? Dr Xia: Oh, first, you ______ attend university to get the basic knowledge and skills. Then you ________________ receive training for a few more years. James: It ______ be easy, but I’ll try my best! Dr Xia: Good for you. It is worth the efforts. can/could must may/might/could can’t 一、单项选择。 1. (2026凉山彝族自治州)——Who is that boy reading in the garden? Is it Jimmy? —It ________ be Jimmy. I saw him in the classroom just now. A.must B.can’t C.may 2.—I’ve found a new pen, but I don’t know whose it is. —It ______ Lucy’s. She is looking for her pen. A. might be B. can’t be C. must be D. can be B C Exercises 3. —Where are you going this summer vacation？ —I ________ go to Xuzhou， but I’m not sure. A. must B. should C. might D. can 4.Is this blue schoolbag Lucy’s? I am not sure. It ________ be hers. A. must B. mustn’t C. can’t D. may 5. Children _______ be told not to swim alone in the river. A. can B. may C. must D. might􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋􀪋 C D C 二、根据汉语意思或用所给单词的正确形式填空。 1. The purpose of gaining knowledge is not to become _________ (wealth)， but to open our eyes. 2. For a long time in history, people depended on horses ________ (trade) goods. 3. Our car broke down on the street, and it needed___________________　　　　 （repair） 4. It is _________ (likely) that a 2,000-year-old silk dress can still be so well-preserved. to trade repairing/to be repaired wealthy unlikely 情态动词表推测： must: 有把握的肯定的推测，只用于肯定句。 can’t: 有把握的否定推测(注意不用mustn’t; mustn’t表禁止)。may/might/could: 把握不大的推测。 Summary $