Unit 6 课时3 Section A Grammar Focus 4a-4c（教学课件）英语新教材鲁教版九年级全一册

该初中英语课件聚焦情态动词表推测（must, can't, might等），涵盖对现在和过去情况的推测用法。课堂导入通过“青铜盒”等文物情境，以线索提问（如材质、发现地）引导学生推测，搭建从具体情境感知到语法规则学习再到实践应用的学习支架，衔接前后知识。 其亮点在于融合语言能力与文化意识，通过文物推测对话、修复笔记写作等任务提升语言运用，结合兵马俑、古书等中国文化元素培养家国情怀。采用情境教学和任务驱动，如“青铜盒之谜”T/F判断锻炼思维品质，分层作业（绘画+写作）发展学习能力。学生能提升推测表达与文化理解，教师可高效落实语法与文化教学目标。

6 UNIT A Look into the Past BIG Question ❓ How do we find out about the past? In this unit, you will 1. talk about historical objects and sites. 2. discuss possibilities using modal verbs. 3. write a presentation script about a historical object or site. 4. explore ways to bring history to life. Modal verbs for possibilities Period 3 4a - 4c Grammar Focus 1. 辨识情态动词（must, can't, might, could等）在推测语境中的功能，理解不同情态动词所表达的确信程度差异，以及“must / might + have done”结构表示对过去推测的用法。（学习理解） 2. 根据给定语境，选择恰当的情态动词完成句子和对话，正确表达对现在或过去情况的推测。（应用实践） 3. 在模拟对话中，运用情态动词推测一件文物或历史书籍的保存状况、制作方式或历史价值，并尝试就“如何成为一名考古学家”进行简单问答。（应用实践） 4. 选择一种身边常见的职业（如医生、科学家、教师等），运用本课所学的情态动词，对其工作难度、所需能力或工作意义进行合理推测与评价，并与同伴交流看法。（迁移创新） 学习目标 通过本课时的学习，学生能够： Contents 1 3 4 5 6 7 2 Lead in Presentation Practice Production Summary Exercise Homework 1 Lead in ？ What could it be? Where might it be from? Who must have made it? Clue 1 : It's made of bronze and very heavy. Clue 2 : It has a strange face with big eyes. Clue 3 : It was found in Sichuan. It must / might be a tool. It could / can't be from China. It might / must be from the Shu kingdom. 2 Presentation 4a Read the sentences. Underline the modal 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 can’t may might could can must 表示极大地可能性，意为：一定；肯定。注意：否定形式为mustn’t， 意为禁止。 can / could / may / might 表示有可能，其中could 和 might 语气更委婉。 can’t 表示不可能， 用于否定句。 3 Practice 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’t, could) 3. In the Terracotta Army, each soldier looks different. The sculptures _______ be the faces of real soldiers. (might, must) 4. Some people guess the “horn” _______ have been brought to China through foreign trade because its design is unique to the Middle East. (can’t, might) 5. A: You ______ enjoy being an archaeologist very much. (must, might) B: You’re right. I love my job. can’t could might 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. James: That’s true1 I think this work is really important. What _______ I do to become an archaeologists like you in the future? might must might can 4c Complete the conversation with suitable modal verbs. Why is repairing ancient books important? 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 effort. must must can’t 4 Production The Mystery of the Bronze Box Three students — Emma, Jack, and Lily — were visiting the city museum. They saw a strange bronze box in a glass case. It had strange marks on it that looked like writing. Emma: “Look at this box! It must be very old. The marks on it look like an ancient language.” Jack: “But it can't be from China. The marks don't look like Chinese characters. They might be from another country.” Lily: “I think it could be a box for keeping jewels. It's so small and beautifully made.” Read the conversation. Circle T for true or F for false. Emma: “Yes, but it might not be for jewels. It could be a box for important letters or maps.” Just then, a museum guide came over. She said, “This box was found in a tomb in Xinjiang. It is about 2,000 years old. The marks are from an ancient language called Kharosthi. It was used in Central Asia.” Jack: “So it must have been brought to China through trade! That's amazing.” Lily: “The person who owned it must have been very rich. Only wealthy people could own such beautiful things.” Emma: “I wonder what was inside. It might have been filled with gold or silk. But it can't have been food — food would have rotted away a long time ago.” Jack: “This box must be one of the most interesting things in the museum. I'm so glad we came!” They all agreed and decided to learn more about ancient trade routes.  The bronze box must be very old. 2. The marks on the box might be from China. 3. The box can't be a box for jewels. 4. The owner of the box must have been very rich. 5. The box might have been used to hold food. T F T F T F T F T F 5 Summary 【核心词汇】 考古与文物类：Terracotta Army（兵马俑），jade（玉器），sculpture（雕塑品），ancient books（古书），treasure（珍宝） 职业与技能类：archaeologist（考古学家），receive training（接受培训），attend university（上大学），repair（修复） 描述性与抽象类：wealth（财富），effort（努力），unique（独特的），valuable（有价值的），terrible（糟糕的） 其他动词：afford（买得起），suggest（表明），guess（猜测），require（需要），lose（失去） Summary 【核心短语】 be poor / be of great wealth（贫穷的/富有的） be unique to ...（为……所特有/独一无二） in terrible condition（处于糟糕的状况） It depends.（视情况而定） once they are gone（一旦它们消失） be worth the effort（值得付出努力） try one's best（尽最大努力） Summary 【语法知识】 情态动词表推测的用法系统归纳： 1. 对现在情况的推测： must be：肯定（确信度高，有把握） could / might / may be：可能（确信度较低） can't be：不可能（确信度高，否定） 2. 对过去情况的推测（情态动词+have done）： must have done：过去一定做了某事（对过去的确信推测） might / could have done：过去可能做了某事（对过去的不确定推测） can't have done：过去不可能做了某事（对过去的否定确信推测） 3. 本课时重点：区分不同情态动词在具体语境中的选用，尤其注意根据前后文提供的逻辑线索（如证据、常识、结果等）选择合适的推测词。 Summary 6 Exercise 一、单项选择 1. The ancient book is covered with dust and has many torn pages. It ______ be in very good condition. A. must B. can't C. might D. could 2. The jade bracelet is so smooth and shiny. The owner ______ have worn it every day for many years. A. can't B. might C. must D. shouldn't 3. The design of this bronze mirror is very special and ______ to this area. A. similar B. wealthy C. terrible D. unique Exercise 4. The museum ticket costs 200 yuan. If she only has 50 yuan, she ______ afford the ticket. A. mustn't B. can't C. might not D. couldn't 5. The large stone walls ______ have been built without modern machines, so it must have taken a huge amount of human labour. A. can't B. must C. might D. could 6. Repairing these old paintings ______ a lot of patience and skill, so only experienced experts can do it. A. suggests B. affords C. requires D. guesses Exercise 二、使用所给词的适当形式填空。 1. The pottery is broken into many pieces. It ________________ (can't / be) used for cooking recently. 2. The coins are all from the same year. The owner __________________ (must / collect) them at that time. 3. The painting looks very old, but the frame is new. It ___________ (might / be) a copy of an ancient work. 4. The stone tool is very heavy. It _________ (can't / be) used for cutting paper. 5. You have visited the museum three times this month. You _______________ (must / enjoy) history very much. can’t have been must have collected might be can’t be must enjoy 7 Homework 巩固性作业: 文物修复师 假设今天你收到一本从考古现场送来的古书，这本书纸张发黄、部分页面破损，但封面上有精美的花纹。请你用英语写 5-6句话 的“修复工作笔记”，内容需包括： 1. 描述这本书的外观现状（如纸张、封面、破损程度等）； 2. 推测它的可能年代； 3. 推测它过去可能属于谁或被用来做什么； 4. 说明修复这本书需要什么条件或技能； Homework 拓展性作业: 古代生活场景复原（写作+绘画） 请你选择一个古代文明（如古埃及、古希腊、古中国商周时期、古印度等），在A4纸上绘制一幅简单的古代生活场景图（例如：人们劳作、祭祀、用餐、建造房屋等场景），并在图画下方用英语写一段 6-8句话 的文字说明。说明内容需包括： 1. 描述画中人们在做什么； 2. 推测他们当时居住的环境、穿着的衣物、使用的工具或食物等。 3. 至少使用 3个不同的推测类情态动词，其中必须包含一个对过去的推测。 Homework $