Unit6语法讲解及习题：表推测的情态动词（Modal verbs for possibilities）2026-2027学年鲁教版（五四学制）英语九年级上册

该初中英语知识清单系统梳理了鲁教英语（五四学制）九年级Unit6表推测的情态动词语法内容，涵盖语气强弱排序、易混要点辨析、应用例句三大知识范畴，搭建了从基础用法理解到易错点突破再到综合应用练习的递进式学习支架。 清单采用“语气强弱分级”和“易混点对比表”构建知识体系，如将must（肯定推测）与can't（否定推测）对比标注，培养学生语言能力和思维品质。设计四种梯度题型（填空、选择、句型改写），并附详细解析（如“mustn't表禁止”的应用提示），不同水平学生可高效掌握，教师可直接用于语法教学或分层练习设计，提升教学实效。

鲁教英语（五四学制）九年级Unit6语法讲解及习题： 表推测的情态动词（Modal verbs for possibilities） 一、语法系统讲解 （一）各类情态动词表示推测的语气强弱（由大概率到小概率排序） 1. must：非常有可能，肯定、一定，用于肯定句，把握程度最高 例句：That object must be a horn of some kind. 那件器物肯定是某种兽角。 注意：must 表推测不能用于否定句，否定推测改用 can’t。 2. could / may / might：有可能，也许、或许，把握中等，三者语气依次变弱 · could：可能性偏高，还可表示过去的可能性 · may：日常最常用的推测用词 · might：可能性最低，暗含把握不大 例句：I guess it might be ash. 我猜这或许是灰烬。 King Tut’s death could be related to an illness. 图坦卡蒙的死因有可能和一场疾病有关。 3. can’t：极不可能，不可能、绝不会，专门用作否定推测 例句：That silk clothing can’t be very heavy. 这件丝质衣物不可能很重。 （二）易混要点辨析 1. mustn’t ≠ can’t · can’t：不可能（否定推测，本单元考点） · mustn’t：禁止，不准，不表示推测 2. could 表推测不区分时态，既可以指代当下可能，也可以表示过去发生的可能性；can 基本不用于肯定推测。 3. 句式限制 · 肯定推测：must > could > may > might · 否定推测：只用 can’t（不可能）；may not /might not 意为 “也许不”，并非完全否定 （三）例句梳理 1. That object must be a horn of some kind.（把握极高，肯定推测） 2. Researchers now think that may be wrong.（存在可能性） 3. I guess it might be ash.（可能性偏低） 4. King Tut’s death could be related to an illness.（有较大可能） 5. That silk clothing can’t be very heavy.（否定推测，绝不会） 二、专项练习题 题型一 根据句意选用 must/might/could/can’t 填空 1. The man over there _________ be our history teacher. He has gone abroad. 2. The ground is all wet. It _________ rained last night. 3. That old relic _________ be from the Song Dynasty. Experts have plenty of evidence. 4. I’m not sure, but it _________ be a tool used by ancient farmers. 5. It _________ be Li Ming. I saw him leave the museum ten minutes ago. 题型二 选词填空（mustn’t /can’t /may/might /could） 1. The clay pot _________ belong to a noble, we haven’t found solid proof yet. 2. You _________ touch the cultural relics. It is against the rule. 3. The bones _________ come from cattle; scientists still hold different opinions. 4. She _________ be an archaeologist, she knows so much about Terracotta Army. 5. The small coin _________ be made in modern times, its style matches ancient features perfectly. 6. Look at the pattern, it _________ be a kind of ancient decoration. 7. They _________ know the origin of this site, no local people can give relevant information. 8. It _________ take several months to dig out the whole relic. 9. He _________ visit Sanxingdui this summer, he hasn’t made his final plan. 10. You _________ park your car near the excavation area. 题型三 单项选择 1. —Whose ancient painting is this? —It _________ belong to Mr. Wang, he collects traditional cultural relics. A. must B. can’t C. mustn’t D. need 2. That _________ be true. I have checked all the historical records and prove it is wrong. A. must B. can’t C. might D. could 3. The workers _________ find more old objects in this area, but we are not certain. A. must B. can’t C. might D. mustn’t 4. —Is that archaeologist your uncle? —It _________ be him. My uncle is doing research in another city now. A. can’t B. must C. may D. could 5. You _________ smoke inside the exhibition hall of historical sites. A. can’t B. mustn’t C. might not D. may not 6. The small bronze ware _________ date back to the Tang Dynasty, nobody can confirm it now. A. must B. might C. can’t D. should 7. The room is empty. They _________ have left ahead of schedule. A. must B. can’t C. mustn’t D. needn’t 8. It _________ rain this afternoon, you’d better take an umbrella in case. A. must B. might C. can’t D. mustn’t 9. —Lily looks upset. She _________ fail the history exam. —I don’t think so. She always gets good grades. A. can’t B. must C. might D. mustn’t 10. This relic _________ be created by common people hundreds of years ago. There are clear marks. A. can’t B. must C. might D. could 题型四 句型改写 1. I am sure the jar is from ancient China.（用 must 改写） _____________________________________________________________________ 2. It is impossible that the sculpture is made recently.（用 can’t 改写） _____________________________________________________________________ 3. Perhaps these tools were used for farming long ago.（用 might 改写） _____________________________________________________________________ 4. I guess the old tomb has existed for over one thousand years.（用 could 改写） _____________________________________________________________________ 5. I’m certain he works in the museum.（用 must 改写） _____________________________________________________________________ 三、 参考答案与解析 题型一 1. can’t 解析：此人已经出国，否定推测，不可能是历史老师 2. must 解析：地面全部潮湿，笃定昨晚下过雨 3. must 解析：专家掌握充足证据，肯定为宋代文物 4. might /could 解析：并不确定，仅仅做出猜测 5. can’t 解析：十分钟之前已经离开，不可能是李明 题型二 1. might /could 没有确凿证据，只是存在可能性 2. mustn’t 禁止触碰文物，表禁令，不表推测 3. may /might/could 专家观点无法达成统一，可能性推测 4. must 她对于兵马俑十分了解，做出肯定推测 5. can’t 纹饰完全符合古式特征，绝不会是现代产物 6. could /may/might 依据纹样做出可能性判断 7. can’t 当地人都无从解释来源，他们不可能知晓 8. might /could 发掘完整遗迹或许要耗费数月时间 9. may /might 尚未敲定计划，有可能会前往三星堆 10. mustn’t 禁止在发掘区域附近停车 题型三 1.A 由爱好收藏文物可以笃定这幅古画一定属于王先生 2.B 史料已经佐证内容有误，这件事不可能属实 3.C 无法下定论，工人们或许会在此处发掘更多古器物 4.A 亲人在外地开展研究，那个人不可能是对方 5.B mustn’t 代表规章制度层面的禁止 6.B 暂时没有办法考证，这件青铜器有可能源自唐代 7.A 屋子空无一人，他们肯定提前离开了 8.B 无法确定会不会下雨，仅存在可能性 9.C 神情低落，她或许历史考试失利了 10.B 留有清晰印记，可以确定这件古物诞生于数百年前 题型四 1. The jar must be from ancient China. 2. The sculpture can’t be made recently. 3. These tools might be used for farming long ago. 4. The old tomb could have existed for over one thousand years. 5. He must work in the museum. ( 1 ) 学科网（北京）股份有限公司 $