同步语法讲解（情态动词）-2025-2026学年人教版七年级英语下册

该初中英语情态动词知识清单系统梳理了情态动词的核心内容，涵盖概念、常见用法、特别注意事项及中考题型练习，搭建了从基础概念理解到用法辨析再到综合应用的递进式学习支架。 清单通过表格对比呈现情态动词用法、专项标注易混点（如must与have to的主客观区别），并设计分层练习（单选、完形、句型转换），培养学生的语言能力和思维品质。特别标注否定式、疑问句等关键用法，不同基础学生可高效掌握，教师可据此精准设计教学，提升课堂实效。

情态动词 (语法讲解+分层精炼） 目 录 一、语法讲解 1 （一）情态动词概念 1 （二）常见情态动词用法 1 （三）特别注意事项 2 二、中考题型练习（30道） 2 （一）单项选择（15题） 2 （二）完形填空（10题） 3 （三）句型转换（5题） 4 一、语法讲解 （一）情态动词概念 情态动词表示说话人的语气、态度或看法，不能独立作谓语，必须与动词原形一起构成谓语。常见特点： 1. 无人称和数的变化； 2. 后接动词原形； 3. 否定式直接加not（have to除外）； 4. 疑问句中将情态动词提前。 （二）常见情态动词用法 情态动词 基本含义 用法说明 例句 can/could 能力、许可 can表现在能力，could表过去能力；表请求时could更委婉 I can swim. Could I use your pen? may 许可、可能性 表请求许可；表推测“可能” May I come in? It may rain tomorrow. must 必须、肯定推测 表示主观必须；否定回答用needn't/don't have to You must finish homework. Must I go? No, you needn't. have to 客观必须 有各种时态变化，否定式需加助动词 I have to get up early. He doesn't have to come. need 需要 作情态动词主要用于疑问句和否定句 Need I help you? You needn't worry. should 应该 表示建议、义务 You should study hard. Should we wait here? will/would 意愿、请求 would比will更委婉 Will you help me? Would you like some tea? （三）特别注意事项 1. can与be able to：can只有现在和过去时，其他时态用be able to； 2. must与have to：must强调主观，have to强调客观； 3. may与might：might可能性更小，更委婉； 4. need的用法：作实义动词时，后接to do，有人称变化。 二、中考题型练习（30道） （一）单项选择（15题） 1. — ______ I use your dictionary? — Yes, here you are. A. Must B. Need C. May D. Should 2. You ______ play with fire. It's dangerous. A. mustn't B. needn't C. may not D. couldn't 3. — Must I finish my homework now? — No, you ______. You can do it tomorrow. A. mustn't B. needn't C. can't D. shouldn't 4. Tom ______ swim when he was five years old. A. can B. could C. may D. must 5. It's raining hard. You ______ take an umbrella. A. should B. could C. would D. might 6. — ______ you pass me the salt? — Certainly. A. Must B. Need C. Could D. Should 7. We ______ keep quiet in the library. A. can B. may C. must D. could 8. — Need I wash all these dishes? — No, you ______. A. needn't B. mustn't C. can't D. shouldn't 9. The light is on. He ______ be at home. A. can B. may C. must D. will 10. Students ______ wear uniforms at school. A. have to B. may C. can D. could 11. — Would you like to go shopping with me? — Sorry, I ______. I have to do my homework. A. wouldn't B. can't C. needn't D. mustn't 12. You ______ drive after drinking. It's against the law. A. mustn't B. needn't C. may not D. couldn't 13. — Who is knocking at the door? — It ______ be Mary. She said she would come. A. can B. may C. must D. will 14. You ______ finish the work today. Tomorrow is OK. A. mustn't B. needn't C. can't D. shouldn't 15. — ______ I have some more cake? — Of course. Help yourself. A. Must B. Need C. May D. Should （二）完形填空（10题） Mike is a good student. He 1 always finish his homework on time. Yesterday, he 2go home early because he had to clean the classroom. His mother asked, "Mike, 3 you be home before 6 o'clock?" Mike answered, "I'm sorry, Mom. I 4 . I have to do my duty." Today, Mike has a fever. The doctor said, "You 5 stay in bed for two days. You 6 go to school tomorrow." Mike asked, "7 I do my homework in bed?" The doctor said, "No, you 8. You need a good rest. But you 9 watch some TV if you want." Mike's friend said, "Don't worry. I10 help you with your lessons later." 1. A. can B. must C. may D. will 2. A. couldn't B. needn't C. mustn't D. shouldn't 3. A. can B. must C. will D. would 4. A. can't B. mustn't C. needn't D. shouldn't 5. A. can B. may C. should D. must 6. A. needn't B. mustn't C. can't D. shouldn't 7. A. Must B. Need C. May D. Should 8. A. mustn't B. needn't C. can't D. shouldn't 9. A. can B. must C. may D. should 10. A. can B. must C. will D. would （三）句型转换（5题） 1. I can speak English. (改为一般疑问句) ______ you ______ English? 2. You must finish the work now. (改为否定句) You ______ ______ finish the work now. 3. May I open the window? (作肯定回答) Yes, ______ ______. 4. She needs to buy a new pen. (用need作情态动词改为疑问句) ______ she ______ a new pen? 5. They have to get up early every day. (改为一般疑问句) ______ they ______ ______ get up early every day? 答案与解析 （一）答案： 1-5: CABBA 6-10: CCACA 11-15: BACBC 解析： 1. C 表请求许可用may最正式 2. A mustn't表示禁止，“绝不能” 3. B must问句否定回答用needn't 4. B 过去的能力用could 5. A 建议“应该”带伞 6. C 委婉请求用could 7. C 图书馆规定“必须”保持安静 8. A need问句否定回答用needn't 9. C 肯定推测“一定”在家 10. A 学校规定，客观必须用have to 11. B 没有能力做某事用can't 12. A 法律禁止用mustn't 13. C 根据“她说会来”进行肯定推测 14. B 不必今天完成 15. C 请求许可用May I （二）答案： 1-5: AABAA 6-10: DCBAC 解析： 1. A 他有能力按时完成作业 2. A 他不能早回家（过去时） 3. A 询问“能不能”6点前回家 4. A 他不能（做不到） 5. A 医生建议“应该”卧床 6. D 不应该去上学（为了健康） 7. C 请求许可“可以吗” 8. B 不必做作业（需要休息） 9. A 如果愿意“可以”看电视 10. C 朋友主动提出帮助“将会” （三）Can, speak （can引导的一般疑问句） 2. needn't/don't have to （must的否定形式） 3. you may （May I...的肯定回答） 4. Need, buy （need作情态动词的疑问句） 5. Do, have to （have to是实义动词，需助动词do） 1 学科网（北京）股份有限公司 $ 情态动词 (语法讲解+分层精炼） 目 录 一、语法讲解 1 （一）情态动词概念 1 （二）常见情态动词用法 1 （三）特别注意事项 2 二、中考题型练习（30道） 2 （一）单项选择（15题） 2 （二）完形填空（10题） 3 （三）句型转换（5题） 4 一、语法讲解 （一）情态动词概念 情态动词表示说话人的语气、态度或看法，不能独立作谓语，必须与动词原形一起构成谓语。常见特点： 1. 无人称和数的变化； 2. 后接动词原形； 3. 否定式直接加not（have to除外）； 4. 疑问句中将情态动词提前。 （二）常见情态动词用法 情态动词 基本含义 用法说明 例句 can/could 能力、许可 can表现在能力，could表过去能力；表请求时could更委婉 I can swim. Could I use your pen? may 许可、可能性 表请求许可；表推测“可能” May I come in? It may rain tomorrow. must 必须、肯定推测 表示主观必须；否定回答用needn't/don't have to You must finish homework. Must I go? No, you needn't. have to 客观必须 有各种时态变化，否定式需加助动词 I have to get up early. He doesn't have to come. need 需要 作情态动词主要用于疑问句和否定句 Need I help you? You needn't worry. should 应该 表示建议、义务 You should study hard. Should we wait here? will/would 意愿、请求 would比will更委婉 Will you help me? Would you like some tea? （三）特别注意事项 1. can与be able to：can只有现在和过去时，其他时态用be able to； 2. must与have to：must强调主观，have to强调客观； 3. may与might：might可能性更小，更委婉； 4. need的用法：作实义动词时，后接to do，有人称变化。 二、中考题型练习（30道） （一）单项选择（15题） 1. — ______ I use your dictionary? — Yes, here you are. A. Must B. Need C. May D. Should 2. You ______ play with fire. It's dangerous. A. mustn't B. needn't C. may not D. couldn't 3. — Must I finish my homework now? — No, you ______. You can do it tomorrow. A. mustn't B. needn't C. can't D. shouldn't 4. Tom ______ swim when he was five years old. A. can B. could C. may D. must 5. It's raining hard. You ______ take an umbrella. A. should B. could C. would D. might 6. — ______ you pass me the salt? — Certainly. A. Must B. Need C. Could D. Should 7. We ______ keep quiet in the library. A. can B. may C. must D. could 8. — Need I wash all these dishes? — No, you ______. A. needn't B. mustn't C. can't D. shouldn't 9. The light is on. He ______ be at home. A. can B. may C. must D. will 10. Students ______ wear uniforms at school. A. have to B. may C. can D. could 11. — Would you like to go shopping with me? — Sorry, I ______. I have to do my homework. A. wouldn't B. can't C. needn't D. mustn't 12. You ______ drive after drinking. It's against the law. A. mustn't B. needn't C. may not D. couldn't 13. — Who is knocking at the door? — It ______ be Mary. She said she would come. A. can B. may C. must D. will 14. You ______ finish the work today. Tomorrow is OK. A. mustn't B. needn't C. can't D. shouldn't 15. — ______ I have some more cake? — Of course. Help yourself. A. Must B. Need C. May D. Should （二）完形填空（10题） Mike is a good student. He 1 always finish his homework on time. Yesterday, he 2go home early because he had to clean the classroom. His mother asked, "Mike, 3 you be home before 6 o'clock?" Mike answered, "I'm sorry, Mom. I 4 . I have to do my duty." Today, Mike has a fever. The doctor said, "You 5 stay in bed for two days. You 6 go to school tomorrow." Mike asked, "7 I do my homework in bed?" The doctor said, "No, you 8. You need a good rest. But you 9 watch some TV if you want." Mike's friend said, "Don't worry. I10 help you with your lessons later." 1. A. can B. must C. may D. will 2. A. couldn't B. needn't C. mustn't D. shouldn't 3. A. can B. must C. will D. would 4. A. can't B. mustn't C. needn't D. shouldn't 5. A. can B. may C. should D. must 6. A. needn't B. mustn't C. can't D. shouldn't 7. A. Must B. Need C. May D. Should 8. A. mustn't B. needn't C. can't D. shouldn't 9. A. can B. must C. may D. should 10. A. can B. must C. will D. would （三）句型转换（5题） 1. I can speak English. (改为一般疑问句) ______ you ______ English? 2. You must finish the work now. (改为否定句) You ______ ______ finish the work now. 3. May I open the window? (作肯定回答) Yes, ______ ______. 4. She needs to buy a new pen. (用need作情态动词改为疑问句) ______ she ______ a new pen? 5. They have to get up early every day. (改为一般疑问句) ______ they ______ ______ get up early every day? 1 学科网（北京）股份有限公司 $