Unit3-4语法情态动词练习-2025-2026学年外研版英语八年级下册

**基本信息** 聚焦情态动词核心用法与易混区分，通过功能分类、形式变化提炼及梯度化题型设计，强化语言运用能力与思维辨析能力。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |核心用法|should/have to/must/may/can用法解析+例句|功能分类（建议/义务/许可/推测）+形式变化（时态/否定）|从概念定义到具体语境应用，构建基础认知| |易混区分|主观vs客观/否定形式对比|通过语义对立（如shouldn't劝阻vs don't have to不必）建立辨析框架|明确相似情态动词的本质差异，突破理解难点| |测评练习|填空/单选/句型转换/翻译（共80题）|情境化应用（团队规则/志愿服务场景）+语法变形训练|从单一填空到综合翻译，实现知识迁移与能力提升|

Unit3-4情态动词练习 Unit3 What makes a great team?(should/have to) 一、核心用法 1.should (应该) 表建议、劝告、道德/情理上应当，主观语气。 *否定：shouldn't（不应该） *无人称和时态变化，后接动词原形 *例句：You should help your teammates. 你应该帮助队友。 2.have to (必须、不得不) *表客观规则、要求、现实所迫，强调被动需要。 *主语三单 → has to；否定 → don't/doesn't have to（不必） *有人称、时态变化，后接动词原形 例句：We have to follow the rules. 我们必须遵守规则。 二、易混区分 should：主观建议,可做可不做 have to：客观规定,不得不做 否定区别： shouldn't =不应该（劝阻） don't/doesn't have to = 不必（没有义务） 三、常用句型 You should do sth. 你应该做某事 You shouldn't do sth. 你不应该做某事 Sb. have/has to do sth. 某人不得不做某事 Sb. don't/doesn't have to do sth. 某人不必做某事 【测评练习】 一、用 should/have to的适当形式填空 1.As a student, you ________ listen to the teacher carefully in class. 2.He ________ get up early every day because he lives far from school. 3.You ________ play computer games too much. It’s bad for your eyes. 4.They ________ wear warm clothes yesterday because it was very cold. 5.A good team member ________ help others. 6.She ________ go to school by bus. Her father drives her every day. 7.We ________ respect our teammates’ different ideas. 8.The team ________ practice for 2 hours last night. 9.You ________ argue with your teammates. 10.He ________ finish his homework before watching TV every evening. 二、单项选择 1.As team members, we ______ follow the rules, or our coach will be angry. It’s not a choice. A. should B. have to C. shouldn’t D. don’t have to 2.You ______ always listen to your teammates’ ideas, but you ______ accept all of them. A. have to; don’t have to B. should; don’t have to C. should; mustn’t D. have to; shouldn’t 3.—Do we ______ arrive at the playground before 7 a.m. for training? —Yes. Everyone ______ be there on time. A. have to; has to B. should; should C. have to; should D. should; has to 4.He ______ stay up late to finish his team task last night, because it was very important. A. should B. has to C. had to D. will have to 5.You ______ argue with your partners. Good communication makes a strong team. A. don’t have to B. shouldn’t C. needn’t D. haven’t to 6.—Must we practice every weekend? —No, you ______. But you ______ spend some time improving your skills. A. don’t have to; should B. shouldn’t; have to C. needn’t; mustn’t D. can’t; should 7.The team leader ______ care about every member, but he ______ do all the work alone. A. has to; shouldn’t B. should; doesn’t have to C. should; mustn’t D. have to; can’t 8.We ______ wear team uniforms for the match. It’s a strict rule, so we ______ wear our own clothes. A. have to; shouldn’t B. should; don’t have to C. must; have to D. have to; don’t have to 9.She ______ take part in the group activity yesterday, for she was ill at home. A. didn’t have to B. shouldn’t C. wasn’t have to D. hadn’t to 10.If you want to work well in a team, you ______ help others and you ______ be too selfish. A. have to; don’t have to B. should; shouldn’t C. should; have to D. have to; must 三、句型转换 1.You should tell your coach the truth.（改为否定句） You ________ ________ your coach the truth. 2.They have to finish the task today.（改为一般疑问句并作肯定回答） —________ they ________ finish the task today? —Yes, they ________. 3.She has to get up at 6:00 every morning.（改为否定句） She ________ ________ ________ get up at 6:00 every morning. 4.We should work together as a team.（改为同义句） We ________ ________ work together as a team. 5.The team must follow the rules.（改为同义句,用 have to） The team ________ ________ the rules. 6.He has to walk to school every day.（改为一般疑问句） ________ he ________ ________ walk to school every day? 7.You should make friends with your teammates.（改为一般疑问句） ________ ________ make friends with your teammates? 8.They had to stay at home yesterday.（改为否定句） They ________ ________ ________ stay at home yesterday. 9.I should share my ideas with the group.（对划线部分提问） ________ ________ you ________ with the group? 10.We have to get ready for the match.（对划线部分提问） ________ ________ you ________ ________ do? 四、句子翻译 根据中文提示，完成英文句子，每空一词。 1.作为团队一员，你应该互相帮助。 As a team member, you ________ ________ each other. 2.我们不得不遵守所有的团队规则。 We ________ ________ follow all the team rules. 3.你不应该在训练中犯错。 You ________ ________ make mistakes in training. 4.他每天不得不早起参加训练。 He ________ ________ get up early for training every day. 5.大家都应该相信自己的队友。 Everyone ________ ________ their teammates. 6.他们不必现在完成这项工作。 They ________ ________ ________ finish the work now. 7.你应该多和队友交流。 You ________ communicate more with your teammates. 8.因为大雨，我们昨天不得不取消比赛。 We ________ ________ cancel the match because of the heavy rain yesterday. 9.我们不应该和队友争吵。 We ________ argue with our teammates. 10.每个队员都必须尽自己最大的努力。 Every team member ________ ________ try their best. Unit4 Helping out(must/may/can) 一、can /can't *表能力：能/会 I can swim. 我会游泳 *表许可：可以（口语常用） I can help you.我可以帮你。 *表否定推测：不可能（语气强）I can’t run fast. 我跑不快。 *一般疑问：Can you...? 回答：Yes, I can. / No, I can't. 二、may /may not *表委婉请求许可：可以（正式、礼貌） *疑问：May I...? 肯定回答：Yes, you may/can. *表可能性推测：也许、可能（把握不大） *否定：may not 也许不 三、must /mustn't must *表主观必须、义务：必须、一定要 *表肯定推测：一定、肯定（把握很大） mustn't表禁止、不准（绝对不允许做） 重点考点 问句：Must I...?（我必须…… 吗？） 否定回答：No, you don't have to. / No, you needn't.（不用，不必） ❌ 不能用 mustn't（mustn't 是 “禁止”） 四、情态动词表推测 must：一定（肯定推测，把握大） may：也许（可能性一般） can't：不可能（否定推测，语气强） 【总规则】以上情态动词（should/have to/must/may/can）后面一律+动词原形 【测评练习】 一、用 can /may/must 的适当形式填空 1.Look at the sign! You ______ park your car here. 2.—______ I sit beside you? —Of course you ______. 3.All volunteers ______ wear uniforms when they work. It’s a rule. 4.He ______ swim, so he never goes to the swimming pool. 5.It ______ snow tonight. The weather report says so. 6.You ______ talk with strangers freely when you do volunteer work outside. 7.We ______ try our best to help people in need. 8.—______ I leave early today? —I’m afraid you ______. We still have lots of work. 9.My brother ______ play the piano very well. He learns it for years. 10.The door is locked. They ______ be in the room. 11.You ______ finish the work today. You have no time tomorrow. 12.Children ______ play near the river. It’s very dangerous. 13.If you are tired, you ______ have a rest first. 14.She ______ be at school. Today is Sunday. 15.You ______ ask the teacher if you have any questions. 二、单项选择 1.—______ I borrow your storybook? —Sure, you ______. But you ______ return it in three days. A. Can; can; must B. Must; can; may C. Can; must; may D. May; may; can 2.You ______ speak loudly in the hospital. It’s not polite. A. can’t B. may not C. mustn’t D. needn’t 3.—______ I help you carry the heavy box? —Thank you. You ______ so many things today. A. Must; can B. Can; may C. May; must D. Can; must 4.The light is on. He ______ be at home now. A. can B. may C. must D. need 5.—Could I use your pen? —Yes, you ______. But you ______ lose it. A. can; can’t B. could; mustn’t C. may; may not D. can; mustn’t 6.You ______ finish your volunteer work first before going out to play. A. can B. may C. must D. could 7.—Is Tom in the classroom? —He ______ be there. I saw him go to the library just now. A. mustn’t B. can’t C. may not D. needn’t 8.It ______ rain this afternoon. You ______ take an umbrella with you. A. may; may B. must; can C. may; must D. can; must 9.—Must I clean the classroom right now? —No, you ______. You ______ do it after school. A. mustn’t; may B. needn’t; may C. can’t; can D. needn’t; must 10.Everyone ______ follow the rules when doing volunteer work. A. can B. may C. must D. could 11.—______ I come in? —Come in, please. A. Must B. Can C. May D. Should 12.Don’t worry. You ______ ask the volunteers for help if you get lost. A. can B. must C. have to D. need 13.The little girl ______ swim when she was five, but now she ______. A. can’t; must B. couldn’t; can C. couldn’t; may D. can’t; can 14.There ______ be something wrong with his bike. It doesn’t work. A. may B. can C. must D. could 15.You ______ touch the wet wire. It’s dangerous. A. may not B. can’t C. mustn’t D. needn’t 16.—Where is Lucy? —She ______ be in the community centre. She often helps others there. A. must B. can C. need D. have to 17.You ______ not waste food while volunteering in the old people’s home. A. can B. may C. must D. could 18.—______ we help the old man cross the road? —Good idea. We ______ do something to help others. A. Can; must B. Must; can C. May; may D. Need; can 19.He ______ speak French, so he ______ help the foreign visitors. A. can; can B. may; must C. must; can D. can; must 20.It’s too late. You ______ go home alone. You ______ wait for your parents. A. can’t; must B. mustn’t; can C. may not; may D. needn’t; must 三、句型转换 按要求改写句子，每空一词。 1.You must finish the volunteer work today.（改为否定句） You ______ ______ the volunteer work today. 2.May I open the window?（作否定回答） ______, ______ ______. 3.He can help the blind man carry bags.（改为一般疑问句） ______ he ______ the blind man carry bags? 4.They must stay here until 5 o’clock.（改为一般疑问句并作肯定回答） —______ they ______ here until 5 o’clock? —Yes, ______ ______. 5.The girl may be in the library.（改为否定句） The girl ______ ______ in the library. 6.You can take this seat.（改为否定句） You ______ ______ this seat. 7.Must I hand in the report now?（作否定回答） ______, ______ ______. 8.We can help clean up the park.（对划线部分提问） ______ ______ you ______? 9.They may go to help the homeless people.（改为一般疑问句） ______ they ______ to help the homeless people? 10.You must keep quiet in the reading room.（改为同义句） You ______ ______ keep quiet in the reading room. 四、完成句子 根据中文意思补全英文句子，每空一词。 1.你可以向志愿者们寻求帮助。 You ______ ______ help from the volunteers. 2.我们必须关爱身边的老人。 We ______ ______ the old people around us. 3.他不可能知道这件事。 He ______ ______ about this thing. 4.今天下午可能会刮风。 It ______ ______ windy this afternoon. 5.你不许在公共场合乱扔垃圾。 You ______ ______ rubbish in public. Keys Unit3 一、用 should/have to 的适当形式填空 1.should 2. has to 3. shouldn’t 4. had to 5. should 6.doesn’t have to 7. should 8. had to 9. shouldn’t 10. has to 二、单项选择 1.B 2. B 3. A 4. C 5. B 6.A 7. B 8. A 9. A 10. B 三、句型转换 1.shouldn’t tell 2.Do; have to; do 3.doesn’t have to 4.ought to 5.has to follow 6.Does; have to 7.Should you 8.didn’t have to 9.What should; share 10.What do; have to 四、句子翻译 1.should help 2.have to 3.should not 4.has to 5.should trust 6.don’t have to 7.should 8.had to 9.shouldn’t 10.has to Unit4 一、用 can /may/must 的适当形式填空 1.mustn’t 2.May/Can; may/can 3.must 4.can’t 5.may 6.mustn’t 7.must 8.May/Can; can’t/mustn’t 9.can 10.can’t 11.must 12.mustn’t 13.may/can 14.can’t 15.can/may 二、单项选择 1.A 2.C 3.D 4.C 5.D 6.C 7.B 8.C 9.B 10.C 11.C 12.A 13.B 14.C 15.C 16.A 17.C 18.A 19.A 20.A 三、句型转换 1.mustn’t finish 2.No; you can’t / No; you mustn’t 3.Can; help 4.Must; stay; they must 5.may not be 6.can’t take 7.No; you needn’t / No; you don’t have to 8.What can; do 9.May; go 10.have to 四、完成句子 1.can ask 2.must love/care for 3.can’t know 4.may be 5.mustn’t throw 2 / 2 学科网（北京）股份有限公司 $