Unit 2 第3课时 Section A(3a-3d)-课件2025-2026学年人教版英语七年级下册

人教版英语7年级下册培优精做课件 Unit 2 No Rules, No Oeder 授课教师： Home . 班 级： 7年级（*）班 . 时 间： . 2026年2月22日 Unit 2 第3课时 Section A(3a—3d) 2026年2月22日星期日9时51分54秒 2026年2月22日星期日9时51分55秒 Don’t run in the hallways Arrive on time Be quiet in the library. No fighting! Wear the school uniform. … Brainstorm School rules Grammar Focus Read the sentences. Do the verbs in bold need to change forms? Why? Walk in the hallway. Don’t run! Be polite and treat one another with respect. Don’t litter. / You mustn’t litter. / You can’t litter. Can we bring our phones to class? No, we can’t. We must keep them in our lockers. Can we eat snacks in class? No, we can’t eat in class. We have to eat in the dinning hall. Imperatives and Modal verbs(can, have to, must). 肯定祈使句 否定祈使句 情态动词 3a 规则的表达方式 Imperative sentences : Affirmative 肯定祈使句 Imperative sentences：Negative 否定祈使句 can / can’t must have to 1.祈使句 祈使句一般用来表示请求、______、劝说、号召、_____等。在祈使句中，通常省略_____________。肯定式以___________开头，否定式在动词原形前加______。 命令 警告 主语you 动词原形 don’t Observe and find 2.祈使句的类型 （1）Do型祈使句 例句：Walk in the hallway. Don’t run! （2）Be型祈使句 例句：Be polite and treat one another with respect. （3）Let 型祈使句 （4）其他类型的否定祈使句 No + v.-ing ! / No + n. 表示禁止 No parking here! No photos! never代替don’t， 加强语气。 Never give up! Let’s see the lions. Let him come in. 二 三 四 五 一 六 七 一、根据提示完成单词。(5分) 1. She can’t sleep well because there is too much ________ (噪音)next door. 2. When we are in a car, we must wear our seat ________(安全带). 3. My father has a big farm, and he ________(喂养) lots of animals every day. noise belts feeds 中考考法 4. When we are in the school library, we should walk __________(轻声地). 5. Jim usually ________(离开)his home at 7:30 and gets to school at 7:50. 二 三 四 五 一 六 七 quietly leaves 中考考法 3. 情态动词can, have to, must can have to must 含义 表能力，意为 “能；会” 表请求、许可，意为“可以” 不得不；必须 必须 例句 I can play badminton, but I can’t play the piano. We have to be quiet in the library. Don’t arrive late for class. We must be on time. 共同点 后跟动词原形 后跟动词原形 后跟动词原形 【拓展】 （1）have to与must的相同点 二者均可表示“必须”，后接动词原形，有时可以互换。 We have to / must follow the rules. （2）have to与must的不同之处 I must go now. 我现在必须走了。 must表示说话人的主观看法，语气较强烈 It’s too late and I have to go. 天太晚了，我不得不走了。 have to 往往强调客观需要 You mustn’t talk to your mother like that. 你不准和你妈妈那样说话。 mustn’t 表示“不准；禁止” You don’t have to come if you don’t want to. 如果你不想来就不必来。 don’t want to 表示 “不必” （2）have to与must的不同之处 I / We / You / He / She / It /They must arrive there today. 我/我们/你/你们/他/她/它/他们今天必须到那儿。 must无人称和数的变化 I have to clean my room today. 今天我不得不打扫我的房间。 She has to clean her room too. 她也不得不打扫她的房间。 have to 有人称和数的变化 二 三 四 五 一 六 七 二、用can, have to/ must，can’t或 mustn’t填空。 6. I like doing morning exercises. It __________ help me keep healthy. 7. You _________ play soccer on the road! It’s too dangerous. 8. — __________ I clean the room now? —No, you needn’t. You can do it this evening. can mustn't Must 中考考法 9. They ________ get up early in the morning to take some beautiful pictures of the sunrise (朝霞). 10. Helen ________ go shopping with me because her mother needs her to help with housework. 二 三 四 五 一 六 七 have to can't 中考考法 Don’t jump the queue. You _______ wait for your turn. 2. You________ just ask your teacher a question in class. You _____raise your hand first. 3. A: Can I leave the class if I don’t feel well? B: Yes, but you ______ tell your teacher about it when you _______ be absent from class. Complete the sentences using can, have to / must / mustn’t. 插队 等待 缺席；不在 3b must can must must have to 4. A: Hey! Can I look at your book? B: Shh, we ________ talk quietly in the library. 5. A: Can you put on your seat belt? We ________ wear one when we’re in a car. B: Sure. Thanks! 安全带 must have to 三、句子翻译。(10分) 11.该上课了，不要在教室里制造噪音了。 It’s time for class. Don’t ____________ in the classroom. 12.每天很多人在这家餐厅吃饭。 A lot of people eat __________________ every day. make noise in the dining hall 二 三 四 五 一 六 七 中考考法 13.［鞍山铁西区月考改编］医生现在很忙，所以请你排队等候。 The doctor is busy now, so please __________________. 14.他因为生病而缺课。 ______________________________________________ 15.插队是不礼貌的。 ______________________________________________ wait your turn He is absent from class because he is ill. 二 三 四 五 一 六 七 It is not polite to jump the queue. 中考考法 Look at the first sign and read the rules. Then write the rules for the other signs. •Do not eat or drink. • No eating or drinking. •You can’t / mustn’t eat or drink. •Do not park. • No parking. •You can’t / mustn’t park. •Do not take photos. • No photos. •You can’t / mustn’t take photos. 3c •Do not swim. • No swimming. •You can’t / mustn’t swim. •Do not feed. • No feeding. •You can’t / mustn’t feed. Group work Brainstorm three rules for one of the places below. library We must keep quiet. We mustn’t make noise. Don’t eat or drink in the library. Return books in time. … 3d In groups, brainstorm three rules for one of the places below. Then draw signs to show the rules. Share your signs in class and explain what they mean. library school dinning hall park cinema hospital In the library, we must keep quiet. We mustn’t make noise. We can’t… 3d Evaluation (评价机制) 语言正确 发音标准 使用肢体语言 表现自信 四、按要求完成句子，每空一词(含缩略形式)。 16. My sister can play the piano well.(改为一般疑问句，并作肯定回答) —_________ ________ ________ _________ the piano well? —________, _________ ________. 二 三 四 五 一 六 七 Can your sister play Yes she can 中考考法 17. You must finish your homework now.(改为一般疑问句，并作否定回答) —________ _________ ________ my homework now? —No, _________ ________ _________ ________. 18. Open the door.(改为否定句) ________ _________ the door. Must I finish you don't have to 二 三 四 五 一 六 七 Don't open 中考考法 19. You can’t litter in the library.(改为祈使句) ________ _________ in the library. 20. You should respect and be polite to old people.(改为祈使句) _________ ________ _________ ________ ________ old people. Don't litter Respect and be polite to 二 三 四 五 一 六 七 中考考法 五、根据所给图片及提示词，写出恰当的句子。 21. (not, here) ______________________________________________ 22. (no, eat, drink, hall) _____________________________________________ 二 三 四 五 一 六 七 Don't take photos here./You can't take photos here./ You mustn't take photos here. No eating or drinking in the hallway. 中考考法 23. (not, talk, library) _______________________________________________ 24. (not, in, class) ______________________________________________________________________________________________ Don't talk in the library./You can't talk in the library./ You mustn't talk in the library. Don't listen to music in class./You can't listen to music in class./You mustn't listen to music in class. 二 三 四 五 一 六 七 中考考法 25. (not, lake) ______________________________________________________________________________________________ You mustn't swim in the lake./You can't swim in the lake./Do not swim in the lake. 二 三 四 五 一 六 七 中考考法 六、 语篇填空。 We follow the rules every day. There 26. ______(be) rules for many things we do at home, at school, and in a lot of other places. Think about rules at home. Parents usually make these rules, and they make sure we follow 27. ____________ (they). Parents can ask us 28. __________ (wash) our hands. 二 三 四 五 一 六 七 are them to wash 中考考法 They make other rules about eating unhealthy food, watching TV, or bedtime. There are school rules, too. Teachers and the principal make the school rules. For example, we must arrive 29. __________ school on time. 30. ____________ we have to be late for school, we must tell the teacher about it. And we must wear school 31. ____________ (uniform) on weekdays. We should always be polite and take turns when we play games. 二 三 四 五 一 六 七 at If uniforms 中考考法 Librarians(图书管理员)help us follow the rules in the school library. We must talk 32. __________ (quiet)in the library. If we take our phones with us, we have to turn them 33. __________. Outside school, the crossing guard（ 警卫员）helps us cross the road safely, and we should follow the traffic 34. __________ (rule). These rules help keep us happy and safe. 二 三 四 五 一 六 七 quietly off rules 中考考法 Zoos and other fun places have rules, too. At a zoo, you can’t touch the animals because some animals are very ferocious(凶猛的)and 35. __________ (danger). You should also never feed the animals. It may make the animals sick. 二 三 四 五 一 六 七 dangerous 中考考法 七、［盘锦大洼区月考］阅读与表达。(10分) Schools around the world have rules. Here are some rules in different countries. * Uniforms In the UK, boys wear a shirt and trousers, and girls wear a dress at school. And they can wear sports shoes only in PE class. They must wear black and brown shoes every day. 二 三 四 五 一 六 七 中考考法 In Japan, girls wear short skirts in all seasons. * Good behavior (行为) Students around the world must have good behavior. They must be polite to teachers and classmates. They can’t say bad words or fight (打架) with others. In Canada, if students fight, they have to stay at home for days. 二 三 四 五 一 六 七 中考考法 * Mobile phones In France, China and Japan, students can’t take mobile phones to school. In Australia, students can take phones to school, but they can only use phones before and after school. In the UK, students keep phones in the lockers in class. They can use phones between classes. 二 三 四 五 一 六 七 中考考法 36. When can students in the UK wear sports shoes? _______________________________________________ 37. In Canada, what do students have to do if they fight? _______________________________________________ 38. Where do students in the UK keep their phones in class? _______________________________________________ 二 三 四 五 一 六 七 Only in PE class. They have to stay at home for days. In the lockers. 中考考法 39. What school rules do you have? What do you think of them? Write 30 words or more. ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 二 三 四 五 一 六 七 In my school, we must wear uniforms daily. We can't use mobile phones in class, and we must respect teachers. I think they are strict but helpful and good for our studies. (答案不唯一，合理即可) 中考考法 $