Unit2 Section A Grammar Focus-【名校作业】2025-2026学年七年级下册英语同步课件（人教版·新教材）

该初中英语课件聚焦七年级Unit 2“祈使句和情态动词”语法点，通过视频“Lead in: Do you know the rules?”导入，引导学生观察例句（如“Walk in the hallway”“Don’t run”）分析动词形式，构建“观察-归纳-应用”学习支架，帮助学生理解语法规则。 其亮点是以“规则”主题串联教学，结合情境化例句（学校、图书馆等场景）和任务型活动（小组设计场所规则并画标志），培养语言能力与思维品质。课堂总结梳理祈使句类型和情态动词用法，当堂检测通过选择、改写句子巩固知识，提升学生语言运用能力，也为教师提供系统教学流程与多样化活动支持。

23002 Grammar Focus Unit 2 No Rules, No Order Section A What rules do we follow? 23002 学习目标 能够通过观察和分析示例句子，深入理解并准确辨析祈使句和情态动词的表意功能 能够熟练运用祈使句和情态动词谈论规则 23002 Lead in Let’s enjoy a video! Do you know the rules ？ 23002 新课讲授 3a Read the sentences. Do the verbs in bold need to change forms? Why? 在 祈使句中 和 情态动词后，动词均用原形。 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 dining hall. 祈使句中 情态动词后 Do the verbs in bold need to change forms? Why? 23002 Imperative Sentences(祈使句) 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. 祈使句一般用来表示命令、请求、劝说、号召、警告、禁止等。 1.什么是祈使句？ 23002 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. 1.通常省略主语you。 2.其肯定形式常以动词原形开头，否定形式是在动词原形前加don’t。 3.祈使句句尾用句号或感叹号。 2. 祈使句的特点？ 23002 肯定式 Turn back! Go to bed now! Do型：动词原形+其他 Be quiet, please! Be careful! Be型：Be+其他 Let’s go! Let’s have a rest! Let型：Let sb do+其他 3. 祈使句的类型？ 23002 否定式 Don’t be late! Don’t smoke here! Don’t let him leave! Don’t型 Don’t be+其他 Don’t do+其他 Don’t let+其他 No photos! No smoking! No型 No+n. No+v.ing 23002 Summary 祈使句一般用来表示请求、命令、劝说、号召、警告等。在祈使句中，通常省略主语you，其肯定形式常以动词原形开头，否定形式是在动词原形前加don’t。祈使句句尾用句号或感叹号，读时用降调。为表示礼貌，可以在句首或句末加上please。句末用please时，前面通常加逗号。 23002 Modal Verbs (情态动词) 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 dining hall. 1. 出现了哪些情态动词？ can, must, have to 23002 含义：情态动词用于表达说话人的态度、意愿、推测、建议、能力、义务等。没有人称和数的变化； 后面必须跟动词原形来构成完整的谓语。 2. 情态动词的含义? 23002 情态动词can的用法 can可表示能力、许可、请求等。其否定形式为can’t/ cannot. eg. I can speak a little French. 我会说一点法语。（能力） We can’t run in the hallways.我们不能在走廊上奔跑。（许可） Can you help me? 你能帮助我吗？（请求） 3. 情态动词的用法? 23002 情态动词must的用法 常表示说话人的主观看法，多译为“必须”；没有时态、人称和数的变化。must的否定形式为mustn’t，表示“禁止，不准”。 eg. Must I finish my homework before eight o’clock ? Yes, you must. No, you mustn’t. No, you needn’t.No, you don’t have to. mustn’t 表示禁止：不许 23002 情态动词have to的用法 have to表示不得不。常强调客观需要。有时态、人称和数的变化，其否定形式为don’t have to。 1. 肯定句：主语+_____________+___________. 2. 否定句：主语+ _____________ have to+__________. 3. 一般疑问句：__________+ 主语+ have to+__________? 回答：Yes, 主语+_________./No, 主语+____________. do/does don’t/doesn’t have/has to 动词原形 动词原形 动词原形 Do/Does don’t/doesn’t 23002 3b Complete the sentences using can, have to / must, or can’t / mustn’t. 1. Don’t jump the queue. You ______________ wait your turn. 2. I _____ feed my dog many kinds of food, but I _______give him chocolate. It is bad for him! 3. A: Can I leave the classroom if I don’t feel well? B: Yes, but you ___________ tell your teacher about it when you ______ be absent from class. 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! have to / must can have to / must have to can’t have to/must have to/must 插队 等待你的顺序 缺席 系上安全带 23002 3c 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. 23002 Do not park here. No parking. You can’t / mustn’t park here. Do not take photos here. No photos. You can’t / mustn’t take photos. 23002 Do not swim here. No swimming. You can’t / mustn’t swim here. Do not feed birds. No feeding. You can’t / mustn’t feed birds. 23002 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 dining hall park cinema hospital In the library, we must keep quiet. We mustn’t make noise. We can’t... 23002 课堂总结 祈使句 肯定：1.Do型：动词原型+其他 2.Be型：Be动词 + 形容词 3.Let型：Let's + 动词原型+其他 否定：1.Don't型：Don't + 动词原型 2.No型：No + 动名词 / 名词 3.Let型：Let's + not + 动词原型 can, must, have to 情态动词 23002 当堂检测 1．— Must we sing a song at the party? — No, you ________. A．mustn’t B．haven’t to C．not have to D．don’t have to 2．It’s snowing. Please ________ warm clothes. A．wear B．wears C．wearing D．to wear 3．________ in bed. It’s bad for your eyes. A．Not to read B．Don’t to read C．Don’t read D．Not read 4．It’s 7:15. Let’s ________ to school. A．to go B．going C．go D.gone D A C C 一、单项选择 23002 1.You must wear a uniform at school.（改为否定句） ___________________________________________________ 2.We can listen to music in the classroom.（改为一般疑问句，并作否定回答） ___________________________________________________ 3.Don't talk in the library.（改为同义句） ___________________________________________________ 4.He has to get up early.（改为一般疑问句） ___________________________________________________ 5.Let's play basketball after school.（改为否定句） ___________________________________________________ 二、根据要求改写句子 You mustn't wear a uniform at school. Can we listen to music in the classroom? No, we can’t. You mustn't talk in the library. Does he have to get up early? Let's not play basketball after school. 23002 Thank you ! 23002 Lavf57.83.100 $