Unit 2 No Rules, No Order 第3课时 Section A（Grammar Focus）（同步课件）-【大单元教学】2024-2025学年七年级英语下册同步备课系列（人教版2024）

Unit 2 No Rules, No Order 第三课时（语法课） Grammar Focus 本课学习目标 本节课结束时，学生能够： 1. 学生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。 2. 学生能够掌握并运用祈使句和情态动词表达规则，同时能够关注表示命令时的委婉的语气。 3. 学生能够熟练运用祈使句和情态动词介绍规则，并在班级活动中积极参与“绘制规则标识”游戏，最终评选出表现最佳的团队。 按要求写出正确的单词、词组或句子。 每件事 (代词) __________ 2. 糖果 (名词) ___________ 3. 零食(名词) __________ 4. 当然(短语) __________ 5. 手机(短语) __________ 6. 关掉 (短语) __________ 7. 想要做某事（短语）__________ 8. 接电话（短语）___________ 9. 一切都好吗？ ___________________________ 10. 我们禁止把手机带到班级。 _______________________ 11. 这是另一条规则。___________________ 12. 感谢你告诉我。 ________________________________________ everything sweet lovely of course mobile phone turn off would like to do answer the phone Is everything Ok? We mustn’t bring our mobile phone to class. That’s another rule. Thanks for telling me. 上节要点回顾 Let’s watch and answer. Do you know the rules ？ Look at these signs and guess their meanings. No fishing! Don’t pick the flowers. You mustn’t smoke here. 3a Read the sentences. Do the verbs in bold need to change forms? Why? Grammar Foucs 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. No, they don’t. Because the verbs appear in imperative sentences or after modal verbs. 祈使句 (Imperative sentences) 一、含义 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。 二、主要类型 Walk in the hallway. Don’t run! 祈使句类型 1. Do型祈使句 肯定句：实义动词原形(+宾语)(+其他). 否定句：Don’t +实义动词原形(+宾语)(+其他). Be polite and treat one another with respect. Don’t be sad! 祈使句类型 2. Be型祈使句 肯定句：Be+表语(+其他). 否定句：Don’t+be+表语(+其他). 二、主要类型 Let’s go. Let us go. 祈使句类型 3. Let型祈使句 肯定句：Let+宾语+动词原形(+其他). 否定句：Don’t+let+宾语+动词原形(+其他). 或Let +宾语+not+动词原形(+其他). 二、主要类型 No smoking ! 禁止抽烟! Don’t be sad! 祈使句类型 4. No+ 动词-ing/名词! 多为公共场合的提示语。 5. Never +动词原形! 多用来加强语气。 二、主要类型 情态动词 (modal verbs) 一、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。 情态动词can的用法 Can we bring our phones to class? No,we can’t. We must keep them in our lockers. can可表示能力、许可、请求等。其否定形式为can’t/cannot。 1.表示能力，意为“能，会”。 2.表示许可，意为“可以”。 3.表示请求，意为“可以”。 情态动词have to和must的用法 No,we can’t. We must keep them in our lockers. No,we can’t eat in class. We have to eat in the dining hall. have to ①常强调客观需要,多译为“不得不”； ②有时态、人称和数的变化，其一般现在时的第三人称单数形式为has to，过去式为had to。have to的否定形式为don’t have to，表示“不必”。 must ①常表示说话人的主观看法，多译为“必须”； ②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”。 情态动词Have to have to表示不得不。常强调客观需要。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+__________? 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 1．—Can you speak English, Ling ling? —Yes, I ________. A．must B．can C．should D．may 2．Lucy is good at basketball. She ________ play basketball very well. A．can B．can’t C．may D．need 3．－Mary, _________ you speak Chinese? －Yes, only a little. A．must B．can C．need D．should 4．Come and ________ us! A．join B．joins C．joining D．to join 单项选择 B A B A 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! Complete the sentences using can, have to / must, or can’t / mustn’t. have to / must can have to / must have to can’t have to/must have to/must 3b jump the queue 插队 wait your turn 等待你的顺序 feed my dog 喂狗 leave 离开 be absent from 缺席 quietly 安静地 put on the seat belt 系上安全带 1. Can I leave the classroom if I don’t feel well? leave v. 离开；把......留下 【翻译】 1. The plane leaves for China at 12 a.m. 2. I don’t want to leave homtown. 3. We are going to leave our city for Shenzhen. 4. I left my keys on the bus. leave sp. leave for sp. leave A for B leave sb./ sth. 【用法】 离开某地 动身去某地（目的地） 离开A地去B地 把某人/某物落下 飞机于上午12点前往中国。 我不想离开家乡。 我们将要离开我们的城市去深圳。 我把钥匙忘在公交车上了。 Language points 用法 例句 feed raise 2. I can feed my dog many kinds of food feed v. 喂养；饲养 【辨析】feed & raise feed...(食物)to...(动物) feed...(人或动物)with...(食物) feed on... 【用法】 把......喂给......吃 用......喂...... 以......为食，靠......为生 （主语多为动物或婴儿） 主要强调“喂养”“给（人）”提供食物，侧重具体喂食动作。 当意思为“养育；抚养”时，侧重整体培育成长的过程。 Can you feed the cat, please? They raised three children. Language points 3. ... when you have to be absent from class. absent adj. 缺席的；不在的 【解析】反义词为 present“出席的，在场的”。 be absent from 缺席 eg. I was absent from the meeting. 我缺席了这次会议。 【拓展】absence adj. 缺席 eg. I don’t know his absence today. 我不知道他今天缺席。 Language points 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. 3c Look at the first sign and read the rules. Then write the rules for the other signs. 3c 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. Look at the first sign and read the rules. Then write the rules for the other signs. 3c 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. 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. In the library, we must keep quiet. We mustn’t make noise. We can’t... library school dining hall park cinema hospital 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. Keep Quiet While Eating This rule tells that students can enjoy their meals in a peaceful environment without being disturbed by loud noises. 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. No Food or Drinks Outside the Dining Area This rule helps maintain cleanliness and order in the school, preventing food and drink spills in areas where they are not meant to be consumed. 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. Clean Your Tray and Table After Eating This rule promotes responsibility and cleanliness among students, ensuring that the dining hall remains tidy and pleasant for everyone to use. 3d 自我检测 按要求写出正确的单词、词组或句子。 插队(短语) __________ 2. 喂养 (动词) ___________ 3. 离开(动词) __________ 4. 缺席(短语) __________ 5. 轻声地(副词) __________ 6. 座椅安全带 (短语) __________ 7. 制造噪音（短语）__________ 8. 电影院（名词）___________ 9. 在走廊里步行。 ___________________________ 10. 我们能把手机带到学校吗？ _______________________ 11. 我们不得不在餐厅吃东西。___________________ 12. 你能戴上座椅安全带吗？ ________________________________________ jump the queue feed leave be absent from quietly seat belt make noise cinema Walk in the hallway. Can we bring the phones to class? We have to eat in the dinning hall. Can you put on your seat belt? 1. They can play the violin and the drums. （对画线部分提问） ________ __________ they _________? 2. You can go swimming with us this afternoon.（改为一般疑问句） _______ you _______ swimming with us this afternoon? 3. —Must I keep the window open all day? （作否定回答） —No, you ___________________. Can What can 根据要求完成句子 do go needn’t / don’t have to 自我检测 1. — Max, ______be afraid of speaking in front of people. You are the best! — OK, I won’t. A. doesn’t B. not C. isn’t D. don’t 2. — _______ I take photos here? — Sorry, you can’t. A. Must B. Need C. Can D. Will 3. Look! The sign on the wall says, “No _______!” A. smoke B. to smoke C. smoked D. smoking D 单项选择 C D 自我检测 根据要求改写句子 You must wear a uniform at school.（改为否定句） We can listen to music in the classroom.（改为一般疑问句，并作否定回答） Don't talk in the library.（改为同义句） He has to get up early.（改为一般疑问句） Let's play basketball after school.（改为否定句） 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. 自我检测 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 自我检测 用所给单词的适当形式填空 ______ (not be) late for class. You must ______ (wear) your school uniform on Monday. Can you ______ (bring) your book to me? We have to ______ (clean) the classroom after school. Let him ______ (go) home first. Don't be wear bring clean go 自我检测 $$null