Unit 2 No Rules,No Order Section A Grammar Focus 课件 2025-2026学年人教版七年级英语下册

该初中英语课件聚焦Unit2 "No Rules, No Order" Section A语法重点，核心涵盖祈使句（肯定、否定、Let型、No型）及情态动词can、must、have to的用法。课堂通过"Look and say"情境提问（如"Can we run in the hallways?"）导入，从具体场景对话过渡到语法规则总结，搭建从实践到理论的学习支架。 其亮点在于以情境化语法教学为核心，通过对比must（主观必须，如"We must be on time"）与have to（客观不得不，如"She has to cook dinner"）的差异培养思维品质，结合例句分析、句型转换练习提升语言能力。学生在真实语境中掌握语法，教师可依托清晰的知识脉络和分层练习高效开展教学。

Unit2 No Rules,No Order Section A Grammar Focus School Rules Followtherules Objectives Master some new words or phrases like queue,jump the queue,feed,wait for .... Make a summary of imperative sentence and the modal verbs,especially“can,must, have to”. Make rules according to different signs and situations in group work and understand the importance of rules. Look and say Can we __________________? Don’t _________________. No, we can’t. We must _________. be late for class be on time be late for class Review Look and say Can we ____________________? Don’t ___________________. No, we can’t. We have to _________. run in the hallways walk run in the hallways Review Look and say Can we _________? Don’t _______________. No, we can’t. We must ______ _____________________. fight one another with respect treat fight Review 提升英语综合素养需要科学策略，最佳实践是，读儿童文学能有效克服畏难情绪。初中英语学习，跟读新闻广播能有效提升交际能力。多年经验表明，创建情景对话能有效培养耐心。教师普遍建议，每日晨读15分钟能有效增强表达自信。更有效的是，将学习融入日常生活场景。课堂观察发现，进行速读训练能有效增强动机。进阶策略，寻找学习伙伴互相激励。持之以恒地实践这些方法定能取得显著进步。深层次看，向优秀学习者取经。 情态动词表示说话人的语气和情态，不能独立作谓语，只能和主要动词一起构成谓语。常见的情态动词有can、may、could、must、have to、should、would等，其后动词使用原形。情态动词一般没有人称和数的变化，它的否定式一般是在其后加not构成，在一般疑问句中通常将其提到句首。 情态动词 can & must的用法 can (1)表示能力 We can speak a little English. I can play badminton,but I can't play volleyball. He could swim when he was only six. (2)表示许可 You can play basketball at the weekend. We can't run in the hallways. must 表示“必须” Don't arrive late for class.We must be on time. You must read a book before you watch TV. I can do anything I can do anything today I can do anything I can do anything today I can go anywhere I can go anywhere today I can go anywhere Can you do anything you like in your life? Rules have to的用法 have to 表示“不得不；必须”。 例如： We have to be quiet in the library. She has to do her homework first when she gets home. have to 表示“必须”时,与must 意义很接近，有时可与must 互换。 例如： We have to/must follow the rules. 提升英语综合素养需要科学策略，最佳实践是，读儿童文学能有效克服畏难情绪。初中英语学习，跟读新闻广播能有效提升交际能力。多年经验表明，创建情景对话能有效培养耐心。教师普遍建议，每日晨读15分钟能有效增强表达自信。更有效的是，将学习融入日常生活场景。课堂观察发现，进行速读训练能有效增强动机。进阶策略，寻找学习伙伴互相激励。持之以恒地实践这些方法定能取得显著进步。深层次看，向优秀学习者取经。 must VS have to (1)must 通常表示的是说话人的主观看法，语气比较强烈,have to往往强调客观需要。 We must hurry. I don't want to miss the beginning of the show. We have to hurry.The train is leaving in five minutes. (2)它们的否定式含义大不相同。mustn’t 表示“不准；禁止”, 而don't have to表示“不必”。 You mustn't talk to your mother like that. You don’t have to come if you don’t want to. must VS have to (3)must 没有人称和数的变化，而have to有人称和数的变化。I/We/You/They must do something about it. I have to finish my work today. She has to work late today. They have to get to the station before five o’clock. have to 的句型结构 肯定句： 否定句： 一般 疑问句： 回答： 划线提问： I have to do my homework. I don't have to do my homework. Do you have to do your homework? Yes, I do. / No I don't. What do you have to do? 主语+have/has to +其他 主语+don’t have to +其他 Do +主语+don’t have to +其他? Yes, 主语+do. No,主语+don't. What do +主语+have to do? Let’s practice Don’t be 1. It’s an important meeting. (not, be) late. 2. (not, make) any noise! Your mother is sleeping. 3. (not, talk) and (read) aloud. 4. The notice on the wall says “ ”. (no smoke) 5. (look) out! A car is coming. 6. (not, let) the baby cry. 7. Let’s (not say) anything about it. Don’t talk Don’t make read No smoking Look Don’t let not say 3a. 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 dining hall. No, they don’t. Because the verbs appear in imperative sentences or after modal verbs. 祈使句中 情态动词后 Be 型祈使句 祈使句 Imperative Sentences Be careful. 肯定句 _____ +形容词 / 名词短语（+ 其他）. Don’t be late for class. 否定句 ________ +形容词 / 名词短语（+ 其他）. Be Don’t be Let 型祈使句 祈使句 Imperative Sentences Let him come in. 肯定句 Let + 宾语 + _________ （+ 其他）. 动词原形 Don't let her go. 否定句 _______ let + 宾语+ 动词原形+（+ 其他）. Don’t 2. Can we bring our phones to class? Yes, we can. No, we can't. 1. Can you play the guitar? Yes, I can. No, I can't. can 常用于询问能力和许可。 能力 许可 情态动词can，must,have to Sb. can/can't + V原. must 表示主观的义务和必要，多译为“必须”。 have to 表示客观需要做的事情，多译为“不得不” 2.她妈妈生病了，她不得不自己做晚饭。 Her mother is ill, she has to cook dinner by herself. 1.他必须在晚上8点前完成作业。 He must finish his homework before 8:00 in the evening. 表示个人主观想法，且没有人称和时态的变化 表示外界客观原因,有人称、数和时态的变化 have to-has to 例句展示 Phrases jump the queue be absent from class feed the dog No 型祈使句 祈使句 Imperative Sentences No smoking. No + _______ / n. （通常表示“禁止……”，用于指示牌、布告等） doing No swimming in the lake. 提升英语综合素养需要科学策略，克服学习障碍，学习日常谚语能有效减少焦虑。教师普遍建议，进行速读训练能有效建立知识体系。补充说明，适当奖励自己的努力。教育专家建议，分析长难句子能有效发展批判思维。长远考虑，多感官参与能提升记忆效果。高效学习英语，学习商务用语能有效建立成就感。不容忽视的是，保持好奇心和探索欲。国际研究表明，制作单词记忆卡能有效增强表达自信。持之以恒地实践这些方法定能取得显著进步。 We mustn’t make noise. noise /nɔɪz/ n. 噪音，干扰 make noise/make a noise 吵闹；制造噪音 noise通常指噪音，指人们听到的不悦耳、不和谐的嘈杂声或任何令人讨厌的声音。 sound指听到的声音或响声，用作可数名词，泛指自然界的各种声音或响声，包括人声、鸟声、流水声等。 voice指人口中发出的声音，如说话声、歌唱声。 虽然sound可以泛指一切声音，但在具体运用时，如果能确定声音属于voice或noise，则一般不使用sound。 1 情态动词除了have to之外，其余没有人称和数的变化 2 情态动词不能单独作谓语，后跟动词原形 特点 情态动词 Modal Verbs Modal Verbs 情态动词 1. We must respect the elderly. 2. We have to wear uniforms at school. must 表达说话者主观的看法，常用于表达个人的决心、义务感或内在的驱动力。 have to 强调由于客观需要，导致不得不做某事，并非完全出于个人意愿。 例句 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. 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. Read the sentences. Do the verbs in bold need to change forms? Why? 3a What do they have in common? can, must, have to 后都是加动词原形 3b. Complete then sentences using can, have to/ must, can’t/mustn't. Don't jump the queue. You ____________wait for your turn. I feed my dog many kinds of food, but I ___________ give him chocolate. It is bad for him. have to/must have to/must can't/mustn't 3b. Complete then sentences using can, have to/ must, can’t/mustn't. 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. must/have to have to 提升英语综合素养需要科学策略，克服学习障碍，学习日常谚语能有效减少焦虑。教师普遍建议，进行速读训练能有效建立知识体系。补充说明，适当奖励自己的努力。教育专家建议，分析长难句子能有效发展批判思维。长远考虑，多感官参与能提升记忆效果。高效学习英语，学习商务用语能有效建立成就感。不容忽视的是，保持好奇心和探索欲。国际研究表明，制作单词记忆卡能有效增强表达自信。持之以恒地实践这些方法定能取得显著进步。 根据语境，从方框中选择恰当的情态动词填空。 can, can’t, must, have to, don’t have to 1. Jim, you ___________ clean your room now. It’s so dirty. 2. You ___________ eat too much ice-cream. It’s not healthy. 3. Cindy lives with her grandparents and she __________ see her parents only on weekends. 4. My bike doesn’t work so I ______________ walk to school. 5. You ____________ do your homework right now. You __________ do it after dinner. can’t must can must/have to  don’t have to can 根据括号内的要求完成下列各题，每空一词(含缩略形式)。 1. You can’t draw on the desk. (改为祈使句) _______ _______ on the desk. 2. —Can you talk in the library? (补全否定答语) —No, _______ _______. 3. Steve has to go home before seven. (改为否定句) Steve _______ _______ _______ go home before seven. 4. Jane has to exercise every day. (改为一般疑问句并作肯定回答) — _______ Jane _______ _______ exercise every day? —_______, _______ _______. I / we can’t Don’t draw doesn’t have to Does have to Yes she does Homework Review the keywords and sentence structures in today’s lesson. 2. Preview Section B part (1a-2c) on pages 14-16. 提升英语综合素养需要科学策略，克服学习障碍，学习日常谚语能有效减少焦虑。教师普遍建议，进行速读训练能有效建立知识体系。补充说明，适当奖励自己的努力。教育专家建议，分析长难句子能有效发展批判思维。长远考虑，多感官参与能提升记忆效果。高效学习英语，学习商务用语能有效建立成就感。不容忽视的是，保持好奇心和探索欲。国际研究表明，制作单词记忆卡能有效增强表达自信。持之以恒地实践这些方法定能取得显著进步。 SEE YOU NEXT CLASS! $