Unit 6 Grammar 课件 2025-2026学年沪教版英语八年级下册

该初中英语课件聚焦情态动词should和had better的用法，通过Lead-in环节回顾can、may、must等已学情态动词，搭建新旧知识联系的学习支架，引导学生自然过渡到新语法点的学习。 其亮点在于以真实对话情境（如张鑫设计海报）引入语法规则，结合生活场景练习（如给演讲比赛提建议），通过对比should与had better的语气差异培养思维品质，任务型练习提升语言运用能力，帮助学生掌握建议表达策略，也为教师提供清晰的教学路径和丰富的实践素材。

Unit 6 Learning by doing 主题范畴：人与自我 主题群：生活与学习 子主题：积极的学习体验，恰当的学习方法与策略，勤学善思 Key question How can we make English learning meaningful and fun? (1) know the grammar rules of modal verbs should & had better. (2) give suggestions to others by using should, should not, had better, had better not etc. Learning objectives 学习目标 After learning, I will be able to: Lead-in Read these sentences and pay attention to the modal verbs. 1. We can use electricity to do many things. 2. — Can you think of an example? — Yes, I can. — No, I cannot / can't. 3. — May / Can I use your mobile phone? — Yes, you may / can. — No, you may not / can't. 4. We must always be careful with electricity. 5. You must not / mustn't do that, Su Mei. 你还知道哪些情态动词？ 情态动词：should 和 had better While-learning Grammar Modal verbs: should and had better P89 Zhang Xin is calling his cousin Zhang Lei for advice on designing a poster. Read the dialogue and pay attention to the words in bold. We can use should to say what is best or right to do. We can use had better to give strong advice in a particular situation. 我们用should来表示做什么是最佳的或正确的；用had better在特定情境中给出强烈的建议。 We use should and had better with the base form of a verb. The negative form of had better is had better not. Let’s sum up the rules! should和had better后接动词原形使用。 had better的否定形式是had better not。 Do you remember the "ought to" we learnt in Unit 5? should not = shouldn't Ought to is similar in meaning to should. You ought to read more English books. had better = 'd better had better not = 'd better not ought to意思上与should相似，翻译为“应该”。两者语气和使用场景区别我们在上个单元已经学习过，总而言之，should为一般语气，适用于大多数场景，ought to语气正式严肃，适用于出于责任义务的提议场景。 Let's learn more! 一、should 的用法 Modal verb: should 1. should在肯定句中可用来讨论义务和职责或提出建议， 意为“应该”。 你应该更注意你的拼写。 You should pay more attention to your spelling. 2. should的否定式为should not , 意为“不应该”。 你不应该在街上踢足球。 You should not play football in the street. 3. should用于疑问句，表示征求意见或请求指示。 — Should I call the police? — Yes, you should. / No, you shouldn't. — 我要报警吗？ — 是的，你应该。/ 不，你不应该。 1. 肯定句：___________________________ 2. 否定句：______________________________ 主语+ should +动词原形+其他 主语+ should not / shouldn't +动词原形+其他 3. 一般疑问句：___________________________ 肯定回答：_____________________________ 否定回答：_____________________________ Should +主语+动词原形+其他? Yes, 主语+ should. No, 主语+ should not / should't. You should pay more attention to your spelling. You should not / shouldn't play football in the street. — Should I call the police? — Yes, you should. / No, you shouldn't. 二、含 should 的常用句式 1. should表示语气婉转，常与say、 think、imagine连用。 我想他有五十多岁了。 ① I should say he's over fifty. ② I should think it's a good idea. ③ I should imagine it will take about two hours. 我想得花大约两个钟头。 依我看，那是一个好主意。 — The total price of these books is 230.5 yuan. — No. That should be 232.5 yuan. Check it again. —这些书的总价是230.5元。 —不是。应该是232.5元。再检查一遍。 3. should 表示更正别人的说法。 2. should 表示惊奇、失望、喜悦、遗憾或愤怒等感情。 真奇怪，他竟然会迟到。 It's strange that he should be late. ② You really should / ought to give up drinking. must的用法与should类似，但语气更强 或更肯定，表示“必须”之意，常含有命令的性质；should和ought to的语气则相对缓和些。 should, ought to & must 你必须戒酒。(可能是医生口吻强调行为的必须性) ① You must give up drinking. 你真的应该戒酒。(可能是亲友口吻的劝告) Let's do the exercises! P90 Ms Chen is writing comments about her students. Help her complete the comments with should or should not and the verbs below. be do make pronounce read think try should not read should pronounce should try should make should not be should do should think You had better not leave your money on your desk. had better 的用法 Modal verb: had better 1. had better 用来表示竭力劝告，或告诉人们（包括自己） 该做什么事，意为“做……是好的；最好还是……”。 你过马路时最好小心一点。 You had better be careful when you cross the street. 你最好不要把钱放在桌子上。 2. 通常用“had better not”表示否定。 — Shall I wash my clothes right now? — You'd better. / You'd better not. — 我现在可以洗衣服吗? — 最好这样。/ 最好不要这样。 had better 用于回答时，通常用简略式。 ★ had better通常并不表示所提的建议比其他选择更好——这里没有比较的意思。 ★ had better用于谈论最近的将来，比should或ought to在时间上更为紧急。 Let's do the exercises! P90 Read about the situations first. Then complete the sentences with had better or had better not. (1) Today is Friday. Zhang Xin hasn't finished his poster yet. The deadline is next Monday. Zhang Xin's cousin: You _______________________________ this weekend. (2) Wang Yao has a high fever, and she looks very pale. Wang Yao's mother: You _______________________________ this morning. had better finish the poster had better not go to school / had better stay at home (3) Li Jie wants to have dinner at a restaurant this evening. The restaurant is always busy. Li Jie's friend: You _______________________________ before you go. (4) The sky is getting dark. There's going to be a thunderstorm. Su Mei wants to go out for a walk. Su Mei's dad: You _________________________________________. (5) Mr Chen was late for work again because of the heavy traffic. Mr Chen's boss: You _________________________________________. had better book a table had better not go out now had better leave home early tomorrow Let's review! should意为“应该”，后面跟动词原形，否定式为should not，其缩略形式为shouldn't，意为“不应该”。 had better 意为“做……是好的；最好还是……”,后面跟动词原形,否定式为had better not，其缩略形式为'd better，意为“最好别……”。 Su Mei is interested in taking part in the speech competition during English Week. Can you give her some suggestions? Try to use should, should not, had better, had better not in your suggestions. Post-learning You should start your speech with an interesting story. You ‌should‌ choose a topic you're familiar with. You ‌should‌ practise in front of a mirror or with a friend to build confidence. You ‌should not‌ memorize your speech word for word as it can sound robotic. You ‌had better‌ start preparing early to avoid last-minute stress. You ‌had better not‌ pause for too long while presenting. You ‌should‌ speak clearly and smile while presenting. 1. As Bill has a sore throat, he ______ drink a lot of hot water. A. should B. could C. might D. may 2. In daily life, we ______ cloth bags to help protect the environment. A. oughtn't to use B. oughtn't use to C. ought use to D. ought to use 一、单项选择。 3. — ______ the boys ______ jokes about Richard? — No, they shouldn't. They should help Richard. A. Should; make B. Must; make C. Shall; to make D. Shouldn't; to make 4. — You'd better ______ with your phone when you cross the road. It's dangerous. — Thank you for your advice. I won't. A. play B. not play C. play not D. to play 5. — I fought with my best friend Wendy this morning. What should I do? — You ______ say sorry to her first. A. would rather B. had to C. had better D. would 1. It's cold outside. You ___________(had better / had better not) close the windows. 2. Daniel is so ill that he should ___________(gone / go) and see the doctor as soon as possible. 3. — You'd better ___________(finish / be finishing) your homework before you hang out with your friends. — I see, Mum. 4. Tourists ___________(ought to not / oughtn't to) make noise in the museum. 5. Sara shouldn't ___________(read / to read) her sister's letter without her permission. 二、从括号中选择适当的词或词组完成句子。 had better go finish oughtn't to read 1. 作为年轻人，我们在公交车上应该把座位让给老人。 As young people, we ________ ________ our seats to the old people on the bus. 2. 安迪不应该经常向他父母要钱。 Andy ________ often ________ his parents for money. 三、根据所给汉语意思提示，完成下列句子。 should give shouldn't ask 3. 布朗先生最好现在就出发，否则他开会会迟到的。 Mr Brown ________ ________ ________ now, or he'll be late for the meeting. 4. 杰克妈妈告诉他不应该熬夜。 Jack's mother told him that he ________ ________ up late. 5. 你最好不要一直盯着屏幕，那对你的眼睛不好。 You ________ ________ ________ ________ ________ the screen all the time. It's bad for your eyes. had better start shouldn't stay had better not look at Write suggestions on English Week avtivities, using the modal verbs we have learnt in this unit. (at least 10) Finish the exercises in EW (English Weekly). Preview Speaking on P91. Thank you! 29 $