Unit 3 What makes a great team？ Grammar 课件2025-2026学年外研版八年级英语下册

该初中英语课件聚焦情态动词should、have to、can、must等的用法，通过Tom的真实邮件案例导入，呈现团队领导中的问题与建议，结合例句归纳情态动词规律，分点讲解用法并设计练习与对话，构建从情境感知到规则总结再到应用实践的学习支架。 其亮点在于情境化与结构化结合，以邮件案例培养语言理解与表达能力，用对比表、句型转换引导分析比较提升思维品质，练习从填空到评论框应用层层递进培养学习能力。学生能提升情态动词应用能力，教师可获得系统教学资源提高效率。

Unit 3 What makes a great team? 外研版八年级英语下册 Unit 3 What makes a great team？ Grammar 能够归纳情态动词should, have to, can, must, had better的用法 能够正确使用情态动词should, have to完成相关练习 能够用所学的核心词汇和情态动词完成一小段对话，话题为qualities of a good leader Now find more sentences with these structures in the reading passage. Presentation 一般无人称和数的变化 情态动词后接动词原型 情态动词的否定式:在情态动词后加not 情态动词的使用规律 Presentation You shouldn't eat too much junk food if you want to stay healthy. 如果你想保持健康，就不应该吃太多垃圾食品。 should 含义 表示建议或劝告，意为“应当” 可用于肯定句、否定句和疑问句 You should listen to the doctor's advice. 你应当听从医生的建议。 否定形式 should not (shouldn’t), 表示“不应”的意思 Finish the summary of the two emails. Tony was the (1) ___________ of the drama Snow White. It was his first time as a(n) (2) _____________, and he had a big problem. Two girls, Lisa and Mary, both wanted to be the (3) _____________. Tony didn’t know how to (4) ______________. He was (5) _____________ that he might make the wrong choice or hurt Lisa’s (6) _____________. His (7) ____________ made Lisa very angry, and she left. Tony felt awful, so he asked Ms White for (8) _____________. director leader princess decide worried/afraid feelings silence advice Now find more sentences with these structures in the reading passage. You mustn't talk loudly in the library. 图书馆内禁止大声喧哗。 must 含义 must意为“必须”可用于肯定句、否定句和疑问句。 She must learn to manage her time better. 她必须学会更好地管理自己的时间。 否定形式 must not(mustn’t), 意为“不应该”或“禁止” First, you should discuss the matter with Lisa. You’re the director, but you don’t have to deal with all the problems yourself. Read the sentences from the reading passage. Find the modal verbs and summarise the grammar rules. 情态动词本身具有一定的含义，表示说话人对有关行为或事物的态度和看法。比如，例句中should和have to表示___________。情态动词一般无人称和数的变化，后面接动词___________。 建议 原形 You can't put the milk in first. 你不能先倒入牛奶。( 没有禁止的含义) Can I have a look at your photos? 我可以看一下你的照片吗? can 含义 意为“请求允许”和“给予许可” 可用于肯定句、否定句和疑问句。 When you get to know each other better or when they ask you to, you can just use their first names.当你们更加熟悉或他们请你(这样做)时，你就可以只称呼他们的名字了。 否定形式 cannot(can’t)表示“不能，不可以”，语气弱于must not(mustn't)。 具体用法 （2）否定形式：don’t/doesn’t/didn’t have to 表示“不必”，相当于 needn’t，区别于 mustn’t（禁止做）。 她今天早上不必早起。 She didn’t have to get up early this morning. 你不必今天完成这项工作。 You don’t have to finish the work today. = You needn’t finish the work today. have to 否定式 核心含义：不必 don't/doesn't have to = needn't，表“没有必要做某事” 1.You don't have to bring your textbook; I will share mine. 2.He doesn't have to finish the work today; it's due tomorrow. 3.We don't have to get up early on weekends. 注意：与“禁止”无关，仅表无客观要求 Read the sentences and write your advice with should(n’t) or (don’t) have to. 1 Simon is late for the meeting today. All the team members are waiting for him. _________________________________________________ _________________________________________________ 2 Captain Oliver never passes the ball to others in the match. _________________________________________________ _________________________________________________ 3 Donna doesn’t like others in the team to question her decisions. _________________________________________________ _________________________________________________ _________________________________________________ Simon shouldn’t be late for the meeting today. He should be on time. Captain Oliver should pass the ball to others in the match. He doesn’t have to keep the ball all the time. Donna should be open to others’ questions in the team. She doesn’t have to agree with everything, but she should listen to other people’s ideas. 句型转换1——陈述句变建议句 规则：It's a good idea to do sth. → You should do sth. 示例：It's a good idea to practice English every day. → You should practice English every day. 关键：保留动词原形，替换句式即可 句型转换2——客观必要句改写 规则：It's necessary to do sth. → 主语 + have to/has to do sth. 示例：It's necessary for her to get up early. → She has to get up early. 关键：根据主语变have to/has to should 与 have to 核心对比表（基础） 情态动词 核心侧重 人称变化 否定含义 should 主观建议、劝告、责任 无 shouldn't 不应该（劝诫） have to 客观规则、外界要求 有（has to/had to） don't have to 不必（无要求） Complete the comment box using the modal verbs you have learnt. should shouldn’t / doesn’t have to don’t have to shouldn’t / doesn’t have to should should 与 have to 语境辨析 例句对比 主观建议（should） You should exercise every day to keep healthy. You should read more books to improve your English. 客观要求（have to） You have to exercise for an hour at school every day. You have to read two books every month for your class. $