Unit 2 No Rules,No Order Lesson 3 Grammar Focus (3a-3d)（教学设计）2025-2026学年人教版英语七年级下册

该初中英语教案聚焦祈使句结构用法及情态动词can、must、have to表规则的核心知识点，通过播放含祈使句的视频片段（优翼配套课件）导入，引导学生观察句子长短、主语及表达功能，衔接七上can表能力旧知，搭建学习支架。 资料亮点在于以问题链（如比较祈使句与情态句语气差异）引导探究，培养思维品质，3d小组制作标志活动提升语言表达与合作学习能力，助力学生在真实情境中运用语法，为教师提供可操作的活动设计与分层练习。

第三课时Grammar Focus(3a－3d) 1、 Teaching Objectives In this class，students will： l. grasp the structure and usage of imperative sentences. 2. use modal verbs can ,must ,have to to talk about rules. 3. understand the signs of rules and explain what they mean. 2、 Teaching Advice Lead-in Watch and Say 1. Play a video clip in which the characters say imperatives in lines. Remind students to pay attention to the imperative lines while watching.(详见优翼配套教学课件) 2. Present the sentences and have students find the similarities among them. The following questions can be used as prompts. · Are these sentences long or short? · Do these sentences have a subject? · What do they express? 3.Explain imperatives to students. Explore the Grammar 3a 1. Have students read the sentences in the chart and answer the following questions. · Do the verbs in bold need to change forms? Why? · Which sentences are imperatives?Which use modal verbs? · For imperative sentences,what's special about their structure? · How do the meanings differ between an imperative (e.g. Don't run!) and a modal verb sentence (e.g.You mustn't litter.)?Which sounds“stricter”? · How do the meanings differ between can't and mustn't? Which sounds“stricter”? 2. Invite some students to share their answers and give feedback. Guide students to summarize how to form imperatives and how to use the modal verbs. 3. Present the usage of the modal verbs and imperatives for students. Grammar Rules ◆ 情态动词can的用法: 1.表示能力(七上Unit5已经学习)。e.g. I can run fast,but I can't swim. 2.表示许可(本单元重点)。 e.g. We can play basketball at weekends. Students can't run in the hallways. Can we bring our phones to class?： · 情态动词must的用法: 1.表示“必须”,否定形式mustn't表示“禁止”。 e.g. Don't arrive late for class. We must be on time. Students mustn't use their phones at school. 2.以 must 开头的一般疑问句,肯定回答用must,否定回答用needn't 或者don't have to, 表示“不必要”。 e.g.一Must I clean the classroom now? 一Yes,you must./No,you needn't/don't have to. · 情态动词have to的用法: 1.表示“不得不;必须”,在表示“必须”时,与must意义接近,有时可互换,但是have to有人称和数的变化。 e.g. We have to/must follow the rules. 2.must 表示说话人的主观看法,语气较为强烈,have to则强调客观需要。 e. g. 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. · 祈使句的种类及构成: 1.祈使句一般用来表示请求、命令、劝说、号召、警告等。祈使句的主语一般是第二人称you,但往往省略。祈使句的肯定式以动词原形开头,否定式在动词原形前加don't。 2.肯定的祈使句:动词原形+其他. e.g. Walk in the hallways./Stand up!/Be polite!/Keep quiet! 否定的祈使句:Don't十动词原形+其他. e. g. Don't run in the hallways. Let 型祈使句:Let十第一/三人称+动词原形+其他. e.g. Let me tell you the way to my house./Let's see the lions./Let him go. No型祈使句:No+名词/动名词. e. g. No photos./No parking. Grammar Exercises 3b 1. Ask students to complete the sentences using the correct modal verbs. 2. Have students check answers in pairs. And invite some pairs to share their answers by reading the completed sentences. 3. Explain the difficult parts for students. 3c 1. Let students read the instructions of 3c to understand the meaning. 2. Guide students to look at the first sign and read the rules. Then identify the types of the sentences. The teacher can also ask students to infer where the sign can be seen. 3. Ask students to write rules for the other signs and invite some volunteers to share their answers like this: T:Where can we see the fourth sign? S:By the river. T:What does it mean? S:Don't swim./You mustn't swim here./ No swimming. 3d 1. Have students read the instructions to make sure they get the meaning. The teacher can take the library as an example and list the common rules in the library using the sentence structures above. 2. Ask students to work in groups to choose a place to list the related rules using the expressions. 3. Have students make the corresponding signs according to the rules. 4. Have each group present the signs they make and explain the meanings. 一、用can, have to/ must, can’t或mustn’t填空。（5 分） 1. I like doing morning exercises. It ________ help me keep healthy. 2. You ________ play soccer on the road! It’s too dangerous. 3.—________ I clean the room now? —No, you needn’t. You can do it this evening. 4. It’s raining outside. I ________ take an umbrella to school. 5. Helen ________ go shopping with me because her mother needs her to help with housework. 二、选词并用其适当形式填空。（5 分） 6. No one knows why he is ______ from the meeting. 7. When we are in a car, we must wear our seat ________. 8. My father has a big farm, and he ________ lots of animals every day. 9.［重庆第二外国语学校期中］Don’t make noise. We must talk _________in the library. 10. Jim usually ________ his home at 7:30 and gets to school at 7:50. 三、根据汉语意思完成句子。 （11 分） 11.插队是不礼貌的。 It’s not polite _________ ________ _________ ________. 12.我现在很忙。你不需要等我。 I’m busy now. You don’t need to ________ _______ me. 点拨：由句意可知，空格处缺少动词短语“等待”，空格前为不定式符号，故用动词原形，填wait for。 wait其他常见用法：can't wait to do sth.迫不及待要做某事。 13.［重庆北碚区月考改编］Luke 今天病得很严重， 因此他没来上学。 Luke is badly ill today so he _____ ______ _____school. 14.该上课了，不要在教室里制造噪音了。 It’s time for class. Don’t _________ ________ in the classroom. Summary Ask students to summarize what they have learned in this lesson. Homework Finish the related exercises in the books produced by Youyi. Blackboard Design Write some important grammar rules and sample sentences on the blackboard. Teaching Reflection This lesson effectively introduced rules and signs using modals and imperatives. Students were engaged in identifying structures and meanings through clear examples. The group activity successfully promoted collaborative learning and creativity as students designed their own signs. However, the grammar explanation may have been too lengthy. Next time,I will encourage more student-centred discovery and shorten the lecture part. Some learners confused “mustn't”and “don't have to”,so I need to provide clearer contrast and practice. 学科网（北京）股份有限公司 $