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Unit 2 Section A Grammar Focus 学案
学习目标 通过本节课学习，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。（学习理解） 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。（应用实践） 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。（迁移创新）
学习重难点 重点：学生能够掌握并运用祈使句和情态动词表达规则，关注表示命令时的委婉的语气。 难点：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。
课堂探究
情景导入 1.Look and say Look at the signs and talk about them in different ways. 2.Watch and say what kind of interesting sentences did you notice in the video
学习理解 1.Look and think. Think: Which sentences are imperative sentences Which sentences contain modal verbs What are the modal verbs 2.Task 1. Imperative Sentences Think: (1) 什么是祈使句？ (2)祈使句的特点？ (3)祈使句的类型？ 式Turn back! Go to bed now! Be quiet, please! Be careful! Let’s go! Let’s have a rest! 式Don’t be late! Don’t smoke here! Don’t let him leave! No photos! No smoking!
(4)Summary 祈使句一般用来表示 、 、 、 、 等。在祈使句中，通常省略主语 ，其肯定形式以 开头，否定形式是在 前加don’t。祈使句句尾用句号或 ，读时用降调。为表示礼貌，可以在 或 加上please。句末用please时，前面通常加逗号。 3.Task 2. Modal Verbs (1)出现了哪些情态动词？ (2)情态动词的作用 (3)情态动词的特点 (4) Modal Verb用法canmust区别：have to
4.Exercise (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
应用实践 1.Complete the sentences using can, have to / must, or can’t / mustn’t.(p13 3a) 2.Look at the first sign and read the rules. Then write the rules for the other signs.(p13 3b)
迁移创新 1.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. 2.Group Work(选做) Preparations： 1. Several cards with different scenarios written on them (such as library, school dining hall, park, cinema, hospital etc.). 2.Drawing tools, such as drawing paper, colored pens, etc. 3.A blackboard or a large screen for display. 4.Divide the students into several groups, with 3 to 5 people in each group. 5.Each group sends a representative to draw a scene card to determine the scene where they need to make rules. Rules： 1. Group members use imperative sentences and modal verbs (such as must, mustn't, can, can't, etc.) to make three rules. For example, if “park” is drawn, the rules could be: You mustn't pick the flowers. 2. Each group draws corresponding signs according to the rules made. For example, for the rule "You mustn't smoke", you can draw like this: 3. Each group sends a representative to display the drawn signs on the large screen and explain to the whole class the meanings of these signs and the corresponding rules.
课堂练习 一、根据句意及提示写出所缺单词或短语 1. She is (absence) from today’s conference. 2. Don’t stay up too late! Because you will leave London early next morning. 3. It’s an important meeting. (not be) late. 4. Let’s (say) something about it. 二．单项选择。 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
参考答案
情景导入
学习理解 1.Look and think. 略 2.Task 1. Imperative Sentences Think: (1) 什么是祈使句？ 祈使句一般用来表示命令、请求、劝说、号召、警告、禁止等。 (2)祈使句的特点？ 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。 (3)祈使句的类型？ (4)Summary 3.Task 2. Modal Verbs (1)出现了哪些情态动词？ can; must; have to (2)情态动词的作用 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。 情态动词的特点 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。 (4) 4.Exercise BABA
应用实践 1.Complete the sentences using can, have to / must, or can’t / mustn’t.(p13 3a) 2.Look at the first sign and read the rules. Then write the rules for the other signs.(p13 3b)
迁移创新 略
课堂练习 一.完成句子 absent；for；Don’t be；say 二．单项选择 DACC

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