Unit 4 Don't eat in class-祈使句的用法表格式教案

教师姓名 单位名称 填写时间
学科 英语 年级/册 七年级（下） 教材版本 人教版
课题名称 Unit4 Don’t eat in class.
难点名称 祈使句的用法
难点分析 从知识角度分析为什么难 祈使句句型结构较难，尤其是肯定祈使句首出现人名时， 同学们会习惯性使用动词的第三人称单数形式；否定祈使句的句型结构较多，Don't + 动词原形， No+doing/ n. ,以及let型的否定句。同学们容易混淆。
从学生角度分析为什么难 肯定祈使句首出现人名时， 同学们会习惯性使用动词的第三人称单数形式，否定祈使句句型种类多，Don't + 动词原形， No+doing/ n. 以及let型的否定句，在做练习时，同学们容易出错。
难点教学方法 通过观察祈使句的例句总结其句型结构通过相关祈使句的练习进行知识点巩固，学以致用。
教学环节 教学过程
导入 T: Hello, boys and girls. I am your English teacher, Lily. Yesterday my friend Savara Shinnosuke(蜡笔小新) came to ask for my help. He’s learning English. But he meets one problem that he doesn’t know how to use the imperative sentences. This class, please join me and try to give him a hand, OK T: In this class, we’re going to talk about Imperative Sentences from two aspects. One is the meaning of Imperative Sentences, and the other is the structure of Imperative Sentences.
知识讲解（难点突破） The meaning of Imperative Sentences (祈使句的含义) 祈使句是表示请求、命令、建议、劝告、警告、禁止等句子，通常说话的对象是第二人称you，you常被省略。句末常用感叹号。Turn off the TV, please. （请关上电视。——请求） Go and wash your hands. （去洗你的手。——命令）Let’s get down to work. （咱们开始工作吧！——建议）Have a nice day! （过个愉快的一天——祝愿） No parking! (禁止停车 ——禁止) The structure of Imperative Sentences肯定祈使句：动词原形在开头，祈使句型不发愁1）. 实义动词原形＋ 其他 （Do 型）2）. Be动词 ＋ 形容词/名词 （Be型）3）. Let ＋ 宾语 ＋ 动词原形 ＋ 其他 （Let型）Task1 Choose which one is the imperative sentence.(选择哪些是肯定祈使句)否定祈使句：变否定，你别急，加上don’t真容易。否定祈使有例外，Let句式真奇怪。变否定，还有招儿，No后doing表警告. Don't + 动词原形 Don't run. Don't be sad. 2). Don't+let+宾语+动原+其他 = Let+宾语+not+动原+其他 Don't let him do this.= Let him not do this.. No+ doing / n. No smoking. No food or drinks.Task2 What do these signs mean？Try to help Savara Shinnosuke know what the signs mean in the library and in the park.祈使句的回答 1). 肯定祈使句的回答：OK/Thanks/Yes,I will eg：---Please close the door. ---OK, I will. 2). 否定祈使句的回答:Sorry/Sure,I will not./won't. eg. ---No smoking. ---Sorry, I won't.Task3 Choose the right answers for the imperative sentences.
课堂练习（难点巩固） Task4 Beat the monster.1. Jim, _____ me a hand. A. gives B. is giving C. will give D. give2. ____ careful, Jenny! There is a tree in front of you. A. Am B. / C. Be D. Was3. Let's ____ our time. A. not waste B. no wasting C. not to waste D. no waste4. _____ let anyone open the door. A. Don't B. Will C. Not D. No5. — Don’t be late again. — Sorry, ______. A. I may B. I must C. I will D. I won’t
小结 祈使句用法口诀祈使句无主语， 主语you常省去。动词原形谓语当，句首Don't变否定。朗读应当用降调，句末常标感叹号。全班朗读。T: Practice makes perfect.