四年级英语下册 Lesson 9(1)教案 陕旅版

（陕旅版）四年级英语下册教案Lesson 9Dont worry. 前面我们学过祈使句的肯定形式，本课我们学习祈使句的否定式和另一个情态动词can 的肯定和否定用法。要求掌握worry, cry, push, shout, read, policeman等词汇。同时学习怎样给他人提供帮助，教育学生要关爱他人，乐于助人。教学目的及重难点分析：1 会说会用这些句子：Dont worry.Dont cry. I cant find my mother.Let me help you. Lets go to the policeman for help.2.会说会用会写这些单词: worry, cry, push, shout, read, policeman，over there, find.3 学习祈使句的否定式。4情态动词can 的肯定和否定用法。课前准备：1 教师准备常见的各种职业的头饰。如：老师，医生，厨师，警察等。2 录音机和相关部分的录音带。3 worry, cry, push, shout, read, policeman，的单词卡片。4 老师以49页的图片为参考,制作一个flash课件。5 教师准备玩具枪,老夫人的头饰 。 。6 老师准备已学过的动词的卡片。教学过程:1. 热身（Warming up）1）老师播放事先准备的flash课件引出话题，课件内容可这样设计对话：Girl: What are you doing?Boy: I am crying.G: Why are you crying?B: I cant find my mother.G: Dont worry. Let me help you. Dont cry. Lets go to that policeman for help.Boy: Thank you.2）我来扮演你来猜老师分别扮演医生，厨师，老师等职业问学生：What am I?2.新课展示（New Presentation）1）老师通过教具和活动讲解本课重点句型及词汇;T: 老师做一个警察的动作，问： What am I? 并引导学生答：A policeman. A policeman. (示词卡) Im a policeman.边做警察端起枪的动作边说: Dont move. Hands up!看到学生紧张的表情，老师放下枪，扮演老师的角色和颜悦色说：Dont worry. Imonly a teacher.2) T: Dont worry, dont worry. Im not a policeman, Im a teacher.Oh, its time for class. Now, lets begin. Please read the book.3）老师将一个学生的书藏到讲台前并安排他突然大喊Oh, my god ,Wheres my book?T:嘘，Dont shout. They are reading.老师走过去问:Why are you crying?并引导学生说：I cant find my book. Where is my book?老师强调：He cant find his book. Where is his book?T: 老师安慰他说：Oh, dont worry. Dont cry. Lets me help you.4）老师走过去拉起他说：Come on and follow me. Lets go to your teacher for help.另一个学生推了推他，示意他跟着老师走，这个学生用手打了打说:Dont push me.老师强调说：Dont push him.5)学生刚跟老师走了两步，忽然停下来说：Oh, my god. Thats my book.老师转过身问： Where?学生用手指，老师引导他说：Over there.老师看了看说：Yeah, its over there. Now you find your book. Go to your seat and read the text.3小结：1)当我们发出指令“不要做某事”时，我们要用祈使句的否定式.如：Dont read in bed.不要躺在床上看书.Dont shout,不要大声喊叫等等。2)cant = can not后跟动词原形，表示不能，不会，如：I cant swim. She cant speak English.4 巩固活动：1）听指令做游戏；Stand up! Sit down. Wash your face. Dont wash your face. Read the text. Dont read now. Go to the policeman. Dont move. Jump rope. Dont jump now. Please shout at each other. Dont shout .Push the student in front of you. Dont push now. Mend your desk, please.5.听录音学习对话：A: Lets listen to a dialogue, then answer the questions.（播放对话部分录音，抢答。抢答正确者为所在的组赢得一分，看哪组是今天的获胜小分队。）T: What is the boy doing?Ss: He is crying.T: Why is he crying?Ss: He cant find his mother.T: Who helps the boy?Ss: The girl.T: Who will they go to for help?Ss: The policeman.6. 播放Listen, look and match部分录音.听并连线，看看哪个句子和哪幅图意匹配。 7. 做Lets Practice(I). Look and choose according to the pictures.这部分可以设计成一个游戏，让大家看周围谁做的不对，让他停下来手中正在做的事情,并教育学生养成良好的生活习惯。老师将写有已学过的动词 Wash your face. Read the text in bed. Go to the policeman. Jump rope. Please shout at each other. Push the student in front of you. Mend your desk, please. Be late for class. Play basketball. Move the chair away等单词卡片交给几个学生，让他们分别做这些动作，让其他的学生判断他们做的对不对，好不好，让他们认为不对不好的让他们停下来。或者设计成老师分别出示这四幅图进行如下的问题，引导学生选词填空。并教育学生养成良好的生活习惯。T:（出示 图1）What is the boy doing?Ss: He is reading in bed.T: What does his mother say?Ss: She says:” Dont read in bed.”图2: Dont push图3:Dont shout.图4:Dont be late. “8. 做Lets Practice(II).角色扮演/情景再现。老师让几个学生分别装作在找东西，（有人在找丢失的书，有人在找丢失的笔，还有个戴夫人头饰的人在找丢失的儿子，）让其他的学生上