英语人教版四年级下册Unit 4A lets learn.doc

PEP4 Unit4 At a farm A learn一、 教学目标1. 能听说、认读单词tomatoes, potatoes, green beans, carrots.2. 能区分蔬菜单词的单复数形式。3. 能用I like表达自己的喜好。4. 理解健康饮食的重要性，明白挑食不利于健康的道理。二、 教学重难点1. 重点：听说、认读单词tomatoes, potatoes, green beans, carrots.2. 难点：正确区分蔬菜单词的单复数形式；明白挑食不利于健康的道理。三、 教学准备1. 准备单词卡片2. 准备教学课件3. 准备头饰四、 教学步骤Warm-up1. Song: vegetable song2. Chant: I like potatoes3. Greetings4. Guess: Whats this? 复习食物单词，并引出vegetablesPresentation1. tomatoesa. T: Vegetables are healthy. Guess, what is it? Its a kind of the vegetables. Its healthy. Its sour. Its round. Its juicy. Whats this?S: Tomato.教学tomato 板书tomatob. I think _is tomato.c. Guess: How many tomatoes? 教学复数形式，并板书tomatoes. 此环节呈现红色和黄色的tomatod. chant: Tomatoes are red, tomatoes are yellow. I like tomatoes.小组合作2. potatoesa. I like noodles with tomatoes.由此引出I like noodles with potatoes.教学并板书potatoesb. chant: One potato, two potato, three potatoes, four. T：Lets count the potatoes. One potato, two potatoes, three potatoes, four.呈现句子，学生跟读加上表演。 Five potatoes, six potatoes, seven potatoes, more.学生跟读加上表演。播放chant，学生学生听音学习，小组合作。3. green beansa. T: The potatoes are very popular. Look, the sir would like some potatoes for lunch.播放录音。T: What would the lady like? What would the man like? Listen and choose.学生听录音，选出两个人物想吃的东西，引出green beans.T: The man would like some green beans.b. 呈现四种蔬菜T: Which one is right?学生选出正确的图片，跟读，板书green beans.Chant: green beans, green beans, green, green. c. 看图说话The green beans are cute/ green/ long d. T: Do you like green beans?S: Yes, I do. / No, I dont.T：Do you like tomatoes/ potatoes?由师生操练过渡到生生操练。4. carrota. 由上一环节引出rabbitT: Lets ask the rabbit.S: Rabbit, rabbit, do you like?T: The rabbit says No, I dont. What does he like? Look, he likes carrots.教学carrots并板书。b. Pull the carrotT: Look, there is a big carrot. Pull the carrot. Ai-hey-yo. Its too big. Come on, help me.招呼学生帮忙。S: Ai-hey-yo. Pull the rabbit.事先和一学生约好，让其扮演carrot,约四五个学生来帮忙，该学生就从座位上起来，当做拔萝卜成功。S: Yeah! A big carrot. c. T: Yeah! A big carrot. I like carrots. What about you? S: I like carrots.T: I dont like carrots very much, but carrot I will try.S: Carrots I will try. Practice1. 跟读录音T: You are so good. Now follow the computer.2. 教师带读单词，调查学生对这几种蔬菜的喜爱程度S: I like_.T: So, the winner is_. Its popular in your class.3. Story timea. T: There is a boy. His name is Winnie. What does he like? Lets enjoy the story. 播放故事T: Winnie is a boy. He doesnt like vegetables.W: I dont like _.T: He likes hamburgers only. He becomes a hamburger.W: No. Im a hamburger.T: The dogs run after him, the sayI like hamburger Winnie saysW: Im not a hamburger. Help!T: What can he do?S: Eat some vegetables.c. T: Lets act the story. I can act Winnie in scene1. 教师示范。 T: Who can act Winnie in scene2 ? 学生示范。d. 小组合作表演故事4. T： You are so good. There is a question for you. Q: Can Winnie eat vegetables only? S: No, he cant. T: If he