人教版英语三年级下册-Unit-6-第五课时-名师教学教案.doc

好好学习 天天向上第五課时l 課时内容B. Lets learn; Lets chant l 課时分析 Lets Learn中John在问赛车场的工作人员,一共有多少辆车,在此过程中呈现数字单词1620,以及询问他人拥有的物品的数量的问句及相应答句。在上一課时中,學生已经學到了16的英语表达方式,本課时在此基础上,让學生继续學习下边的四个数字。这几个数字的规律性很明显,學生可以从1119九个数字与19九个数字的对比中更加清楚的感受到数字变化的规律。重点问答句在上一課时也已经在对话中學习过,在这个課时,可以提供更多的练习机会,让學生能够做到听说、认读这一重点句式。Lets chant部分将两个課时的重点问答句放在了一起,同时还加入了简单的加法及乘法的表达：10 and 8 makes 18. 4 times 5 makes 20. 需要让學生运用20以内的数字进行练习,以帮助其形成英语的数字思维能力。l 課时目标1. 能够听懂、会说、认读单词：sixteen, seventeen, eighteen, nineteen, twenty2. 能够听懂、会说、认读句式：How many . do you have? We have. 3. 能够使用英语进行简单的加法和乘法运算l 課时重难点1.重点：能够听懂、会说、认读单词sixteen, seventeen, eighteen, nineteen, twenty能够听懂、会说认读句式：How many . do you have? We have.2. 难点：能够正确使用英语进行简单的加法和乘法运算l 敎學准备1. 多媒体課件、录音机、磁带。2. 数字卡片l 敎學过程 Step 1 Warm up1.开始課程前,将學生分成四组,在黑板上为每组画一棵树。學生表现好时就为自己的组获得一个苹果。課程结束时,水果最多的组获胜。Teacher: Ill divide you into four groups. Each group has a tree. If you did well, I will draw an apple for you. At the end of the lesson, the group which gets more apples will be the winner. 2. 播放韵句：How many do you have? 将A部分Lets chant的内容改编为适合本課时的内容播放。Hello, my friend. Please tell me.How many apples do you have?One, two, three . I have three.One, two, three . I have three.Teacher: Look at the pictures. There are three apples. Lets chant about the apples. Listen first. Then say it together. 设计意图：以小组竞赛为本課时主评价方式,这样,可以在學习过程中随时统计每组拥有水果的数目,也就可以随时以此为契机进行重点句式的练习。韵句改编自部分學过的内容,學生很熟悉节奏,重点句式改为B部分的重点句式,调整不多,學生接受也会比较容易。 Step 2 Lead in1.出示四个苹果,再出示十个,询问學生苹果数量,引出数字及本課的重点句式。Teacher：How many apples do I have? Yes, I have four apples. Now, how many apples do I have? Lets count. One, two, three, . I have fourteen apples. Four and ten makes fourteen. （展示阿拉伯式数字算式及英语句子）Read it together, please. 设计意图：由韵句中的内容进入本环节的學习。四、十、十四这三个数字學生都已经很熟悉了。将苹果以两组的形式出现,再加入数學的加法算式,學生对于英语的加法也就很自然地理解了。这样,引入之后的十六到二十也就比较容易了。而且,以加十四的方法来呈现新词汇,學生也比较容易能找到数字之间变化的规律。 Step 3 Presentation1. 以上一环节的方式,展示更多的物品,如书、球、尺子、彩笔等,以5+10=15, 6+10=16, 7+10=17, 8+10=18, 9+10=10, 10+10=20这样的方法来展示本課的五个数字单词。Teacher：How many . do I have? How many . are there now? Five and ten makes _. （结果请學生说出）Read it, please. Six and ten makessixteen. Seven and ten makesseventeen. Eight and ten makeseighteen. Nine and ten makesnineteen. Ten and ten makestwenty. （随时记录學生的表现,为學生的小组加分）（每一个新的数字词汇出来之后,以男生读、女生读、小组读、接龙读等方式请學生读一读）（每个算式的句子,也以各种形式请學生读一读）设计意图：衔接上一环节的活动,以加法的方式呈现这些新的词汇,将十五至二十与五至十联系起来呈现,为學生寻找数字之间的规律服务。2.同时呈现一至十,十一到二十共二十个数字单词,分成两组,两两对应,请學生观察并找出数字之间的规律。Teacher：Look at these numbers. Can you find something? Can you show us? 设计意图：让學生自己通过观察、分析,总结出数字之间存在的变化规律,必要时可以允许他们使用汉语,加深他们的记忆。 Step 4 Practice1. 播放課文,跟读課文。Teacher：Listen to the tape and follow it please. 设计意图：通过跟读获取单词及句式的正确读音,并纠正自己的读音。2. 顺序数一数。每组派出三名代表,请他们从一数到二十,然后再从一开始数。数错的學生回座位,最后以剩下的人数为各组加分。Teacher：Lets count from one to twenty. I want three students from each group. If you win, you will get apples for your group. 3. 快速出示阿拉伯数字,请學生抢答出数字。Teacher: This time, Ill show some numbers. Say it in English as quickly as you can. I will give one apple for the first one. 设计意图：这两个活动一个保证學生能够记住数字前后的联系,可以顺序数到二十。一个保证學生可以针对单一的数字有直接的反应。在活动过程中,统计各组的苹果数目。4. 二十以内加法口算比赛。以小组为单位,一个接一个进行二十以内加法比赛。先由老师示范,再由學生分组对抗,相互出题。老师负责统计小组的得分。Teacher: What is five and three? What is two and eleven? What is five and eight?Teacher: Lets have a race. Group one asks Group two. If Group two is right, youll get an apple. If Group two is wrong, Group one will get one apple. Then Group two asks Group one. Group Three asks Group four. 设计意图：加法运算对于學生数字方法的英语思维来说,最具挑战性。學生需要对每个加数有直接的英语反应,还要迅速将其运算到一起,说出第三个数字。让學生之间互相挑战,容易激发學生的集体荣誉感和竞争意识,让他们更加积极地参与到练习中来。5. 二十以内的乘法口算比赛。比赛方法如上。Teacher: What is one times three? Its three. （出示乘法算式,让學生明白times在这里的含义）What is two times three? What is five times three? 请學生尝试回答,熟悉乘法的英语表达。Teacher: Lets have a race. Group one asks Group two. If Group two is right, youll get an apple. If Group two is wrong, Group one will get one apple. Then Group two asks Group one. Group Three asks Group four. 设计意图：经历过加法运算之后,學生再理解乘法就比较容易了。但由于學生只學到了数字二十,所以在學生出题时要提示把答案控制在二十以内。6. 播放韵句,學生先认真倾听,然后敎师与學生针对韵句内容时行交流,最后學生跟唱。Teacher: Everyone did a good job. Now its time for chant. Listen carefully. Teacher: What is 10 and 8? Can you count with me? Count from one to eighteen. What is 4 times 5? Teacher：Listen to the chant again and follow it. Teacher: Lets say the chant together. 设计意图：这个韵句包括了A、B两部分的重点问句,而且还有加法、乘法运算的内容,与上一环节中的加法、乘法竞赛相衔接。學生在學唱的过程中,进一步对数字有了更深入的理解和掌握。 Step 5 Summary1. 學生以自己喜欢的方式表演韵句,来总结本課时的重点知识。Teacher：Now please show the chant. You can show it by two or in groups. Lets find the best group. 设计意图：鼓励學生以自己喜欢的方式来展现韵句,以保护他们参与的欲望并激发他们持续的學习兴趣。2. 总结小组表现,鼓励最佳小组。Teacher: Now lets count the apples of each group. How many apples do you have? Which group is the winner? Congratulations. Everybody, please be better next time. 设计意图：对學生的评价最主要的意义就是激励學生,使學生保持持久的學习兴趣。以与本課重点知识相联系的方式进行评价,还能同时复习巩固本課的重点知识,可谓一举两得。l 課堂作业一、看一看,写一写二、根据你自己的实际情况来回答问题。1.How many pens do you have? _2. How many books do you have?_3. How many bags do you have?_4. How many cars do you have?_三、读一读,判断正（T）误（）。A: Good morning, Lily.B: Good morning, Tom.A: Whats this?B: Its my new bag.A: Its beautiful!B: Thank you.A: Whats in the bag?B: Some books and a pencil box.A: How many books do you have?B: I have twelve books.A: So many books. How many pencils do you have?B: I have four.( ) 1. Tom has a new bag.( ) 2. Toms bag is beautiful. ( ) 3. Tom has four books in the bag.( ) 4. Lily has twelve books in the bag.( ) 5. Tom has four pencils. 答案：一、seventeen, twenty, nineteen, sixteen, eighteen二、學生根据自己的好恶自由回答。三、1.T 2. T 3. F 4. F 5. Tl 板书设计Unit Six How many?B. Lets learn sixteen seventeen eighteen nineteen twentyHow many . do you have?I have . 5