四年级下册Let'stalk教案(2)
T: There are many animals at the farm. They are farms too. 教师出示两张农场图片 This farm is for you, half A. And this farm is for you, half B. We'll have a competition this class. Let's see who can get more animals，ok? Come on, half A! Come on, half B!
设计意图：这节课的评价方式紧紧围绕着课文内容：自己拥有一个农场，并通过努力可以赢取动物为自己所有。形式新颖，并且能很好地发挥学生学习英语的主动性。小组比赛既能充分激发学生的积极性，又能引导学生学会与人合作。
Step 2 Presentation
1. 教师利用图片快速复习单词 cow, horse, sheep, lamb, goat, hen. 并在复习 hen 时，熟悉单词 fat。教师把图片贴在黑板上：
T: What's this? Ss: It's a cow...
T: What.s this? Ss: It.s a hen.
T: Wow, this hen is so fat. (事先把 hen 画的很胖) 教师板书 fat 并教学 fat。It's fat.
2. 利用图片，教学新词汇：donkey
T: Is it a horse? Ss: No. T: It's a donkey. 教师带领学生用升、降调朗读单词。
3. 利用图片，快速复习句型：What are they? They are... 并在复习 hens 中引出新授对话中的句子：They are fat.
T：Look, what are they? Ss：They are donkeys.
T: What are they? Ss: They are hens.
T: Yes. And they are fat. 板书 They are fat. 并教学此句。
教师分单数和复数两列板书所有动物单词，通过对比的方式让学生明白名词的单复数区别，并让学生感知名词复数的读音。
4. 引导学生学会回答：Yes, they are./No, they aren't.
教师事先把动物图片反贴在黑板上，学生看到图片背面。
T: Look, are they hens? Ss: No, they aren't. ( with T's help)
T: What are they? Ss: They are cows.
T: Are they cows? Ss: No, they aren't.
板书并教学句子：No, they aren't.
教师以同样的方式教学： Yes, they are.
5．利用图片，教师引导学生猜：Are they...? 师答: Yes, they are./No, they aren't.
设计意图：在旧知中引出和操练新知，学生一点都不觉得累，反而有更浓厚的兴趣。通过名词单、复数的对比和总结，让学生感知名词单、复数的不同表达方法，进一步强化新单词的读音。学生看到图片的背面并没有图案，这产生了一定的信息沟，进一步激发了学生学习的兴趣和积极性，解决了本课的重点。
Step 3 Let's chant
学生看着黑板上的板书及图片，吟诵如下歌谣：
Donkeys, donkeys, are they donkeys?
Yes, yes. Yes, they are.
Horses, horse, are they horses?
No, no. No, they aren't.
设计意图：让学生把新学的单词、难读的单词以及新学的句型用到歌谣中，不仅能达到正音、弱化难点的目的，还可以培养学生朗读的节奏感和韵律感，吸引学生的注意力，增添操练的趣味性。
Step 4 Practice
教师出示一串游戏纸的反面，学生猜正面是什么动物。(结合小组比赛) 在猜的活动中操练句型：Are they...? 并利用学生以前学过的单词，进行滚动复习。教师作适当提示。
T：They are fruits. They are red and round.
Ss: Are they apples? T: No, they aren't.
