英语人教版四年级下册第四单元A部分.docx

人教版小学四年级英语下册Unit4 At the farm Part A Lets talk广西来宾武宣禄新镇中心校： 陆柳燕 2017年6月教学目标：1. 在情境中理解单词：tomato, tomatoes, carrot,carrots.的意思。2. 在情境中运用句型：Whats this? What are these?来询问蔬菜单复数形式，能用Its a/an . 和 They are 句型回答。3. 会用句型Are these ?询问物品，并做肯定回答：Yes, they are. 及否定回答：No, they arent.4. 读熟课文对话，分角色表演课文对话。教学重点：1、运用两种句型提问并回答 A: What are these ? B: They are A:Are these /they ? B: 肯定回答：Yes , they are. 否定回答：No, they arent.2、会用句型：Wow, theyre so big . Theyre good.来赞扬蔬菜的形状及味道的好。教学难点：名词复数的形式及读音。教学准备：多媒体课件教学步骤：Step 1 :Warming up. Play a game .Simon says : Stand up, Sit down , Touch your nose /head/face/eye.Stamp 2: Lend- in 1. T:boys and girls ,You are very great. Clap your hands for yourselves. Now , look at these. What can you see in the picture?Ss: We can see some fruits.2. T: Yes,they are colours. (red/green/yellow.)3. 课件出示复习颜色单词：red/green/yellow/orange/black/blue/white.Step 3 Presentation1.教师边出示课件边问T: Whats this ?Ss: Its a watermelon .(a pear / an apple/ an orange)T: What are these?(板书)（帮助学生回答）：They are watermelons.( pears, apples, oranges .)Ss: They are + 名词复数（板书）T：What colour are the apples ? What about watermelons/ pears/ oranges?Ss: They are 2. 今天，请同学们跟随老师去农场玩一玩，看看农场里农民都种有什么，出示课题，At the farm. T: Look at these, What are these? Ss: They are some vegetables . Yes, tomatoes are also a vegetable.利用单词卡片 Teach : tomato/tomatoes.3. 通过询问小白兔喜欢什么，引出胡萝卜。Teach: carrot/carrots.4.利用课件快速操练句型：Whats this ?/ What are these? It s a (an) /Theyre （师生之间-小组之间-生生之间互问互答）5.师小结this 和these用法区别。6.课件引出句型Are these ? 并帮助回答：Yes, they are./No,they arent.(板书)Step4 Practise1、 猜一猜游戏。（游戏规则：老师描述物品种类、外型特征、颜色，让学生用Are these ?猜物品名称。）2、 摸一摸、猜一猜游戏。（师准备一个口袋，里面装几种蔬菜或水果，让一个学生上前摸，其他学生猜，对的用Yes,they are.错的用No, they arent.然后出示给大家看，并说Yes, they are ）Step5 Learn the text1.看和回答。1) Who are they in the picture?2) What are they talking about?3) How many vegetables can you see?4) What colour are the tomatoes?5) What colour are the carrots? 2.播放动画录音，学生带问题边听边找答案。3.再播放一次，学生跟读（利用缓慢播放形式）4.角色扮演，让两组学生上台表演课文对话。5.根据所给提示创编对话。（先在小组里，再抽查个别）Step 5 Development and class practise1. T: Vegetables and fruits are healthy food. They are green food. We should eat more.2.Choosev 1)Are these carrots? （ ） A:它们很好吃。v 2)Look at these ! （ ） B:它们如此大。v 3)They are so big. （ ） C: 但是它们是黄色的 v 4)What are these ? （ ） D: 这些是胡萝卜吗？v 5)Theyre tomatoes. （ ） E:请看这些。v 6)Try some. （ ） F:这些是什么？v 7)They are good. （ ） G: 它们是西红柿。8)But they are yellow. （ ） H: 试吃一些 3. Number1、What are these?2、Look at these. Are these carrots?3、Theyre tomatoes.4、Wow!Theyre so big!5、Try some!Theyre good.6、Yes,they are.7、Thanks,yum.8、But,theyre yellow.（ ）（ ）（ ）（ ）（ ）（ ）（ ）（ ） Step6 Homework1. 假如你是一个农场主，试着向来参观你的农场的游客介绍农场里都种有什么蔬菜。2. 书面作业。给问句选择正确答语。（ ）1）What are these? A:Yes they are. （ ）2）Is this a tomatoes? B:They are potatoes?（ ）3）Are these carrots? C:Yes ,it is.（ ）4）How many tomatoes do you have? D:Three. 板书设计 Unit 4 At the farm Part A Lets talk Carrot,carrots, tomato,tomatoe