英语人教版四年级下册At a farm

教学准备1. 教学目标知识目标：（1）能够听、说、认读单词：tomato, cucumber, potato, onion, carrot，同时能够了解juicy,tasty,yummy,tender,smelly这六个单词的含义。

（2）能够用所学的单词来描述蔬菜的特点、形状、口味和气味等。

如. The potatoes are big. They are fresh. ( 3 )能够在实际情景中运用所学的语言。

（4）能够理解和学说Let’s chant 的内容。

能力目标：（1）培养学生与人合作的能力。

（2）培养学生在实际生活中合理得体地运用英语的能力。

情感目标：通过有关蔬菜知识的学习，培养学生合理饮食的良好习惯。

德育目标：教育学生热爱劳动，不劳无获(No pains, no gains)。

2. 教学重点/难点教学重点：掌握单词：tomato, cucumber, potato, onion, carrot的单复数形式和句型：Look at the cucumbers. They are fresh. Yes. And the potatoes are big.教学难点：学生能够在所创设的情景中合理得体地应用所学的语言。

3. 教学用具4. 标签教学过程Step1 Warming upPlay a game:“Me,too.”T: I’ll tell you something about myself. If you are the same as me, please stand up and say“ Me, too.”Eg. I like red. I like noodles.I like strawberries.I like cats. I am from China.[设计意图] 通过一个简单的游戏，拉近师生之间的距离，从上课一开始就创设一种英语学习的氛围，同时所使用的句型又为接下来的课堂教学做好了铺垫。

Step2 Presentation1.创设情境，导入新课T: Today we are going to an interesting place. a) It has many trees and grass. b) It has many animals. c) It has manyvegetables. d) There are potatoes, tomatoes, cucumbers, onions and carrots. Can you guess? Where are we going? Ss: Farm. T: Yes, we are going to the farm. 出示呈现一个农场——初步感知认识五种蔬菜。

[设计意图]本课的导入自然有趣，创设一个真实农场的情景，把五种学习的蔬菜整体呈现给学生，使学生初步感知认识本节课学习的内容。

通过设疑提问的形式激发学生的学习兴趣，使他们的注意力高度集中，有效参与到课堂学习活动中。

2.Teach“carror(s)—yummy”T: Look！Here come one cat. Guess! What’s this animal?出示并让学生猜谜语:Hi! I’m your friend. I’m white. I have long ears. I can jump. Guess! Who am I ? Ss: It’s a rabbit. T: Right. Cat like eating fish. What about the rabbit? Ss can answer it bothin Chinese and English. Then T will show the word card and thepicture and drill it.( T 带读，抽个别小组读) Then let’s count the carrots in the picture. Eg. One carrot, two carrots… many carrots)出示word card“carrots”并张贴，教师带读，抽查2小组读。

I like carrots. They are yummy.（出示单词卡，背面注上中文，抽读个别学生，教师带读新单词）趣味拍手操练chant: I like carrots. I likecarrots.Yummy,yummy,yummy.(师生示范chant，生生pair work)T: Look at the carrots. They are yummy.(出示句型，小组读，个别读)[设计意图]在多媒体的辅助下以一个谜语导入本课的新授知识，富有一定的创意，容易激发学生的好奇心，调动学生的积极性，并在自编的chant 中不知不觉地学习如何描述carrot 。

3.Teach“cumumber(s)—tender—fresh”1)T: Look! A plate. What’s on the plate? Who wants to come tothe front and taste? Be brave! T: Close your eyes. Open your mouth. Eat it. Tell us: What is it? S1: It’s …T: Yes. A cumumber. (出示单词卡)学生读。

A game: Step the word … Jump the word… Shoutthe word cucumbers2)Show the pictures and the word card and count the cumumbers and elicit the word “cucumbers”. (Eg. One cucumber, cucumbers … many cumumbers.)贴出图片和单词教学。

T: Look at the cumumbers. They’re tender. (出示实物黄瓜) Then , show the word “tender” and ask Ss to read it. 趣味操练：生生互相击掌并摆手，cumumber，cumumber，tender，tender ，tender.(Use the differentintonations.) 3)The cumumbers are tender. They’re fresh. (Show two cumumbers and compare them.) Show the word card “fresh” and let Ss read it.4)出示小组操练句子：“Look at … They’re…” T: Look at the cumumbers. They are fresh. Look at the carrots. They are yummy.Look, so many things here. (apples,watermelons, oranges, carrots,cumumbers) Can you use “Look at … They’re…”to describe them?[设计意图]教师通过cumumber 并让学生品尝引出新单词的教学，并辅助一个单词游戏来深入巩固这个单词，通过比较让学生了解fresh 的含义，这样直观教学法有助于学生理解和掌握单词。

4．Teach“tomato (es)—juicy”1) T: Look at the cumumbers. They’re fresh. I like cumumbers.What does Sarah like? Listen and try toget the answer.(放录音: I like it very much. It is red. It is round. It is in the field. It is cheap in the market.) Ss: …当学生得出答案时，教师出示实物及单词，逐步引出one tomato, two tomatoes,从而引出tomato的复数形式。

Play the finger exercises.请学生看老师的手指数量来判断应该使用tomato还是tomatoes。

（出示实物tomato）T: Look at the tomatoes. What colour are they?Ss: … T:Yes.They’re red and juicy.(用刀切开并展示词卡)Then ask the boys and girls repeat it. T: Look at the tomatoes. They’rejuicy.(引导学生回答)S1: Yes. They’re juicy.Then, ask Ss to do pair work.[设计意图]在这里教师应用了一个不同的导入方法，让学生通过听一段描述式录音从而引出tomato。

应用finger游戏让学生掌握tomato的单复数关系，避免了讲语法的枯燥，符合小学生的心理特征。

5.Teach potato(es) — tasty1)出示一个袋，T: Look at the bag. Can you touch and guess“Which one is the potato?”Ss touch it and try to find out thepotato. 通过这个“摸一摸”游戏，引出新单词potato,然后出示单词卡，让学生认读。

接着引导学生数一数共有多少个potato。

2）Play a short game: “High and low”巩固操练potato的读音。

3）T: Look at the tomatoes. They’re red. Look at the potatoes.They’re brown. 编一个chant巩固: Tomatoes, tomatoes,“ t” is for tomatoes. Potatoes ,potatoes, “p ”is for potatoes.(小组一起吟唱)4）T: When the potatoes become fries, they’re tasty. (Use CAI and show the word card, too)5)操练句型：Look at the … They’re… I like ….(选择图片与伙伴互相说说)[设计意图]在这里教师让学生通过摸一摸、猜一猜的方式引出potato。