教材分析：
本课时教学内容为新标准英语第7册Module 2 Unit1 I helped my mum.课文以学生熟悉的人物大明为主线，通过介绍大明昨天做得事情来使学生初步体会英文时态中很重要的一个概念：过去时。由于学生第一次接触过去式，所以这个概念在他们脑中非常模糊，只有让他们在相应的情景中不断受到强化和刺激，才有可能将各个动词与过去式建立连接。本课的教学重点为使学生初步建立运用过去式的意识，和怎样才能较为正确的运用过去式。在此基础之上，学习几个动词：wash, help, finish, clean.
教学目标：
1. 知识目标
（1）学生能认读单词：wash, help, finish, clean，以及知道他们的过去式形式；
（2）学生能在“昨天”这个时间范围内正确理解并初步使用过去式；
2. 能力目标
通过学习和操练，使学生能掌握本课表达过去的相关法则，并能在相应的情景中正确使用。
3. 情感目标
通过游戏和活动，激发学生学习英语的兴趣；通过大明帮助妈妈做事情的描述，教育孩子们在家要建立一定的责任感，负起应负的责任。
教学重点：
1. 初步感知过去式的正确用法；
2. 学习生词wash, help, finish, clean，知道并会用他们的过去式；
教学难点：
使学生理解过去式的正确使用范围，学生能有意识的正确使用过去式
教学过程：
一、Warm up
1. Sing a song.
T: Are you happy today? If you are happy, let’s sing the song “If you are happy”。
2. Bomb game.
T: You did a good job. It’s so moving. Do you want to play a game? It’s “bomb game”。 If you see the picture, you read and do the action, but if you see the bomb, you must protect yourself. Are you ready? 1, 2, 3, go.
3. Guessing game.
T: Well done. Sit down please. This time let’s do and guess.
教师示范：教师看一眼图片，然后做动作让学生猜，再请学生上来。
二、Presentation
1. Yesterday.
（1） PPT
T: Look, this is a calendar, today is …？ How about this one? It’s … Yesterday. Now read after me: yes-ter-day. Yesterday 师重复几遍。
（2） T: 拿着卡片让学生开火车读。师将Yesterday贴于黑板上。
2. 初步感知动词过去式。
（1） PPT
T: Yesterday I was very happy, because yesterday was my birthday. Let’s look and listen what did I do?
T: Do you want to listen again.
（2） 回答。
T: What did I do yesterday? 师引导I played in the park. What else?
PPT: 根据学生的回答来显示图片。
（3） T: Excellent. Now let’s read them together.
3. 简单用。
T: I was very happy yesterday. What did you do yesterday?
教师将学生提到的动词分类贴/写在黑板上。
T: Oh. You did lots of things yesterday. Now let’s read them together.
三、Text
1. Whole input listen.
T: That’s what we did. How about our friend Daming, what did he do yesterday? Let’s look and listen.
2. What did Daming do yesterday? Let’s listen again.如果学生答得不好则再听一遍。
3. new words.按学生选择的顺序教。
（1） clean
BB: T: I my room.
T: cleaned
T: 大小声：I cleaned my room.
（2） wash
BB: T: I my trousers.
T: washed ↗↘
T: I washed my hands. I washed my T-shirt.
（3） finish&help（提到任一则两出）
T: finished help
T: I am drawing a pic, but I can’t finish it. Who can finish it?
Who can help me?
4. Practice.
（1） T: （拿着卡片） Let’s read them. 1,2.
（2） T: Now, let’s put them in the right place.（师读句子，故意放错，看生的反应）。
（3） Read the sentences together.
5. Reinforcement.
（1） Passing game.
T: Look, we learned so many things. （师指黑板） we are a little bit tired. Let’s played a game, OK?
T: The first s read the sentence and remember it. Then I will say 1, 2, 3 go. You pass the sentence as fast as you can. Your team win.（师边说边做动作）。
T: Say the sentences to the Ss. Are you ready? 1, 2, 3 go.
T: Clap your hands for them. （有节奏的拍手）
（2）Make sentences.
T: Now I want 3 Ss, who can come here and help me? Each s choose one, and make a sentence to your group member.
T: Who wants to try?
四、Output
1. About task.
T: Just now, we talked about yesterday. Now, let’s say sth about last week. last week Look, this is my son, he is too young to help me, but he kissed me last week. I was very happy. Did you kiss your mum? What did you do last week?
2. （投影下解释） T: … Can you help me?
Look, we have ……（解释每幅图含义） I cleaned my room last week. What about you?
3. T: Understand? Now take out your paper and talk with your partner.
4. T: Who wants to show?