Unit 4 Then and nowPart A 第一课时Let's try & Let's talk教学目标：1.听说认读单词：star, easy, look up, Internet.2.听说读写句子：There was no library in my school. Tell us about your school, please. How do you know that? There were no puters or Internet in my time.3.听懂Let's try,完成Tick or cross.教学重点：1.听说读写句子There was no library in my school. Tell us about your school, please. How do you know that? There were no puters or Internet in my time. 听说认读单词: star, easy, look up, Internet2. 理解对话。

教学过程：Step 1: Warm up1. Go over words of Let's learn. 教师做动作，学生说单词并造句。

Dining hall. I havelunch in the dining hall. Grass. I play football on the grass. Gym. I playbasketball in the gym.2.教师出示单词卡，全班齐读并拼写单词：dining hall, grass, gym.3.用ago造句。

There was a dog in the park five days ago.Step 2: Presentation1.教学单词star, easy, look up, Internet.(1)画星星简笔画 T: What's this? Ss: It's star. 板书star并教读。

T: Can youspell star? Ss: S—T—A—R. T: It is easy. （板书并教读easy.）(2)出示一个星座图片，T: Do you know its name? Ss: I don't know. T: We canlook it up on the Internet. 板书look up, Internet讲解并教读。

2. (1)出示有图书馆和没有图书馆的学校照片，学生说句子Ss: There was no library inthe school. Now there's a new one. 齐读。

(2)出示有电脑和没有电脑的学校图片。

T: There were no puters or Internet in mytime. 注意are -- were. 学生反复读该句子。

(3) 讲解并教读句子：Tell us about your school, please. How do you know that?3. 学生听录音，老师教读对话。

4.学生自己读对话，回答问题：What was Grandpa's school like?5.学生讲解对话，教师补充答疑。

Step 3: teacher-student interaction1.教读对话，学生小组练习对话。

2.学生灵活运用本课时单词和句型自由编对话。

3. Finish Let's try.Step 4: Classroom tests一、填一填，译一译，读一读。

1. gr_ss ( )2. g_m ( )3. st_r ( )4. dining h_ll ( )二、读一读，选一选。

( ) 1. There was no library in my old school.( ) 2. Tell us about your school, please.( ) 3. Could you see stars at night?( ) 4. The Americans took about five days to get there in 1969.( ) 5. How do you know that?( ) 6. I looked it up on the Internet.( ) 7. There were no puters or Internet in my time.A. 请给我讲讲你的学校吧。

B.你怎么知道的？C. 我以前的学校没有图书馆。

D. 我在互联网上查询的。

E. 1969年，美国人花了五年的时间到达那儿。

F. 我那时候没有电脑也没有网络。

G. 晚上你能看见星星吗？三、判断下列句子是否与图意相符，相符的写A，不符的写B.( ) 1. They looked up on the Internet yesterday evening.( ) 2. The children often play on the grass.( ) 3. There was no playground in my school.( ) 4. The little girl saw the stars at night.学生小结：这节课我学到了_________________________。

板书设计：Unit 4 Then and nowstar, easy, look up, Internet.There was no library in my school.Tell us about your school, please.How do you know that?There were no puters or Internet in my time.Unit 4 Then and nowPart A 第二课时Let's learn & Find the mistakes教学目标：1.能听说认读单词：dining hall, grass, gym, ago2.能听说认读句子：There was gym in my school twenty years ago.3. Now there' s a new one in our school.3. 会唱歌曲《Changes in me》教学重点：1.能听说认读本课时单词和句子。

2. 能正确使用一般过去时和一般现在时。

教学过程：Step 1: Warm up1. Go over the phrases of Unit 3: ate fresh food, went swimming, took pictures,bought gifts, rode a horse, rode a bike , went camping, hurt my foot , went fishing2.教师说短语的第一个单词，学生说出短语，并造一个句子。

如T: took. Ss: Took pictures,I took pictures last weekend. ( 边做动作边说)3. Free talk. T: How was your weekend? Ss: It was fine.T: Where did you go? Ss: I went to...T: How did you go there? Ss: By ...T: What did you do there? Ss: I went fishing. / ...Step 2: Presentation1.教学单词dining hall, grass, gym, ago.2. Show the picture of grass. T: What's this? Ss: It's grass. 板书grass并教读。

3. Chant: Grass, grass. Play football on the grass. 以同样的方法教学dining hall,gym. Chant: Dining hall, dining hall. Have lunch in the dinning. Gym, gym. Playbasketball in the gym.4.教学单词ago及词组... years ago, ... months ago. 教师先说几个句子让学生感受。

T: I went fishing three days ago. I went to Beijing two years ago. 板书并教读ago。

让学生说出... years ago, ... months ago的意思并造句。

5.出示两张新旧学校图片介绍并板书：There was no gym in my school twenty years ago.Now there's a new one in our school. 教读。

学生学说句子，描述学校以前和现在的样子.如：There was no puter room ten years ago. Now there's a new one in our school.6. Play the tape of Let's learn.学生仿读。

Step 3: teacher-student interaction1.小组读单词，开火车读单词。

2.学生灵活运用所学单词句子。

3.完成Find the mistakes.学生先自己读句子，然后小组合作找出错误的地方。

4.学唱歌曲《Changes in me》Step 4: Classroom tests一、读单词，选图片A. B. C. D. E.1. art room2. dining hall3. grass4. puter room5. gym二、读一读，选一选。

( ) 1. There was a grass in the nature park five years ago.( ) 2. People couldn't use the Internet.( ) 3. Now there is a gym in our city.( ) 4. There was no puter room in our school twenty years ago.( ) 5. At that time, people didn't go there by bus.A. 现在我们城市有一座体育馆。