(1)教师播放歌曲，学生静听。
(2)再次播放歌曲录音，让学生小声跟唱，体会歌曲的节奏。 (3)继续播放歌曲录音，让学生大声跟唱。 (4)学生配上动作表演唱。 3．活动：“希望小学”设计大赛
活动方式：教师播放一段简陋的农村小学的录像，告诉学生：“希望工程”将为他们修建一个崭新的学校。要求全班学生四人为一小组，共同设计这所农村小学，并附上设计说明。如：
Then they didn't have a dining hall. They had their meals in their classroom.Now they have a dining hall near the kitchen. There was no computer room in their school. Now they have a big computer room on the fifth floor.
最后教师将各组的设计稿和设计说明张贴在教室里，请全体学生共同欣赏点评。 五、家庭作业（Homework） 1.听录音，跟读对话。
2.用英文向家人成朋友描述学校的今昔变化。
3．完成活动手册配套练习。
板书设计
Unit 4 Then and now
grass gym dining hall …years ago …months ago
There was no gym in my school ten years ago.
Now there's a new one in our school.
第二课时
课时目标
1．复习单词和词组：dining hall，grass，gym，ago。
2．能听、说、读、写句子：There was no library in my old school．Tell us about your school, please. How do you know that? There were no computers or Internet in my time．
3．能听、说、认读单词和词组：star，easy，look up，Internet；句子：Could you see stars at night? The Americans took about five days to get there in 1969.1 looked- it up on the Internet.
教学重难点
1．重点：学习句子：There was no library in my old school. Tell us about your school, please. How do you know that? There were no computers or Internet in my time. 2．难点：能正确使用一般过去时和一般现在时。
媒体链接
1．课文挂图和配套VCD。 2．单词卡。 3．录音机和磁带。
教学过程
一、热身（Warm-up） 1.师生问候。
2.Sing the song Changes i咒me.
二、复习（Revision)
1．复习词语：school，library，playground，computer room，art room，music room，dining hall，grass，gym。教师先出示图片，让学生看图说词语，然后再出示单词卡片，抽读词语，最后全班拼读生词。 2．活动：真真假假
活动方式：教师随机出示一张单词卡，如出示单词卡grass，教师读grass，表达是正确的，那学生就立即跟读单词grass。如果教师读成gym，学生就不能跟读并要说：No.该活动用小组竞赛的形式进行，给反应快的小组加分，当教师表达不正确时，如果有学生跟读不正确的表达，那他所在的小组就要被扣分，教师可适当加快速度，活跃现场的气氛。 3．活动：卡通明星大闹校园
活动方式：教师拿出事先准备好的三个盒子，三个盒子上分别标注着：who，where，what。让学生说出一些卡通明星，教师将其写在纸上投入标注着who的盒子中。where的盒子里放人的是一些学校的场所，what的盒子里放入的是一些动作词组。请学生在三个盒子中分别抽取一张纸条，利用这三个单词连成两个句子，看看谁连成的句子最有趣。如：Mickey Mouse is in the music room. He can bath. Lan Yangyang is in the library. He can play football--
三、新课呈现( Presentation)
1．教学单词star，easy，look up，Internet
(1)教师出示星空的图片介绍说：Look! There are lots of stars in the sky. Some are big. Some are small．We can see them at night.板书：star，然后全班齐读单词。
(2)教师指着图上的一个星星问：Do you know the name of this star?引导生回答：Sorry，I don't know.教师补充学生的回答：But I can look it up on the Internet.教师板书：look up，Internet．让学生说说这两个词的意思，然后带读这两个词。
(3)教师出示单词gym，并对全班说：Spell，please.全班拼读后教师问：Is it easy?I think it's very easy.板书：easy，让学生说说这个easy的意思，最后全班齐读单词。
2．教学句子：There was no library in my old school．Tell us about your school，please.
教师用课件出示一个“希望小学”的画面，对全班说：我们将请出这所“希望小学”里的一位同学来介绍他们的学校。但是他要求同学们要一起来说这句话：Tell us about your school，please.教师板书：Tell us about your school，please.全班齐读句子数遍后，教师点开录像画面，播放录像。
录像的解说词如：Welcome to our school! This is my classroom. There was no TV and computer in our classroom. Now we have a big TV and a new computer in it.There was no library in my old school. But now there is a big library in our school，There are many books in it．教师板书：There was no library in my old school．让学生说说句子的意思并齐读句子。
3．教学句子：How do you know that? There were no computers or Internet in my time.
教师提问：Who was the first man to step on the moon? When did he get there?How did he get there?根据学生的回答，教师追问：How do you know that?根据学生的回答教师总结：We can look up many things on the Internet. But there were no computers or Internet in my time.教师板书：How do you know that? There were no computers or Internet in my time.并带读。 4．教学A. Let-s try
(1)教师让学生翻开课本，读一读A．Let-s try中呈现的两个句子。 (2)教师播放A. Let-s try的录音，学生昕完录音后判断正误。 (3)全班校对答案。
5．教学A. Let -s talk
(1)教师播放A. Let's talk部分的录像，要求学生带着问题看录像：What was Grandpa's school like?录像