新版人教版PEP六年级英语下册Unit4 Then and now教案
新版人教版PEP六年级英语下册Unit4 Then and now教案
第一课时
课时目标
1．能够听、说、读、写单词和词组：dining hall，grass，gym，ago。
2．能够听、说、认读句子：There was no gym in my school ten years ago. Now there's a new one in our school．并能在实际情境中正确运用。
3．会唱歌曲《Changes in me》。
教学重难点
1．重点：学习单词或词组：：dining hall，grass，gym，ago;学习句子：There was no gym in my school ten years ago. Now there's a new one in our school.
2．难点：能正确使用一般过去时和一般现在时。
媒体链接
1．单词卡片。
2．教学挂图和配套VCD。
3．录音机和磁带。
教学过程
一、热身（Warm-up）
Let's do:
Go to the library.
Read a book．
Go to the teachers' office.
Say hello.
Go to the playground.
Play football．
Go to the garden.
Water the flowers．
要求学生边说，边做动作。通过此活动，既可以活跃课堂气氛，又能起到复习的作用。
二、复习（Revision)
1．活动：我与“喜羊羊”捉迷藏
活动方式：教师出示事先制作好的课件，告诉学生：“喜羊羊”藏身于我们学校中，想与同学们玩捉迷藏，现在就请同学们来猜猜“喜羊羊”藏身于何处。全班学生一起重复问句：Where is Xi Yangyang?教师请学生来问：Is he in the teachers' office? Is he in the garden? Is he in the library?…学生每猜一处，教师就在课件上点击该处，如果点不出“喜羊羊”，全班学生就说：No，he isn't.如果点出，则说：Yes，he's in the library.
2．抽读已学过的校园场所类的单词并拼读：teachers' office，library，playground, computer room, art room, music room"'
三、新课呈现（Presentation）
1．教学单词和词组dining hall，grass，gym，ago
(1)教学单词grass
教师出示草坪的图片问：What's this?同时自答：It's grass.并板书：grass。教师提问：What do you often do on the grass?引导学生回答：We can play football on the grass.教师用升、降调带读单词grass，引导学生拼读记忆单词grass。
(2)教学单词gym
教师拿着体育馆的图片，不让学生看见。介绍说：You often play basketball in it．Sometimes you have a P．E class in it．Guess. What is it?掌生猜过后，教师把图片展示给学生看：Look. It-s a gym.随后教师板书：gym，并带读gym，引导学生拼读记忆gym。
(3)教学词组dining hall
教师指着教室的墙面问：What-s this?学生回答：It-s a wall．教师接着问：Can you spell it?学生拼读单词wall，教师板书wall。然后教师将wall改成hall，让学生试读单词。告诉学生：hall是大厅、礼堂的意思。全班拼读记忆单词hall。接着教师在hall的前面加上dining，让学生猜猜dining hall的意思。师追问：What do you often do in the dining hall?学生回答：We often have lunch in the dining hall．教师用升降调带读词组dining hall，并让学生拼读记忆该词组。
(4)教学单词ago和词组...years ago，...months ago
教师介绍：I played basketball in the gym three days ago.1 went to Hangzhou two months ago.l visited the Great Wall three years ago.救师板书：…days ago，…years ago，…months ago，让学生说说ago的意思。在理解的基础上，让全班拼读记忆单词ago。最后教师让学生用ago 来造句。
(5)Say the chant:
Garden，garden.
See the flowers, see the flowers.
Playground, playground.
Let-s run，let's run．
Dining hall, dining hall.
Have lunch，have lunch．
Grass，grass.
Play football, play football.
Gym, gym.
Play basketball, play basketball.
活动方式：要求学生边说chant，边做动作。
2．教学句子There was no gym in my school ten years ago. Now there-s a new one in our school．
教师出示两张新旧学校的图片介绍并板书：There was no gym in my school ten years ago. Now there's a new one in our school．然后让学生模仿这两个句子比较学校的今昔。如：
There were no computers in our school ten years ago. Now there are many computers in our school．
There were sixteen classes in our school ten years ago. Now there are thirty classes in our school．
3．教学A．Let -s learn
(1)教师播放A. Let -s learn部分的课文录音，学生边听边跟读。
(2)学生两人一组表演对话。
(3)请几组学生到台前表演。
四、巩固与拓展（Consolidation and extension）
1．教学Find the mistakes
活动方式：先让学生独立阅读这段话，然后圈出图画中与描述不符之处，最后全班讲评订正。
2．教学歌曲Changes in me
(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?录像播完后，让学生回答问题。
(2)让学生说说The Americans took about five days to get there in 1969.这句话的意思。
(3)再次播放A. Let's talk的录像，每句后暂停，要求全班跟读。
(4)播放A. Let -s talk的录像，将声音关闭后，要求全班分成三组为录像配音。
四、巩固与拓展（Consolidation and extension）
1．三人一组分角色表演A. Let's talk部分的内容，然后请一些学生到台前表演。
2. A. What was your school like five years ago? What is it like now? Draw and talk.
(1)教师出示学校以前的照片给学生看，让学生根据课本的要求画出现在的学校和过去的学校。
(2)学生展示并介绍自己的作品。
3．活动：评选校史讲解员
活动方式：告诉学生：下周有一些外宾要来学校参观，学校想选出一些同学来介绍学校的过去和现在。现在请你们根据学校提供的照片编写解说词，并向全班进行解说，成绩优秀的三名学生可成为讲解员为外宾服务。如：
There was no library in my school. But now we have a modern library. There are many books, CDs, computers in it.
1. 听录音，跟读对话。
2．完成活动手册配套练习。
3．用英文向家长讲述学校的今昔。
板书设计
Unit 4 Then and now
star Internet
look up easy
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.
第三课时
课时目标
1．能听、说、读、写单词或词组：cycling, ice-skate, badminton, go cycling。
2．能够听、说、认读句子：I didn't like winter before.I thought it was too cold,and I couldn't go cycling. How about now? Now I love to ice-skate and play in the snow.并能在实际情境中正确运用。
教学重难点
1．重点：能听、说、读、写单词：cycling, ice-skate, badminton, go cycling。
2．难点：记忆单词badminton。
媒体链接
1．配套的教学课件。
2．图片和单词卡。
3．录音机和磁带。
教学过程
一、热身（Warm-up）
Say the chant:
Garden, garden.
See the flowers, see the flowers.
Playground, playground.
Let-s run, let's run.
Dining hall, dining hall.
Have lunch, have lunch.
Grass, grass.
Play football, play football.
Gym, gym.
Play basketball, play basketball.
活动方式：要求学生边说chant，边做动作。
1．Play a game:Bomb
活动方式：教师将school, library, playground, computer room, art room, music room. dining hall, grass, gym等单词卡片贴在黑板上，并将炸弹放在某个单词下，要求学生按照顺序快速说出这些单词。当读到埋有炸弹的单词时，全班学生则要跳过不能发出声音，如果谁违规了，
全班学生则对着他说“One，two，bomb”。
2．活动：学校今昔谈
活动方式：学生两人一组就学校的过去和现在展开对话，然后教师请几组学生到讲台前表演。如：
Sl: Was there a computer in the classroom ten years ago?
S2: No, there was a TV and some fans in the classroom.
Sl: Was there a library in our school five years ago?
S2: Yes, but it was small. Now there is big and bright.
Sl:I like the gym.I often play basketball and ping-pong in it.
S2: But there was no gym three years ago.
Sl: You're right．
3．活动：听一听，猜一猜
活动方式：教师藏起一张运动项目的图片，让学生根据老师的描述，猜一猜是哪项运动项目，在活动过程中，学生可以随时猜，直到猜对为止，猜对的学生应给予奖励。如教师藏起一张蹋足球的图片：
T: We often play it on the playground.
S：Morning exercises.
T: No. We play a ball．
S：Basketball．
T: No. We often use our feet and head.
S：Football．
T: Yes．
教师示范后，可让一名学生抽出一张运动类的图片，由该生描述它的特征，其他学生来猜。
三、新课呈现( Presentation)
1．教学单词cycling和词组go cycling
教师描述：This is a sport. It's a popular sport. It's a cheap way to get around.It-s a sport of traveling on a bicycle.学生猜测后，教师出示骑车的图片说：This sport is cycling.教师板书：cycling，并采用“大小声”的方式操练单词。
教师边说：go cycling边模仿骑车的动作，骑到某个学生面前模拟将自行车交给这位学生，这位学生接过自行车后接着模仿骑车的动作说：go cycling，依次类推，全班接力说词组。游戏结束，教师板书：go cycling，全班边模拟骑车的动作边读词组。
2．教学单词badminton
教师出示羽毛球拍问学生：Do you like badminton? Can you play badminton?教师板书：badminton，play badminton，教师先分音节带读单词，然后引导全班齐读单词，再比一比谁最快记住这个单词。教师边挥动羽毛球拍边说：play badminton，然后教师将球拍交给学生，让学生也边挥拍边说词组。
3．教学单词ice-skate
教师出示冰鞋的图片问：Can you ice-skate?学生回答：Yes，I can．(No，I can' t.)教师板书：ice-skate，用升降调带读单词，全班拼读记忆单词ice-skate。
4．教学句子I didn't like winter before.I thought it was too cold，and I couldn-t go cycling.
教师提问：Which season do you like best? Why?学生回答后，教师说：I like winter. But I didn't like winter before.I thought it was too cold, and I couldn't go cycling.板书：But I didn't like winter before.I thought it was too cold, and I couldn't go cycling.眚诉学生：thought是think的过去式，could是can的过去式。最后让学生说说这两句话的意思，引导全班齐读句子。
5．教学句子：How about now? Now I love to ice-skate and play in the snow.
教师：I didn-t like winter before. How about now? Guess，please.学生发言后教师说：Now I like winter.I love to ice-skate and play in the snow.教师板书句子：How about now? Now I love to ice-skate and play in the snow.全班齐读句子。
6．教学B．Let -s learn
(1)教师播放课文录音，全班静听，理解课文。
(2)再次播放B．Let's learn的课文录音，学生边听边跟读。
(2)学生两人一组表演对话。
四、巩固与拓展（Consolidation and extension）
教学Listen，match and say
(1)学生独立观察图片。
(2)教师播放录音，学生听音连线。
(3)全班讲评订正。
(4)请学生根据范例，看图说句子。
五、家庭作业（Homework）
1．听录音，跟读单词。
2．完成活动手册配套练习。
3．用英文与朋友或家人谈论自己喜好的变化。
板书设计
Unit 4 Then and now
go cycling ice-skate play badminton
I didn-t like winter before. I thought it was too cold, and I couldn-t go cycling.
How about now?
Now I love to ice-skate and play in the snow.
第四课时
课时目标
1．能听、说、读、写句子：Before，1 was quiet. Now，I'm very active in class.1 was short，so I couldn-t ride my bike well．Now，I go cycling every day.并能在实际的情境中运用。
2．能听、说、认读单词：different，active。
3．听懂、会说本课中的对话，并能在情境中运用。
教学重难点
1．重点：能听、说、读、写句子：Before，1 was quiet. Now，I-m very active in class.1 was short，so I couldn't ride my bike well. Now，I go cycling every day.并能在实际的情境中运用。
2．难点：掌握different的发音。
媒体链接
1．单词卡片。
2．录音机和磁带。
3．课文挂图和配套VCD。
教学过程
一、热身（Warm-up）
1．师生问好。
2. Sing the song Changes in me.
二、复习（Revision)
1．Play a game:演一演，猜一猜
活动方式：教师将football，basketball，ping-pong，hiking，badminton，iceskate，cycling，kungfu等运动类单词卡片面期下放在桌上。每组请一名学生上台抽取一张卡片，并用动作表演卡片上的运动，同组的其他学生根据表演猜运动名称。比一比哪组猜中的单词多。
2．抽读已学过的运动类单词并拼读：football，basketball，ping-pong，hiking，badminton, ice-skate, cycling, kungfu…
3．活动：My favorite sport
活动方式：学生两人一组，就所喜欢的运动项目进行问答，然后请两、三组同学到台前表演。如：
Sl: Do you like ping-pong?
S2:1 liked it three years ago.
Sl: How about now?
S2: Now I like playing basketball. It -s very interesting. How about you?
iSl:1 liked badminton then, but now I like cycling.
三、新课呈现（Presentation）
1．教学单词different
教师出示自己小时候的照片，问：Who's she? Guess, please.学生猜测后，教师说：This is me. At that time, my hair was short and my face was big. I-m different now.l think you are all different now.板书：different，让学生说说它的意思。教师分音节带读单词，最后用“大小声”操练单词。
2．教学单词active和句子Before,1 was quiet. Now, I'm very active in class.
教师提出一个简单的问题，全班踊跃举手时教师表扬：You are all active now.板书：active，让学生说说单词的意思，然后师带读单词。教师提问：Who is active in our class?学生发言后，教师指着其中的一位学生说：Before,A was quiet. Now, she/he-s very active in class. Good girl/boy!然后教师让这位学生来说说自己的变化：Before,1 was quiet. Now, I-m very active in class.教师板书：Before,1 was quiet.Now, I-m very active in class.全班齐读句子。最后请学生模
仿这一句型说说自己的
不同。
3．教学句子1 was short, so I couldn-t ride my bike well. Now,I go cycling every day.
教师介绍：I like cycling very much.I go cycling every day. But when l was young,1 was short, so I couldn't ride my bike well.教师板书：1 was short, so I couldn't ride my bike well. Now,I go cycling every day.然后带读句子。最后让学生模仿这一句型说说自己的不同。如：
1 was thin, so I couldn't play basketball well. Now,I play it every day.
1 was young, so I couldn-t clean my room. Now,I clean my room every weekend.
4. 教学B．Let -s try
(1)学生朗读B．Let's try中呈现的问题和选项。
(2)教师播放B．Let's try的录音，学生听完录音后勾出正确的选项。
(3)全班校对答案。
5．教学B．Let's talk
(1)教师播放B．Let-s talk的录像，要求学生带着问题看录像：How did Mike change?录像播完后，让学生回答问题。
(2)播放B．Let's talk的录像，每句后暂停，全班跟读。
(3)让学生两人一组表演对话，并请一组学生到台前表演。
四、巩固与拓展（Consolidation and extension）
1. Talk about your friends or family members. How did they change?
活动方式：学生自己组织一段话来谈谈家人和朋友的变化。如：
Joe is my brother. He was cute ten years ago. He was 0.8 meters. He liked playing toy cars. He had many toy cars. He liked red. He had red caps, red T-shirts,
red shoes．
Now he's ten years old. He-s 1.5 meters. He likes playing badminton. He's strong and healthy. He likes blue. His schoolbag is blue. His bike is blue.
学生先四人一组交流各自的表述，最后教师请一些学生上台交流。
2．Play a game：猜猜他（她）是谁？
教师准备一些明星小时候和现在的照片制作成课件。教师先让学生看明星小时候的相片，让学生用过去时来描述；接着让全班学生来猜猜这是哪位明星，猜出后再让学生描述现
在的他（她）。
五、家庭作业（Homework）
1．听录音，跟读对话和单词。
2．完成活动手册配窭练习。
板书设计
Unit 4 Then and now
different active
Before,1 was quiet. Now, I-m very active in class.
1 was short. so I couldn't ride my bike well. Now,
I go cycling every day.
第五课时
课时目标
1．能听、说、认读单词：race, nothing, thought, felt, cheetah, trip, woke,dream。
2．能听懂、会说句子：There were many animals in that race. But suddenly he tripped and fell.
教学重难点
1．重点：能听懂、会说句子：There were many animals in that race. But suddenly he tripped and fell.
2．难点：掌握单词cheetah的发音。
媒体链接
1．单词卡片。
2．录音机和磁带。
3．课文挂图和配套VCD。
教学过程
一、热身（Warm-up）
1．师生问候。
2．Say the chant:
Cycling, cycling,
Go cycling.
Go．cycling in the park.
Swimming, swimming,
Go swimming.
Go swimming in the pool.
Football, football,
Play football.
Play football in the playground.
Badminton, badminton,
Play badminton.
Play badminton in the gym.
活动方式：要求学生边说chant，边做动作。
二、复习（Revision)
1．全班抽读单词或词组：dining hall，grass，gym，ago，cycling，go cycling，ice-skate，badminton。
2．活动：小记者在行动
活动方式：学生四人一组，三人扮演记者以学校或家庭的今昔变化轮番向一人提问。如：
QI: How many people are there in your family?
S: There are four. They are my father, my mother, my sister and me.
Q2: How many people were there ten years ago?
S: There were four, too. They were my parents and grandparents.
Q3: Where did they live?
S: They lived in an old house. There were two bedrooms and a kitchen in it.
Q4: Where do you live now?
S: We live in a new house. It has two floors, three bedrooms, two bathrooms,a kitchen,a dining room and a living room.
三、新课呈现( Presentation)
1．教学单词race，cheetah和句子There were many animals in that race.
教师出示动物赛跑的图片并介绍：This is a race. There were many animals in that race. The cheetah is the fastest of all.板书：race，cheetah和句子There were many animals in that race.先让学生说说这两个单词的意思并引导学生拼读，然后让学生说说句子的意思。
2．教学单词thought，felt，woke，trip和句子But suddenly he tripped and fell．
(1)教师出示单词：think，feel，wake，让学生说说这些动词的意思。然后告诉学生这些动词的过去式都是不规则变化的，边说边将板书补充成：think-thought，feel-felt，wake-woke，并带读这六个单词。
(2)教师板书：trip，让学生说说单词的意思。告诉学生：trip作为名词时意为“旅行”，作为动词时意为“绊倒”，它的过去式是规则变化的。让学生说说该单词的过击式，教师根据学生回答将板书补充为：trip-tripped。教师出示课文的插图说：He was in the race. But suddenly he tripped and fell．教师板书：But suddenly he tripped and fell．让学生说出该句子的意思后，师带读。
3．教学单词nothing，dream
教师提问学生：Did you have a dream last night?并板书：dream。先让学生说说单词的意思，再回答问题。教师说：I had a dream last night. In that dream there was nothing I could do,1 was worried.板书：nothing，先让学生说说单词的意思，再带读单词。
4．教学B．Read and write
(1)学生独立阅读课文内容，画出自己不理解的句子。
(2)请学生说出不理解的句子，教师适当指导。
(3)教师播放教学录像，学生边看录像边理解课文内容。
(4)全班在理解的基础上朗读以下句子：
①Wu Yifan drank it and suddenly he felt good,
②There was a second race.
(5)教师再次播放录像，全班跟读。
5．完成B．Read and write部分的练习
(l)Number the pictures.
让学生独立观察这三幅图，按文章的顺序为图片标号。全班找出描述这三幅图的句子，然后教师请一些学生来说说这些句子，最后全班一起看图说句子。
(2) Listen and fill in the blanks.
让学生先独立阅读这段对话，然后教师播放录音，学生根据录音内容填空，最后教师再
播放录音，全班校对答案。
四、巩固与拓展（Consolidation and extension）
活动：Did you have an interesting dream? Tell your dream to your partner. Then write several sentences about it.
活动方式：学生先将一个有趣的梦告诉同伴，然后按照课本的提示将这个梦谊录在课本上，最后请一些学生汇报交流。
五、家庭作业（Homework）
1．听录音，跟读课文。
2．完成活动手册配套练习。
3．用英文把自己一个有趣的梦说给家长听。
板书设计
Unit 4 Then and now
nothing think-thought feel-felt
wake-woke trip-tripped
There were many animals in that race.
But suddenly he tripped and fell.
第六课时
课时目标
1．复习三会单词和词组：star, easy, look up, Internet, different, active, race,nothing, thought, felt, cheetah, trip, woke, dream;四会单词和词组：dining hall,grass, gym, ago, cycling, go cycling,
ice-skate, badminton。复习四会句子：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. Before,1 was quiet. Now,I'm very active in class.1 was short, so I couldn-t ride my bike well. Now,I go cycling every day.
2．能读懂Story time中的故事。
教学重难点
1．重点：复习本单元的单词和句子。
2．难点：能借助图片读懂Story time中的故事。
媒体链接
1．单词卡片。
2．Story time的VCD或录像。
3．录音机和磁带。
教学过程
一、热身（Warm-up）
1.Sing a song Changes in me.
二、复习（Revision)
1．复习三会单词和词组：star, easy, look up, Internet, different, active, race,nothing, thought, felt, cheetah, trip. woke, dream。
(1)先抽读单词卡片，然后让学生看图说单词。
(2)活动：炸弹
活动方式：教师任意指定一个单词做“炸弹”，如：star。在抽读单词卡片的过程中碰到“star”这个单词时，学生只能读“Bomb!”，如果读“star”则被判出局。
2．复习四会单词和词组：dining hall, grass, gym, ago, cycling, go cycling, ice-skate, badminton。
(1)教师出示图片，学生抢答说单词，抢答到的学生还要拼读出单词。
(2)全班齐拼单词。
3．活动：Then and now
活动方式：学生两人一组，就家庭的变化进行对话，最后请一组学生到台前表演。如：
A: Where did you live ten years ago?
B: We lived in an old house. There wasn-t a study and a bathroom in it.
A: Where do you live now?
B: We live in a big house. It's very clean and bright.
A: How did your father go to work then?
B: He went to work by bus.
A: How about now?
B: He goes to work by car.
三、新课呈现（Presentation）
1．教学B. Let's check
(1)先让学生观察课本这三幅图片画的是什么？
(2)教师播放录音，学生听音标号。
(3)全班讲评订正。
(4)教师再次播放录音，学生边听边将没有听到的单词划去。
(5)全班讲评订正。
2．教学B．Let-s wrap it up
(1)教师讲解答题要求。
(2)学生独立填空。
(3)全班讲评订正。
3．教学C．Story time
(1)教师指着插图，先做背景介绍：
T:Look. Zoom and Zip are talking about changes. What are they talking about?Let's read。
(2)学生阅读故事，了解故事大意，画出不理解的句子。
(3)教师播放录像，学生边看录像边理解故事内容。在理解故事内容的基础上，让学生模仿故事中人物的语音、语调朗读下列句子：
Cavemen often ate raw meat.
In 2050, there will be house robots.
They didn't do the dishes either!
We should help the earth now, so birds will have homes and the forests will be healthy and green again.
Before humans lived on the earth, whales already lived in the sea.
If we change now, whales and humans will have a bright future.
Heal the world!
Make it a better place!
四、巩固与拓展（Consolidation and extension）
活动：环保小达人
活动方式：学生六人一组，制作一份英文版的保护环境的宣传海报。可以介绍动植物界及人类的生存危机，也可以介绍一些环保小举措，一起争当“环保小达人”。海报制作完成后先在班级展示，评出奖项，如：“最佳创意奖”“最佳版面奖”，最后选出一些作品进行全校展示。
五、家庭作业（Homework）
1．听录音，进一步理解故事内容。
2．完成活动手册配套练习。
板书设计
Unit 4 Then and now
Cavemen often ate raw meat.
In 2050, there will be house robots.
They didn't do the dishes either!
We should help the earth now. so birds will have homes and the forests
will be healthy and green again.
Before humans lived on the earth, whales already lived in the sea.
If we change now, whales and humans will have a bright future.
Heal the world!
Make it a better place!