课后反思
本节课在处理对话How did Mike change? How did John change?时，最开始设计的是表格，但是后来发现难度过大，学生可以填出表格，但是不能用语言描述，对before，Now的用法也认识不清。本着能够让学生正确输出句子的基础上，所以改成了选择形式，同时为了降低难度，只设置了两个选项。表格并没有舍弃也调到后面，作为是对前面知识掌握程度和情况的一个初步检查和巩固。通过课堂表现来看，学生对重难点掌握较好，在输出时，对before,Now 的用法有了一定的时态意识。这是本节课做的比较成功的一点。
另外本节课，在分片段解决问题时，按照让学生合课本先听，然后重复，教师出示句子，讲解语音语调，学生模仿，学生展示的步骤。在这个过程中，学生的语言输入和输出机会较多，符合对话课让学生多听多说的特点，课堂学生模仿有进步。
但本节课也确实存在一些不足,我的不足如下
1.对话课听力必须让孩子合上课本。课上有同学习惯依赖课本，在听时会边看边听，这样不利于听力的培养，教师要及时适时提醒。
2小组竞赛结果放在homework之前。课堂上最后一定要反馈。
3.表情放松，保持微笑。自己不要在心里给学生设定预设，认真倾听学生的回答。调控好自己的状态和心情。
4..教师语言可以夸张一些，抑扬顿挫，增强和学生之间的互动性。
课件43张PPT。Unit4 Then and nowB talk
Time- travel box时光机Look and say
说出时光机里单词的过去式Come and look at my old photos!wearing a grey T-shirtwearing a pink T-shirtBefore, I was active.Now, I am quiet.2010.05Before, I didn't wear glasses.Now, I wear glasses.2012.05 I am different now.changed(变化)
a lot2010.052016.05Mike's friends are also talking about something funny. Let’s listen and choose.
1.What are they talking about?
Mike’s hobby
B. Mike’s old photos.
2.What grade was Mike in?
A .Grade 1
B. Grade 5 I am different now. I guess Mike and John are different, too. Let’s watch and match:
How did Mike change（变化）?
How did John change（变化）?BeforeNowWatch and matchBeforeNow1.How did Mike change（变化）?A. liked pinkB. doesn’t like pinkJohn, come and look at Mike’s old photos!1.How did Mike change（变化）?A. liked pinkB. doesn’t like pinkTips :
Before,谈论过去，涉及过去时;
Now，谈论现在，涉及一般现在时liked pinkdoen’t like pinkBefore, Mike_________.
Now, he __________in class.A. was quietB. is active2. How did Mike change（变化）?We are all different now !Before, Mike_________.
Now, he __________in class.A. was quietB. is activewas quietis active2. How did Mike change（变化）?3.How did John change（变化）?A. was shortB. couldn’t ride a bikeC. goes cyclinggo cycling=ride a bikeThat’s good exercise!3.How did John change（变化）?A. was shortB. couldn’t ride a bikeC. goes cycling every daywas shortcouldn’t ride a bikegoes cycling every dayTips :
Before,谈论过去，涉及过去时;
Now，谈论现在，涉及一般现在时Talk about Mike's and John's changesBefore, Mike/John _________.
Now, Mike/John
_________.
He is different now.Tips :
Before,谈论过去涉及过去时;
Now，谈论现在涉及一般现在时tallListen and imitateJohn, come and look at Mike’s old photos!We are all different now !That’s good exercise!role playPay attention to your pronunciation and innotationHow did you change（变化）?Appearance（外表）: short---tall;thin---strong;
didn't wear glasses---wear glasses;
had long/ short hair---have long/
short hair
Charter(性格): quiet-- -active
Ability（能力）: couldn't---can read/write/ride a bike....
Hobby（爱好）:didn't like---like eggs/cats/dogs/math/.....Before, I...
Now, I...Tips again :
Before,谈论过去,涉及过去时;
Now，谈论现在,涉及一般现在时How did Sun Yang change?Before,____________.
Now,______________.he couldn't swimhe goes swimming every dayHow did Yao Ming change（变化）?Before,_____________________.
Now, ____________________.he couldn't play basketballhe plays basketball every dayHow did Wu Yifan change?Before,________________.
Now,__________________. he didn't wear glasseshe wears glassesHow did Zhao Liying change?Before,_______________.
Now,_________________.she had short hairshe has long hairTask: How did the mother and the boy change?Before, the boy/the mother___________.
Now, the boy/the mother____________.Before, our parents had black hair.
Now, they have white hair.
Before, they were young.
Now, they are old.
Please cherish（珍惜） your time with your parents!SummaryWhat have you learned today?Before, I/He /She…
Now, I/He /She…Unit4 B talkHomework1.How did your parents change? Write it down.
2.Imitate the dialogue 4 times.
3. Complete the exercise book. Congratulations!Let’s try教材分析
本部分通过Mike与陈杰谈论旧照片的情景呈现描述人物变化的核心句型：Before，I∕ he ∕she∕was∕wasn’t…Now, I∕she ∕he it am ∕is (not)…帮助学生通过听力活动获得Let’s talk板块的人物及场景信息，为进入正式的对话学习做好准备。本部分的教学目标是：学生能听懂Mike与陈杰谈论的是什么，以及通通过对话信息猜测Mike 所在的年级。
Let’s talk 教材分析
本部分的核心句型是：Before, I was…Now, I am …等，教材通过Mike陈杰和John三个小朋友一起在看老照片，谈论自己的变化来让学生感知上述句型的语义及语用情景，学会运用Before, I was…Now, I am …等描述自己与他人的变化。
本部分的教学目标是：学生能理解对话大意，并能准确朗读所学对话（包含正确的语调和意群停顿）；能在图片的帮助下，在情景中恰当运用句型Before，I∕ he ∕she∕was∕wasn’t∕ didn’t…Now, I∕she ∕he∕ am ∕is…用3~5句话描述自己与他人在性格 ﹑爱好﹑ 行为等方面的变化
PEP人教版六年级下册Unit4 Then and now
B let’s talk
教学目标：
学生能理解对话大意，并能准确朗读所学对话（包含正确的语调和意群停顿）；
能在图片的帮助下，在情景中恰当运用句型Before，I∕ he ∕she∕was∕wasn’t∕ didn’t…Now, I∕she ∕he∕ am ∕is…用3~5句话描述自己与他人在性格 ﹑爱好﹑ 行为等方面的变化。
教学重难点
理解Before，I∕ he ∕she∕was∕wasn’t∕ didn’t…Now, I∕she ∕he∕ am ∕is…语用情境，并正确运用
Before，I∕ he ∕she∕was∕wasn’t∕ didn’t…Now, I∕she ∕he∕ am ∕is…中动词时态的变化
教学过程：
Step1 Preparation:
Hello! Boys and girls! Nice to meet you! In this class, you are group1. you are group2! Today we will learn Unit4 B talk.
Class, I prepared some surprise for you. Look! What’s this! Yes, it’s a box. But it’s not only a box. Let’s watch! It’s actually a magic time-travel box. Now there are many words in the box. When they come out, please say their past tense.
Step2 Presentation:
1.解决Come and look at my old photos!
用教师过去和现在照片过渡引入It’s the first time we met. I have prepared some old photos. Do you want to see my old photos? Come and look at my old photos!
2.出示教师照片，解决Wearing a pink T-shirt
Look! This is me 6 years ago. I am wearing a pink T-shirt. She’s wearing a pink T-shirt. Wearing a pink T-shirt.
3. .出示教师照片，初步感知before, now用法
4.解决 let’s try
It’s really funny to look at old photos. Mike’s friends are also talking about something funny. Let’s listen and let’s try.
5. 整体看视频I am different now. I guess Mike and John are also different. Let’s listen and match:
(1). How did Mike change?
(2). How did John change?
Before matching, let’s read these words together.
6. Watch the video 板书before ，now
7.合课本，听片段一，解决问题一class， Mike changed a lot, for example,did he like pink before？Now，let’s listen and finish this :
Before, Mike________.
Now, he__________
A. liked pink B. doesn’t like pink
What does Chen Jie say？
讲解语音语调
听音模仿
学生跟读回答
核对答案What does Mike say？Mike says, “Yes ,but I don’t like pink now.”
So we know :Before, Mike liked pink. Now, he doesn’t like pink.
8.听片断二，解决问题二Mike的第二个变化，思路同问题一
Before, Mike_________.
Now, he __________in class.
A. was quiet B. is active
9听片断三，解决问题三，John的变化，顺便解决go cycling
Before, John____________.
Before, he _______________.
Now, he___________________.
A. was short B. couldn’t ride a bike C. goes cycling every day
10.根据表格谈论Mike和John的变化
Step3 Practice:
listen and imitate
role play
谈论自己的变化talk about “how did you change?”
出示明星过去和现在的照片，谈话明星变化talk about the changes of the stars
Step4 Production:
1. 观察视频说说父母的变化How time flies! We are all different! How about your parents? Let’s watch the advertisement and find out: How did the mother and the boy change?
2.情感渗透
Before, our parents had black hair.
Now, they have white hair.
Before, they were young.
Now, they are old.
Please cherish（珍惜） your time with your parents!
Step5 Summary
What have you learned today?
Homework
1. How did your parents change? Write it down.
2. Imitate the dialogue 4 times.
3. Complete the exercise book.
板书设计
Unit4 B talk
Before, I/He /She…
Now, I/He /She…
评测练习
2.How did you change（变化）?
Appearance（外表）: short---tall;thin---strong;
didn't wear glasses---wear glasses;
had long/ short hair---have long/
short hair
Charter(性格): quiet-- -active
Ability（能力）: couldn't---can read/write/ride a bike....
Hobby（爱好）:didn't like---like eggs/cats/dogs/math/.....
3.How did Sun Yang change?
How did Yao Ming change（变化）?
How did Wu Yifan change?
How did Zhao Liying change?
Before,_______________.
Now,_________________.
4.How did the mother and the boy change?
