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2、学会用明信片的形式主动与人交流，学会与他人共处。
3、购物时会运用简单的礼貌用语，养成懂礼貌、尊重他人的好习惯。
二、教学重点、难点：
（一）教学重点：
能正确运用postcard, e-mail, letter，能准确理解课文内容。
（二）教学难点：
能熟练运用所学词汇与句型描述明信片并进行交际。
四、教学过程：
Step 1: Warming up
1、Greeting：
Class begins! Good morning, everyone! How’s the weather today? It’s a sunny day, today. Are you happy? Yes. You can call your friends to go shopping.( take out cellphone) This is a cellphone .you can use it to call your friends .What else can we use to keep in touch ?Let’s look at the screen.
2、Lead in : Are you happy? Yes. You can call your friends to go shopping.( take out cellphone) This is a cellphone .you can use it to call your friends .What else can we use to keep in touch ?Let’s look at the screen. Show pictures : postcard, letter, email and learn these new words.
Step 2: Presentation
1、教授postcard.
出示一张带有熊猫图片的明信片，引出postcard, （渗透发音规律，告诉学生字母o的发音，让学生直呼post，而card一词在第二册已经学过，学生很轻松的就会读单词postcard.）师问What’s on this postcard? (A panda or a picture.) Yes, A postcard has a picture on it. 同时将此句板书A postcard has a picture on it。
出示一张带有天安门图片的明信片。师问What does the postcard have? (A postcard has a picture of Tian’anmen square.) 再出示几张明信片，让学生练习用A postcard has a picture on it. 师将一张postcard放入自制邮箱中，做出send(寄出)的动作。让生齐说send,
send, send. 将I want to send this postcard to ______ .板书。
让生用明信片来练习send…to…的句子.让学生边做动作便练习句子。
2、教授letter.
出示一个带有英文内容信的图片，Look, what’s this? 引出A letter.（提示学生letter在课堂用语中经常用到，是字母的意思，在这里是“信”的意思。）师将“信”与“明信片” 做对比，师强调 A letter has NOT a picture. But a postcard has a picture on it. 3、教授e-mail.出示一个带有电子邮件的电脑的图片，Class, What’ this? Is this a letter?（No.）Is this a postcard?(No)You are right!
This is an e-mail.强调“-”连字符不要丢掉，（并将an 用红色字体表示），师将信与电子邮件做对比，并强调You write a letter on paper; But You write an e-mail on a computer.（设计意图：讲授新词时采用以图引出单词，然后用单词说出句子的形式，直观、形象、易于接受，且有助于学生巩固、理解、运用新知）。4、出示shop背景，或用语言描述。Class, Let’s buy postcards! How much for this postcard？Where do they buy postcards? 听课文录音，回答问题：分角色朗读课文。老师拿明信片自问自答 How much is this postcard. It’ 2yuan.How much are these postcards? They are four yuan.板书。Make a diolague:T:Excuse me! S: Can I help you? T: May I see that postcard,please? S: Sure. T: This postcard has the Great Wall.I want to send this postcard to my mum. How much is this postcard? S; It’s 2 yuan.T: I’ll take two ,please.5、Divide students into groups and make up a dialogue.6、Act out their own dialogue.小组展示对话。(设计意图：进一步巩固新知，使学生学以致用，锻炼了口语交际能力，充分发挥了学生的学习主动性)。7.Do part 3 8. Talk and write
Homework:
Make a postcard by yourself. You can draw a picture on it.
板书：
Lesson 17 Let’s buy postcards!
a postcard has a picture on a postcard
send ………..to……….
a letter write a letter on paper.
an email write an email on a computer.
How much ________ ? ________ yuan.