教学目标：
1. 掌握下列四会词汇：postcard, letter, e-mail.
2.在创设的情境中运用所学的知识，运用学到的日常用语简单地会话。
3.激发积极的情感因素，培养与人交流的能力。
教学重点：
四会词汇：postcard, letter, e-mail.运用学到的日常用语简单地会话
教学难点：
运用学到的日常用语简单地会话
教学过程：
Step1. Warming-up（热身）
Greeting: Hello, boys and girls. How are you?
Step 2. Learning（新知）
1.Postcard, letter, e-mail
Talk about
（1）What do you write a letter on?
（2）What does a postcard have?
（3）Where can we buypostcards?
2.Talk about: What do you write an e-mail on?
（1） Play the audiotape. Ask some students to read the text.
（2）Introduce
T: Look, here is a shop. It has many postcards. Which one do you like? Why? （Ask the students to answer.）
T: Do you want to choose one to send to your family or friend? Introduce “send” with a picture. Who do you want to send them to?
（3） Now, I’m a clerk. Can you buy it? （鼓励学生用How much ______?及I’ll take ______. 等句子 进行对话，可再叫几名学生进行示范。）
T: very good！ You can get it.
T: Danny, Jenny and Li Ming are in the hotel shop. Let’s listen carefully.
3.Show the questions:
（1）What does Jenny’s postcard have? Who does she want to send it to?
（2）What does Li Ming’s postcard have? Who does he want to send it to?
（3）Listen to the tape
Step3 .Practice（操练）
1. Play a game（游戏）
2. Let's do（P39）
（设计意图：通过以上活动，让学生对本课单词句型能够灵活创新运用）
Step4 Summing up （小结）
板书设计：
Lesson 17 Let’s buy postcards！
a letter on paper.
an e-mail on a computer.
postcards in the hotel shop.