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Part A Let's talk对话内容：Zhang Peng: Hi, John!John: Hi, Zhang Peng!Zhang Peng: Y...

Part A Let's talk对话内容：Zhang Peng: Hi, John!John: Hi, Zhang Peng!Zhang Peng: You look sad. What's the matter?John: I have a problem. I can't find my Chinese book.Zhang Peng: Don't worry. I'll help you find it.John: Thank you.Zhang Peng: Is it in your schoolbag?John: No, it isn't.Zhang Peng: Is it in your desk?John: No, it isn't. My Chinese book is lost.Zhang Peng: Let's ask the teacher for help.John: OK.Part A Let's learn词汇学习：pen pal 笔友lost 丢失found 发现lost and found 失物招领例句：I have a new pen pal from AustraliaI'm sorry to hear that your book is lostHave you checked the lost and found box?Part B Let's talk对话内容：Oliver: Hello, Zhang Peng!Zhang Peng: Hi, Oliver! You look happy. What's the good news?Oliver: I have a new pen pal.Zhang Peng: That's great! Where is he from?Oliver: He's from Australia.Zhang Peng: What does he do?Oliver: He's a student.Zhang Peng: Does he speak English?Oliver: Yes, he does. And he can speak a little Chinese, too.Zhang Peng: Cool! Write to me soon and tell me about your pen pal, please.Oliver: Sure, I will.Part B Let's learn词汇学习：Australia 澳大利亚Canada 加拿大China 中国the UK 英国the USA 美国例句：My pen pal lives in Australia and she's a surferCanada is a beautiful country with many friendly peopleThe UK has a rich history and culturePart C Story time故事内容：Zoom: Wow, Robin! You have so many postcards from different countries!Robin: Yes, I do. I have a pen pal in every country.Zoom: That's amazing! What do they do?Robin: They do different jobs. Some are doctors, some are teachers, and some are even football players!Zoom: Do they all speak English?Robin: No, they don't. Some speak Spanish, some speak French, and some speak Chinese.Zoom: How do you understand them?Robin: I learn a little of their language and they learn a little of mine. It's fun to communicate with people from different cultures.Vocabulary in Unit词汇表：pen pal 笔友lost 丢失found 发现lost and found 失物招领Australia 澳大利亚Canada 加拿大China 中国the UK 英国the USA 美国doctor 医生teacher 教师football player 足球运动员Spanish 西班牙语French 法语communicate 交流culture 文化以上是人教版小学英语六年级上册第四单元的内容。这个单元主要围绕“笔友”这一主题展开，通过对话和故事的形式介绍了如何与他人建立笔友关系，以及在不同文化背景下进行交流的乐趣。同时，还学习了一些与笔友相关的词汇和表达方式。