约1700字。

　　八上仁爱版英Unit 4 Topic 3
　　The builders used live models, didn’t they?
　　Section A教学案例
　　The main activities are 1a and 2a. 本课重点活动是1a和2a。
　　Ⅰ. Teaching aims and demands 教学目标
　　1. Learn some useful words and expressions:
　　railway, remain, pull, pull down, worn out, government
　　2. Learn tag questions:
　　(1)—It’s a nice day, isn’t it?
　　—Yes, it is.
　　(2)Let’s go and have a look, shall we?
　　(3)—There are still many old city walls in Beijing, aren’t there?
　　—No, there aren’t.
　　(4)You know a lot about them, don’t you?
　　3. Talt cultural relics:
　　(1)These are old city walls. They are more than 700 years old.
　　(2)There used to be lots of old city walls in Beijing.
　　(3)Most old city walls were pulled down in the 1960s.
　　(4)The government is trying to protect and rebuild the old city walls.
　　Ⅱ. Teaching aids 教具
　　录音机/幻灯机或多媒体/小黑板
　　Ⅲ. Five-finger Teaching Plan 五指教学方案
　　Step 1  Review 第一步  复习(时间:7分钟)
　　1. (通过师生对话导入新课。)
　　T: Hi, S1. Do you like travelling?
　　S1: Yes, I like it very much.
　　T: Where have you been?
　　S1: Mount Tai. (学生说什么地方都可以。)
　　T: Would you like to travel to Beijing?
　　S1: Yes, I’d love to.
　　T: Why would you like to travel to Beijing?
　　S1: Because there are many places of interest in Beijing.
　　T: Could you say some places of interest in Beijing?
　　S1: Yes, the Great wall, the Summer Palace…
　　(让学生尽可能多说，其他学生也可补充。学生说的同时，教师用多媒体课件出示对应的图片，以启发学生们的兴趣。)
　　2. (教师用多媒体或图片展示北京的古城墙，其中有些古城墙已经破烂不堪。引出生词及反意疑问句。)
　　T: Look, what are these?
　　Ss: They are old city walls.
　　T: They are very beautiful, aren’t they?
　　(板书并解释。)
　　They are very beautiful, aren’t they?
　　Ss: Yes, they are. (帮助学生回答，并注意反意疑问句的答语。)
　　T: Right, but only a few of them remain now, because some of them are worn out, some of  them were pulled down.
　　(板书)
　　worn out, remain, pull down
　　T: Class, do you want to know more about the old city walls? Now let’s listen to the conversation between Kangkang and Michael.(导入1a。)
　　Step 2  Presentation 第二步  呈现(时间:8分钟)
　　1. (设置简单的听力任务，听1a录音，感知对话的内容。)
　　T: Now let’s listen to 1a and find out the answers to the questions.
　　(1) Where did Kangkang and Michael go to see some old city walls?
　　(2) How many years are the old city walls?
　　(核对答案。)
　　2. (再听1a录音，回答下列问题。进一步感知对话内容，掌握反意疑问句。)