九年级仁爱英语Unit4 Topic2.doc

九年级Unit4Topic 2 When was it invented? Section A 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 new words: metal, toothbrush, ink, recorder 2. Learn some useful sentences: —What’s it made of/from? —It’s made of/from… 梂hate’s it used for? 桰t?’s used for … 3. Learn the simple past passive voice: (1)梂hen was it developed? 桝round 1998. (2)梂here was it developed? 桰t was developed in Korea. 4. Learn how to express hopes and wishes: (1) I wish I could go into space some day. (2) I hope your dream will come true. 5. Talk about new technologies and inventions. Ⅱ. Teaching aids 教具 火箭模型/牙刷/墨水/纸/录音机/小黑板/MP3/各种发明的图片/魔盒 Ⅲ. Five-finger Teaching Plan 五指教学方案 Step 1 Review 第一步 复习(时间:6分钟) 师生对话，让学生尽量用被动语态叙述计算机的作用，引出生词rocket并导入新课。 T: Boys and girls, we’ve learned about the importance of computers. Can you tell me something about them in passive voice? S1: Computers are used by doctors to find diseases easily. S2: Robots are controlled by computers to do dangerous work. S3: In business, computers are used to place and cancel orders. S4: Spaceships are mainly controlled by computers. T: Well done! But do you know how the spaceships are sent up from the ground into space? S4: They are sent up by rockets. (帮助学生回答。) (出示火箭模型的图片，板书并帮助学生理解rocket。) rocket T: Look! This is a model rocket. What’s it made of? What’s it used for? Let’s come to 1a and talk about it. Step 2 Presentation 第二步 呈现(时间:13分钟) 用具体实物设置情景，师生对话，学习生词和新句型。找出关键词句和目标语言，为交际积累材料。 1. (师生对话，用实物引出生词，学习新句型。) T: (让学生摸一摸火箭模型) What’s it made of? S1: It’s made of “金属”. T: Yes, it’s made of metal. (板书句型及生词，并让学生掌握。) metal What’s it made of? It’s made of metal. T: Do you know what a rocket is used for? Ss: It’s used for sending spaceships into space. T: Yes, it’s used for sending spaceships or satellites into space. (板书句型并要求学生掌握，帮助学生理解satellite。) satellite What is a rocket used for? It’s used for sending satellites or spaceships into space. (摸出牙刷。) T: How do you say this in Engli