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1、Topic 2 When was it invented?Section AThe main activities are 1a and 2a. 本课重点活动是 1a 和 2a。 . Teaching aims and demands 教学目标教学目标 1. Learn some new words: metal, toothbrush, ink, recorder 2. Learn some useful sentences:Whats it made of/from? Its made of/from Whats it used for? Its used for 3. Learn the
2、 simple past passive voice:(1)When was it developed? Around 1998. (2)Where was it developed? It 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. . Teaching
3、 aids 教具教具 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 . Five-finger Teaching Plan 五指教学方案五指教学方案Step 1 Review 第一步第一步 复习复习(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, weve learned about the importance of computers. Can you tell me something about them in passive voice? S1:Computers a
4、re 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 s
5、pace? S4:They are sent up by rockets. (帮助学生回答。) (出示火箭模型，板书并帮助学生理解 rocket。) rocket T: Look! This is a model rocket. Whats it made of? Whats it used for? Lets come to 1a and talk about it.Step 2 Presentation 第二步第二步 呈现呈现(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:(
6、让学生摸一摸火箭模型) Whats it made of?S1:Its made of “金属”. T:Yes, its made of metal. (板书句型及生词，并让学生掌握。) metal Whats it made of? Its made of metal. T:Do you know what a rocket is used for? Ss:Its used for sending spaceships into space. T:Yes, its used for sending spaceships or satellites into space. (板书句型并要求学生
7、掌握，帮助学生理解 satellite。) satellite What is a rocket used for? Its used for sending satellites or spaceships into space. (摸出牙刷。) T: How do you say this in English, S2? S2: Sorry, I dont know. T: OK, it is a toothbrush. (板书 toothbrush，领读并要求学生掌握该单词及复数形式。)toothbrush toothbrushes T: (手拿牙刷问)Whats it used for
8、? S2: Its used for brushing teeth. T: Whats it made of, S2? S2: Its made of plastic. T: Very good! Youre right. (摸出一瓶墨水。) Whats this in English, S3? S3: Sorry, I dont know. T: Its a bottle of ink. (板书，领读并要求学生掌握。)ink T:Do you know what it is used for? S3: Its used for writing. (从魔盒中摸出一张纸，做神秘状。) T:How
9、 do you say this in English, S4? S4: Its a piece of paper. T:Can you tell me what it is made from? (让其摸一摸，看一看。) S4: Sorry, I cant. T:Let me tell you. It is made from wood. (说的时候语速要慢，重音放在 from。) (引导学生总结 be made of 与 be made from 的区别。板书并解释。)be made of + 材料：表示原材料容易被看出。be made from + 材料：表示原材料经过化学变化，不易被看
10、出。2. (让学生不要打开课本，听 1a，回答下列问题，听后核对答案。) T: Dont open your books. Listen to the tape carefully and try to find out the answers to the questions. (出示小黑板。)(1)Why is Jane unhappy? (2)Who made the model rocket? (3)What is a rocket used for?(核对答案。) 3. (让学生打开课本，找出疑难句。教师出示小黑板。)Im not allowed to play computer g
11、ames. Its made of metal. Its used for sendinginto I wish I could go into space some day. (解释此句使用了虚拟语气，在此只要求了解。) I hope your dream will come true.Step 3 Consolidation 第三步第三步 巩固巩固(时间:8 分钟)巩固 1a 及 be made of/from, be used for 的用法。完成 1b。 1. (让学生打开课本，再听 1a 录音，学生跟读，感受纯正的语音语调。)T: Open the books, listen to
12、the tape and read after it. Pay attention to the pronunciation and intonation. 2. (让学生找出对话中的关键词，教师板书。然后让学生根据关键词两人对话复述 1a。) T: Boys and girls, lets find out the key words together, OK? (板书)Janeunhappy / be not allowed to / be bad for Kangkanga model rocket / be made of metal be used for / satellites
13、or spaceships / learn from/ wish/ hope/ come true3. (让学生认真阅读 1b 中的例子，然后让他们仿照例子用实物编对话，完成 1b。) T: In 1b, we can see two dialogs. Read them carefully and pay attention to the sentence patterns, “be made of”, “be made from” and “be used for”. Make similar conversations in pairs.Step 4 Practice 第四步第四步 练习
14、练习(时间:13 分钟)由一般现在时的被动语态，引出一般过去时的被动语态并加以操练。引出 2a 的内容，展开 任务型活动，让学生掌握目标语言。完成 2b。 1. (继续操练 be made of/from 及 be used for 的用法。) T:(老师手指录音机问。) Boys and girls, whats this in English? Ss: We dont know. T:Its a recorder. (板书生词并让学生掌握。) recorder T:Whats it used for? Ss: Its used for helping us to improve our E
15、nglish. (引导学生回答。) T:Yes, what is this? (从魔盒里拿出 MP3。)Ss: Its an MP3 player. T:Yes, it was developed in Korea. Its more useful than a recorder. (板书画线句子让学生观察，并与一般现在时的被动语态相比较，帮助学生总结出一般过 去时被动语态的构成并举例作适当讲解。) was/were+及物动词的过去分词 It was developed in Korea. The bridge was built in 1990. The cup was used in ol
16、d days. T:(手拿 MP3 问。) When was it developed? And whats it used for? Lets listen to 2a. 2. (放录音，听后核对答案。) T:S1, answer the questions, please! S1:The MP3 player was developed around 1998. Its used for helping us to improve our English. Its more useful than a recorder. 3. (让学生阅读 2a 对话，找出关键词，为下一步活动做准备。)T: Read 2a, and underline the key words. (板书关键词。) an MP3 player, be used for, help us to improve our English,
