(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 old days. T: (手举MP3。) When was it developed? And what’s it used for? Let’s 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. It’s used for helping us to improve our English. It’s 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, develop around 1998, Korea, more useful, recorder, buy 4. (指导学生利用黑板上的关键词复述2a对话，巩固一般过去时被动语态的句型。完成2a。) T: Who would like to retell 2a? S2, please!
S2: Kangkang is listening to MP3. It’s very nice. It’s used for helping us to improve our English. It was developed in Korea around 1998. It’s more useful than a recorder. T: Very good!
5. (指导学生完成2b。师生互动，提高学生口语表达能力。) Example:
T: How do you say it in English? Ss: Digital camera. (帮助学生回答。) (板书digital，要求学生理解。) digital T: When was it developed? Ss: It was developed in 1975. T: Where was it developed?
Ss: It was developed in America. T: What’s it used for?
Ss: It’s used for taking photos.
T: Do you understand? Practice the dialogs with your partner. Let’s begin. …
Step 5 Project 第五步 综合探究活动(时间:5分钟)
利用各种发明的图片操练一般过去时的被动语态，让学生在探究中锻炼语言综合运用能力。
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1. (收集各种发明的图片，如传真机、汽车、火车等等，学生可以在谈论自己感兴趣的发明中不断地使用was developed in / be made of / be used for这些目标语言。) 2. Homework:
T: Please write down a short passage about your favorite invention in your exercise books. 板书设计： When was it invented? Section A — When was it developed? — It was developed … — Where was it developed? — It was developed in … be made of be made from be used for Section B
The main activities are 1a and 3a. 本课重点活动是1a和3a。 Ⅰ. Teaching aims and demands 教学目标 1. Learn some new words: clone, experiment
2. Go on learning the simple past passive voice: (1) Do you know when it was invented? (2) It was invented in 1879.
3. Learn some information about the clone technology. (1) Cloning is famous throughout the world.
(2) There is DNA in most living things, including human beings. (3) No doubt cloning can help save those animals in danger. (4) And it can also benefit human beings. Ⅱ. Teaching aids 教具
录音机/多媒体课件/图片
Ⅲ. Five-finger Teaching Plan 五指教学方案
Step 1 Review 第一步 复习(时间:6分钟)
做游戏，复习一般过去时被动语态的用法，导入新课。
1. (用上节课的作业做一个链式游戏，以小组为单位，就计算机、MP3、CD、手机、数码相机或学习用具等进行对话，操练be made of / be made in / be made from / be used for的
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用法。让每一小组的第一个同学回过头去问下一位同学，依次接着往下问。) T: Boys and girls. Let’s play a game. Ask questions one by one. S1: What’s your favorite invention? S2: An MP3. What’s it made of?
S3: It’s made of steel and plastic. When was it developed? S4: It was developed around 1998. What’s it used for? S5: It’s used for helping us to improve our English. …
2. (用多媒体出示图片，导入新课。) T: You did very well. There are many important technologies and inventions in the world today. Look at this invention. (展示灯泡图片。)It’s a bulb. Do you know about it? (板书并要求学生了解。) bulb Ss: Yes, a little.
T: OK, who invented it? Ss: Thomas Edison.
T: When was the light bulb invented? Do you know? Ss: No.
T: OK, let’s come to 1a and learn about it.
Step 2 Presentation 第二步 呈现(时间:17分钟)
通过谈论各种发明及其发明者和发明的时间，呈现1a和3a的内容，继续学习一般过去时的被动语态及生词。
1. (让学生听1a录音并根据听力内容判断正误。)
T: In this lesson, we will learn something about other inventions and technologies, please listen to 1a and mark True (T) or False (F). (1) The light bulb was invented in 1879. ( ) (2) The radio was invented by Thomas Edison in 1895. ( ) (3) The airplane was invented by Wilbur and Orville Wright in 1903. ( ) (听后核对答案：(1) T (2) F (3) T。) 2. (用图片继续谈论上述发明，引入3a。)
T: Now let’s go on talking about the inventions. Look at the picture! (出示收音机的图片。) Who invented it?
T: It was invented by Guglielmo Marconi. (呈现收音机的发明年份和发明者的名字。) T: And when was it invented? Ss: It was invented in 1895.
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T: Very good. And look at this picture. (展示一幅飞机的图片。) Who invented it? (同时呈现飞机发明年份和发明者的名字。)
Ss: It was invented by Wilbur and Orville Wright. T: And when was it invented? Ss: It was invented in 1903.
T: We have talked about so many inventions. Now we are going to learn something new about a great technology. (拿出图片。) Now look at this picture. What animal is it? Ss: It’s a sheep.
T: Yes, it is a sheep, and it is a cloned sheep. Have you ever heard of clone? (教师释义并领读clone，要求学生掌握。) clone Ss: Yes, of course.
T: That’s very good. Cloning is a famous experiment throughout the world. So far, scientists have cloned many animals to save those animals in danger. The cloning technology has been used in human organs. It can benefit human beings. (板书并让学生掌握生词experiment；了解benefit和organ。) experiment, organ, benefit T: Then what’s the name of the first cloned sheep? Ss: Dolly.
T: Yes, now let’s read 3a and answer the following questions.
3. (指导学生阅读3a，回答下列问题并核对答案，为完成3b作铺垫。同时画出文中的关键词及短语，为下一环节的课文复述作准备。) (板书下列问题。) (1) When and where was the cloned sheep created? (2) What other things has man cloned? (3) What’s used in cloning? (4) What are advantages and disadvantages of cloning? (板书关键词及短语。要求学生理解AIDS。) Dolly, be created, famous throughout the world, DNA, in every part of your body, be similar to, save, benefit human beings, explore more ways to, heart disease, AIDS and cancer, however 4. (让学生听3a并跟读，画出重点词组，教师板书。)
T: Please listen to 3a and read after it. Find out the important phrases. (板书，要求学生掌握。) so far, be similar to, the same as, no doubt (学生听完录音后，与教师板书的内容对照，并朗读3a课文，教师讲解本课重要词组。)
Step 3 Consolidation 第三步 巩固(时间:9分钟)
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通过角色表演、复述等形式巩固1a和3a内容及一般过去时的被动语态。 1. (两人一组分角色表演1a。) T: Please act out 1a in roles. 2. (再读1a，完成1b。)
3. (让学生再读3a并讨论3b中的问题，完成3b。)
4. (指导学生用刚才自己所画的3a中的关键词，以接龙的方式复述3a。)
T: Just now, we’ve learned something about cloning. Can you say something about it? S1: Dolly, a cloned sheep. T: Yeah. It’s well-known.
S2: Cloning is known as a great experiment all over the world. T: Good!
S3:Dolly was created in Scotland more than ten years ago.
S4: So far, scientists have cloned rabbits, sheep, cows, mice, pigs and some other animals. …
T: Excellent! Now, repeat what you have said just now one by one, and you will get the whole paragraph.
(让刚才抢答问题的学生重复一遍自己所说的那些话，教师不再提示关键词，让学生按同样的方式继续进行接龙。为激发学生的兴趣，可分组竞赛，看哪组复述的句子又快，又多，又准确。)
Step 4 Practice 第四步 练习(时间:8分钟)
设置情景，继续操练一般过去时的被动语态，完成2和4。
1. (利用1a中有关发明的图片，让学生用一般过去时的被动语态讲述三项发明的情况。) T: Now, look at the pictures and try to say something about the inventions we have learned just now. (教师逐一呈现图片。)
S1: The light bulb was invented by Thomas Edison in 1879. S2: The radio was invented by Guglielmo Marconi in 1895.
S3: The airplane was invented by Wilbur and Orville Wright in 1903. 2. (让学生先看2的内容，然后播放录音。)
T: Boys and girls, do you want to know something about other inventions? Let’s listen to the
tape carefully and complete 2 on Page 87.
(听后检查部分学生答案，视情况需要，可再播放一遍录音。然后就听力内容提问。) T: Who was the car invented by? Ss: Karl Benz.
T: When was it invented? Ss: In …
T: What about the telephone?
Ss: It was invented by Alexander Graham Bell in …
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