1、Unit 4 When was it invented?Period 1 听力课. Teaching aims and demands 教学目标1. Learn some new words:metal, toothbrush, ink, recorder2. Learn some useful sentences:3. Learn the simple past passive voice:4. Learn how to express hopes and wishes:5. Talk about new technology and inventions.Step 1 Review 师生对
2、话，让学生尽量用被动语态叙述计算机的作用，引出生词 rocketT: Boys and girls, weve learned about the importance of computers. Can you tell me something about them?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 a
3、nd 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 the space?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。)T: Look! This is a model rocket. Whats it made of? Whats it used for? Let
4、s come to1aand talk about it.Step 2 Presentation 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) 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。)T: Do you know what a rocket is used for?Ss: Its used for sending spaceships into spac
5、e.T: Yes, its 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。)(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。)T: (作刷牙的动作。) Its used for brushing teeth. Whats it made of, S2?S2: Its made of pla
6、stic.T: Very good! Youre right.(摸出墨水。) 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。)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 do you say this in English, S4?S4: Its a piece of paper.T: Can you tell me its material? (
7、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。 )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.(核对答案。)3. (让学生打开课本，找出疑难句。
8、教师出示小黑板。)Step 3 Consolidation 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 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 th
9、e key words together, OK?3. (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 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
10、 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。)T: Whats it used for?Ss: Its used for helping us to improve our English. (引导学生回答。)T: Yes, what is this? (从魔盒里拿出 MP3。)Ss: Its a
11、n 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。)T: (手举 MP3。) When was it developed? And whats it used for? Lets listen to2a.2. (放录音，听后核对答案。)T: S1, answer the questions, please!S1: The MP3 player was developed a
12、round 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: Read2a, and underline the key words.(板书关键词。)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. Its
13、 very nice. Its used for helping us to improve our English. It was developed inKorea around 1998. Its 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。)T: When was it developed?Ss: It was d
14、eveloped in 1975.T: Where was it developed?Ss: It was developed inAmerica.T: Whats it used for?Ss: Its used for taking photos.T: Do you understand? Practice the dialogs with your partner. Lets begin.Step 5 Project 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。2. Homework:Period 2 读写课. Teaching aims and de
15、mands 教学目标1. Learn some new words:clone, experiment2. 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） Practise reading an article（2） Practise writing something using the target lang
16、uageStep 1 Review 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. Lets play a game. Ask questions one by one.S1: Whats your favorite invention?S2: An MP3. Wh
17、ats it made of?S3: Its made of steel and plastic. When was it developed?S4: It was developed around 1998. Whats it used for?S5: Its 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 thi
18、s invention. (展示灯泡图片。)Its a bulb . Do you know about it?(板书并要求学生了解。)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, lets come to1aand learn about it.Step 2 Presentation 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。T: In
19、 this lesson, we will learn something about other inventions and technologies, please listen to1aand 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. ( )(
20、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 lets 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.T: Very good. And look at this picture
21、. (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
22、. What animal is it?Ss: Its 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。)Ss: Yes, of course.T: Thats very good. Cloning is a famous experiment throughout the world. So far, scientists have cloned many animals to save those animals in da
23、nger. 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。)T: Then whats the name of the first cloned sheep?Ss: Dolly.T: Yes, now lets read3aand 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
24、下一环节的课文复述作准备。)(板书下列问题。)(板书关键词及短语。要求学生理解 AIDS。)4. (让学生听 3a 并跟读，画出重点词组，教师板书。)T: Please listen to3aand read after it. Find out the important phrases.(板书，要求学生掌握。)(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 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 out1ain ro
25、les.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, weve learned something about cloning. Can you say something about it?S1: Dolly, a cloned sheep.T: Yeah. Its well-known.S2: Cloning is known as a great experiment all over the world.T: Good!S3:Do
26、lly was created inScotland 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
27、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 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
28、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? Lets 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
29、提问。)(让学生分成三组分别讨论这三项发明，并用自己的话复述 2 中的部分内容，完成 2。)T: Now, please talk about the inventions in your own words. Group 1, please tell us something about the car.G1: The car T: Now, Group 2, would you like to talk about the telephone or the television?G2: Wed like to talk about T: Group 3. Its your turn to
30、talk about .3. (用多媒体展示一些图片，并要求学生用过去时的被动语态造句。巩固本课的语言点。完成 4。)T: Make up sentences according to the example and practice more.Example:(展示电脑图片并板书生词 laptop，要求学生了解。)S4: Where were laptops invented?S5: They were invented inJapan.S4: When were laptops invented?S5: They were invented in 1985.(展示神舟七号发射图。)Ss:
31、Shenzhou was launched into space in China in 2008.Period 3 交际课The main activity is1a. 本课重点活动是 1a。. Teaching aims and demands 教学目标1. Learn some new words and phrases:servant, for certain, housework, make a contribution to2. Learn some useful sentences:(1) No one knows for certain, but most people thi
32、nk that robots will be part of our lives.(2) In short, this robot is very useful to us.3. Discuss the advantages and disadvantages of robots.Step 1 Review 检查作业，然后以师生互动形式，复习一般过去时的被动语态。培养学生热爱科学的精神。1. (检查上节课的作业，让学生汇报自己的发明成果。)T: Now Ill check up the homework of Section B and choose some students to repo
33、rt their results.2. (出示幻灯片，让学生根据幻灯片上的图表，用过去时的被动语态做对话练习。)Invention Inventor Yearcar Karl Benz 1885radioGuglielmo Marconi1895light bulb Thomas Edison 1879T: Boys and girls, we have learned many inventions during the last period. Look at the table and make dialogs like this:A: When was the car invented
34、?B: It was invented in 1885.A: Who was the car invented by?B: It was invented by Karl Benz.T: OK! Ill ask two students to ask and answer questions about the radio.S1: When was the radio invented?S2: It was invented in 1895.S1: Who was the radio invented by?S2: It was invented by Guglielmo Marconi.(再
35、找两组学生做类似对话。)T: Well done. You learned a lot. Now, lets talk about more inventions.Step 2 Presentation 以师生互动等形式，呈现本课新知识。通过让学生听录音并找出关键词，培养学生的听力及阅读理解能力。1. (师生互动，导入新课。)T: We have learned many inventions such as computers, digital cameras, TV sets and light bulbs. Which invention do you like best? Can yo
36、u tell me?S1: Computers.S2: Cars.S3: T: Why do you like computers best, S1?S1: Because I can learn a lot on the computers. Playing computer games is very exciting.T: But you shouldnt spend too much time on them. It is bad for your study. Which invention would you like to own, S3?S3: Id like to own a
37、 cellphone. It can help me communicate easily.T: Very good. Anyone else?S4: Id like to own a car. Its very convenient.S5: Which invention would you like to own, Mr. / Miss ?T: I feel very tired after work and I dont feel like doing any housework at that time. So Id like to own a robot. Do you know r
38、obots?(教师板书，并要求学生掌握。)Ss: Yes. But why?T: Id like a robot to help me do a lot of housework. It can cook for me. It can clean the house for me. In cold winter, it can wash clothes for me. Its dangerous for me to clean the outside of the windows. OK, let the robot do it. Ha! It behaves just like a serv
39、ant.(板书，要求学生理解 behave；掌握 servant。)T: With the robots help, doctors can examine the insides of their patients bodies. It has made a contribution to humans health.(板书并要求学生理解 contribution；掌握词组 make a contribution to。)Ss: Thats very interesting.T: Yes. Study hard, and maybe you can invent something usef
40、ul one day.(教师展示机器人图片。)T: Look! This is a robot. I treat it as my servant. Will it be friendly or unfriendly? No one knows for certain.(板书，并要求学生掌握。)T: With the development of technology, maybe robots will think and act for themselves. They will no longer want to be our servants, but our masters. Do
41、you think it is very dangerous? Maybe there will be a war between robots and human beings.2. (播放 1a 录音，让学生在文中画出关键词和短语。)T: Boys and girls, weve learned something about robots. And today well learn a passage about robots. First listen to the tape carefully and find out the key words and expressions.(板
42、书关键词和短语。)no one, most people, our lives, robots, caused, work for us, help, dangerous and difficult work, people, surprised, think and act, one scientist, warns, want to be our servants, treat, war, human beingsStep 3 Consolidation 让学生讨论 1c 中的问题，探讨机器人将给人类带来的利和弊，培养学生的科学探究精神。让学生根据关键词复述 1a，培养学生综合运用语言的能
43、力。1. (让学生再读 1a, 分小组讨论 1c 中的问题。)T: Read the passage by yourselves and discuss the questions in1cin groups.(把整个班级分成四个小组，每个小组选择并讨论其中一个问题。教师提问检查讨论结果。)2. (学生两人一组，利用黑板上的关键词，复述课文。教师请几名学生向全班复述。)T: After the discussion, you can try to retell the text in1aaccording to the key words on the blackboard. Ill ask
44、some of you to retell it in the front. Try, please!3. (出示幻灯片，让学生完成下面对机器人的介绍，进一步巩固对文中出现的关键词和短语的掌握。)T: Please fill in the blanks according to1a.So far, robots havent us any problems. They work for us like all the time. They help us do and work. People are at the development of robots. In a few years,
45、perhaps robots will think and for themselves. However, robots can think for themselves, problems may . Perhaps there will be a between human beings and robots.T: Read1aagain. Check the answers.Step 4 Practice 通过单词释义、听力训练等活动帮助学生更好地掌握本课所学的内容。1. (教师简单介绍解题方法，学生完成 1b，师生一起核对答案。)T: OK. Please find out and
46、circle the words in1aaccording to the meanings in 1b. Then writethem down. You can work in pairs if necessary. Then well check the answers together.2. (播放 2 录音，让学生完成 2。)T: Lets listen to the tape, and finish 2 by yourselves. Well listen to the passage twice.(听完后，核对答案。)答案：1. greatly 2. medical 3. hea
47、lth4. inside 5. discovering 6. effects(为了使学生加深对所听内容的理解，可以创设一些问题让学生回答。)Example:T: What is the X-ray machine used for?Ss: It is used for examining the inside of patients bodies.T: Why should it be used properly?Ss: Because it has some bad effects on our health.Step 5 Project 学生通过小组合作，设计一个机器人，并写一篇有关该机器
48、人的文章。1. (学生四人一组，设计一个机器人。并讨论 3 中的五个问题，然后写一篇短文。)T: Boys and girls, work in groups of four. Design a robot. Then discuss the questions in 3 together. These questions will help you write the passage.2. (教师提问一些学生做口头描述，对写短文可能遇到的问题进行提示，完成 3。)T: Now, I will ask some of you to make a report. After that, writ
49、e it down in your exercise books.3. Homework:Think it over and make a similar card for your robot.Period 4 阅读课1 知识目标能认读以下词汇active, indoors, create, wooden, knock, divide, basket, metal, towards, develop, rise, risen, worldwide找出并理解文章中出现的被动语态的句子。2 能力目标能运用 Mind-mapping 复述篮球的历史、篮球的器械、篮球的规则、篮球的流行趋势等。3 情感目标激发学生对运动的热爱，并让学生树立 teamwork 的意识Learning and teaching arrangement: Step 1 Lead-in【百度百科】南
