(3) Can we work on computers too long? Why? (学生能回答一些问题，但不一定全面，教师建议学生带着这些问题，阅读1a。提高学生的阅读能力。)
T: Please read the passage and try to find out the answers to the questions. (学生阅读后，可与同伴讨论并给出答案。)
(让学生再读1a并找出文中的疑难点，鼓励学生讨论解决，教师作补充讲解。板书并要求学生掌握。) There is no doubt that... …keep their hearts beating… for instance = for example 3. (让学生齐读1a，注意一些短语和句式，完成1a课后阅读的问题和1b。)
T: Read 1a together and pay attention to the expressions. Finish post-reading task and 1b. (核对答案。)
Step 3 Consolidation 第三步 巩固(时间:10分钟)
巩固1a，结合1a及自己的看法，分组讨论，列举电脑的优缺点，完成1c。 1. (要求学生根据1a内容完成小黑板上的表格。)
T: Finish the table according to 1a, then I’ll ask some students to fill it out. Place In space In hospital In business In factory At home The use of computer (核对答案。) 2. (师生互动，练习1a，巩固目标语言。)
T: Boys and girls, we know that computers are playing an important role in our daily life. We know that they can also bring lots of problems. Look at the pictures and tell me what the problems are. (用投影仪出示几组图片。)
(1) (2) (3)
(提问几个学生。)
S1: Playing on the computer too long isn’t a good habit.
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S2: Playing on the net too long is bad for your eyes. S3: Going to bed too late is bad for health.
3. (学生分组讨论电脑的优、缺点，可以根据1a添加自己的观点，完成1c。)
T: OK. We know computers help people a lot almost in every field, but it is not good for us to work on the computer too long. Please discuss in groups, and list the advantages and disadvantages of computers. You can add your own opinions. And then finish 1c. (检查学生完成情况。)
Step 4 Practice 第四步 练习(时间:10分钟)
通过对1a部分句型的归纳总结，继续巩固宾语补足语，完成2。 1. (要求学生再次阅读1a, 找出含有宾语补足语的句子，并把它画出来，教师板书并适当讲解。) T: Read 1a again, and underline the sentences with object complement. (1) Tiny computers inside patients’ bodies can keep their hearts beating normally. (2) They are making the workplace safer and better. (3) The Internet is making the world smaller, like a village. 2. (教师进一步帮助学生归纳宾语补足语，举例说明可作宾补的词或短语。)
T: Boys and girls, look at the blackboard to see what kinds of words or phrases can be object complement.
(教师用投影仪展示句子，积极引导学生了解哪些词可作宾补，教师作适当补充。) (1) We made her monitor. (名词) (2) He doesn’t believe the story true. (形容词) (3) The doctor advised her to stay in bed. (不定式) (4) They saw her walking into the bookstore. (分词短语) (5) You should put your books in order. (介词短语) 3. (让学生独立完成2。) T: Boys and girls, we have learned something about object complement. Do you all understand? Ss: Yes.
T: OK, finish 2 by yourselves. (两分钟后，教师核对答案。)
Step 5 Project 第五步 综合探究活动(时间:8分钟)
结合以上内容，小组讨论健康上网的方式，完成有关内容的应用文写作及家庭作业。 1. (分组讨论如何给网吧写一个上网注意事项，提醒常去网吧的人注意上网卫生，养成健康的上网习惯。)
(教师用投影仪展示格式，给予提示。) Welcome to … Net Bar. Tips: (1) Have a rest every two hours when you are on the net. ` ·12·
(2) (3) (4) T: Boys and girls, work in groups and try to write some tips for people who like to spend time in the net bar.
2. Homework:
Write a passage about the advantages and disadvantages of the computer according to 1c. 板书设计： Spaceships are mainly controlled by computers. Section C There is no doubt that computers are very useful in technology and business. Tiny computers inside patients’ bodies can keep their beating normally. At the same time, they are making the workplace safer and better. The Internet is making the world smaller, like a village. Mr. Lee told us not to spend too much time playing games. no doubt for instance hearts Section D
The main activities are 1a and 3. 本课重点活动是1a和3。 Ⅰ. Teaching aims and demands 教学目标 1. Learn new words and phrases:
turn on, connect to, screen, click on, reply, search 2. Summarize the grammar: verb+object+complement 3. Review the uses of computers.
4. Learn how to send and receive an e-mail. Ⅱ. Teaching aids 教具
打印的电子邮件页面图片/中英文按钮卡/录音机/小黑板 Ⅲ. Five-finger Teaching Plan 五指教学方案
Step 1 Review 第一步 复习(时间:5分钟)
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引导学生用自己的话表述电脑的用途，复习Section C。
T: Boys and girls, we have learned something about computers last period. Please say something about the computers’ uses.
S1: Computers have become very important in many areas of work and leisure. S2: Computers are widely used by people in business and technology. S3: Computers control the speed and direction of a spaceship’s flight. T: Very good. Any more?
S4: With the help of computers, doctors can find diseases easily and solve other problems. S5: …
T: Nice work. In this lesson, let’s go on talking about computers.
Step 2 Presentation 第二步 呈现(时间:15分钟)
继续谈论有关电脑的话题，导入新课内容，教学生词，呈现1a。 1. (师生互动，激发学生兴趣，导入新课。)
T: Boys and girls, we have talked something about computers just now. Do you like playing computers in your spare time? Ss: Of course.
T: What do you usually do on line? Can you tell me? S1: Play computer games.
S2: Search for some information or read news. S3: Make friends.
T: Good. Computers are playing an important role in our daily life. We all know that computers help people do a lot of things in many areas. For example, you can communicate with your friends by sending e-mails. Do you know how to send and receive e-mails by computer? Ss: Yes./No.
T: OK, let’s learn how to send and receive e-mails.
2. (出示打印的电子邮件页面图片，有网络的学校可以用联机的电脑直接演示。)
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T: Boys and girls, look at this picture/ computer. I’ll show you how to send an e-mail.
(教师边用图片或网络操作，边用英文慢速讲解两遍，让学生借助图标上的中文，学习发送电子邮件的步骤。)
T: Of course, we should turn on our computers and connect to the Internet. Then open the e-mail program. You can see a picture of an envelope. Click on that, and a box will appear on your screen. OK, let’s know the buttons. First, this button写信 means writing a letter. Click here, another box will appear and then click on 收件人 . It means the receiver’s e-mail address. The third step is to click on 主题, which means subject. Type the title of your e-mail. The fourth step is to write your e-mail in this big and empty box on your screen. The last step is to click on 发送 , which means sending. Now, do you understand? Can anybody send an e-mail now? Once again …S4, please! Think it over and try it, please. S4: OK, let me have a try.
(让学生演示一遍，确保学生掌握发邮件的具体步骤。教师板书生词并要求学生理解envelope，掌握turn on, connect to, click on, screen。) turn on connect to envelope click on screen 3. (熟悉中英文按钮。)
(调出课件画面，或换空白板用磁条贴上中文按钮卡，然后再出示英文按钮卡。) T: Boys and girls, let’s play a game. When I touch the button in Chinese, you must say it in English. If I touch the button in English, you should read it out quickly. OK? Ss: OK.
(此环节也可找个别同学去操作。)
4. (听1a录音并复述发送电子邮件的过程。)
T: Listen to the tape carefully and try to retell how to send an e-mail. 5. (小组讨论如何收e-mail。)
T: We have known how to send an e-mail. Let me show you how to receive an e-mail. It’s very easy. If you have a new e-mail message, click on “Inbox” and click on the one you want to read. After you finish reading it, you can check on “Reply” to answer the message. (板书，要求学生了解inbox；掌握reply。)
inbox, reply Step 3 Consolidation 第三步 巩固(时间:10分钟)
巩固1a，要求学生用英语表达如何收发电子邮件，鼓励学生学以致用，完成1b。 1. (双人活动，自读1a，并尝试用英文叙述收发电子邮件的步骤。)
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