课件28张PPT。Unit 3 Online toursWelcome to the unitscreen n. 屏幕，显示器Let's learn some new words.keyboard n. 键盘mouse n. (pl. mice或mouses) 鼠标main unit
n. (电脑)主机programme
n. 节目; 计划，
方案channel n. 频道remote control
n. 遥控器screen
keyboard
unit
main unit
mouse
programme
channel
remote control 屏幕，显示器键盘机件; 单位主机鼠标节目频道遥控器Let's read!What do you usually do when you are free?Free talkAnnie, Simon’s cousin, wants to learn about the different parts of a computer. Look at the picture below and help her write the correct answers in the boxes. Learning about computerskeyboard main unit mouse screenmain unit
主机mouse
鼠标screen 屏幕keyboard 键盘a computerWhat else can we do with a computer?Learn more about computersword processing 文字处理send and receive emails
收发电子邮件watch programmes or videos
观看节目search for information 搜寻信息 chat with friends 和朋友聊天play games 玩游戏Listen and answer.What does Simon usually use his computer for? Why?He usually uses it to search for information. Because it’s fast and easy.Simon and Daniel are talking about the different uses of computers. Work in pairs and ask each other what you use a computer for. The ideas in the box may help you. Use the conversation below as a model.chat with friends do word processing
play games search for information
sending and receive emails watch videosLet's practice!A: What do you usually use your
computer for?
B: I usually use it to...
A: Why?
B: Because ...
A: How often do you use your computer
for this?
B: ...Let's think!Do Eddie and Hobo know well about computers?What do Eddie and Hobo think the computer look like?
Do you know what “the remote control” really is?Listen and answer the questions.They think it looks like a TV.It is a mouse.Read the dialogue and
act it out!Homework1. Read the text book and learn the new
words and phrases by heart.
2. Do the exercises in the workbook.英语（八年级下册）
Unit 3 Online tours
Comic strip & Welcome to the unit
I. Teaching aims and learning objectives
By the end of the lesson, students should be able to:
1. master the important words, phrases and sentences;
2. learn to name the different parts of a computer;
3. learn to talk about the basic uses of computers;
4. know how to make good use of computers.
II. Teaching contents
1. New words and phrases: programme, keyboard, unit, main mouse, screen, receive, online, ah, channel, remote control, word processing, search for information, send and receive emails
2. New structures: It looks like a TV.
Let’s change the channel.
What do you usually use your computer for?
III. Focus of the lesson and predicted area of difficulty
1. To name different parts of a computer.
2. To talk about different uses of computers.
3. To know how to make good use of computers.
IV. Teaching procedures
Comic strip
Step 1 Lead-in
Free talk
T: Hello, boys and girls. As we all know, the spring break is coming. Do you want to travel to these places?
T: I want to travel to these places too. How can we travel there for free?
T: Yes, we can watch TV. Besides, we can also use computers to go travelling for free.
【设计意图：通过自由交谈，引导学生思考，导入今天课堂的主题：电脑。】
Step 2 Presentation
1. Watch and answer
T: Do Eddie and Hobo know well about computers? Let’s watch the flash and then try to answer the following questions:
(1) What do Eddie and Hobo think the computer looks like?
(2) What do they think the mouse is?
【设计意图：通过观看动画，让学生了解对话大意，知道对话主题。】
2. Read the conversation
T: Read the conversation after the tape. Pay attention to your pronunciation.
T: Work in pairs. One will play the role of Hobo and the other Eddie.
【设计意图：不同形式的朗读方式为学生提供了更多机会来练习自己的语音语调。】
3. Act it out
T: Now it’s your turn to act out the conversation.
4. Fill in the blanks
T: Look at the screen and fill in the blanks. And then we will check the answers together.
【设计意图：通过填空练习帮助学生加深对课文的理解，并巩固本部分所学内容。】
Welcome to the unit
Step 1 Presentation
1. Brainstorming
T: How much do you know about a computer? Write down the words you know about computers.
Show students some pictures about computers: email, games, blog, keyboard, click, Internet.
【设计意图：通过头脑风暴，帮助学生复习有关电脑的词汇，激发他们的求知欲。】
2. Learn different parts of computers
T: Most of you must have a computer, right? And I am sure you know the names of different parts of a computer. Do you know how to say these in English?
T: Now please open your books and turn to Page 35. Write the correct answers in the boxes in Part A.
3. Test your memory
T: Who has the best memory in our class? Let’s complete the sentences on the screen.
【设计意图：通过填空练习帮助学生巩固所学知识。】
Step 2 Practice
1. Listen and answer
T: Computers are very useful in our daily lives. Simon and Daniel are talking about the different uses of computers. Let’s listen to their conversation, and answer the question: What does Simon usually use computer for?
【设计意图：让学生带着问题听对话，帮助他们更好的了解对话内容，同时训练听力技能。】
2. Read the conversation together
3. Learn about different uses of computers
T: Simon uses the computer to search for information. What can you use a computer for? You can use the pictures and phrases on the screen to help you.
T: What else can you use a computer for? Work in groups and have a discussion from the following three aspects: for fun/for study/for life.
【设计意图：通过展示图片和语句结构帮助学生更好地开展讨论。鼓励学生说出电脑的更多用途，拓宽他们的思维。本环节的一系列活动可为接下来的教学步骤做铺垫。】
Step 3 Production
1. Make up new conversations
T: Let’s work in pairs and make up your new conversations. You can use the conversation on the screen as a model.
【设计意图：通过编创新对话，帮助学生在语境中练习所学内容，并掌握这些知识。】
2. Make a report
T: Work in groups of four and make a report about computers. You can divide your report into three parts:
Introduction to computers
Different parts of computers
Uses of computers
【设计意图：通过完成一份报道，让学生对电脑的相关知识有一个整体的把握。提供范文和有用的短语供学生参考，帮助他们顺利完成本项任务。】
Step 4 Summary
T: What have you learned today?
【设计意图：通过思维导图帮助学生复习本节课所学的知识点，并进行情感升华，让学生领悟到电脑的最大用途在于为生活提供服务。】
V. Homework
1. Search for information about the development (发展) of computers.
2. Preview Reading.
