八年级英语教学案   课题  8B Unit 3 Online travel
班级               姓名_________
【学习目标】
了解并谈论电脑的基本用途
【学习重点】
一、语言知识
1．四会内容：
词汇: online; television; program
词组: look like; turn on; search for information; send and receive e-mails; computer programs
句型: I have no idea!
What do you use your computer for?
【学习难点】现在完成时 since的用法。
【学时安排】 1课时
【学习过程】
一．自主学习
（一）、翻译下列短语
1．不知道____________             2. 看上去像 ___________
3. 同意某人的观点__________        4. 打开电视 ____________
5.换频道_________________
二．重难点讲解
1. What do you usually use your computer for?
意思为“你通常使用电脑做什么？”这里用“use sth for+ doing”使用某物做某事来回答这个问句。如use computers for searching information.
2. How often do you use your computer to search for information?
how often 用于特殊问句开头，对动作发生的频率提问，表示“多久一次”。
如 How often do you go to the library? –Once a month.
三．课堂反馈
(一)、根据所给汉语完成句子
1.        We can use computers for                            (绘图与设计)
2.        We can use computers for                            (查信息)
3.        We can use computers for                            (进行文字处理)
4.        We can use computers for                            (玩游戏)
5.        We can use computers for                            (发收电子邮件)
6.        We can use computers for                            (写电脑程序)

四.课后巩固

(一)、写出下列句子的同意句：
1.I’m afraid I don’t know.
I’m afraid I ______ _______ ________.
2.Tom will say “Yes” to me.
Tom will ______ _____ me.
3.The boy turns on the TV .
The TV _______ _______ _______ by the boy .
4.I use the computer to search for information.
The computer is _______ _______ search for information.

（二）、根据首字母或用所给词的适当形式填空
1.I like designing clothes. I’d like to be a d_________ when I grow up.
2.The world grows fast. Our k__________ must grow fast, too.
3.Xu Xiake is a famous t_________. He traveled many places of China.
4.I want to buy this book, but the shopkeeper said it was _________ (sell) out.
5.The computer game has four ____________ (level).
6.The woman became popular by __________(write) some novels.

（三）、完成下列对话：
A: What’s this, Tom?     
B:__1__.  
A: It looks like a television, doesn’t it?
B:_2__.
A: But what’s this?
B:--I think ____3___.
A: Oh, no,  __4__.
B: What’s it used for?
A: It says here “___5___”.

1.______   2.______   3.______   4.______   5.______

A  I have no idea
B  It’s the remote control
C  Yes, I agree.
D  It is used to point at information
E  It’s a mouse.

太感谢楼主了，谢谢呀。