1、Unit 7,Whats this for?,Brainstorm machines and modern inventions,Telephone, cell phone, credit cards, TV, CDs, laptop, computer, video games.,Match,Cell phone Pocket calculator Microwave oven World wide web Telephone answering machine,1945 1949 1970 1979 1989,What do you use your computer for?,Play
2、games Buy things Do research,Infinitives and gerunds for uses and purposes,Infinitives: To +verb( do) 例: I use my computer to send e-mails. 我用电脑来玩游戏 I use my computer to play games.,Gerunds: For+ V-ING( doing) 例: I use my computer for sending e-mails. 我用电脑来玩游戏 I use my computer for playing games.,注：
3、语法部分第二句为被动语态，会在unit11学习到,Computers are often used to pay bills Computers are often used for paying bills Be used for/to 被用来做某事,Exercise,Satellite Robot DNA fingerprinting CD-ROM Transmit Text message Criminal,卫星 机器人 DNA指纹图谱/分析 只读光盘驱动器 传输 短信 犯罪,Word power,Disc drive Geek, technophile Hacker Monitor M
4、ouse Surf the net Hardware,光盘驱动 技术宅 黑客 显示器 鼠标 上网 硬件,Word power,Listening,Forty-two percent of the population never uses the Internet. Older people, people living in rural areas, those who are worried about privacy, or who think the Internet isnt necessary in their life dont use the Internet.,Listeni
5、ng,Are people who ask others to send e-mails or browse Web sites for them. Are people who once used the Internet, but dont anymore. People may become Internet dropouts because they dont have a computer anymore, dont have enough time, or arent interested,Conversation,Who owns the cell phone? Who are
6、they calling? Whats the first thing to do? What should the woman press?,Conversation Can I borrow your phone?,Jenny: Can I borrow your phone to call my boss? Richard: I cant you still dont have a cell phone. Here you go. Jenny: Thanks. Now, what do I need to do? Richard: First of all, be sure to tur
7、n it on. And dont forget to dial the area code. Jenny: OK, I can see the number, but I cant hear anything. Richard: Thats because you havent pressed the call button. Jenny: Oh, good. Its ringing. Richard: Try not to get too excited. Youll probably get his voice mail. Jenny: Youre right. Its a recording. Richard: Make sure to hit the end button or else youll leave our conversation on his voice mail!,Imperatives and infinitives for giving suggestions,Be sure to确定 Dont forget to别忘了 Try to尝试 Try not to试着别 Make sure to确保,Verb. (动词原形),
