人教版高中英语课件：Unit3 Computers Warming up.ppt

warming up unit3 computers warming up, speaking &writing whats next? what do they have in common? what is a computer va tool or a machine vneed electricity vbe used to deal with datas v computers are machines that can be used for performing calculations automatically. they can perform complex and repetitive procedures quickly, precisely and reliably and can quickly store large amounts of data. cd / dvd-rom crt monitorlcd monitor cpu hard disc/diskchips/motherboard keyboard mousemodem floppy discusb flash disc 1 2 4 3 5 6 1. monitor 2. screen 3. cd-rom 4. mouse 5. keyboard 6. hard disk label each part 1 a monitor is 2 the screen is 3 a keyboard is 4 a mouse is 5 a cd-rom is 6 a hard disk is (a) the part of a computer that stores information. (b) the part of the computer that you type on. (c) the part of the computer that looks like a television (d) something you use to click on things (files, etc.). (e) the part of the monitor that you look at. (f) the main device that a computer uses to store information. match the words with their meanings. what can we do with computer/internet? school work games emails music and films chat information photos shopping internet vsome students think of it a way of relaxing, even some of them consider playing computer games can raise their speed of thoughts. but if we cannot control ourselves properly, we will be lost in it, which can bring us much suffering. be lost in/be addicted to（对上瘾 ） be lost in/be addicted to（对上瘾） v nowadays,with the development of computer and its internet, more and more people,especially the young and the teenagers like playing computer games in their spare time. and also, more and more different kinds of the games have appeared in the internet. v theres a big problem that lots of our students are lost in net. in my opinion, what make us addicted into it is for our stress from our study. so we need to take the other exercise instead of it. for example,we can playing basketall after class or with friends walking the dog. of course, the help from our school and perents are necessary. in one word, we must treat the st