高中英语Unit3computers课件新人教必修2

1、2021/8/11 星期三1Unit 3 Computersperiod 1 warming up 2021/8/11 星期三2A toy?A handbag?ComputersRiddles(谜语):2021/8/11 星期三3 I am very old now. I was born in China. Many people used me for calculating in the past, but now I am a bit lonely because they dont like me now. Do you know who I am?abacusRiddles(谜语)

2、:2021/8/11 星期三4 I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems. Do you know who I am?calculatorRiddles(谜语):2021/8/11 星期三5 I can be used for calculating. Besides, I can also be used for watching DVD, sending e-mail and communicati

3、ng through the Internet. However, I am not a PC, because Im small enough for you to take me with you.notebook computerDo you know who I am?Riddles(谜语):2021/8/11 星期三6A huge computerA PCthe history of the computerPalmtop 2021/8/11 星期三7How much do you know about a computer?Give the English name of the

4、following pictures of the computer components (组件)2021/8/11 星期三8What is it in English?Main board(主板)2021/8/11 星期三9What is it in English?CPU (central processing Unit)中央处理器2021/8/11 星期三10What is it in English?hard disc2021/8/11 星期三11What is it in English?Keyboard (键盘)2021/8/11 星期三12What is it in Engli

5、sh?monitorscreen2021/8/11 星期三13What is it in English?mouse鼠标2021/8/11 星期三14DVD ROM2021/8/11 星期三15monitorscreen mouse keyboard hard diskDVD-ROM(1) the part of the computer that looks like a television.(2) the part of the monitor that you look at.(3) something you use to click on things (files, etc.)(

6、4) the part of the computer that you type on.(5) the part of a computer that stores information.(6) The part of computer that we can put a CD in.Work out the names 2021/8/11 星期三16Computer and Internet type my homeworkdraw picturesplay gamescommunicate with my friends.gather information for my lesson

7、slisten to musicwatch movies2021/8/11 星期三17words and expressionMathematicalCalculator (n.)ITPCIn my opinionVt.CalculateInformation TechnologyPersonal Computer2021/8/11 星期三18TIPSSome words on the Internet:netizen 网民Net surf 网络漫游computer virus 计算机病毒cyber 计算机的，网络的browse 浏览cyberspace 网络空间scroll 滚动显屏acce

8、ss charge 接入费cursor 光标BBS 公告板服务 backer 黑客chat room 聊天室click 点击2021/8/11 星期三19Homework1.预习unit3的reading部分 2.复习第一二单元.2021/8/11 星期三20Computers can be used as.typewriterprojectorvideo game playerdrawing board2021/8/11 星期三21USeful expressions I think that In my opinion, I believe that I agree because I d

9、isagree becauseGiving an opinionReasoning2021/8/11 星期三22 Discussion: Is it very important to learn computer skills for us? Why or why not?DiscussionIs it very important to learn computer skills for us? Why or why not?Use the following expression in your discussion.I think that In my opinion I believe that Whats your reason?Why do you think so?2021/8/11 星期三23You are given a chance to design a computer for yourself.Draw a pictur