江苏省苏州市高新区第三中学校八年级英语下册 Unit 3 Online tours Welcome to the Unit课件 .ppt

Unit 3 Online Tours Period 1 Welcome to the unit computers Free talkFree talkDo you have a computer at home?Do you have a computer at home?What can you do with the computer?What can you do with the computer?Howmanypartsarethereinacomputer?Whatiseachpartcalled?Doesithavemoreuses(用途)?Whatcanweuseitfor?screescreen nmain unitmain unitkeyboardkeyboardmousmouse emicmice eCD-ROM CD-ROM drive drive 光驱光驱光驱光驱printer printer modem modem 调制解调器调制解调器调制解调器调制解调器USB driveUSB drivespeakerspeakermdemmenu（菜单）（菜单）program(程序程序)icons(图标图标)Fill in the blanks.1.A _ is used for typing information into computer.2.A _ is used for moving the cursor(光标光标)on the screen.3.A _ is used for putting the words and pictures onto paper.keyboardmouseprinter4.Programmers(程序员程序员)design _ to control computers.5.We can see words and pictures on the _.6._ shows a list of information and lets you choose what to do.programsscreenMenuA:Whats this?B:Its a keyboard.A:What can we use it for?B:We can use it for typing.keyboard(type)screen(see words and pictures)mouse(click on icons for more details)printer(print words and picturesout)Practice:Different uses of computersdraw and designsearch for informationdo word processingplay gameswrite computer programssend and receive e-mailschat with friendswatch videos/TV programmesListen and answer.What does Simon usually use his computer for?Why?He usually uses it to search for information.Because its fast and easy.Work in pairs.Use Daniel and Simons conversation as a model.Its time for your turn!Pair work:A:What do you use your computer to do/for?B:I usually use it to/for.A:Why?B:A:How often?B:.(interesting/fast/easy/funny/safe/cheap)Do Eddie and Hobo know well about computers?Listen,read and answer:1.Have Hobo and Eddie ever seen a computer？No,they havent.2.What do Eddie and Hobo think the computer looks like?They think it looks like a TV.3.Do you know what the remote control really is?It is a mouse.Fill in the blanksFill in the blanksEddie and Hobo know 1.(everything,nothing)about computers.Hobo thinks thecomputer looks like a 2.Eddie agrees with Hobo and he thinks the mouse is the 3.r c .They want to use themouse to 4.the channel because theprogramme began an hour 5.a .nothingTVemoteontrolchangegoWe should make good use of(合理合理利用利用)computers.Do not spend too much time on computers,especially the online games!Its harmful to our eyes,health,study.It costs too much money.Discussion WritingWriteaboutadvantagesanddisadvantagesofusingcomputers.Computersarewidelyusedinourmodernlife.Itcanhelpusalotinmanyways.However,Ithink