人教版 必修二 unit3 Computers warming up

Unit3ComputersPeriod1WarmingupAtoy?Ahandbag?Riddles(谜语):Iamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculating计算inthepast,butnowIamabitlonelybecausetheydon’tlikemenow.DoyouknowwhoIam?abacus算盘Riddles(谜语):Iamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematical数学的problems.DoyouknowwhoIam?calculatorRiddles(谜语):Icanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseI’msmallenoughforyoutotakemewithyou.notebookcomputerDoyouknowwhoIam?Riddles(谜语):AhugecomputerAPCPalmtop掌上电脑Howmuchdoyouknowaboutacomputer???GivetheEnglishnameofthefollowingpicturesofthecomputercomponents(组件)WhatisitinEnglish??Mainboard(主板)WhatisitinEnglish??CPU(centralprocessingUnit)中央处理器WhatisitinEnglish??harddisc硬盘WhatisitinEnglish??Keyboard(键盘)WhatisitinEnglish??Monitor显示器screenWhatisitinEnglish??mouse鼠标DVDROMHeavy!Difficult!Hard!Tired!1.Easy!2.Fast!3.Free!keyboardmousemonitorscreenspeakerhostcomputer主机cameramonitorscreenmousekeyboardharddiskDVD-ROM(1)thepartofthecomputerthatlookslikeatelevision.(2)thepartofthemonitorthatyoulookat.(3)somethingyouusetoclickonthings(files,etc.)(4)thepartofthecomputerthatyoutypeon.(5)thepartofacomputerthatstoresinformation.(6)ThepartofcomputerthatwecanputaCDin.WorkoutthenamesWriteoutallthewordsyouknowaboutcomputers.computerclickupdateInternetkeyboardWhatdotheyhaveincommon?anabacusacalculatoradesktopanotebookcomputeralaptopdigitalcameraarobot(Whatdotheyhaveincommon?)•Ithinkthat…•Inmyopinion…•Ibelievethat…•What’syourreason?•Whydoyouthinkso?1.Theycanbeusedforcalculating.2.Theycandealwithmathsproblems.3.Theyareourfriends.4.Theyareusefulandhelpful.DiscussionworkforusinMars(火星)What’snext?carrythingsworkinwars(战斗)仿真机器人entertainment娱乐Whatdoyouthinkwillbethenextdevelopment?CD--DVD-ROM---DVDRWCRTmonitor彩色显示器LCDmonitor液晶显示器CPUharddisc硬盘chips/motherboard主板somehardware硬件:keyboardmouseModem调制调解器Scanner扫描仪Printer打印机Speaker音响floppydisc/disk软磁碟USBflashdiscU盘CD/VCD/DVDMP3playerMP4playerMemory:(存储器)移动硬盘USBFlashdisc1TB固态硬盘1T硬盘Harddisc:Core2Duo酷睿2双核酷睿2:4核龙芯8核cpu:otherusefulwordsandexpressionsaboutcomputer:Network网络Virus病毒Download下载Upload上传Program程序Website站点Hacker黑客Homepage主页Password密码Desktop桌面Username用户名Click点击Software软件Hardware硬件Homepage主页Homework预习Reading部分，把新单词的翻译写到课文中去