unit 2 leading-in_英语考试_外语学习_教育专区.ppt

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1、Unit2DesignProposalUnitobjectives:GetbasicideasaboutlocalareanetworkUnderstandtheadofanITcompanySummarizetherequirementsofaclientReadaLANdesignrequestinformationsheetMakeacomparisonamongISPsTaskMatchthefollowingtermswiththeirChinesemeanings.1.WAN2.router3.Ethernet4.datatr

2、ansferrate5.protocol6.networkedcomputers7.instantmessaging8.DSL9.modem10.configurationA.数据传输速度B.广域网C.数字用户线D.即时通信E.以太网F.联网计算机G.调制解调器H.（数据传输的）协议I.路由器J.配置ReadingAHomeNext>

3、mesfromthephysicalconceptoftheether.ItdefinesanumberofwiringandsignalingstandardsforthePhysicalLayeroftheOSInetworkingmodel,throughmeansofnetworkaccessattheMediaAccessControlDataLinkLayer,andacommonaddressingformat.Wi-Fi:Wi-FiisatrademarkoftheWi-FiAllianceforcertifiedprod

4、uctsbasedontheIEEE802.11standards.Thiscertificationwarrantsinteroperabilitybetweendifferentwirelessdevices.TaskMatcheachtermwithitscorrespondingpictureandthenchoosetherightwordtocompleteeachsentencebelow.ISP(InternetServiceProvider)LANemailwebsiteWarming-upHomeNext>

5、.A(n)_____allowspeopletocompose,send,andreceivemessagesquicklyandconvenientlyatanytimeratherthangoingtothepostofficeandmailingaletter.2.Moreandmorecompaniesarebuildinga(n)_____abouttheirproductsandservicesasawaytopromotemorebusinessonline.3.A(n)___isacompanythatoffersitsc

6、ustomersaccesstotheInternetanditconnectstoitscustomersusingadatatransmissiontechnologyappropriatefordeliveringInternetProtocoldatagram,suchasdial-up,DSL,cablemodem,etc.4.A(n)_____consistsoftwoormorecomputersconnectedtogetherinabuildingorhome-usingsoftwareandhardware.Warmi

7、ng-upemailwebsiteISP__LANHomeNext>

8、thosegiveninChinesebelow.Writethecorrespondinglettersinthebrackets.VocabularyandStructureHomeNex