高二英语选修（6）module 6 Revision.ppt

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1、Revision1来源，出处2可进入的3数据4保护，防卫5创造，发明6网络7涂经，经由8百分数9设计10文件1.source2.accessible3.data4.defence5.create6.network7.via8.percentage9.design10.documentTeachingaimsanddemands:ReadingandvocabularyImportantanddifficultpoints:Importantwordsandimpressions定语从句it作形式主语和形式宾语V-ing作方

2、式状语Listentothetapeandanswerthequestions1What’stheInternet?2Howdiditstart?3What’stheWorldWideWeb?4Whoinventedit?1.TheInternetisthebiggestsourceofinformationintheworld,andit’saccessiblethroughacomputer.Itconsistsofmillionsofpagesofdata.2.Attheverybeginning,itcalledD

3、ARPANETcreatedbyaUSdefenceorganization.3.TheworldwidewebisacomputernetworkthatallowscomputeruserstoaccessinformationfrommillionsofwebsitesviatheInternet.4.ItwasinventedbyanEnglishscientist,TimBerners–LeeReadthetextagainanddecideifthesesentencearetrueorfalseTherear

4、emillionsofpagesofinformationontheInternet.TheUSarmywerethefirstpeoplewhousedanInternetsystem.UniversitiesstartedusingtheInternetatthesametimeasthearmy.ThepercentageofwebsitesinEnglishisgettingsmaller.TimBerners-LeemadeitpossibleforscientiststousetheInternet.Hehas

5、madealotofmoneyfromhisinvention.TTFTFFReadthetextagainandfindouttheselanguagepointsItconsistsofmillionsofpagesofdata.TheycreatedanetworkofcomputerscalledDARPANET.Itthenbecamepossibleforuniversitiestousethesystemaswell.NSFNETbecameknownastheInternetwork,orInternet.

6、TheWorldWideWebisacomputernetworkthatallowscomputeruserstoaccessinformationfrommillionsofwebsitesviatheinternet.Atthemoment,about80%ofwebtrafficisinEnglishbutthispercentageisgoingdown.Berners-Leebuilthisfirstcomputerwhilehewasatuniversityusinganoldtelevision.Hecam

7、eupwiththeideaoftheWorldWideWebin1989whilehewasworkinginSwitzerland.Berners-LeemadeitpossibleforeveryonetousetheInternet,notjustuniversitiesandthearmy.EveryoneintheworldcanaccesstheInternetusinghisworldwidewebsystem..Exercise1Thediscdigitally_____inthestudio,sound

8、edfantasticatthepartylastnight.A.recordedB．recordingC.toberecordedD.havingrecorded2Itishard____him____changehismind.ofyoutomake;toB.foryoutomake;C.fory