高中英语 unit3 the world online welcome to the unit教案 牛津译林版选修7 (2)

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1、高二英语教案Unit3TheworldonlineWelcometotheunitTeachingaims:1.EnablethestudentstoknowmoreabouttheInternetandtalkabouttheInternetanditsusesbymakingadebateontheeffectsoftheInternetonourlives;2.Developthestudents’speakinganddiscussingskillsbytalkingaboutthefourpicturesandsharingid

2、easinagroup;3.HaveafluenttalkonthattheInternetconnectspeopleallovertheworldandthattheInternethasbothpositiveandnegativeaspects.Teacingprocedures:Step1Lead-inLearnabout“computerterms”.(1)Whichprogrammewouldyouliketowatchtonight?→Aprogramissomethingthatweusetocontroloropera

3、teacomputer.(2)Themusicfromthekeyboardsoundslikemusicfromarealpiano.→Akeyboardisasetofkeysonacomputerthathelpyouoperatethecomputer.(3)Ihatetocleanwindows.→WindowsisakindofcomputerprogramdevelopedbyMicrosoft.(4)Memoryissomethingyoumaystarttolosewithage.→Memoryisaspaceinthe

4、harddriveofacomputertostoreinformation.(5)Juliewantstohaveapetmouse.→Mouseiswhatyoucontrolwithhandtomovethecursoronthecomputerscreen.Step2Brainstorming1.Doyouknowhowpeoplekeptintouchwitheachotherinthepast?→Peopleusedletters,postcards,telegraphs,faxesandtelephonestocommuni

5、catebeforetheinventionoftheInternet.2.Thenhowpeoplekeepintouchwitheachothernow?→WiththedevelopmentoftheInternet,moreandmorepeoplearenowusingcomputersandtheInternetforcommunication.3.WhatistheInternet?→TheInternetisacollectionofcomputersconnectedinaworldwidenetwork.4.Whata

6、rethefunctionsoftheInternet?→Chatting,shopping,music,etc.5.WhatareyourexperiencesusingtheInternet?Step3PicturestalkingPicture11.Whatcanpeopledoonthiswebsite?(Searchforinformationonavarietyoftopics.)2.Whatdowecallthiskindofwebsitethatprovidessearchingservices?(Wecallitsear

7、chengine.)3.HowtofindinformationontheInternetusingasearchengine?(Enterkeywords.)4.Whatsearchenginesdoyouknoworoftenuse?(Google,Baidu.)Picture21.Whatdoyouthinkwouldbetheadvantagesofshoppingonline?(Asonlineshopkeepersdonothavetopayfortherentalofarealshop,theproductssoldonli

8、neareusuallycheaperthanthoseinrealshops.Itiseasyandconveninenttocompareaproductinseveralonlinesh