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unit 3 welcometotheunit aworldofconnections unit3 课件描述 本课的四幅图片构成的海报介绍了因特网及其用途 学生将学会谈论因特网 把世界连接起来 所带来的好处和不利之处 以及因特网将来的用处 theinternetconnectspeopleallovertheworld theinternethasbothpositiveandnegativeaspects talkaboutthecomputer step1 lead in computerterms whichprogrammewouldyouliketowatchtonight aprogrammeissomethingthatweusetocontroloroperateacomputer themusicfromthekeyboardsoundslikemusicfromarealpiano akeyboardisasetofkeysonacomputerthathelpyouoperatethecomputer computerterms computerterms ihatetocleanwindows windowsisakindofcomputerprogramdevelopedbymicrosoft memoryisaspaceintheharddriveofacomputertostoreinformation memoryissomethingyoumaystarttolosewithage computerterms juliewantstohaveapetmouse mouseiswhatyoucontrolwithyourhandtomovethecursoronthecomputerscreen doyouknowhowpeoplekeptintouchwitheachotherinthepast thenhowpeoplekeepintouchwitheachothernow whatareyourexperiencesusingtheinternet step2 brainstorming whatistheinternet theinternet alsocalledthenet isacollectionofcomputersconnectedinaworldwidenetwork whatarethefunctionsoftheinternet nowworkinpairsandhaveadiscussionabouteachofthepictures step3 sharinginformation picture1 searchforinformationonavarietyoftopics 1 whatcanpeopledoonthiswebsite 2 whatdowecallthiskindofwebsitethatprovidessearchingservices 3 howcanyoufindinformationontheinternetusingasearchengine 4 whatsearchenginesdoyouknoworoftenuse whichisyourfavouritesearchengine picture2 shopforthetopbrandsatthebestpricesallovertheworld 1 whatdoyouthinkwouldbetheadvantagesofbuyingthingsonline 2 whatdoyouthinkwouldbethedisadvantagesofonlineshopping picture3 keepintouchwithfamilymemberswhereveryouareintheworld 1 haveyouevertriedtalkingwithyourparentsorfriendsonline 2 whatdevicesdoyouneedifyouwanttotalkwithpeopleonline 3 whatarethegoodpointsandbadpointsofonlinetalking 4 whichwayofcommunicationdoyouprefer talkingfacetoface talkingoverthephone talkingonlineortalkingonlinewithaweb camera why picture4 whatnext thefuturehasnolimits 1 haveyoutriedotheronlineservicesthatarenotmentionedhere whichones 2 whatroledoyouthinktheinternetwillplayinthefuture 3 doyouthinkitisagoodideato live ontheinternetcompletely 1 whatdoyouthinkthemostimportantbenefitoftheinternetis 2 doyouthinktheinternethasanynegativeaspectstoit step4 discussion 3 inwhatwayswilltheinternetimproveourlivesinthefuture usin

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