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1、Unit2ClosetoHome:TechnologicalAdvancesErodeBarrierBetweenWorkandHomeErode:[ɪˈrəʊd]Vt.(ofacids,rain,windetc)destroyorwearawaygradually.e.g.Metalsareerodedtheclifffaceovertheyears.barrier:[ˈbæriə(r)]n.thingsthatpreventsorcontrolsprogressormovement.e.g.TheSaharaD
2、esertisanaturalbarrierbetweenNorthandcentralAfrica.(fig)hindrance.Step1:Leading-in(10minutes)TechnologicalAdvancesconvenienttransportationblack-and-whitetelevision3-DimensionmoviesCommunicationRevolutionlivingfacilitiesVirtualKeyboardArtificialIntelligenceThea
3、pplicationofpracticalsciencestoindustryorcommerceorworkordailylife…educationmedicalscienceworkingtechnologytransportationlivingcommunicationyouridea...DiscussionAdvantagesoftheInternetDisadvantagesoftheInternetTheadvantages:FasterCommunicationAbundantInformati
4、onResourcesEntertainmentforEveryoneInexhaustibleEducationOnlineServicesandE-commerceDisadvantagesTheftofPersonalInformationSpammingMalwareThreatsAge-inappropriateContentSocialIsolation,Obesity,andDepressionInformationtechnologyInformationtechnology(IT)canbedef
5、inedas“thestudy,design,development,implementation,supportormanagementofcomputer-basedinformationsystems,particularlysoftwareapplicationsandcomputerhardware.”ITspecialistshandleeverythingrelatedtocomputers,includingdatashortage,databaseadministration,andallothe
6、raspectsrelatedtoinformationstorage,retrieval,transmittal,protection,andprocessinginformationsecurely.[træns'mɪtəl]n.传送[rɪ'triːvl]n.检索Didyoumakeapurchaseonline?AdvantagesandDisadvantagesofShoppingOnlineConvenienceEaseofComparisonShoppingExtensiveProductMixAvai
7、labilityReasonablePriceFourDrawbacksofOnlineShoppingLosetheTactileExperienceShippingAddstotheCostReturnsCanBeCostlyDealingwithanUnknownVendorSuggestions:1.Buywhatyouneed.2.Decidewhichonetobuywithinlesstime.3.Checkhowmuchmoneyyouhavespentonline.4.Budgetyourmone
8、y.TheFleaMarketinYuexiuTheFleaMarketinYuexiuStep2:Reading(45minutes)ClosetoHome:TechnologicalAdvancesErodeBarrierBetweenWorkandHomeErode:[ɪˈrəʊd]Vt.(ofacids,rain,windetc)destroyorw
