湖南师大 高二英语 M7-U1 Welcome课件 牛津译林版.ppt

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1、M7U1LivingwithtechnologyWelcometotheunitWhatelectronicproductsdoyouhaveathome?Whichdoyouthinkisthemostuseful?Why?Electronicappliancesrefrigeratorwashingmachinemicrowaveovenair-conditionerelectricricecookerdrinkingmachinewaterheatervacuumcleanermobilephonesdigitalcameras

2、MP4playerMP3playerelectronictranslatorelectronicdictionaryDoyouthinktheseproductshavemadeourlivesmoreconvenient?Why?Aretheyhelpfulorjustmakeyoulazier?Whatdoyouthinklifewouldbelikewithoutthem?Howhavedifferentelectronicdeviceschangedovertime?Thedevelopmentofsomeelectricde

3、vices:developmentofTVblack-and-whitescreencolourscreenLCDscreenWhatkindofaTVdoyouhaveathome?WhatotherfunctionsdoesamodernTVhave?EarlyTVwasin______________andhadbad________pictures.blackandwhitefuzzyWhatdifferencescanyoufindbetweentheTVinyourhomeandtheTVinthispicture?Ear

4、lyTVhadantennaeontop.The_____wasverysmallandcouldshowonlyblack-and-whitepictures.ThesizeoftheTVwassmall_________withmodernTV,andusuallyitlookedlikea_______box.EarlyTValsodidnothavea________control.Thecontrolpanelwasononesideofthescreen.screencomparedwoodenremotecontrold

5、esktoplaptop/notebookpalmtopdevelopmentofcomputerWhatfunctionsdoesacomputerhave?…Nowwecanrecordmusicusingcomputers.Whatdidpeopleneedwhentheywantedtorecordmusicinthepast?Tapesandataperecorder.Lookatthepicture.Whatdevicesdopeopleneedtorecordmusicnow?Acomputer,anMP3playera

6、ndsomerecordingsoftware.HowdoPeoplerecordmusicusingacomputer?PeoplecopythemusicfromaCDtothecomputerusingrecordingsoftware.ThemusicwillthenbedigitalizedinandplayedbyanMPPlayer.(数字化)digitalizeddevelopmentofdictionarydictionaryelectronicdictionaryDictionariesneverlookedlik

7、ethisbefore.Howdoyoulookupawordinapaperdictionary?Thewordsinapaperdictionaryarearrangedinalphabeticalorderfrom‘A’to‘Z’.Weneedtolookatthefirstletterofthewordanduseittosearchinthedictionary.Iftwowordsstartwiththesameletter,welookatthesecondlettertodecidethealphabeticalord

8、er.Ifthefirstandsecondlettersarethesame,welookatthethirdletterandsoon.Howmanyofyouhaveanelectronicdictionary?H