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ID:57033265
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页数:25页
时间:2020-07-27
《英语:Unit 1《Living with technology》课件-Welcome to the unit(牛津译林版选修7).ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、LivingwithtechnologyBrainstorming:Whatelectricalandelectronicproductsdoyouhaveathome?TVsetair-conditionerrefrigeratorwashingmachineflatirondustcatcherelectricricecookerelectromagneticovenkitchenventilator(油烟机)cookingutensils(炊具)desktoplaptopdigitalcameraDVDmicrophoneMP4MP3cellph
2、onetelephonetaperecorderelectroniccalculatorelectricfanhairdryerWhichdoyouthinkisthemostimportant?Why?Isthereanythingthatyoudon’tthinkisuseful?Technologicaldevelopmentsinthelastfewdecadeshavebeenbreathing.Lookatthepicturesbelowanddescriblewhatyousee.Thedevelopmentofelectricdevic
3、es:black-and-whiteTVcolourTVLCDscreenWhatkindofTVdoyouhaveathome?EarlyTVhadantennaeontop.Thescreenwasverysmallandcouldshowonlyblack-and-whitepictures.ThesizeoftheTVwassmallcomparedwithmodernTV,andusuallyitlookedlikeawoodenbox.EarlyTValsodidnothavearemotecontrol.Thecontrolpanelwa
4、sononesideofthescreen.desktoplaptopPalmdevelopmentofcomputerdevelopmentofdictionarydictionaryelectronicdictionarydevelopmentofcommunicationletter/telegramtelephonebeepercellphoneHowdidpeoplekeepintouchinthepast?Peoplesentlettersinthepast,butletterswereslow,andtheytookfromafewday
5、stoseveralmonthstoarrive.Thenpeopleinventedthetelegraph,butthetelegraphcouldsendonlyshortsentences.Later,peoplecouldcommunicateviatelephone,butthedisadvantagewasthatnoteveryonehadatelephone.Now,peopleusee-mailstocommunicate.E-mailsarequick,butpeoplewithoutcomputersandaccesstothe
6、Internetcannotsende-mails.Today,mostpeopleusemobilephonestokeepintouchwithothers.Thesizeofamobilephoneissmallsopeoplecancarryoneinapocketandreceiveandmakecallswherevertheyareandwheneveritis.Whatrecentdevelopmentshavebeenmadetomobilephones?Now,mobilephoneshavemoreandmorefunctions
7、.Theycansendtextmessages.Theycanalsobeusedasadigitalcameratotakestillorevenmovingpictures.Peoplecansendthepicturestheytaketoothermobilephonesore-mailaddresses.MobilephonescanbeconnectedtotheInternetandpeoplecanlookatwebpageswithmobilephones.Moretechnologicallyadvancedmobilephone
8、scanreceiveTVsignalssothatpeoplecanwatchliveTVp
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