英语：Unit 1《Living with technology》课件-Welcome to the unit(牛津译林版选修7).ppt

《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