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M7U1LivingwithtechnologyWelcometotheunitWhatelectronicproductsdoyouhaveathome?Whichdoyouthinkisthemostuseful?Why?Electronicappliancesrefrigeratorwashingmachinemicrowaveovenair-conditionerelectricricecookerdrinkingmachinewaterheatervacuumcleanermobilephonesdigitalcameras
MP4playerMP3playerelectronictranslatorelectronicdictionaryDoyouthinktheseproductshavemadeourlivesmoreconvenient?Why?Aretheyhelpfulorjustmakeyoulazier?
Whatdoyouthinklifewouldbelikewithoutthem?Howhavedifferentelectronicdeviceschangedovertime?Thedevelopmentofsomeelectricdevices:developmentofTVblack-and-whitescreencolourscreenLCDscreenWhatkindofaTVdoyouhaveathome?WhatotherfunctionsdoesamodernTVhave?EarlyTVwasin______________andhadbad________pictures.blackandwhitefuzzyWhatdifferencescanyoufindbetweentheTVinyourhomeandtheTVinthispicture?EarlyTVhadantennaeontop.The_____wasverysmallandcouldshowonlyblack-and-whitepictures.ThesizeoftheTVwassmall_________withmodernTV,andusuallyitlookedlikea_______box.EarlyTValsodidnothavea________control.Thecontrolpanelwasononesideofthescreen.screencomparedwoodenremotecontrol
desktop
laptop/notebookpalmtopdevelopmentofcomputerWhatfunctionsdoesacomputerhave?…Nowwecanrecordmusicusingcomputers.Whatdidpeopleneedwhentheywantedtorecordmusicinthepast?Tapesandataperecorder.Lookatthepicture.Whatdevicesdopeopleneedtorecordmusicnow?Acomputer,anMP3playerandsomerecordingsoftware.HowdoPeoplerecordmusicusingacomputer?PeoplecopythemusicfromaCDtothecomputerusingrecordingsoftware.ThemusicwillthenbedigitalizedinandplayedbyanMPPlayer.
(數(shù)字化)digitalizeddevelopmentofdictionarydictionaryelectronicdictionaryDictionariesneverlookedlikethisbefore.Howdoyoulookupawordinapaperdictionary?
Thewordsinapaperdictionaryare
arrangedinalphabeticalorderfrom‘A’to‘Z’.Weneedtolookatthefirstletterofthewordanduseittosearchinthedictionary.Iftwowordsstartwiththesameletter,welookatthesecondlettertodecidethealphabeticalorder.Ifthefirstandsecondlettersarethesame,welookatthethirdletterandsoon.Howmanyofyouhaveanelectronicdictionary?Howdoyoulookupawordinsuchadictionary?
Wekeyinthewordwewanttolookupandclickthebutton‘Enter’.Thenthewordentrywillappearonthescreen.Besidesthedictionary,whatelsecanbestoredinyourelectronicdictionary?
Therecanbeacalendar,alistofaddressesandphonenumbers,memosoraclock.Morerecentelectronicdictionarieshavelargememoryspaceandsomecanbeusedaselectronicbookswithhundredsofbooksstoredinside.Whichdoyouprefer,anelectronicbookoratraditionalpaperbook?Why?
Withthemobilephones,wecankeepintouchwithothers_________weare.whereverHowdidpeoplekeepintouchinthepast?
Peoplesentlettersinthepast,______letterswereslow,andtheytookfromafewdaystoseveralmonthstoarrive.______,peopleinventedthetelegraph,butthetelegraphcouldsend_____shortsentences.____,peoplecouldcommunicateviatelephone,butthedisadvantagewasthatnoteveryonehadatelephone.butThenonlyLaterNow,peopleusee-mailstocommunicate.E-mailsarequick,butpeople_________computersandaccesstotheInternetcannotsende-mails.Today,mostpeopleusemobilephonestokeepin_______withothers.The____ofamobilephoneissmallsopeoplecancarryoneinapocketandreceiveandmakecallswherevertheyareand_________itis.withouttouchwheneversizeWhatrecentdevelopmentshavebeenmadetomobilephones?sendtextmessagesbeusedasdigitalcamerastotakestillorevenmovingpicturessendthepicturestheytaketoothermobilephonesore-mailaddressesbeconnectedtotheInternetbeusedtolookatwebpages
receiveTVsignalssothatpeoplecanwatchliveTVprogrammesManyhighschoolstudentsbringmobilephonestotheirschools.Doyouthinkhighschoolstudentsshouldusemobilephonesatschool?Whyorwhynot?Howhavetheseinventionsimprovedpeople’slives?
Technologicaldevelopmentsinthelastfewdecadeshavebeen____________!breathtakingmeetpeople’sneedsimprovepeople’slivestosomedegreehelppeoplesavealotoftimemakeourlivesmoreconvenientSomethingincommon:Besidestheadvantages,whatarethedisadvantagesoftheseproducts?●Theradiationfromsomeoftheelectricalandelectronicdevices,suchasmobilephones,maybeharmfultopeople’shealth.●Wecannotignorethateveryyearelectronicwasteisincreasingconsiderably,muchofwhichwilldogreatharmtoourenvironmentifnotproperlydealtwith.Collectmoreinformationaboutthedevelopmentofsomeelectronicdevices.PreviewtheReadingpart.Homework:全本小說/全本小說hoq473egk辦法掙點(diǎn)錢就沒法養(yǎng)家糊口了?,F(xiàn)在呀只要有錢,讓我背死人也干!”老實(shí)人說話就是這么實(shí)在。王希維一邊說話,一邊拿竹竿使勁攪動起來,污泥讓他這么一攪動,惡臭味更濃烈了,幾乎令人作嘔。就在這時(shí),五六個(gè)職工抬來一根粗重的鐵杠走過來了。刁一德叫嚷道:“怎么這么臭!像茅廁,他媽的我都要吐了?!钡笠坏率腔ㄩ_啤酒單位的正式工,他高高的個(gè)子,人長得肥肥胖胖的,高興時(shí)頭總是昂著,像個(gè)長頸鹿一樣;不高興時(shí),又像喪家犬一樣,灰溜溜的,他長著一副扇風(fēng)耳,嘴唇發(fā)白,一雙烏溜溜的眼睛總好像在尋找著什么一樣,眼睛提溜提溜轉(zhuǎn)個(gè)不停。他的形象確實(shí)是有做漢奸的潛質(zhì)。刁一德一只手抬著鐵杠,另外一只手來回使勁地煽:“真臭!真臭!”然后,往地上狠狠地吐了口痰,說:“熏死人,他媽的真臭!”“家里的熱被窩躺著舒服得很,可惜沒錢,搶銀行犯法,不干沒有人送錢給你!快點(diǎn)干!”王希維家里都靠他一個(gè)人來掙錢,今年的工資少得可憐,沉重的家庭負(fù)擔(dān)使他的脾氣變得越來越大。刁一德蹙了蹙眉頭,瞪了一眼王希維,狂躁地喊道:“這簡直就是在茅坑上面干活,就掙那么幾個(gè)鳥錢,單
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