高二英語livingwithtechnology課件2

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(dòng)起來，污泥讓他這么一攪動(dòng)，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(zhǎng)得肥肥胖胖的，高興時(shí)頭總是昂著，像個(gè)長(zhǎng)頸鹿一樣；不高興時(shí)，又像喪家犬一樣，灰溜溜的，他長(zhǎng)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(jiǎn)直就是在茅坑上面干活，就掙那么幾個(gè)鳥錢，單