高二英语livingwithtechnology课件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.

(数字化)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：全本小说/全本小说hoq473egk办法挣点钱就没法养家糊口了。现在呀只要有钱，让我背死人也干！”老实人说话就是这么实在。王希维一边说话，一边拿竹竿使劲搅动起来，污泥让他这么一搅动，恶臭味更浓烈了,几乎令人作呕。就在这时，五六个职工抬来一根粗重的铁杠走过来了。刁一德叫嚷道：“怎么这么臭!像茅厕，他妈的我都要吐了。”刁一德是花开啤酒单位的正式工，他高高的个子，人长得肥肥胖胖的，高兴时头总是昂着，像个长颈鹿一样；不高兴时，又像丧家犬一样，灰溜溜的，他长着一副扇风耳，嘴唇发白，一双乌溜溜的眼睛总好像在寻找着什么一样，眼睛提溜提溜转个不停。他的形象确实是有做汉奸的潜质。刁一德一只手抬着铁杠，另外一只手来回使劲地煽：“真臭！真臭！”然后，往地上狠狠地吐了口痰，说：“熏死人，他妈的真臭！”“家里的热被窝躺着舒服得很，可惜没钱，抢银行犯法，不干没有人送钱给你！快点干！”王希维家里都靠他一个人来挣钱，今年的工资少得可怜，沉重的家庭负担使他的脾气变得越来越大。刁一德蹙了蹙眉头，瞪了一眼王希维，狂躁地喊道：“这简直就是在茅坑上面干活，就挣那么几个鸟钱，单