Module 7 Unit 1Living with technologyElectrical appliances:Machines are electrical, which are used for doing jobs in the home, such as washing clothes or cooking.Most homes now have numerous electrical appliances, from dishwashers to microwave ovens.Electronic devices:Small pieces of equipment, especially advanced electronic equipment.Some cars are fitted with a safety device which wont let the car start unless passengers are wearing seat belts.High technology has a direct effect on our life.What electrical and electronic appliances do you have at home? TV setremote control refrigeratorwashing machine microwave ovenair-conditioner flatiron dust catcher/vacuum cleanerelectric rice cookerelectromagnetic ovenkitchen ventilator (油烟机油烟机) cooking utensils （炊具）炊具） desktop laptopdigital cameraDVDMP3microphoneelectronic calculatorhair dryercellphonetelephonetape recorderelectric fanMicrowave ovensRefrigeratorsTV setsAir conditionersWashing machinesVacuum cleanersDishwasherComputersCD playersMobile phonesDigital cameraElectronic dictionariesWhich do you think is the most useful? Why?Is there anything that you dont think is useful? Why?The development of electric devices:Development of TVblack-and-white TVcolour TVLCD screenDiscussion:1. What kind of TV do you have at home?2. What differences can you find between the TV in your home and the TV in this picture?3. What kind of pictures did early TVs have?4. What other functions do you need in a modern TV? What differences can you find between the TV in your home and the TV in this picture? Early TV had antennae on top. The screen was very small and could show only black-and-white pictures. The size of the TV was small compared with modern TV, and usually it looked like a wooden box. Early TV also did not have a remote control. The control panel was on one side of the screen.What kind of pictures did early TV have? Early TV had black-and-white pictures that were fuzzy.What other functions do you need in a modern TV? desktop laptopPalmDevelopment of computerDevelopment of dictionarydictionaryelectronic dictionaryDiscussion:1. How do you look up a word in a paper dictionary?2. How many of you have an electronic dictionary? How do you look up a word in such a dictionary?3. Besides the dictionary, what else can be stored in your electronic dictionary?4. Which do you prefer, an electronic dictionary or a traditional paper dictionary? Why? Howdoyoulookupawordinapaperdictionary?ThewordsinapaperdictionaryarearrangedinalphabeticalorderfromAtoZ.Weneedtolookatthefirstletterofthewordanduseittosearchinthedictionary.Iftwowordsstartwiththesameletter,welookatthesecondlettertodecidethealphabeticalorder.Ifthefirstandthesecondlettersarethesame,welookatthethirdletterandsoon. How do you look up a word in such a dictionary? We key in the word we want to look up and click the button Enter. Then the word entry will appear on the screen. There can be a calendar, a list of addresses and phone numbers, memos or a clock. More recent electronic dictionaries have large memory space and some can be used as electronic books with hundreds of books stored inside. Which do you prefer, an electronic book or a traditional paper book? Why? Besides the dictionary, what else can be stored in your electronic dictionary?Development of communicationletter/telegramtelephonebeepercellphoneThe First Cellphone (1973)Name: Motorola Dyna-TacSize: 9 x 5 x 1.75 inchesWeight: 2.5 poundsDisplay: NoneNumber of Circuit Boards: 30Talk time: 35 minutesRecharge Time: 10 hoursFeatures: Talk, listen, dial Discussion:1. How did people keep in touch in the past?2. What are some recent developments in mobile phone technology?3. Many high school students bring mobile phones to their schools. Do you think high school students should use mobile phones at school? Why or why not? How did people keep in touch in the past? People sent letters in the past, but letters were slow, and they took from a few days to several months to arrive. Then people invented the telegraph, but the telegraph could send only short sentences. Later, people could communicate via telephone, but the disadvantage was that not everyone had a telephone. Now, people use e-mails to communicate. E-mails are quick, but people without computers and access to the Internet cannot send e-mails. Today, most people use mobile phones to keep in touch with others. The size of a mobile phone is small so people can carry one in a pocket and receive and make calls wherever they are and whenever it is. What recent developments have been made to mobile phones? Now, mobile phones have more and more functions. They can 1)sendtextmessages2)beusedasadigitalcameratotakestillorevenmovingpictures.Peoplecansendthepicturestoothermobilephonesore-mailaddresses.3)MobilephonescanbeconnectedtotheInternetandpeoplecanlookatwebpageswithmobilephones.4)MoreadvancedmobilephonescanreceiveTVsignalssothatpeoplecanwatchliveTV.Developmentof cameraMobile phonewith a cameradigital cameracameraDevelopment of audio(音响音响) devicegramophone(留声机留声机)radio/tape recordermp3CD playerDiscussion:1. What did people need when they wanted to record music in the past?2. How did people record music in the past?3. Look at the picture. What devices do people need to record music now?4. How do people record music using a computer? What did people need when they wanted to record music in the past? Tapes and a tape recorder. How did people record music in the past? People put the tapes into the recorder, then played the tape with music at one side and pushed the play and record buttons at the other side to record the music onto the blank tape. Development of fanfanair-conditionerelectric fanDiscussion:1.What can our human beings benefit from the development of electric and electronic appliances? 2.Can we depend on these appliances completely?Man has made remarkable progress in this area in the last few decades. Whats your opinion on this? They are invented to meet peoples needs.They have improved peoples lives to some degree.They are developing very quickly.The radiation from some of the electrical and electronic devices, such as mobile phones, may be harmful to peoples health.When people buy new electrical of electronic devices, they throw away the old ones. This may generate large amount of waste, which is harmful to the environment. Summary With peoples hard work and intelligence, human beings own lots of useful and handyelectric and electronic devices.These devicesdo make us save a lot of time and energy.Besides, they free us from heavy housework.But we should not depend completely on them.We human beings should make reasonable useof them so that we can relax ourselves andfind pleasure and happiness in our life.1. With mobile phones, we can keep in touch with others wherever we are. (P1)1) Here “wherever” introduces an adverbial clause. The usage of “ever” is as follows:1.Youshouldtrytogetagoodnightssleep_muchworkyouhavetodo.(2004湖北湖北)A.howeverB.nomatterC.althoughD.whatever2.-Dad,Ivefinishedmyassignment.-Good,and_youplayorwatchTV,youmustntdisturbme.（2003上海）上海）A.wheneverB.whetherC.whateverD.nomatter3._makesthisshopdifferentisthatitoffersmorepersonalservices.(2006辽宁宁)A.WhatB.WhoC.WhateverD.Whoever4._teamwinsonSaturdaywillgothroughtothenationalchampionships.(2006山山东)A.NomatterwhatB.NomatterwhichCWhateverD.Whichever5.Thisisaveryinterestingbook.Illbuyit,_.(2006陕西西)A.nomatterhowitmaycostB.howmayitcostC.howmuchmayitcostD.howevermuchitmaycost6.Ifweworkwithastrongwill,wecanovercomeanydifficulty,_greatitis.（1995NMET）A.whatB.howC.howeverD.whatever7.Itisgenerallyconsideredunwisetogiveachild_heorshewants.（1997NMET）A.howeverB.whateverC.whicheverD.whenever8._,Motherwillwaitforhimtohavedinnertogether.（1997NMET）A.HoweverlateisheB.HoweverheislateC.HoweverishelateD.Howeverlateheis2. touch n. be/get/keep, etc. in touch 取得取得/保持联系保持联系Are you still in touch with any of your old school friends?Jane and I never kept in touch after college.Were in close touch with our office in Spain.lose touch 失去联系失去联系We lost touch over the years.-IthinkIllgiveBobaring.-You_.Youhaventbeenintouchwithhimforages.（2006江江苏）A.willB.mayC.havetoD.should3.Howhavedifferentelectronicdeviceschangedovertime?(P1)over1)prep.duringsth.,orwhiledoingsth.:2)在在期期间，在做，在做时I was in Seattle over the summer.Shall we discuss it over lunch/over a drink?Its fascinating to watch how a baby changes and develops over time (=astimepasses).2)aboveorhigherthansth.else,sometimessothatonethingcoverstheother;above:在在的上面的上面The sign over the door said Exit.She held the umbrella over both of us.Helicopters dropped leaflets over the city.3) across from one side to the other, especially by going up and then down: 越过，跨过越过，跨过She jumped over the gate.The road goes over the mountains, not through a tunnel.4) more than: 超过超过 Most of the carpets cost/are over 100. Children over the age of 12 (= older than 12) must have full-price tickets. I value quality of life over money.4. How have different electronic devices changed over time.electronic电子的电子的electricityn.electric用用(带带)电的，产生电的电的，产生电的electrical和电有关的，电的和电有关的，电的+more general nounselectronicdictionaries/music/banking/mailanelectriccable/blanket/fan/cookerelectricalequipment/devices/appliancesanelectricalfault/engineeranelectric(al)company/current/shock