高二英语精品课件：UNIT1 LIVING WITH TECHNOLOGY-WELCOME TO THE UNIT .ppt

1、What are we going to talk about today?Or anything else more?Just Mobile Phones?What are they about?Living with TechnologyWelcome to the unitUnit 1What electrical and electric products do you have at home?-Microwave ovens,refrigerators,TV sets,air conditioners,washing machines,vacuum cleaners(吸尘器),CD

2、 players,electric fans,mobile phones,digital cameras.Do you know how have these electric devices developed in the past decades?(Q2,Page1)Picture 1:Compare the TV in the picture with the TV in your home:1.Antennae on top/2.the small screen/3.only black and white pictures/fuzzy pictures 4.no remote co

3、ntrol(the control panel（仪表板）was on one side of the screen)The development of electric devices:development of TVblack-and-white TVcolour TVLCD screenHow did people record music in the past?-put the tapes into the recorder,then play the tape with music at one side and play the record button at the oth

4、er side to record the music onto the blank tape.How do people record music using a computer?Copy the music from a CD to the computer using recording software.The music will then be digitalized and stored in and played by an MP3 player.How do you look up a word in a paper dictionary?The words in a pa

5、per dictionary are arranged in alphabetical order(字母顺序)from A to Z.We need to look at the first letter of the word and use it to search in the dictionary.If two words start with the same letter,we look at the second letter to decide the alphabetical order.If the first and the second letters are the

6、same,we look at the third letter and so on.How do you look up a word in an electronic dictionary?We key in（键入）the word we want to look up andclick the button Enter.Then the word entry will appear on the screen.What else can be stored in your electronic dictionary?There can be a calendar,a list of ad

7、dresses and phone number,memos or a clock.More recent electronic dictionary have large memory space and some can be used as electronic books with hundreds of books stored inside.development of dictionarydictionaryelectronic dictionarydictionary,books,calendar,addresses,phone numbers,clock,music,game

8、sHow did people keep in touch in the past?-by letter/telegraph/telephoneHow do people keep in touch now?-most by mobile phonedevelopment of communicationletter/telegramtelephonebeepercellphonedesktop laptopPalmdevelopment of computerDo the electronic devices bring us advantages or disadvantages?Adva

9、ntages:meet peoples needs,improve peoples lives to some degreeDisadvantages:1)radiation may be harmful to peoples health 2)when people buy new electric or electronic devices,they throw away the old ones,which not only cause waste,but also be harmful to the environmentDiscussion:What does the TV in y

10、our home look like?How big is it?Is it in color or in black and white?What audio devices do you choose to enjoy music?What functions else do you need in an audio device besides playing music?Leading-in:development of TVblack-and-white TVcolour TVLCD screenMP3MP4tape recorderdevelopment of audio devi

11、cesTV and audio devices:a reviewReading:When did regular public TV broadcasting begin around the world?What is WebTV?What was invented in 1954?Reading:When did regular public TV broadcasting begin around the world?It began on 11 May 1923 in New York and in London on 20 August 1929.What is WebTV?It i

12、s the TV set combined with the World Wide Web.Reading:What was invented in 1954?The cassette recorder was invented in 1954.Reading:C1:True or false exercises1.Thomas Edison made the first recording of a human voice.2.Until 1972,most people used black-and-white TV.3.Satellite TV is delivered with gre

13、ater clarity than digital TV.4.The first record player was invented before 1877.5.Transistor technology was first used to receive radio programmes,and then to develop cassette recorders.6.CDs were invented about ten years before the MD player was invented.7.MP3 technology began in Germany in 1987.Di

14、gital TVsatellite TVafterfor military use19251928Shortly after 192819291951By 1967Vladimir Zworykin;Philo Farnsworth;John Logie BairdThe first wireless TV transmissionsThe first long-distance TV broadcastRegular public broadcastingThe first colour TVColour broadcasts began in the USAMost broadcasts

15、more colour TV setsEarly history of TVSatellites were used to broadcast TV in 1962.The modern age:Cable TVSatellite TVDigital TVWeb TVBegan in 1948 in the USA,but it took 50 yearsWhy superior to?When standards?How many channels?By 2004It allowswith clearer pictures.In 1989200Digital signals were bei

16、ng received by 55 percent ofWhen?How?What?In 1996,WebTV set-top boxesCombine the TV sets with WWWPlay along with game shows,respond toand chat toThomas Edison America (18471931)electric bulbrecorderEarly history of audio devices1.Who made the first recording of a human voice?2.When was the first rec

17、order player invented?3.How did it work?Tape recorders and players19311948195419791986Thomas Edison,in 1877.In 1887 by Emile Berliner.Be wound up by hand.A German company made the first tape recorderThree American scientistsand two young Japanese engineersCassette recordersThe walkman was popularWal

18、kman was added toSound goes digitalCDMDMP3198219861988The first CDsDiscman was born.Demand more CDsSmall,easy to carry,record music1987started in Germany,Become popular since 1999Music websites have sprung upReading strategy:understanding subtitlesSubtitles appear after titles and give you more info

19、rmation about the text than the titles.They can show you how the text is organized,such as in order of time,by sub-topics or by concepts.TV(In order of time)Audio devices(By types of equipment)Early history of audio devicesTape recorders and playersSound goes digitalEarly history of TVThe modern age

20、:cable TV,satellite TV,digital TVC2:Fill in the formYearEvent1877First recording of a human voice was made1925194819511954First public showings of wireless TV transmissions were made in the USA.Cable TV began in the USA;3 American scientists invented the transistor.Colour broadcasts began in the USA

21、.Invention of transistor led to the development of cassette recorders.YearEvent1958196219821987198919921996First LPs(long-play records)came onto the market.Satellites began to be used to broadcast TV.First CDs produced by using digital technology were made available.Development of MP3 technology sta

22、rted in Germany.International standards for digital TV were established.Development of MD player began.First WebTV set-top boxes came onto the market.Part D:Match the following words with the correct definitions.1.review2.uncertain3.superior4.questionnaires5.wound up6.patent7.portable8.demandinga.ab

23、le to be carriedb.asking for sth,firmlyc.a written list of questions for finding information or opinionsd.not sure,feeling doubt about sth.e.a report on sth.that shows a sequence of eventsf.a paper that proves you are the only person or company able to produce a certain product.g.made to move around

24、 itself or sth.else.h.betteredhcgfabPart E:Fill in the blanks with words given in the box.broadcasting Germany households recording 200recorders wireless compact Britain 65I was really surprised to find out that the first public showings of(1)_ TV transmissions took place way back in 1925.It took an

25、other three yearsbefore there are any regular public(2)_,first in the USA and in the following year in(3)_.Personally,I think people must have found it quite a delight when colour TV was first broadcast in 1929.However,within the next(4)_ years,peoplewould be able to choose what to match from a vari

26、etyof(5)_ different channels because of cableTV.It is reported that in 1998,66 per cent of(6)_ in the USA had cable TV.wirelessbroadcastingBritain65200householdsThe other information I got was about the evolution of audio devices,starting with Thomas Edisons first(7)_,then moving on to different kin

27、ds of tape(8)_ and finally CDs(meaning(9)_ discs),which were introducedin the 1980s.I was also really surprised tolearn that(10)_ was the birthplace of MP3,not Japan or the USA as I had Assumed they would be.These things all bring great convenience and delight to peoples lives.recordingrecorderscomp

28、actGermany 1.TV is popular in modern times.so most of us spend a lot of time enjoying a variety of TV programmesevery day.What benefit does TV bring us?Does it have bad effect on us?And why?Discussion 2.More and more people are using computers for information and entertainment.Do you think we will s

29、till need books and TVs in the future?Why or why not?3.What are the possible disadvantages of having a lot of technology in our lives?Discussion:First of all,watching TV has the value of giving people complete relaxation.Afterworking hard all day,people can forget the pressures and challenges of wor

30、k whe-n sitting in front of TV.In addition to bei-ng relaxing,TV is entertaining.As is kno-wn to all,TV offers a variety of movies,sports events and music to satisfy peoplesdemands.Meanwhile,TV helps to widen our knowledge and view by covering news.However,TV has a bad effect on people,too.For one t

31、hing,it is a big time waster.Secondly,TV has killed peoples creativityundoubtedly.While watching TV,people become receptive and unquestioning.Finallysome TV shows are harmful to children,whose mind may be filled with confusing,misleading,and violent ideas.Besides,theirvaluable time will be wasted.La

32、nguage points in ReadingFind out the meaning of these phrases1.对做出贡献(L6)2.彩色的(L13)3.在五年之内(L13)4.比好；比强(L19)5.可以使用200个频道(L21)6.全新理念(L24)7.卷；绕(L32)8.手工的；手动的(L32)9.将技术运用来发明收音机(40)10.导致(41)11.MP3的数量(54)12.涌现(57)1.Contribute to2.In color3.Within five years4.Be superior to5.Have access to 200 channels6.A c

33、ompletely new concept7.Wind up8.By hand9.Apply the technology to creat10.Lead to11.the population of MP312.Spring up1.More than two decades(L11)e onto the market(25)3.Combine the TV with the World Wide Web(25)4.Play along with game shows(L26)5.respond to the questionnaire(L26)6.Play sounds on a tape

34、 wound aroud a round object(L36)7.Buy the patent(L39)8.A portable pocket-sized cassette tape player(L42)9.Sound goes digital(L45)10.For the first time ever(49)11.Electronic device(L38)12.An electric current(L38)1,二十多年2.上市3.将电视和万文网连接起来4.参与/与.合作5.回答问卷6.在一个围绕圆形物体转的磁带上播放 声音7.购买专利8.一个便携式袖珍录音机9.声音变成数字的10

35、自从第一次以来11.电子设备12.电流1.Because of this,it is still uncertainwho invented TV.(lines 6-7)l It was my first chance to use that software to edit the video extracts.I was uncertainabout how to add background music to it.l Dont take his words seriously.He is a person of uncertain temper.l The light is uncer

36、tain未确定的易变的忽明忽暗的I am uncertain what job I am going to take in the future.我不确定将来我要做什么工作。2.Some consider digital TV to be superior to satellite TV(line19-20)l Who do you consider to be the most important person in history.l They are considering moving to another city since they get a new job there.con

37、sider:1).to think of someone or something as or to believe someone or something to be 2).consider to carefully think aboutl 如果你考虑过她所受的良好训练，你对她的成功就不会惊讶了。l 贝尔被认为是世上第一个发明电话的人。Bell is considered to have invented the first telephone.Her success is not surprising if youconsider her excellent training.be s

38、uperior to：better in quality or value“比 好,比.强”；地位高的；高傲的；自大的在我看来,手工制作的裤子要比机器加工的好.l 就这两本书而言,我认为这本比那本更好.l 这家西餐馆比我们上星期去的那一家好。In my opinion,trousers made by hand are superior to those made by machines.Of the two books,I think this one is superior to that.This western restaurant is superior to the one we

39、went to last week.l superior n.“上级”,“长者”l 我们需要一 封你们领导写的推荐信.We will need a letter of recommendation from one of your superiors.be inferior to 比差的，劣的；地位低的A captain is inferior to a major.上尉的级别低于少校。3.consumers in the USA had access to 200 channel.(line 22)access:the possibility of reaching a place or t

40、he right to use somethingl The only access to the old castle is a bridge.l Students have free access to the library in our school.l Only a few people have access tothe lecture hall to deliver a speech.4.In 1996,a completely new concept was introduced when the first WebTV set-top boxes came onto the

41、market.(lines 24-25)l come onto the market to appear or to be sold in the market Many things need to be done before a new product comes onto the market.l 当一个新的产品进入市场的时候，很快就脱销了。l 这款新的MP4面世之后，他很快就在年轻人中很流行。When a new product comes onto the market,it is soon out of stock.After this new type of MP4 playe

42、r came onto the market,it soon became popularamong young people.5.This combines the TV set withthe world Wide Web.(line 25)l combinewith/be combined with:to join something together withv理论应该和实践结合起来。v教孩子的一种好方法是把教学与快乐结合起来。A good way of teaching children is to combine teaching with pleasure.Theory shou

43、ld be combined with practice.6.At that time,the record player had to be wound up by hand and only played a record for two minutes.(lines 31-32)l wound v.&n.受伤;伤口l windv.(wound,wound)to turn or twist 蜿蜒，缠绕,上发条，卷起1.The nurse wound a bandage around my finger so that bleeding could be stopped.2.Remember

44、 to wind the clock every night before you go to bed if you do not want it to stop.3.The soldier was wounded in the battle._7.They bought the patent and applied the technology to create the transistor radio.(lines39-40)l apply v.1).to bring or put into use or operation(to)生效，应用，运用2).make a formal req

45、uest(for)申请，请求Scientific discoveries are often applied to industrial processes.I want to apply to the boss for this task.l 这项研究成果将应用于肺癌的治疗.l 我们已经向市政会申请改善住房的拨款（a home improvement grant）.The results of this research will be applied to the treatment of lung cancer.Weve applied to the council for a home

46、improvement grant.Application n.应用；申请applicant n.申请者；应征者8.and in 1988,for the first time ever,people were demanding More CDs than Lps(line 49)ever adv.1).At all times;always:一直：在所有时间；总是：It was the best result theyve ever had.2).At any time:曾经：在某一时间(常用于疑问句)：Have you ever been to Europe?3).In any way;

47、at all:以任何方式；到底（强用于疑问句）How did they ever manage?vdemand(n.v.)need,to need in order to be successfulv demand+n/pronoun/to infinitive/object clause(subjunctive mood)e.g.1)Work of this nature demands many personal sacrifices/demands a great deal of those who embark on it.2).She demanded to speak to the

48、 manager.l 教师的工作需要极大的细心和耐心.l 他要求将一切都告诉他.He demands that he(should)be told everything.The work of a teacher demands great care and patience.9.that major corporations are taking over the portable music player market with MP3 players.(Line 55-56)take over 把.从一地带到另一地,接收,接管hand over 移交The son _ the resta

49、urant from his father.Mikes father _ his restaurant to mike.took overhanded overtake over take in take up take ontake down take back take off take away1.Could you help me to _ the curtain _.2.Two hamburgers and chips _,please!3.The plane _ at 14:30 every day.4.Her eyes _a hurt expression after my wo

50、rds.5.Has the party _by extremists?6.The chest _ much room in my bedroom.7.We only _goods _if customers find quality problems within a week.8.Dont _ by his charming manner,hes completely rude.takedownto take awaytakes offtook onbeen taken overtakes uptakebackbe taken in10.the popularity of MP3 has i

51、ncreased to such a degree that(lines 53-56)l degree a point on an imaginary line used for measuring or comparing qualities,feeling,abilities,etc.v The children have different degrees of ability.v.v To what degree can they be trusted.孩子的能力高低各不相同.对他们能信任到什么程度11.Because of the popularity of MP3 players,

52、music websites have sprung up all over the Internet(lines 57-58)l spring（sprang,sprung)v.to grow or to start up quickly l spring up 突然出现，涌现，迅猛发展l Many new businesses have sprung up with the development of the Internet.l Shops selling souvenirs to the travelers soon sprang up along the riverside.l Th

53、e problem sprang up very suddenly.spring n.春天；泉水；弹簧12.Germany was the birthplace of MP3,not Japan or the USA as I had assumedthey would be.(Page 5)vt.1).accept sth.as true before there is a proof 假定，设想e.g.We cant assume anything in this case.2).pretend 装出，装作e.g.The look of innocence she assumed had us all fooled.3).Undertake;take on 开始从事，承担，呈现e.g.He assumes his new responsibilities next month.assumption n.To complete A1 and A2 on page 102 of the WorkbookTo read the article in Part A on page 106 and in Part B on page 107 of the WorkbookAssignment: