《英語》(職業(yè)模塊-工科類)unit-4課件

1、工科類英 語職業(yè)模塊Unit Four 3G TechnologyWarm UpListening and SpeakingReading3G TechnologyHighlightsJust for FunSection A Warm UpHere are some applications of 3G Technology. Please match the terms in Column A with their meanings in Column B.Warm-up A1. unlimited broadband Internet access2. video call 3. mob

2、ile phone TV4 wireless search5. mobile phone music6. mobile phone online game7. mobile office8. mobile location services9. mobile phone reading10. mobile phone shopping B a. 移動定位服務 b. 手機購物 c. 視頻通話 d. 手機網(wǎng)游 e. 手機電視 f. 手機辦公 g. 無線搜索 h. 寬帶上網(wǎng) i. 手機音樂 j. 手機閱讀Section B Listening and SpeakingDialogue StudyAc

3、tivitiesDialogue (Z=Zhang Jun G=Guo Min)Z: I am a user of China Mobile, and want to switch to third-generation service.G: As a matter of fact, 3G service of China Mobile isnt the most advanced one in our country, have you ever thought about changing a new company? Z: No, I havent. Im an old client o

4、f China Mobile, and I think their services are good enough. G: Yes, its true. China Mobile is the worlds biggest wireless operator, which has extended its services to most of China. Z: Thats right. China Mobile is changing our life. G: Ha ha. I heard that China Mobile will introduce wide variety of

5、new phones for Chinas home-grown 3G service. Whats more, they all have fashionable look and powerful function.Z: Really? Thats great. I want to choose one for me.New Words Phrases NotesTo be continuedswitch v. n.變更，轉換開關generationn.一代advancedadj. 先進的clientn.顧客，客戶wirelessadj.無線的operatorn. 經營者extendv.擴

6、展New Wordsintroduce v. 引進varietyn.種類home-grownadj. 本國產的fashionableadj.時尚的powerfuladj.強大的functionn. 功能New WordsPhrasesthird-generation (3G) 第三代移動通信技術 as a matter of fact 事實上1. As a matter of fact, 3G service of China Mobile isnt the most advanced one in our country, . 事實上，中國移動的3G服務并不是國內最新的服務技術 as a m

7、atter of fact 1. 用來加強語氣或表示強調，意為：事實上； 其實。如：I dont have a car. As a matter of fact, I cant drive. 2.用來引出與聽話人期待相反的事實，意為：事實上恰恰相反。如：He doesnt mind. As a matter of fact, hes very pleased. 注：以上用法中的as a matter of fact 也可以換成in fact而意義不變。2. Whats more, they all have fashionable look and powerful function.然而，他

8、們既有時尚的外表，又有強大的功能。whats more 表示遞進，是“然而/還有”的意思，獨立使用，more后面NotesTo be continued不加詞和句子。既可以放句首，也可以放句中。放句首時，Whats more, （然而怎樣怎樣）放句中時，.，whats more, .（，還有/然而，）例如: Whats more, he only knew how to spell apple!whats more可以翻譯成況且，更進一步來說 。 NotesActivitiesWork AlonePair WorkListen to the dialogue, and decide wheth

9、er the following statements are true (T) or false (F).( ) 1. China Mobile has the most advanced 3G service.( ) 2. Zhang Jun are satisfied with China Mobiles services.( ) 3. Guo Min finally persuaded Zhang Jun to change a new company.Work AloneKey1. T2. F3. FFirst listen to and repeat the dialogue, t

10、hen role play it in pairs.Pair WorkSection C ReadingText OneText TwoPost-Reading 3Pre-Reading1While-Reading2 Text OnePre-readingWork in groups to discuss the following questions.1. What are your feelings with 3G mobile phone?2. What changes do you think 3G technology will bring to us?While-reading “

11、3G” or “third-generation” is the third generation mobile communication technology for short. 3G services can simultaneously transmit voice (call) and data information (e-mail, instant messaging, etc.). High bandwidth is one of the selling points of 3G. While the maximum bandwidth for a stationary 3G

12、 device is 2.05 megabytes (MB), when you are moving slowly (such as walking), this drops to 384 kilobytes (KB). When you and your device are moving at high speeds (such as in a car), the maximum bandwidth drops to 128 KB. However, this is still 10 times faster than the maximum bandwidth of moving 2G

13、 devices. This allows you quick and easy access to all of your favorite online multimedia and Internet tools, just like you were at home on a computer. Advantages of 3GTo be continuedAnother advantage of 3G technology is that it can utilize packet-based Internet protocol connectivity. This means you

14、r mobile device will always be online and ready for Internet access. However, you will not actually pay for the connection until you start sending or receiving data packets, such as sending an e-mail or looking at a webpage. Some 3G devices are also designed to automatically pick up the closest, fre

15、e-to-access Wi-Fi signals, in which case, you wont have to pay anything for Internet. New Words Phrases and Expressions NotesWhile-readingTo be continuedsimultaneouslyadv. 同時地transmitv.傳輸instantadj. 立刻的，馬上的bandwidthn. 帶寬maximumadj.最大的stationaryadj.不動的megabyten.兆字節(jié)kilobyten.千字節(jié)allowv.允許，準許utilizev. 利

16、用，使用New Wordspacketn. 信息包protocoln. （數(shù)據(jù)傳遞的）協(xié)議connectivityn. 連通性webpagen.網(wǎng)頁automaticallyadv.自動地signaln.信號 New WordsPhrases and Expressionsfor short 簡稱，縮寫instant messaging 即時通訊 selling point （吸引顧客的）產品 特色，賣點at high speed 以高速packet-based 基于分組的be ready for 為做好準備pay for 為付錢pick up 獲得free-to-access 免費訪問 Ho

17、wever, you will not actually pay for the connection until you start sending or receiving data packets, . 然而，不接受或發(fā)送資料，是不用為連接付費的。1.however作副詞用時，表示“然而；但是”，可以位于句首、句中和句末；位于句首時，要用逗號與句子其它部分隔開；位于句中時，其前后都要用逗號；位于句末時其前用逗號分開。 例如: She felt ill. She went to work, however, and tried to concentrate. however與but兩者都做

18、“但是，然而”講，而且都引出并列句。從語義上看，but所表示的是非常明顯的對比，轉折的意味較however要強。從語序上看，but總是位于所引出的分句之首，而however卻可位于句首、句中和句末，同時從標點符號上看，but之后一般不得使用逗號，而however則必須用逗號與句子其它部分分開。例如： I thought those figures were correct. However, I have recently heard they were not. however的其他用法however可以作連詞，表示“無論以何種方式，不管怎樣”，引導讓步狀語從句。例如： You can tr

19、avel however you like.NotesTo be continued2. not until / till意為“直到才”，主句常用終止性動詞，表示until /till所表示的時間一到，該動作就發(fā)生。如：He didnt go to bed until / till eleven last night.昨天夜里他直到十一點才上床睡覺。注：not until放在句首時要用倒裝語序 如果要放在句首，只能用until而不能用till 強調結構中也常常出現(xiàn)not until結構，常見句型為：It is / was not untilthat。如：She didnt find me un

20、til I called her from behind.改為強調結構：It was not until I called her from behind that she found me.注：但在強調句型中，not until置于句首構成倒裝句以及until放在句首時，均不能用till替換until。例如：Until I was 20 I had never been away from my hometown.NotesPost-readingKeys1. F 2. F 3. T 1. supply 2. bill 3. support 4. transfer 5. operator 6

21、. data 1. are referred to as 2. amount of 3. stand for 4. set up 5. on the move 1. 中國移動WAP代表中國無線應用協(xié)議，通常被稱為“移動互聯(lián)網(wǎng)”。2. 由于電話的屏幕比較小，網(wǎng)頁上的內容都很基礎，所以網(wǎng)頁瀏覽很有效率，下載也很快。3.大多數(shù)的移動電話運營商都提供中國移動WAP服務。To be continuedPost-readingKeys4.WAP推出以后，人們只要撥一個特殊的WAP號碼，就能從瀏覽器上獲得所需要的信息。5.移動電話裝好之后，你只需要進入你手機運營商的WAP首頁就可瀏覽網(wǎng)頁內容。Reading

22、1Keys2 Text Two GPSWhat is GPS? The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the US Department of Defense. GPS was originally intended for military applications, but in the 1980s the government made the system a

23、vailable for civilian use. GPS works in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or setup charges to use GPS. To be continued ReadingHow it works? GPS satellites circle the earth twice a day in a very precise orbit and transmit signal information

24、to the earth. GPS receivers take this information and use triangulation to calculate the satellite with the time it was received. The time difference tells the GPS receiver how far away the satellite is. Now with distance measurements from a few more satellites the receiver can determine the users p

25、osition and display it on the units electronic map.To be continued ReadingA GPS receiver must be locked on to the signal of at least three satellites to calculate a 2D position (latitude and longitude) and track movement. With four or more satellites in view, the receiver can determine the users 3D

26、position (latitude, longitude and altitude). Once the users position has been determined, the GPS unit can calculate other information, such as speed, bearing, track, trip distance, distance to destination, sunrise and sunset time and more.New Words Notes Reading Phrases and ExpressionsTo be continu

27、edglobaladj. 全球的positionv.n.給定位位置，方位systemn. 體系，系統(tǒng)satelliten.衛(wèi)星navigationn.導引，導航placev.放置，安置orbitn.軌道originallyadv.起初，原來intendv.計劃，打算，想要militaryadj. 軍事的New WordsTo be continuedcivilianadj. 民用的subscriptionn.訂閱費feen.（加入組織或做某事付的）費setupn.安裝chargen.費用preciseadj.精確的receivern.接收機triangulationn.三角測量calculat

28、ev.計算measurementn. 長度，尺寸New Wordsdeterminev. 確定，測定unitn.裝置electronicadj.電子的latituden.緯度longituden.經度trackv.n.監(jiān)測軌道altituden.高度bearing n.壓力，推力destinationn.目的地，終點New WordsPhrases and ExpressionsGPS (the Global Positioning System) 全球定位系統(tǒng)satellite-based基于衛(wèi)星的make up of 由組成，由構成the US Department of Defense 美國國防部intend for 打算給（某人）或作（某種用途）available for 可用于lock on 用雷達自動跟蹤in view 看得見GPS was originally intended for military applications, but in the 1980s the government made the system available for civilian use. 全球