電子與通信技術(shù)專(zhuān)業(yè)英語(yǔ)Unit-I-課件1

1、劉 騁 蔡 靜 劉小芹 主編電子與通信技術(shù)專(zhuān)業(yè)英語(yǔ)（第5版）高職高專(zhuān)電子信息類(lèi)“十三五”規(guī)劃教材English on Electronic and Telecommunication Technology1、復(fù)雜長(zhǎng)句多2、被動(dòng)語(yǔ)態(tài)多3、非謂語(yǔ)動(dòng)詞多4、詞性轉(zhuǎn)換多專(zhuān)業(yè)英語(yǔ)的特點(diǎn)01Unit Basic Knowledge of ElectronicsLesson 1 Knowing the Electronic Components Unit New Wordselectronic,ilektrnikadj.電子的,電子 儀器的electronics ,ilektrniks n. 電子學(xué)，電學(xué)，

2、電子工業(yè)component kmpunntn. 成分，元件 adj. 組成的，構(gòu)成的 symbolsimbln. 符號(hào)，標(biāo)志，象征resistorrizistn. 電阻器New Wordsrestrict ristrikt vt. 限制, 約束, 限定current krnt n. 電流seriessiri:z n. 連續(xù), 系列, 叢書(shū), 級(jí)數(shù)capacitorkpsit n. 電容器charget:d n. 電荷inductorindkt n. 感應(yīng)器，電感New Wordsrestrict ristrikt vt. 限制, 約束, 限定current krnt n. 電流seriessi

3、ri:z n. 連續(xù), 系列, 叢書(shū), 級(jí)數(shù)capacitorkpsit n. 電容器charget:d n. 電荷inductorindkt n. 感應(yīng)器，電感New Wordsmagnetic mnetik adj. 磁的, 有磁性的, 有吸引力的fieldfi:ld n. 場(chǎng)diodedaiud n. 二極管valvevlv n. 電子管, 真空管transistortrnsist n. 晶體管integratedintireitid adj. 綜合的, 完整的New Wordscircuit s:kit n. 電路chiptip n. 芯片semiconductor ,semikndk

4、t n. 半導(dǎo)體silicon silikn n. 硅, 硅元素anodenud n. 陽(yáng)極, 正極cathode kud n. 陰極microphone maikrfun n. 擴(kuò)音器, 麥克風(fēng)New Wordsspeaker spi:k n. 揚(yáng)聲器, 喇叭f(wàn)use fju:z n. 保險(xiǎn)絲, 熔絲filament filmnt n. 細(xì)絲, 燈絲motor mut n. 發(fā)動(dòng)機(jī), 電動(dòng)機(jī)solenoid sulnidn. 螺線管switch swit n. 開(kāi)關(guān)Phrases and Expressionslight-emitting diode發(fā)光二極管AC(=Alternating

5、Current)交流電DC(=Direct current)直流電There are a large number of symbols which represent an equally large range of electronic components. It is important that you can recognize the more common components and understand what they actually do. A number of these components are drawn below and it is interes

6、ting to note that often there is more than one symbol representing the same type of component. Lesson 1 Knowing the Electronic ComponentsChinese Translation of Texts這些符號(hào)代表了絕大多數(shù)電子元件。能夠識(shí)別更多的普通元件以及了解他們的實(shí)際用途是很重要的。下面畫(huà)出了一些電子元件，有趣的是一種類(lèi)型的元件，常?？梢杂枚喾N符號(hào)表示。 第1課 認(rèn)識(shí)電子元器件Chinese Translation of TextsResistors Resis

7、tors restrict the flow of electric current, for example a resistor is placed in series with a light-emitting diode (LED) to limit the current passing through the LED. Fig.1-1 shows is resistor example and circuit symbol.Resistors may be connected either way round. They are not damaged by heat when s

8、oldering.Chinese Translation of Texts電阻電阻阻礙電流的流動(dòng)，例如一個(gè)電阻與一個(gè)發(fā)光二級(jí)管LED串聯(lián)來(lái)限制流過(guò)LED的電流。圖11所示為電阻實(shí)物圖和電路符號(hào)。電阻可以連接在任一回路中。他們不會(huì)因焊接高溫而損壞。Chinese Translation of TextsCapacitors Capacitors store electric charge. They are often used in filter circuits because capacitors easily pass AC (changing) signals but they blo

9、ck DC (constant) signals. Fig.1-2 capacitor examples and circuit symbol.Chinese Translation of Texts電容電容存儲(chǔ)電荷。因?yàn)殡娙菔菇涣餍盘?hào)容易通過(guò)而阻隔直流信號(hào)，所以他們經(jīng)常被用在濾波電路中。圖12為電容實(shí)物圖和電路符號(hào)。Chinese Translation of TextsInductorAn inductor is a passive electronic component that store senergy in the form of a magnetic field. An ind

10、uctor is a coil of wire with many windings, often wound around a core made of a magnetic material, like iron. Fig.1-3 Inductor examples and circuit symbol.Chinese Translation of TextsChinese Translation of Texts電感 電感是一個(gè)無(wú)源電子元件，它以磁場(chǎng)的形式存儲(chǔ)能量。電感是一個(gè)由電線纏繞了許多圈的線圈，經(jīng)常纏繞在像鐵這樣的磁材料的磁芯上。圖13為電感實(shí)物圖和電路符號(hào)。 Diodes Dio

11、des allow electricity to flow in only one direction. The arrow of the circuit symbol shows the direction in which the current can flow. Diodes are the electrical version of a valve and early diodes were actually called valves. Fig.1-4 shows Diode examples and circuit symbol.Chinese Translation of Te

12、xts 二極管 二極管允許電流僅從一個(gè)方向流過(guò)。電路符號(hào)的箭頭指示了電流能流過(guò)的方向。二極管是真空管的電子版，實(shí)際上，早期的二極管就叫真空管。圖14為二極管實(shí)物圖和電路符號(hào)。 Chinese Translation of Texts Transistors There are two types of standard transistors, NPN and PNP, with different circuit symbols. The letters refer to the layers of semiconductor material used to make the transi

13、stor. Fig.1-5 is Transistors examples and circuit symbol. Chinese Translation of Texts 晶體管 標(biāo)準(zhǔn)的晶體管有兩種類(lèi)型，NPN型和PNP型，他們的電路符號(hào)不同。字母（N和P）意味著制造晶體管的半導(dǎo)體材料的不同。圖15為晶體管實(shí)物圖和電路符號(hào)。Chinese Translation of Texts Integrated Circuits (Chips) Integrated Circuits are usually called ICs or chips. They are complex circuits

14、which have been etched onto tiny chips of semiconductor (silicon). The chip is packaged in a plastic holder with pins spaced on a 0.1 (2.54mm) grid which will fit the holes on stripboard and breadboards. Very fine wires inside the package link the chip to the pins. Fig.1-6 Integrated Circuits exampl

15、e.Chinese Translation of Texts 集成電路（芯片） 集成電路通常被稱(chēng)為ICs或芯片。他它們是固化在微小的半導(dǎo)體（硅）芯片上的復(fù)雜電路。該芯片被封裝在一個(gè)塑料固定物上，引腳間距0.1（2.54mm），這樣的柵格適合帶形板和面包板的孔距。在封裝里面用非常纖細(xì)的導(dǎo)線連接芯片的引腳。圖16為集成電路實(shí)物圖。Chinese Translation of Texts Light Emitting Diodes (LEDs) LEDs emit light when an electric current passes through them. LEDs must be con

16、nected the correct way round, the diagram may be labelled “a” or “+” for anode and “k” or “-” for cathode (yes, it really is “k”, not “c”, for cathode!). The cathode is the short lead and there may be a slight flat on the body of round LEDs. Fig.1-7 is LED examples and circuit symbol.Chinese Transla

17、tion of Texts 發(fā)光二極管（LEDs） 當(dāng)電流流過(guò)LED時(shí)，它發(fā)出光。 LEDs必須連接正確的回路，電路圖中可以標(biāo)“a”或者“”表示陽(yáng)極，標(biāo)“k”或者“-”表示陰極。陰極是短的引腳并且在LEDs圓形體內(nèi)可能是微小扁平的那一端。圖17為L(zhǎng)ED實(shí)物圖和電路符號(hào)。Chinese Translation of Texts Other Electronic Components Fig.1-8 is other electronic components examples and circuit symbol.Chinese Translation of TextsChinese Trans

18、lation of Texts 其他的電子元件 圖1-8為其他電子元件的實(shí)物圖和電路符號(hào)?？勺冸娮杵鞣澍Q器（麥克風(fēng)）揚(yáng)聲器保險(xiǎn)絲燈泡/燈絲電動(dòng)機(jī)螺線管開(kāi)關(guān)NotesThere are a large number of symbols which represent an equally large range of electronic components.這些符號(hào)代表了絕大多數(shù)的的電子元件。1NotesIt is important that you can recognize the more common components and understand what they act

19、ually do.能夠識(shí)別更多的普通元器件以及了解他們的實(shí)際用途是很重要的。2NotesA number of these components are drawn below and it is interesting to note that often there is more than one symbol representing the same type of component.下面畫(huà)出了許多電子元件，你會(huì)發(fā)現(xiàn)一個(gè)有趣的現(xiàn)象一個(gè)符號(hào)可以代表相同類(lèi)型的元件，而且這樣的符號(hào)不只一個(gè)。3NotesThey are complex circuits which have been e

20、tched onto tiny chips of semiconductor (silicon). The chip is packaged in a plastic holder with pins spaced on a 0.1”(2.54mm) grid which will fit the holes on stripboard and breadboards.他們是固化在微小的半導(dǎo)體（硅）芯片上的復(fù)雜電路。該芯片被封裝在一個(gè)塑料固定物上，其引腳間距為0.1英寸（2.54mm），這樣的柵格將適合帶形板和面包板的孔距。4NotesA number of these components

21、are drawn below and it is interesting to note that often there is more than one symbol representing the same type of component.下面畫(huà)出了許多電子元件，你會(huì)發(fā)現(xiàn)一個(gè)有趣的現(xiàn)象一個(gè)符號(hào)可以代表相同類(lèi)型的元件，而且這樣的符號(hào)不只一個(gè)。5Exercises 1.Write T (true) or F (false) beside the following statements about the text.a. One symbol represents a type of

22、 component.b. Resistors are damaged by heat when soldering.c. Capacitors are not often used in filter circuits.d. Both capacitor and inductor are passive electronic components.e. Inductors store electric charge.f. Diodes allow electricity to flow either one direction.g. Diodes also are called valves

23、.h. The symbol of NPN and PNP transistors is same.i. ICs are complex circuits which have been etched onto tiny chips of semiconductor.j. LED is one type of diodes.Exercises 1.Write T (true) or F (false) beside the following statements about the text.a. One symbol represents a type of component. b. R

24、esistors are damaged by heat when soldering.c. Capacitors are not often used in filter circuits.d. Both capacitor and inductor are passive electronic components.e. Inductors store electric charge.f. Diodes allow electricity to flow either one direction.g. Diodes also are called valves.h. The symbol

25、of NPN and PNP transistors is same.i. ICs are complex circuits which have been etched onto tiny chips of semiconductor.j. LED is one type of diodes.F（L5） F（L10） F（L12） T（L16） T（L16） F（L21） T（L23） F T（L30）TExercises2.Match the following terms to appropriate definition or expression.a. ACb. DCc. Semic

26、onductor d. IC e. field 1. A tiny “chip” containing many individual circuits which work together to perform a function.2. A material that is neither a conductornor an insulator.3. The direction of current is constant.4. A portion of space surrounding a body in which the forces due to the body can be

27、 detected.5.it changes polarity periodically.Exercises2.Match the following terms to appropriate definition or expression.a. ACb. DCc. Semiconductor d. IC e. field 1. A tiny “chip” containing many individual circuits which work together to perform a function.2. A material that is neither a conductor

28、nor an insulator.3. The direction of current is constant.4. A portion of space surrounding a body in which the forces due to the body can be detected.5.it changes polarity periodically.Exercises3.Fill in the missing words according to the text.a. In the common components, may be connected either way

29、 round.b. is a passive electronic component that store electric chage.c. Inductors store energy in the form of .d. Diodes allow electricity to flow in direction.e. The of the LED is the short lead and there may be a slight flat on the body of roundLEDs.Exercises3.Fill in the missing words according

30、to the text.a. In the common components, resistors may be connected either way round.b. Capacitor is a passive electronic component that store electric chage.c. Inductors store energy in the form of a magnetic field.d. Diodes allow electricity to flow in only one direction.e. The cathode of the LED

31、is the short lead and there may be a slight flat on the body of roundLEDs.Exercises4. Translate following paragraph into Chinese.a.Modern advances in the fields of computer, control system, communications have a close relationship with electronics.Exercises4. Translate following paragraph into Chine

32、se.a.Modern advances in the fields of computer, control system, communications have a close relationship with electronics.a.計(jì)算機(jī)、控制系統(tǒng)和通信領(lǐng)域現(xiàn)代的進(jìn)步和電子學(xué)有著密切的關(guān)系。Exercises4. Translate following paragraph into Chinese.b.The field of electronics includes the electron tube, transistor, integrated circuit and so on.Exercises4. Translate following paragraph into Chinese.b.The field of electronics includes the electron tube, transi