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1、考 生 信 息 栏 系 专业 级 班级 姓名 学号 装 订 线20 07 20 08 学年 第 1 学期课程名称专业英语试卷卷别A B 专业 级 班级 考试方式闭卷 开卷 本试卷共 八 大题( 6 页)，满分100分，考试时间120分钟。请在答题纸上作答，在试卷上作答无效。一、根据英文单词或词组，写出中文意思（本题共15小题，每题1分，共15分）1. Semiconductor 半导体2. amplitude 振幅3. simultaneous 同时4. slot 槽5. protocol 协议6. Bandwidth 带宽7. Coaxial 同轴8. Decode解码9. harmonic
2、 谐波10. Geostationary 地球静止轨道11. flip-flop 触发器 12. uplink frequency spectrum 上行链路的频谱 13. peak-to-peak value 峰峰值 14. home appliance 家电15. distributed system 分布式系统二、根据英文缩写，写出英文完整形式及中文意思（本题共5小题，每题2分，共10分）1. ATM 自动取款机2. WAN 广域网3. ISDN 整体服务数位网路4. ISO 国际标准组织5. PCM 脉冲编码调制三、用连线使A栏与B栏匹配 （本题共2大题，每题5分，共10分）1. Co
3、lumn A Column B(1) LAN (a) an international standards organization (2) WAN (b) a network that provides communications across country or the entire world. (3) host computer (c) a station which is used to receive and retransmit microwave signals. (4) ISO (d) a computer which is located on a network an
4、d provides services to other nodes connected to the network. (5) Microwave relay (e) a network that provides communications within specific buildings or facilities.2. Column A Column B(1) voice channel (a) one of the typical mobile communication systems(2) MSC (b) the medium used to carry calls from
5、 one point to another(3) PSTN (c) radio station used within mobile communications for transmission to mobiles or to other base stations(4) BS (d) public network which provides dial-up(拨号)access and has been primarily designed to carry voice(5) CMS (e) an interface between the radio system and the PS
6、TN, where calls to and from the mobile subscribers are switching四、选择适当的词或词组填空 （本题共5空，每空1分，共5分） 考 生 信 息 栏 系 专业 级 班级 姓名 学号 装 订 线1. The current which flows through RL_ (is equal to, equals to) the input voltage Ui divided by Ri.2. The switch, resistor and wire_ (are composed of, constitute) a circuit.3
7、. The use of mobile telephone is quite _ (familiar with, familiar to) us in our daily lives.4. ATM retains(保留)all the flexibility(灵活性)of packet mode, _(enabling, enable) only required information _ _ (to be conveyed, convey).五、选择适当的词填空 （本题共5小题，每题1分，共5分）1. The word “multimedia” is _ describe a mixtur
8、e(混合)of hardware, software and applications. A. being used to B. used C. using to2. The pulse is composed of _ states.A. one B. two C. three3. ATM transfer information _ short packets called “cells”(信元) _ a fixed length of 48 bytes plus five heads bytes.A. of, in B. in, with C. to, for4. The functio
9、n of the optical detector is to _. A. convert optical signal to electrical signalB. convert electrical signal to optical signal C. the electrical signal is applied to it5. Each channel unit in the BS is equipped _ radio transmitter, radio receiver, and control unit.A. in B. with C. by六、阅读理解 （本题共5小题，
10、每题3分，共15分）(1) Integrated CircuitIntegrated circuit, or IC is a combination of a few interconnected circuit elements such as transistors, diodes, capacitors, and resistors produced in a single manufacturing process on one and the same bearing structure, called the substrate, and intended to perform d
11、efinite function involved in converting information.The electrically interconnected components that make up an IC are called integrated elements. If an integrated circuit includes only one type of components, such as only diodes or resistors, it is said to be an assembly or set of components.The pri
12、nciple of integrated circuit elements lies in the following. A great number of “set” are produced simultaneously on a wafer. Each set contains all the components such as transistors, diodes, and resistor which are interconnected with short fine metallic stripes deposited on the wafer surface. They m
13、ake up an functional block. Each ICs of components is a ready integrated circuit. All ICs are regularly distributed on the wafer surface.ICs can be classified by function into two: circuits to be applied in digital systems and those to be applied in linear systems. The digital ICs are employed mostly in computers, electronic counters, frequency synthesizers and
