电子与通信专业英语第二版李霞单词

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电子与通信技术专业英语Unit I-2

对电流的阻力叫电阻, 用字母符号R表示。电阻的单位是欧姆，常用Ω表示。1欧姆的定义是：当加到导体上的电压为1伏特时，将导体中的电流限制为1安培所需的电阻值。较大的电阻值常用千欧( kΩ )和兆欧（MΩ）表示。
The relationship between volts, amperes, and ohms can be represented by “ Ohm‟s Law”. Ohm‟s Law states that the ratio of the voltage between the ends of a wire and the current flowing in it is equal to the resistance of the wire. Now, we can say that when a given voltage is applied across the ends of the wire, an electric current always flows along it, and the value of this current depends on the resistance of wire (as shown in fig.2-1).
伏特、安培和欧姆之间的关系可用欧姆定理表示。欧姆定律描述为：导线两端电压与流过导线的电流的比是导线的电阻。现在我们可说，当在导线两端施加一定电压时，导线中总是有电流，电流的值取决于导线的电阻（如图2-1所示）。
Exercises
1.Write T (true) or F (false) beside the following statements about the text.
电压这个术语（用字母符号U表示）常用来表示电位差和电动势。度量电压的单位是伏特。使1安培电流流过电阻为1欧姆的导体所需的电动势定义为1伏特。

电子与通信专业英语-电子工业出版社-李霞翻译

电子与通信专业英语-电子工业出版社-李霞翻译Unit 13（1）微积分在解析几何的帮助下，被证明能够有效的解决许多早先无法解决的问题。

（2）在17世纪的许多重大数学发明中，毫无疑问最杰出的就是微积分。

（3）当法国数学家奥古斯丁*路易斯*柯西发展相互一种可接受的极限理论，并由此定义了连续性，微分和极限概念下的定积分，这成为1821 年数学史上的巨大飞跃。

4）数学分析是高等数学中的最重要分支中的一个，它的主要目的是研究变量和他们之间的关系。

5）自然数学或技术科学的一个主要目的是建立考虑的过程中的变量之间的关系并用数学描述。

6数学方法是物理学、机械学、工程学和其他自然科学的基础，对所有学科来说，数学是有利的理论和应用工具，没有数学就不可能科学计算工学和技术。

Unit 21）描述精确的随机变量的分析需要许多信息，而且描述两个或以上变量的联合发布需要更多的信息2）二项分布和泊松分布在所有离散分布中应用最广泛的，由于他们的概率分布在统计性质控制中的重要（作用），这种概率分布对工程人员来说是非常重要。

3）对于任何随机变量，在两个点分布函数的差异是随机变量取这两点间（或端点）的值的概率4）一般来说，随机事件的概率P在进行大量的重复实验时能以均值来确定，该事件发生的次数是p 乘以实验次数5）在统计学中，将任何观察过程叫做实验是一个习惯6）如果在特定的现实情况下，某时间确定不能发生，那么称之为不可能事件Unit 34）当运放周围有反馈时，输入阻抗和反馈阻抗的比值决定了电路的闭环增益6）运放是个极为高效和通用的设备，它的应用范围覆盖了广阔的电导工业满足了特殊传输函数，模拟器件，模拟计算和特殊系统设计的需要。

Unit 41）如果一个线性系统的输入是正弦波，输出将也是正弦波，并且输出与输入频率相同。

2）正如我们能将任何信号解释成一系列尺度位移变换的脉冲和一样，我们也能将任何信号分解成一系列不同频率的正弦（尺度和位移变换）的和3）—个信号被公式化成一个包含或多个变量的函数，并用于传达物理现象本质中的信息4）采样定理说明：如果一个连续信号x（t）的最高频率f max,那么如果采样频率f s大于2f max，则x（t）可以由它的采样序列x（nT）完全恢复‘5）事实上，如果离散时间序列是绝对可和的，那么在连续事件情况下，他的光谱就是一个有限且连续的函数。

电子与通信专业英语第二版李霞课后翻译

自然数学或技术科学的-一个主要目的是建立考虑的过程中的变量之间的关系并用数学描述。
y(6> Mathematical methods lie in the foundation of physics, mechanics, engineering and othernatural sciences. For all of them mathematics is a powerful theretical and pratical tool withoutwhich no scientific calculation and no enineering and technology are pssilie
一个信号被公式化成一一个包含或多个变量的函数，并用于传达物理现象本质中的信息
Y(4) Nyquist sampling theorem states that if the highest-frequency componentofa CT signalx(t) is fmax, then x(t) can be recovered from its sampled sequence x(nT) if the sampling frequencyfs is dosldsibeealons maavaenaaomqiamgasuvaon larger than 2fmax.
(4)When feedback is used around an operational amplifier, the closed loop gain of the circuitis
determined by a ratio involving the input and feedback impedances used.

电子通信专业英语单词

物理量的幅值 derivative 导数 derive 推导 derived 得到 detector 检测仪 determination 测定 determine 决定 develop insight into
通过对…的深
刻了解 deviate from 偏离 deviate 偏离 devices 装置 devoted 投 DFT 离散型福利叶变换 diagnostic 诊断 diameter 直径 dictate 口授 dielectric constant
结构 circuitry 电路 classified 分类 climate 思潮 clocked 时钟控制 clocked 锁存 clockwise 顺时针 close proximity 接近 closed-loop 闭合环路 closed-path 闭合路径 closethe relay contact
连续性方程 continuously 持续 continuous-time 时间上连续 contour 轮廓，等高线 contrast 对比度 contribution 权、重值 contuct 触点 convenient packaging
简易封装 convention 协定，习俗，习惯 convention 协定 converge 收敛 converted 转换 convolution 卷积 coordinated 协调的, 同等的
conductor 导体 conduit 水管，管道 configuration 结构 conflict 斗争，冲突 consequently 因而 conservation 保持 conservation 守恒 consist of 由……组成
constant group delay

电子与通信专业英语第二版李霞课后翻译

active有源的Binomial dist二项式分布conceptual概念的discrete离散的fluctuation波动inflection变形additivity叠加性buffer.缓冲器congestion拥塞discretize使离散的formalism形式infrared红外线的advocate主张者by means of依靠consensus一致同意disperse分散formula公式，规则inherent固有的algebra代数学by-product副产品，出乎意料的结果consist of由什么组成disruptive使破裂的Fourier series傅里叶级数integration积分algorithm算法calculus微积分constituent组成的distort歪曲freak反常的intensity亮度alleviate减轻capacitor电容器contour轮廓distortion扭曲fulcrum杠杆的支点interdisciplinary跨学科的对比度增强distributive分配的fuzzy模糊的interference干扰alphabetical字母的carrier载波contrast enhancemenalternative另一个可选择的cascade串联converge收敛disturbance干扰GaAs砷化镓interpratation说明解释amendment改善cautery烙convolution卷积DLC数据链路控制gate门intuitive直觉的amplitude振幅CCSA中国通信标准协会coordinate坐标edge边缘generator发生器inverting input反相输入端AMPS高级移动电话系统CD光盘cosine余弦electributive心电图give rise to引起investigate调查，研究antenna天线CDMA码分多址couple耦合electromagnetic电磁的GPRS通用分组无线业务ionosphere电离层aperiodic非周期的CDMA码分多址cumulative累加的electromagnetic电磁的gray level灰度IP互联网协议approximation近似值cellular细胞的curriculum课程emulate模仿ground使接地jeopardize危害arbitrary任意的channel频道cut-off frequency截止频率encapsulate封装harmonic谐波JPEG联合图像专家组argument自变量channel信道decimal part小数部分encoder译码器hemorrhage出血LAN局域网arithmetic算术channelizatio信道化deficiency缺乏不足encompass包围heterogeneity不同成分latch闭锁artificial intelligence人工智能circuitry电路，线路degradation退化enormous巨大的hierarchical分等级的lay the foundation给。

电子信息英语重点李白萍

Unit 9Passage A单词：digital signal、real-world、representation、convert…into、analog-to-digital converter、digital-to-analog converter、sample and hold circuit、sampling intervals、sampling period、sampling frequency、band-limited signal、aliasing occurs、low pass filter、acquisition time、quantization level、quantization errors、true sample level、quantization step、zero order hold、undersampling、spectral inversion、microprocessor、without breaking the budget、time to market、power dissipation、price/performance、updated、bus interfaces、glue logic、functional accelerators、rules…out、encumbered with、compatibility、be bound to句子：1、This process......by the code.(113页) 2、Depending on the……of the signal.(113页) 3、Field-Programmable Gate Arrays (FPGA)……fast time to market..(114页) 3、However,for while……all but rules them out.(115页) 3、More and more,these……real time market place.(115 Passage B单词：refers to、integrated circuit、incorporate、printed circuit board、features句子：1、While traditional processors……to access them.(118页) 2、The specific hardware……third party software.(120页) 3、While some of these boards are......such as a personal computer.(121页)Unit 17Passage A单词：resolution、be made up of、gray scale levels句子：1、A digital image is made up of……to that pixel.(204页) 2、When an image uses only……entire available range.(204页) 3、The locations and colors……that are nearest.(205页) 4、One simple compression scheme……additional copies needed.(206页)Passage B单词：significant correlation、principal components、procedure、transformed bands、vector quantization、derived、iterative、decoder、takes…compares、fractal、duplication、moderate 句子：1、A more implemental……for the original image.(209页) 2、There are two general……much better compression.(210页) 3、In image processing,a procedure called......bands are uncorrelated.(210页) 3、The procedure also provides a ……new transformed bands.(210页) 4、Based on Mandelbrot sets ……without regard to rotation and scale.(211页)Unit 19Passage A句子：1、Within a communication system……for the information signal.(227页) 2、The optical carrier may be modulated……than digital modulation.(228页) 3、Figure 19.2 shows a block schematic……noise bandwidth reduction.(228页) 4、Passage B句子：1、At present,the bandwidth……is possible.(233页) 2、（f）、（i）段（234页）Unit 22Passage A句子：1、To keep pace with this……to verify correct operation.(269页)Passage B单词：peripheral、solution、volatility、paced、deep submicron era、facilitate、issues、to the point 句子：1、GA process technology……50,000 gates.(277页) 2、What is fueling the ……ASICs in many applications?(278页)。

电子与通信工程专业英语Unit 2

conductor is one ampere when the voltage applied to the conductor
电阻
假若将电池连接在导电材料上，一定数量的电流将流过此材料，流过材
料的电流取决于电池的电压、材料的截面积和材料自身的电阻率。对电流的
阻力叫电阻，用字母符号R表示。电阻的单位是欧姆．通常用表示。l欧姆的
定义为：当加到导体上的电压为l伏特时，将导体中的电流限制在1安培所需
要的电阻值。
Resistor, Capacitor and Inductor
Unit 2 Resistor, Capacitor and Inductor
is one volt. Larger amounts of resistance are commonly expressed in kiloohm (KΩ) and in megohm (MΩ).
电容器
电能可以储存在电场中，能够储存电能的装置叫电容器。电池被连接在两个金属板上，电荷将经
过很短的流动而汇集在一个电极板上。假若断开电池，电容器将保持电荷以
及与电荷相关的电压。
Resistor, Capacitor and Inductor
Unit 2 Resistor, Capacitor and Inductor
Unit 2 Resistor, Capacitor and Inductor
Resistor，Capacitor and Inductor
Translation Reading More Translating skills Text
Resistor, Capacitor and Inductor
A coil of many turns will have more inductance than one of few turns. Also if a coil is placed on an iron core its inductance will be greater than it was without the magnetic core. The unit of induct-

电子信息专业英语(第二版)(李白萍)章 (9)

Unit 9 Digital Signal Processing 1. The essentials of analog-to-digital and digital-
to-analog conversion
The first essential step in analog-to-digital (A/D) conversion (as shown in Figure 9.1) is to sample an analog signal. This step is performed by a sample and hold circuit, which samples at regular intervals called sampling intervals. The length of the sampling interval is the same as the sampling period, and the reciprocal of the sampling period is the sampling frequency fs. According to the Nyquist theorem, a signal with a maximum frequency of W Hz (ignal) must be sampled at least 2W samples per second to ensure accurate recording. When this minimum is not respected, distortion called aliasing occurs. Aliasing causes high frequency signals to appear as lower frequency signals.

电子与通信专业英语(第2版)[李霞][电子教案]

本句中not (neither)…nor…，表示“既不……也不……”，for one‟s own sake作“为了它自己的好处”解。因此，本书既不是教授学生解题方法与技巧的汇总，也未以数学本身所要求的严谨方式编写。
Unit 1 - Text(7)
Notes
[5] As a result of the widening of access opportunities, particularly in the United Kingdom, there is increasing heterogeneity in background knowledge in mathematics of students entering degree courses in engineering.
② 广泛使用被动语态，强调所论述的客观事物。
[例2] Chapters 7 and 8 are devoted to the calculus of functions of one variable and, recognizing again the mixed background knowledge in mathematics of the students, the basic ideas and techniques of differentiation and integration are reviewed in Chapter 7.
微分
离散的方程式；等式赋值；值的计算 adj. 指数的，形式 n. 积分
异种，
Unit 1 - Text(2)
limit linear 性的） logarithmic matrix oscillatory sequence statistics trigonometric 法的 variable vector [5imit] [5iniE] n. adj. 极限线性的（nonlinear，非线

第12章电子信息类专业英语第二版课本-李白萍省名师优质课赛课获奖课件市赛课一等奖课件

Unit Five ISDN
While these scenarios may sound idealistic and futuristic, they are very real possibilities with the implementation of ISDN. More than 100 ISDN trials or service implementations comprising more than 100,000 lines already exist today in Canada, England, France, Japan, the United States, Germany, and other countries.
Unit Five ISDN
Imagine a network that would bring simultaneous voice and data applications to the home. A central computer could control telephone ringing, temperature, lighting on a room-by-room basis, and the operation of home appliances. This computer could be controlled remotely by the user via the network. Other services might include call forwarding, call waiting, and special telephone ring signals, all tailored dynamically by the user depending upon the telephone number of the calling party. Two-way television and easy access to data and video services could all be available. Banking, insurance, and utility companies could design applications to take advantage of this network to provide better and more efficient service to the customer in the home.

电子信息与通信工程专业英语期末必考单词

AC(Alternate Current ) 交流active devices 有源器件adapter 适配器aeronautics 航空术.航空学agency 代理处，代理，中介ampere 安培ancestor n.祖宗，祖先anisotropic 各向异性的Anthenian n.雅典人adj.雅典的，雅典人的appliance 工具设备装置仪表approximate 近似Associative Law 结合律astronautics 太空航空学attenuation 衰减automotive 汽车的.自动推进的back haul 迂回信程。

空载传输backward-compatible 反相兼容battery 电池binary 具有两个的.二进制的bipolar 双极型Boolean algebra 布尔代数capacitor 电容器cathode-ray oscillograph 阴极射线示波器charge 电荷费用主管cheetah n.猎豹chop up 切开circuit switching 电路交换coexistence 共存combinational 组合的Commutative Law 交换律component 成分condenser 冷凝器conduction current 传导电流conductivity 传导性conductivity 传导率conflict 斗争，冲突constitutive relation 本构关系continuity equation 连续性方程contour 轮廓，等高线convention 大会.协定.习俗.惯例convergence 集中，收敛，融合coulomb 库仑courier 送快信的人，旅行从仆culminate 达到最高潮达到极点current 涌流cyber terrorism 网络DC(Direct Current) 直流delay 延迟diameter 直径dielectric 电介质dielectric constant 介电常数digital 数字的.计数的displacement current 位移电流Distributive Law 分配率divergence theorem 散度定理diverse 不同的.变换多的dot-coms 网络企业Dow-Jones 道·琼斯ecommerce 电子商务Egyptian 埃及的，埃及人的，埃及人electricity 电电力electrolysis 电解electromechanical 电动机械的.机电的.电机的Electronics 电子学电子工业Electronics 电子emf 电动势encryption 编密码envision 想象预见equivalent resistance 等效电阻even function 偶函数farad 法拉fidelity 保真度Filp-flop 触发器finite-duration 有限长时间flash 公司开发的动画编辑工具flux 流量，通量变迁Fourier series 傅里叶级数Gibbs phenomenon Gibbs现象glow discharge 辉光放电GPRS 通信无限分组业务gravitational 重力的heliograph 日光仪hexadecimal 十六进制的high-fidelity 高保真HSDPA 告诉下行链路分组接入impetus 动量动力in escess of 超过，较....为多incandescent 白热的inductance 电感系数instrumentation 实用一起insulator 绝缘体integral 积分Integrated cricuits 集成电路Interface Message Processors借口信息处理机IC(intergrated circuit )集成电路interoperability 互用性，协同工作的能力interoperability testing互用性测试，合作共事性测试interval 间隔invariant 不变的inverter 变换器.倒相器.反演器.‘非’门isotrotric 等方向性的LSI(large-scale integration)大规模集成电路laser 激光leap 跳，跳跃，飞跃LED(light-emitting diodes)发光二极管localize 使局部化loudspeaker 扩音器low-bandwidth 窄带magnetic core 磁芯Magnetic Resonance Imaging磁共振成像mainlobe 主瓣maser 微波激射器message switching 报文交换meteorologic 气象的.气象学microwwave tube 微波管miniature tube 微型管miniaturization 小型化monopoly 垄断negative 否认的.否定的.阴极.负的NFC（Near Field Communication）近距离无线通信non-recursive 非回归的Norton`s Theorem 诺顿定理number system 计数制OFDM 正交频分复用ohm 欧姆optimize 使最优化oscillatory 摆动的passive devices 无源器件PCS（Personal CommunicationsService）个人通信服务PDA（Personal DigitalAssistance）掌上电脑PDC(Packer Data Cellular)分组数据蜂窝pervasive 普遍深入的Phoenician 腓尼基的，腓尼基人的，腓尼基人photovoltaic 光电的physical 自然的picofarad （电）皮（可）法拉plug in 插上电源polarity 极性porosity 多孔性.有孔性position vector 位失positive 积极的.阳极的.正的potential difference 电位差printed circuit 印制电路prioritize 把...区分优先次序profile 剖面.侧面.外形.轮廓Programmable Logic Controller(PLC) 可编程逻辑控制器QoS(Quality of Service) 服务质量RADAR 雷达ratification 批准recursive 回归的refinement 精致，精巧regional 地方的，地域性的regulatory 调整的regulatory 调整的re-indexing 改变符号relative permeability 相对磁导率repercussions 反响resistor 电阻器ripple 波纹RTT(Radiation TrackingTransducer) 无线电传输技术sabbatical 学术假期scalar 数量，数量的seismic 地震的seismologic 地震学semaphore 信号灯semiconducting material 半导体材料semiconductor 半导体sensory 感觉的sequential 时序的shackle 束缚sidelobe 旁瓣skeptics 怀疑学派smeared 拖尾的solenoidal fields 螺线管磁场sparse matrice 稀疏矩阵Sprint 美国著名的通信公司stall 停转，停止Stocks"theorem 斯托克斯定理storage 储藏库sub-optimum 为达最佳指标的Sumerology 苏美尔学superposition 重合Superposition Theorem 叠加定理symmetry 对称Tanzania 坦桑尼亚taper 逐渐变细tapered 锥形的，减缩的Telecopier 远程复印机Telenet 远程通信网tensor 张量，张肌terminology 术语的thermoelectricity 热电温差电Thevenin`s Theorem 戴维南定理tone 音调.音质.语调trade-off 交换transistor 晶体管transistor 晶体管transition 转变，跃迁triode 三极管truncate 把…截断truth table 真值表tube 管子ubiquitous 普遍从在的ubiquitous 到处存在的，普遍存在的ultra-violet radiation 紫外辐射uniformly 一律的untrmmelled 不受限制的，自由自在的，不受妨碍的upcoming 即将来临的，预定将要utility 有用UWB(Uitra Wide Band) 超宽带vacuum tube 真空管vector 向量vehicle 交通工具.车辆Verion Wireless 美国电信业剧透very-large-scale-integration(VLSI) 超大规模集成电路vibrations 颤动video 视频Vodafone 沃达丰，英国电信企业VoIP 网络电话voltage 电压volts 直流电压weight function 权值函数WiFi 基于IEEE802.11B标准的无限局域网wireless telegraphy 无线电报worthwhile 值得的.有价值的ZigBee 一种全新无线网络数据通信技术。

《电子与通信技术专业英语》Unit I-1

Chinese Translation of Texts
电容
电容存储电荷。因为电容使交流信号容易通过而阻隔直流信号，所以他们经常被用在滤波电路中。图1－2为电容实物图和电路符号。
Chinese Translation of Texts
Inductor
An inductor is a passive electronic component that store senergy in the form of a magnetic field. An inductor 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 Texts
电感
电感是一个无源电子元件，它以磁场的形式存储能量。电感是一个由电线缠绕了许多圈的线圈，经常缠绕在像铁这样的磁材料的磁芯上。图1－3为电感实物图和电路符号。
Chinese Translation of Texts
Diodes
Diodes 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.

电子信息类专业英语李霞答案

电子信息类专业英语李霞答案1、Tony is a quiet student, _______ he is active in class. [单选题] *A. soB. andC. but(正确答案)D. or2、We can’t go out ______ school nights. （）[单选题] *A. inB. on(正确答案)C. atD. by3、They took _____ measures to prevent poisonous gases from escaping. [单选题] *A.efficientB.beneficialC.validD.effective(正确答案)4、—______ is the concert ticket?—It’s only 160 yuan.（）[单选题] *A. How manyB How much(正确答案)C. How oftenD. How long5、The boy lost his（）and fell down on the ground when he was running after his brother. [单选题] *A. balance(正确答案)B. chanceC. placeD. memory6、The students in that university are not fewer than（）in our university. [单选题] *A. the oneB. thatC. themD. those(正确答案)7、44．—Hi, Lucy. You ________ very beautiful in the new dress today.—Thank you very much. [单选题] *A．look(正确答案)B．watchC．look atD．see8、A healthy life is generally thought to be（）with fresh air, clean water, and homegrown food. [单选题] *A. joinedB. boundC. lackingD. associated(正确答案)9、_______ is on September the tenth. [单选题] *A. Children’s DayB. Teachers’Day(正确答案)C. Women’s DayD. Mother’s Day10、40．—________ apples do we need to make fruit salad?—Let me think…We need three apples. [单选题] *A．How longB．How oftenC．How muchD．How many(正确答案)11、In winter, animals have a hard time_____anything to eat. [单选题] *A.to findB.finding(正确答案)C.foundD.to finding12、I walked too much yesterday and （）are still aching now. [单选题] *A. my leg's musclesB. my leg muscles(正确答案)C. my muscles' of legD. my legs' muscles13、Nuclear science should be developed to benefit the people_____harm them. [单选题] *A.more thanB.other thanC.rather than(正确答案)D.better than14、He’s so careless that he always _______ his school things at home. [单选题] *A. forgetsB. leaves(正确答案)C. putsD. buys15、The family will have _______ good time in Shanghai Disneyland. [单选题] *A. theB. a(正确答案)C. anD. /16、_____ Lucy _____ Lily has joined the swimming club because they have no time. [单选题] *A. Not only; but alsoB. Neither; nor(正确答案)C. Either; orD. Both; and17、3．—Will you buy the black car?No, I won't. I will buya(n) ________ one because I don't have enough money. [单选题] *A．cheap(正确答案)B．expensiveC．highD．low18、A survey of the opinions of students（）that they admit several hours of sitting in front of the computer harmful to health. [单选题] *A. show；areB. shows ；is(正确答案)C.show；isD.shows ；are19、She works in a hospital. She is a(n) _______. [单选题] *A. managerB. engineerC. doctor(正确答案)D. patient20、My brother will come to see me tomorrow. I’ll meet?_______ at the airport. [单选题] *A. herB. youC. him(正确答案)D. them21、He was?very tired，so he stopped?_____ a rest. [单选题] *A. to have(正确答案)B. havingC. haveD. had22、Last year Polly _______ an English club and has improved her English a lot. [单选题] *A. leftB. sawC. joined(正确答案)D. heard23、We sent our children to school to prepare them for the time _____ they will have to work for themselves. [单选题] *A. thatB. when(正确答案)C. whileD. as24、71．How beautiful the shoes look! Can I________？[单选题] *A．try it onB．try on itC．try them on(正确答案)D．try on them25、75．Why not________ for a walk? [单选题] *A．go out(正确答案)B．to go outC．going outD．goes out26、Becky is having a great time ______ her aunt in Shanghai. （）[单选题] *A. to visitB. visitedC. visitsD. visiting(正确答案)27、( ) You had your birthday party the other day,_________ [单选题] *A. hadn't you?B. had you?C. did you?D. didn't you?(正确答案)28、12．That is a good way ________ him ________ English. [单选题] *A．to help；forB．helps；withC．to help；with(正确答案)D．helping；in29、Mike and his friend are going to the _______ to see the new action movie tonight. [单选题] *A. book shopB. restaurantC. concertD. cinema(正确答案)30、Taking the subway is quite fast and cheap. It can _______ both time and money. [单选题] *A. savesB. save(正确答案)C. earnD. use。

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