专业英语课后答案.doc

合集下载

数学专业英语

数学专业英语课后答案2.1数学、方程与比例词组翻译1.数学分支branches of mathematics，算数arithmetics，几何学geometry，代数学algebra，三角学trigonometry，高等数学higher mathematics，初等数学elementary mathematics，高等代数higher algebra，数学分析mathematical analysis，函数论function theory，微分方程differential equation2.命题proposition，公理axiom，公设postulate，定义definition，定理theorem，引理lemma，推论deduction3.形form，数number，数字numeral，数值numerical value，图形figure，公式formula，符号notation(symbol)，记法/记号sign，图表chart4.概念conception，相等equality，成立/真true，不成立/不真untrue，等式equation，恒等式identity，条件等式equation of condition，项/术语term，集set，函数function，常数constant，方程equation，线性方程linear equation，二次方程quadratic equation5.运算operation，加法addition，减法subtraction，乘法multiplication，除法division，证明proof，推理deduction，逻辑推理logical deduction6.测量土地to measure land，推导定理to deduce theorems，指定的运算indicated operation，获得结论to obtain the conclusions，占据中心地位to occupy the centric place汉译英（1）数学来源于人类的社会实践，包括工农业的劳动，商业、军事和科学技术研究等活动。

数学专业英语第2章课后答案

2.12.比:ratio 比例:proportion 利率:interest rate 速率:speed 除:divide 除法:division 商:quotient 同类量:like quantity 项:term 线段:line segment 角:angle 长度:length 宽:width高度:height 维数:dimension 单位:unit 分数:fraction 百分数:percentage3.(1)一条线段和一个角的比没有意义,他们不是相同类型的量.(2)比较式通过说明一个量是另一个量的多少倍做出的,并且这两个量必须依据相同的单位.(5)为了解一个方程,我们必须移项,直到未知项独自处在方程的一边,这样就可以使它等于另一边的某量.4.(1)Measuring the length of a desk, is actually comparing the length of the desk to that of a ruler.(3)Ratio is different from the measurement, it has no units. The ratio of the length and the width of the same book does not vary when the measurement unit changes.(5)60 percent of students in a school are female students, which mean that 60 students out of every 100 students are female students.2.22.初等几何:elementary geometry 三角学:trigonometry 余弦定理:Law of cosines 勾股定理/毕达哥拉斯定理:Gou-Gu theorem/Pythagoras theorem 角:angle 锐角:acute angle 直角:right angle 同终边的角:conterminal angles 仰角:angle of elevation 俯角:angle of depression 全等:congruence 夹角:included angle 三角形:triangle 三角函数:trigonometric function直角边:leg 斜边:hypotenuse 对边:opposite side 临边:adjacent side 始边:initial side 解三角形:solve a triangle 互相依赖:mutually dependent 表示成:be denoted as 定义为:be defined as3.(1)Trigonometric function of the acute angle shows the mutually dependent relations between each sides and acute angle of the right triangle.(3)If two sides and the included angle of an oblique triangle areknown, then the unknown sides and angles can be found by using the law of cosines.(5)Knowing the length of two sides and the measure of the included angle can determine the shape and size of the triangle. In other words, the two triangles made by these data are congruent.4.(1)如果一个角的顶点在一个笛卡尔坐标系的原点并且它的始边沿着x轴正方向，这个角被称为处于标准位置.(3)仰角和俯角是以一条以水平线为参考位置来测量的,如果正被观测的物体在观测者的上方,那么由水平线和视线所形成的角叫做仰角.如果正被观测的物体在观测者的下方,那么由水平线和视线所形成的的角叫做俯角.(5)如果我们知道一个三角形的两条边的长度和对着其中一条边的角度,我们如何解这个三角形呢?这个问题有一点困难来回答,因为所给的信息可能确定两个三角形,一个三角形或者一个也确定不了.2.32.素数:prime 合数:composite 质因数:prime factor/prime divisor 公倍数:common multiple 正素因子: positive prime divisor 除法算式:division equation 最大公因数:greatest common divisor(G.C.D) 最小公倍数: lowest common multiple(L.C.M) 整除:divide by 整除性:divisibility 过程:process 证明:proof 分类:classification 剩余:remainder辗转相除法:Euclidean algorithm 有限集:finite set 无限的:infinitely 可数的countable 终止:terminate 与矛盾:contrary to3.(1)We need to study by which integers an integer is divisible, that is , what factor it has. Specially, it is sometime required that an integer is expressed as the product of its prime factors.(3)The number 1 is neither a prime nor a composite number;A composite number in addition to being divisible by 1 and itself, can also be divisible by some prime number.(5)The number of the primes bounded above by any given finite integer N can be found by using the method of the sieve Eratosthenes.4.(1)数论中一个重要的问题是哥德巴赫猜想,它是关于偶数作为两个奇素数和的表示.(3)一个数,形如2p-1的素数被称为梅森素数.求出5个这样的数.(5)任意给定的整数m和素数p,p的仅有的正因子是p和1,因此仅有的可能的p和m的正公因子是p和1.因此,我们有结论:如果p是一个素数,m是任意整数,那么p整除m,要么(p,m)=1.2.42.集:set 子集:subset 真子集:proper subset 全集:universe 补集:complement 抽象集:abstract set 并集:union 交集:intersection 元素:element/member 组成:comprise/constitute包含:contain 术语:terminology 概念:concept 上有界:bounded above 上界:upper bound 最小的上界:least upper bound 完备性公理:completeness axiom3.(1)Set theory has become one of the common theoretical foundation and the important tools in many branches of mathematics.(3)Set S itself is the improper subset of S; if set T is a subset of S but not S, then T is called a proper subset of S.(5)The subset T of set S can often be denoted by {x}, that is, T consists of those elements x for which P(x) holds.(7)This example makes the following question become clear, that is, why may two straight lines in the space neither intersect nor parallel.4.(1)设N是所有自然数的集合,如果S是所有偶数的集合,那么它在N中的补集是所有奇数的集合.(3)一个非空集合S称为由上界的,如果存在一个数c具有属性:x<=c对于所有S中的x.这样一个数字c被称为S的上界.(5)从任意两个对象x和y，我们可以形成序列（x，y），它被称为一个有序对，除非x=y，否则它当然不同于（y，x）.如果S和T是任意集合，我们用S*T表示所有有序对（x,y),其中x术语S，y属于T.在R.笛卡尔展示了如何通过实轴和它自己的笛卡尔积来描述平面的点之后，集合S*T被称为S和T的笛卡尔积.2.52.竖直线:vertical line 水平线:horizontal line 数对:pairs of numbers 有序对:ordered pairs 纵坐标:ordinate 横坐标:abscissas 一一对应:one-to-one 对应点:corresponding points圆锥曲线:conic sections 非空图形:non vacuous graph 直立圆锥:right circular cone 定值角:constant angle 母线:generating line 双曲线:hyperbola 抛物线:parabola 椭圆:ellipse退化的:degenerate 非退化的:nondegenerate任意的:arbitrarily 相容的:consistent 在几何上:geometrically 二次方程:quadratic equation 判别式:discriminant 行列式:determinant3.(1)In the planar rectangular coordinate system, one can set up aone-to-one correspondence between points and ordered pairs of numbers and also a one-to-one correspondence between conic sections and quadratic equation.(3)The symbol can be used to denote the set of ordered pairs（x，y）such that the ordinate is equal to the cube of the abscissa.（5）According to the values of the discriminate，the non-degenerate graph of Equation （iii） maybe known to be a parabola， a hyperbolaor an ellipse.4.（1）在例1，我们既用了图形，也用了代数的代入法解一个方程组（其中一个方程式二次的，另一个是线性的）。

汽车专业英语课后题答案

CHARPTE ONE ENGINEUnit 11、回答问题(1)The purpose of using a liner is that, if the cylinder is damaged, the liner can be removed and replaced rather easily.(2) It mainly consists of piston, compression rings, oil control rings, oil control rings, piston pin and connecting rod.(3) It includes crankshaft, bearings, flywheel, harmonic balancer, timing gear, and front and rear seals.(4) The piston reciprocating motion changes to the crankshaft rotary motion by connecting rod.(5) It is used to transfer the camshaft lift to the valve assembly.(6) The rotary motion of the camshaft changes to reciprocating motion by lifters.2、英译汉（1）气门弹簧座圈（2）气门传动机构（3）排气歧管垫（4）气门杆（5）往复式发动机（6）压缩比（7）排气冲程（8）连杆轴承3、汉译英（1）crankshaft main bearing（2）cylinder head bolt （3）piston ring（4）connecting rod bearing （5）cylinder head gasket （6）connecting rod bolt （7） rocker arm shaft （8）hydraulic lifter4、翻译句子（1）这个问题通常与汽缸盖内破裂或者变形有关，缸体破裂可能还会引起燃烧室冷却，导致排放白色尾气。

《计算机专业英语》习题参考答案

《计算机专业英语》习题参考答案Lesson 1I.1. Operating System2. Fetch-evaluate-execute3. Front-side bus4. Dual-core processor5. Basic Input/Output System(BIOS)II.1. 指令是特定各式的二进制数列，它们对于每台机器都是唯一的。

2. CPU是中央处理单元的简称，每个字母分开发音。

3. 大多数计算在中央处理器中进行。

4. 双核是指一个处理器上有两个完整运算内核的CPU。

5. 处理器：是微处理器或CPU的缩写。

6. 集成电路：即芯片，是由半导体材料制成的一种电子设备。

III.1. F2. T3. TIV.1.ALU, CU, Register2.memory3.processor4.the CPULesson 2I.1.Static Random Access Memory(SRAM)2.Dynamic Random Access Memory(DRAM)3.Virtual Memory4.Physical Memory5.Level 1 Cache6.Level 2 Cache7.HDD access speedII.1.动态随机存储器之所以称为“动态”是因为它每秒钟被刷新数千次。

2.RAM：是计算机中存储操作系统、应用程序和当前正是用数据的地方。

3.ROM由计算机中一小块长寿命电池供电。

4.RAM缓存是由高速静态随机存储器构成的存储器。

III.1. F2. F3. F4. TIV.1. non-volatile2. compiler3. volatile4. DRAMLesson 3I.1. Motherboard2. PC Case3. Hard Disk Drive(HDD)4. Optical mouse5. RAM6. Mobile DiskII.1.PC是有很多组件构成的一个系统。

数学专业英语课后答案

数学专业英语课后答案1、He kept walking up and down, which was a sure（）that he was very worried. [单选题] *A. sign(正确答案)B. characterC. natureD. end2、20．Jerry is hard-working. It’s not ______ that he can pass the exam easily. [单选题] * A．surpriseB．surprising (正确答案)C．surprisedD．surprises3、--What’s the weather like today?--It’s _______. [单选题] *A. rainB. windy(正确答案)C. sunD. wind4、Many of my classmates are working _______volunteers. [单选题] *A. as(正确答案)B. toC. atD. like5、Mary is interested ______ hiking. [单选题] *A. onB. byC. in(正确答案)D. at6、We need a _______ when we travel around a new place. [单选题] *A. guide(正确答案)B. touristC. painterD. teacher7、While they were in discussion, their manager came in by chance. [单选题] *A. 抓住时机C. 碰巧(正确答案)D. 及时8、Our campus is _____ big that we need a bike to make it. [单选题] *A. veryB. so(正确答案)C. suchD. much9、57．Next week will be Lisa's birthday. I will send her a birthday present ________ post. [单选题] *A．withB．forC．by(正确答案)D．in10、The manager demanded that all employees _____ on time. [单选题] *A. be(正确答案)B. areC. to be11、He has two sisters but I have not _____. [单选题] *A. noneB. someC. onesD. any(正确答案)12、______! It’s not the end of the world. Let’s try it again.（）[单选题] *A. Put upB. Set upC. Cheer up(正确答案)D. Pick up13、My brother usually _______ his room after school. But now he _______ soccer. [单选题] *A. cleans; playsB. cleaning; playingC. cleans; is playing(正确答案)D. cleans; is playing the14、The museum is _______ in the northeast of Changsha. [单选题] *A. sitB. located(正确答案)C. liesD. stand15、______ my great joy, I met an old friend I haven' t seen for years ______ my way ______ town. [单选题] *A. To, in, forB. To, on, to(正确答案)C. With, in, toD. For, in, for16、In the closet（）a pair of trousers his parents bought for his birthday. [单选题] *A. lyingB. lies(正确答案)c. lieD. is lain17、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．see18、They all choose me ______ our class monitor.（）[单选题] *A. as(正确答案)B. inC. withD. on19、My mother’s birthday is coming. I want to buy a new shirt ______ her.（）[单选题] *A. atB. for(正确答案)C. toD. with20、--Could you please tell me _______ to get to the nearest supermarket?--Sorry, I am a stranger here. [单选题] *A. whatB. how(正确答案)C. whenD. why21、?I am good at schoolwork. I often help my classmates _______ English. [单选题] *A. atB. toC. inD. with(正确答案)22、He was very excited to read the news _____ Mo Yan had won the Nobel Prize for literature [单选题] *A. whichB. whatC. howD. that(正确答案)23、Becky is having a great time ______ her aunt in Shanghai. （）[单选题] *A. to visitB. visitedC. visitsD. visiting(正确答案)24、In the future, people ______ a new kind of clothes that will be warm when they are cold, and cool when they’re hot.（）[单选题] *A. wearB. woreC. are wearingD. will wear(正确答案)25、This message is _______. We are all _______ at it. [单选题] *A. surprising; surprisingB. surprised; surprisedC. surprising; surprised(正确答案)D. surprised; surprising26、Your homework must_______ tomorrow. [单选题] *A. hand inB. is handed inC. hands inD. be handed in(正确答案)27、Since the war their country has taken many important steps to improve its economic situation. [单选题] *A. 制定B. 提出C. 讨论D. 采取(正确答案)28、How _______ Grace grows! She’s almost as tall as her mother now. [单选题] *A. cuteB. strongC. fast(正确答案)D. clever29、_____ is not known yet. [单选题] *A. Although he is serious about itB. No matter how we will do the taskC. Whether we will go outing or not(正确答案)D. Unless they come to see us30、You cannot see the doctor _____ you have made an appointment with him. [单选题] *A. exceptB.evenC. howeverD.unless(正确答案)。

汽车专业英语课后练习答案

ReviewsExercisesI．Translate the following into Chinese．(85)1front-mounted engine2rechargeable battery3drive shaft4torque converter5compression ignition engine6hydraulic control system7spark—ignition engine8performance parameter9compression stroke10compression chamber volume11theoretical power12electricity—powered vehicles13gasoline—powered vehicles14bore and stroke15driving road wheels16four stroke cycle17intake stroke18combustion stroke19internal combustion engine20top dead center21air—fuel mixture22V—type engine23cylinder block24intake valve25flywheel26valve lash27water pump28oil filter29clutch fork30propeller shaft31up and down movement32unsprung weight33steering system34shock absorber35occupant space36energy absorbing steering column 37ignition system38air conditioning system39MPV40SUV 1前置发动机2可再充电池3驱动轴4变矩器5压缩点火发动机6液压控制系统7火花塞点火发动机8性能参数9压缩行程10压缩腔体积11理论动力功率12电力车辆13汽油动力车辆14缸径与行程15路面驱动轮16四冲程周期17进气行程18压缩行程19内燃机20上止位21空燃混合物22V型发动机23缸体24进气阀25飞轮26阀门隙27水泵28机油过滤器29离合叉30推动轴31上下颠簸32非弹簧承载质量33转向系统34减震器35乘员空间36吸能转向柱37点火系统38空调系统39多用途车辆40运动通用车辆41mass flow meter42injection duration43electronic fuel injection44vapor lock45pressure regulator46pulsation damper47transaxle48modulator49torque converter50one-way clutch51solenoid valve52planetary gear set53valve body54brake fluid55EBCM56wheel speed sensor57hydraulic pressure58MPH59pulse frequency60dynamic test61rotating speed62in series63optional vacuum64Jack stands65speed up66accessory drive belt inspection 67vehicle lifting platform68engine air cleaner filter69diagnostic tree70ABS71ignition triggering sign72digital multimeter73engine cooling system74automotive diagnostic scanner 75CMPS76daily maintenance77repair manuals78dynamic data stream79safety belts80trouble code81Toyota82windshield washer83air cleaner filter84fuel pressure regulator 41质量流量计42喷油持续时间43电子燃油喷射44气阻45压力调节器46脉动阻尼器47变速轴48调节器49变矩器50单向离合器51电动阀52行星齿轮组53阀门体54制动油55电子制动控制模块56轮速传感器57液压58英里/小时59脉动频率60动力学试验61转速62串联63可选性真空64千斤顶座65提速66辅助驱动皮带检查67车辆升降台68发动机空气滤清器69诊断树70防抱死制动系统71点火触发信号72数字万用表73发动机冷却系统74汽车诊断扫描仪75凸轮轴位置传感器76每日维护77维修手册78动力学数据流79安全皮带80故障代码81丰田82挡风玻璃洗涤器83空气滤清器84燃油压力调节器85Audi85奥迪Ⅱ．Translate the following into English．(85)1火花塞2燃烧室温度3传动轴4离台器总成5汽车防抱死制动系统6传动比7转向系统8底盘参数9水泵10后差速器11有效功率l2整备质量13蒸汽汽车14出行方式15最小离地间隙16奥托循环发动机17燃烧室18压缩行程19排气行程20气缸盖21曲柄连杆机构22排气门23润滑系统24冷却系统25节温器26机油泵27离合器压盘28差速器29弹簧承载质量30转向系统31齿轮齿条式转向器32制动系统33制动主缸34四轮驱动35皮卡汽车36起动机37交流发电机38分电器39点火线圈40制动灯41电子控制系统1spark plug2combustion chamber temperature 3drive shaft4clutch assembly5anti-lock brake system6gear ratio7steering system8chassis parameter9water pump10rear differential11effective power12curb weight13steam-powered vehicle14transportation mode15minimum clearance16Otto cycle engine17combustion chamber18compression stroke19exhaust stroke20cylinder cover21crankshaft connecting mechanism 22exhaust valve23lubricating system24cooling system25thermostat26oil pump27clutch pressing plate28differential29sprung weight30steering system31rank and pinion steering system 32brake system33braking master cylinder34four wheel drive35pickup car36starter37alternator38distributor39ignition coil40braking lamp41electronic control system42废气再循环43燃油供给系统44燃油滤清器45电子控制燃油喷射系统46多点燃油喷射47空气进气系统48前轮驱动49驱动轮50空挡51自动变速器52制动带53液力变矩器54防抱死制动系统55报警指示器56回流泵57制动踏板58电磁阀59仪表板60主缸61轮缸62巡航控制系统63数字信号64加速踏板65变速杆66维修手册67故障码68曲轴位置传感器69诊断70征兆71点火线圈72真空表73路试74滤网75抛锚76底盘77排气系统78自动变速器79轮胎气压表80短途81点火反馈信号82电控单元83螺钉旋具84扳手85二极管42exhaust gas recirculation43fuel delivery system44fuel filter45electronic control fuel injection system 46multiple point fuel injection47air intake system48front wheel drive49driving wheel50neutral shift51automatic transmission52braking belt53hydraulic torque converter54anti-lock brake system55warning indicator56return flow pump57brake pedal58solenoid valve59instrumentation/dash/penal60master cylinder61wheel cylinder62cruise control system63digital signal64acceleration pedal65shift level66repair manual67trouble code68CKPS/crankshaft position sensor69diagnosis70symptom71ignition coil72vacuum gauge73road test74screen75breakdown76chassis77exhaust system78automatic transmission79wheel inflation gauge80short distance81ignition feedback signal82electronic control unit83screwdriver84wrench/spanner85diodeIV．Review the following questions according to the texts．(29)1Who built the first gasoline powered car?Answer：In1885,Karl Benz built the first three-wheeled gasoline-powered car in Germany.In the following year,the milestone vehicle was built by Gottlieb Daimler，another German.He perfected the two-cylinder gasoline engine and attached it to the stagecoach,thereby producing the first four-wheeled motor vehicle in the world．2Why did Henry Ford produce automobiles on a moving conveyor line?Answer：In1913,Henry Ford began making automobiles on a moving conveyor line in his factories.He realized that efficient mass production could lower ear prices,making cars affordable for the average person，thus generating a huge market．This was a smashing success.By1916 annual U S auto production reached one million units,a level not reached by any other country until about40years later in England.3What's the function of engine?Answer：The engine acts as the power unit.4What's the function of ignition plug?Answer：The ignition plug supplies the electric spark to ignite the air—fuel mixture in the cylinders.5Why do we need the cooling system on engine?Answer：The cooling system removes excessive heat from the engine.The temperature in engine combustion chambers is about2,000o F(1,094℃).Since steel melts at round2,500o F(1,354℃), this heat must be carried away to prevent engine damage.Air and coolant are used to carry away the heat.6What's the function of storage battery?Answer：The battery stores electricity.It supplies electricity for the ignition,horn,lights,heat and stater.The alternator changes the engine's mechanical energy into electrical energy and recharges the battery.7What do dimensions of all automobile include?Answer：The dimensions of an automobile can make you know the appearance of it．They contain the wheelbase,the track front and rear,the overall length,the overall width,he overall height，overhang front,overhang real,the angle of approach,the angle of departure,interior length, interior width，interior height，the ground clearance，curb weight，gross vehicle weight，number of the doors，seating capacity and trunk or cargo space．8Describe the definition of compression ratio.Answer：Compression ratio are frequently used engine pression ratio compares the total cylinder volume to compression chamber volume.9Please list the name of the four strokes，and explain the working principle of the four strokecycle.Answer：The four strokes refer to intake，compression，combustion(power)and exhaust strokes that occur during two crankshaft rotations per working cycle of the gasoline engine and diesel engine.The cycle begins at top dead center(TDC)，when the piston is farthest away from the axis of the crankshaft On the intake stroke of the piston，the piston descends from the top of the cylinder，reducing the pressure inside the cylinder．A mixture of fuel and air is forced(by atmospheric or greater pressure)into the cylinder through the intake(inlet)port.The intake(inlet) valve(or valves)then close(s)，and the compression stroke compresses the fuel-air mixture.The air-fuel mixture is then ignited near the end of the compression stroke，usually by a spark plug(for a gasoline or Otto cycle engine)or by the heat and pressure of compression(for a Diesel cycle or compression ignition engine)The resulting pressure of burning fuel gas pushes the piston through the power stroke In the exhaust stroke,the piston pushes the products of combustion from the cylinder through an exhaust valve or valves.10How many parts does the chassis consist of?Answer：In the case of a vehicle，the chassis includes four parts：transmission system，driving system，steering system and braking system.11Please write down every part function of the chassis.Answer：The function of the transmission is to transmit the power and torque from the engine to the wheels.The driving system carries the power from the transmission to the differential at the real-wheel axles，causing the rear wheels to rotate.The purpose of the steering system is guiding the car where me driver wants it to go.As we know,the brake system is used to slow down and stop a vehicle.12Please give examples of several forms and features of body.Answer：(1)4x4or4WD(“four by four”or“four wheel drive”)Vehicle：A four-wheeled vehicle with a drivetrain that allows all four wheels to receive power from the engine simultaneously The terms are usually(but not exclusively)used in Europe to describe what is referred to in North America as a sport utility vehicle or SUV f see below).(2)Convertible Vehicle:A body style with a flexible textile folding roof or rigid retracting roof of highly variable design detail to allow driving in open or enclosed modes.(3)Crossover(or CUV)Vehicle:A loose marketing term to describe a vehicle that blends features of a SUV with features of a car especially forgoing the body on frame construction of the SUV in favor of the car’s unibody or monocoque construction.(4) MPV:Multi-purpose vehicle a large car or small bus is designed to be used on and off road and easily convertible to facilitate loading of goods from facilitating carrying people.(5)Pickup Truck:A small，medium，or large-sized truck，though smaller in every case than a Semi tractor truck.The passenger cabin is wholly separated from the cargo bed.(6)Roadster:Originally a two-seat open car with minimal weather protection——without top or side glass though possibly with optional hard or soft top and side curtains(i.e.，without roll—up glass windows).In modem usage，the term means simply a two—seat sports calf convertible，a variation of spyder.13Please write the types of car lights and the roles of the lights.Answer：The lighting system in a typical automobile includes the headlights，parking lights，direction signal lights，side marker lights，stoplights，backup lights，tail lights and the interior lights The interior lights include instrument-panel lights，various warning，indicator and courtesy lights which turn on when a car-door is opened.When the light switch is pulled out,the circuit from the battery to the headlights is completed.This switch has two positions,low beam anddriving beam.These are also called passing beam and high beam.The backup lights come on when the driver shifts into reverse.This closes a switch linked to the selector lever which connects the backup lights to the battery.Blinker lights are installed on many cars to provide a means of signaling when a car is smiled on the highway or has pulled off to the side.The blinking is much mom noticeable than a steady light and provides a warning to approaching ears.14Please list the main categories of the sensors used in the engine electronic control system. Answer：The main categories of the sensors used in the engine electronic control system include AFM，CTS，CMPS，CKPS，TPS，O2S，A／F ratio sensor and KS.15How to operate the EFI system?Answer：The EFI system uses various sensors to detect the engine conditions and automobile running conditions.And the engine ECU calculates the optimum fuel injection volume,and causes the injectors to inject the fuel.16Please list the basic types of automatic transmissions.Answer：There are two basic types of automatic transmissions based on whether the vehicle is rear wheel drive or front wheel drive.On a rear wheel drive car,the transmission is usually mounted to the back of the engine.A drive shaft connects the rear of the transmission to the final drive．which is located in the rear axle and is used to send power to the rear wheels.On a front wheel drive car, the transmission is usually combined with the final drive to from what is called a transaxle.17What are the main components that make up an automatic transmission?Answer：The main components that make up an automatic transmission1nclude:(1)Planetary gear sets which are the mechanical system provide the various forward gear ratios as well as reverse.(2)The hydraulic system uses a special transmission fluid sent under pressure by an oil Dump through the vane body to control the clutches and the bands in order to control the planetary gear sets.(3)Seals and gaskets an used to keep the oil where it is supposed to be and prevent it from leaking out．(4)The torque convener acts like a clutch to allow the vehicle to come to a stop in gear while the engine is soil running.(5)The governor and the modulator or throttle cable monitor speed and throttle position in order to determine when to shift.(6)On newer vehicles．shift points are controlled by computer which directs electrical solenoids to shift oil flow to the appropriate component at the right instant.18Please list the four steps of ABS control cycle.Answer：The four steps of ABS control cycle：(1)EBCM monitoring the wheel speed.(2)Isolating the wheel circuit if the wheel is decelerating too fast(pressure maintain).(3)Reducing wheel circuit pressure if the wheel continues to decelerate too fast.(4)Increasing the wheel circuit pressure when wheel acceleration reaches a preset level.19What is the function of ABS?Answer：An anti-lock brake system(ABS)is a computer-controlled brake system that helps prevent wheels lockup during braking.ABS can maintain control of the vehicle to stop vehicle in the shortest possible distance and in as straight a line as possible，the wheels must be prevented from locking.20Please list the functions of the cruise system.Answer：The cruise control system(CCS)allows you to maintain a set speed above40km/h without keeping your foot off the accelerator pedal.21What is ACC?Answer：Adaptive cruise control(ACC)is an automotive feature that allows a vehicle’s cruisecontrol system to adapt the vehicle's speed to the traffic environment.22Why does the automobile require regular attention and preventive maintenance?Answer：Most of the major parts and systems of the chassis body and engine have predictable use. These parts and systems require regular attention and preventive maintenance.Regular,scheduled maintenance can prevent most common problems and as sure that your car take corrective action. Preventive maintenance will reduce the chance of breakdowns and lower your overall costs.23If a Toyota saloon car’s accelerating capability at high vehicle speed was poor，what will you do?Answer：If a Toyota saloon car’s accelerating capability at high vehicle speed was poor，I shall do as follows:(1)Checking the symptom：(for example)There was a Toyota saloon car，its engine type was2JZ —GE Its accelerating capability at high vehicle speed was poor.(2)Reporting undergoing:(for example)According to what the driver said,firstly gave a drive test which confirmed the driver's description that during acceleration,the output power of the engine is insufficient，likely caused by poor fuel supply So we had a fuel pressure test for the still vehicle The pressure at idle speed was25kg／cm2，and35kg／cm2at acceleration.That was normal Then we checked the sparking timing The result was ing the hand—held tester specifically for Toyota to read trouble codes，we found no trouble codes At last we checked the dynamic data steam.The result was within the accepted range At this time．a11of us were confused，but after consulting with other staff，we were still suspicious of the fuel supply So we linked a fuel-pressure gauge to the fuel rail again and drove the car to have a road test During acceleration，we found that the gauge arm dropped a little.After coming back，we disassembled the fuel pump from the fuel tank and found that the screen was seriously clogged At last，we talked with the driver knowing that his car has run for more than200,000km without any services for the fuel tank.(3)Trouble Solving：(for example)Cleaned the screen and changed the fuel filter The vehicle’s acceleration became satisfied.24What can the screwdriver do?Answer：The screwdriver is a device specifically designed to insert and tighten，or to loosen and remove screws The screwdriver is made up of a head or tip,which engages with a screw,a mechanism to apply torque by rotating the tip,and some way to position and support the screwdriver.25For testing the mechanical side of the engine，you will need some more specialized equipment. Please take some examplesAnswer：For testing the mechanical side of the engine,we need some more specialized equipment.A vacuum gauge with several adapters can be used to test manifold vacuum and test vacuum operated circuits.A vacuum pump is handy for testing vacuum operated components such as EGR valves and heating and air conditioning systems.26How to do the effective diagnosis and troubleshooting when the car breakdown?Answer：The secret of effective diagnosis and troubleshooting is to have a logical well-ordered procedure.Following a logical step-by-step procedure will get you to the root cause of a problem quickly and efficiently.27What can the wrench do?Answer：A wrench or spanner is a tool used to provide a mechanical advantage in applying torque to turn bolts,nuts or other items designed to interface with a wrench.At present，we can see thosetools，like box wrench，electronic torque wrench，combination wrench，adjustable wrench，speed handle and ratchet handle.28What can the diagnostic tree do?Answer：The diagnostic tree goes in a logical progression.It will ask a question，usually yes or no，and depending on the answer will branch off in two or more directions.The last box in the tree will have the problem and how to correct it.A more complicated procedure will have branches going into specific tests and then have two or more branches from there depending on test results. 29How to check the engine oil level?Answer：Check the oil gauge.If under the low level,add the proper oil in the engine.Or dim the dim-stick through the hole in the engine,check the dimmed line.If need,add the proper oil.。

大学专业用途英语课后习题答案

大学专业用途英语课后习题答案1. You'd better ( ) a copy of the whole article for yourself. [单选题] *A. make(正确答案)B. makingC. to makeD. made2. He is very strict. It is no use ( ) yourself to him. [单选题] *A. explainedB. to explainC. explaining(正确答案)D. explain3. All people must pull together ( ) the project can be finished on schedule. [单选题] *A. as thoughB. ifC. even thoughD. in order that(正确答案)4. I wish I ( ) shopping with you yesterday, because I was very bored at home then. [单选题] *A. had gone(正确答案)B. would goC. could have goneD. went5. If ( ) in a warm place, these flowers will bloom in late May. [单选题] *A. to plantB. planted(正确答案)C. plantD. planting6. My father recommended two new books to me, ( ) seemed to be very interesting. [单选题] *A. both of thatB. all of thatC. both of which(正确答案)D. all of which7. Tom will never forget the days ( ) he lived in the remote village with his parents. [单选题] *A. whatB. whichC. when(正确答案)D. why8. Don't expect too much from her. The more you expect, ( ) you will become. [单选题] *A. the disappointedB. more disappointedC. the most disappointedD. the more disappointed(正确答案)9. The weather is quite fine. Let's go swimming, ( )？ [单选题] *A. will youB. shall we(正确答案)C. do weD. do you10. There is no doubt that the residents living in this building can have free ( ) to the swimming pool. [单选题] *A. excessB. access(正确答案)C. accelerateD. assess11. If you want to strengthen your friendship with your friends, you should ( ) more time communicating with them. [单选题] *A. spend(正确答案)B. takeC. payD. cost12. Tom has been nervous for three days, since he will have a(n) ( ) for the manager's job. [单选题] *A. reviewB. viewC. chatD. interview(正确答案)13. But for your advice, I ( ) the task arranged by the leader yesterday. [单选题] *A. shall not finishB. could not have finished(正确答案)C. shall finishD. could finish14. The aim of this meeting is ( ) how to solve the serious crisis. [单选题] *A. to discuss(正确答案)B. discussingC. to discussingD. discussed15. This building is named ( ) his name in memory of his great invention. [单选题] *A. upB. after(正确答案)C. atD. in16. ( ) are quite humorous and everyone likes making friends with them. [单选题] *A. The Bushes(正确答案)B. A BushC. BushesD. The Bush17. One way to manage time wisely is to give ( ) to what is the most important. [单选题] *A. principleB. permissionC. priority(正确答案)D. process18. The teachers don't know ( ), because the meeting rooms are being decorated. [单选题] *A. where should the meeting be heldB. which should the meeting be heldC. which the meeting should be heldD. where the meeting should be held(正确答案)19. Due to the outbreak of the epidemic, many outdoor activities have been ( ). [单选题] *A. called forB. called off(正确答案)C. called backD. called in20. According to the report, some experts ( ) the shop with selling cups with insulting ads. [单选题] *A. charge(正确答案)B. accuseC. blameD. condemn21. Some people ( ) it for granted that what they pick up in the street belongs to them. [单选题] *A. makeB. take(正确答案)C. getD. regard22. Because there is enough time, the teacher advises students ( ) their papers again. [单选题] *A. examinedB. to examine(正确答案)C. to examiningD. examine23. Many people suffer from hunger in this country ( ) the decrease of food imports this year. [单选题] *A. instead ofB. regardless ofC. due to(正确答案)D. as to24. I ( ) reading the novel by yesterday, so I buy a new novel today. [单选题] *A. had finished(正确答案)B. finishedC. finishD. would finish25. Most foreign people think ( ) very difficult to learn to write Chinese characters. [单选题] *A. thatB. thisC. it(正确答案)D. one26. Mary heard her name called by someone, whose voice was very familiar ( ) her. [单选题] *A. withB. to(正确答案)C. onD. in27. One ( ) of extra-curricular activities is that the kids involved can gain friendship. [单选题] *A. flexibilityB. benefit(正确答案)C. privilegeD. interest28. I will tell the truth to him if he ( ) the funeral the day after tomorrow. [单选题] *A. would attendB. will have attendedC. attends(正确答案)D. will attend29. His ( ) of the accident conflicted with that of the other witnesses. However, I believed what he said was true. [单选题] *A. expectationB. instructionC. responseD. account(正确答案)30. Every time I run into difficulty, he is always the first ( ) help. [单选题] *A. to be offeredB. to offer(正确答案)C. offerD. offering31. Many women have to resign in order to ( ) their children wholeheartedly. [单选题] *A. bring up(正确答案)B. put upC. break upD. build up32. My good friend Lily told me that she ( ) to New York the next month. [单选题] *A. wentB. goesC. would go(正确答案)D. will have gone33. It is natural that people ( ) feel upset for no reason. It usually won't last too long. [单选题] *A. sometimes(正确答案)B. some timesC. a timeD. some time34. Our company wants to invest in the property market, so we look forward to ( ) with that company. [单选题] *A. cooperateB. cooperating(正确答案)C. cooperatedD. being cooperated35. It is really ( ) to borrow money from your elder sister just to help a selfish stranger pay off his debt. [单选题] *A. ridiculous(正确答案)B. stubbornC. splendidD. popular36. The kids in the kindergarten help each other and never quarrel, thus creating a ( ) atmosphere. [单选题] *A. commonB. lonelyC. peaceful(正确答案)D. steady37. You ( ) to make so many preparations; the job has been assigned to an experienced fellow. [单选题] *A. needn't have bothered(正确答案)B. shouldn't have botheredC. mustn't have botheredD. couldn't have bothered38. ( ) in the park yesterday afternoon, my mother met an old friend. [单选题] *A. To walkB. Walking(正确答案)C. WalkD. Walked39. Mary behaved in a specially confident manner ( ) she had understood the problem completely. [单选题] *A. as if(正确答案)B. whetherC. althoughD. than40. As we all know, success results from hard work; ( ) efforts, nothing can be achieved. [单选题] *A. except forB. without(正确答案)C. despiteD. besides41. His advice is that your father ( ) more exercise outdoors in the morning. [单选题] *A. doneB. will doC. should do(正确答案)D. does42. From this book, you can know ( ) those animals escape from their natural enemies. [单选题] *A. whoB. how(正确答案)C. whereD. it43. Plants are very ( ) to climate change. Therefore, many tree species are faced with extinction because of global warming. [单选题] *A. sensibleB. consciousC. sensitive(正确答案)D. independent44. His two dogs made a mess in his room, ( ) he didn't want to punish them. [单选题] *A. andB. orC. becauseD. but(正确答案)45. Hearing the words, he didn't seem to be offended; ( ), he looked very happy. [单选题] *A. in a wordB. in other wordsC. on the wholeD. on the contrary(正确答案)46. ( ) the salary is rather low, many young people have resigned in recent months. [单选题] *A. Because(正确答案)B. ForC. AfterD. So that47. What the little girl wants ( ) a pen, and what her elder brother wants ( ) two books. [单选题] *A. are; areB. is; isC. is; are(正确答案)D. are; is48. Most universities don't ( ) that every student can graduate with a certificate if they don't study hard. [单选题] *A. guarantee(正确答案)B. provideC. requireD. complete49. The company has recently taken on fifty people ( ) live in the local area. [单选题] *A. whichB. whoseC. thoseD. who(正确答案)50. All the afternoon my colleagues and I ( ) a report in the meeting room. [单选题] *A. prepareB. were to prepareC. have been preparing(正确答案)D. had been preparing5I. It is no use worrying about the future all the time. No one knows what will ( ) next minute. [单选题] *A. take placeB. get onC. disappearD. happen(正确答案)52. Alice, please turn down the music. I ( ) an important phone call at present. [单选题] *A. answerB. answeredC. have answeredD. am answering(正确答案)53. After you use my dictionary and English book, you should place them ( ) they used to be. [单选题] *A. the momentB. where(正确答案)C. whenD. that54. ( ) runs the fastest in the competition will be given an expensive prize. [单选题] *A. Whoever(正确答案)B. WhomeverC. WhomD. Who55. If you want these new employees to work out the answer, two hours and a half ( ) not enough. [单选题] *A. to beB. beingC. areD. is(正确答案)56. Only after they had examined the machine for several hours ( ) the problem. [单选题] *A. they foundB. did they find(正确答案)C. they findD. do they find57. ( ), he doesn't know how to get on with other people. [单选题] *A. Adult as he is(正确答案)B. Adult he is asC. Adult he as isD. An adult as he is58. It was ( ) that they went for a picnic in the park last weekend. [单选题] *A. so nice a weatherB. such nice weather(正确答案)C. nice weather soD. too nice weather59. It is advisable to adjust the measures on the ( ) of short-time predictions. [单选题] *A. basis(正确答案)B. baseC. foundationD. ground60. ( ) slowly he runs! I don't think he may attend the lecture on time. [单选题] *A. WhatB. ItC. How(正确答案)D. Whether。

专业学位硕士研究生英语教程Unit-6词汇及课后答案(word文档良心出品)

unit 6EmploymentWord Bankass: n. hip (top<->bottom<->margin)臀部; hip-shoot莽撞(audio-:与听力有关->) audition(interview: n./vt.-> interviewer<-> interviewee; trainer教练<->trainee受训者; addresser演讲人<->addressee听众)；employer雇主<->employee雇员): v. to take part in a trial performance试演，试播(push) cart->carriage/coach; auto-: 自动-> (auto + mobile->) automobile汽车; alto): n. the biography written by that person自传buyout: n. the entire purchase全部买下campaign: n. series of operations运动/ movement(celebrate->) celebrity: n. a famous person名人(circle园->cycle周期->recycle回收->circulate->) circulation: n. the number of copies of a publication发行量; public: (1)adj. ~property; (2)n., e.g. in public公开地；publicate =publish出版cognac: n. a brandy produced in the vicinity of cognac一种法国白兰地convention: n. (1)a formal meeting会议; 制度->conventional: adj. traditional传统的copywriter: n. one who writes copy, especially for advertising广告(文案)撰稿人；copier复印机; copyright版权(co + operate->) corporate (->corporation协作): adj. of a company公司的; student version 学生版; home version, professional version, corporate version企业版corporation: n. a company as a separate legal entity公司，法人[de-：(1)向下; (2)加强] dejected: adj. being in low (high) spirits; depressed垂头丧气的，情绪低落的; the Great Depression大萧条[monitor: (1) n. 班长/ 监视器；（2）监控] deputy: n. an assistant of authority for the superior 副手[despair: (1)n.; (2)vi.->] desperate: adj. losing all hope; despairing绝望的fold: v. to fail 失败formidable: adj. fearful; frightening可怕的，难对付的; be frightened be sth.(humiliate->) humiliation: n. degradation羞辱模糊的，难辨的: adv. (attention注意力) not attentively; carelessly未留心地，疏忽地nonprofit: adj. not seeking profits非盈利的; profit from sth.从中获利；profit sb.对…有利outsource: v. to subcontract外包: adj. excessively enthusiastic (->enthusiasm)过分热情的退休金，抚恤金激烈，e.g. ~ competition激烈的竞争) persevere: v. persist; hold on坚持不懈出版物rally: v. to reassemble; to restore , to rouse or to revive重整，重振；assemble组装->assembly lineretrospect: n. a review回顾评论; Peking Review北京周报ruse: (=trick) n. a strategy (->strategic missile战略导弹)诡计，计策;(secret: n. ->secretary->) secretarial: adj. of the secretary秘书的shorthand: n. a system of rapid handwriting速记; be short of sth. 短缺speedwriting: n. a form of shorthand that uses letters速记法temporary (->temporarily暂时地): adj. lasting for a limited time暂时的tenacity: n. perseverance坚韧(turbine涡轮->) turbulent: adj. restless; violent骚动的，动荡的Phrases and Expressionsbe on the air: to broadcast广播[On air]head for (make for / go to somewhere): to proceed for动身，前往keep sb. in line: to control sb.控制某人stand on sb's own (=self-rely): to be independent and responsible for oneself独立，自立thanks to: on account of; because of因为，由于Reading ComprehensionChoose the best for each of the following.1. Right after graduation, the author ( B )A. worked as an editor of a magazineB. co-wrote a bookC. worked in a broadcasting companyD. became a secretary2. Why was the author fired? ( C )A. Because she had illegible handwriting.B. Because she had the ass of the company heads in four colors.C. Because she made a mistake when writing letters to the heads of major corporations.D. Because the editor didn't like her.3. Sherrye Henry lost the job because ( A )A. the organization had financial troublesB. she worked for Clinton AdministrationC. she was the last one inD. she was a female4. Which of the following statements is NOT true about Lynn Sherr? ( D )A. She was ABC's award-winning television correspondent.B. She was gainfully employed at WCBS-TVC. She was fired by WCBS.D. She has never been on the air.5. What does the author hope to convey in the article? ( A )A. If fired, don't give up, and you will find a fulfilling career.B. If fired, you should find a way back.C. If fired, your wings will help you.D. Losing a job is the biggest trouble in one's life.II. Complete the following summary of the text by filling in the blanks with words. The initial letter of each word has been given to you.(1) Fresh out of Barnard College and the Speedwriting Institute (Department), I was lucky enough to find a job as a (2) secretary to the editor of Coupon Magazine which was advertising dependent. I had distinctly illegible handwriting. In a letter to one of the heads of a major corporation, I (3) mistakenly wrote the d in ads as an s. The president who was invited received the letter to "have his ass in four colors" in our (4) publication. I was fired, but lucky enough to become the (5) copywriter of the editor. Firings happened later in my life. But with persistence, I gained my success. (6) Similar experiences happened to Sherrye Henry, Paul Jones, and Lynn Sherr. All of them chose to (7) persevere and they finally found ways back to a (8) fulfilling career. And they all learned that the pain and humiliation were (9) temporary. So don't be afraid to move on and try your (10) wings. Rally your support system. Firing doesn't mean your life is over. It might turn out to be the best thing that ever happened to you.VocabularyI. Choose the answer that best completes each sentence.1. ___A__ your advice (->advise), much trouble was avoided.A. Thanks toB. Supposes toC. SinceD. Despite2. She was __C___ in (pursue->) pursuit (law suit诉讼案) of her singing star. She followed him on most occasions.A. excessive过度的B. spontaneous同时/ 及时的C. overzealous 可得到的A. illegibleB. illegalC. obviousD. understandable4. By the way, I __B___ really must correct a false impression that I gave just nowA. attentively关切地B. inadvertently=carelessly (不注意的, 疏忽的, 无意中做的)C. intentionally=on purpose故意地D. insensibly不明智地5. The magazine has ceased (#stopped; cease fire# stop fire) __C___ in the financial crisis.A. publicity (n. 宣传->publicize: vt.)B. (promote->加薪/晋级->) promotionC. publication (n.)D. (prominent卓越的, 显著的, 突出的->) prominence (n.)6. Grandpa, who was born at the dawn (n. /vi. 黎明) of last century, experienced one of the most ___A__ periods of history.A. (turbine->) turbulentB. practical实用的C. legendary (adj.)富有传奇色彩的; leonovoD. perfect完美无缺的7. History shows us with what ___B__ the human race survives.A. difficultyB. tenacity坚韧不拔C. trouble (n. /vt.)D. [find->found->found; found->founded->founded->] foundation (基础)8. Prisoners are purposefully and ___D__ occupied (busy), thus reducing (减少) the risk of unrest (骚动). It also helps them develop (养成) the habit of doing meaningful work.A. pleasantly (令人愉快地)B. adversely (不利的, 敌对的, 相反的)C. (destructively<->) constructively建设性地D. gainfully有益9. One's school life seems (happy->) happier in __A___ than it really was (比实际情况好).A. retrospectB. respect (n./vt.)C. (solve->solution->solvent溶剂->resolve下决心->) resolution决心D. (resist->) resistance抵制10. He hasn't decided whether to pursue the __B___ for the senate (参议院-> senator参议员).A. operationB. campaignC. (war->) battle战役D. movement运动II. Fill in the blanks with the words or phrases given below. Change the form where necessary. persevere rally temporary stand on one's owncelebrity humiliation convention be on the air foldtenacity head for desperate impartdeject campaign1. They are determined to (=decide to do) persevere in the fight no matter how hard (=difficult) it is.2. After negotiation, they just reached a temporary agreement.3. That program has been on the air for 10 years.4. He is the one who never folds (fails/ bends in/ gives in屈服于压力) under pressure.5. He suffered (蒙受经济损失/ 遭受精神折磨, ~from an illness/ great loss of money) the humiliation of being forced to resign (辞职).6. After the football game, the players (=sportsmen/ athletes) headed for the bus.7. At the recent convention (meeting/ conference), the Democratic Party has elected its presidential (candle->) candidates ().8. They made a desperate attempt (try孤注一掷) to save the company from bankruptcy [->bankrupt 破产的; prevent sb. from doing阻止某人做某事]9. In the long (hike->) hiking (长途跋涉), they paused to refresh (relax) themselves and rally (重整旗鼓) their strength.10. A teacher's aim is to impart (传授convey) knowledge.TranslationPut the following paragraphs into Chinese.Sherrye, returning home to New York City after a successful political career with the Clinton Administration and working on the Hill, was looking forward to a change of pace as a development officer for a large nonprofit. When the organization hit turbulent financial water, and she was the last one in, she was the first one out.Each of these people found a way back to a fulfilling career. And they all learned that the pain and humiliation are temporary. So don't be afraid to move on and try your wings. Rally your support system. Persevere! Firing doesn't mean your life is over. It might turn out to be the best thing that ever happened to you.参考译文：雪莉成功地在克林顿政府任职，在国会山工作之后回到家乡纽约市，在一家大型非营利机构做开发主管，她期望以此放缓工作节奏。

计算机专业英语课后问答题答案5

第五章1.Describe system software. What are the four types of system programs?System software works with end users, application software, and computer hardware to handle the majority of technical details. System software is not a single program.Rather it is a collection or a system of programs that handle hundreds of technical details with little or no user intervention. System software consists of four types of programs: • Operating systems coordinate computer resources, provide an interface between users and the computer, and run applications.• Utilities, also known as service programs, perform specific tasks related to managing computer resources.• Device drivers are specialized programs that allow particular input or output devices to communicate with the rest of the computer system.• Language translators convert the programming instructions written by programmers into a language that computers understand and process.2.What are the basic functions of every operating system? What are the three basicoperating system categories?Every operating system performs various functions. These functions are:• Managing resources:These programs coordinate all the computer’s resourcesincluding memory, processing, storage, and devices such as printers and monitors. They also monitor system performance, schedule jobs, provide security, and start up thecomputer.• Providing user interface: Users interact with application programs and computer hardware through a user interface.• Running applications: These programs load and run applications such as wordprocessors and spreadsheets. Most operating systems support multitasking, or the ability to switch between different applications stored in memory.The three main categories of Operating systems are:• Embedded operating systems - The entire operating system is stored within orembedded in the device and permanently stored on ROM.• Network operating systems (NOS) are used to control and coordinate computers that are networked or linked together.• Stand-alone operating systems control a single desktop or notebook computer.3.Explain the differences and similarities between Windows, Mac OS, and Linux.They all perform the basic functions of an operating system. They manage resources, provide a user interface, and run applications. They all use a graphical user interface, and can network small groups of computers.The differences are as follows:Windows– has 90 percent of the market operating system market share, moreapplication programs are developed to run under Windows than any other operating system, designed to run with Intel and Intel-compatible microprocessors. The new version, Vista, has Advanced system security, a Three-dimensional workspace, and utilizes WinFS, makes it possible to locate files based on a description of their content.MAC OS- Designed to run on Apple machines, but with the latest version can also run on Intel microprocessors. It is not as widely used as Windows, but is one of the most innovative operating systems. It includes utilities such as Spotlight which is anadvanced search tool that can rapidly locate files, folders, email messages, addresses, and much more, and Dashboard Widgets which are a collection of specialized programs that will constantly update and display information.Linux– Of the three operating systems, it is the only one that is an open source. It isa version of UNIX. It runs on powerful microcomputers and by servers on the Web. Itencourages others to modify and further develop the code.4.Discuss utilities. What are the five most essential utilities? What is a utility suite?Utilities are specialized programs designed to make computing easier. The mostessential are• Troubleshooting or diagnostic programs that recognize and correct problems, ideally before they become serious.• Antivirus programs that guard your computer system against viruses or otherdamaging programs that can invade your computer system.• Uninstall programs that allow you to safely and completely remove unneededprograms and related files from your hard disk.• Backup programs that make copies of files to be used in case the originals are lost or damaged.• File compression programs that reduce the size of files so they require less storage space and can be sent more efficiently over the Internet.Utility suites combine several programs into one package. Buying the package is less expensive than buying the programs separately.5.Explain the role of device drivers. Discuss the Add Printer Wizard and WindowsUpdate.Every device, such as a mouse or printer, that is connected to a computer system has a special program associated with it. This program, called a device driver, works with the operating system to allow communication between the device and the rest of thecomputer system. Each time the computer system is started, the operating system loads all of the device drivers into memory.Windows’ Add Printer Wizard provides step-by-step guidance for selecting theappropriate printer driver and installing that driver.Windows Update makes it easy to update the drivers on your computer.。

生物专业英语课后练习题含答案

生物专业英语课后练习题含答案1. Multiple Choice1.Which of the following is the most important considerationwhen designing a polymerase chn reaction (PCR)?A. The length of the primerB. The temperature of the PCRC.The amount of DNA in the sample D. The thermal stability of the DNA polymeraseAnswer: D2.Which of the following describes the function of arestriction enzyme in molecular biology?A. Restriction enzymes are used to replicate DNA.B.Restriction enzymes are used to sequence DNA. C. Restrictionenzymes are used to cut DNA at specific sites. D. Restrictionenzymes are used to amplify DNA.Answer: C3.The gel electrophoresis separates DNA fragments according towhich of following parameters?A. SequenceB. SizeC. ConcentrationD. ChargeAnswer: B4.Which of the following is not a component of a typicalprokaryotic cell?A. NucleusB. Cell wallC. RibosomeD. PlasmidAnswer: A5.Which of the following is responsible for the majority ofoxygen production on Earth?A. FungiB. AlgaeC. ProtozoaD. BacteriaAnswer: B2. Short Answer1.What is the difference between genotype and phenotype?Genotype refers to the set of genes an organism carries, while phenotype refers to the observable trts that result from the interaction between the organism’s genes and its environmen t.2.Describe the process of translation.Translation is the process by which the information encoded in mRNA is used to synthesize a protein. It occurs on ribosomes, which contn two subunits (the small subunit and the large subunit).The process begins with the small subunit binding to the mRNAmolecule; this initiates the process of recognition of the start codon (AUG). Once the start codon is identified, the ribosome will recruit the first tRNA (transfer RNA) molecule, which carries an amino acid. The amino acid is then added to the growing peptide chn as the ribosome moves along the mRNA molecule, one codon at a time. This continues until a stop codon is reached, at which point the ribosome releases the newly synthesized protein, and the mRNA molecule is degraded.3.What is the difference between prokaryotic and eukaryoticcells?Prokaryotic cells are simpler in structure than eukaryotic cells and do not have a nucleus or membrane-bound organelles. They are typically much smaller than eukaryotic cells. Eukaryotic cells, on the other hand, have a nucleus and many membrane-boundorganelles (such as mitochondria, chloroplasts, and theendoplasmic reticulum). They are generally larger and more complex than prokaryotic cells.3. True or False1.Bacteria are always harmful to humans.False2.The most diverse group of organisms on Earth is arthropods. True3.The Calvin cycle is the process by which photosynthesisoccurs.True4.Fungi are eukaryotic organisms that are primarilydecomposers.True5.RNA splicing removes introns from the primary RNA transcript,leaving only exons.True4. MatchingMatch the following terms with their correct definition or function:1.EnzymeC. Protein molecule that acts as a catalyst in a biochemicalreaction2.GlycolysisD. The process by which glucose is broken down into pyruvate3.MitochondriaA. Organelle responsible for cell respiration4.NucleusB. Organelle responsible for the storage and transmission ofgenetic informationAnswer:1.C2.D3.A4.BConclusionThis set of practice questions is designed to test your understanding of some of the key concepts in biology. By exploringtopics like genetics, cell structure, and molecular biology, you can gn a deeper appreciation for the complexity and diversity of life on Earth.By engaging with these questions and testing your knowledge, you can become a more confident and capable biologist.。

大专(计算机专业英语)课后参考答案

参考答案Lesson 1Exercises1.（1）A （2）B （3）A （4）B （5）C（6）B （7）D （8）B （9）C （10）A（11）A （12）B （13）D2.（1）vacuum tubes（2）manage the functions of the computer, perform calculations（3）microprocessor, memory, disk drives（4）application software, system software（5）symbols, letters, numbers（6）a hard disk drive, a diskette drive（7）Word processing programs, used to prepare written documents;Electronic spreadsheet, used to analyze and summarize data;Database managers, used to organize and manage data and information;Graphics programs, used to visually analyze and present data and information;Communication programs, used to transmit and receive data and information;Integrated programs, which combine some or all of these applications in one program;（8）operating system3.（1）虽然电子计算机起源于近代（大约有50年），但计算过程自动化的思想却可追溯到当簿记、会计学和天文学变得让人感到枯燥乏味的时候。

专业硕士研究生英语课后答案

Unit 1Excuse NotesWord Bankanthology: n. a collection of artistic works which have a similar form or subject, often those considered to be the best 诗选/文选attest :v. to show sth. or to say or prove that sth. is true 证明choke: v. to stop breathing 窒息，哽住devilment : n. behavior that causes trouble but is usually intended to be playful or amusing 恶作剧distribute: v. to give sth. out to several people, or to spread or supply sth. 分发，发送epiphany: n. understanding 理解forge: v. to make an illegal copy of sth. in order to deceive 伪造，铸造gem: n. sb. or sth. that is very good, pleasing or useful 精品，非常有用的人genuine: adj. sth. genuine is what it seems to be; real 真的lucid: adj.clearly expressed and easy to understand or (of a person) thinking or speaking clearly 易懂的，明白的，清醒的omit: v. to fail to include or do sth. 省略，疏忽plight: n. an unpleasant condition, especially a serious, sad or difficult one 处境，状态seduction: n. the attractive quality of sth. 诱惑superintendent: n. people who is in charge of work done in a particular department, office, etc. 主管，负责人treason: n. lack of loyalty to one’s country, especially by helping its enemies or attempting to defeat its government 通敌，叛国罪vulgar: adj. rude and likely to upset or anger people 无理的，粗俗的Phrases and Expressionsbe evicted from: to be forced to leave somewhere 驱逐，赶走be worth of: deserving respect, admiration or support 值得的glance at: to give a quick short look 一瞥turn into: to change into 进入，（使）变成Reading ComprehensionChoose the best for each of the following.1. According to the passage, the teacher ____D____.A. is angry with his students.B. does not like his students forging excuse notes.C. blames the parents.D. teaches a successful writing class.2. Mikey missed school ____D____.A. because his grandmother fell down from the stairsB. because he did not like his teacherC. because his parents wanted him to be homeD. because he did not want to go to school3. When the students forged the excuse notes, they were ____A____.A. very smart and imaginativeB. boredC. indifferentD. excited4. The principal of the school ____B____.A. blamed the teacher for what he had done in class.B. praised the teacher for what he had done in class.C. was disappointed with the teacher.D. fired the teacher.5. Which of the following statements is NOT true? ( D )A. The students enjoyed the teacher’s writing class very much.B. The students were very creative in forging excuse notes.C. The teacher enjoyed teaching writing.D. The students did not enjoy the teacher’s writing class.II. Complete the following summary (summarize) of the text by filling in the blanks with words. The initial letter of each word has been given to you.His methods anything but conventional, Mr. McCourt created a lasting impact on his students through imaginative assignments in his (1)creative writing. He found that some of his students (2) forged excuse notes in the name of their parents. He does not angry with what the students had done; instead, he divided those notes into two (3)piles, one for the (4)genuine ones written by parents, the other for forgeries. The students were so smart that they could create a variety of (5)excuses. So the teacher decided to dig up their (6)talent in writing by asking them to write excuse notes. The students were so (7)absorbed in the writing that they almost forgot to have (8)lunch.At last the principal (9)praised the teacher for this successful teaching method. Both the teache and the students were happy about the writing class. And the teacher realized everyone (10)needed an excuse. Understanding is essential to the teacher and the students.VocabularyI. Choose the answer that best completes each sentence.1. A number of __D___ works of art have been sold as genuine.A. falseB. beautifulC. famousD. forged2. To ___B__ one’s power is to commit a crime and eventually end up in jail.A. accuseB. abuseC. deduceD. excuse3. Seeing the speeding car, the policeman __B__ the driver to pull up at the curb.A. reckonedB. beckonedC. softenedD. stiffened4. Unfortunately, he hit a traffic jam and missed the train __B___ a few minutes.A. withB. byC. beforeD. for5. She gave a clear and __A___ account of her plans for the company's future.A. lucidB. dullC. unclearD. ambiguous6. Isn't it rather __C___ to talk about how much money you earn?A. politeB. boringC. vulgarD. pleasant7. The books will be __D___ free to local schools.A. contributedB. tributeC. attributedD. distributed8. The editor required him to __A___ some details of the article.A. omitB. permitC. summitD. illuminate9. Few of us can be unmoved by the __C___ of the Romanian orphans.A. lightB. mightC. plightD. moonlight10. I have to __B___ my reputation.A. detectB. protectC. intactD. preventII. Fill in the blanks with the words or phrases given below. Change the form where necessary.superintendent choke attest forge gemgenuine lucid omit turn into excuseglance at evicted disguise worthy imagination1. In the US. a school is superintendent in charge of the schools in a particular area.2. Thousands of people came out onto the streets to attest their support for the democratic opposition party.3. The expensive purse is made of genuine leather.4. Can you turn this article into English?5. She took a glance at her watch.6. I know why this happened. You don't have to find any excuse.7. He was evicted from the pub for drunken and violent behavior.8. This emperor is said to have paid many personal visits to various counties disguise as an ordinary citizen.9. Every year she makes a large donation to a worthy cause.10. Children often have very vivid imagination.TranslationPut the following paragraphs into Chinese.1. Most parental-excuse notes I received back in those days were penned by my students. They'd been forging excuse notes since they learned to write, and if I were to confront each forger I'd be busy 24 hours a day.2. My heart sank as the principal entered, along with the superintendent of schools. Neither acknowledged me. They walked up and down, peering at papers. The superintendent picked one up, showed it to the principal.3. Sooner or later, I figured, everyone needed an excuse. Also, if we sang today wecould sing tomorrow, and why not? You don’t need an excuse for singing.参考译文：1.我每天收到以父母名义写的请假条，很多是学生自己写的。

计算机专业英语课后答案

计算机专业英语课后答案第1章信息技术、互联⽹和你选择1. The keyboard, mouse display, and system unit are: 键盘、⿏标、显示器和系统单元是: hardware2. Programs that coordinate computer resources, provide an interface, and run applications are knownas: 协调计算机资源、提供接⼝和运⾏应⽤程序的程序被称为: operating systems3. A browser is an example of a: 浏览器就是通⽤应⽤程序的⼀个例⼦ general-purpose application4. Although not as powerful as a supercomputer, this type of computer is capable of great processingspeeds and data storage. 虽然没有超级计算机那么强⼤，但这种类型的计算机具有很⾼的处理速度和数据存储能⼒。

mainframe ⼤型计算机5. Apple' s Watch is what type of computer? 苹果⼿表是什么类型的电脑? wearable可穿戴6. RAM is a type of: RAM是存储器的⼀种 memory7. Unlike memory, this type of storage holds data and programs even after electrical power to thecomputer system has been turned off. 与内存不同的是，这种类型的存储即使在计算机系统断电后也能保存数据和程序 secondary8. The type of file created by word processors to save, for example, memos, term papers, and letters. 由⽂字处理程序创建的⽂件类型，如备忘录、学期论⽂和信件 document9. Uses the internet and the web to shift many computer activities from a user' scomputer to computerson the internet。

英语专业综合英语教程-第六册-课后练习答案(全)

Key to the Exercises--- An Integrated English Course - Book 6Unit 1 Technology in Reverse●Text ComprehensionI. CII. 1. F. Not all technology makes things complicated and wasteful; it is only retarded technology that makes things complicated and wasteful. Refer to Paragraph 1.2. T. Refer to Paragraph 5.3. F. It is true that the author acknowledges the great changes brought about by new technology, buthe believes these advantageous changes are often offset by a lot of technology-related waste. Refer to Paragraph 7.4. T. Refer to Paragraph 7.5. F. The author expresses his doubt in a sarcastic tone that cellular phones could really improvemarriages and save “family values”. Refer to Paragraph 9.● Language WorkI. Explain the italicized part in each sentence in your own words.1. highly regarded, intricate, attractive2. a sudden increase3. an event that will make you feel upset for a long time4. can supposedly help, at the same time5. need to be able to use6. we receive so many press releases that we find it difficult to deal with them7. an age where hi-tech has brought us noticeably great changes8. supposed, get away from us/be unattainable9. consequence, people who know nothing about technology, impeding10. usually, insignificantII. Fill in the banks with the appropriate forms of the given words.1. customized2. traumatized3. promotional4. paradoxical5. frivolity6. subscribers7. successors8. inanities9. institutionalized10. subsidyIII. Fill in each of the blanks with a word or phrase taken from the box in its appropriate form.1. are clogged with2. purports to3. a vista of4. bombarded…with5. exulted over6. scribbled all over7. find… alluring8. make a comeback9. call up10. tossed … into11. was eliminated12. compress… intoIV. Explain the meaning of the underlined word or phrase in each sentence.1. weak2. entrance to3. full of4. be compensated for by having the same amount deducted from his tax5. shows all the signs of6. excitement and danger7. spent the afternoon discussing8. increase her confidence9. very often10. quick diveV. Correct the errors in the following passage.VI. Fill in each blank in the passage below with ONE appropriate word.1. millionaires2. computer3. breed4. programs5. companies6. generation7. popularity8. provide9. sales10. times11. valuable12. life● Translation1.The program offers long-term care for the mentally retarded.2.He’s got a cumbersome, bulky, old computer—it’s slow and complicated to use.3. He tried not to look conspicuous and moved slowly along the back of the room.4. It would cause a tremendous upheaval to install a different computer system.5. The gold medal continues to elude her.6. Yo u’d be a fool not to embrace an opportunity as good as that.7. Her salary will go up by a hefty 10%.8. I scrawled a quick note to Hilary and put it under her door.9. There’s a smashing view from her office.10 The trip out there was swell, but the hotel was a bit crummy.II. Translate the following passage into Chinese.在我成长的房子里有一间屋子，我们把它称作图书馆。

英语专业高级英语1课后paraphrase答案

1) Little‎donkey‎s thread‎their way among the throng‎s of people‎2) Then as you penetr‎a te deeper‎into the bazaar‎, the noise of the entran‎c e fades away, and you come to the muted cloth-market‎.3) They narrow‎down their choice‎and begin the really‎seriou‎s busine‎s s of beatin‎g the price down.4) He will price the item high, and yield little‎in the bargai‎n ing.5) As you approa‎c h it, a tinkli‎n g and bangin‎g and clashi‎n g begins‎to imping‎e on your ear.1) Seriou‎s lookin‎g men spoke to one anothe‎r as if they were oblivi‎o us of the crowds‎about them.2) The cab driver‎’s door popped‎open at the very sight ofa travel‎e r.3) The rather‎arrest‎i ng specta‎c le of little‎old Japan adrift‎amid beige concre‎t e skyscr‎a pers is the very symbol‎of the incess‎a nt strugg‎l e betwee‎n the kimono‎and the minisk‎i rt.4) I experi‎e nced a twinge‎of embarr‎a ssmen‎t at the prospe‎c t of meetin‎g the mayor of Hirosh‎i ma in my socks.5) The few Americ‎a ns and German‎s seemed‎just as inhibi‎t ed as I was.6) After three days in Japan, the spinal‎column‎become‎s extrao‎r dinar‎i ly flexib‎l e.7) I was about to make my little‎bow of assent‎, when the meanin‎g of these last words sank in, joltin‎g me out of my sad reveri‎e.8) I though‎t someho‎w I had been spared‎.第五课1) Hitler‎was counti‎n g on enlist‎i ng capita‎l ist and Right Wing sympat‎h ies in this countr‎y and the U. S. A.2) Winant‎said the same would be true of the U. S. A.3) My life is much simpli‎f ied thereb‎y.4) I will unsay no word that I have spoken‎about it.5) I see the German‎bomber‎s and fighte‎r s in the sky, still smarti‎n g from many a Britis‎h whippi‎n g, deligh‎t ed to find what they believ‎e is an easier‎and a safer prey.6) We shall be streng‎t hened‎not weaken‎e d in determ‎i natio‎n and in resour‎c es.7) Let us redoub‎l e our exerti‎o ns, and strike‎with united‎streng‎t h while life and power remain‎.第六课1) The house detect‎i ve's piggy eyes survey‎e d her sardon‎i cally‎from his gross jowled‎face.2) Pretty‎neat set-up you folks got.3) The obese body shook in an apprec‎i ative‎chuckl‎e.4) He lowere‎d the level of his incong‎r uous falset‎t o voice.5) The words spat forth with sudden‎savage‎r y, all preten‎s e of blandn‎e ss gone.6) The Duches‎s of Corydo‎n– three centur‎i es and a half of in-bred arroga‎n ce behind‎her -- did not yield easily‎.7) "It is no go, old girl. I'm afraid‎. It was a good try."8) "That's more like it," Ogilvi‎e said. He lit the fresh cigar, "Now we're gettin‎g somewh‎e re."9) his eyes sardon‎i cally‎on the Duches‎s as if challe‎n ging her object‎i on.10) The house detect‎i ve clucke‎d his tongue‎reprov‎i ngly.第九课1)a man who became‎consta‎n tly preocc‎u pied by the moral weakne‎s ses of mankin‎d.2)Mark Twain first observ‎e d and absorb‎e d the new Americ‎a n experi‎e nce, and then introd‎u ce it to the world in his books or lectur‎e s.3)In his new profes‎s ion he could meet people‎of all kinds.4)With no money and a frasha‎t ed feelin‎g, he accept‎e d a job as report‎e r with Territ‎o rial Enterp‎r ise in Virgin‎i a City, ...5)Mark Twain began workin‎g hard to became‎well known locall‎y as a newspa‎p er report‎e r and humori‎s t.6)and when Califo‎r nia makes a plan for a new surpri‎s e, the solemn‎people‎in other states‎of the U.S. smile as usual, making‎a commen‎t "that's typica‎l of Califo‎r nia".7)The man who had made the world laugh was himsel‎f consum‎e d by bitter‎n ess.第十课1) We have some clever‎and unexpe‎c ted tactic‎s and we will surpri‎s e them in the trial.1) We have some clever‎and unexpe‎c ted tactic‎s and we will surpri‎s e them in the trial.2) The case had come down upon me unexpe‎c tedly‎and violen‎t ly.2) The case had come down upon me unexpe‎c tedly‎and violen‎t ly.3) The fundam‎e ntali‎s ts believ‎e in a word-for-word accept‎a nce of what is said in the Bible.3) The fundam‎e ntali‎s ts believ‎e in a word-for-word accept‎a nce of what is said in the Bible.4) That all life had develo‎p ed gradua‎l ly from a common‎origin‎a l organi‎s m.4) That all life had develo‎p ed gradua‎l ly from a common‎origin‎a l organi‎s m.5) Let's accuse‎Scopes‎of teachi‎n g evolut‎i on and let the court decide‎whethe‎r he is breaki‎n g the law or not.5) Let's accuse‎Scopes‎of teachi‎n g evolut‎i on and let the court decide‎whethe‎r he is breaki‎n g the law or not.6) People‎from the nearby‎mounta‎i ns, mostly‎fundam‎e ntali‎s ts, came to suppor‎t Bryan agains‎t those profes‎s ors, scient‎i sts, and lawyer‎s who came from the northe‎r n big cities‎and were not fundam‎e ntali‎s ts.6) People‎from the nearby‎mounta‎i ns, mostly‎fundam‎e ntali‎s ts, came to suppor‎t Bryan agains‎t those profes‎s ors, scient‎i sts, and lawyer‎s who came from the northe‎r n big cities‎and were not fundam‎e ntali‎s ts.7) As my father‎compla‎i ned angril‎y, "That's no jury at all. “7) As my father‎compla‎i ned angril‎y, "That’s no jury at all.”8) He is here becaus‎e unenli‎g htenm‎e nt and prejud‎i ce are widesp‎r ead and unchec‎k ed.8) He is here becaus‎e unenli‎g htenm‎e nt and prejud‎i ce are widesp‎r ead and unchec‎k ed.9) People‎had to pay in order to have a look at the ape and to consid‎e r carefu‎l ly whethe‎r apes and humans‎could have a common‎ancest‎r y.9) People‎had to pay in order to have a look at the ape and to consid‎e r carefu‎l ly whethe‎r apes and humans‎could have a common‎ancest‎r y.10) And the crowd, who were mainly‎fundam‎e ntali‎s ts, took his words showin‎g no fear as if they were prayer‎s, interr‎u pting‎freque‎n tly with "Amen".10) And the crowd, who were mainly‎fundam‎e ntali‎s ts, took his words showin‎g no fear as if they were prayer‎s, interr‎u pting‎freque‎n tly with "Amen".。

化学专业英语课后练习题含答案

化学专业英语课后练习题含答案题目：1.What is the molecular formula for acetic acid?2.What is the common name for sodium chloride?3.What is HNO3? What does it do?4.What is the chemical formula for ammonium nitrate?5.What is the difference between an organic and inorganiccompound?6.What is the difference between an acid and a base?答案：1.The molecular formula for acetic acid is C2H4O2.2.The common name for sodium chloride is table salt.3.HNO3 is nitric acid. It is a strong acid and is used in theproduction of fertilizers, explosives, and dyes.4.The chemical formula for ammonium nitrate is NH4NO3.5.An organic compound contns carbon atoms while inorganiccompounds do not.6.Acids release hydrogen ions (H+) in aqueous solutions whilebases release hydroxide ions (OH-) in aqueous solutions. Acids have a pH less than 7 while bases have a pH greater than 7.解析：1.Acetic acid is a weak acid with a sweet smell and taste. Itsmolecular formula is C2H4O2 and it is also known as ethanoic acid.It is used in the manufacture of various chemicals, solvents,coatings, and plastics.2.Sodium chloride is an inorganic compound with the chemicalformula NaCl. It is commonly used as a seasoning and preservative for food. It is also used in the chemical industry for various purposes, such as the production of chlorine, sodium hydroxide, and soda ash.3.Nitric acid is a strong acid with the chemical formula HNO3.It is a highly corrosive and toxic liquid that is used in theproduction of fertilizers, explosives, and dyes. It also has other industrial and laboratory applications, such as the etching of metals and the synthesis of organic compounds.4.Ammonium nitrate is an inorganic compound with the chemicalformula NH4NO3. It is a common fertilizer that is used to supply nitrogen to plants. It is also used as an explosive in mining, quarrying, and construction.anic compounds are based on carbon atoms, while inorganiccompounds do not contn carbon atoms. Organic compounds can befound in living organisms and are usually covalently bonded.Inorganic compounds are often ionic or covalent and are found in non-living things, such as rocks and minerals.6.Acids are compounds that release hydrogen ions (H+) in aqueous solutions, while bases release hydroxide ions (OH-) in aqueous solutions. Acids are characterized by a sour taste, and have a pH less than7. Bases are characterized by a bitter taste and slippery feel. They have a pH greater than 7. The pH scale is used to measure the acidity or basicity of a substance, with 7 being neutral.。

专业学位硕士研究生英语教程Unit-4词汇及课后答案(word文档良心出品)

Unit 4Art of LifeWord Bank（audio-:与听力有关<->visual）audible (able->ible): adj. that is heard or that can be heard 可听见的(basis->base: n./ vt.以为基础/根据; be based on sth.) basement: n. the lowest habitable story (可居住的楼层) of a building地下室beneath: prep. lower than; below低于…，在…下方betray(->betrayal/ treason): v. the act of committing treason against背叛bust: n. a sculpture representing a person's head, shoulders, and upper chest半身像callus: v. to form or develop a hardened tissue结痂（茧）cast: v. to form (liquid metal, e.g. ) into a particular shape by pouring into a mold铸造; broadcast广播choke: v. to have difficulty in breathing, swallowing, or speaking哽塞dab: v. to apply with short, poking strokes轻拍; patdimensional: adj. having, or seeming to have, length depth, and height空间的，维度的(dwindle->) dwindling: adj. decreasing; becoming less 流逝的estranged: adj. being (alien外星人->alienate->) alienated or made distant疏运的flick: v./ n. to touch or hit with a light, quick blow轻拍，轻击hibiscus: n. (US) a tropical plant with large brightly colored flowers芙蓉，木槿knead: v. to squeeze, press, or roll with the hands轻柔，按摩lotion: n. a (medical->) medicated liquid for external [apply(1)申请；应用] application洗剂（液）massage: (US) to rub parts of the body to aid (circulate-)) circulation or relax the muscles按摩necktie: n. a narrow fabric band of varying (different) length (wear->) worn around the neck and tied in a knot close to the throat领带; tie: vt. ~ a horse to a big tree.(patriot->爱国者) patriarch: n. a man who rules a family, clan (家族), or tribe (部落)族长(酋长); arc-/arch-穹顶(proud=)prideful: adj. arrogant (->arrogance); disdainful傲慢的，轻蔑的; be proud of sb./sth.=pride (vi.) on sb./sth.=take pride (n.) in sb./ sth.以某人或某物而感到自豪；reconcile: v. to settle or resolve调停，决绝, 和解; council议会；consult咨询->consultant 顾问(relief->) relieve: v. to cause a lessening or (alleviate->) alleviation of减缓; to relieve sb.=go to sb.’s reflief.=to rescue sb.解救某人sculpt (->sculpture): v. to shape, mold, or fashion (imitate模仿) especially with (precise->) precision雕塑shrug: v. to raise (the shoulders)耸肩snore: n. /vi. the act or an instance of snoring打鼾splatter: v. to spatter (v.溅污n.滴落), especially to move or fall so as to cause splashes飞溅[dwell居住；~on sth.老在想…]squeeze: v. to press gently, as in affection挤，捏(stubborn) stubbornness: n. firmness倔强; bear->bore->borntissue: n. a soft, absorbent piece of paper used as toilet paper, a handkerchief, or a towel纸巾toenail: n. the thin, horny, transparent plate covering the upper surface of the end of a toe脚趾甲; nail: n./ vt.钉子/指甲tuft: n. a short cluster (簇群) of hair, or grass一族，一从vanity: n. excessive pride in one's appearance or accomplishments虚荣；Vanity Fair名利场vengeance: n. infliction of punishment in return for a wrong committed报复，复仇；revenge: n./vivolunteer: n./vi. to offer to give out of one's own will (意志/ 遗嘱)志愿whimsical: adj. erratic (n./ adj. 不稳定的, 奇怪的) in behavior or degree of unpredictability 反复无常; predict预测；dict-: speak. dictionary词典/ 字典wiggle: v. to move or cause to move from side to side with short irregular (<->regular) twisting motions扭动，摆动Phrases and Expressionsat the far end of: at the distant end of在另一边get in touch with: to maintain (=keep) contact with保持联系[contact sb. by the (telephone) number]hold (->held->held) on to: to continue to do something; persist坚持/ 抓住; hold on (=wait for a moment)<->hang up挂断电话in an attempt to: try to do sth./ making an effort to do sth.力图，试图make peace: to maintain or observe (遵守/ 维和shrug...off使变色,弄脏,伤害名誉) 耸肩表示不屑; stain (n./ vt)污渍Reading ComprehensionI. Choose the best for each of the following.1. "It was another of the things I had watched his helpers do for months, and now, in an attempt to hold on to what I could of him, I had volunteered to do it myself" (Para. 3) Here the word "another" refers that ( D )A. "Forgive yourself before you die. Then forgive others."B. they were callused and curled, and his toenails were yellow.C. Morrie liked being held and touched. And at this point, anything I could share with him to make him happy, I was going to do.D. I had a small jar of lotion, and I squeezed some into my hands and began to massage his ankles.2. What did Morrie regret in his life according to the passage? ( C )A. Forgiveness and tolerance.B. Impatience and carelessness.C. Pride and vanity.D. Peace and stillness.3. Why did Morrie say he was lucky? ( A )A. Because he had got enough time to reconsider his life.B. Because he had accepted his friend's explanation and rebuilt their friendship.C. Because he met his best friend in his life.D. Because he got comfort from his friends.4. "I rolled his toes between my fingers, lost in the task." (Para. 30) Here the word "lost"implies that the author lost ( D )A. his best friendB. his valuable memoryC. his heartD. himself in deep thought5. Why did Mitch hesitate when Mr. Morrie wanted him to be his another son? ( C )A. Because he was reluctant to be Morrie's son.B. Because he thought Morrie was not qualified.C. Because he thought it somehow seemed to betray his own father.D. Because he thought they were not so intimate.II. Complete the following summary of the text by filling in the blanks with words. The initial letter of each word has been given to you."Forgive yourself before you die. Then forgive others."(lie->) Lying on his bed, Morrie was so seriously ill that he could not even (1) wiggle his toes. I came to see him on a rainy day. Having seen his sickly (sick=ill; car-sick; sea-sick; air-sick; sickly: adj.有病的, 苍白的) face, I felt so sorry for him. At that time (Then), I (2) volunteered to do some massage for him. Also, of course, Morrie liked being (hold) held and (3) touched. And at this point, anything I could do to make him happy, I was going to (would) do.Morrie then started a topic of (4) forgiveness with me. He told me that it is most (very) important not only to forgive (5) others but (6) ourselves. In order to prove it, he recalled a sad story between his friend Norman and him. It pained (vt.) him so much. He also said he was lucky to get enough time to think of his life, while I felt so sad because of I pressed my thumb into his (7) hardened flesh and he didn't even feel it. He also reminded me of things pulling (acting) in different (8) directions. [remind sb. of sth.提醒某人某件事]Later he said movingly (很动人地) that he wished I were his another son. At first, I felt afraid, as if (9) accepting his words would somehow (10) betray my own father. But just for a while (moment) I realized that all I was afraid of was saying good-bye.VocabularyI. Choose the answer that best completes each sentence.1. This will help to __B___ the hardship of the [seek (political) refuge寻求避难] refugees (难民).A. relish (mean意味)B. relieveC. (vivre->) revive (再生/恢复/苏醒)D. rely (on)=depend (on)依赖2. She (feel->) felt the ___A__ (compete->) competition between the two brothers.A. intense (激烈的)B. intensive(密度高的)C. intention (n. 打算目的)D. intend (vt.打算)3. The bride (新娘) and (bride)groom (马夫/ 新郎) promised to __D___ each other through sickness and health (->healthy).A. nag (唠叨a nagging wife)B. blameC. spoil [宠坏/弄砸了a ~ed (spoilt) child)D. cherish (vt. hope)4. You could feel the __B___ in the room as (when) we waited for our exam results.A. intense (adj.)B. tension (n.)C. tense (1.紧张的; 2.n.时态; 3.密度)D. (extensive<->) intensive (密度或强度)5. Angela __D___ with disappointment when she was told that she had not got the job.A. signed [1.vt.署名; 2. n. (sign + nature=) signature签名]B. [signal:1.n.信号; 2.vt.发信号) signaledC. persisted (~in sth./doing sth.=insist on sth./ doing sth.坚持做某事)D. sighed (叹气)6. If he can just ___C__ a little longer, we can give him a hand (help帮…一把).A. hold back (restrict保留)B. hold inC. hold on=waitD. hold up=block阻塞7. This is a political __B___ an (economy经济) economic (与经济有关的；economical节约的) question.A. as wellB. as well as=andC. as muchD. as usual=as before8. She can __C___ her troubles and keep (smile->) smiling.A. keep off远离B. take off起飞/开始/脱衣服C. shrug off表示不以为然D. lay off=drop裁员9. The two captains (船长/队长/上校/上尉;hat)__C___ a coin [(1)n.硬币; (2)vt.生造词] before the match.A. tossB. are tossedC. tossed抛D. tossed for10. I haven't really kept __A___ people I knew at school.A. in touch withB. out of touch withC. to the touchD. touching=moving感动人的II. Fill in the blanks with the words or phrases given below. Change the form where necessary. squeeze massage choke vanity forgivetuft dimension reconcile flick audiblesnore mourn betray forget strange1. Would you squeeze some oranges and make (for) me a glass of juice?3. The bird had a tuft (4. He almost choked to death on a fish bone.5. He has forgiven you for insulting (侮辱) him, and is trying to save you.[Save me/ Help me->help!]6. The (electric resistance) resistance group was betrayed to the government by one of its own members.7. He and his brothers were reconciled (和解) after a fierce (=severe) family quarrel.8. Space is considered to be three-dimensional.9. All shops will be closed today as a sign of (morning#) mourning for the king.10. The audience (听众/ 观众) applauded (clapped) loudly at the end of the concert.TranslationPut the following paragraphs into Chinese.This was a few days after the "Nightline" interview. The sky was (raining#) rainy and dark, and Morrie was beneath a blanket. I sat at the far end of his chair, holding his bare feet. They were callused and curled, and his toenails were yellow. I had a small jar of lotion, and I squeezed some into my hands and began to massage his ankles.It was another of the things I had watched his helpers do for months, and now, in an attempt to hold on to what I could of him, I had volunteered to do it myself. The disease had left Morrie without the ability even to wiggle his toes, yet he could still feel pain, and massages helped relieve it. Also, of course, Morrie liked being held and touched. And at this point, anything I could do to make him happy, I was going to do.参考译文：这是“夜线”专访的几天以后，天空中阴霾密布。

英语专业版英语教程四第三单元课后习题及答案 Microsoft Word 文档

Unit 3Vocabulary exercisesⅠ. Explain the underlined part in each sentence in your own words.1. It is my personal belief that human potential can only be realize by theglobalization of ideas.2. ...the Internet may be responsible for furthering the fragmentation of society byalienating its individual users.3. ...he said he was "addicted," and has "forced" himself to go off-line.4. Automobile ownership because commonplace and suburbs werecreated."Progress" was their mantra.5. However, based on my personal experience I can understand how, as they surfthe web some folks might be confronted with cognitive overload.6. Some would argue that virtual existences created by some users who debate,shop, travel and have romance on line are in fact not real.KEY1. ability to develop, achieve or succeed2. causing to feel very distant from or not welcome to others3. liked it very much and wanted to spend as much time doing it as possible4. a word or phrase which is often repeated to express a belief5. more information than one can cope with6. a set of images and sounds produced by a computer which seems so real that formost purposes it can be regarded as realⅡ. Choose the word or phrase that can replace the underlined part in each sentence without changing its original meaning.1. The president warned, "America must get rid of the hangover we all havebecause of economic binge we just went through," referring to the long period of inflated stock prices that sent Americans streaming into the market.A. indulgenceB. speculationC.habitD.inflation2. There is a small difference in meaning between the two words.dB. s lightC. moderateD.minimal3. Crab connoisseurs need not lament because king crab legs are still available atthe festival, along with plenty of other seafood.A. mournB. fell regretC. depressD.dissatisfy4.There's always intense media coverage of airplane crash and that can really playinto people's fears and skew their perceptions of how safe it is to fly.A. misconceiveB.changeC. distortD.preoccupy5. The creature survive in a thin atmosphere of hydrogen and carbon and dioxideand in a special brew of volcanic ash altered to simulate the properties of Martiansoil, including its density, grain size and magnetic properties.A.pretend to beB.imitateC.reproduceD.unify6. This budget place short-term, political partisan gratification ahead of the nation'sneeds.A.satisfactionB.pleasureC.nominationD.bonus7. She gradually perceived that her parent had been right.A.noticedB.knewC.scceptedD.realized8. Reputation is important and a big international bank just can't afford to alienateclient in countries around the world.A separate B.give up C.discord D.distanceKEY.1. A2. B3. B4. C5. B6. A7. D8. DⅢ. Fill in the blank in each sentence with a phrase taken from the box in its appropriate form.at the expense of prior to give....pause to think take advantage ofbe availiable for in earnest for better life be confront with1. John's mind is always full of fantasies. He dreams of changing theworld________.2. Edward Stuart became a brilliant scholar, but only at__________ his health.3. The corporation was determined to push forward the policy of reform, but thenew system_________great difficulty at the start.4. In order to gain the utmost amount of benefit, this corporation________theexceptional opportunities open in exports.5. It present in satirical terms point made_________by catholic writers, whichproved to be a success.6. Two tennis courts and a swimming pool_______the regular members of the club,but the season tickets are only valid for three month.7. According to the Federal Bureau of inspection, a man seen hanging around thearea_____the shooting could have been involved in the assassination of the President.8. An opposition statement said he hoped theagreement________them________about the futility of violence.KEY1. for the better2. at the expense of3. was confronted with4. took advantage of5. in earnest6. are available for7. prior to 8. would give ... pause to thinkⅣ. Explain meaning of the underlined word or phrase in each sentence.1. Large deposit of limestone and clay can be found in the northern reaches of thestate of Washington.2. Several colleges and universities in the United States are now requiring that theirstudents purchase personal computers.3. The use of mechanical refrigerators became widespread in United States in the1920's.4. Could we go out tomorrow night instead? I'd rather have a quiet evening intonight.5. Becky will fill you in on what happened at the last meeting.6. You can lose yourself in a sea of identical hairstyles and thought styles.KEY1. expanses2. thinking it necessary3. commonplace4. at home5. tell you6. large numberGrammar exerciseⅠ. Put the following into indirect speech.1. " I've been in London for a month, but so far I haven't had time to visit thetower," said Robert.2. " I was intending to do it tomorrow," he said, "but now I don't think I'll be ableto."3. "Why are so many people interested in on-line shopping?" asked the boy.4. "Don't make mountains out of molehills, Mary," John said.5. "When the bell rings take the meant out of the even," my mother said.6. "Let's surf the Internet ," said Ann.7. "Need I eat it all,mummy?" said the child." Yes, dear, you must, " said the mother.8. "Tom, you shouldn't spend all time chatting on the Internet," Mr Smith said. KEY1.Robert said he had been in London for a month, but so far he hadn't had time tovisit the tower.2. He said he had been intending to do it the next day, but then he didn't think hewould be able to.3. The boy asked Why so many people were interested in on-line shopping.4. John told Mary not to make mountains out of molehills.5. My mother told me to take the meat out of the oven when the bell rang.6. Ann suggested surfing the Internet.7. The child asked his mother if he had to/need eat it all and she said that hemust/had to.8. Mr. Smith advised Tom not to spend all his time chatting on the Internet.Ⅱ. Combine the sentences in each group into one, using at least one absolute construction.1. a. There had been no rain. b. The ground was dry.2. a. When I walked in, Grandpa was sitting at the kitchen table.b. The newspaper was spread before him.3. a. The boys leaned against the willow tree.b. Their fishing poles rested on sticks.c. Their eyes gazed at the bobs floating on the ripples4. a. Mark went homeward alone.b. His heart was full of strange emotion.5. a. The discussion had been completed.b. The chairman adjourned the meeting for half an hour.6. a. The cowboy dominates the pages of many magazines.b. His hair is dark and curly.c. His broad shoulder are sloping yet powerful.d. His expression is calm and confident.KEY1. There having been no rain, the ground was dry.2. When I walked in, Grandpa was sitting at the kitchen table, the newspaper spreadbefore him.3. The boys learned against the willow tree, fishing poles resting on sticks, eyesgazing at the bobs floating on the ripples.4.Mark went homeward alone, his heart full of strange emotion.5. The discussion completed, the chairman adjourned the meeting for half an hour.6. The cowboy dominates the pages of many magazines, his dark and curly, hisbroad shoulders sloping yet powerful and his expression calm and confident. Ⅲ. Fill in the blank with the gerund or the infinitive of the verb given in the brackets.1. I try to______(pacify) him but he refuse to ______(pacify) and went on_____(grumble)2. I am looking forward to______(see ) you.3. I object to _____(be treated) like a child.4. I don't feel like ___(do) on lined shopping.5. He hates ______(answer ) the phone, and very often just let it ____(ring)3. Two whole pages are devoted to ____ (report) yesterday's bomb explosion.KEY1. pacify, be pacified, grumbling2. seeing3. being treated4. doing5. answering, ring6. reportingⅣ. Review the following sentences. Start with the words given.1. He had hardly arrived when she started complaining.Hardly ________________________________________________2. Once Manton gets logged on the Net, he rarely care anything else.Rarely ________________________________________________3. You must not touch this switch under any circumstances.Under no circumstance ___________________________________4. They have never known such hardships in all their lives.Never _________________________________________________5. He worries so much about his financial position that he can't sleep at night.So much _______________________________________________6. He spoke not only more correctly but also more convincingly.Not only _______________________________________________7. They succeeded only after several trails.Only __________________________________________________KEY1. Hardly had he arrived when she stared complaining.2. Rarely does Maton care about anything else once he gets logged on to the Net.3. Under no circumstance must you touch this switch.4. Never in all their lives have they known such hardships.5. So much does he worry about his financial position that he can't sleep at night.6. Not only did he speak more correctly but also more convincingly.7. Only after several trials did they succeed.Ⅴ. Make sentences of your own after the sentences given below, keeping the underlined structures in your sentences.1. It is my personal belief that the human potential can only be realized by theglobalization of ideas.2. He said that he felt like an alcoholic, in that moderate use of the Internet was justnot possible for him.3. All of this being said, I believe that the key to realizing the potential of theInternet is in achieving balance in out lives.KEY1. It is my hope that you will not give up your effort.It was my belief that our team will win the game.2. I am ready to accept your proposal in that I believe it to be the best you can offer.This machine differs from other one in that it is more powerful.3. All things being considered, I think I ought to award the scholarship to John.So many members being absent, the meeting had to be put off.TranslationⅠ. Translated the following sentences in to English, using the words or phrases given in the brackets.1. 15年来，医生们一直用抗癌药治疗这种疾病的，这些药就像大锤一样打垮患者体内的防御力量。

专业英语课后习题答案

growing annuity?
perpetuity: pv = c/r
growing perpetuity: pv = c/(r-g)
annuity: pv = (c/r) [1-1/(1+r)t]
growing annuity: pv = [c/(r-g)] [1-((1+g) / (1+r))t ]
concept questions - chapter 2
? what is the balance-sheet equation?
assets = liabilities + stockholders equity
? what three things should be kept in mind when looking at a balance sheet? accounting liquidity, debt vs. equity, and value vs. cost.
flows wcalculate the value of a stock with a dividend-growth (1)zero
growth;(2)constant growth (3)differential
(1)p=div/r (2)p=div/r-g (3)p=(div t+1 /r-g )/ (1+r))t
专业英语课后习题答案
【篇一：专业英语课后答案】
?what are the three basic questions of corporate finance?
a. investment decision (capital budgeting): what long-term investment strategy should a firm adopt?

1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。

The stimulation of consumer for goods or services by advertising, publicity, personal selling, and so on is promotion.
Public relations is any communication or activity intended primarily to obtain goodwill or prestige for a company through publicity.
administration costs, compliance costs, excess burden
Exe.2
货币木位
金融屮介
货帀政策T具
特许权税
电了资金转账系统
负税能力原则
公开市场业务
工资税
自动取款机
养老基金
direct finance
standard of value
standard money
The sales volume and profitability of a product will change with the elapse of time.
Exe. 4
广告是指由知名人士有偿向公众展示某种商品、服务或者创意的行为。公司广告能为公司树立良好的形象。公益广告就有争议的社会和经济问题表明立场。产品广告主要针对某一特定商品或服务。如果把它用于刺激对一种新产品的需求，乂可称为出导广告。比较广告也属于产品广告，它把广告产品与竞争对手的知名产品进行比较。
intensive distribution
retail outlets
Exe. 3
Agents work on commissions based on their sales volume, and they have almost no say about policies of the company they represent.
影响零信店的一个最重要的因素是商店形象——即顾客如何看待该店与其他零售店的差别。商店形象可以从许多方面表现出来：员工待客友善、商品质量可靠、服务热情周到、店前交通便利。商店形象还会产生一种光晕效应：对一家商店的整体卬象甚至会影响到顾客对该店其他方面的看法。例如，对某一折价店印象很好的顾客可能认为该店的货比其他折价店的货质量要好些，即使它们是相同的商品。做广告有助于提高零售店的形象。
市场覆盖密度
接近客户
随机展示商品方式
wholesalers
distribution channels
government buyers
institutional advertising
sweepstakes
sales volume
pass-along rate
marketing institutions
demand deposit, savings deposit, hybrid savings and checking account, time deposits;
money-wiring, safety deposit boxes, financial advice, automated teller machines proportional, progressive, regressive
Exe.5
1.B2. C3. D4. C5.D
Key to Exercises of Unit 7
Exe. 1
medium of exchange, unit of account, store of value; commodity money, credit money, fiat money commercial banks, savings and loan associations, mutual savings banks, credit unions, life・in sura nee compa nies, pension funds
Key to Exercises of Unit 6
Exe. 1
exclusive, selective, intensive
merchant wholesalers, manufactures9sales branches, agents and brokers
premiums, sweepstakes, point-of-purchase displays
Federal Reserve System
individual income tax
debit card
progressive tax tax-exempt income property tax corporate income tax
商店摆放一些样品，顾客杳询商品H录，然后订购白己所需商品，所订商品从附近的仓库送到顾客手屮，这种零售方式称为目录展示零作店。在这种店购物时，顾客交上订单，获得一个号牌，然示等着叫号，即可去领取自己所需商品。这种零售方式跟厂家直销方式一样发展很快，白有个屮道理。目录展示零伟店跟其他卖同类商品的零伟店相比有很多成本优势：他们的销伟成本、摆放成本、服务成木与传统的零伟店相比通常都要低很多，即使它们也有许多品牌商品。他们的价格通常部很低——有时共至比他们专营的关键产品还要低一些，例如珠宝以及家用品。
The cost of advertising media varies greatly due to different market coverage, with TV the most expensive, while the cost of advertising on radio or newspaper is much cheaper.
prospecting, approaching, objection handling, closing of sale
source credibility, timing flexibility, lifespan
Exe. 2
目录展示零信店
促销组合
干扰度
质优价廉零伟店
潜意识广告
代理商和经纪人
总经销，独家代理