英语_秦荻辉_科技英语写作习题以及答案

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精品文档-科技英语(电子类)(第三版)(秦获辉)-第二部分(第十一课)

精品文档-科技英语(电子类)(第三版)(秦获辉)-第二部分(第十一课)

Lesson Eleven 第十一课
The power output of a transformer is necessarily less than the power input because of unavoidable losses These losses include resistance losses in the primary and secondary windings, and losses in the core due to hysteresis and eddy currents.
8 alternation n 交替; 交变
9 strengthen vt 加强
10 core
n

11 impress
vt
施加; 外加
Lesson Eleven 第十一课
12 input vt
13 primary a n
14 secondary n
15 necessarily 16 unavoidable 17 loss 18 due 19 hysteresis 20 eddy
n 输入 把……输入计算机 初级的 初级线圈 a 次级的 次级线圈 ad 必定, 必然 a 不可避免的 n 损失; 损耗
应得的; 约定的 n 滞后(现象); 磁滞作用 n 涡流
Lesson Eleven 第十一课 Phrases and Expressions词组和短语
1 transform A into B
Lesson Eleven 第十一课
[4] “with which” 开头的这个定语从句是修饰其 前面的名词“ease and efficiency”的, 它本身在从句中作 状语。 要注意之所以这里用了“with”是因为“with+某些

秦荻辉_科技英语习题以与答案

秦荻辉_科技英语习题以与答案

练习1I、将下列句子译成汉语,注意句中有些冠词的特殊位置:1. In this case the current (电流)exists for only half the cycle (周期)2. In such a case there is no current flowing in the circuit (电路)3. Sensitivity (灵敏度)is a measure of how small a signal (信号)a receiver(接收机)can pick up and amplify (放大)to a level useful for com muni cati ons.4. emay be as small a positive con sta nt as you please.5. Even so fundamental a dimension(量纲)as time was measured extremely crudely with sand and water clocks hundreds of years ago.6. Nonlinear distortion (非线性失真)can be caused by too large an input signal.7. The method used is quite an effective one.8. A series (级数)solution of this kind of problem allows as close a calculation of the error as needed.II、将下列句子译成汉语,注意句中" and”和"or”的确切含义:1. Air has weight and occupies space.2. In this way less collector dissipation (集电极功耗)results, and the efficiency increases.3. We can go one step farther and take into account the nonzero slope of the actual curves.4. Try hard, and you will work the nut (螺母)loose.5. The first step in analyzing a physical situation is to select those aspects of it which are essential and disregard the others.6. This satellite was used for communications between the United States and Great Britain, France and Italy.7. Some physical quantities require only a magnitude and a unit to be completely specified. Thus it is sufficient to say that the mass of a man is 85 kg, that the area of a farm is 160 acres, that the frequency of a sound wave is 660 cycles/sec, and that a light bulb consumes electric energy at the rate of 100 watts.8. Geothermal energy, or energy from within the earth, can be used to generate electricity.9. The current in a capacitor (电容器)leads (导前)the voltage by 90o, or, the voltage lags the current by 90o.10. The message is a logical unit of user data, control data, or both.III 、将下列句子译成汉语,注意句中分数和倍数的正确译法:1. By varying V BE only a few hundredths of a volt, the base current (基极电流)can be changed significantly.2. The standard meter is accurate to about two parts in one billion.3. Cromatographic (层析的)techniques have been developed to detect air pollutants at concentrations (浓度)of one part per million or less.4. The volume coefficient (体膨胀系数)of a solid is almost exactly three times its linear coefficient.5. The demand for this kind of equipment in the near future will be 20 times what it is.6. The wavele ngth of this musical n ote (音符)is7.8 ft, over three times Ion ger tha n thewavelength of the same note in air (2.5 ft).7. This causes the collector current (集电极电流)to change by a factor of approximately 38. This factor (因子)is now equal to 9, a reduction by a factor of 11.IV、将下列句子译成英语:1、火箭是由金属制成的。

秦狄辉 科技英语写作教程答案答案2001年版

秦狄辉 科技英语写作教程答案答案2001年版

练习 1 (on page 8)II. 将下列句子译成英语1.Nonlinear distortion can be caused by too large an input signal.输入信号太大会引起非线性失真(nonlinear distortion)。

ing the definition of slope, we can derive the equation which represents a straight line.利用斜率(slope)的定义,我们能导出(derive)表示直线的方程。

3.The expression f(x + h) – f(x) is frequently used in the study of calculus.f(x + h) – f(x)这一表达式(expression)经常用在微积分(calculus)方面。

4.An equation which can be written in the following form is known as a linear equation in oneunknown.能写成以下形式的方程被称为含有一个未知数(unknown)的线性方程(linear equation)。

5.In a computer, the tendency is to operate at as high a clock rate as possible.在计算机中,趋势是以尽可能高的时钟频率(clock rate)工作。

6.The voltage across this capacitor is a few hundredths of a volt.该电容器(capacitor)上的电压(voltage)为零点零几伏(volt )。

7.The output of the factory ten years ago was only one fifth what it is now [或:… only onefifth its present output].十年前该厂的产量(output)仅为现在的五分之一。

高中英语科技论文翻译练习题20题(答案解析)

高中英语科技论文翻译练习题20题(答案解析)

高中英语科技论文翻译练习题20题(答案解析)1.The development of artificial intelligence has brought about significant changes in various fields.A.人工智能的发展在各个领域带来了重大变化。

B.人工的智能发展在不同领域带来了重要的改变。

C.人工智能的进步在各类领域造成了显著的变化。

答案解析:A 选项翻译准确,符合中文表达习惯。

B 选项“人工的智能”表述不自然。

C 选项“进步”不如“发展”准确,“造成”没有“带来”贴切。

涉及语法知识为现在完成时态has brought about。

翻译技巧是准确理解英文词汇的含义,选择合适的中文表达。

2.Biotechnology has made remarkable progress in recent years.A.生物技术在近几年取得了显著的进步。

B.生物科技在最近几年有了非凡的进展。

C.生物技术于近年来获得了惊人的进步。

答案解析:三个选项意思相近,A 选项最为简洁自然。

B 选项“非凡的”稍显夸张。

C 选项“惊人的”也不太符合一般的翻译习惯。

涉及语法知识为现在完成时态has made。

翻译技巧是注意用词的准确性和简洁性。

3.Space exploration is a challenging but rewarding field.A.太空探索是一个具有挑战性但有回报的领域。

B.宇宙探索是个有挑战然而有收获的领域。

C.航天探索是一个充满挑战却有价值的领域。

答案解析:A 选项表述清晰。

B 选项“宇宙探索”不如“太空探索”或“航天探索”常用。

C 选项“有价值”与“有回报”意思相近,但“有回报”更能体现原文的意思。

涉及语法知识为but 连接的并列结构。

翻译技巧是根据语境选择合适的中文词汇。

rmation technology has revolutionized the way we live and work.A.信息技术已经彻底改变了我们生活和工作的方式。

科技英语_秦荻辉_科技英语语法习题以及答案

科技英语_秦荻辉_科技英语语法习题以及答案

科技英语_秦荻辉_科技英语语法习题以及答案练习 1I、将下列句子译成汉语,注意句中有些冠词的特殊位置:1. In this case the current(电流)exists for only half the cycle(周期).2. In such a case there is no current flowing in the circuit(电路).3. Sensitivity(灵敏度)is a measure of how small a signal(信号)a receiver(接收机)canpick up and amplify(放大)to a level useful for communications.4. ε may be as small a positive constant as you please.5. Even so fundamental a dimension,量纲,as time was measured extremely crudely with sandand water clocks hundreds of years ago.6. Nonlinear distortion,非线性失真,can be caused by too large an input signal.7. The method used is quite an effective one.8. A series,级数,solution of this kind of problem allows as close a calculation of the error as needed.II、将下列句子译成汉语,注意句中“and”和“or”的确切含义:1. Air has weight and occupies space.2. In this way less collector dissipation(集电极功耗)results, and the efficiency increases.3. We can go one step farther and take into account the nonzeroslope of the actual curves.4. Try hard, and you will work the nut(螺母)loose.5. The first step in analyzing a physical situation is to select those aspects of it which are essential and disregard the others.6. This satellite was used for communications between the United States and Great Britain, France and Italy.7. Some physical quantities require only a magnitude and a unit tobe completely specified. Thus it is sufficient to say that the mass of a man is 85 kg, that the area of a farm is 160 acres, that the frequencyof a sound wave is 660 cycles/sec, and that a light bulb consumes electric energy at the rate of 100 watts.8. Geothermal energy, or energy from within the earth, can be usedto generate electricity.o9.The current in a capacitor(电容器)leads(导前)the voltage by 90, or, the voltage lagsothe current by 90.10. The message is a logical unit of user data, control data, or both.III、将下列句子译成汉语,注意句中分数和倍数的正确译法:1. By varying V only a few hundredths of a volt, the base current(基极电流)can be BEchanged significantly.2. The standard meter is accurate to about two parts in one billion.3. Cromatographic(层析的)techniques have been developed to detectair pollutants atconcentrations(浓度)of one part per million or less.4. The volume coefficient(体膨胀系数)of a solid is almost exactlythree times its linearcoefficient.5. The demand for this kind of equipment in the near future will be20 times what it is.6. The wavelength of this musical note(音符)is7.8 ft, over threetimes longer than thewavelength of the same note in air (2.5 ft).7. This causes the collector current(集电极电流)to change by afactor of approximately β.8. This factor(因子)is now equal to 9, a reduction by a factor of 11.IV、将下列句子译成英语:1、火箭是由金属制成的。

秦狄辉精选科技英语阅读教程

秦狄辉精选科技英语阅读教程

• 5/6 five sixths
1/2 one [a] half
• Over seven tenths of the earth is water.
• The rest mass〔静止质量〕of the products of the explosion is less than the original rest mass by one tenthousandth of the original rest mass.
• Basic to understanding the binary number system is a familiarity with the powers of
• “2〞. 理解二进制数系的根底是要熟悉一下 “2〞

的各次幂。
II.Prepositions
• Complement:mostly the “as-phrase 〞 required by many verbs
• 我们得确定提起这块石头需要一个多大的力。
• We have to determine how large a force is required [needed; necessary] to lift this

stone.
Special habitual uses of the indefinite
如果有并列的名词性从句或定语 从句时,引导词一般要重复出现
• Suppose that the field at each charge has the direction of the vector E but that it is not uniform.
• 假设在每个电荷处的电场具有矢量E的方 向,但是这个场并不均匀。

科技英语

科技英语

②并非所有被动语态句子都能起到突出新信息的作用。 基于以上观点,现代科技工作者提倡用主动语态撰写科 技文章。例如《Science》和《Nature》等国际著名刊物在征 稿要求中提出稿件应尽量采用主动语态写作。
翻译例句 本文介绍了热能制冷技术和燃料电池的工作原理及其特 点。针对燃料电池汽车余热浪费大的特点,提出了利用其余热 制冷为燃料电池汽车空调提供冷源的方法,并对其可行性进行 了研究。 译文1:In this paper, the work principles and features of fuel cell as well as refrigeration technique driven by heat energy are introduced. Considering the present fact that a large amount of heat of fuel cell automobile is wasted, the program that cold source is provided for automobile airconditioner with the refrigeration driven by the heat has been proposed and the feasibility of it has been studied. 第一句使用被动语态,该句主语由17个单词构成,而谓语 只有2个单词,造成头重脚轻的结构。第二句为了使用被动语 态,出现了“悬垂分词”,不合英语语法。
It was unsatisfactory for industry to depend on supplies coming from so far away from the industrial areas of Europe. It was always possible that wars or shopping trouble could stop supplies.

2019高考英语专题复习写作之科技篇课后练习新人教版(含参考答案)

2019高考英语专题复习写作之科技篇课后练习新人教版(含参考答案)

高考英语专题复习:写作之科技篇专项练习你接受了一项写作任务,为英语校报写一篇科技报道。

[写作内容]*唾液样本:saliva sample[写作要求]只能用5个句子表达全部内容;[评分标准]句子结构准确,信息内容完整,篇章连贯。

写作之科技篇专项练习参考答案【参考范文】DNA DetectionWe can use saliva sample to detect whether people have major illnesses, predict whether people are particular about food and remind people to take proper exercise. People should pay 125 pounds for it. It takes four to six weeks to finish the report. After detection we can realize we should strengthen our bodies. It may cause too many worries.解析:对于基础写作用5个句子概括医疗新技术,要求必须用上所有的要点,不能遗漏。

对于概括短文大意,要抓住要点。

进行具体叙述时:1. 仔细阅读有关提示,弄清试题提供的所有信息。

2. 根据要表达的内容确定句子的时态、语态;就本文而言应该用一般现在时态及一般将来时。

3. 注意使用高级词汇和句式,以增加文章的亮点。

【考点定位】考查提纲作文。

【妙招点睛】本题所给用5个句子概括医疗新技术的材料是学生不太熟悉的内容,所以要尽量使用学生熟悉的句式来写,还必须用5个句子表达所有的信息。

此题主要考查阅读概括能力及语言的组织能力。

需要用一些高级句式及词汇来增加文章的亮点。

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练习1I、在下列每个句子的空白处填上适当的冠词(如果必要的话),然后将句子译成汉语:1. There has been _____ ever greater interest in this subject.2. The power rating is the maximum power the resistor can safely dissipate without too great _____ rise in temperature.3. Its primary disadvantage is _____ increase in noise.4. _____ successful design of the equipment requires _____ detailed knowledge of the performance specifications.5. In _____ Bohr model of the hydrogen atom, _____ single electron revolves around _____ single proton in a circle of radius R.6. The unit of frequency is _____ hertz.7. If _____ voltage is applied across _____ circuit, _____ electric current will flow in _____ circuit.8. _____ Fig. 5-1 shows _____ Oersted’s experiment.9. We should use _____ 18-volt battery here.10. _____ machine is _____ device for transmitting force to accomplish _____ definite purpose.11. _____ hydraulic press will be considered in _____ Chapter 14.12. _____ study of fluids in motion is one of _____ more difficult branches of mechanics because of _____ diversity of phenomena that may occur.13. It is easy to determine _____ value of _____ parameter μ.14. By _____ Eq. (2-1) we have _____ following relation.15. It is necessay to use _____ S-shaped tube here.16. The authors work at _____ University of Texas at _____ Arlinton.17. This is _____ R-bit transformer.18. _____ XOR gate must be used here.II、将下列句子译成英语,注意正确地使用冠词:1、这是一个h参数(parameter)。

2、现在我们转向(turn to)讨论一下局域网(local area networks)。

3、Bainbridge 质谱仪(mass spectrometer)是与光谱仪(optical spectrometer)一样重要的仪器。

4、必需求出为使一个电子通过(travel)这一段导线(length of the wire)需要多长的时间。

5、物质(substance)的密度(density)是其每单位体积的质量(mass)。

6、地球的半径(radius)为6.37×106米。

7、这两个参数(parameter)是相同的。

8、压力的增加总会引起体积的减少。

9、图(2-5)画出了式(2-2)所表示的情况。

10、电感(inductance)的单位是亨利(henry)。

11、输入信号(input signal)太大会引起非线性失真(nonlinear distprtion)。

12、利用斜率(slope)的定义,我们能导出(derive)表示直线(straight line)的方程。

13、f (x+h)-f(x)这一表达式(expression)经常用在学习微积分(calculus)中。

14、能写成以下形式的方程被称为含有一个未知数(unknown)的线性(linear)方程。

15、在计算机中,趋势是以尽可能高的时钟速率(clock rate)工作(operate)。

16、锡(tin)的熔点(melting point)没有铅(lead)的高。

(要求使用“have as … as”句型)17、这个平均速度(average speed)是末速度(final speed)的一半。

18、电(electricity)可以容易地被转变成其它形式的能量。

19、1831年,美国的约瑟夫·亨利(Joseph Henry)发现了电磁感应(electromagnetic induction)现象。

20、计算机是有几部分组成的。

III、将下列小段内容译成英语:化学是基于需要测量像长度、体积、质量和温度这样一些量的概念之上的。

这些测量是定量的(quantitative);也就是,它们具有与其相关的(associated with)数字。

在这一节,我们将考虑用在定量测量中的一些简单仪器。

我们还将考察(look at)用来表示这些被测的量的单位。

IV、根据所给的汉语文本,改正各英语文本中的错误:1、【汉语原文】UASMA协议采用了独特的幀结构。

【英语文本】UASMA protocol employs an unique frame structure.2、【汉语原文】一种双正交循环码M元扩频接收机的性能分析[这是一篇论文的标题]【英语文本】Performance analysis of a M-ary spread spectrum receiver using biorthogonal cyclic codes3、【汉语原文】最后,用这种方法设计了宽带阶梯阻抗变换器。

【英语文本】At last, broad stepped impedance transformer is designed by this method.4、【汉语原文】先应秘密共享系统安全性的动态分析和评估[这是一篇论文的标题]【英语文本】Dynamic analysis and evaluation of security for proactive secret sharing system5、【汉语原文】利用状态转移图,获得了系统的安全性概率。

【英语文本】With state-transition diagram, security probability of system is obtained.6、【汉语原文】该方法适用于任意形状的一维势垒。

【英语文本】The approach can be applied to one-dimensional potential barrier with arbitrary profile.7、【汉语原文】我们提出了一种基于牛顿叠代法的数值方法。

【英语文本】We propose a kind of numerical method based on the Newton’s iterative method.练习2I、将下列句子译成英语,注意正确使用并列连接词和从句引导词:1、普通的变压器(transformer)并不是理想的,所以(therefore)在其中会发生功率损耗(power loss)。

2、这物质能吸引铁质物体(iron object),甚至能使它们磁化(magnetize)。

3、这电路(circuit)由一个电池、一个电感器(inductor)、一个电容器(capacitor)组成。

4、试计算在a,b,c三点处的电场(electric field)。

5、这颗卫星用于美国与英、法、意之间的通讯。

6、物质(matter)是像空气、水或木头那样的东西。

7、假设线圈(coil)中的损耗为零、C = 500微法(μF)、波纹(ripple)为百分之二十。

8、人们发现采用(adopt)这一观点(point of view)更方便:一个运动的电荷(charge)能建立(set up)一个磁场(magnetic field)、这场对运动通过它的另一个电荷会施加(exert)一个力。

9、第6,7,8章论述人们所说的电脑。

10、学生们会认识到数学是科学概念(idea)的语言、科学是数学概念的源泉(source)、数学能够为重要的科学问题提供(furnish)极好的(brilliant)答案。

II、将下列句子译成英语,注意正确使用数词:1、该电路中的电流为电源(source)的短路电流(short-circuit current)的一半。

2、这种蓄电池(storage battery)的内阻(internal resistance)仅为零点零零几欧姆(ohm)。

3、其误差(error)为1012分之六。

4、这台计算机所储存的信息比那台多三倍。

(要求把“计算机”用作为主语的“主谓宾”结构的句型)5、月球的质量为地球的1/ 80.6、不久的将来对这种设备的需求量(demand)为现在的20倍。

7、这个元件(component)上的电压为零点几伏特(volt)。

8、现在其内部的压力是原来的三分之一。

III、将下列小段的内容译成英语:温度这一概念对我们大家来说都是熟悉的。

这是因为我们的身体对温差是非常灵敏的。

当我们拾起(pick up)一块冰时,我们感到冷,因为其温度低于我们手的温度。

在喝了一杯咖啡后,我们可能把它说成(refer to …as …)“热的”,“温的”(lukewarm)或“很糟的”(atrocious)。

在头两种情况下,至少我们在描述其温度超过(exceed)我们的(温度的)程度。

IV、根据所给的汉语文本,改正各英语文本中的错误:1、【汉语原文】这个电容器上的电压为零点零几伏特。

【英语文本】The voltage on this capacitor is zero point zero several volt.2、【汉语原文】这物体比那物体重四倍。

【英语文本】This object is four times heavy than that one is.3、【汉语原文】除非另有说明,我们假设使用的是硅管、I CBO可以忽略不计。

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