V、练习参考答案
练习1
I、
1、the（各项均为负。)
2、the; a （功率额定值是电阻器不会引起温度太大的上升而能安全地耗散的最大功率。）
3、an（这是均方根值伏特计。）
4、The; a（该设备的成功设计需要详细地了解性能指标。）
5、the; a; a（在氢原子的布尔模型中，一个电子绕一个质子以半径为R的圆周运转。）
6、the（电阻的单位是欧姆。）
7、an （这是一个h参数。）
8、/; /（图5－1画出了Oersted的实验。）
9、A; a; a（机器是能够传递力来完成某一确定目的的一种设备。）
10、/（水压机将在第14章加以考虑。）
11、the; the [/]（我们容易确定参数μ的值。）
12、/; the（根据式（2－1），我们得到以下的关系式。）
13、the; /（作者工作在位于阿林顿的得克萨斯大学。）
14、an（甚至当积分区间并不是无穷时，能够恰当地显示一个时函数的傅氏变换的仪器是多么重要啊！）
II、
1.Dr. Emmet graduated from Harvard University in 2001.
2.Professor Li earned his Ph.D. degree in mechanical engineering from the Xi’an
University of Technology in 1988.
3.Now we shall turn to the discussion of local area networks.
4.The Bainbridge mass spectrometer is as important an instrument as the optical
spectrometer.
5.How long a time [或How much time] is required to this experiment? The density
of a substance is its mass per unit volume.
6.An increase in pressure always causes a decrease in volume.
7.Fig. (2-5) shows what is expressed by Eq. (2-2).
8.The unit of inductance is the henry.
III、
1.The UAS MA protocol employs a unique frame structure.
2.Finally, a broad stepped impedance transformer is designed by this method.
3.Dynamic analysis and evaluation of the security of a proactive secret sharing
system
4.The approach can be applied to the one-dimensional potential barrier with an
arbitrary profile.
5.We propose a numerical method based on Newton’s iterative method.
练习2
I、
1. This circuit consists of a battery, an inductor and a capacitor.
2. Compute the electric fields at points a, b, and c.
3. This satellite is used for communications between the United S tates and Great Britain, France and Italy.
4. We assume that the antenna is vertical and that its loss is zero.
5. Chapters 6, 7, and 8 deal with transmission lines.
II、
1. Its error is six parts in 101
2.
2. This computer stores four times more information than that one (does).
3. The demand for this kind of equipment in the near future will be 20 times what it is.
4. The voltage across this component is a few tenths of a volt.
5. Now its internal pressure is one sixteenth what it was.
III、
1. This object is over five times heavier than that one is.
2. Unless otherwise stated, it is assumed that silicon transistors are used and that I CB O
can be neglected.
3. This circuit has the advantages of simple structure and easy adjustment.
4. Figs. 1, 2, and 3 show this process in detail.
5. For further information, consult references [3, 5, 9].
练习3
I、
1. This new type of computer has many advantages over the general type.
2. It is not difficult to solve this differential equation for the unknown quantity.
3. Of these five new chapters, the first one deals with the basic principles of negative feedback.
4. At this point/time, current differs in phase from voltage by 90o.
5. By analyzing [By the analysis of] the parameters of the instrument, we can understand its performance.
6. We will find out its average velocity over this distance.
7. The science of electronics is too important in the world today.
8. They solved this problem with great difficulty.
II、
1. For x＞1, there is no solution to this equation [this equation has no solution].
2. Upon [On] substituting [substitution of] these values into [in] the
equation, we obtained the following expression..
3. This circuit is similar in operation to that of Fig. 1-10.
4. This computer is very good in performance.
5. These waves travel only in one direction.
III、
1. This paper presents a new method for the recognition of radar target s.
2. The influence of the moving state of the target on the tracking accuracy of the EKF is great.
3. Another comsat was launched on the morning of the 8th of October.
4. V oltage is measured in volt s.
5. They will leave for Beijing to attend an international conference on mobile communication.
6. Unless otherwise stated, it is assumed that silicon transistors are used and that I CBO can be neglected.
7.
练习4
I、
1. The force acts perpendicular to the surface of the table.
2. The three coefficients here remains to be determined.
3. The two equations below will be often (frequently) used in later chapters/in the
chapters which follow.
4. Here we use two metal balls 10 cm apart.
5. The output remains/stays constant/unchanged/fixed/unaltered/the same.
6. All the textbooks available discuss this problem.
7. Accurate in operation and high in speed, computers have found wide applications.
8. The answer to this problem looks correct.
9. Two parallel wires a distance (of)δapart carry the current i.
10. The problem now is how to measure the voltage across this component.
11. These data will be sent to the computing center 2 kilometers away.
12. Upon rearranging the equation above, we have [get, obtain] the following expression.
13. These charges can interact with other charges present.
14. Forces can be transmitted without contact, contrary to the common belief.
15. This coefficient is typically 0.35.
II、
1. In this case, the input does not fall; nor [neither] does the output. […; the output
does not fall, either.]
2. The resistance of a conductor depends not only on the material of which the
conductor is made, but also on the size and temperature of the conductor.
3. These scientists are very interested in this topic.
4. This parameter can hardly be measured.
5. In this laboratory, this instrument is more expensive than any other one/ any one else.
6. The features of this device are small size and light weight.
练习5
I、
1. This equation can be solved in either of the following two ways/the two ways which follow.
2. This baseball will soon come to rest because of its interaction with the ground.
3. Our choice of this coefficient as 1 is correct.
4. From its definition as the ratio of a force to a length, we can see that k has the same unit as work (does).
5. Our analysis of the machine is of great significance.
6. This facilitates their use in circuit analysis.
II、
1. This police car is equipped with a receiver the size of a matchbox.
2. Wires one hundredth the diameter of a silk thread are used to connect these components.
3. W e must water cool these equipments/devices.
4. In the past, telephone calls were operator connected.
5. AC can be changed/turned/converted/transformed/translated into/to DC, a process called/known as/referred to as rectification.
6. A magnet attracts iron materials, a familiar phenomenon.
7. Computers are capable of processing information, a process that previously could be accomplished only inside our heads.
8. An instrument for measuring current, voltage, and resistance, the multimeter is widely used in electrical engineering.
III、
1. Secs. 1.1 and 1.2 will discuss several other problems.
2. Problems are listed/given on pp. 1-5.
3. In the equations above, all h’s are the hybrid parameters.
4. The mass of the standard pound is equal to 0.4535924277 kilogram s.
5. All a’s and b’s in Eq. (5-1) are related to the impedance R o.
6. W e must take the effect of temperature on [upon] semiconductors into account.
7. In this case, the variation of output with input is very small.
8. This curve shows the dependence of distance on/upon speed.
IV、
1. None of them can solve this special type of differential equation.
2. They do not know whether this material can stand so large a force or not.
3. There are M polygons altogether, each of which has N vertexes.
4. These two engineers are busy (in) designing a new kind of software.
5. Iron is almost as good a conductor as aluminum.
练习6
I、
1. This image, it will be noticed, is a real image.
2. This technical problem, we hope, will be solved soon.
3. 210 is approximately 1000, a fact that we think is very useful in the study of digital electronics.
4. A resistor of say 100 ohms should be used here.
II、
1. None of those textbooks have/has mentioned this point.
2. All of these x values cannot satisfy the equation.
3. Neither of the two conditions is satisfied here.
4. In the preceding/previous chapter, we discussed all kinds of force.
5. This paper describes a new method for designing aircraft.
6. By the end of the last century, the company had manufactured 5 000
radars.
7. Since 2008, this research institute has been developing a special kind of robot.
III、
1. In Section 1-2, the concept of force was introduced.
2. As early as the 1940s, it was found that semiconductors are very useful.
3. This result can also be arrived at in another way.
4. At that time no use was made of this phenomenon/…, this
phenomenon was made no use of.
5. This point will be dealt with in the next section.
IV、
1. This computer works much better than that one (does)/This computer is much better in performance than that one (is)..
2. This computer requires many more components that that one (does).
3. The distance of the moon from the earth is as great as 240 000 miles.
4. The greater the resistance, the longer time it takes for the capacitor to reach its maximum voltage/…, the longer time is required for the capacitor to reach its maximum voltage.)
5. The current as small as 0.1 A cannot produce enough heat.
V、
1. It is easy for us to determine the weight of the body. 或：We can determine the weight of the body easily.
2. The two engineers are busy (in) designing a new type of computer.
3. We find this concept very difficult to explain.
4. None of these windows can withstand so large a force.
5. Work equals [is equal to] force multiplied by/times distance.
6. The results obtained agree with the experimental values. [… are in agreement with the experimental values.]
练习7
I、
1. It will take a few months to design this kind of aircraft with the help of a computer.
2. It is left as a problem to [for] the reader to show that this expression holds.
3. The program to be executed is stored in this unit.
4. This valley acts as the foundation on which to build the dam.
5. In this laboratory there are many kinds of instrument for students to choose from.
6. Let t0 equal/be equal to zero.
7. The farther away the target (is), the longer time it takes for the echo to return.
8. For the series to converge, x must be less than 1.
9. We find this concept very difficult to understand.
10. This method makes it much easier to detect targets.
11. This factor will affect the ability of a computer to store information.
12. We have to find out how large to make r so as for the series to converge.
13. This is a pen to draw pictures with.
14. Elasticity is the tendency of a body to return to its original condition after being deformed.
15. Ordinary matter is said to be electrically neutral.
16.This property makes it possible for metals to be made into any shape.
17. This table is unfit for a student to do experiments on.
18. Now we consider what path of integration to take.
II、
1. The sine law of the variation of light intensity with the cylinder diameter has been emphasized.
2. Not only do temperature and light affect the conductivity, but the addition of impurities to semiconductors also makes it change greatly.
3. V arious satellites are frequently launched to obtain information about/on space.
4. Our semiconductor industry came into being at the end of the 1950s.
5. My colleagues and I would like to express our thanks to Professor W. Smith for his great help.
练习8
I、
1. The amplifier amplifies the received signals.
2. Moving molecules have kinetic energy.
5. Fig. 1 – 3 shows the photo of a freely falling body.
3. Speed equals distance divided by time.
4. V oltage equals/is equal to current multiplied by resistance.
5. The resistance of air increases with the increased/increasing/an increase in speed.
6. A transformer is a device consisting of two or more coils wound on/round an iron core.
7. It is necessary to find out the current flowing through this component.
8. This book, properly used, will be of great help to the reader.
9. Flowing through a circuit, the current will lose part of its energy.
10. Given/Knowing time and speed, we/one can find out distance.
11. Having studied this chapter, the student will understand/will have understood the principle of a computer.
12. The speed of light being extremely great, we cannot measure it by ordinary methods.
13. Several comsats were launched, all of them (being) high-altitude satellites.
14. Called “the mother of all networks,”the Internet is a widely used international network.
15. This force can be resolved into two components, one (being) horizontal and the other vertical.
II、
1.Let us construct/draw a circle with the origin as the center and of radius R.
2.This parameter should be measured with E grounded.
3. With no resistance in the circuit,
the current will increase indefinitely.
4. With this in view, we have written this book.
5. This paper introduces a new design method/technique, with emphasis on its principle. III、
1.Let us consider designing a computer.
2.We refer to these components as being passive.
3.This involves taking the Fourier transform.
4.On/Upon rearranging the above equations, we obtain the following set of
equations.
5.In using this equation, it does not matter which plane is considered as 1.
IV、
1. Given/Knowing resistance and current, one/we can determine/calculate voltage.
2. The price of this instrument is high.
3. A robot is a special kind of electronic device.
4. The current starts flowing at the very moment we close the circuit.
5. They have been designing a new type of computer these six months.
练习9
I、
1. The problem was not solved until a completely different method was introduced.
2. Nearly 100 years passed before the existence/presence of subatomic particles was confirmed by experiment/experimentally.
3. The year this device was invented, World War II broke out.
4. Small as they are, atoms are made up of still smaller particles.
5. These two resistors should be selected/chosen so that the transistor can operate normally.
6. The body is in such a state that it can do work.
II、
1. The relation that voltage is the product of current and resistance applies to all the dc circuits.
2. The discovery that magnetism can produce current is extremely important in the field of electricity.
3. An equation is an algebraic statement that two algebraic expressions are equal.
4. There is evidence that no life exists on the moon.
5. The question now arises whether the algorithm is of practical use.
6. In this case there is no guarantee that the series is convergent.
7. There is a growing/increasing awareness that these techniques/methods are very useful.
8. One of/Among the most noteworthy achievements at that time was the realization that light consists of electromagnetic waves.
9. This is due to/is caused by/results from the fact that there are many free electrons in conductors.
10. Besides/In addition to the fact that the properties of the material should be included in the analytical model, we must take other factors into account.
III、
1.These features make it difficult for electronic counter-measure systems
to intercept, analyze and jam this kind of signal.
2. The existence of and the ability to control these phenomena make those devices
possible.
3. The variation of/in the number of the filter’s teeth has a greater effect on the performance of its passband than the variation of/in its dimensions.
4. Scalar detection will result in the loss of some phase information.
5. Fig. 6 shows the schematic diagram of measuring scatter parameters by the natural parameter transformation method.
练习10
I、
1. Now it remains to be determined when the series converges.
2. It is clear from Dubamel’s Theorem that this limit exists.
3. It follows from Maxwell’s hypothesis that whenever there is a change in an electric field, a magnetic field is produced.
4. It does not matter whether the magnet is moved in this case.
5. Temperature determines in what direction the transfer of heat will take place.
6. It is now a well-known fact that all matter consists of tiny particles.
II、
1. What a generator does is (to) change mechanical energy into electrical energy.
2. What this chapter describes/What is described in this chapter is of great importance.
3. Matter is what can occupy space.
4. What we have discovered in this experiment is the entirely new realm of electrical phenomenon.
5. This direction is opposite to what has been assumed.
6. Magnitude, direction, and place of application are what we call the three elements of a force.
7. These numbers constitute what is known as the real number system.
8. In what follows, we shall acquaint ourselves with some basic concepts.
III、
1. An x-band wave-guide test system is shown in Fig.7. [或：Fig. 7 shows …].
2. This method lowers the requirement for the hardware of a sample network.
3. On the basis of the above analysis of the decomposition of the polynomial, a novel configuration results. [或：The above analysis of the decomposition of the polynomial results in a novel configuration.]
4. Finally, an analysis of packet loss probability is made by computer simulation.
5. The sparse ratio of the resulting impedance matrix is as high as 40%.
练习11
I、
1. The meter (that/which) we use to measure the voltage across a resistor is called a voltmeter.
2. Computers are the most efficient assistants (that) man has ever had.
3. Now this disease is no longer the serious problem (that) it once was.
4. Radar can measure the time (that) it takes for the radio echo to return.
5. We must calculate the distance (that/through which) the body is lifted.
6. The direction (that/in which) a body moves is also very important.
7. The number of times (that/by which) this particle vibrates per/a second is called/termed/named/known as/spoken of as/referred to as frequency.
8. We equate these two ratios, from which the simplest formula follows/results.
9. It is necessary to determine the time when/that/at which the y-component has decreased to zero.
10.. The curve the y-coordinate of each point on which is zero is just the x-axis.
II、
1. The point at which the circle cuts the axis of reals is where α= ω.
2. The force of gravity means the force with which the earth attracts a body.
3. The surface of a picture tube upon which the electrons produce the picture is called the screen.
4. The author would like to express thanks to the editors of the series of which this book is a part/to which this book belongs.
5. This is a parallelogram of which the two given vectors are/form sides.
6. The pressure is equal to the total force divided by the area over which it is exerted.
7. The two elements of which water consists are hydrogen and oxygen.
8. This depends on the efficiency with which electrons are produced.
9. These two laws are the foundation on which all other laws are built.
10. The temperature at which water freezes is generally 0o C.
III、
1. As the title indicates, this chapter will discuss nonlinear equations.
2. As the name shows, a fluid is a substance which flows readily.
3. This single force produces the same effect as is produced by those forces together.
4. Now we are able to solve such differential equations as occur in physics.
5. This function can be accomplished by using the full adder as was described in the previous section.
6. These concepts enable us to understand a wide range of phenomena in electrostatics, or “static electricity,” as it is called.
7. This current is, as predicted, very small,
8. First let us consider the simplest circuit as shown on page 2.
IV、
1. This is a slightly higher value than we predicted.
2. This reactor can produce more fuel than it consumes.
3. Let us consider the case when the torque is zero.
4. We must determine the values of currents and voltages after the switch closes.
5. During the ten years since this book was first published, significant changes have taken place/have been seen in metal-making.
V、
1. Even in this case these protocols can provide a limited number of users with the acceptable quality of voice service.
2. This paper presents a method for an 8098 microcontroller to series-communicate with
a 386 personal computer.
3. The effect of equalizer parameters on equalization performance is analyzed in detail.
[A detailed analysis is made of the effect of equalization parameters on equalization performance.]
4. Each receiver channel in Fig. 1 contains an RF amplifier, a mixer, an IF amplifier, an A/D converter, etc.（注意：句尾的句号与缩略词“etc.”的黑点重合在一起了）
5. The larger the abnormal extent (is), the larger is the residual mismatch, with the curve going up.
练习12
I、
1. be grounded;
2. be carried;
3. be raised;
4. be;
5. not try;
6. be; be satisfied;
7. be;
8. be; was; have; 10. were concentrated; 11. had been; 12. were moving; 13. is going to rain; 14. be; 15. leak
II、
1. Should anything abnormal happen, switch/turn off the power supply at once/immediately.
2. Had electronic computers not been used, it would have taken them a long time to solve this problem.
3. It is very important that all solutions (should) be checked in the original equation.
4. It is suggested that this design (should) be modified at once.
5. Without semiconductors, satellite communications would be impossible.
6. We could also have used Theorem (6) to derive the result.
7. The requirement that energy (should) be conserved must be satisfied.
8. Everything here, be it a component or a device, is home-made.
III、
1. It was this scientist who/that discovered this phenomenon a century ago.
2. Tungsten is the very metal used in electric lamps.
3. The speed with which sound waves move through a medium does depend on the properties of the medium.
4. It is not clear yet under what conditions it is that this formula can be used.
5. This property we call inertia.
IV、
1. The author is engaged in the teaching of and the research on computer vision, and image processing and recognition.
2. Let P and Q be two Boolean permutations of the same order, and then their composition is a new Boolean permutation.
3. Three algorithms are presented, which can remarkably reduce the time to raise the pen, thus raising the drawing efficiency.
4. What this paper describes is of great interest to communications engineers.
5. The minimum entropy technique for estimating the Doppler frequency rate is presented, which has the advantages over the classical techniques of high accuracy and a small amount of computation.
练习13
II、
1. By electromagnetic force is meant the potential difference across the battery when there is no flow of current.
2. In the table below/which follows are listed various parameters of familiar computers.
3. An element cannot be decomposed, nor can it be broken up by chemical methods.
4. Only when x = 8, does this equation hold/apply.
5. Of particular importance/Especially important are the two concepts which follow.
6. Such a set we call the mathematical system.
7. Rarely does one know this function with precision.
8. This interrelationship between electric and magnetic fields makes possible such things as the electromagnet and the electric motor.
9. Not until 1818 was the diffraction of light interpreted/explained.
10. By no means do electrons move from the positive terminal to the negative terminal in
a wire.
II、
1. The effect of air resistance is discussed in Chapter 15, and the decrease in acceleration with altitude in Chapter 17.
2. It is necessary to determine the charge on and the voltage across this capacitor.
3. In this case, no standard is needed, but only a numerical convention.
4. This voltage is greater than or equal to 0.4 volt.
5. The cathode, when heated, emits electrons.
6. Every body, whether accelerated or not, is considered (to be) in equilibrium.
7. If necessary, the wire will be covered with some insulation.
8. The transistor has its materials arranged p-n-p, hence the name pnp transistor.
III、
1. An initial analysis is made of the performance of the device.
2. The magnetic field is the space around a magnet occupied by the magnetic lines of force.
3. This leads to the battery voltage in the model of 500 mV.
4. This graph shows the variation with frequency of the resistance of the resistor.
5. This is responsible for the direct return to the atmosphere of more than half the water that falls on the land.
6. The question now arises how these unknowns can be determined.
7. It is necessary to determine the effect on the device of changing the ambient temperature.
8. The assumption has been made that the pressure always remains constant during the test.
IV、
1. The simulation results show that both the schemes are easy to implement.
2. The model and algorithm proposed in this paper are to a certain degree/extent superior in performance to the conventional BP algorithm.
3. A new technique for estimating the frequency deviation is proposed which gives a high accuracy and requires a small amount of computation.
4. Improvement of the accuracy of range alignment in ISAR imaging (by) using the super resolution technique
5. Research on and the realization of DTMF in a Cipher Coder
6. Analysis of the ability of a quartz flexibility accelerometer to resist bad environment
科技英语写作高级教程参考答案 科技英语写作高级教程参考答案V、练习参考答案 练习1 I、 1、the(各项均为负。) 2、the; a (功率额定值是电阻器不会引起温度太大的上升而能安全地耗散的最大功率。) 3、an(这是均方根值伏特计。) 4、The; a(该设备的成功设计需要详细地了解性能指标。) 5、the; a; a(在氢原子的布尔模型中，一个电子绕一个质子以半径为R的圆周运转。) 6、the(电阻的单位是欧姆。) 7、an (这是一个h参数。) 8、/; /(图5,1画出了Oersted的实验。) 9、A; a; a(机器是能够传递力来完成某一确定目的的一种设备。) 10、/(水压机将在第14章加以考虑。) 11、the; the [/](我们容易确定参数μ的值。) 12、/; the(根据式(2,1)，我们得到以下的关系式。) 13、the; /(作者工作在位于阿林顿的得克萨斯大学。) 14、an(甚至当积分区间并不是无穷时，能够恰当地显示一个时函数的傅氏变换的仪器是多么重要啊～) II、 1. Dr. Emmet graduated from Harvard University in 2001. 2. Professor Li earned his Ph.D. degree in mechanical engineering from the Xi’an University of Technology in 1988. 3. Now we shall turn to the discussion of local area networks. 4. The Bainbridge mass spectrometer is as important an
练习1 I、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。
英文科技论文写作_北京理工大学中国大学mooc课后章节答案期末考试题库2023年 1.If a real physical system shows a variation of both material properties across the graded layer, the assumed linear variation may not give the best approximation. 答案: may 2.The idea of 'community' in terms of GRT lives is very strong and could be seen to correspond to some of the nostalgic constructs that non-GRT groups place on 'community'. 答案: could be seen 3.Is the research topic “How safe is nuclear power” effective? 答案: 正确 4.Decide whether the following statement is true or false.c.Introduction includes more detailed information than abstract. 答案: 正确 5.Tertiary education may be ________ asthe period of study which is spent at university. 答案: defined
科技英语写作_西安电子科技大学中国大学mooc课后章节答案期末考试题库2023年 1._____ elements in _____ Group 1 are called alkali metals. 答案: The; / 2.Accuracy is expressed as absolute error _____ relative error. 答案: or 3.The current through the power supply is _____. 答案: a few thousandths of an ampere 4.Based on the ___________ for random numbers, this paper offers a suggestion for selecting random generators in simulation. 答案: theoretical and empirical test
5.“这个电热器消耗的电能比那个电热器多三倍。”一句的英文表述，哪一项正 确？ 答案: This electric heater dissipates four times more energy than that one. 6.“本书包含几个应用方面的内容，其中一些是新的。”一句的英文表述，哪一 项正确？ 答案: This book includes several applied topics, some of them being new. 7.“大气层宽广有力，它是由几百英里厚的各种气体的海洋构成的。” 一句的英 文表述，哪一项正确？ 答案: Large and powerful, the atmosphere consists of an ocean of gases hundreds of miles high. 8.关于“变电站馈出电流减小，其中电流峰值降幅平均可达40%。”一句的两种 英文表述：
科技英语写作第三版课后答案1、23．Hurry up! The train ________ in two minutes. [单选题] * A．will go(正确答案) B．go C．goes D．went 2、We must try hard to make up for the lost time. [单选题] * A. 弥补(正确答案) B. 利用 C. 抓紧 D. 浪费 3、All he _______ was a coat. [单选题] * A. had on(正确答案) B. had to C. had a rest D. had a good time
4、The hall in our school is _____ to hold 500 people. [单选题] * A. big enough(正确答案) B. enough big C. very small D. very big 5、The bookshop is far away. You’d better _______. [单选题] * A. by the bus B. by bus C. take bus D. take?the bus(正确答案) 6、If you get _______, you can have some bread on the table. [单选题] * A. happy B. hungry(正确答案) C. worried D. sad 7、When we take a trip,we usually have to _______ a hotel. [单选题] * A. take
学术英语写作课后答案 第一篇 1、Academic Writing----A Handbook for International Students (Fourth Edition) and Writing Research Papers (Fifteenth Edition)中提到，我们可以用两种形式来罗列大纲，它们是： A、The outline might be informal B、The outline might be a list C、The outline might be a mind map D、The outline might follow up 答案：B 2、Academic Writing----A Handbook for International Students (Fourth Edition) and Writing Research Papers (Fifteenth Edition)中提到，大纲有两种类型，分别是： A、Informal outline B、List outline C、Running outline D、Formal outline 答案：C;D 3、在formal outline 中，显示等级的常规做法是： A、Symbols B、Indentation C、Paralleli D、Consistency E、Content-rich headings 答案：B；A；C；D 4、正式大纲的三种形式是： A、Sentence outline B、Topic outline C、Combination outline D、Phrase outline 答案：A;B;C 5、我们有可能对working outline进行以下哪些修改？
科技英语写作参考答案 科技英语写作参考答案 科技英语写作是在科技领域进行交流和表达的重要方式。对于科技从业人员来说，掌握科技英语写作技巧是非常重要的。本文将从科技英语写作的基本要素、常用句型和注意事项等方面进行阐述，希望能够给科技从业人员提供一些参考 答案。 一、科技英语写作的基本要素 科技英语写作的基本要素包括准确性、简洁性、清晰性和逻辑性。首先，准确 性是科技英语写作的基本要求。科技领域的文章往往涉及到专业术语和概念， 因此在写作过程中要确保所使用的术语和概念的准确性。其次，简洁性是科技 英语写作的重要原则。科技文章通常需要表达复杂的概念和理论，因此要尽量 避免冗长和啰嗦的表达方式，采用简洁明了的句子结构和措辞。再次，清晰性 是科技英语写作的关键要素。科技文章需要清晰地传达作者的观点和研究结果，避免模糊和含糊不清的表达。最后，逻辑性是科技英语写作的基本要求。科技 文章需要有清晰的逻辑结构，合理地组织内容，使读者能够理解和跟随作者的 思路。 二、常用句型和表达方式 在科技英语写作中，有一些常用的句型和表达方式可以帮助作者更好地表达自 己的观点和研究结果。例如，在介绍研究目的时可以使用句型“本研究旨在探索 /研究/分析……”，在描述实验方法时可以使用句型“我们采用了……的方法/技术”，在解释实验结果时可以使用句型“实验结果表明……”，在总结研究结论时可以使 用句型“综上所述，我们得出了以下结论……”。此外，还可以使用一些常用的科
技英语词汇和短语，如“data analysis”（数据分析）、“experimental design”（实 验设计）、“statistical significance”（统计显著性）等，以增强文章的专业性和权 威性。 三、注意事项 在科技英语写作中，还需要注意一些细节和技巧。首先，要注意语法和拼写的 准确性。科技文章对语言的准确性要求较高，因此要仔细检查文章中的语法错 误和拼写错误，确保文章的准确性。其次，要注意段落的结构和连接词的使用。科技文章通常由多个段落组成，每个段落应该有明确的主题和中心思想，并且 要使用适当的连接词来连接各个段落和句子，使文章的结构更加清晰和连贯。 最后，要注意文章的篇幅和格式。科技文章通常需要按照一定的格式进行编写，如引言、方法、结果和讨论等部分，同时要注意文章的篇幅，不要过长或过短。总结起来，科技英语写作是科技从业人员必备的重要技能之一。通过掌握科技 英语写作的基本要素、常用句型和注意事项等方面的知识，科技从业人员可以 提高自己的科技英语写作能力，更好地进行科技交流和表达。希望本文的参考 答案能够对科技从业人员在科技英语写作方面有所帮助。
科技英语课后答案 第一章科技英语阅读 第一节科技英语主要特点 I. 1.The first three sentences in Passage One are all constructed with passive voice while the first three sentences in Passage Two are constructed with active voice. Therefore, the language in Passage One sounds more formal and objective than that of Passage Two. 2.The words spoken by Sheila in Passage Two are informal. Examples: "There's Ravi at the home of that American doctor." (Contracted form); "A wonderful guy." (Incomplete sentence); "Ravi looks sweet, doesn 't he?" (Question tag). 3.In the second paragraph of Passage One, "it" refers to "to use insecticide regularly, on a very large scale." 4.In the second paragraph of Passage Two, "through" means "finish" or "complete." 5.Passage One is written for academic purpose and Passage Two mainly for entertainment. II. Passage One A blast of hot air is sent into the bottom of the furnace to make the coke burn fiercely. It is blown into the furnace through pipes. These pipes are installed around the circumference of the blast furnace eight feet above the bottom.
what is science 科技英语写作答案 First, then, what is science? Surely there can be no difficulty in answering this, and yet I fear that, if I should pass through this or any other audience with the question, I should get many different answers. A certain lady, whom I know better than any other, has told me that, should she ever be permitted to marry a second time, she would not marry a scientific man, because scientific men are so terribly accurate. I often hear the same general idea expressed, and it is clear that accuracy is one attribute of science according to prevailing opinions. But accuracy alone is not science. When we hear a game of baseball or of whist spoken of as thoroughly scientific, I suppose the idea here, too, is that the games are played accurately; that is, to use the technical expression, without errors. Again, there are those who seem to think that science is something that has been devised by the Evil One for the purpose of undermining religion. The idea is not so common as it was a few years ago, when the professors of scientific subjects in our colleges were generally objects of suspicion. The change which has come over the world in this respect within my own
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）。 https://www.doczj.com/doc/f619233061.html,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 one unknown. 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 one fifth its present output]. 十年前该厂的产量（output）仅为现在的五分之一。 8.The difference between these two values is 13 parts in 104. 这两个数值之差（difference）为万分之十三。 9.Tin does not have as high a melting point as lead (does). 锡（tin）的熔点（melting point）没有铅（lead）高。（要求使用“have as…as”句型） 10.This average velocity is half the final velocity. 这个平均速度（average velocity）是末速度（final velocity）的一半。 11.It is necessary to find how long a time it takes [或：is required; is needed; is necessary] to solve this equation. 必须弄清（find）解（solve）这个方程（equation）需要多长的时间。 12.This wire is four times thicker than that one. 这根导线（wire）比那根粗（thick）三倍。 13.Electricity can be easily changed into other forms of energy.
• 1. When writing proposals, we should concentrate on the reviewers’ preferences.（1分） B 正确错误 •多选2. Which are included in the biographical sketches?（1分）ABC Key investigators in the https://www.doczj.com/doc/f619233061.html,cational background.Academic duties.Current status (literature reviews). •多选3. Which are included in the progress report?（1分）ABCD Background information: A description of current status: results, methodologies,Conclusions.Achievements so far. •多选4. Which are included in the contents of a proposal?（1分）ABCD Project descriptions.References cited.Biographical sketches .Budget. •单选5. Which are concluded in current achievements related to the proposed project?（1分） D Related projects completed.Related publications Related duties All the above. • 6. Which is not included in introduction?（1分） C Motivations..Basis for proposing the project Approach.Current status (literature reviews). •单选7. What are the strategies when we write proposals?（1分） D We need to present the key ideas clearly and convincingly in first several pages.We have to be creative and try very hard to set up new problems and propose new approaches unlikely to be thought about by others.For different kinds of proposals, we should use different strategies.All the above. •单选8. Which assumptions should not we accept when writing proposals?（1分）B The reviewers are statistically unbiased and intelligent.The reviewers know the background of the proposal very well.The reviewers are smart but very busy.There are many smart researchers out there competing on the same subject and proposing similar or better ideas •多选9. Which disciplines are included in “Micro sensor and wireless sensor networks”?（1分）ABCD Information engineering.Mechanical engineering.Physics & chemistry.Biology. •多选10. Why is the interdisciplinary research important?（1分）ABCD
秦荻辉科技英语写作练习答案 I、 1、an （人们对这课题的兴趣越来越浓。) 2、a （功率额定值是电阻器不会引起温度太大的上升而能安全地耗散的最大功率。） 3、an（其主要的缺点是增加了噪声。） 4、The; a（该设备的成功设计需要详细地了解性能指标。） 5、the; a; a（在氢原子的布尔模型中，一个电子绕一个质子以半径为R的圆周运转。） 6、the（频率的单位是赫兹。） 7、a; a; an; the（如果在电路的两端加上电压的话，就会有电流在电路中流动。） 8、/; /（图5－1画出了Oersted的实验。） 9、an（这里我们应该使用一个18伏的电池。） 10、A; a; a（机器是能够传递力来完成某一确定目的的一种设备。） 11、The; /（水压机将在第14章加以考虑。） 12、The; the; the（研究处于运动中的流体，是力学中较为困难的分支之一，因为可能出现的现象是多种多样的。） 13、the; the [/]（我们容易确定参数μ的值。） 14、/; the（根据式（2－1），我们得到以下的关系式。） 15、an（在这里必须使用一根S形管子。） 16、the; /（作者工作在位于阿林顿的得克萨斯大学。） 17、an（这是一只R位的变换器。） 18、An（这里必须使用一个“异”或门电路。XOR = Exclusive OR） II、 1. This is an h parameter. 2. We turn now to a discussion of local area networks.
3. The Bainbridge mass spectrometer is as important an instrument as the optical spectrometer. 4. It is necessary to find out how long a time is required for an electron to travel the [this] length of the wire. 5. The density of a substance is its mass per unit volume. 6. T he radius of the earth is 6.37×106 m. 7. The [These] two parameters are the same. 8. An increase in pressure always causes a decrease in volume. 9. Fig. (2-5) shows what is expressed by Eq. (2-2). 10. The unit of inductance is the henry. 11. Too large an input signal can cause nonlinear distortion. 12. Using the definition of slope, we can derive the equation which represents a straight line. 13. The expression f (x＋h)－f (x) is frequently used in the study of calculus. 14. An equation which can be written in the following form is known as a linear equation in one unknown. 15. In a computer, the tendency is to operate at as high a clock rate as possible. 16. Tin does not have as high a melting point as lead (does). 17. This average velocity is half the final velocity. 18. Electricity can be easily changed into other forms of energy. 19. In 1831, Joseph Henry in the United States discovered the phenomenon of electromagnetic induction. 20. A computer consists of several parts [units]. III、 Chemistry is based upon concepts that require the measurement of such quantities as length, volume, mass, and temperature. These measurements are quantitative; that is, they
英语秦荻辉科技英语写作习题以及答案 练习1 I、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 _____
英语-秦荻辉-科技英语写作习题以及答案 LT
练习1 I、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
科技英语写作王燕萍答案慕课1、43．How much did you ________ the man for the TV? [单选题] * A．pay(正确答案) B．take C．spend D．buy 2、Have you kept in（）with any of your friends from college? [单选题] * A. contract B. contact(正确答案) C. continent D. touching 3、By the end of this month, all this _____. [单选题] * A. is changed B．will change C. will have changed(正确答案) D. has changed
4、People cut down many trees ______ elephants are losing their homes. （）[单选题] * A. if B. but C. so(正确答案) D. or 5、John and Jack had looked for the key, but _____ of them found it. [单选题] * A. none B. neither(正确答案) C. both D. either 6、Finally he had to break his promise. [单选题] * A. 计划 B. 花瓶 C. 习惯 D. 诺言(正确答案) 7、She talks too much; you’ll be glad when you’re free of her. [单选题] * A. 与她自由交谈