科技英语unite7答案
科技英语综合教程教参及标准答案
科技英语综合教程教参及标准答案————————————————————————————————作者：————————————————————————————————日期：2Unit 1 Computer and NetworkText ATalking with Your ComputerSentence structure analysis1.The first generation of speech-based interfaces is beginning to emerge, includinghigh-performance systems that can recognize tens of thousands of words. (Para. 2)第一代以语言为基础的接口装置很快就要面世, 包括能认识数万字的高性能系统。
本句中the first generation of speech-based interfaces作主语，is beginning to emerge作谓语，in cluding…thousands of words作定语修饰interfaces，其中又含有一个定语从句that can recognize tens of thousands of words。
2.I believe the next generation of speech-based interfaces will enable people tocommunicate with computers in much the same way that they communicate with other people. (Para. 3) 我相信第二代以语言为基础的接口装置将能使人机交流达到像人与人交流一样。
这是一个主从复合句。
I作主语，believe作谓语，引导一个省略了that的宾语从句，宾语从句中又包含in much the same way引导的一个方式状语从句。
人教版八年级英语上册unit7 完形填空、阅读理解练习(含答案)
人教版八年级英语上册unit 7完形填空、阅读理解练习I.完形填空AI am a boy in South Korea. My English name is Tony. Recently(最近)， a1._________ named Engkey became my new teacher.Engkey teaches us 2. ___________It looks like a human.lt can 3.________ around our classroom when it reads books and 4._________ with us. However, Engkey's voice is not its own. An English teacher controls (控制)it.5.___________ the help of a special camera(摄像头) in the body of Engkey, the English teacher can 6. ___________us and help us learn better.My robot teacher doesn't need to have a rest 7. _________it never feels tired or gets ill like humans. Also it 8.____________ gets angry with us. I like talking with it, because I think it is very interesting. Everyone in my class likes Engkey. Now it is very 9.________ ___ in my class.Most students in my class are more interested in English and spend more time on 10. __________after Engkey became our English teacher. Now most of them get better grades.I believe there will be more robot teachers in my school.( )1. A. woman B. man C. robot D. computer( )2. A. math B. English C. art D. music( )3. A. send B. practice C. share D. move( )4. A. disagrees B. talks C. fights D. catches( )5. A. With B. Under C. From D. For( )6. A. invite B. hear C. see D. believe ( )7. A. because B. or C. though D. so( )8. A. already B. even C. just D. never( )9. A. popular B. possible C. educational D. dangerous( )10.A.him B. it C. her D. themBI think our life will be very different in 100 years.First,people won't 1__________ on the earth, Our 2__________will be under the sea. Special machines will provide air and light, but the 3__________ won't be the same, Trees and plants won't grow 4__________ there won't be any soil. For this reason, people won't be able to 5__________vegetables. Most of food will be in the form of a pill. If there is no pollution in the sea, people will also eat 6__________.Second, I think people's everyday life will be different. They won't have to work long hours, because computers and robots will help them. 7__________ will have to do housework. So people will have 8__________ free time and they will be able to enjoy the things they like-sports, for example.9_______,I believe that everyone will be able to travel to the moon for a holiday.In a word, I think that life in the future won't be the same 10________ it is today.I believe the future world will be an interesting place to live in( )1.A.live B. work C. study D. play( )2. A. school B. cities C. rooms D.families( )3. A. environment B . development C. land D. sea( )4. A. instead B. because C. if D. although( )5. A. buy B. sell C.grow D.take( )6. A. fish B. rice C. beef D. plants( )7.A.None B. Neither C. No one D. All( )8. A. more B. fewer C. less D. large( )9. A. Then B. So C. Finally D. Especially( )10. A. like B. as C. than D. forC任务型完形填空In ten years, I think I'll be a teacher, because I like 1.___________with children. I'll meet 2.____________ interesting students, and I'll also be able to make 3.____________ with foreign teachers. I think I'll live in Beijing in ten years. But as a 4.__________, I hope that I can tour all places of interest in 5. ____________ country. I 6. ___________ a pet dog at home in ten years, because I don't have 7. ___________time now. And I am sure I'll also have many good friends 8.___________ten years.9.__________I'll learn judo (柔道)，because that is one of my dreams. I want to be healthy, so I'll exercise more, and I'll eat 10.____________ food every day. I will work hard from now on!II.阅读理解AWhat will the schoolbag be like in the future?Do you go on carrying your bag to school now? I think nobody wants one shoulder to be lower tan the other. In India, most of us would look on the reduction of text books as a way out. But in a country like America, there are always more options(选择).A company called Go Reader has created a"schoolbag"which is the size of a laptop computer,weighing about 2. 5 kg.The "schoolbag" has a color screen and can "hold"all the text books that a student may need, says a report in The Asian Age newspaper.The company plans to work closely with the publishers(出版商) of textbooks so that these books can be supplied on the Internet.What all the students will have to do is to download their textbooks.Making notes and highlighting(用彩笔做标记)important parts of a lesson can be done just as generations of students have done on their textbook. ( )1. The new“ school bag” looks like___________.A. a TV setB. a big computerC. a laptop computerD. a box( ) 2. Whats the meaning of the underlined word in Paragraph 2?A.卸载B.下载C.向下D.下降( ) 3. How many books can the"schoolbag hold?A. Some main booksB. Many new booksC. All the textbooks that a student may needD. All the notebooks that a student may need( )4. Which of the following is WRONG?A. Many people don＇t like bulky(笨重的)bags.B. American students may have more options.C. The new"schoolbag weighs about 2.5 kg.D. The "schoolbag" has a black screen.( ) 5. What will the students have to do when they use the new bags?A. The students should use them at homeB. All the students may use them without making notesC. The students will not download their textbooksD. They have to download their textbooksBDear Sarah in 2020,This is a letter from the year 2050. I want to talk about life in 2050.Life seems to go easy in 2050. Robots do most things for people, such as working, cook-ing and cleaning.Toys teach and play with children.Parents spend most of their time dream-ing.However, that’s not everything. The weather change very fast. Sometimes, when you go outside on the street, it is raining hard, and then it stops the next minute. People easily get different diseases(疾病)in 2050. We can't breathe(呼吸) fresh air on the street because of air pollution. Forests die because the water gets polluted. Animals die because they lose their home, food and water. Everyone has to pay to see real plants and animals in museums.How does the world become like this? Well, technologies(科技) have developed too fast in the past 50 years. Some are bad for the earth and people.This is really a good lesson for people in your time. What are we going to do with the money and technologies if we don't have our home? Please slow down and take time to think about technologies.Yours truly,Sarah in 2050( ) 1. We can learn from the letter that in 2050__________.A. people will work for robotsB. robots will cook for peopleC. parents will teach children themselvesD. children will always dream( ) 2. What may people do in 2050? A. Breathe fresh air everywhere B. Spend money seeing real animals.C. Use plants to improve the environmentD. Enjoy a beautiful world.( ) 3. What does Paragraph 3 mainly talk about?A. Bad things in 2050B. Air pollution in 2050C. Weather in 2050D. Animals in 2050( ) 4. What is the letter mainly aboutA. What life in 2050 will be like.B. Why there will be water pollution in 2050.C. How technologies make a difference to life.D. What people will do in 2050.CRobots seem very new to some people. But in fact they have a long history. The f irst one was made by a Greek inventor(发明家).You may often see robots in lots of movies. The robots in the movies are stronger, faster and cleverer than people. In real life, most robots are used in factories. They are used to do many dangerous, difficult or boring jobs.Some people can't look after themselves and robots are used to help them.For exampl e, some people can't see. They use dogs to help themselves move around. These dogs are called guide dogs.Scientists are making robots to help them.In the future, robot dogs might take the place of these guide dogs.Robots are also used in American hospitals. At hospital, a robot takes meals from the k itchen to sick peoples rooms. It never loses its way because It has a map of the hospital in i ts computer system.In the future. robots will work in space. But robots never take the place of humans though they can help us in a lot of different ways.( )1. People can often see stronger, faster and cleverer robots __________.A. in spaceB. in all hospitalsC. on the streetD. in the movies( ) 2. In real life, most robots work __________.A. in factoriesB. for the sick peopleC. in people's homesD. for scientists ( ) 3. The underlined phrase"take the place of"means __________.A.占位B.获胜C.代替D.发生( ) 4. Robots can't get lost in hospitals because __________.A. they walk after the doctorsB. they can ask people the wayC. they have a map in their handsD. their computer systems help them( ) 5.From the passage we know that __________.A. robots are still very new to some peopleB. the first robot was invented by an American many years agoC. most robots work as guides for peopleD. robots can work in space nowD阅读文章,根据其内容判断其后各个小题正误。
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科技英语写作高级教程参考答案V、练习参考答案练习1I、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 engineeringfrom the Xi’anUniversity of Technology in 1988.3. Now we shall turn to the discussion of local area networks.4. The Bainbridge mass spectrometer is as important aninstrument as the opticalspectrometer.5. How long a time [或How much time] is required to this experiment? The densityof 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 UASMA protocol employs a unique frame structure.2. Finally, a broad stepped impedance transformer is designed bythis method.3. Dynamic analysis and evaluation of the security of a proactive secret sharingsystem4. The approach can be applied to the one-dimensional potentialbarrier with anarbitrary profile.5. We propose a numerical method based on Newton’s iterative method.练习2I、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 States and Great Britain, France and Italy.4. We assume that the antenna is vertical and that its loss iszero.5. Chapters 6, 7, and 8 deal with transmission lines.II、121. Its error is six parts in 10.2. 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 CBOcan 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3I、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.o4. At this point/time, current differs in phase from voltage by 90.5. By analyzing [By the analysis of] the parameters of the instrument, we canunderstand 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] theequation, 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 targets.2. The influence of the moving state of the target on the tracking accuracy of the EKF is great.th3. Another comsat was launched on the morning of the 8 of October.4. Voltage is measured in volts.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 can be neglected. CBO7.练习4I、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 thechapters 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 wi res a distance (o f)δapart carry the currenti.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 theconductor 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 oneelse.6. The features of this device are small size and light weight.练习5I、1. This equation can be solved in either of the following two ways/the two wayswhich 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 thesame 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 thesecomponents.3. We 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 previouslycould be accomplished only inside our heads.8. An instrument for measuring current, voltage, and resistance, the multimeter iswidely 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 a re the hybrid parame ters.4. The mass of the standard pound is equal to 0.4535924277 kilograms.5. All a’s and b’s in Eq. (5-1) are related to the impedance R. o6. We must take the effect of temperature on [upon] semiconductorsintoaccount.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 largea 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 ofsoftware.5. Iron is almost as good a conductor as aluminum.练习6I、1. This image, it will be noticed, is a real image.2. This technical problem, we hope, will be solved soon.103. 2 is approximately 1000, a fact that we think is very useful in the study of digitalelectronics.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/…, thisphenomenon 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 betterin 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 itsmaximum voltage/…, the longer time is required for the capacitor to reach its maximumvoltage.)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 theweight 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. [… arein agreement withthe experimental values.]练习7I、1. It will take a few months to design this kind of aircraft withthe 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 forstudents to choose from.6. Let t equal/be equal to zero. 07. The farther away the target (is), the longer time it takes forthe 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 beingdeformed.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 beenemphasized.2. Not only do temperature and light affect the conductivity, but the addition ofimpurities to semiconductors also makes it change greatly.3. Various 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 hisgreat help.练习8I、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. Voltage 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 theprinciple 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 internationalnetwork.15. This force can be resolved into two components, one (being) horizontal and the othervertical.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 ofequations.5. In using this equation, it does not matter which plane is considered as 1.IV、1. Given/Knowing resistance and current, one/we candetermine/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 thecircuit.5. They have been designing a new type of computer these six months.练习9I、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 andresistance 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 thesetechniques/methods are veryuseful.8. One of/Among the most noteworthy achievements at that time wasthe realization thatlight consists of electromagnetic waves.9. This is due to/is caused by/results from the fact that there are many free electrons inconductors.10. Besides/In addition to the fact that the properties of thematerial should be included inthe analytical model, we must take other factors into account.III、1. These features make it difficult for electronic counter-measure systemsto intercept, analyze and jam this kind of signal.2. The existence of and the ability to control these phenomena make those devicespossible.3. The variation of/in the number of the filter’s teeth has a greater effect on the performance of its passband than the variationof/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10I、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 hypo thesis that whenever there is a change in an electricfield, 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 electricalphenomenon.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 aforce.7. These numbers constitute what is known as the real number system.8. In what follows, we shall acquaint ourselves with somebasic 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 novelconfiguration results. [或:The above analysis of the decompositionof the polynomial resultsin a novel configuration.]4. Finally, an analysis of packet loss probability is made bycomputer simulation.5. The sparse ratio of the resulting impedance matrix is as high as 40%.练习11I、1. The meter (that/which) we use to measure the voltage across a resistor is called avoltmeter.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 iscalled/termed/named/known as/spoken of as/referred to as frequency.。
科技英语阅读李健答案
科技英语阅读李健答案【篇一：科技英语阅读(李健版)翻译u3】物的适应性植物为了生存也必须像人类和动物一样适应周边的环境。
生存就意味着竞争，我们很难想象植物之间的竞争，但它往往又存在的。
首先，不同的植物之间会争夺阳光、空气、土壤和水。
其次，植物也会与那些吃它或者威胁到它生存环境的人类和动物竞争。
再次，植物所处的环境也可能也是有敌对性的或者不利于植物生长的。
怎样才能有足够的阳光、水分、空气和土壤？气温的冷热就是植物生长的主要因素吗？光对于植物来说是最基本的，尤其是对于绿色植物来说。
绿色植物在光下能制造养分——这是一种被称为光合作用的过程，而光也能影响水分蒸发的速率和花的形成。
温度也是必须考虑的因素。
对于大多数植物来说，所处的温度低于一度或者高于四十三度都将对其造成严重的损伤甚至死亡。
而温度也直接影响了种子的萌芽以及开花，当然温度也决定了它们的地理分布。
没有水植物也是无法生存的。
有些植物的生长过程需要大量的水分，因此潮湿的空气、大量的降水以及溪流湖泊和湿润的土壤对于植物都是重要的。
大多数植物需要有足够空气。
大气中所包含的一些必要的气体包括：氧气、二氧化碳、水蒸气和氮气。
空气移动所产生的风对于植物也有很大影响。
风有助于传播花粉、孢子和种子从而将它们播种在各种地方，但强风也有可能折断或者损害植物，尤其是大树。
而大风吹走了一些有养分的土壤，也会加快水分的蒸发甚至使植物缺水。
土壤对于陆生植物来说是必不可少的。
大部分植物生长在自然土壤里：其中包含着它的湿度、酸度、矿物成分、含氧量。
植物生长也会受到其他竞争生物的影响。
它必须能适应寄生菌、饥饿的鸟类、牛羊等食用叶子的动物，但植物也需要动物帮助传播花粉以及播洒种子。
有树叶和枝干的树以及灌木向我们展示了它们的适应性，这也告诉了我们植物是怎样获得最大量的光和空气的。
和那些山毛榉树、榆树、橡树、苹果树和栗子树一样，它们有一些芽最初是垂直生长的然而另一些却变成了水平生长。
为了能得到最多的阳光，一些垂直生长的枝芽会螺旋缠绕生长以至于不会遮挡到自己下边的叶子。
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。
科技英语写作高级教程参考答案完整(可编辑修改word版)
the The an An The the the 练习 1II 冠词1. Dr. Emmet graduated from Harvard University in 2001.（Emmet 博士 2001 年毕业于哈弗大学）2. Professor Li earned his Ph.D. degree in mechanical engineering from Xi’anUniversity of Technology in 1988.（李教授 1998 年在西安理工大学获得机械工程博士学位）3. Now we shall turn to the discussion of local area networks.（现在我们转向（turnto ）讨论一下局域网）4. Bainbridge mass spectrometer is as important spectrometer.（质谱仪是与光谱仪一样重要的仪器）instrument as optical5. How long a time [或 How much time] is required to this experiment?（做这个实验需要多长时间？）6.increase in pressure always causes a decrease in volume.（压力的增加总会引起体积的减少）7. Fig. (2-5) shows what is expressed by Eq. (2-2).（图（2-5）画出了式（2-2）所表示的情况）8.III 、改错unit of inductance is henry.（电感的单位是亨利） 1.UASMA protocol employs a unique frame structure.（UASMA 协议采用了独特的帧结构）2. Finally, a broad stepped impedance transformer is designed by this method.（ 最后，用这种方法设计了宽带阶梯阻抗变换器）3. Dynamic analysis and evaluation of security of a proactive secret sharingsystem （先应秘密共享系统安全性的动态分析和评估）4. The approach can be applied to one-dimensional potential barrier with arbitrary profile.（该方法适用于任意形状的一维势垒）5. We propose based on iterative method.（我们提出了一种基于牛顿地带发的数值方法）练习 21. This circuit consists of a battery, an inductor and a capacitor.（该电路是由一个电池、一个电感器和一个电容器组成）2. Compute the electric fields at points a, b, and c.（试计算在 a 、b 、c 三点处的电场。
科技英语试题及答案
科技英语试题及答案一、选择题（每题2分，共20分）1. The term "nanotechnology" refers to the manipulation of matter on an atomic, molecular, and supramolecular scale.A. TrueB. False2. Which of the following is NOT a characteristic of renewable energy sources?A. Infinite in supplyB. Environmentally friendlyC. Dependent on weather conditionsD. Non-renewable3. The process of converting solar energy into electrical energy is known as:A. SolarizationB. Photovoltaic effectC. Solar distillationD. Thermal radiation4. In the context of computer science, what does "AI" stand for?A. Artificial IntelligenceB. Advanced InterfaceC. Automated InputD. Application Interface5. The term "genome" is associated with:A. The complete set of genes in an organismB. The structure of a cellC. The study of geneticsD. The process of cell division6. What is the primary function of a transistor in an electronic circuit?A. To amplify signalsB. To store dataC. To convert light into electricityD. To filter signals7. The "Internet of Things" (IoT) refers to:A. A network of interconnected devicesB. The global network of computersC. A collection of internet protocolsD. The study of internet security8. Which of the following is a type of biotechnology?A. Genetic engineeringB. Quantum computingC. NanolithographyD. Nuclear fusion9. The "Greenhouse Effect" is related to:A. The warming of the Earth's surfaceB. The cooling of the Earth's surfaceC. The process of photosynthesisD. The formation of the ozone layer10. What does "CRISPR" stand for in the field of molecular biology?A. Clustered Regularly Interspaced Short Palindromic RepeatsB. Computer-Aided Research in Scientific ProjectsC. Comprehensive Research in Innovative ScienceD. Computational Research in Systematic Processes二、填空题（每题1分，共10分）1. The unit of electrical resistance is the ______.2. The process of converting sound waves into electrical signals is known as ______.3. In physics, the term "entropy" is used to describe the level of ______ in a system.4. The study of the chemical composition of planets is known as ______.5. The term "cybersecurity" refers to the protection of______ from cyber threats.6. The process of converting electrical energy into light is known as ______.7. The smallest unit of life that can replicate itself is called a ______.8. The process of creating new substances from existing ones is known as ______.9. The study of the structure and function of cells is known as ______.10. The process of converting light energy into chemical energy is known as ______.三、简答题（每题5分，共30分）1. Explain the concept of "machine learning" in artificialintelligence.2. Describe the role of a semiconductor in modern electronics.3. What is the significance of biodiversity in the context of environmental science?4. Discuss the potential impact of nanotechnology on medicine.四、论述题（共40分）1. Discuss the ethical considerations involved in the development and use of genetic engineering technologies. (20分)2. Analyze the potential benefits and challenges of implementing a global Internet of Things (IoT) network. (20分)答案：一、选择题1. A2. D3. B4. A5. A6. A7. A8. A9. A10. A二、填空题1. ohm2. transduction3. disorder4. cosmochemistry5. information systems6. electroluminescence7. cell8. synthesis9. cytology10. photosynthesis三、简答题1. Machine learning is a subset of artificial intelligence that enables computers to learn from and make decisions based on data, improving at tasks over time through experience without being explicitly programmed.2. Semiconductors are materials with electrical conductivity between that of a conductor and an insulator. They arecrucial in electronic devices like transistors and diodes, allowing for the control of electrical current and the amplification of signals.3. Biodiversity is significant in environmental science as it ensures the stability of ecosystems, supports ecological processes, and provides a variety of services and resources that are vital for human survival and well-being.4. Nanotechnology has the potential to。
时文阅读AI人工智能话题阅读2023-2024学年人教版英语八年级上册
中考英语时文阅读——AI（人工智能）群文阅读专题（含答案）八年级英语上册Unit7 话题阅读（人与社会：科学技术）AI with human touch（文章选自21st Century Teens 初二831期, 题目原创+改编）Imagine you can have phone calls with your favorite star. Is itexciting? AI humans might help with it. Today, AI humans are popular athome and abroad (国内外).As we all know, AI humans now can be like real people. They cando real people’s voices and moves and even copy their personalities (性格). But what else can they do? And what can only be done by humansbut not AI?Digital (数字) humans today appear in many ways. They can be idols (偶像), vloggers (视频博主), reporters, and more. For example, China Daily has its own digital reporter, Yuanxi. She can speak English and covers the wonderful world of Chinese culture. She can process (处理) data fast. This can help the newsroom work faster.In February 2022, Chinese tech company (科技公司) Baidu showed its first digital idol Xi Jiajia. She can change her makeup and how she dresses, and even do livestreams (直播)! During China Fashion Week in September 2022, Xi Jiajia became famous in an online virtual fashion show (虚拟时装秀).“Virtual idols could do something that people cannot do in the real world, such as time travel,” said Liu Qian from Baidu. Liu took the digital tour guides as an example. They can appear to be in different places and from different times in history.But AI humans have their disadvantages (劣势). Take Yuanxi as an example, she still doesn’t have much human touch and EQ. These are something that only a real human can have. What’s more, virtual people can’t team up and communicate with others in real time.As Yuanxi wrote, “Virtual employees (员工) [show] the power (力量) of [AI] but they are not a replacement for traditional human employees.”阅读表达：1.Why is it said that AI humans now can be like real people?2.Do digital humans appear only in one way today?3.Who are the digital humans mentioned in the text?4.When did Baidu show its first digital idol Xi Jiajia?5.What can Xi Jiajia do?6.According to the text, what can only be done by AI but not humans?7.What do you think of AI humans? Why do you think so?参考答案：1.Because they can do real people’s voices and moves and even copy their personalities.2.No.3.They are Yuanxi and Xi Jiajia.4.In February 2022.5. She can change her makeup and how she dresses, and even do livestreams.6.Time travel.7. I think AI humans are popular at home and abroad. Because they are widely used in every filed.（主观题，言之成理即可）阅读理解：1. What do we know about Y uanxi’s work?A. She teaches the cultures of different countries.B. She helps reporters work faster.C. She makes vlogs for China Daily.2. What made Xi Jiajia famous?A. Wearing real dresses for the fashion show.B. Teaching people how to do makeup online.C. Being in an online virtual fashion show.3. What problem do AI humans have?A. They can have scandals.B. They have a human touch.C. It is hard for them to team up.4. The word “replacement” in the last paragraph means _____?A. a tool for workers to shareB. one who takes another’s placeC. one who works together with others5.According to the text, what can only be done by humans but not AI?①Have much human touch①Have EQ.①Team up.①Communicate with others in real time.A.①①①B.①①①C.①①①①答案：BCCBC参考译文：人性化的人工智能想象一下，你可以和自己喜欢的明星通电话。
西电科技英语课后题答案
1矮米特博士2001年毕业于哈佛大学Dr. Emmet graduated from Harvard University in 20012李教授1988年在西安理工大学获得机械工程博士学位Professor Li earned his Ph.D. degree in mechanical engineering from the Xi’an University of Technology in 1988.3现在我们转向讨论一下局与网Now we shall turn to the discussion of local area networks.4 BAINBRIDGE质谱仪是与光谱仪一样重要的仪器The Bainbridge mass spectrometer is as important an instrument as the optical spectrometer.5做这个实验需要多长时间How long a time [或How much time] is required to this experiment?6压力的增加总会引起体积的减少。
An increase in pressure always causes a decrease in volume7图2-5画出了式2-2所表示的情况。
Fig. (2-5) shows what is expressed by Eq. (2-2).8电感的单位是亨利The unit of inductance is the henry.9该电路由一个电池。
一个电感和一个电容器组成This circuit consists of a battery, an inductor and a capacitor.10试计算在A B C三点处的电场。
Compute the electric fields at points a, b, and c.11这颗卫星用于美国与英国法国意大利之间的通信This satellite is used for communications between the United States and Great Britain, France and Italy.12我们假设该天线是垂直的其损耗为零We assume that the antenna is vertical and that its loss is zero.13第6 7 8章论述传输线Chapters 6, 7, and 8 deal with transmission lines.14其误差为千亿分之六Its error is six parts in 1012.15这台计算机所储存的信息比那台多2倍。
科技英语翻译课后练习答案 ppt课件
5. Manufacturing processes may be classified as unit production with small quantities being made and mass production with large numbers of identical parts being produced.
求一正方形或长方形的面积，你只需将其长度乘以宽度。
4. Certain isotopes are not found in nature.
通过改变晶粒的方向可以改变焊缝的性能。
科技英语翻译课后练习答案 ppt课件
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2.1 词义的选择
1. 词类/词性（part of speech）：第1节 翻译练习1
2. 上下文（co-text）：
第1节 翻译练习2
3. 搭配（collocation）：
第1节 翻译练习3
4. 学科专业/语域（register）： 第1节 翻译练习4
第4章 代词的翻译 1、代词的一般译法 2、人称代词的译法 3、形容词性物主代词的译法 4、指示代词的译法 5、不定代词的译法 6、it及其句型的译法 7、总复习题
科技英语翻译课后练习答案 ppt课件
2
目录2
第5章 数词、形容词和副词的 翻译
1、数词的译法 2、形容词的译法 3、副词的译法 4、形容词和副词比较级的译法 5、形容词和副词最高级的译法 6、总复习题
人们发现，自然界里许多元素，都是各种不同的同位素的 混合物。（增译）
科技英语翻译课后练习答案 ppt课件
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3. The two units used most frequently in electricity are ampere and volt: this is the unit of voltage and that of current.
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科技英语unite7答案
1、My home is about _______ away from the school. [单选题] *
A. three hundred metre
B. three hundreds metres
C. three hundred metres(正确答案)
D. three hundreds metre
2、They went out in spite of rain. [单选题] *
A. 因为
B. 但是
C. 尽管(正确答案)
D. 如果
3、Across the river（）. [单选题] *
A. lies a new built bridge
B.lies a newly built bridge(正确答案)
C. a new built bridge lies
D.a newly built bridge lies
4、I had _______ egg and some milk for breakfast this morning. [单选题] *
A. a
B. an(正确答案)
C. the
D. /
5、Once you get on the road, here are some traffic _______ to remember. [单选题] *
A. problems
B. positions
C. rules(正确答案)
D. points
6、Nick got out of bed and _______ a shower. [单选题] *
A. practiced
B. took(正确答案)
C. did
D. made
7、Everyone knows that the sun _______ in the east. [单选题] *
A. falls
B. rises(正确答案)
C. stays
D. lives
8、Before you quit your job, （）how your family will feel about your decision. [单选题] *
A. consider(正确答案)
B. considering
C. to consider
D. considered
9、Mr. Wang is coming to our school. I can’t wait to see _______. [单选题] *
A. her
B. him(正确答案)
C. it
D. them
10、80．Thousands of ________ from other countries visit the village every year. [单选题] * A．robots
B．postcards
C．tourists(正确答案)
D．bridges
11、A survey of the opinions of students（）that they admit several hours of sitting in front of the computer harmful to health. [单选题] *
A. show；are
B. shows ；is(正确答案)
C.show；is
D.shows ；are
12、--All of you have passed the test!--_______ pleasant news you have told us! [单选题] *
A. How
B. How a
C. What(正确答案)
D. What a
13、Mike and his friend are going to the _______ to see the new action movie tonight. [单选题] *
A. book shop
B. restaurant
C. concert
D. cinema(正确答案)
14、Turn down the music. It hurts my _______. [单选题] *
A. nose
B. eyes
C. mouth
D. ears(正确答案)
15、-We’ve spent too much money recently–well,it isn’t surprising. Our friend and relatives_______around all the time [单选题] *
ing
B. had come
C. were coming
D have been coming(正确答案)
16、The huntsman caught only a（）of the deer before it ran into the woods. [单选题] *
A. gaze
B. glare
C. glimpse(正确答案)
D. stare
17、23．Susan doesn’t like cartoons. She would rather ______ Space War”. [单选题] *
A．see (正确答案)
C．seeing
D．to see
18、Seldom _____ in such a rude way. [单选题] *
A.we have been treated
B. we have treated
C. have we been treated(正确答案)
D. have treated
19、His father always _______ by subway. [单选题] *
A. go to work
B. go to school
C. goes to bed
D. goes to work(正确答案)
20、_________ we don't stop climate change, many animals and plants in the world will be gone. [单选题] *
A.Although
B.While
C.If(正确答案)
21、( ) They have_____ useful dictionary. They want to lend it___ us. [单选题] *
A. an; for
B. a; from
C. an; to
D. a; to(正确答案)
22、It’s very hot. Please _______ your coat. [单选题] *
A. look after
B. take off(正确答案)
C. take on
D. put on
23、---Where’s that report?---I brought it to you ____you were in Mr. Black’s office yesterday. [单选题] *
A. if
B. when(正确答案)
C. because
D. before
24、They returned successfully from ______ moon to _____ earth. [单选题] *
A. /; /
B. /; the
C. the; the(正确答案)
D. the; /
25、It’s so nice to hear from her again. ______, we last met more than thirty year ago [单选题] *
A. What ‘s word
B. That’s to say
C. Go ahead
D. Believe it or not(正确答案)
26、72．—? ? ? ? ? ? ? ? ? ? ? ??—Yes, please. I want a sweater. [单选题] *
A．How much
B．Can I help you(正确答案)
C．Excuse me
D．What will you take
27、( ). I’m _____ in that ______ film [单选题] *
A. interesting interested
B. interested interesting(正确答案)
C. interested interested
D. interesting interesting
28、2．I think Game of Thrones is ________ TV series of the year. [单选题] * A．exciting
B．more exciting
C．most exciting
D．the most exciting (正确答案)
29、--Jenny, what’s your favorite _______?--I like potatoes best. [单选题] *
A. fruit
B. vegetable(正确答案)
C. drink
D. meat
30、The weather forecast says that we’ll have occasional rain tomorrow. [单选题] *
A. 偶尔的
B. 不停的
C. 少量的(正确答案)
D. 不可预测的。