2023年职称英语理工A类真题试卷及答案解析.doc

职称英语理工A级真题及答案第1部分：词汇选项（第1-15题，每题1分，共15分）下面每个句子中所有有1个词或短语划有底横线，请为每处划线部分确定1个意义最为靠近选项。1. The rules are too rigid to allow for humane error.A. inflexible B. general C. complex D. direct2. This species has nearly died out because its habitat is being destroyed.A. turned dead B. passed by C. carried away D. become extinct3. The contract between the two companies will expire soon.A. shorten B. end C. start D. resume4. Three world-class tennis players came to contend for this title.A. argue B. claim C. wish D. compete5. The methods of communication used during the war were primitive.A. simple B. reliable C. effective D. alternative6. Respect for life is a cardinal principle of the law.A. moral B. regular C. fundamental D. hard7. The drinking water has become contaminated with lead.A. polluted B. treated C. tested D. corrupted8. Come out, or Ill bust the door down.A. shut B. set C. break D. beat9. She shed a few tears at her daughters wedding.A. wiped B. injected C. produced D. removed10. They didnt seem to appreciate the magnitude of the problem.A. existence B. importance C. cause D. situation11. The tower remains intact even after two hundred years.A. unknown B. unusual C. undamaged D. unstable12. Many experts remain skeptical about his claims.A. doubtful B. untouched C. certain D. silent13. The proposal was endorsed by the majority of members.A. rejected B. submitted C. considered D. approved14. Rumors began to circulate about his financial problems.A. send B. spread C. hear D. confirm15. The police will need to keep a wary eye on this area of town.A. naked B. cautious C. blind D. private 职称英语真题理工(A)词汇题答案：1.A：inflexible2.D：becomeextinct3.B：end4.D：compete5.A：simple6.C：fundamental7.A:polluted8.C：break9.C：produce10.B：importance11.C：undamaged12.A：doubtful13.D：approved14.B：spread15.B：cautious 第2部分：阅读鉴定(第1622题，每题1分，共7分)下面短文后列出了7个句子，请根据短文内容对每个句子做出鉴定;假如该句提供是对的信息，请选择A;假如该句提供是错误信息，请选择B;假如该句信息文中没有提及，请选择C。New Understanding of Natural Silks MysteriesNatural silk, as we all know, has a strength that man-made materials have long struggled to match. In a discovery that sounds more like an ancient Chinese proverb than a materials science breakthrough, MIT researchers have discovered that silk gets its strength from its weakness. Or, more specifically, its many weaknesses. Silk gets its extraordinary durability and ductility (柔韧性) from an unusual arrangement of hydrogen bonds that are intrinsically very weak but that work together to create a strong, flexible structure.Most materials especially the ones we engineer for strength get their toughness from brittleness. As such, natural silks like those produced by spiders have long fascinated both biologists and engineers because of their light weight, ductility and high strength (pound for pound, silk is stronger than steel and far less brittle). But on its face, it doesnt seem that silks should be as strong as they are; molecularly, they are held together by hydrogen bonds, which are far weaker than the covalent (共价) bonds found in other molecules.To get a better understanding of how silk manages to produce such strength through such weak bonds, the MIT team created a set of computer models that allowed them to observe the way silk behaves at the atomic level. They found that the arrangement of the tiny silk nanocrystals (纳米晶体) is such that the hydrogen bonds are able to work cooperatively, reinforcing one another against external forces and failing slowly when they do fail, so as not so allow a sudden fracture to spread across a silk structure.The result is natural silks that can stretch and bend while retaining a high degree of strength. But while thats all well and good for spiders, bees and the like, this understanding of silk geometry could lead to new materials that are stronger and more ductile than those we can currently manufacture. Our best and strongest materials are generally expensive and difficult to produce (requiring high temperature treatments or energy-intensive processes).By looking to silk as a model, researchers could potentially devise new manufacturing methods that rely on inexpensive materials and weak bonds to create less rigid, more forgiving materials that are nonetheless stronger than anything currently on offer. And if you thought you were going to get out of this materials science story without hearing about carbon nanotubes (纳米碳管), think again.The MIT team is already in the lab looking into ways of synthesizing silk-like structures out of materials that are stronger than natural silk like carbon nanotubes. Super-silks are on the horizon.16. MIT researchers carry out the study to illustrate an ancient Chinese proverb.A. Right B. Wrong C. Not mentioned17. Silks strength comes from its weak hydrogen bonds working together.A. Right B. Wrong C. Not mentioned18. Biologists and engineers are interested in understanding natural silks because they are very light and brittle.A. Right B. Wrong C. Not mentioned19. If the hydrogen bonds break due to external forces, they break fast.A. Right B. Wrong C. Not mentioned20. The MIT team had tried different materials before they studies natural silk in the research.A. Right B. Wrong C. Not mentioned21. Carbon nanotubes are currently the most popular topic in materials science.A. Right B. Wrong C. Not mentioned22. It is indicated that materials stronger than natural silk can be expected in the future.A. Right B. Wrong C. Not mentioned 职称英语真题理工(A) 阅读鉴定答案解析：16-22 BABBCAA 第3部分：概括大意和完毕句子（第23-30题，每题1分，共8分）下面短文后有2项测试任务：（1）第2326题规定从所给6个选项中为指定段落每段选择1个最佳标题；（2）第2730题规定从所给6个选项中为每个句子确定一种最佳选项。Black Holes1. Black holes can be best described as a sort of vacuum, sucking up everything in space. Scientists have discovered that black holes come from an explosion of huge stars. Stars that are near death can no longer burn due to loss of fuel, and because its temperature can no longer control the gravitational (重力) force, hydrogen ends up putting pressure onto the stars surface until it suddenly explodes then collapses.2. Black holes come from stars that are made of hydrogen, other gases and a few metals. When these explode it can turn into a stellar-mass (恒星质量) black hole, which can only occur if the star is large enough (should be bigger than the sun) for the explosion to break it into pieces, and the gravity starts to compact every piece into the tiniest particle. Try to see and compare: if a star thats ten times the size of the sun ends up being a black hole thats no longer than 70 kilometers, then the Earth would become a black hole thats only a fraction of an inch!3. Objects that get sucked in a black hole will always remain there, never to break free. But remember that black holes can only gobble up (吞噬) objects within a specific distance to it. Its possible for a large star near the sun to become a black hole, but the sun will continue to stay in place. Orbits do not change because the newly formed black hole contains exactly the same amount of mass as when it was a star, only this time its mass is totally contracted that it can end up as no bigger than a state.4. So far, astronomers have figured out that black holes exist because of Albert Einsteins theory of relativity. In the end, through numerous studies, they have discovered that black holes truly exist. Since black holes trap light and do not give off light, it is nearly impossible to detect black holes via a telescope. But astronomers continue to study galaxies, space and the solar system to understand how black holes might evolve. It is possible that black holes can exist for millions of years, and later contribute to a bigger process in galaxies, which can eventually lead to creation of new entities. Scientists also credit black holes as helpful in learning how galaxies began to form.A. Is there proof that black holes really exist?B. What are different types of black holes?C. How are black holes formed?D. How were black holes named?E. What happens to the objects around a black hole?F. What are black holes made of?23. Paragraph 1 24. Paragraph 2 25. Paragraph 3 26. Paragraph 4 27. Black holes are formed after_.28. When a large star explodes, the gravity compacts every piece into_.29. A newly formed black hole and the star it comes from are of_.30. Albert Einsteins theory of relativity helps to prove_ . A. the creation of new entitiesB. an explosion of huge starsC. the tiniest particleD. the same amount of massE. the existence of black holesF. a fraction of an inch答案： 23-26CFEA27-30BCDE第4部分：阅读理解（第31-45题，每题3分，共45分）下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。第一篇Forecasting MethodsThere are several different methods that can be used to create a forecast. The method a forecaster chooses depends upon the experience of the forecaster, the amount of information available to the forecaster, the level of difficulty that the forecast situation presents, and the degree of accuracy or confidence needed in the forecast.The first of these methods is the persistence method; the simplest way of producing a forecast. The persistence method assumes that the conditions at the time of the forecast will not change. For example, if it is sunny and 87 degrees today, the persistence method predicts that it will be sunny and 87 degrees tomorrow. If two inches of rain fell today, the persistence method would predict two inches of rain for tomorrow. However, if weather conditions change significantly from day to day, the persistence method usually breaks down and is not the best forecasting method to use.The trends method involves determining the speed and direction of movement for fronts, high and low pressure centers, and areas of clouds and precipitation. Using this information, the forecaster can predict where he or she expects those features to be at some future time. For example, if a storm system is 1,000 miles west of your location and moving to the east at 250 miles per day, using the trends method you would predict it to arrive in your area in 4 days. The trends method works well when systems continue to move at the same speed in the same direction for a long period of time. If they slow down, speed up, change intensity, or change direction, the trends forecast will probably not work as well.The climatology method is another simple way of producing a forecast. This method involves averaging weather statistics accumulated over many years to make the forecast. For example, if you were using the climatology method to predict the weather for New York City on July 4th, you would go through all the weather data that has been recorded for every July 4th and take an average. The climatology method only works well when the weather pattern is similar to that expected for the chosen time of year. If the pattern is quite unusual for the given time of year, the climatology method will often fail.The analog method is a slightly more complicated method of producing a forecast. It involves examining todays forecast scenario and remembering a day in the past when the weather scenario looked very similar (an analog). The forecaster would predict that the weather in this forecast will behave the same as it did in the past. The analog method is difficult to use because it is virtually impossible to find a predict analog. Various weather features rarely align themselves in the same locations as they were in the previous time. Even small differences between the current time and the analog can lead to very different results.31. What of the following factors is NOT mentioned in choosing a forecasting method?A. Necessary amount of information.B. Degree of difficulty involved in forecasting.C. Practical knowledge of the forecaster.D. Creativity of the forecaster.32. The persistence method fails to work well whenA. it is rainy.B. it is sunny.C. weather conditions stay stable.D. weather conditions change greatly.33. The trends method works well whenA. weather features are constant for a long period of time.B. weather features are defined well.C. predictions on precipitation are accurate.D. the speed and direction of movement are predicable.34. The analog method should not be used in making a weather forecast whenA. the analog looks complicated.B. the current weather scenario is different from the analog.C. the analog is more than 10 years old.D. the current weather scenario is exactly the same as the analog.35. Historical weather data are necessary inA. the persistence method and the trends method.B. the trends method and the climatology method.C. the climatology method and the analog method.D. The persistence method and the analog method.答案31-35：DDABC 第二篇Students Learn Better With Touchscreen DesksObserve the criticisms of nearly any major public education system in the world, and a few of the many complaints are more or less universal. Technology moves faster than the education system. Teachers must teach at the pace of the slowest student rather than the fastest. And particularly in the United States school children as a group dont care much for, or excel at, mathematics. So its heartening to learn that a new kind of “classroom of the future” shows promise at mitigating some of these problems, starting with that fundamental piece of classroom furniture: the desk.A UK study involving roughly 400 students, mostly aged 8-10 years, and a new generation of multi-touch, multi-user, computerized desktop surfaces is showing that over the last three years the technology has appreciably boosted students math skills compared to peers learning the same material via the conventional paper-and-pencil method. How? Through collaboration, mostly, as well as by giving teachers better tools by which to micromanage individual students who need some extra instruction while allowing the rest of the class to continue moving forward.Traditional instruction still shows respectable efficacy (效力) at increasing students fluency in mathematic