Study on the Producing Technology of the Original Structure Bamboo Composite Board Wooden Table
中国在科技方面取得的成就英语作文
中国在科技方面取得的成就英语作文China's Technological TriumphsHello, my friends! Today, I'm going to tell you about some of the amazing things China has achieved in the world of technology. Get ready to be amazed!First, let's talk about space exploration. Did you know that China has sent many rockets and satellites into space? In 2003, China became the third country in the world to send a human into space, after Russia and the United States. The astronaut's name was Yang Liwei, and he orbited the Earth 14 times in a spacecraft called Shenzhou 5.Since then, China has continued to make great strides in space exploration. In 2019, China landed a spacecraft on the far side of the moon, which is the side that always faces away from Earth. This was a first for any nation, and it helped scientists learn more about the moon's mysterious far side.But China's space adventures don't stop there! In 2020, China brought back rocks and soil from the moon, which will help scientists study the moon's composition and history. And in 2021, China landed a rover on Mars, making it only the secondcountry after the United States to successfully land a rover on the Red Planet.Speaking of planets, did you know that China has also built the world's largest radio telescope? It's called theFive-hundred-meter Aperture Spherical Telescope (FAST), and it's used to study distant galaxies and listen for signals from outer space. FAST is so big that it could fit 30 football fields inside it!Now, let's move on to another area where China is leading the way: high-speed rail. China has the longest high-speed rail network in the world, with over 37,000 kilometers (23,000 miles) of tracks! These trains can travel at speeds of up to 350 kilometers per hour (217 miles per hour), which means you can get from one city to another incredibly fast.Imagine being able to travel from New York City to Chicago in just a few hours! That's how fast these trains are. China's high-speed rail system has made it easier for people to travel around the country and has helped reduce pollution by offering an alternative to driving or flying.Another area where China has made significant progress is in renewable energy. China is the world's largest producer and consumer of renewable energy, especially wind and solar power.In 2021, China installed more wind and solar energy capacity than any other country in the world.China has also become a leader in electric vehicles (EVs). Chinese companies like BYD and Nio are producing some of the most advanced and affordable EVs on the market today. And cities across China are investing in charging stations and other infrastructure to support the growing number of electric cars on the roads.But China's technological achievements go beyond just the big, flashy projects. Chinese companies and inventors have also created many useful and innovative products that we use every day. For example, did you know that the world's first digital camera was invented by a Chinese engineer named Steven Sasson in 1975?And what about mobile payments? China is a world leader in mobile payment technology, with apps like WeChat Pay and Alipay making it easy for people to pay for goods and services with just a few taps on their smartphones.Chinese companies have also made significant contributions to artificial intelligence (AI) and machine learning. Companies like Baidu, Alibaba, and Tencent are at the forefront ofdeveloping AI systems for everything from facial recognition to language translation to self-driving cars.As you can see, China has made incredible progress in many areas of technology, from space exploration to high-speed rail to renewable energy. And with its large population, vast resources, and commitment to innovation, China is sure to continue leading the way in technological advancements for years to come.So, the next time you use your smartphone, ride on ahigh-speed train, or look up at the stars, remember all the amazing things China has accomplished in the world of technology. Who knows, maybe one day you'll even become a Chinese scientist or engineer and help contribute to the country's next big technological breakthrough!。
高二英语科学创新影响因素分析练习题30题(带答案)
高二英语科学创新影响因素分析练习题30题(带答案)1. In the field of scientific innovation, a good educational background is often considered as a ______ factor.A. crucialB. casualC. curiousD. current答案：A解析：本题考查词汇的理解。
crucial表示至关重要的，在科学创新领域，良好的教育背景通常被认为是一个至关重要的因素。
casual 意为随意的，curious意为好奇的，current意为当前的，这三个词都不符合语境。
2. Many scientific innovations are inspired by different cultures. Culture can ______ the way scientists think.A. shapeB. shareC. shineD. shift答案：A解析：本题考查词汇的用法。
shape有塑造的意思，文化能够塑造科学家思考的方式。
share意为分享，shine意为发光，shift意为转移，都不符合句子的含义。
3. The development of modern technology has a close ______ with scientific innovation.A. connectB. connectionC. connectingD. connected答案：B解析：本题考查词性。
这里需要一个名词，connection是名词，表示联系，现代技术的发展和科学创新有着紧密的联系。
connect是动词，connecting是动名词，connected是形容词。
4. In some countries, the lack of government support becomes a major ______ to scientific innovation.A. barrierB. benefitC. baseD. brand答案：A解析：本题考查词汇的理解。
高二英语科技流派练习题40题(答案解析)
高二英语科技流派练习题40题(答案解析)1.With the development of technology, we can now use smartphones to pay for almost everything. This is an example of the impact of _____.A.artificial intelligenceB.internet of thingsC.mobile payment technologyD.virtual reality答案解析：C。
A 选项人工智能主要是指机器模拟人类智能的技术，与用智能手机支付关系不大；B 选项物联网是通过各种设备连接实现信息交换和通信，与手机支付不是直接对应关系；C 选项移动支付技术符合题干中用智能手机支付的描述；D 选项虚拟现实是一种模拟环境的技术，与支付无关。
2.Smart home devices can control lights, temperature and security. This technology belongs to _____.A.5G technologyB.smart city conceptC.internet of thingsD.big data analysis答案解析：C。
A 选项5G 技术主要是提高网络速度和连接性，与智能家居控制不是直接对应；B 选项智慧城市概念范围较大，智能家居只是其中一部分，不是直接所属关系；C 选项物联网可以实现各种设备的连接和控制，智能家居设备属于物联网技术的应用；D 选项大数据分析主要是处理大量数据，与智能家居控制无关。
3.The self-driving car is a major achievement in the field of _____.A.roboticsB.biotechnologyC.nanotechnologyD.space exploration答案解析：A。
高二英语科技成果单选题50题(带答案)
高二英语科技成果单选题50题(带答案)1.The development of technology has brought many____changes to our lives.A.significantB.insignificantC.occasionalD.rare答案：A。
本题考查形容词辨析。
“significant”表示重大的、显著的；“insignificant”表示不重要的；“occasional”表示偶尔的；“rare”表示罕见的。
科技的发展给我们的生活带来了很多重大的变化，所以选A。
2.Modern technology has created____tools for communication.A.efficientB.inefficientC.limitedeless答案：A。
“efficient”表示高效的；“inefficient”表示低效的；“limited”表示有限的；“useless”表示无用的。
现代科技创造了高效的通讯工具，所以选A。
3.The new scientific discovery is of____importance.A.greatB.littleC.someD.no答案：A。
本题考查固定搭配。
“of great importance”表示非常重要。
新的科学发现非常重要，所以选A。
4.Technological advances have led to____improvements in healthcare.A.dramaticB.slightC.noD.rare答案：A。
“dramatic”表示巨大的、戏剧性的；“slight”表示轻微的；“no”表示没有；“rare”表示罕见的。
科技进步给医疗保健带来了巨大的改善，所以选A。
5.The latest technology product is____in design.A.advancedB.backwardC.old-fashionedD.outdated答案：A。
科技发展的英语作文优秀五篇
科技发展的英语作文优秀五篇科技发展的英语作文篇一The development of modern technology has made people's life more complexso people should choose to have a simple and easy life without using what extent do you agree or disagree?Give reasons for your answer and include relevant examples from your knowledge or experience.The advancement of modern technology is making people's life more comfortable and at the same time less those who enjoy the benefits of technologythere is no better time to be alive than nowbut to others life has been increasingly complex and stressful.The issue is whether such new technological machines as computers and the Internet would be our servants forever or eventually could become our masters.All kinds of inventions made possible by technology are designed to be the slaves of human beingsif human beings are not to be slaved by upon a timewe were plain peoplebut that was before we began having relationships with technological systems.By getting involved with computerized machineswe could not help changing the way we live and the way we workfor better or for worse It can be realized that life is more complex because much of modern technology is not born to meet primary human needsand many "unnecessary" inventions are producing negative effects on a living style that used to be relatively simple.Thusthere is an overwhelming feeling of complexity in the sense that machines act like humans and humans act like that "intelligent" machines such as robots are widely applied to take the place of human beings because they are capable of doing many useful jobsalthough making many people jobless.Those who cannot work with computers are disadvantaged and therefore helpless while the traditional skills and simple ways of life are fading awaynever to return again.科技发展的英语作文篇二21st century is the century of technology. nowadays, technology is everywhere around us. the development of technology has a significant affact toward the society. several technologies that we usually use are the internet, computer, and cellphone. these new technologies make our life much easier and better.First, the development of computer changes our life. decades ago, people needed to do lots of complex calculation on hand because they did not have computer, and more obvious, they did not have the software for calculation. as the result of that, people spent hours on the equations that a computer can solve in just a minute. since the development of computer, people are able to use some kind of software to compute lots of complex functions and mathematical calculation. computer becomes the most helpful equipment for the sciencists because they can use their time more efficiently.Also, internet is another useful tool for us today. the development of internet brings a great impact toward the society. instead of going to library and fliping all the books to figure out some information, we can just simply use a mouse and click on the website to do research. the internet leads us to a place where we can find unlimited information and resources. it makes our life much easier and better.The last technology is cellphone. nowadays, many people have a cellphone. but it just appears on the market for about 10 years. it is very convenience to the users because we can talk to anyone we want with a phone as small as a wallet. also, we can communicate with others by making a phone call instead of sending letters. it is very fast and useful way to communicate.In conclusion, i believe the development of technology brings significant impact to our life. it is very helpful to us and i believe technology will keep improving in future.I hope it helps!科技发展的英语作文篇三Nowadays,INTERNET is so important that we can hardly do jobs without it.But every coin has 2 sides,INTERNET also has many disadvantages. The details are as follows.On one hand,INTERNET has many advantages.We usually search information or send E-mails for study for it can rise the working -shopping is a new and convenient way to buy things so that it is also popular among the young people.So we can inferm that the INTERNER has a lot of advantages.On the other hand,INTERNET also has many poor sides.Spending so many time on online games is almost the worst.The result is that people may find they have leinterest in the work and study and than getting in a poor circle.Another aspect is that lacking the face-to-face communication,the chatting and trade on the INTERNET become leand lebelieveable.So we can inferm that INTERNET has many disadvantages.As the reasons concluded above, the INTERNET has both advantages and when we accept the postive aspects and get rid of the poor ones,the INTERNET will be our true and reliable friend.科技发展的英语作文篇四"Please put your phone down Daddy, we haven't finished the story!" Hearing these heartfelt words from my four year old daughter was an uncomfortable wake up call. How had I let the shiny electronic box in my hand take so much of my attention that it could even interrupt a short bedtime story with my precious children?It's no exaggeration to suggest that our mobile devices are in danger of taking over our entire lives. Time magazine found that 68% of users take their devices to bed with them, 20% check their phones every ten minutes and one third report feeling anxious when briefly separated from their beloved gadget. According to Osterman research, 79% of respondents take their work-related device on vacation and 33% admit to hiding from family and friends in order to check Face and Twitter. It's hard to deny that these are worrying trends.科技发展的英语作文篇五Technology has been an important motivation in the progress of human civilization.With the help of technology we can improve our life 。
Study on the Properties of Semiconductors
Study on the Properties ofSemiconductorsSemiconductors are materials that have electrical conductivity between a conductor and an insulator. They are essential components of modern electronic devices. The study of the properties of semiconductors is crucial for the development of new technologies.One of the most important properties of semiconductors is their band structure. A band structure determines how electrons move within a material. In semiconductors, there are two bands that are important for their electrical properties: the valence band and the conduction band. The valence band is the band that contains the electrons that are bound to the atoms in the material. The conduction band is the band that contains the electrons that are free to move within the material.The energy gap between the valence band and the conduction band is called the band gap. For semiconductors, the band gap is small enough that electrons can be excited from the valence band to the conduction band by thermal energy or by absorbing photons. This property makes semiconductors useful for devices such as solar cells and light-emitting diodes.The electrical conductivity of semiconductors can be controlled by doping them with impurities. Doping is the process of intentionally adding impurities to a material to change its electrical properties. Doping can either increase or decrease the electrical conductivity of a semiconductor. N-type doping adds impurities that provide excess electrons to the material, making it more conductive. P-type doping adds impurities that remove electrons from the material, making it less conductive.Another important property of semiconductors is their mobility. Mobility is a measure of how easily electrons can move within a material in response to an electric field. Semiconductors with high mobility are more efficient at conducting electricity than those with low mobility.Recent research has focused on developing new semiconductor materials with improved properties. For example, researchers have developed so-called “two-dimensional” materials that are only a few atoms thick. These materials have unique electrical and optical properties and could be useful for developing new types of electronic devices.In conclusion, the study of the properties of semiconductors is essential for the development of modern electronic devices. Semiconductors have unique electrical properties that can be controlled through doping and other techniques. Improving the properties of semiconductors is an area of active research and could lead to new technologies in the future.。
研究生学位英语考试试题
2005年1月份研究生学位课英语统考试题Paper OnePart I ：Listening Comprehension (25 minutes, 20 points )Section A (1 point each)1.A: He refuses to help the woman. B: He can‘t handle the equipment by himself.C: He thinks some other people can do it better.D; He thinks the equipment is too heavy for the woman.2.A: His colleagues have contributed a lot. B: All of his colleagues congratulated him.C. The award has been given to his colleagues. D He doesn‘t deserve the honor.3. A: He dislike Jack‘s name. B He doesn‘t care who Jack is.C He doesn‘t know Jack well.D He dislikes Jack.4. A: The man is cracking a joke on her.B It is impossible to buy a genuine antique for so little money.C The man is out of his mind about the old vase.D The man has run into a great fortune.5. A: He can‘t find a good idea about the problem. B He feels hopeless about the project.C He has encountered another problem.D He is going to give up the project.6. A: It is worthwhile. B It has a very tight schedule.C It was a waste of time.D It took him too much time on the road.7. A: It‘s useless to talk to the professor. B The professor is often unfair.C The man has done well enough.D The man can‘t be be tter next time.8. A The man should not say things like that. B The man should fight back.C The man should show his anger openly.D The man should not complain openly.9. A: She was injured in the shoulder. B She disliked the people who attended the party.C She was laughed at for her behaviour.D She was unpopular at the party.Section B (1 point each)Mini-talk One10. A: Improving the conditions of farm animals. B: Increasing the production of farm animals.C: Regulating the food marketing system.D: Regulating the food stores and restaurant chains.11. A: Because they want to save more money. B: Because they want the hens to lay more eggs.C Because they want the hens to grow more lean meat.D Because they want to sell the hens at a better price.12. A: Chickens should be kept in clean places. B: Pigs should be housed in large metal boxes.C: Farm animals should be slaughtered in factories.D Farm animals should be killed without feeling pain.Mini-talk Two13. A: Under the mountains is the state of Nevada.B: At the power centers in almost forty states.C: Under the deep ocean . D Near the inactive volcanoes.14. A: People object to burying it at the power centers.B: The power centers have no more space to store it.C: It is very dangerous to bury it in populous areas.D: The new site is the estate of the federal government.15. A; There are active volcanoes nearby. B: Some people still live in the area.C: The area is close to Las Vegas. D The area is geographically unsafe.Section C (1 point each)You will hear the recording twice. At the end of the talk there will be a 3-minute pause, during which time you are asked to write down your answers briefly on the Answer Sheet. You now have 25 seconds to read the questions (请在录音结束后把16-20题的答案抄写在答题纸上.) 16．What percentage of plant and animal species on Earth do rain forests contain?17. What critical role do rain forests play besides being home to animals and plants?18. How much has global output of carbon dioxide increased in the past century?19. To be classified as a rain forest, how should the trees look?20. How large is the size of the rain forest in South America?Part I Vocabulary Section A1.This student was expelled from school because he had forged some documents for overseasstudy.A frustratedB formulatedC fabricatedD facilitated2.Opinion polls suggest that the approval rate of the president is on the increase.A agreementB consensus Cpermission D support3. A man of resolve will not retreat easily from setbacks or significant challenges.A pull outB pull upC pull inD pull over4. As few household appliances are now perfect, this minor defect is negligible.A detectableB triflingC inexcusableD magnificent5. The U.S. athletes topped the gold medal tally for the 3rd straight time this summer.A directB proceedingC verticalD successive6. Despite tremendous achievement, formidable obstacles to development will persist.A difficultB sustainableC externalD unpredictable7. Moderate and regular exercise can boost the rate of blood circulation and metabolism.A restrictB reduceC increaseD stabilize8. The manager is seeking some cost-effective methods that can call forth their initiative .A efficientB conventionalC economicalD unique.9. The report proposes that students be allowed to work off their debt through community service.A pay offB get offC dispose ofD run off10. It was a tragic love affair that only gave rise to pain.A brought forwardB brought aboutC brought downD brought inSection B :11. As females in their 40s tend to ____ weight, they are to go in for outdoor activities.A take onB hold onC carry onD put on12. The shop-owner took a load of ____-crusted bread and handed it to the child.A fragileB crispC vagueD harsh13. The excessive hospitality ____ the local officials failed to leave us assured.A on the point ofB on the grounds ofC on the advice ofD on the part of14.These intelligence officers tried a ___ of persuasion and force to get the information they wanted.A combinationB collaborationC convictionD confrontation15. The terminally ill patient lying in the ___ care unit was kept alive on life support.A apprehensiveB intensiveC extensiveD comprehensive16. The very sound of our national anthem being played at the awarding ceremony is ____.A ice-breakingB eye-catchingC painstakingD soul-touching17. Leading universities in China prefer to enroll ___ brilliant high school students.A intellectuallyB intelligiblyC intelligentlyD intimately18. When a heavy vehicle is ___ in the mud, the driver has to ask for help.A involvedB stuckC interferedD specialized19. A risk or effect may diminish ___, but it may also increase for some reason.A at willB over timeC under wayD so far20. It‘s in your best ____ to quit smoking, for you have some breathing problems.A sakeB benefitC advantageD interestPart II. Cloze―Techno-stress‖----frustration arising from pressure to use new technology----is said to be 21 , reports Maclean‘s magazine of Canada. Studies point to causes that 22 ―the never-ending process of learning how to use new technologies to the 23 of work and home life as a result of 24 like e-mail, call-forwarding and wireless phones.‖ How can you cope? Experts recommend setting 25 . Determine whether using a particular device will really simplify life or merely add new 26 . Count on having to invest time to learn a new technology well enough to realize its full benefits. ― 27 time each day to turn the technology off,‖ and devote time to other things afforded or deserving 28 attention. ―People start the day by making the 29 mistake of opening their e-mail, instead of wo rking to a plan,‖ notes Vancouver productivity expert Dan Stamp. ―The best hour and a half of the day is spent on complete30 .‖21. A descending B narrowing C mounting D widening22. A pass on B range from C deal with D give up23. A confusion B construction C contribution D conduction24. A creations B promotions C productions D innovations25. A laws B boundaries C deadlines D barriers26. A convenience B advantages C flexibility D complexity27. A Put forward B Put across C Put aside D Put up28. A prior B major C senior D superior29. A fragmental B fictional C fractional D fundamental30. A relaxation B entertainment C rubbish D hobbyPart III. Reading ComprehensivePassage OneThe study of genetics has given rise to a profitable new Industry called biotechnology. As the name suggests, it blends biology and modern technology through such techniques as genetic engineering. Some of the new biotech companies, as they are called, specialize in agriculture and are working enthusiastically to patent seeds that give a high yield, that resist disease, drought, and frost, and that reduce the need for hazardous chemicals. If such goals could be achieved, it would be most beneficial. But some have raised concern about genetically engineered crops.―In nature, genetic diversity is created within certain limits,”says the book Genetic Engineering, Food, and Our Environment.―A rose can be crossed with a different kind of rose, but a rose will never cross with a potato…‖ Genetic engineering, on the other hand, usually involves taking genes from one species and inserting them into another in an attempt to transfer adesired property or character. This could mean, for example, selecting a gene which leads to the production of a chemical with antifreeze properties from an arctic fish, and joining it into a potato or strawberry to make it frost-resistant. It is now possible for plants to be engineered with genes taken from bacteria, viruses, insects, animals or even humans.In essence, then, biotechnology allows humans to break the genetic walls that separate species.Like the green revolution, what some call the gene revolution contributes to the problem of genetic uniformity---some say even more so because geneticists can employ techniques such as cloning and tissue culture, processes that produce perfectly identical copies, or clones. Concerns about the erosion of biodiversity, therefore, remain. Genetically altered plants, however, raise new issues, such as the effects that they may have on us and the environment. ―We are flying blindly into a new era of agricultural biotechnology with high hopes, few constraints, and little idea of the potential outcomes,‖ said science writer Jeremy Rifkin.31. According to the author, biotech companies are ______A mostly specialized in agriculture.B those producing seeds of better propertiesC mainly concerned about the genetically engineered crops.D likely to have big returns in their business.32. Now biotech products are made ____.A within the limits of natural genetics .B by violating laws of natural genetics.C without the interference of humans.D safer than those without the use of biotechnology33. In nature, genetic diversity is created ____A by mixing different speciesB within the species itselfC through natural selectionD through selection or contest34.Biotechnoly has made it possible ____A for us to solve the food shortage problem in the world.B for plants to be produced with genes of humans.C for humans to assume the cold-resistant property.D to grow crops with the taste of farm animals.35. According to the author, with the development of biotechnology ____A the species of creatures will be reduced. D we will suffer from fewer and fewer diseases.B our living environment will be better than it is now.C humans will pay for its side effect.36. T he author‘s attitude towards genetic engineering can best be described ____A optimisticB pessimisticC concernedD suspiciousPassage TwoThe practice of capital punishment is as old as government itself. For most of history, it has not been considered controversial. Since ancient times most governments have punished a wide variety of crimes by death and have conducted executions as a routine part of the administration of criminal law. However, in the mid-18th century, social critics in Europe began to emphasize the worth of the individual and to criticize government practices they considered unjust, including capital punishment. The controversy and debate whether government should utilize the death penalty continue today.The first significant movement to abolish the death penalty began during the era known as the Age of Enlightenment. In 1764 Italian jurist and philosopher Cesare Beccaria published An Essay on Crimes and Punishments. Many consider this influential work the leading document in the early campaign capital punishment. Other individuals who campaigned against executions duringthis period include French authors V oltaire and Denis Diderot, British philosophers David Hume and Adam Smith, and political theorist Thomas Paine in the United States.Critics of capital punishment argue that it is cruel and inhumane, while supporters consider it a necessary form of revenge for terrible crimes. Those who advocates the death penalty declare that it is a uniquely effective punishment that prevents crime. However, advocates and opponents of the death penalty dispute the proper interpretation of statistical analyses of its preventing effect. Opponents of capital punishment see the death penalty as a human right issue involving the proper limits of governmental power. In contrast, those who want governments to continue to execute tend to regard capital punishment as an issue of criminal justice policy. Because of these alternative viewpoint, there is a profound difference of opinion not only about what is the right answer on capital punishment, but also about what type of question is being asked when the death penalty becomes a public issue.37. We can learn from the first paragraph that in ancient times _________A death penalty had been carried out before government came into being.B people thought it was right for the government to conduct executions.C death penalty was practiced scarcely in European countries.D many people considered capital punishment unjust and cruel.38. Why was capital punishment questioned in the mid-18th century in Europe?A People began to criticize their government.B The government was unjust in this period.C People began to realize the value of life.D Social critics were very active at that time.39. Italian jurist and philosopher Cesare Beccaria ____A was the first person to question the rightness of death penalty.B was regarded as an important author criticizing capital punishment.C was the first person who emphasized the worth of the individuals.D first raised the theory against capital punishment.40. Critics of capital punishment insist that it ___.A violates human rights regulations.B is an ineffective punishment of the criminalsC is just the revenge for terrible crimes.D involves killing without mercy.41. The advocates and opponents of the death penalty _____A agree that it is a human rights issueB agree that it can prevent crimes.C explain its statistical analyses differentlyD think that they are asked different types of questions.42. The author‘s attitude towards capital punishment can be summarized as _____A supportiveB criticalC neutralD contradictoryPassage ThreeBears mostly live alone, except for mothers and their babies, and males and females during mating season. Bears form temporary groups only in exceptional circumstances, when food is plentiful in a small area. Recent evidence also suggests that giant pandas may form small social groups, perhaps because bamboo is more concentrated than the patchy food resources of other bear species. Other bears may live alone but exist in a social network. A male and female may live in an area partly shared in common----although they tolerate each other, each defends its range from other bears of the same sex. Male young usually leave their mothers to live in other areas, but female young often live in a range that is commonly shared with that of their mother.The key to a bear‘s survival is finding enough food to satisfy the en ergy demands of its largesize. Bears travel over huge territories in search of food, and they remember the details of the landscape they cover. They use their excellent memories to return to locations where they have had success finding food in past years or seasons. Most bears are able to climb trees to chase small animals or gain access to additional plant vegetation. The exceptions are polar bears and large adult brown bears----their heavy weight makes it difficult for them to climb trees.Bears that live in regions with cold winters spend the coldest part of the year asleep in sheltered dens, including brown bears, American and Asiatic black bears, and female polar bears. Pregnant females give birth in the winter in the protected surroundings of these dens. After fattening up during the summer and fall when food is abundant, the bears go into this winter home to conserve energy during the part of the year when food is scarce. Winter sleep differs from hibernation in that a bear is easily aroused from sleep. In addition, a bear‘s body temperature drops only a few degrees in its winter sleep. In contrast, a true hibernator undergoes more extensive changes in bodily functions. For instance, the body temperature of the Arctic ground squirrel drops from 380C to as low as -30C.43. Most bears live alone because _________A they don‘t want to keep a social network.B each bear feeds on different kinds of food.C male and female bears can‘t tolerate each other.D they don‘t want other bears to share th eir food.44.According to the passage, bears of the same sex ____A can get along with each other peacefully.B share their range with each other.C live in an area partly shared in common.D can‘t live peacefully in the same area.45.As is told about bears in the passage, we know that _____A it is easy for bears to find enough food if they can climb trees.B a bear can long remember where it has found food.C all except polar bears are able to climb trees to catch their prey.D all except polar bears and adult brown bears feed on small animals.46. Bears sleep in their sheltered dens in cold winter because ____A their babies need to be born in a cold and protected surrounding.B they need to fatten themselves up in the cold season.C they need to convert their fat into energy in winter.D they can‘t find enough food in the cold season.47. Winter sleep differs from hibernation in that _______A animals in hibernation don‘t wake up easily.B animals in hibernation are aroused regularly for energy supply.C the body temperature of animals in winter sleep doesn‘t change.D animals in winter sleep experience drastic changes in bodily functions.48. The passage is mainly about ___.A the species of bearsB the food category of bearsC the winter sleep of bearsD the behavior of bearsPassage FourThe young man who came to the door--- he was about thirty, perhaps, with a handsome, smiling face---- didn‘t seem to find my lateness offensive, and led me into a larg e room. On one side of the room sat half a dozen women, all in white; they were much occupied with a beautiful baby, who seemed to belong to the youngest of the women. On the other side of the room sat seven or eightmen, young, dressed in dark suits, very much at ease, and very imposing. The sunlight came into the room with the peacefulness that one remembers from rooms in one‘s early childhood--- a sunlight encountered later only in one‘s dreams. I remember being astounded by the quietness, the ease, the peace , and the taste. I was introduced, they greeted me with a genuine cordiality and respect ---and the respect increased my fright, for it meant that they expected something of me that I knew in my heart, for their sakes, I could not give ---and we sat down. Elijah Muhammad was not in the room. Conversation was slow , but not as stiff as I had feared it would be. They kept it going, for I simply did not know which subjects I could acceptably bring up. They knew more about me and read more of what I had written, than I had expected , and I wondered what they made of it all, what they took my usefulness to be. The women were carrying on their own conversations, in low tones; I gathered that they were not expected to take part in male conversations. A few women kept coming in and out of the room, apparently making preparations for dinner. We, the men, did not plunge deeply into any subject, for, clearly, we were all waiting for the appearance of Elijah. Presently, the men, one by one, left the room and returned. Then I was asked if I would like to wash, and I, too, walked down the hall to the bathroom. Shortly after I came back, we stood up, and Elijah entered. I don‘t know what I had expected to see. I had read some of his speeches, and had heard fragments of others on the radio and on television, so I associated him with strength. But, no ----the man who came into the room was small and slender, really very delicately put together, with a thin face, large warm eyes, and a most winning smile. Something came into the room with him ---- his worshipers‘ joy at seeing him, his joy at seeing them. It was the kind of encounter one watches with a smile simply because it is so rare that people enjoy one another.49.Which of the following is the best alternative word f or ―imposing‖?A EnthusiasticB HostileC ImpressiveD Anxious50. Which word best describes the atmosphere in the room?A TranquilB SolemnC ChaoticD Stressful51.How did the author feel when he was greeted with respect?A DelightedB AstonishedC EmbarrassedD Scared52. Which of the following statements is true about the author?A He talked little.B He was puzzledC He enjoyed the conversationD He got more respect than he deserved.53. The man didn‘t get deeply involved in any subject because they ____A had little knowledgeB didn‘t know one another well.C wanted to relax themselvesD awaited the arrival of someone important54. What can we learn about Elijah?A He was admired by others.B He was very handsome.C He was a man with determinationD He was happy to give speeches.Passage FiveSingapore‘s Mixed Reality Lab is working on new ways of interacting with computers, including wearable devices and virtual war room that will allow officials to work together online as if they were all in one place. Its director is a spiky-haired Australian, a postmodern match for the fictional British agent James Bond‘s tool man, Q.It is funded by the Defense Science & Technology Agency, which controls half the $ 5 billion defense budget, and sponsors hundreds of research projects every year. The agency came to worldwide attention last year when it took justone day to customize a thermal scanner in order to detect travelers with high fever, helping to stem the spread of SARS.DSTA is now working on a range of projects that are attracting attention in both the commercial and military worlds. It devised an air-conditioning system that harnesses melting ice and cool seawater to conserve electricity at the new Changi Naval Base, and could have broad civilian applications.Singapore can easily afford Western hardware, but off-the-shelf products are often unsuitable for the tropical conditions in Southeast Asia. For example, the DSTA is funding development of an anti-chemical-weapons suit that works not as a shield, but as a sort of weapon. The Singapore garments, made of a revolutionary plastic-like material that is much lighter and cooler than traditional fabrics, actually degrade suspect substance on contact.Much of the agency‘s work is geared toward helping this resource-poor city-state overcome its natural limitations, says its director R&D, William Lau Yue Khei. Conserving manpower is one of the agency‘s most critical assignmen ts, because Singapore is a nation of 5 million people dwarfed by larger neighbors, including Indonesia and Malaysia. Right now, the biggest DSTA project is computerizing a stealth warship so that it can run on half the usual crew. Making equipment lighter is a particular agency specialty, because the universal military rule of thumb is that a soldier should carry no more than one third his body weight, and that seems that smaller Singaporean soldiers should carry no more than 24 kilos, or 20 percent less than Europeans, says DSTA project manager Choo Hui Weing. One such program: the Advanced Combat Man System, has produced a lightweight handguard that controls an integrated laser range finder, digital compass and a targeting camera. Top that, Q.55. It can be inferred from the passage that Q is probably________A a mechanic in James Bond‘s garage.B a fictional Australian with spiky hair.C a director of the Advanced Combat Man SystemD An imaginary engineer who invents advanced equipment.56. Which of the following statements concerning DSTA true?A It became world-known for its high efficiency in preventing the SARS spread.B It funds numerous research programs, including Mixed Reality lab.C It devised an air-conditioning system now widely used in households.D It takes credit for conserving electricity at the new Changi Naval Base.57. The suit described in the third paragraph can be used as a sort of weapon mainly because ___A it is made of a new material resembling plastics.B it can reduce harmful effects of chemicals on it.C it has been adapted to the tropical weather there.D its light weight allows soldiers to carry more equipment.58. Which of the following is Not mentioned as a disadvantage of Singapore?A Smaller soldiersB Smaller populationC Limited defense budgetD Limited natural resources59. The Advance Combat Man System is mentioned in the last paragraph mainly to show ____A what DSTA has done to meet the country‘s special needs.B how sophisticated the equipments designed by DSTA can be.C why it is difficult for Q to compete with CHoo Hui Weing .D how Singapore‘s technology is superior to that of the British.60. The main purpose of the passage is to ____A analyze Singapore‘s defense system.B summarize the contributions of DSTA.C introduce the technical advantages of a small country.D describe the roles and achievements of a government agency.Paper Two Part IV TranslationSection AQuitting smoking is more of a matter of willpower than of individual choice, for smoking is widely recognized as addictive. Although counseling and medication can increase the odds that a smoker quits permanently, the best way to avoid dilemmas is never to take up smoking to begin with.The irreversible effects of cigarette smoking vary in intensity and are related both to the amount and duration of exposure and the age at which the person is initially exposed. This report challenges the notion that a few years of exposure to smoking will have no lasting harmful consequences. We hope to discourage this prevalent but vital habit and suggest that tobacco-related health effects decline substantially as time away from smoking increases. Section B人们越来越意识到开发环保型产品的重要性. 为实现长期可持续发展, 发达国家应不惜代价减少温室气体的排放. 如果目前全球变暖的速度保持不变, 东京和伦敦等大城市从地球上消失的可能性将是20年前的10倍.Part V Writingwrite a compositions of no less than 150 words under the title of “Knowledge from books and knowledge from experience” . Your composit ion should be based on the following outline:1Compare and contrast knowledge gained from experience with knowledge gained from books. 2．Explain which source is more important?Answer1-10 CDABD, ACCAB, 11-20 DBDAB, DABBD 21-30 CBADB, DCADC31-40 DBBBA, CBCBD, 41-50 CCDDB, DADCA 51-60 DADAD, CBCABTranslation : Section BThere is a growing realization/awareness that developing environment-protecting products really counts. To fulfil the long-term and substantial development, developed countries should at all costs decrese the emission of greenhouse gases. If the speed of global warming nowadays continues, the probability of disappearance from the earth to such big cities as Tokyo and London will be 10 times as fast as that of 20 years ago.2005年6月研究生学位英统考试题Paper OnePart I Listening Comprehension（25 minutes, 20 points ）Section A (1 point each)1.A: To ask his boss for leave. B: To work in his place.C To meet his friend at the airport.D To cover his absence from his boss.2. A; He doesn’t want to go to the show, as he is not interested in it.B: He is not free to go to the fashion show with the woman.C He can’t go with the woman, as he has to finish his paper.D he can’t go with the woman, as he has a pile of paperwork to do.3. A: He has been pretty busy. B: He has been mad.。
介绍我国科技发展的小文章英语作文
介绍我国科技发展的小文章英语作文The Amazing Science and Tech of China!Hi everyone! My name is Xiaoming and I'm a 5th grader here in Beijing. Today I want to tell you all about the really cool science and technology that has been developing in my country, China. Get ready to be amazed!First, let me tell you about some of the awesome transportation technology China has been working on. China now has the largest network of high-speed rail in the world! The bullet trains can go over 300 km/h (186 mph)! That's like driving on the highway at full speed. But these trains are smoother, quieter, and more energy-efficient than cars. I love riding the high-speed rail when my family travels across China during holidays.China also has the highest bridge in the world - the Guanxing Qiaoat Bridge which stretches over half a mile above a canyon! And get this, they are now building an undersea tunnel rail line connecting the mainland with Taiwan! How cool is that? Once it's done, you could take a train all the way from Beijing to Taipei without having to fly or take a boat.Talking about flights, China's aviation industry has also been soaring. They have developed some vraised new commercial aircraftmodels like the C919 passenger jet and Y-20 large cargo plane. The C919 can carry over 150 passengers and the Y-20 is huge - it's one of the biggest military transport planes in the world! China is even working on building a supersonic passenger plane that could fly across the Pacific Ocean in just a few hours.Aerospace is another area where China has made giant leaps. Did you know China has now launched over 400 spacecraft and built a permanent space station in orbit? The massive Tiangong space station has room for three astronaut crews to live and work in for months at a time. China has even landed rovers on the Moon and Mars to study those worlds up close. Pretty soon, China wants to build an international lunar research station and eventually send astronauts to explore the lunar surface themselves. I hope I can be one of those astronauts when I grow up!Artificial intelligence, or AI, is an area of science that is developing extremely quickly here. AI refers to computer software that can perceive, learn, reason, and assist humans with all kinds of tasks. Maybe you have used digital assistants like Sirior Alexa that use basic AI? Well, in China AI is being used for way more advanced applications.Chinese companies are leaders in fields like facial recognition, language processing, robotics, and autonomous driving. AI algorithms can already identify people and written text better than humans can. Millions of service robots are being used in stores, hospitals, warehouses and even as companions for elderly people. Last year, an AI system even passed China's ultra-tough medical licensing exam better than many human test-takers!Perhaps most exciting are the self-driving cars being developed and tested on China's roads. Companies like Baidu and Pony.ai are making safe autonomous vehicles that could one day drive themselves with nobody behind the wheel. I can't wait until my family can just summon a self-driving robotaxi with an app to take us wherever we need to go!Technology in China isn't just changing transportation and AI though. Chinese scientists and engineers are innovating in many other fields too. For example, in renewable energy, China leads the world in producing affordable solar panels and wind turbines. It has the most solar and wind power capacity of any country as it works to have cleaner air and address climatechange. I've even seen some roads and buildings near my home covered in solar panels to generate their own electricity from the sun's rays!Speaking of buildings, China is constructing some of the tallest and most advanced skyscrapers in the world using cutting-edge architecture and materials. The upcoming CTF Guangzhou Tower will be over 1,700 feet tall - taller than the current record holder! China is a global pioneer in things like 3D printed construction, ultra-strong concrete and steel alloys, and smart building systems too.Medicine is another field where Chinese innovation is helping people live healthier lives. Covid-19 vaccines developed by Chinese companies have helped protect billions worldwide against the pandemic. Researchers are also working on new treatments using gene editing, stem cells, and nanomaterials to fight cancer, inherit diseases and other illnesses. China is a leader in areas like genomic sequencing and brain-computer interfaces that could lead to amazing healthcare breakthroughs.Wearable technology and the Internet of Things are two other huge trends I'm really excited about. Smart watches, fitness bands, augmented reality glasses and even smart clothing with embedded sensor chips are becoming so common. Anything youcan think of - home appliances, vehicles, industrial equipment - can now be manufactured with wireless connectivity to send data and receive instructions over the internet. A lot of the chips, sensors and other hardware powering these devices is made right here in China.As China's economy and influence in the world continues growing, I know we'll see even more mind-blowing developments in science and tech that could benefit people across the globe. I can't wait to see what kinds of cool new inventions and discoveries await me and my generation as we grow up. The future of Chinese innovation is looking brighter than ever before!。
职称英语阅读理解2013理工印全
第六篇Making Light of SleepAll we have a ……1 .The clock located inside our brains is similar to our bedside alarm clock becauseit controls when we wake，when we eat and when we sleep.it has a cycle of 24 hours.it is a cycle also called circadian rhythm.it can alarm any time during 24 hours.2. What is implied in the second paragraph?Young children's biological clock has the same rhythm with that of the teenagers.People after puberty begin to go to bed earlier due to the change of the biological clock.Children before puberty tend to fall asleep earlier at night than adolescents.Teenagers go to bed later than they used to due to the light from the computer screen.3. In the third paragraph the author wants to tell the reader that it is natural for teenagers to stay up late and get up late. staying up late has a bad effect on teenagers' ability to think and learn.during puberty most teenagers experience a kind of gray cloud. it is hard for teenagers to get out of bed in the morning.4. Which of the following statements is NOT true according to the fourth and fifth paragraphs?Our biological clock resets itself automatically.light gets through our eyes and resets our biological clock.Our internal clock as well as the alarm clock can be reset automatically.Our internal clock，like the alarm clock，can be reset.5. According to the last two paragraphs，what did the previous researchers think about the human eye's light-sensing system? The human eye had two light-sensing systems.The human eye had one light-sensing system.The human eye could sense the light of day more quickly than the dark of night.The human eye could reset our internal clocks in accordance with the alarm clocks.第十九篇Graphene's SuperstrengthBig technology comes in ……1.What would change the future of electronics according to engineers?Big technology. Creative ways.Graphene.Both A and B.2. According to the second and third paragraphs，what is true of graphene?It can be used to make paper.It is possible to see it with our naked eye.It is easy to find graphene.It is possibly the thickest material in the world.3.Which of the following can be used to replace the word “apply”in paragraph 4?request. polish. use. put.4.Which of the following is NOT meant in the last two paragraphs?Graphene is made of graphite，one of the softest materials in the world.Graphite is made of layers of graphene，the thinnest material in the world.When we get to the thinnest possible layer of graphite，we find graphene.With a pencil，a sheet of paper and a piece of adhesive tape，we can find graphene.5. Graphene's superstrength lies in the fact thatIt is the thinnest material in the world.It is made of the most abundant elements in the world.It can help to make electronic components smaller.It helps engineers to produce more sensitive electronic products. *第三＋八篇"Life Form Found" on Saturn's Titan Scientists say they have ……1 .What have scientists found about Saturn?They have found a new moon orbiting Saturn.They have found methane-based life on Saturn.They have found methane-based life on Titan.They have found earthlike life on a Saturn's moon.2. What do scientists say about Titan?There are life clues there. There is acetylene there.Water on Titan exists in the form of ice.Rivers and lakes there contain life formals.3. To date, scientists have not yet detected this form of life.(paragraph 5)What does "this form of life" refer to?Water-based life. Methane-based life.Liquid-water-based microorganisms. Gas-based life.4. What can be inferred from what Allen said?Scientists have different arguments over whether there is life on Titan.Scientists all agree that there is life on Titan.Scientists all suggest that a biological explanation is reasonable. Scientists all agree that a non-biological chemical reaction is a possible explanation.5. Which of the following can replace the title of this passage? Earthlike Living Beings Found on Titan.Finding of One More Moon of Saturn.Titan, a New Satellite Found.A different Life Form, a Possibility.*第四十篇Teaching Math, Teaching AnxietyIn a new study……1. What is the result of the research at the University of Chicago, according to the first paragraph?Girls comfortable with their own math skills are better than boys at math.Girls uncomfortable with their own math skills are not as good as boys at math.Female teachers' math skills have influence over girl students' math skills.Female teachers' confidence in their math skills is related to girl's math skills.2. What is implied in the third paragraph?Math teachers, like math learners, do not like the subject due to its difficulty.A difficult subject like math may affect teachers' confidence in teaching the subject.Teachers are more anxious teaching math than their students learning math.Math is so difficult that no teachers like to teach it.3. According to the experiment, those teachers were probablyanxious about math when they feltnervous memorizing the numbers of a sales receipt.helpless saving the numbers of a sales receipt.uneasy reading the numbers of a sales receipt.hopeless filling in the numbers of a sales report.4. The sixth paragraph tells us that the research findingsprove a strong link between female teachers' math anxiety and their female students' math achievements.show that male students are less likely to be affected by their math anxiety than female students.provide strong evidence that math superstars are more likely to be males than females.discover a strong link between teachers' math anxiety and their students' math achievements.5. David Geary thinks thatthe study is interesting but it is based on unreliable research process.the research results need to be retested based on a larger sample.the research results need to be reinterpreted to be meaningful. the study is well based and produces significant results.+第四＋五篇Small But WiseOn December 14,NASA ……1 .What is so special about WISE?It is small in size but carries a large camera.It is as small as a trashcan.Its digital camera can help astronomers to see the unknown space.Never before has a telescope carried a digital camera in space.2. Which is NOT the synonym for the word "snap" in the third paragraph?make shoot take photograph.3. The camera on WISEis no different from an ordinary camera.does not see infrared radiation while the ordinary camera does. catches the infrared radiation while the ordinary camera does not.reflects light that human eyes can see.4. Which of the following is NOT correct about "asteroids" according to paragraph 7?Asteroids float through space giving off visible light. Asteroids do not reflect light that reaches them.It is difficult to take asteroids' pictures by ordinary cameras, The WISE telescope can take pictures of asteroids5.What is implied in the last paragraph?Brown dwarfs give off visible light.Brown dwarfs give off infrared radiation.Brown dwarfs are power stars like the sun.Brown dwarfs are impossible to see with the WISE telescope. +第四十六篇Ants Have Big Impact on Environment as "Ecosystem Engineers"Research by the University……1 .Why are ants compared to ecosystem engineers?Because they build their own nests.Because they collect food.Because their activity affects the environment.Because they are predators. 2. As predators, antsprey on small as well as large animals.collect nutritious food from the soilcollect food as decomposers.prey on species much higher up the food chain.3. Dir Sanders' study centered on how antscan manage to thrive in huge numbers.defend their resources and territory against other predators. attack those invading animals for survival.produce such a big impact on the environment.4. What does paragraph 6 tell us?Ants bring about a negative influence to an area when their population is small.Ants bring about a positive influence to an area when their population is small.Ants' predation counteracts the positive influence they may have on an area.At higher density, ants produce a positive influence on an area.5. What still remains unclear about ants, according to the last paragraph?What roles do ants play in the ecosystem in which they live? How do ants affect the animal diversity in a given ecosystem? How do human activities affect ants' influence on a given ecosystem?How do ants alter the physical and chemical environment?In a finding that may speed efforts to conserve oil……1．Which of the following is closest in meaning to the word "sparked" appearing in paragraph 2?flashed stimulated changed ended2．The term "a bell shaped curve" appearing in paragraph 2 indicates that global oil production willtake the shape of a flat curve．B keep growing．keep declining.start to decline after global oil production peaks.3.Which of the following is NOT true of the Hubbert model?It successfully predicted that oil production peaked in the U．S．in l 970．It has been used to predict oil production in many countries．It is insufficient to explain oil production cycles in some countries．It provides a very realistic and accurate oil production. 4．What is the major achievement of the new study mentioned in the last paragraph?It predicts global oil production will peak in 2014.It predicts oil production will decline in 47 countries.It confirms further the effectiveness of the Hubbert model.It discovers a new trend of Worldwide oil production.5. Who develop the new version of the Hubbert model? American scientists.Kuwaiti scientists．British scientists.Scientists of 47 major oil-producing countries.What do chicken pox……1．According to the first paragraph，people try tokill microorganisms related to chicken pox，the flu，etc．keep themselves away from viruses because they are invisible．stay away from viruses because they are causes of various diseases.cure themselves of virus—related diseases by taking medicines．2 What is Belcher's team doing at present?It is finding ways to get rid of viruses．It is mass—producing microbatteries．It is making batteries with viruses．It is analyzing virus genes．3 What expression below is opposite in meaning to the word "shrink" appearing in paragraph 5？Broaden Spread Extend Expand4. Which of the following is true of Belcher's battery mentioned in paragraph 6？It is made of metalIt is a kind of watch battery．It can only be seen with a microscopeIt is a metallic disk with viruses inside it．5. How tiny is one battery part?Its width is one tenth of a hairIt equals the width of a hairIt is as thin as a piece of paperIts width is too tiny to measureInvisibility cloaks would have remained……1．What is true for metamaterials?They will always remain in science fictionThey are already a realityThey are nonexistent in natureScientists begin to use them to build invisible cloaks2．A hyperlens is a more powerful tool than a traditional lens as it can allow scientists to see small thingsas it can help photographers to capture images far awayeven if it is made of ordinary materialsas it can help scientists to see even the wavelengths of visible light3．Scientists at the Polytechnic University of Valencia try to inventan acoustic cloak that can shuffle waves of lightan invisible cloak that can shuffle waves of soundan acoustic cloak that can shuffle waves of sounda cloak that is made of materials found in nature 4．According to Sdnchez—Dehesa,it is of great possibility to build an acoustic cloak soon．it is possible to build an acoustic cloak in theory but far from reality．it is totally impossible to build an acoustic cloak.it is theoretically impractical to build an acoustic cloak 5．What ways are some scientists looking into to protect the island and oil；rig from tsunamis? (Read the last paragraph Surround them with metamaterials as protective shields Stopping the tsunami with metamaterials hours before it reaches themBuilding them with larger metamaterials to keep away tsunamis Using the equipment made of metamaterials to forecast arrival of a tsunamiThe Ford motor company's1 abandonment ……They have given up producing electric cars.will not be the main transportation vehicles in the future. Toyota and Nissan.run more miles than petrol driven cars.The legislation will allow more low-emission lo be produced. Understanding how nature responds to climate …….to collect data of the life cycle of living things.To send their research observations to a professional database.a citizen scientist.Only experts can participate in it.To investigate how plants and animals will respond as the climate changes.1.2 million road deaths worldwide occur ………They focus their research on safety and new fuels.because drivers make mistakes.Windscreens mat can help drivers to improve their vision.To call for help when me car gets jammed in the traffic.It will take some time before robotic drivers can be put to practical use.Coffee lovers beware. Having a quick "pick-me-up" …coffee is a stimulant.Caffeine halves the body's levels of sleep hormone.Different effects of caffeinated coffee and decaf on sleep. Caffeine drinkers produce less sleep hormone.we should not drink coffee after supper.Using enzymes commonly found in living cells,……When the technology of a new type of fuel cell is suitable for mass production.They had trouble keeping enzymes in fuel cells active.when the enzyme oxidizes the glucose from a sugary liquid that goes through a pocket.Their limited power generation capacity is a good beginning.It will take some time before die new fuel cells can be used in popular products.Some 300 meters up, near the Eiffel Tower's……..Tourists of all nationalities come to scribble on the cold iron of the tower.Visitors prefer wasting time scribbling to enjoying the view. He climbed 747 steps up the tower in 19 minutes and 4 seconds. Conducting research in various fields.Visitors can imagine freely what the tower represents.Even ancient Egypt's mighty pyramid builders were……Because even they were unable to rescue their civilisation. Change of climate.The White Nile and the Blue Nile are branches of the River Nile.immediately after a period of drought."damaging".Young female chimps are faster and better learners……Because young female chimps begin to study their mothers earlier.Vegetation.Females could get out more termites with every dip.It will make them good fighters and hunters in the future. Adult chimps hunt monkeys while young chimps fish for termites.Companies are paying up to SI0,000 to register domain……the company Network Solutions.the US government.a registrar.It must pay up to $10,000 or a nonrefundable deposit.The registration fee for a domain name on the Internet.In January, 2003, the eastern two-thirds of the United…….The temperature in the United States except the South dropped below the freezing mark.Parts of interior South Florida.he was caught by the sudden cold.' wanted to encourage trucks to transport as much fruit lo market as possible.Florida Citrus Mutual sprayed trees with sprinklers for citrus growers.Scientists can't yet make an invisibility cloak1 like the ……try to invent a device similar in idea to the invisible cloak he uses.Their wavelengths are longer than those of visible light. Microwaves bounce off it when they strike it.disk or plate placed under a drinking glass to protect a table top. die cloaking device works only for microwaves.A concept car developed by Japanese company ……It has sensors locked up in the ignition system.breathalyzer attached to a car's seat belt,It monitors the driver's eyes to see if he needs a rest.Nissan aims to improve the detection technology to reduce the fatality rate.The car will automatically keep to its lane.Learning how to fly took nature millions of years…….The two professors of CUT programmed the data on how the robot flapped its wings.It twitched but gradually gained height.The winged robot could never really fly.A movement detector.All the above.In what resembles a journey to the center……erupted in 1991.predicting volcano eruptions.Because Japan has many living volcanoabout half way up the mountain.drill a hole into the core of a volcano.Even with the best will1 in the world, reducing….despite the difficulty, scientists have some options to prevent global warming.think the problem has been solved.Methadone is an effective way to treat a hard heroin addict.To apply sunscreen to the Earth.It decreases greenhouse gases in the atmosphere.Worldwide every day, we devour the energy equivalent ……Oil supply is decreasing.Coal is the most environmentally unfriendly fuel next to oil. The United States.There will soon be an energy crisis.The sea level will go up.Prolonging human life has increased the size of the…….a decrease in death rates.infants could be left dead in times of starvation.Many of them have a very hard life.the need to take care of a sick and weak person.Critical.Oceans cover more than two-thirds of our planet….A submersible.It can carry explorers as deep as 6,500 meters.the ocean. Shape.Both A and B.Scientists have been studying natural sources of ……..It was produced in oxygen-free environments.an environment with the same concentration of oxygen as the Earth has.The higher the temperature, the greater the amount of methane emissions.Microbes in plants produce methane.Less methane reaches the atmosphere.You've probably heard that no two snowflakes are……No two snowflakes are exactly the same in shape.They are six-sided.Humidity and temperature.admires the beauty of the snowflakes.create snowflakes that are exactly alike.The graceful wooden windmills that have broken up ……Wooden shoes and wooden windmills.It is a high-tech machine designed to generate energy for urban people.can be carried up to the rooftop without a crane.the Netherlands is a small country with a large population. Both A and C.Coal burning deep underground in China, India and ……poisonous elements released by the underground fires can pollute water sources.Coal heats up on its own and catches fire and burns.Coal fires can have an impact on the environment.He has detected and monitored underground fires in the Netherlands. ',Cutting off the oxygen supply.A meager diet may give you health and long life, …….We have to begin dieting since childhood.To illustrate the effect of meager food on mice.They are more likely to suffer from inflammation.The mice that started dieting in old age.dieting is not a good method to give us health and long life. Male pilots flying general aviation (private) aircraft in….. Gender difference in relation to types of aircraft crashes.Only mature pilots are studied to determine the gender differences in the reasons for aircraft crash,They studied the findings of several previous research projects. Loss of control on landing or takeoff and stalling.male pilots are found to make more errors in decision-making. Joe Coyne slides into the driver's seat, starts up the car ……Coyne is not really driving so it is impossible for him to have hit the woman.All of the above.In challenging driving situations, drivers do not have any additional mental energy to deal with something else.want to determine the best ways of giving navigational information system.Men prefer more general directions and women prefer route directions.To sleep. Perchance to file"? Findings published …….. Docs brain arrange memories in useful order during sleep? Somatosensory neocortex and hippocampus work together in memory consolidation.The poorer the memory, the poorer glucose tolerance.The more hippocampus shrinks, the poorer one's memory.To control glucose levels.Experiments under way in several labs aim to create …….. GM foods may bring about great benefits to humans.It is cited to show GM foods also have a dark side.They may have a higher ability to adapt to the environment. The United States has not banned GM foods.We cannot tell from the passage.In the digital realm, the next big advance will …….are in its initial stage of development.machines can be our agents as they understand our thoughts.It motivates the development of the digital world.All of the above.In a personalized market, products are tailored toeachconsumer.A hurricane is a fiercely powerful, rotating form of tropical ……A calm central region of low pressure between 12 to 60 miles in diameter.The tropical waters are warm and calm.To supply the motive force or power and cause to function. Low pressureThe humanitarian crisis is as serious as that of the great depression.A team of researchers in California has developed a ……Neurons in the brain.f MRI helps scientists to discover how the brain develops intelligently."marking the parts of the brain that arc processing information" Two volunteers.Your Thoughts Can Be Scanned.The withdrawal of Nevada's…Canceling.should be approved by local people and states.The decision by Congress was accepted by local communities. Efforts should be made to develop nuclear disposal sites to suit the circumstances of the region.Waste disposal sites are located close to reactors and in places suitable for the regional circumstances.Using die power of the sun is nothing new. ……Plants have been using solar energy for billions of years.. Because they want green plants lo become a new source of energy.When there is no oxygen in the air.It is too slow for algae to produce hydrogen when the sulfate is removed.They are cheap to eat.6. Why do some scientists study how plants convert sunlight carbon dioxide and water into sugars and starches?Because they want green plants to become a new source of energy.A device that provides early warning of a landslide ……Landslides.All of the above.Because the common methods can cause false alarms.It is filled in with gravel.Evidences.In what may be bad news for bars and pubs, ……. who drink alcohol outside of meals.It increases by 20 percent the possibility of cancer in all sites.3 drinks.Laryngeal cancer.reduces the risk of laryngeal cancer.Factory fanning could soon enter a new era of mass ….. Cloned chickens are bulk-produced with the same growth rate, weight and taste.The US's National Institute of Science and Technology. chickens could grow to the same weight but with less feed. Origen has joined hands with Embrex in producing cell-injecting machines.farmers can order certain strains of chicken only.Scientists watched closely last spring as a haze of …..of desert dust and hydrocarbons.heir ability to reflect light is much stronger.She collected samples of pollutants on the Northwest coast for further tests.The two research teams whose Findings Price correlates hers with are based in Asia.Pollutants coming from Europe are not the main source of pollution in North America.Oil and gas will run out too fast for doomsday……..Oil and gas will run out so fast that Earth's doomsday will never materialize.cut C02 emissions.3，500 billion by a growing number of scientists.He thinks that IPCC's estimates are more optimistic than the Swedes.A switch to burning coal would produce disastrous environmental problems.Today petroleum provides around 40% of the world's …..A and B.is the largest of all the hydroelectric dams in the world. Norway.All of the above.are renewable so sustainable.There are several different methods that can be used …….. Imagination of the forecaster.if weather conditions do not change much.the weather features need to be constant for a long period of lime.Both climatology method and analog method.when the current weather scenario differs from the analog. Judith S. Weis, a biology professor who serves as ……. School boards oppose AIBS's effort to defend the theory of evolution.Darwin's theory is denied as the central theory of biology. more than 80 societies and 250,000 members.is fundamental to the development of modern genetics, molecular biology and genomics.Because the term creationism is too direct.Invisibility cloaks' would have remained ……They are nonexistent in nature.as it can help scientists to see even the wavelengths of visible light.an acoustic cloak that can shuffle waves of sound.it is possible to build an acoustic cloak in theory but far fromreality.Surround them with metamaterials as protective shields.A male zebra finch1 chirps away to himself. Suddently……Male zebra finches change their songs in female zebra finches' presence.Female finches liked songs male finches sang for them.Songs sung by male finches for female finches.Male zebra finches sing to themselves.Birdsongs as communication.Cryptic species — animals that appear identical but are ….. The results of the research can help our understanding of "survival of the fittest. "Both B and C.Not yet.They are two genetically distant species.identified only one mosquito species instead of six species. NASA scientists said that Mars was covered once by ……. Water in a soil sample.The samples got stuck inside the scoop.Scientists have been trying to break the ice-rich layers of soil on Mars.They are from both America and Canada.It imitates human vision and is able to capture three-dimensional images.Cell phones are a danger on the road in more ways ….. both A and C.Before the number of cell phone users reached a critical mass The number of traffic deaths was reduced in the late 1980s and part of the 1990s due to cell phone use.It had a life-taking effect because there weren't enough cell phones in use then .The number of cell phone users reached about 100 million. 2012理工完形填空第三篇Germs on BanknotesPeople in different countries use different types of money : yuan in China, pesos in Mexico, pounds in the United Kingdom, dollars in the United States, Australia and New Zealand. They may use different currencies, but these countries, and probably all countries, still have one thing in common: Germs on the banknotes.Scientists have been studying the germs on money for well over100 years. At the turn of the 20th century, some researchers began to suspect that germs living on money could spread disease.Most studies of germy money have looked at the germs on the currency within one country. In a new study, Frank Vriesekoop and other researchers compared the germ populations found on bills of different countriesVriesekoop is a microbiologist at the University of Ballarat in Australia. He led the study, which compared the germ populations found on money gathered from 10 nations. The scientists studied 1,280 banknotes in total; all came from places where people buy food, like supermarkets street vendors and cafes, because those businesses often rely on cash.Overall, the Australian dollars hosted the fewest live bacteria----no more than 10 per square centimeter. Chinese yuan had the most ---- about 100 per square centimeter. Most of the germs on money probably would not cause harm.What we call “paper” money usually isn't made from paper. The U. S. dollar, for example, is printed on fabric that is mostly cotton .Different countries may use different materials to print their money. Some of the currencies studied by Vriesekoop and his team such as the American dollar were made from cotton. Others were made from polymers.The three currencies with the lowest numbers of bacteria were all printed on polymers. They included the Australian dollar, the New Zealand dollar and some Mexican pesos.The other currencies were printed on fabric made mostly of cotton. Fewer germs lived on the polymer notes. This connection suggests that germs have a harder time staying alive on polymer surfaces. Scientists need to do more studies to understand how germs live on money-----and whether or not we need to be concerned. Vnesekoop is now starting a study that will compare the amounts of time bacteria can stay alive on different types of bills.Whatever Vriesekoop finds, the fact remains: Paper money harbors germs We should wash our hands after touching it; after all, you never know where your money’s been. Or what's living on it第十篇 Chicken Soup for the Soul：Comfort Food Fights LonelinessMashed potatoes, macaroni and cheese, may be bad for your arteries， but according to a study in Psychological Science, they’re good for your heart and emotions．The study focuses on “comfort food” and how it makes people feel．"For me personally, food has always played a big role in my family,” says Jordan Troisi, a graduate student at the University of Buffalo, and lead author on the study．The study came out of the research program of his co—author Shira Gabriel．It has looked at non-human things that may affect human emotions．Some people reduce loneliness by bonding with their favorite TV show, building virtual relationships with a pop song singer or looking at pictures of loved ones．Troisi and Gabriel wondered if comfort food could have the same effect by making people think of their nearest and dearest.In one experiment, in order to make participants feel lonely, the researchers had them write for six minutes about a fight with someone close to them. Others were given an emotionally neutral writing assignment. Then , some people in each group wrote about the experience of eating a comfort food and others wrote about eating a new food．Finally, the researchers had participants complete questions about their levels of loneliness．Writing about a fight with a close person made people feel lonely．But people who were generally secure in their relationships would feel less lonely by writing about a comfort food．"We have found that comfort foods are consistently associated with those close to us." says Troisi．"Thinking about or consuming these foods later then serves as a reminder of those close others." In their essays on comfort food, many people wrote about the experience of eating food with family and friends.In another experiment, eating chicken soup in the lab made people think more about relationships, but only if they considered chicken soup to be a comfort food. This was a question they had been asked long before the experiment, along with many other questions, so they wouldn’t remember it.。
英语六级阅读理解真题卷及答案-1
英语六级阅读理解真题卷及答案-1因考试政策、内容不断变化与调整，下面是给大家提供的阅读理解范文供参考，以下是小编给大家整理的英语六级阅读理解真题卷及答案-1，希望可以帮到大家Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.In the past 12 months,Nigeria has suffered from a shrinking economy, a sliding currency, and a prolonged fuel shortage. Now, Africa’s largest in facing a food crisis as major tomato fields have been destroyed by an insect,leading to a nationwide shortage and escalating prices.The insect, Tutaabsoluta, has destroyed 80% of farms in Kaduna, Nigeria's largest tomato producing state, leading the government there to declare a state of26 .The insect, also known as the tomato leaf miner, devastates crops by 27 on fruits and digging into and moving through stalks.It 28 incredibly quickly,breeding up to 12 generations per year if conditions are favorable. it is believed to have 29 in South America in the early 1900s, and later spread to Europe before crossing over to sub-Saharan Africa.In Nigeria, where tomatoes are a staple of local diets,the insect's effects are devastating. Retail prices for a 30 of tomatoes at localmarkets have risen from $0. 50 to $2.50. Farmers are reporting steep losses and a new $20 million tomato-paste factory has 31 production due to the shortages.Given the moth's ability also to attack crops like pepper and potatoes, Audu Ogbeh, Nigeria's minister of agriculture, has warned that the pest may"create serious problems for food 32 "in the country.Ogbeh says experts are investigating how to control the pest’s damage and prevent its spread, which has gone largely 33 until now.Despite being the continent's second-largest producer of tomatoes, Nigeria is 34 on $1 billion worth of tomato-paste imports every year.as around 75% of the local harvest goes to waste thanks to a lack of proper storage facilities. A further 35 in local supplies is yet another unwelcome setback to the industry.A) dependent I)originatedB) Embarking J) reductionC) emergenc K) reproducesD) feeding L)securityE) grazes M)terrorF) halted N) uncheckedG) handful O)uncheckedH) multitudeSection BDirections: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.who's really addicting you to Technology?A."Nearly everyone i know is addicted in some measure to the internet, "wrote tony Schwartz in The New York Times. it's a common complaint these days. A steady stream of similar headlines accuse the net and its offspring apps, social media sites and online games of addicting us to distractionB. There's little doubt that nearly everyone who comes in contact with the net has difficulty concentration than it takes to post a status update. as one person ironically put it in the comments section of Schwartz's online article, "As I was reading this very excellent article.I stopped at least half a dozen times to cheek my email.C.There's something different about this technology: it is both invasive and persuasive. but who's at fault for its overuse? To find solutions, it's important to understand what we’re dealing with.There are four parties conspiring to keep you connected the tech, your boss, your friends and you.D.The technologies themselves and their makers, are the easiest suspects to blame for our diminishing attention spans. Nicholas Carr,author of The Shallows： what the internet is doing Our brains, wrote, The net is designed to be an interruption system, a machine geared to dividing attention.E.Online services like Facebook, twitter and the like, are called out of manipula-tion--making，products so good that people can't stop using them. after studying these products for several years, I wrote a book about how they do it. I learned it all starts with the business model. since these services rely on advertising revenue, The more frequently you use money they make.It’s no winder these companies employ teams of people focused on engineering their services to be as engaging as possible. these products aren't habit-forming by chance; it's by design. they have an incentive to keep us hooked.F.However, as good as these services are, there are simple steps wecan take to keep them at bay.For example, we can change how often we receive the distracting notifications that trigger our urge to check.According to adam marchick, ceo of mobile marketing company kahuna, less than 15 percent of smartphone users ever bother to adjust their notification setlings--meaning the remaining 85 percent of us default to the app makers' every preset trigger.Google and Apple have made it far too difficult to adjust these settings so it's up to us to take steps ensure we set these triggers to suit our own needs, not the needs of the app makers.G.While companies like Facebook harvest attention to generate revenue from advertisers, other technologies have no such agenda. take email, for example. this system couldn't care less how often you use it. Yet to many, email is the most habit-forming medium of all.We check email at all hours of the day--we're obsessed, but why? Because that's what the boss wants.For almost all white-collar jobs, A slowResponse to a message could hurt not only your reputation but also your livelihood.H.Your friends are also responsible.Think about this familiar scene.People gathered around a table, enjoying food and each others company. there's laughter and a bit of kidding. Then, during an interval in the conversation, someone takes out their phone to check who knows what.Barely anyone notices and no one says a thing.I.Now imagine the same dinner,but instead of checking their phone, the person belches(打嗝)-loudly.Everyone notices. unless the meal takes place in a beer house, this is considered bad manners. The impolite act violates the basic rules of etiquette. one has to wonder why don’t we apply the same social norms to checking phones during meals, meetings and conversations as we do to other antisocial behaviors somehow, we accept it and say nothing when someone offends.J.The reality is taking one's phone out at the wrong time is worsethan belching because, unlike other minor offense, checking tech is contagious. once one person looks at their phone,other people feel compelled to do the same, starting a chain reaction. the more people are on their phones, the fewer people are talking until finally you are the only one left not reading email or checking twitter. from a societal perspective, phone checking is less like belching in public and more like another bad habit. our phones are like cigarettes-something to do when were bored or when our fingers need something to toy with seeing others enjoy a smoke,or sneak a quick glance, is too tempting to resist and soon everyone is doing it.K.The technology, your boss, and your friends, all influence how often you find yourself using (or overusing )these gadgets. but there's still someone who deserves scrutiny--the person holding the phone.L. I have a confession. even though i study habit-forming technology for a living, disconnecting is not easy for me.I'm online far more than I'd like like Schwartz and so many others, I often find myself distracted and off tack.I wanted to know why so i began self-monitoring to try to understand my behavior. that's when i discovered an uncomfortable truth.i use technology as an escape. when I'm doing something I'd rather not do, or when I'm someplace I'd rather not attention was often a good thing, like when passing time on public transportation, but frequently my tech use was not so benign. when i faced difficult work, like thinking through an article idea or editing the same draft for the hundredth time, for example, a more sinister screen would draw me in. i could easily escape discomfort.temporarlly.by answering email or browsing ing the web under the pretense of so-called"research. "though I desperately wanted to lay blame elsewhere, i finally had to admit that my bad habits had less to do with new-age.technology and more to do with old-fashioned procrastination(拖延)M.it's easy to blame technology for being so distracting, but distraction is nothing new. Aristotle and Socrates dehated nature of “akrasia”--our tendency to do things agninst our interests. If we're honest with ourselves, tech is just another way to occupy our time and minds,if we weren’t on our devices. We’d likely do similarly unproductive.N.personal technology is indeed more engaging than ever, and there's no doubt companies are engineering their products and services to be more compelling and attractive but would want it any other way the intended result of making something better is that people use it more. that's not necessarily a problem, that's progress.O.These improvements don't mean we shouldn't attempt to control our use of technology. In order to make sure it doesn't control us, we should come to terms with the fact that it's more than the technology itself that’s responsible for our habits. our workplace culture, social norns and individual behaviors all play a part to put technology in its place, we must be conscious not only of how technology is changing, but also of how it is changing us.36.Online services are so designed that the more they are used, the more profit they generate.37. The author admits using technology as an escape from the task at hand.38. Checking phones at dinners is now accepted as normal but not belching39. To make proper use of technology, we should not only increase our awareness of how it is changing but also how it is impacting us.40. Most of us find it hard to focus on our immediate tasks because of internet distractions41. when one person starts checking their phone, the others will follow suit.42.The great majority of smartphone users don' t take the trouble to adjust their settings to suit their own purposes.43.The internet is regarded by some as designed to distract our attention.44. The author attributes his tech addiction chiefly to his habit of putting off doing what he should45.White-collar workers check email round the clock because it is required by their employers。
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Advance in Forestry ResearchFebruary 2013, V olume 1, Issue 1, PP.17-21 Study on the Producing Technology of the Original Structure Bamboo Composite Board Wooden TableChuan He#, Jiyuan WangSchool of Materials Science and Technology, Beijing Forestry University, Beijing 10083, ChinaEmail: hechuan1112@AbstractThe test is based on the production of the original bamboo structure composite board. Through design of wooden tables’ structure and in accordance with the principle of original bamboo structure composite board production, product the original bamboo structure composite board wooden table with the excellent original bamboo structure. Explore the production process of the original bamboo structural composite board wooden tables. Measure the physical and mechanical properties of the wooden table. Provide a theoretical basis for the application of the original bamboo structure composite board in the production of wooden tables.Keywords: Bamboo; Wooden Table; Composite Board1 M ATERIAL AND METHODMaterial. Pinewood, medium density fiberboard impregnated paper, polyethylene of vinyl acetateEquipment. Chopper, hand saw, planer, sliding table saws, pressing machine, roller brush, steel tape measure, calipers, feeler gauge, steel ruler, electronic scales, sandpaper, gas nail gun, the flatness of the detector.Method. Production process of the original bamboo structure composite board wooden tables: raw material drying (natural drying) → bamboo segment processing → assembly → sizing (polyethylene of vinyl acetate) → pressure (cold press) → cutting edge → table parts preparation → structure design → table assembly → wooden table.2 P ROCESSBamboo grading. Refer to Bambus a rigida and the original structure bamboo composite board’s physical and mechanical performance. So choose a diameter of 30mm-40mm bamboo as the raw materials. And cut bamboo into segments which size is 300mm, 400mm, 500mm, 600mm, and 700mm.Drying. Place the bamboo under the open air to dry naturally. Natural drying needs a small investment that is an energy-saving method of drying. In the area of Beijing, it’s about two months the bamboo can be dried to equilibrium moisture content.Preparation of table parts. Wooden frame (520×30×26×2,1000×30×26×2)(mm), under wooden stretchers (500×50×20×2,960×50×20×2)(mm) and table legs (720×50×40×4)(mm) select pinewood. The cladding material (1000×580×32×2) (mm)and upper wooden stretchers (620×100×15×2,1000×100×15×2) (mm)select medium density fiberboard.Bamboo segment Preparation. Process the dried bamboo segments with chopper two. Split symmetry plane should to select bamboo segment through two vertical planes of the face the chopping. The complete symmetry plane Chopping planer bamboo paragraph one plane of symmetry as the reference plane, another plane of symmetry with the sliding table saw thickset processing.The assemble patterns and sizing. Firstly put one medium density fiberboard in the horizontal plane. According to curvature and length of each bamboo segments, arrange the wooden frame and bamboo segments seasonally inanother plane, which can minimize the gaps between each rows of the bamboo segments. After the arrangement, put the glued bamboo segments on the fiberboard in the horizontal plane in order. When all the segments are put on the fiberboard, then glue another fiberboard and put the fiberboard on the top of the bamboo segments. The assemble patterns is shown in figure 1.FIG. 1 ASSEMBLE PATTERNSCold pressing and trimming. According to the hot-pressing process of original structure bamboo composite board, the cold pressing pressure, time and temperature is 20 t, 12h, and 25°C separately. Cutting edges with sliding table saw after the cold pressing. The finished product is shown in Figure 2.Structural design. According to international standards GB/T 3326-1997 and reference to industry standard QB/T 2384-2010, design the original bamboo structure composite board wooden tables. Since the hollow structure of the original bamboo structural composite board, make the surrounded wooden frame of the composite board connect with fiberboard stretchers, fiberboard stretchers connect with the pinewood table legs. Based on the consideration of the overall stability of wooden tables, add pinewood stretchers around the leg of the table. Overall structural design, assembly and finished product are shown in Figure 3, 4, separately.FIG.2 ORIGINAL BAMBOO STRUCTURE COMPOSITE BOARDFIG.3 STUCTURE AND ASSEMBLY OF THE ORIGINAL BAMBOO STRUCTRAL COMPOSITEBOARD WOODEN TABLEFIG.4 THE ORIGINAL BAMBOO STRUCTRAL COMPOSITE BOARD WOODEN TABLEPhysical and mechanical properties testing. Reference to international standards GB/T 10357.7-1995, GB/T 3324–1995 and GB/T 10357.1-89, tests the physical and mechanical performance of the wooden table. Measurement items include: vertical and horizontal load stability, warp age, flatness, and adjacent side verticality foot to stability, the main dimensions, wood moisture content, vertical static load test, desktop sustained static load test, and table legs fall trial.3R ESULTS AND D ISCUSSIONSMain dimensions. The length, width, height and diagonal of the wooden table was 1035mm, 618mm, 752mm, 1223mm, separately. Shown as table 2.Moisture content. Bamboo average moisture content was 12.2% and the average moisture content of the white pine was 9.2%. Shown as table 3.Flatness. The flatness was 0.05-0.15mm in the range of 0mm-150mm desktop, which was less than the requirements of the standard (0.20mm).Warping degree. Measured the overall flatness of the desktop with a feeler and the flatness was 0.6-1.2mm, which was less than the requirements of the standard (2mm). Shown as table 1.The adjacent side verticality. Measured two diagonal of the desktop and the difference was the adjacent sides vertical.Two diagonal sizes were respectively 1222.6mm and 1224.2mm and the difference of 1.6mm, which was less than the requirements of the standard. Shown as table 2.TABLE 1 SHSPE AND POSITION TOLERANCES OF THE WOODEN TABLEFoot ground stationarity. Measure the distance between table foot and the plane with a feeler. And the distance is 0.8mm. Shown as table 1.Vertical load stability. Put the table on a level surface. Apply a force of 600N vertically downward on the desktop away from the edge inward 50mm at the center of the most unstable table edge. Shown as table 4.Vertical static loading test. Apply a force of 800N on the desktop center vertically downward and applied 10 times repeatedly that maintains 10s each time. Measure the maximum deflection of the desktop at the end of the test. Deflection is 3.3mm. Shown as table 4.Desktop sustained static load test. Apply a force of 900N on the desktop seven days. Measure the deflection before loading and after loading 7 days. The deflection is 1.2mm and 4.1mm, separately. Shown as table 4.Table leg drop test. Raised any end of one table leg to a height of 200mm and made a free fall 10 times.Table leg drop test, desktop sustained static load test, vertical static load test and vertical load stability test, after the end of the test; check the overall structure of the table, according to the standard defects for assessment. The evaluation results were as follows:No parts broken or exclusions cra ck phenomenon; didn’t have permanent loose solid parts; all components didn’tappear seriously wear or deformation; no obvious loose hardware connector.4 C ONCLUSIONS(1) Production process of the original bamboo structure composite board wooden tables: raw material drying (natural drying) → bamboo segment processing → assembly → sizing (polyethylene of vinyl acetate) → pressure (cold press) → cutting edge → table parts preparation → structure design → table assembly → wooden table .(2) The size deviation of the original bamboo structure of wooden tables is small. The shape and position tolerances are in line with the standard requirements of the wooden table. The overall structural of wooden tables is stable and has good strength and affordability that can be used as a moderate load use.ACKNOWLEDGMENTThe author would like to thank his teachers from and support of Beijing Forest University, School of Materials Science and Technology.REFERENCES[1] Leifeng Zhao. Production of Bamboo Primordial Structure Composite Board and Its Economic Benefit Analysis, China ForestProducts Industry, V ol.28, No.5, (2011): 46-49[2] Chuan He, Yu Liu: A Study of Physical-Mechanical Properties of Bambusa rigida Keng, World Banboo and Rattan, V ol.10, No.3,(2012): 19-21[3] Chuan He, Yu Liu: A Study on Physico-mechanical Properties of Original Bamboo Structure Composite Boards, Wood ProcessingMachinery, V ol.23, No.5, (2012): 43-45[4] Chuan He, Jiyuan Wang: Structural Characteristics of A New Original Bamboo Structure Composite Boards, Advanced MaterialsResearch, V ol.476-478, (2012): 2109-211[5] Test of mechanical properties of furniture-Stability of tables, Chinese, Standard, GB/T 10357.7, (1995) [6] Wooden furniture-General technical requirement, Chinese, Standard, GB/T 3324, (1995)[7] Test of mechanical properties of furniture-Strength and durability of table, Chinese, Standard, GB/T 10357.1, (1989) [8] Wooden desk, Chinese, Standard, QB/T 2384-2010, (2010)A UTHORSChuan He, born in Beijing, China, 12th Nov, 1987. Studying in School of Materials Science andTechnology,Beijing Forestry University, China, for master degree. The major field of research is wood processing equipment and the process automation.Jiyuan Wang, born in Beijing, China, 1th Mar, 1988. Studying in School of Materials Science and Technology, Beijing Forestry University, China, for master degree. The major field of research is furniture and interior decoration engineering.。