2022年职称英语考试《理工类》考试共65题，分为单选题和多选题和判断题和计算题和简答题和不定项。小编每天为您准备了5道每日一练题目（附答案解析），一步一步陪你备考，每一次练习的成功，都会淋漓尽致的反映在分数上。一起加油前行。

1、AirbusDespite bulging ｏｒｃｅｒbooks, the mood at Airbus ａｎｄ　Boeing is far from celebratory. Both aviation giants are moaning loudly that their production systems ａｎｄ　supply chains are flawed, albeit fｏｒostensibly different reasons. This week Louis Gallois, the boss of EADS, the Franco-German aerospace consortium that owns Airbus, added substance to warnings a week earlier by the planemaker’s chief executive, Tom Enders, that the dollar\'s decline was "life-threatening" fｏｒthe firm. Mr. Gallois said it was no longer just a possibility that Airbus would have to move a large part of its production to "the dollar zone" ｏｒlow-cost countries, but a certainty.Airbus is already in the middle of Power 8, a big restructuring plan that involves the loss of 10,000 jobs ａｎｄ　the sale of several plants, which is meant to offｓｅｔthe losses caused by the delays in delivering the A380 superjumbo. But Power 8 assumed that a euro was worth $ 1.35, not today\'s $ 1.47. Mr. Gallois estimates that each 10-cent rise in the euro costs Airbus 1 billion. At present, Airbus makes 76% of its purchases within Europe, but generates over 60% of its sales elsewhere. It must now shift some production abroad.Airbus is now likely to forge ahead much further. Mr. Gallois suggests that when the A350 enters service in 2013, 70% of it will have been "purchased" in dollars, against 50% fｏｒthe A380 ａｎｄ　an average 24% of Airbus production today. Because Airbus insists that some of its European suppliers price in dollars that means about 50% of the A350\'s production will be outsourced. New aircraft, such as the A320\'s successor, may be made almost entirely outside the euro-zone.Airbus maintains that exchange rates are not the only reason fｏｒoutsourcing: it is keen to tap into composite-manufacturing expertise wherever it exists. It also insists that it will not repeat the mistakes Boeing has made with its new 787 Dreamliner, about 80% of which has been outsourced. A few weeks ago Mike Bair, the executive responsible fｏｒthe 787 programme, who was recently moved sideways after mounting production delays, launched a withering attack on some of the companies recruited to build the plane. He said that in future Boeing would not entrust design work to partners who "proved incapable of doing it", ａｎｄ　would make suppliers build factories close to Boeing\'s main assembly operation, rather than flying semi-finished sections of the aircraft round the world on huge Dreamlifter transporters.It is too early to conclude that the two rivals are heading in opposite directions- Boeing renouncing the global supply chain just as Airbus adopts it. Each company has its own axe to grind. Airbus needs greater flexibility, ａｎｄ　the weak dollar provides helpful cover as it takes on its grumbling unions. Boeing, fｏｒits part, wants to shift the blame fｏｒdelays to the 787 on to its partners. The logic of global outsourcing in the aerospace industry remains powerful. Whatever they may be saying now. Airbus ａｎｄ　Boeing are more likely to converge than to diverge.Why Airbus ａｎｄ　Boeing are more likely to converge than to diverge?【单选题】

A.Boeing quits the global supply chain while Airbus adopts it.

B.Both of them need to adopt greater flexibility in the working process.

C.Both of them need to make their foreign purchases ａｎｄ　outsourcing more skillful ａｎｄ　powerful.

D.Both of them have to take measures to deal with problems caused by weak dollar.

正确答案:C

答案解析:细节考查题。题干考查的是为什么说两个公司是向同一个方向会合而不是兵分两路。两个公司的说法虽然不同，但它们终究还是需要进行海外采购，而海外采购需要有所改进，分别都要改进灵活性并且使海外采购变得更加强大。因此向同一个方向会合而不是兵分两路是就海外采购这方面而言的，故正确答案为C。

2、Walking to Exercise the BrainDo you think sitting ａｎｄ　studying all the time will improve students grades? Think again. Getting some exercise may help, too.New research with older people suggests that taking regular walks helps them pay attention better than if they didn\'t exercise.Previous research had shown that mice learn, remember ａｎｄ　pay attention better after a few weeks of working out on a running wheel. Mice that exercise have greater blood flow to the brain than those who don\'t. Their brain cells also make more connections.Neuroscientists (神经科学家) from the University of Illinois at Urbana Champaign wanted to find out if the same thing is true fｏｒpeople. First, they measured the physical fitness of 41 adults, ages 58 to 77, after each person walked I mile. Then, participants looked at arrows on a computer screen ａｎｄ　had to use computer keys to show which way one particular arrow was pointing.Adults who were physically fit were faster at the arrow task, ａｎｄ　their answers were just as accurate as their less - fit peers, the researchers found. The fitter participants also had more blood flow to a part of their brain responsible fｏｒpaying attention ａｎｄ　making decisions.In a second study, 15 elderly people who completed a 6 - month aerobic - training (有氧运动) course were faster at attention tasks compared with 14 seniors who just did stretching ａｎｄ　toning (韵律操) exercises fｏｒthe same amount of time.So, even going fｏｒa walk every 2 ｏｒ3 days fｏｒjust 10 to 45 minutes can help. That should be good news fｏｒthe elderly.The effects of exercising on the brains of younger people haven\'t been studied yet. Still, it can\'t hurt to take occasional breaks ａｎｄ　go fｏｒa walk ｏｒrun around with friends. Whatever you do, though, don\'t try to read ａｎｄ　walk at the same time. You could end up hurting yourself!After taking exercise fｏｒa few weeks, the mice were found to have ______.【单选题】

A.higher blood pressure

B.faster heartbeat

C.more blood flow to the brain

D.better appearance

正确答案:C

答案解析:本题难度不大，找到答案依据不难。答案依据在文章第三段。带着题干信息词回到文章定位。第三段第二句谈到运动老鼠大脑中的血液流量大于不运动的，回来看选项，很明显，C是近义解释，是答案。

3、Weaving with LightIn the Sierra Madre mountain range of west central Mexico, the native Huichol people live much the way their ancestors did-without electricity. That\'s because it\'s too expensive to string power lines to the remote mountain areas where they live. To help support themselves, the Huichol create beautiful artwork. They sell their art in cities hundreds of miles away from their villages. ａｎｄ　without electricity, at home ｏｒon the road, they can only work during daylight hours. When it gets dark, they must stop whatever they\'re doing.Now, a team of scientists, designers ａｎｄ　architects is using new technologies to provide the Huichol with light after the sun sets. The scientists technique involves weaving tiny electronic crystals into fabrics that can be made into clothes, bags, ｏｒother items.By collecting the sun\'s energy during the day, these lightweight fabrics provide bright white light at night. Their inventors have named the fabrics "Portable Lights," Portable Lights have the potential to transform the lives of people without electricity around the world, says project leader Sheila Kennedy."Our invention," Kennedy says, "came from seeing how we could transform technology we saw every day in the United States ａｎｄ　move it into new markets fｏｒpeople who didn\'t have a lot of money."At the core of Portable Light technology are devices called high - brightness light - emitting diodes, ｏｒHB LEDs. These tiny lights appear in digital clocks, televisions ａｎｄ　streetlights.LEDs are completely different from the light bulbs. Most of those glass bulbs belong to a type called incandescent lights. Inside, electricity heats a metal coil to about 2,200 degrees Celsius. At that temperature, bulbs give off light we can see.Ninety percent of energy produced by incandescent lights, however, is heat ａｎｄ　invisible. With all that wasted energy, bulbs burn out quickly. They are also easily broken.LEDs, on the other hand, are like tiny pieces of rock made up of molecules that are arranged in a crystal structure. When an electric current passes through an LED, the crystal structure produces light. Unlike incandescent bulbs, they can produce light of various colors. Within an LED, the type of molecules ａｎｄ　their particular arrangement determines what colｏｒis produced.All of the following are disadvantages of incandescent lights EXCEPT that ______.【单选题】

A.they are not bright enough

B.they burn out quickly

C.they are easily broken

D.they waste most of the energy produced

正确答案:A

答案解析:本题难度较大，需要通读全文，寻找答案依据。通读全文可以发现，只有they are not bright enough是文章未提到的，答案是A。

4、Genetically Modified FoodEuropean ｕｎｉｏｎenvironmental officials have determined that two kinds of genetically modified corn could harm butterflies, affect food chains ａｎｄ　disturb life in rivers ａｎｄ　streams, ａｎｄ　they have proposed a ban on the sale of the seeds, which are made by Dupont Pioneer, Dow Agrosciences ａｎｄ　Syngenta. The preliminary decisions are circulating within the European Commission, which has the final say. Some officials there are skeptical of a ban that would upｓｅｔthe powerful biotechnology industry ａｎｄ　could exacerbate tensions with important trading partners like the United States. The seeds are not available on the European market fｏｒcultivation.In the decisions, the environment commissioner, Stavros Dimas, contends that the genetically modified corn, ｏｒmaize could affect certain butterfly species, specifically the monarch, ａｎｄ　other beneficial insects. Fｏｒinstance, research this year indicates that larvae of the monarch butterfly exposed to the genetically modified corn "behave differently than other larvae." In the decision concerning the corn seeds produced by Dow ａｎｄ　Pioneer, Mr. Dimas calls "potential damage on the environment irreversible." In the decision on Syngenta\'s corn, he says that "the level of risk generated by the cultivation of this product fｏｒthe environment is unacceptable."A decision by the European ｕｎｉｏｎto bar cultivation of the genetically modified crops would be the first of its kind in the trade bloc, ａｎｄ　would intensify the continuing battle over genetically modified corn. Banning the applications fｏｒcorn crops also would mark a bold new step fｏｒEuropean environmental authorities, who are already aggressively pursuing regulations on emissions from cars ａｎｄ　aircraft, setting it at odds with the United States ａｎｄ　angering industries."These products have been grown in the U. S. ａｎｄ　other countries fｏｒyears," said Stephen Norton, a spokesman fｏｒthe United States trade representative. "We are not aware of any other case when a product has been rejected after having been reviewed ａｎｄ　determined safe by European food safety authorities," he said.Barbara Helfferich, a spokeswoman fｏｒMr. Dimas, declined to comment on the specifics of the procedure because commissioners had not yet made a final decision. But she said that the European ｕｎｉｏｎwas within its rights to make decisions based on the "precautionary principle" even when scientists had found no definitive evidence proving products can cause harm. She said that the decisions by Mr. Dimas could go before the commission within a few weeks, but she said that no date had been set. In the decisions, Mr. Dimas cited recent research showing that consumption of genetically modified corn byproducts reduced growth ａｎｄ　increased mortality of non-target stream insects ａｎｄ　that these insects are important prey fｏｒaquatic ａｎｄ　riparian predators ａｎｄ　that this could have unexpected ecosystem-scale consequences."Although still preliminary, his decisions could drastically tilt the policy against future approvals of genetically modified crops," said Nathalie Moll, a spokeswoman fｏｒEuropabio, an industryｇｒｏｕｐwith 80 members including Syngenta, Pioneer ａｎｄ　Dow. Europabio says that the crops grown using the genetically modified corn are already imported into several European countries, including France ａｎｄ　Germany, where they are used to feed animals like cows ａｎｄ　chickens.Rob Gianfranceschi, spokesman at the United States mission to the European ｕｎｉｏｎin Brussels, said it was too early to comment on a decision that had not yet been formalized. But he made clear that the United States remained frustrated with European policies on genetically modified crops.Mr. Dimas cited many researches on the genetically modified corn in his decision in ｏｒｃｅｒto ______.【单选题】

A.dispel some officials\' doubt on his decisions

B.enhance the strength of his decision-making

C.demonstrate the latest achievement of his decision

D.assure that they can be presented before the commission with solid evidence

正确答案:B

答案解析:细节考查题。Dimas先生在其拟定的决议中多次引用了关于转基因产品的研究，其目的是证实自己的决议是有根据的，这样就更有说服力。

5、What Is the Coolest Gas in the Universe?What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was - 91℃, which occurred in Antarctica (南极洲) in 1983.We encounter an interesting situation when we discuss temperatures in space.Temperatures in Earth orbit actually range from about +120℃ to - 120℃. The temperature depends upon whether you are in direct sunlight ｏｒshade. Obviously, -120℃ is colder than our body can safely endure. Thank NASA science fｏｒwell, de signed space suits that protect astronauts from these temperature extremes.The space temperatures just discussed affect only our areal of the solar system. Obviously, it is hotter closer to the Sun ａｎｄ　colder as we travel away from the Sun. Astronomers estimate temperatures at Pluto are about - 210℃. How cold is the lowest estimated temperature in the entire universe? Again, it depends upon your location. We are taught it is supposedly impossible to have a temperature below absolute zero, which is - 273℃, at which atoms do not move. Two scientists, whose names are Cornell ａｎｄ　Wieman, have successfully cooled down a gas to a temperature barely above absolute zero. They won a Nobel Prize in Physics in 2001 fｏｒtheir work, not a discovery, in this case.Why is the two scientists\' work so important to science?In the 1920s, Satyendra Nath Bose was studying an interesting ______ about special light particles we now call photons (光子). Bose had trouble convincing other scientists to believe his theory, so he contacted Albert Einstein. Einstein\'s calculations helped him theorize that atoms would behave as Bose thought—but only at very cold temperatures.Scientists have also discovered that ultra - cold(超冷) atoms can help them make the world\'s atomic clocks even more accurate. These clocks are so accurate today they would only lose one second every six million years! Such accuracy will help us travel in space because distance is velocity times time 4 ( d = v×t). With the long distances involved in space travel, we need to know time as accurately as possible to get accurate distance.【单选题】

A.invention

B.experiment

C.theory

D.paper

正确答案:C

答案解析:本题有一定难度，考查词义辨析，干扰项有一定的干扰。根据上下文逻辑，文章此处是说“……在研究有关光子的一种有意思的理论”，答案是C。