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2025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。小编为您整理精选模拟习题10道,附答案解析,供您考前自测提升!
1、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.To the decisions, the European Commission officials\' attitudes are ______.【单选题】
A.skeptical
B.controversial
C.contradictory
D.divergent
正确答案:D
答案解析:态度题。题干考查的是欧洲委员会官员对于这些决议的态度。文中表示一些官员对禁令表示怀疑,主要害怕禁令会影响外交关系;而一些官员表示支持,可见这些官员所持的态度是有分歧的。考生可能会受到选项B的干扰,比较看来,选项D更为精确。
2、Waving 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 are 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 of flight 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. LEDs are different from light bulbs in that____. 【单选题】
A.LEDs are incandescent lights while light bulbs are not.
B.LEDs have a metal coil while light bulbs have not.
C.LEDs emit colored light while most light bulbs don\'t.
D.LEDs are made up of tiny pieces of rock while light bulbs are not.
正确答案:C
答案解析:短文第6段对light bulbs进行了描述。第2句中的those glass bulbs即指第1句中的light bulbs。因此,LEDs不是incandescent lights(白炽灯),也没有金属丝。所以A和B均是错误的。最后一段第一句“LEDs,on the other hand,are like tiny pieces of rock made up of molecules that are arranged in a crystal structure”中的“like tiny pieces of rock”不等于pieces。
3、Practically all animals communicate either through sounds orthrough soundless codes.【单选题】
A.Certainly
B.Probably
C.Almost
D.Absolutely
正确答案:C
答案解析:差不多所有动物都能或通过声音或通过无声的方式进行交流。本题有一定难度,虽然选项都是常用副词,但干扰项干扰较大。practically和almost都有“几乎,差不多”的意思,是近义阋。A项指“肯定地”,B项指“可能”,D项指“绝对地”,最佳答案是C。
4、Would you please call my husband as soon as possible?【单选题】
A.visit
B.phone
C.consult
D.invite
正确答案:B
答案解析:麻烦您尽快给我丈夫打个电话好吗?本题难度不大,考查的是引申意义,call和phone做动词用,引申意义都有“打电话”的意思,是近义词,其他选项都是常用词汇,和答案意义差异大,最佳答案是B。
5、Seeing Red Means Danger AheadThe colorred often means danger and by paying attention, accidents can be prevented. In the future, the colorred also may help prevent danger at construction sites. Thanks to new work by engineers, bridge supports orother kinds of materials could one day contain a colorswitching material. It will turn red before a structure collapses orfalls apart. The secret behind the colorswitching material is a particular type of molecule. A molecule is agroupof atoms held together by chemical bonds. Molecules come at all shapes and sizes, and make up everything. You can see, touch orfeel. How a molecule behaves depends on what kinds of atoms it contains, and how they\'re held together. When a polymer (聚合物) containing a colorswitching molecule called a mechanophore (机械响应性聚合物) which is about to break, it produce a color. When a polymer with mechanophore molecules becomes "injured" orweak, one of the mechanophore bonds breaks and the material turns red. "It\'s a really simple detection method. "says Nancy Sottos, one of the scientists who worked on the project. Sottos and her team tested the colorswitching polymers in their lab. The test results proved encouraging. There is a way to get rid of the colorlight when a bright light is shone on the mechanophore. The broken bond is fixed and the red colordisappears. This "self-healing" may be a problem forengineers. They need to use the colorchanger in big construction projects that will be outside in sunlight. and sunlight will make the mechanophore\'s warming system ______. Sottos and her fellow scientists still have a lot of work to do before the colorswitching molecules can be used outside the lab. 【单选题】
A.dangerous
B.useless
C.helpful
D.important
正确答案:B
答案解析:前后文是转折关系,前面说到是问题,又有warning system的说法,应该是使之失效的意思,选useless。
6、Things have changed a lot since I was a child.【单选题】
A.gradually
B.suddenly
C.frequently
D.greatly
正确答案:D
答案解析:从我是少年以后,事情改变了许多。本题难度也不大,干扰项干扰性不强,changed a lot,指“改变了许多”,change greatly,极大改变,因此最佳答案是D。
7、A Bad IdeaThink you can walk, drive, take phone calls, e - mail and listen to music at the same time 7 Well, New York\'s new law says you can\'t. and you\'ll be fined $ 100 if you do so on a New York city street. The law went into force last month, following research and a shocking number of accidents that involved people using electronic gadgets (小巧机械) when crossing the street.Who\'s to blame? Scientists say that our multitasking (多任务处理) abilities are limited. "We are under the impression that our brain can do more than it often can," says Rene Marois, a neuroscientist (神经科学家) in Tennessee. "But a core limitation is the inability to concentrate on two things at once."The young people are often considered the great multitaskers. _____. Agroupof 18 to 21 years old and agroupof 35 to 39 years old were given 90 seconds to translate images into numbers, using a simple code. The youngergroupdid 10 percent better when not interrupted. But when both groups were interrupted by a phone call oran instant message, the oldergroupmatched the youngergroupin speed and accuracy.It is difficult to measure the productivity lost by multitaskers. Jonathan Spira, chief analyst at Basex, a business - research firm, estimates that the cost of interruptions to the American economy is nearly $ 650 billion a year. The estimate is based on surveys with office workers. The surveys conclude that 28 percent of the workers\' time was spent on interruptions and recovery time before they returned to their main tasks.【单选题】
A.Talking on a cell phone while driving brings you joy anyway.
B.The estimate is based on surveys with office workers.
C.The youngergroupdid 10 percent better when not interrupted.
D.However, an Oxford University research suggests this perception is open to question.
E.Scientists say that our multitasking (多任务处理) abilities are limited.
F.and you\'ll be fined $ 100 if you do so on a New York city street.
正确答案:D
答案解析:本题有一定的难度。可用排除法和代入法。本题的上一句谈到了年轻人常被认为是能同时兼顾多个任务的,下一句又谈到了一项试验表明年轻人和年纪大的没有多少差别,所以可以推断此处应该表达转折的意义。回来看选项,把D代入文中,符合逻辑,答案是D。
8、Shopping at Second - hand Clothing StoresWhen 33 year old Pete Barth was in college, shopping at second hand clothing stores was just something he did- "like changing the tires on his car." He looked at his budget and decided he could save a lot of money by shopping forclothes at thrift shops."Even new clothes are fairly disposable (用后即丢掉的) and wear out after a couple of years," Barth said. "In thrift shops, you can find some great stuff whose quality is better than new clothes."Since then, Barth, who works at a Goodwill thrift shop in the US state of Florida, has found that there are all kinds of reasons forshopping forsecond - hand clothing. Some people, like him, shop to save money. Some shop fora crazy - looking shirt. and some shop as a mean conserving energy and helping the environment.Pat Akins, an accountant at a Florida Salvation Army (SA) (救世军) thrift shop, said that, forher, shopping at thrift shops is a way to help the environment."When my daughter was little, we looked at it as recycling," Akins said. "Also, why pay 30 dollars fora new coat when you can get another one fora lot less?"Akins said that the SA has shops all over the US- "some as big as department stores. All of the clothes are donated (捐赠), and when they have a surplus (盈余), they\'ll have" stuff a bag" specials, where customers can fill a grocery sack with clothes foronly 5 or10 dollars.Julia Slocum, 22, points out, however, that the huge amount of second - hand clothing in the US is the result of American wastefulness."I\'d say that second - hand stores are the result of our wasteful, materialistic culture," said Slocum, who works fora pro - conservation organization, the center of a New American Dream. "Thrift shops prevent that waste from going to landfills (垃圾填埋场). They give clothing a second life, provide cheaper clothing forthose who can\'t afford to buy new ones and generate (创造) income forcharities. They also provide a way forthe wealthy and middle classes to shed (摆脱) the guilt fortheir level of consumption.When Barth was a college student, he often shopped at thrift shops ______.【单选题】
A.to save money
B.to save energy
C.to help the environment
D.to make friends with poorpeople
正确答案:A
答案解析:本题有一定难度,需要认真阅读文章,答案依据在文章第三段。带着题干信息到文章定位,认真阅读文章第三段,第二句谈到,一些像他一样的人,为了省钱去旧货店买衣服,所以答案是A。
9、Cell Phone Lets Your Secret OutYour cell phone holds secrets about you. Besides the names and numbers that you\'ve programmed into it, traces of your DNA linger on the device, according to a new study.DNA is genetic material that appears in every cell. Like your fingerprint, your DNA is unique to you- ______ you have an identical twin. Scientists today routinely analyze DNA in blood, saliva, orhair left behind at the scene of a crime. The results often help detectives identify criminals and their victims. Your cell phone can reveal more about you than you might think.Meghan J. McFadden, a scientist at McMaster University in Hamilton, Ontario, heard about a crime in which the suspect bled onto a cell phone and later dropped the device. This made her wonder whether traces of DNA lingered on cell phones even when no blood was involved. So she and colleague Margaret Wallace of the City University of New York analyzed the flip open phones of 10 volunteers. They used swabs to collect invisible traces of the users from two parts of the phone: the outside, where the user holds it, and the speaker, which is placed at the user\'s ear.The scientists scrubbed the phones using a solution made mostly of alcohol. The aim of washing was to remove all detectable traces of DNA. The owners got their phones back foranother week. Then the researchers collected the phones and repeated the swabbing of each phone once more.The scientists discovered DNA that belonged to the phone\'s speaker on each of the phones. Better samples were collected from the outside of each phone, those swabs also picked up DNA that belonged to other people who had apparently also handled the phone. Surprisingly, DNA showed up even in swabs that were taken immediately after the phones were scrubbed. That suggests that washing won\'t remove all traces of evidence from a criminal\'s device. So cell phones can now be added to the list of clues that can clinch a crime scene investigation.【单选题】
A.because
B.unless
C.although
D.still
正确答案:B
答案解析:上文的意思是:如同指纹,你的DNA是独一无二的。因此,此处必须选择unless,其他选择均不符合句义,也违背了我们对DNA的基本常识。
10、Inventorof LEDWhen Nick Holonyak setout to create a new kind of visible lighting using semiconductoralloys, his colleagues thought he was unrealistic. Today, his discovery of light-emitting diodes, orLEDs, are used in everything from DVDs to alarm clocks to airports. Dozens of his students have continued his work, developing lighting used in traffic lights and other everyday technology. On April 23,2004, Holonyak received the $500,000 Lemelson-MIT Prize at a ceremony in Washington. This marks the lOth year that the Lemelson-MIT Program at the Massachusetts Institute of Technology (MIT) has given the award to prominent inventors. "Anytime you get an award big orlittle. It\'s always a surprise. " Holonyrak said. Holonyak, 75, was a student of john Bardeen, an inventorof the transistor, in the early 1950s. After graduate school, Holonyak worked at Ben Labs. He later went to General Electric, where he invented a switch now widely used in house dimmer switches. Later, Holonyak started looking into how semiconductors could be used to generate light. But while his colleagues were looking at how to generate invisible light, he wanted to generate visible light. The LEDS he invented in 1962 now last about 10 times longer than incandescent bulbs, and are more environmentally friendly and effective. Holonyak, now a professorof electrical and computer engineering and physics at the University of Illinois, said he suspected that LEDs would become as commonplace as they are today, but didn\'t realize how many uses they would have. "You don\'t know in the beginning. You think you\'re doing something important. You think it\'s worth doing, but you really can\'t tell what the big payoff is going to be, and when, and how. You just don\'t know, "he said. The Lemelson. MIT Program also recognized Edith Flanigen, 75, with the $100,000 Lemelson-MIT Lifetime Achievement Award forher work on a new generation of "molecular sieves", that can separate molecules by size. Edith Flanigen is the only co-inventorof LEDs.【单选题】
A.Right
B.Wrong
C.Not mentioned
正确答案:C
答案解析:题干中出现的特征词Edith Flanigen作为答案线索,发现答案相关句,内容是说Edith Flanigen对新一代的“分子筛”的研制做出了杰出的工作,但没有说她是LEDs的合作发明者。
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