2019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。小编为您整理历年真题10道，附答案解析，供您考前自测提升！

1、Why Would They Falsely Confess?
Why on earth would an innocent person falsely confess to committing a crime? To most people, it just doesn't seem logical. But it is logical, say experts, if you understand what can happen in a police interrogation room.
Under the right conditions, people's minds are susceptible to influence, and the pressure put on suspects during police grilling is enormous. ______ "The pressure is important to understand, because otherwise it's impossible to understand why someone would say he did something he didn't do. The answer is: to put an end to an uncomfortable situation that will continue until he does confess."
Developmental psychologist Allison Redlich recently conducted a laboratory study to determine how likely people are to confess to things they didn't do. In her experiment, participants were seated at computers and told not to hit the "alt" key, because doing so would crash the systems. The researchers then intentionally crashed the computers and accused the participants of hitting the "alt" key to see if they would sign a statement falsely taking responsibility.
Redlich's findings clearly demonstrate how easy it can be to get people to falsely confess: 59 percent of the young adults in the experiment immediately confessed. Redlich also found that the younger the participant, the more likely a false confession. Of the 15-to 16-year-olds, 72 percent signed confessions, as did 78 percent of the 12-to 13-year-olds.
"There's no question that young people are more at risk," says Saul Kassin, a psychology professor at Williams College, who has done similar studies with similar results, "But adults are highly vulnerable too."
Both Kassin and Redlich note that the entire "interrogation" in their experiments consisted of a simple accusation-not hours of aggressive questioning-and still, most participants falsely confessed.
Because of the stress of a police interrogation, they conclude, suspects can become convinced that falsely confessing is the easiest way out of a bad situation. "In some ways," says Kassin, "false confession becomes a rational decision."
【单选题】

A.In her experiment, participants were seated at computers and told not to hit the "alt" key, because doing so would crash the systems.

B."In some ways," says Kassin, "false confession becomes a rational decision."

C."It's a little like somebody's working on them with a dental drill," says Franklin Zimring, a law professor at the University of California at Berkeley.

D."But adults are highly vulnerable too."

E.How could an innocent person admit to doing something he didn't do?

F.Redlich also found that the younger the participant, the more likely a false confession.

正确答案:C

答案解析:解答此题时要注意，空格后是一段引文，而空格前又没有引文，所以此空格处一定是引用了某人的话，因此答案只可能在B、C、D中。但D只是一句引用的话，并没有提及是谁说的，这不符常理，故排除。B虽然提到了Kassin，但没有对其身份进行说明，这也不符“第一次提到某人时要有说明”的习惯（实际上他出现在第五段），故排除B。因此只能选C，从内容上看也符合。

2、Keeping Cut Flowers
1 While everybody enjoys fresh cut flowers around his house, few people know how to keep them for as long as possible. This may be done by keeping in mind a few simple fact.
2 An important thing to remember about cut flowers is that they are sensitive to temperature. For example, studies have shown that cut carnations (康乃馨) retain their freshness eight times longer when kept at 12℃ than when kept at 26℃. Keeping freshly harvested flowers at the right temperatures is probably the most important aspect of flower care.
3 Flowers are not intended by nature to live very long. Their biological purpose is simply to attract birds or insects, such as bees, for pollination (粉). After that, they quickly dry up and die. The process by which flowers consume oxygen and produce carbon dioxide, called respiration, generates the energy the flower needs to give the flower its shape and color. The making of seeds also depends on this energy. While all giving things respire, flowers have a high level of respiration. A result of all this respiration is heat, and for flowers the level of heat relative to the mass of the flower is very high. Respiration also brings about the eventual death of the flower. Thus the greater the level of respiration, the sooner the flower dies.
4 How, then, to control the rate at which flowers die? By controlling respiration. How is respiration controlled? By controlling temperature. We know that respiration produces heat, but the reverse is also true. Thus by maintaining low temperatures, respiration is reduced and the cut flower will age more slowly.
5 Another vital factor in keeping cut flowers is the quality of the water in which they are placed. Flowers find it difficult to "drink" water that is dirty or otherwise polluted. Even when water looks and smells clean, it almost certainly contains harmful substances that can endanger the flowers. To rid the water of these unwanted substances, household chlorine bleach (含氯漂白剂) can be used in small quantities. It is recommended that 15 drops of chlorine bleach (at 4% solution) be added to each liter of water. The water and solution should also be replaced each day.
Paragraph 2____
【单选题】

A.Control of Respiration

B.Beauty of Fresh Cut Flowers

C.Role of Respiration

D.Most Important Aspect of Flower Care

E.Need for Clean Water

F.Ways of Stopping Respiration

正确答案:D

答案解析:本段第1句和最后一句都是该段的主题句，但是最后一句是此题的答案，选项D几乎是最后一句的原句重现，故选D。

3、Better Control of TB Seen if a Faster Cure is Found
The World Health Organization estimates that about one-third of all people are infected with bacteria that cause tuberculosis. Most times, the infection remains inactive. But each year about eight million people develop active cases of TB, usually in their lungs. Two million people die of it. The disease has ______ with the spread of AIDS and drug-resistant forms of tuberculosis.
Current treatments take at least six months. Patients have to take a combination of several antibiotic drugs daily. But many people stop as soon as they feel better. Doing that can lead to an infection that resists treatment. Public health experts agree that a faster-acting cure for tuberculosis would be more effective. Now a study estimates just how effective it might be. A professor of international health at Harvard University led the study. Joshua Salomon says a shorter treatment program would likely mean not just more patients cured. It would also mean fewer infectious patients who can pass on their infection to others.
The researchers developed a mathematical model to examine the effects of a two-month treatment plan. They tested the model with current TB conditions in Southeast Asia. The scientists found that a two-month treatment could prevent about twenty percent of new cases. And it might prevent about twenty-five percent of TB deaths. The model shows that these reductions would take place between two thousand twelve and two thousand thirty. That is, if a faster cure is developed and in wide use by two thousand twelve.
The World Health Organization developed the DOTS program in nineteen ninety. DOTS is Directly Observed Treatment, Short-course. Health workers watch tuberculosis patients take their daily pills to make sure they continue treatment.
Earlier this year, an international partnership of organizations announced a plan to expand the DOTS program. The ten-year plan also aims to finance research into new TB drugs. The four most common drugs used now are more than forty years old. The Global Alliance for TB Drug Development says its long-term goal is a treatment that could work in as few as ten doses.
【单选题】

A.increased

B.decreased

C.changed

D.disappeared

正确答案:A

答案解析:本句后半部分说到，由于艾滋病的传播和抗药型结核病的出现，那么根据推理，结核病自然应该“增加”，而不可能“减少”或“消失”。至于“变化”，不应该是结核病本身发生变化，而应该是发病率发生变化。

4、Although originally a German innovation, kindergarten got its real start in the United States as a movement to provide an improved learning environment for children. 【单选题】

A.an easy

B.a playful

C.an open

D.a better

正确答案:D

答案解析:improved是improve的过去分词，在句中起形容词作用，“改进了的、更好的”，与better意思相近；easy：容易的；playful：顽皮的、闹着玩的；open：公开的、开着的。

5、A special education
Videodisc holds great promise of helping to meet the needs of American schoolchildren who have problems seeing, hearing, speaking, or socializing. Almost eleven percent of the students aged 3-21 in this country have an impairment that affects their ability to benefit from a regular education program. Handicapped students require special education because they are often markedly different from most children in one or more of the following ways: mentally retarded (发展迟缓的) learning-disabled, emotionally disturbed, deaf, visually handicapped, physically handicapped, or other health impairments. The education of these handicapped children is rewarding but challenging.
A special education student usually needs a longer period of time to acquire information. Repetitive teaching techniques are often beneficial, and indefatigable (孜孜不倦) consistency on the part of the teacher is frequently necessary. Interactive videodisc courseware has characteristics that can be capitalized upon to meet the challenges that special education poses. A videodisc program is infinitely patient. Repetition of any videodisc lesson can continue endlessly, and designers can assure absolute consistency within a program. Most important, according to special educator William Healey of the University of Arizona, is that videodisc "adds an extra dimension of realism for children who need graphic representations."
Healey explained that deaf and mentally retarded children especially have difficulty grasping figurative language and higher-order language concepts. He believes that for special education, the power of videodisc lies in the ability of the technology to visually represent language concepts normally taken for granted by non-handicapped persons. Complex figurative language forms such as idioms and metaphors come most readily to mind as being difficult for handicapped learners.
According to Professor Healey, we may infer that mentally retarded children perhaps____
【单选题】

A.need graphic representations in order to understand higher-order language concepts

B.are good at studying English idioms but often fail to grasp higher-order language concepts

C.are not very patient with videodisc which helps them to understand the world concepts

D.tend to be deaf as well and have difficulty learning the simple concept "before and after"

正确答案:A

答案解析:文章第3段前两句指出，希利教授解释说耳聋和智力发展迟缓的孩子很难明白比喻性的话语和较为复杂的语言概念，所以他们需要直观的图解，而影碟能够帮助他们，由此推断A正确。

6、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。

7、Radiocarbon Dating
Nowadays scientists can answer many questions about the past through a technique called radiocarbon (放射性碳), or carbon - 14 dating. One key to understanding how and why something happened is to discover when it happened.
Radiocarbon dating was developed in the late 1940s by physicist Willard F. Libby at the University of Chicago. An atom of ordinary carbon, called carbon -12, has six protons (质子) and six neutrons (中子) in its nucleus (原子核). Carbon - 14, or C - 14, is a radioactive, unstable form of carbon that has two extra neutrons. It returns to a more stable form of carbon through a process called decay (衰减). This process involves the loss of the extra neutrons and energy from the nucleus.
In Libby's radiocarbon dating technique, the weak radioactive emissions(放射)from this decay process are counted by instruments such as a radiation detector and counter. The decay rate is used to determine the proportion of C -14 atoms in the sample being dated.
Carbon - 14 is produced in the Earth's atmosphere when nitrogen(氮) - 14, or N - 14, interacts with cosmic rays (宇宙射线). Scientists believe since the Earth was formed, the amount of nitrogen in the atmosphere has remained constant. Consequently, C -14 formation is thought to occur at a constant rate. Now the ratio of C -14 to other carbon atoms in the atmosphere is known. Most scientists agree that this ratio is useful for dating items back to at least 50,000 years.
All life on Earth is made of organic molecules (分子) that contain carbon atoms coming from the atmosphere. So all living things have about the same ratio of C -14 atoms to other carbon atoms in their tissues (组织). Once an organism (有机体) dies it stops taking in carbon in any form, and the C -14 already present begins to decay. Over time the amount of C - 14 in the material decreases and the ratio of C - 14 to other carbon atoms goes down. In terms of radiocarbon dating, the fewer C -14 atoms in a sample, the older that sample is.
Radar is used to determine the characteristics of radiocarbon.【单选题】

A.Right

B.Wrong

C.Not mentioned

正确答案:C

答案解析:本题有较大难度，答案依据不明显，需要通读全文作出判断。通读全文后可以发现文章并未提及使用雷达来进行放射性碳测定，所以本题是未提及的，答案是C。

8、One Good Reason to Let Smallpox Live
It's now a fair bet that we will never see the total extinction (灭绝) of the smallpox (天花) virus. When smallpox was completely got rid of in the world, scientists wanted to destroy the killer virus in the last two labs, one in the US and one in Russia. They asked: If smallpox has truly gone from the planet, what point was there in keeping these reserves?
In reality, of course, it was naive to imagine that everyone would let go of such a powerful potential weapon. Undoubtedly several nations still have a few vials (小药瓶). And the last "official" stocks of live Virus bred mistrust of the US and Russia, _____ no obvious gain.
Now American researchers have found an animal model of the human disease, opening the way for tests on new treatments and vaccines(疫苗). So once again there's a good reason to the virus, just in keep the disease puts in a reappearance.
How do we case with the mistrust of the US and Russia? deal. Keep the virus Simple international support in a well - guarded UN laboratory that's open to all countries. The US will object, of course, just as it with a multilateral (多边的) approach to just about everything. But it doesn't mean the idea is rejects. If the virus is useful, then let's wrong it the servant of all humanity make not just a part of it.
【单选题】

A.in

B.for

C.at

D.of

正确答案:B

答案解析:本题有一定难度，考查for的用法，for除了做介词外，还可做连词，表示“因为”，文章此处是说“……因为没有获得明显的收获”，答案是B。

9、My doctor said I should vary my diet more【单选题】

A.change

B.prepare

C.cook

D.choose

正确答案:A

答案解析:医生说我的饮食要多变化些。本题难度不大，干扰项干扰不大，是送分题，可以确认vary和change都是“变化”的意思，答案是A。

10、The courageous hay has been the subject of massive media coverage.【单选题】

A.extensive

B.continuous

C.instant

D.quick

正确答案:A

答案解析:这个勇敢的男孩成为了媒体大幅报道的对象。本题难度不大，干扰项干扰不强。m assive和extensive都可指“大量的”，其他项和答案意义差异较大，最佳答案是A。