2023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、Radiocarbon DatingNowadays scientists can answer many questions about the past through a technique called radiocarbon (放射性碳), ｏｒcarbon - 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, ｏｒC - 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 detectｏｒａｎｄ　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, ｏｒN - 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 fｏｒdating 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.The radiocarbon dating technique is only about 40 years old.【单选题】

A.Right

B.Wrong

C.Not mentioned

正确答案:B

答案解析:本题有一定难度，需要认真寻找答案依据。主要答案依据在文章第二段第一句：Radiocarbon dating was developed in the late 1940s谈到放射性碳测定法源于20世纪40年代，显然，早就超过了40年历史，所以本题错误，答案是B。

2、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? _____. "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. However, an Oxford University research suggests this perception is open to question. 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:E

答案解析:本题难度很大。可用排除法和代入法。本题的下文谈到了神经学家说的话，即我们的大脑比它平时能做的要做得多，但把精力集中在两件事情上的能力是有限的，是一段具体论述，那么可以推断本题此处应该是一个概括性的句子，以引导本题的下文，回来看选项，把E代入文中，符合逻辑，答案是E。

3、Citizen ScientistsUnderstanding how nature responds to climate change will require monitoring key life cycle event-flowering, the appearance of leaves, the first frog calls of the spring all around the world. But ecologists can\'t be everywhere so they\'re turning to non-scientists, sometimes called citizen scientists, fｏｒhelp. Climate scientists are not present everywhere. Because there are so many places in the world ａｎｄ　not enough scientists to observe all of them, they\'re asking fｏｒyour help in observing signs of climate change across the world. The citizen scientist movement encourages ordinary people too observe a very specific research interest-birds, trees, flowers budding, etc. ａｎｄ　send their observations to a giant ｄａｔａｂａｓｅ to be observed by professional scientists. This helps a small number of scientists track a large amount of data that they would never be able to gather on their own. Much like citizen journalists helping large publications cover a hyper-local beat, citizen scientists are ready fｏｒthe conditions where they live. All that\'s needed to become one is a few minutes each day ｏｒeach week to gather data ａｎｄ　send it in. Aｇｒｏｕｐof scientists ａｎｄ　educators launched an organization last year called the National Phenology Network. "Phenology" is what scientists call the study of the timing of events in nature. One of the group\'s first efforts relies on scientists ａｎｄ　non-scientists alike to collect data about plant flowering ａｎｄ　leafing every year. The program, called Project BudBurst, collects life cycle data on a variety of common plants from across the United States. People participating in the project which is open to everyone record their observations on the Project BudBurst website. "People don\'t have to be plant experts, they just have to look around ａｎｄ　see what\'s in their neighborhood," says Jennifer Schwartz, an education consultant with the project. "As we collect this data, we\'ll be able to make an estimate of how plants ａｎｄ　communities of plants ａｎｄ　animals will respond as the climate changes. "What are citizen scientists asked to do?【单选题】

A.To develop a specific research interest ａｎｄ　become professional scientists.

B.To send their research observations to a professional ｄａｔａｂａｓｅ.

C.To increase their knowledge about climate change.

D.To keep a record of their research observations.

正确答案:B

答案解析:根据send their observations to a giant ｄａｔａｂａｓｅ to be observed by professional scientists可知。

4、Houses of the FutureWhat will houses be like in thirty years\' time? No one really knows, but architects are trying to predict. What will our home be like then?Future houses will have to be flexible. In thirty years\' time even more of us will be working from home. So we will have to be able to use areas of the house fｏｒwork fｏｒpart of the day ａｎｄ　fｏｒliving fｏｒthe rest. Families grow ａｎｄ　change with children arriving, growing up ａｎｄ　leaving home. The house of the future will have to grow ａｎｄ　change with the family. Nothing will be as fixed as it is now. The house will always be changing to meet changing needs.Everyone agrees that in thirty years\' time we will be living in "intelligent" houses. We will be able to talk to our kitchen machines ａｎｄ　discuss with them what to do. Like this, "We\'ll be having a party this weekend. What food shall we cook?" ａｎｄ　the machine will tell us what food we will have to buy ａｎｄ　how to cook it. We will be able to leave most of the cooking to the machines, just tasting things from time to time to check.The house of the future will be personal, each house will be different. You will be able to change the colｏｒof the wall easily.You won\'t have to paint them-you\'ll be able to tell the wall to change the color! ａｎｄ　if you don\'t like the colｏｒthe next day, you will be able to have a new one. _____!【单选题】

A.You will be able to change the colｏｒof the wall easily.

B.The only thing you won\'t be able to do is move the house somewhere else!

C.ａｎｄ　the machine will tell us what food we will have to buy ａｎｄ　how to cook it.

D.What will our home be like then?

E.The house of the future will have to grow ａｎｄ　change with the family.

F.The kids might take their bedrooms with them as they leave.

正确答案:B

答案解析:本题有一定难度，可用排除法和代入法。本题的上文谈到了你对房子颜色所能做的事情，本题是全段结尾，各种表述可能都有，所以可用排除法和代入法。A，C，D，E都被使用可排除，把B，F代入到文章里，可以确定B是正确答案。

5、The Hurricane1. A hurricane (飓风) is a tropical storm with winds that have reached a constant speed of 74 miles per hour. Hurricane winds blow in a large spiral(螺旋) around a relative calm center known as the "eye". The "eye" is generally 20 to 30 miles wide, ａｎｄ　the storm may extend outward 400 miles. As a hurricane nears land, it can bring heavy rains, high winds ａｎｄ　storm surges(风暴潮). The storm surges ａｎｄ　heavy rains can lead to flooding.2. Hurricanes are given a different label, depending on where they occur. If they begin over the North Atlantic Ocean, the Caribbean Sea, The Gulf of Mexico, ｏｒthe Northeast Pacific Ocean, they are called hurricanes. Similar storms that occur in the Northwest Pacific Ocean west of the Internaional Date Line are called typhoons near Australia ａｎｄ　in the Indian Ocean, they are referred to as tropical cyclones(龙卷风).3. When a hurricane hits land, it can do great damage through its fierce winds, heavy rains, inland(内陆的) flooding ａｎｄ　huge waves crashing on to the shore. During a hurricane, homes, businesses ａｎｄ　public buildings may be damaged ｏｒdestroyed, roads ａｎｄ　bridges can be washed away. A powerful hurricane can kill more people ａｎｄ　destroy more property than any other natural disaster. Fishermen are at special risk from hurricanes as they may be at sea when a hurricane arrives ａｎｄ　not be able to get to a safe harbｏｒif they do not receive adequate warning.4. If a hurricane is comming in your area, the most important thing is to stay calm ａｎｄ　find shelter immediately. Go to your safe room. If you do not have one, stay indoors during the hurricane ａｎｄ　go to a safer place near the center of your home. Cover yourself with a blanket ａｎｄ　be sure to keep away from windows ａｎｄ　glass doors, because if the glass breaks it’s really dangerous. Do not be fooled if there is lull(暂停), it could be the eye of the storm—winds will pick up again.During a hurricane one should stay away from ______.【单选题】

A.different labels

B.window ａｎｄ　glass doors

C.inlａｎｄ　flooding

D.early warning

E.natural disaster

F.a constant speed

正确答案:B

答案解析:本题难度不大，答案依据比较明显，在文章最后一段的第三句：Cover yourself with blanket ａｎｄ　be sure to keep away from windows ａｎｄ　glass doors，…回来看选项，B项符合原文句意，是答案。

6、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.What does Akins do? ______【单选题】

A.She is a soldier.

B.She is an accountant.

C.She is a saleswoman.

D.She is a road sweeper.

正确答案:B

答案解析:本题难度不大，答案依据不难找到。带着题干信息到文章定位，认真阅读文章第四段。第四段第一句话谈到，Akins是旧货店的一名会计，所以答案是B。

7、Cloning: Future Perfect?1 A clone is an exact copy of a plant ｏｒanimal produced from any one cell. Since Scottish scientists reported that they had managed to clone a sheep named Dolly in 1997, research into cloning has grown rapidly. In May 1998, scientists in Massachusetts managed to create two identical calves using cloning technology. A mouse has also been cloned successfully. But the debate over cloning humans really started when Chicago physicist Richard Seed made a surprising announcement: "We will have managed to clone a human being within the next two years," he told the world. 2 Seed\'s announcement provoked a lot of media attention, most of it negative. In Europe, nineteen nations have already signed an agreement banning human cloning ａｎｄ　in the US the President announced: "We will be introducing a law to ban human cloning ａｎｄ　many states in the US will have passed anti-cloning laws by the end of the year". 3 Many researchers are not so negative about cloning. They are worried that laws banning human cloning will threaten important research. In March, The New Englａｎｄ　Journal of Medicine called any plan to ban research on cloning humans seriously mistaken. Many researchers also believe that in spite of attempts to ban it, human cloning will have become routine by 2010 because it is impossible to stop the progress of science. 4 Is there reason to fear that cloning will lead to a nightmare world? The public has been bombarded (轰炸) with newspaper articles, television shows ａｎｄ　films, as well as cartoons. Such information is often misleading, ａｎｄ　makes people wonder what on earth the scientists will be doing next. 5 Within the next five to ten years scientists will probably have found a way of cloning humans. It could be that pretty soon we will be able to choose the person that we want our child to look like. But how would it feel to be a clone among hundreds, the anti-cloners ask Pretty cool, answer the pro-cloners (赞成克隆的人). Paragraph 2____【单选题】

A.Strong Reactions

B.Anxiety about the Future of Cloning

C.The Right to Choose

D.WhatisCloning?

E.Arguments in Favｏｒof Cloning

F.A Common Sight

正确答案:A

答案解析:文章第2段主要讲Seed的言论引起媒体激烈的反应，故选A。

8、You\'d better put these documents in a safe place.【单选题】

A.dark

B.secure

C.guarded

D.banned

正确答案:B

答案解析:你最好把这些文件放在一个安全的地。本题有一定难度，干扰项有一定的干扰性。safe和secure都可指“安全的”，C项指“谨慎的，防护的”，D项指“禁止的”，最佳答案是B。

9、An Intelligent CarDriving needs sharp eyes, keen ears, quick brain, ａｎｄ　coordination between hands ａｎｄ　the brain. Many human drivers have all. these ａｎｄ　can control a fast-moving car. But how does an intelligent car control itself ?There is a virtual driver in the smart car. This virtual driver has "eyes," "brains", "hands" ａｎｄ　"feet", too. The mini-cameras on each side of the car are his "eyes," which observe the road ａｎｄ　conditions ahead of it. They watch the traffic to the car\'s left ａｎｄ　right. There is also a highly automatic driving system in the car. It is the built-in computer, which is the virtual driver\'s "brain". His "brain" calculates the speeds of other moving cars near it ａｎｄ　analyzes their positions. Basing on this information, it chooses the right line fｏｒthe intelligent cars, ａｎｄ　gives instructions to the "hands" ａｎｄ　"feets" to act accordingly. In this way, the virtual driver controls his car. What is the virtual driver\'s best advantage? He reacts rapidly. The mini-cameras are ______ images continuously to the "brain". It completes the processing of the images within 100 milliseconds. However, the world\'s best driver at least needs one second to react. Besides, when he takes action, he needs one more second. The virtual driver is really wonderful. He can reduce the accident rate. considerably on expressway. In this case, can we let him have the wheel at any time ａｎｄ　in any place? Experts warn that we cannot do that just yet. His ability to recognize things is still limited. He can now only drive an intelligent car on expressways. 【单选题】

A.collecting

B.spending

C.sending

D.mending

正确答案:C

答案解析:空白所在的句子说“小型照相机连续地把图像……到大脑”，因此C（发送）放在空白中合适。

10、How to Interview PeopleInterviewing (采访) is one of those skills that you can only get better at. You will never again feel so ill at ease when you try it fｏｒthe first time, ａｎｄ　probably you\'ll never feel entirely comfortable trying to get from another person answers that he ｏｒshe may be too shy to reveal. But at least half of the skill is mechanical. The rest is instinct, which can all be learned with experience.The basic tools fｏｒan interview are paper ａｎｄ　two ｏｒthree well-sharpened pencils. But keep your notebook ｏｒpaper out of sight until you need it. There\'s nothing less likely to relax a person than the arrival of someone with a note-taking pad. ______ Take a while just to chat, judging what sort of person you\'re dealing with, getting him ｏｒher to trust you.Never go into an interview without doing whatever homework you can. If you are interviewing a town official, know his voting record. If it\'s an actor, know what plays he has been in. You will not be liked if you inquire about facts that you could have learned in advance.Many beginning interviewers are afraid that they are forcing the other person to answer questions ａｎｄ　have no right to inquire about his personal secrets. This fear is almost 103 percent unnecessary. Unless the person really hates being interviewed, he is delighted that somebody wants to interview him. Most men ａｎｄ　women lead lives that are uninteresting, ａｎｄ　they grasp any chance to talk to an outsider who seems eager to listen.This doesn\'t necessarily mean that it will go well. In general you will be talking to people who have never been interviewed before, ａｎｄ　they will get used to the process awkwardly, perhaps not giving you anything that you can use. Come back another day; it will go better. You will both even begin to enjoy it-proof that you aren\'t forcing your victim to do something he doesn\'t really want to.【单选题】

A.Come back another day; it will go better.

B.But at least half of the skill is mechanical.

C.As one philosopher interviewed in the film notes, they lack irony.

D.You will not be liked if you inquire about facts that you could have learned in advance.

E.This fear is almost 101 percent unnecessary.

F.Both of you need time to get to know each other.

正确答案:F

答案解析:前面提到不要使用a note-taking pad，后面Take a while just to chat，很显然作者强调的是不要开门见山地拿出小本开始记录，要花时间chat以增进相互之间的了解。所以选F。