Researchers in the psychology department at the University of California at Los Angeles (UCLA) have discovered a major difference in the way men and women respond to stress. This difference may explain why men are more likely to suffer from stress-related disorders.
Until now, psychological research has maintained that both men and women have the same "fight-or-flight" reaction to stress. In other words, individuals either react with aggressive behavior, such as verbal or physical conflict ("fight"), or they react by withdrawing from the stressful situation ("flight"). However, the UCLA research team found that men and women have quite different biological and behavioral responses to stress. While men often react to stress in the fight-or-flight response, women often have another kind of reaction which could be called "tend and befriend." That is, they often react to stressful conditions by protecting and nurturing their young ("tend"), and by looking for social contact and support from others - especially other females ('befriend").
Scientists have long known that in the fight-or- flight reaction to stress, an important role is played by certain hormones(激素) released by the body. The UCLA research team suggests that the female tend-or-befriend response is also based on a hormone. This hormone, called oxytocin, has been studied in the context of childbirth, but now it is being studied for its role in the response of both men and women to stress. The principal investigator, Dr. Shelley E. Taylor, explained that "animals and people with high levels of oxytocin are calmer, more relaxed, more social, and less anxious." While men also secrete(分泌）oxytocin, its effects are reduced by male hormones.
In terms of everyday behavior, the UCLA study found that women are far more likely than men to seek social contact when they are feeling stressed. They may phone relatives or friends, or ask directions if they are lost.
The study also showed how fathers and mothers responded differently when they came home to their family after a stressful day at work. The typical father wanted to be left alone to enjoy some peace and quiet. For a typical mother, coping with a bad day at work meant focusing her attention on her children and their needs.
The differences in responding to stress may explain the fact that women have lower frequency of stress-related disorders such as high blood pressure or aggressive behavior. The tend-and-befriend regulatory(调节的) system may protect women against stress, and this may explain why women on average live longer than men.
【小题1】The UCLA study shows that in response to stress, men are more likely than women to _____ .
| A．turn to friends for help | B．solve a conflict calmly |
| C．find an escape from reality | D．seek comfort from children |
| A．Men have the same level of oxytocin as women do. |
| B．Oxytocin used to be studied in both men and women. |
| C．Both animals and people have high levels of oxytocin. |
| D．Oxytocin has more of an effect on women than on men. |
| A．Male hormones help build up the body's resistance to stress. |
| B．In a family a mother cares more about children than a father does. |
| C．Biological differences lead to different behavioral responses to stress. |
| D．The UCLA study was designed to confirm previous research findings. |
| A．How men and women get over stress |
| B．How men and women suffer from stress |
| C．How researchers overcome stress problems |
| D．How researchers handle stress-related disorders |
【小题1】C
【小题2】D
【小题3】C
【小题4】A
解析【文章大意】本文是一篇科技调查报告。本文主要介绍男女对压力反应的区别和原因以及如何克服压力。
【小题1】根据第二段“men often react to stress in the fight-or-flight response”和“they react by withdrawing from the stressful situation ("flight")”可判断男人更可能从现实中逃脱出来。
【考点定位】细节推断题。
【小题2】根据第三段 an important role is played by certain hormones(激素) released by the body和men also secrete(分泌）oxytocin, its effects are reduced by male hormones可判断，激素扮演重要角色，但是男人也分泌oxytocin，但受男性荷尔蒙的影响，它的作用降低了。故选D。
【考点定位】细节推断题。
【小题3】根据第五段第一句“The study also showed how fathers and mothers responded differently when they came home to their family after a stressful day at work”可判断选D。
【考点定位】细节推断题。
【小题4】根据第一段的中心句：a major difference in the way men and women respond to stress.可知：本文由介绍男女对压力反应的区别和原因然后主要谈男女如何克服压力。
【考点定位】主旨大意题。
云南师大附小一线名师提优作业系列答案科目：高中英语 来源： 题型：阅读理解
Recordings of angry bees are enough to send big, tough African elephants running away, a new study says. Beehives (蜂窝)-either recorded or real-may even prevent elephants from damaging farmer's crops.
In 2002, scientist Lucy King and her team found that elephants avoid certain trees with bees living in them. Today, Lucy wants to see if African honeybees might discourage elephants from eating crops. But before she asked farmer to go to the trouble of setting up beehives on their farms, she needed to find out if the bees would scare elephants away.
Lucy found a wild beehive inside a tree in northern Kenya and set up a recorder. Then she threw a stone into the beehive, which burst into life. Lucy and her assistant hid in their car until the angry bees had calmed down. Next，Lucy searched out elephant families in Samburu National Reserve in northern Kenya and put a speaker in a close to each family.
From a distance, Lucy switched on the pre-recorded sound of angry bees while at the same time recording the elephants with a video camera. Half the elephant groups left the area within ten seconds. Out of a total of 17 groups, only one group ignored the sound of the angry bees. Lucy reported that all the young elephants immediately ran to their mothers to hide under them. When Lucy Played the sound of a waterfall (瀑布) instead of the angry bees to many of the same elephant families, the animals were undisturbed. Even after four minutes, most of the groups stayed in one place.
Lucy is now studying whether the elephants will continue to avoid the sound of angry bees after hearing it several times. She hasn't tested enough groups yet to know, but her initial (最初的) results were promising enough to begin trials with farmers. She has now begun placing speakers in the fields to see if elephants are frightened away.
【小题1】We know from the passage that elephants may be frightened of .
| A．loud noises | B．some crops |
| C．video cameras | D．angry bees |
| A．works by herself in Africa |
| B．needs to test more elephant groups |
| C．has stopped elephants eating crops |
| D．has got farmers to set up beehives on their farms |
| A．To record the sound of bees. |
| B．To make a video of elephants. |
| C．To see if elephants would run away. |
| D．To find out more about the behavior of bees. |
| A．Young elephants ignore African honeybees. |
| B．Waterfalls can make elephants stay in one place. |
| C．Elephants do not go near trees with bees living in them. |
| D．Farmers do not allow Lucy to conduct tests in their fields. |
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科目：高中英语 来源： 题型：阅读理解
DNA left at a crime scene could be used in the future to build up a picture of an offender’s face, it was revealed tonight.
A first step towards genetic mugshots has been taken by researchers in the US who link specific DNA markers with face shape. To identify the genes, they focused on known mutations(突变) that cause changes of the face and head. Normal versions of these genes were found to influence individual features. For instance, one gene affected the lips, another the shape and configuration of bones around the eyes, and a third the appearance of the mid-face and skull. In total, 20 genes had “significant effects” on facial appearance.
Lead scientist Professor Mark Shriver, from Pennsylvania State University, said: “We use DNA to match to an individual or identify an individual, but you can get so much more from DNA. Currently we can’t go from DNA to a face, or from a face to DNA, but it should be possible.” The implications are far reaching, raising the possibility of creating a data bank of facial types based on genetic markers. DNA from a crime scene could then be used to produce a rough image of the face of an offender or victim. Such genetic mugshots may be more reliable than computer-generated “e-fits” based on witnesses’ recollections. Other uses of the technique might include proving the identity of fathers in paternity cases, or visualising our remote ancestors from fossil DNA.
The scientists wrote in the online journal Public Library of Science Genetics: “Such predictive modelling could be forensically useful; for example, DNA left at crime scenes could be tested and faces predicted in order to help to narrow the pool of potential suspects. Further, our methods could be used to predict the facial features of descendants, deceased ancestors, and even extinct human species. In addition, these methods could prove to be useful diagnostic tools.” The team developed a model which first established a range of physical face shapes from people of mixed West African and European ancestry from the US, Brazil and Cape Verde. Measurements were taken of thousands of point co-ordinates on grids placed over 3D images of the faces.
Statistical methods were then used to determine the relationship between facial differences and the effects of gender, ethnic ancestry and individual gene variants.
【小题1】The underlined word “mugshots” in the second paragraph most probably means _________.
| A．different faces | B．characteristics | C．pictures of faces | D．genders |
| A．they can merely match to an individual or identify an individual |
| B．there is a possibility of going from DNA to a face |
| C．DNA could be used to produce a rough image of an offender’s face |
| D．this technology is more reliable than computer-generated “e-fits” |
| A．Creating a data bank of DNA |
| B．Recognizing the DNA of criminals |
| C．Predicting the location of offence using DNA |
| D．Building image of offender’s face from DNA |
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科目：高中英语 来源： 题型：阅读理解
Technology and the present generation of kids go hand in hand. Taking advantage of this factor, Lim Hojoon, the designer from South Korea, has come up with an educational gadget (小装置) especially for children.
Kidget, as the name suggests, is a combination of two words – kid and gadget. This kid-friendly gadget has various uses. When your child is in a mood to read, it takes the form of a storybook. When the mood is to draw and color this wonder gadget turns into a perfect canvas (画布). Your child can freely give color to all his/her imaginations. Should he or she wish to have some fun, see this device change into a musical instrument. You too would enjoy doing activities with your loved one using this gadget. This touch screen device will definitely prove to be an ideal friend.
As many parents agree, in this age of technological advancements it is much easier to introduce children to new gadgets than adults. While many adults refrain (克制) from trying out something new, kids are more than prepared to take the leap. Keeping this fact in mind, Kidget is the perfect gift for the child of the 21st century. You will be surprised to see how fast your little one gets acquainted with the device. You might even find yourself lagging (落后) behind at times.
Kidget has another hidden advantage. It helps take the load off young shoulders. With three things rolled into one, a child has much less books, stationary items and related goods to carry. It comes with a promise to make life simpler for kids. Not only is it simple to use but also easy to carry along. The stylish protective case comes with a belt attached to it. Children up to 14 years of age, the targeted audience, enjoy the freedom that comes with it.
【小题1】The Kidget probably can’t serve as a ______.
| A．storybook | B．perfect canvas |
| C．musical instrument | D．television |
| A．has many functions |
| B．is only suitable for kids |
| C．can make kids addicted if not properly used |
| D．can change its shape and color |
| A．it can be put into a schoolbag |
| B．children can carry much less with it |
| C．it has a stylish protective case |
| D．it contains all the textbooks |
| A．has both advantages and disadvantages |
| B．hasn’t been put into use |
| C．needs to be further improved |
| D．is a perfect gift for kids |
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科目：高中英语 来源： 题型：阅读理解
Julie was preparing for a trip when her phone slipped into a sink full of water. Panic moment! She quickly picked up the wet phone and tried to turn it on, but nothing worked. Her first reaction? She got dressed, drove to the nearest store, and bought a new model at full price.
A new study finds that fear of losing your phone is a common illness. About 66 percent of those surveyed suffer from nomophobia or “no mobile phone phobia”. Interestingly, more women worry about losing their phone than men.
Fortunately, there’s a solution.
The first step is to figure out if you have nomophobia. Checking your phone too often is one thing, but the true sign of a problem is that you can’t conduct business or go about your routine when the fear becomes so severe.
Do you go to unusual lengths to make sure you have your phone? That’s another sign of a problem. If you find you check your phone plenty of times per hour, or a total of an hour per day, there may be a problem.
Some of the treatments are similar to those for treating anxiety attacks: Leaving the phone behind and not checking e-mail or text messages, and then learning to tolerate the after anxiety. Even if this leads to a high level of worry and stress, the solution is to push through the fear and learn to deal with not having your phone.
Of course, there are also technological alternatives. Luis Levy, a co-founder at Novy PR, says he uses an application called Cerberus that can automatically track the location of his phone. To find it, he can just go to a Web site and see the phone’s location.
He also insures his phone through a service called Asurion. The company’s description of its product reads like a prescription for anxiety: “60 million phones are lost, stolen or damaged each year. You’ll have complete peace of mind knowing that your phone is protected and you can quickly reconnect with family, friends and work, as soon as the very next day!”
【小题1】Why does the author mention Julie’s experience in the first paragraph?
| A．To inform us that mobile phones are useful. |
| B．To introduce the topic for discussion. |
| C．To warn us that we should be careful. |
| D．To tell us we should get phones ready for a trip. |
| A．Fear of losing mobile phones |
| B．Habits of using mobile phones |
| C．Eagerness for new mobile phones |
| D．Independence of mobile phones |
| A．Avoiding using phone for some time |
| B．Learning more about modern technology. |
| C．Protecting one’s phone against any damage. |
| D．Not using a mobile phone in one’s daily work. |
| A．It lets you know other people also lose their phones. |
| B．It will give you a new phone through insurance. |
| C．It enables you to reconnect with your acquaintance. |
| D．It gives you a prescription to treat nomophobia. |
| A．Solutions to nomophobia. |
| B．New mobile phone technology. |
| C．Disadvantages of mobile phone. |
| D．Attitude toward mobile phone. |
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科目：高中英语 来源： 题型：阅读理解
A recent study, published in last week’s Journal of the American Medical Association, offers a picture of how risky(冒险的) it is to get a lift from a teenage driver. Indeed, a 16-year-old driver with three or more passengers is three times as likely to have a deadly accident as a teenager driving alone, while the risk of death for drivers between 30 and 59 decreases with each additional passenger.
The authors also found that the death rates for teenage drivers increased sharply after 10 p.m., and especially after midnight. With passengers in the car, the driver was even more likely to die in a late-night accident.
Robert Foss, a scientist at the University of North Carolina Highway Safety Research Center, says the higher death rates for teenage drivers have less to do with “really stupid behavior” than with just a lack of driving experience. “The basic issue,” he says, “is that adults who are responsible for issuing licenses fail to recognize how complex and skilled a task driving is.”
Both he and the author of the study believe that the way to mitigate (使……缓解)the problem is to have states set up so-called graduated licensing systems, in which getting a license is a multistage process. A graduated license requires that a teenager first prove himself capable of driving in the presence of an adult, followed by a period of driving with night or passenger limits, before graduating to full driving licenses.
Graduated licensing systems have reduced teenage driver crashes, according to recent studies. About half of the states now have some sort of graduated licensing system in place, but only 10 of those states have limits on passengers. California is the strictest, with a new driver under 20 forbidden to carry any passenger (without the presence of an adult over 25) for the first six months.
【小题1】Which of the following situations can we infer is most dangerous according to the passage?
| A．A teenager driving after midnight with passengers in the car. |
| B．Adults giving a lift to teenagers on the highway after 10 p.m. |
| C．Adults driving with three or more teenage passengers late at night. |
| D．A teenager getting a lift from a stranger on the highway at midnight. |
| A．their frequent driving at night |
| B．their improper ways of driving |
| C．their driving with passengers |
| D．their lack of driving experience |
| A．The licensing departments are partly responsible for teenagers' driving accidents. |
| B．Driving is too complex a skill for teenagers to learn. |
| C．Teenagers should be forbidden to apply to take driving lessons. |
| D．Teenagers should spend more time learning to drive. |
| A．driving in the presence of an adult should be made a rule |
| B．the licensing system should be improved |
| C．they should not be allowed to drive after 10 p.m. |
| D．they should be forbidden to take on passengers |
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科目：高中英语 来源： 题型：阅读理解
Going green is something that affects every single one of us. Whether by recycling those plastic water bottles, or by cutting down on electricity in your home, the importance of going green on a personal level is extremely important. But, when you’re a millionaire NBA basketball star, how do you help out the environment?
Yao Ming is a basketball player that plays for the Houston Rockets and has spoken out against hunting of sharks for fins, a delicious food in his native China. He is also the United Nations’ Environmental champion. His goal is to raise awareness of climate change and energy-saving. “I will work with young people across the world and try to inspire them to plant trees, harvest rainwater and to become environmental champions in their own communities.”
The Philadelphia Eagles, a professional American football team, are really doing their part to give back to the community. The Eagles Go Green page has a “Green Energy Calculator” and according to the web site fans have saved $ 73,674.90 a year and saved 666,320 pounds of CO2 per year. Also, the Eagles have set up a “Stop global warming virtual march（虚拟游行）on Washington”, a march across America for one year, through the Internet with a goal to bring fans together and to urge leaders to deal with the serious problem of global warming now.
Bob Burnquist, a Brazilian skateboarder, is a member of Action Sports Environmental Coalition and founder of a program that gets organic foods and farming into schools for healthy lunch programs. Bob also has a huge homegrown organic farm where he hosted a gathering in celebration of Earth Day.
Kelly Slater is a surfer and eight-time champion, but he also supports saving the coral reefs world wide. He has founded the Kelly Slater Invitational Competition which raises funds and awareness for Reef Check, which is able to get its message out to a large group of guests including professional surfers, film and music stars, and other famous people.
【小题1】According to the passage, Yao Ming wants to ________.
| A．help the Houston Rockets win the NBA championship |
| B．ask the United Nations to protect sharks in China |
| C．encourage young people to care about the environment |
| D．train more young people to become players of NBA |
| A．They have called on fans to do things to reduce global warming. |
| B．They have marched on Washington to bring fans together. |
| C．They have saved $ 73,674.90 for solving global warming. |
| D．They have reduced CO2 emission by 666,320 pounds per year. |
| A．Bob Burnquist created Earth Day. |
| B．Bob Burnquist eats only organic foods. |
| C．Kelly Slater donated a lot of money. |
| D．Kelly Slater held a competition. |
| A．Highly Competitive Athletes |
| B．Environment-friendly Athletes |
| C．World-famous Athletes |
| D．Millionaire Athletes |
| A．Only famous people need to care about environmental problems. |
| B．America is the country that takes best care of environment. |
| C．Environmental problems have a common effect on everyone of us. |
| D．Yao Ming’s goals to raise people’s awareness of environment are mainly about climate change and air pollution. |
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科目：高中英语 来源： 题型：阅读理解
Farmers, especially in developing countries, are often criticized for cutting down forests. But a new study suggests that many farmers recognize the value of keeping trees.
Researchers using satellite images found at least ten percent tree cover on more than one billion hectares of farmland. That is almost half the farmland in the world. Earlier estimates were much lower but incomplete. The authors of the new study say it may still underestimate the true extent worldwide.
The study found the most tree cover in South America. Next comes Africa south of the Sahara, followed by Southeast Asia. North Africa and West Asia have the least.
The study found that climate conditions alone could not explain the amount of tree cover in different areas. Nor could the size of nearby populations, meaning people and trees can live together. There are areas with few trees but also few people, and areas with many trees and many people. The findings suggest that things like land rights, markets or government policies can influence tree planting and protection.
Dennis Garrity, who heads the World Agroforestry Center, says farmers are acting on their own to protect and plant trees. The problem, he says, is that policy makers and planners have been slow to recognize this and to support such efforts.
The satellite images may not show what the farmers are using the trees for, but trees provide nuts, fruit, wood and other products. They also help prevent soil loss and protect water supplies. Even under drought(干旱)conditions, trees can often provide food and a way to earn money until the next growing season.
Some trees act as natural fertilizers. They take nitrogen(氮气)out of the air and put it in the soil. Scientists at the Center say the use of fertilizer trees can re-duce the need for chemical nitrogen by up to three-fourths. Trees also capture carbon dioxide, a gas linked to climate change.
【小题1】Through the study, the researchers found that .
| A．there are more trees on farmlands than expected |
| B．fewer trees are being cut in developing countries |
| C．most farmers still don’t realize the value of trees |
| D．trees play a key role in preventing climate change |
| A．Southeast Asia | B．West Asia. |
| C．South America. | D．Africa south of the Sahara. |
| A．most farmers care about nothing but their own interests |
| B．there are usually few people living in areas with few trees |
| C．government plays a small role in tree planting and protection |
| D．government should support farmers in planting and protecting trees |
| A．how farmers plant trees |
| B．what products trees can bring |
| C．the importance of trees to farmers |
| D．the environmental value of tree cover |
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科目：高中英语 来源： 题型：阅读理解
Why do human beings still risk their lives under ground and doing one of the dirtiest and most dangerous jobs in the world？It’s an increasingly urgent question，given the recent highprofile(引人注目的) mining accidents in Sago，W.Va.and Huntington，Utah.A small group of engineers and robotics experts look forward to a day in the nottoodistant future when robots and other technology do most of the dangerous mining work.
Robotic technology，in particular，holds much promise，McAteer says，especially when it comes to mapping mines and rescuing trapped miners—the special operations of the mining industry.
One of the first mining robots was developed five years ago at CarnegieMellon University’s Robotics Institute.It was called Groundhog and it looked like a golf cart.It used lasers(激光器) to “see” in dark tunnels and map abandoned mines—some of the most dangerous work in the business.
The latest design is called Cave Crawler.It’s a bit smaller than Groundhog，and even more advanced.It can take photos and video and has sensors mounted(增加) that can detect the presence of dangerous gases.Incredibly，the robot has a real sense of logic.If it comes across an obstacle it gets confused.It has to think through the process and where to go next，and sometimes it throws_a_fit just like a real person.
The biggest obstacle，though，is cost.The original research project was federally funded，but that money has dried up，and it’s not clear where future funding will come from. Partly for that reason，and partly because of advances in safety，mining is not nearly as dangerous as it was in the past.Since 1990，fatalities(致命性) have declined by 67 percent and injuries by 51 percent，according to the National Mining Association.
Some experts predict that robots in mines will serve much of the same function that they do in the automotive industry.The robots do the most repetitive and dangerous jobs，but don’t eliminate(消除) the need for human workers.
【小题1】The underlined phrase “throws a fit” in Paragraph 4 probably means “________”．
| A．gets angry | B．gets sick |
| C．becomes hungry | D．becomes cheerful |
| A．robots in mines will serve much in the automotive industry |
| B．there will be no need for human workers in mines |
| C．the mine robots will have a very bright future |
| D．robots in mines have a long way to go |
| A．Mining robots do most of the mining work at present. |
| B．Groundhog can discover the presence of dangerous gases. |
| C．Experts are trying to make robots save miners in danger. |
| D．Robots cannot do dangerous work in dark areas. |
| A．Mining Accidents in America |
| B．Could Robots Replace Humans in Mines? |
| C．Cave Crawler，the Latest Robot |
| D．The Development of Robots |
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