People born in winter are more likely to suffer mental health disorders, according to a recent study carried out by researchers at Vanderbilt University in Tennessee.
Researchers raised baby mice from birth to weaning (断奶) in either “summer” light cycles of 16 hours of light and 8 hours of dark or “winter” cycles of 8 hours of light and 16 hours of dark. A third group experienced 12 hours of light and 12 hours of dark a day.
Then half the winter mice stayed in a winter cycle, while half switched to a summer schedule. The summer mice were similarly split. The mice raised in equal periods of light and dark were split into three groups, one of which stayed on the 12hour schedule, one of which joined the winter group, and one of which joined the summer group.
After 28 days, it turns out the summerborn mice behaved the same whether they stayed on the summer cycle or switched to winter. But among the winterborn mice, those stayed in winter kept their previous schedule, while those that switched to summer stayed active for an extra hour and a half, which indicates that mice born and weaned in a winter light cycle showed dramatic disruptions in their biological clocks.
The finding is the first of its kind in mammals, and it could explain why people born in winter are at higher risk for mental health disorders including bipolar depression, schizophrenia and seasonal affective disorder.
“We know that the biological clock regulates mood in humans，”said study researcher McMahon. “If the mechanism (机制) similar to the one that we found in mice operates in humans, then it could not only have an effect on a number of behavioral disorders, but also have a more general effect on personality.”
【小题1】How many groups of mice are there finally in all in the experiment?
| A．Four. | B．Five. | C．Six. | D．Seven. |
| A．The biological clock regulates mood in humans. |
| B．People born in winter are at higher risk for physical health disorders. |
| C．Being born in winter has a negative effect on people's mental health. |
| D．The length of light will influence the behavior of the mice. |
| A．ended | B．torn | C．hit | D．divided |
| A．A jobhunter. | B．A student in the university. |
| C．A newlymarried couple. | D．An experienced dentist. |
【小题1】D
【小题2】C
【小题3】D
【小题4】C
解析试题分析：本文介绍了一项最新的研究结果，结果表明冬天出生的人更容易患心理疾病。
【小题1】细节理解题。在第二段中提到了分成了三组，而在第三段中又将这三组分别分 成了两组、两组和三组，因此在实验中一共有七组老鼠。选D
【小题2】主旨大意题。通读全文可知，文章的第一段就开门见山地点明了本文的主旨， 即冬天出生的人更有可能存在心理障碍，因此选 C。
【小题3】词义猜测题。根据第三段的第一句及画线词后面的“were split into three groups” 可推知，“split”与“divided”同义，意为“被分开”。D
【小题4】推理判断题。通读全文可知，本文告诉我们出生时间对人的精神健康的影响， 再结合四个备选项可知，新婚夫妇应是最合适的读者。选C
考点：考查健康保健类短文
科目：高中英语 来源： 题型：阅读理解
Online Money Earning
Yes you can earn money online without any investment or without anytime limit. I have many useful easy methods for earning easy money while we all spend our useful time on the Internet by surfing, chatting, downloading and other work. There is no need to stop any other work. We can earn with or without our daily routine. Here I tell you the complete method for online earning.
First Method
Earn money with “Bux. to”. You can earn money through “Bux.to” by clicking on ads on “Bux. to” site. First you need to open an account at “Bux. to”.
“Bux. To” is a new international and FREE English based service that allows advertisers to reach thousands of potential customers by displaying their ads on our “Surf Ads” page. An exact calculated percentage of all advertising income is paid to our members. “Bux. to” makes money through advertising.
How you make money
You view websites in 30 seconds through the “Surf Ads” page. Once the 30 seconds is up, you’ll either get a green tick(对号) sign or a red “x”. The green tick sign means you’ve earned $0.01and the “x” means you have not earned money for the visit. You’ll get red x’s when you have more than one websites from the “Surf Ads” page open. When this happens, you get no credit.
Earnings example
You click 10 ads per day =$0.10
20 referrals(转送) click 10 ads per day =$2.00
Your daily earnings =$2.10
Your weekly earnings =$14.70
Your monthly earnings =$63.00
How to get paid
If you have at least $10.00 accumulated, you can click on your account balance within your states area and it will meet your request. At present, it only makes payments through “AlertPay”. It will soon be using other methods of payment.
AlertPay is the payment processing solution that we use to pay members. Your AlertPay address is the e-mail address you use to register with AlertPay. You can get a free AlertPay account at http:// alertpay. com.
Method 2 will publish soon…
【小题1】 What is the author’s purpose of writing this passage?
| A．To tell an interesting story. |
| B．To introduce a surprising way to earn money. |
| C．To solve a puzzling problem. |
| D．To present an exciting research. |
| A．chatting online | B．advertising some products |
| C．clicking on advertisement | D．choosing green ticks or x’s |
| A．wasted | B．spent | C．lost | D．gathered |
| A．You’ll earn $0.10 if you click 1 ad. |
| B．You’ll get many green ticks if you have many websites open. |
| C．You can get your payments through AlertPay. |
| D．Your AlertPay account is not for free. |
查看答案和解析>>
科目：高中英语 来源： 题型：阅读理解
Going on holiday not only makes you feel good while you’re there, you also gain the health benefits for months, new research shows．
Jetting off to destinations such as the Maldives cuts your blood pressure, helps you sleep better and bounce back from stress, it found．The benefits last at least a fortnight longer than the vacation and can be felt for months in some cases where it is claimed．Experts say workers should always take their full holiday entitlement（权利）each year, but as many as one in three don’t．
The study compared key health markers in holidaymakers visiting Thailand, Peru or the Maldives, with people who stayed at home and continued working．The average blood pressure of those on holiday dropped by six percent while the workers saw their blood pressure rise by two percent over the same period．The sleep quality of holidaymakers improved by 17 percent while that of the non-holidaymakers deteriorated by 14 percent．
The study also found the ability of vacationers to recover from stress, known as the stress-resilience test improved by 29 percent．There was a 71 percent fall in stress resilience scores among workers．Tests showed a fall in blood glucose levels, reducing the risk of diabetes （糖尿病）, trimmer waistlines and improved mood and energy levels, with the effects sustained for at least two weeks after returning home．
The Holiday Health Experiment was conducted by tour operator Kuoni and Nuffield Health, the UK’s largest healthcare charity．
【小题1】According to the passage, how many people go on holiday?
| A．Two thirds． | B．One third． |
| C．17 percent． | D．A quarter． |
| A．The further you go, the better you get the benefits． |
| B．Most people like to stay at home during the holiday． |
| C．The result of the study is mostly based on the description from the people involved． |
| D．Holiday makers are more adaptable than non-holidaymakers． |
| A．we have to go on holiday as much as possible |
| B．you’ll certainly get depressed if you don’t go on holiday |
| C．we had better go on holiday for the benefits of health |
| D．it is best to go to foreign countries like Maldives |
| A．A Holiday Health Experiment |
| B．Health Benefits from Holiday |
| C．Health Problems of Having Holiday |
| D．Key Health Markers in Holidaymakers |
查看答案和解析>>
科目：高中英语 来源： 题型：阅读理解
Eco City Farms(生态城市农场) are becoming more popular in cities and towns around the Unites States.
Eco City Farms in Edmonton, Maryland, is located near shopping centers, car repair shops and homes. The neighborhood is a working-class community(社区). People do not have very much money. And they have limited access to fresh food in markets.
Over the past two years, the farm has attracted volunteers from the community like Marcy Clark. She schools her four children at home. On a recent day she brought them to Eco City Farms for a lesson. Her son Alston Clark thinks his experience is very valuable.“I like coming out here,”he says,“You know, you connect with the earth, where your food comes from. You appreciate the food a little bit more.”
Margaret Morgan started Eco City Farms. She thinks of it as a place where people can learn to live healthier lives. “Growing food in a community brings people together,”she continues,“Every piece of what we do here is a demonstration(示范) to show people everything about how to have an eco-friendly community.”she says. From the Eco City Farms people come to know that they are not only growing food and raising chickens and bees, but improving the soil with compost(肥料)made from food waste.
Eco City Farms is an experimental operation. The farm gets its power not from the local electricity networks, but from the sun with solar panels. In winter, the green house use a geothermal(地热)system.
Vegetables can be grown all year. So once a week, all winter long, neighbors like Chris Moss and her three children bike to the farm to pick up a share of the harvest.
“I like eating the vegetables ”say five-year-old Owen Moss.
【小题1】What is mainly talked about in the passage?
| A．Eco City Farms save a lot of energy. |
| B．Eco City Farms are gaining popularity. |
| C．Eco City Farms are influencing community life. |
| D．Eco City Farms helps the working-class live better. |
| A．shopping centers | B．car repair shops |
| C．fast-food restaurants | D．working-class community |
| A．Enthusiastic(热心的). | B．Disappointed. |
| C．Surprised. | D．Doubtful. |
| A．People. | B．Travel. | C．Environment. | D．Education. |
查看答案和解析>>
科目：高中英语 来源： 题型：阅读理解
A recent study suggests that teens’ relationship with parents, friends and teachers may have a lot to do with why they don’t get a good night’s sleep.
David Maume, a sociologist and sleep researcher, analyzed federal health data, which interviewed 974 teenagers when they were 12, and then again at 15. He found that family dynamics (动态) have much to do with how well kids sleep. Teens, who had warm relations with their parents and felt like they could talk to them or their parents were supportive of them, tended to sleep better. However, families that were going through a divorce or a remarriage tended to affect teens’ sleep.
And problems at school also affected teens’ sleep. Feeling safe at school and having good relations with teachers tended to promote better sleep. As did good relationships with friends. Kids who took part in sports or other positive social activities or shared similar academic goals with their friends were also more likely to get a good night’s sleep.
These add up to what makes lots of sense: a general feeling of well-being helps teens sleep. If we’re happy and contented, we’re much more likely to sleep better than if we’re sad and anxious.
Now, of course, teens can hardly resist being drawn to their computers and social networking. Maume also found that when parents were strict not only about bedtime, but also about limiting technology, kids slept better. It’s a finding that seems obvious, but parents really do matter when it comes to health habits of their teenagers.
Clearly, teenagers aren’t getting 9 to 10 hours a night, which puts them at risk for all the consequences of lack of sleep, including poor academic performance, colds and stress.
【小题1】What is the passage mainly about?
| A．Teens’ sleep is linked to their relationship with people around them. |
| B．Lack of adequate sleep puts teens at risk of many bad consequences. |
| C．Modern technology has something to do with teens’ sleep problems. |
| D．It is necessary for teens to join in sports and positive social activities. |
| A．Teens who feel like talking with their parents. |
| B．Teens who have friends sharing their dreams. |
| C．Teens who feel contented about themselves. |
| D．Teens who lack a sense of security at school. |
| A．a comparison | B．an introduction | C．a conclusion | D．an addition |
| A．continue their broken marriage |
| B．allow children to decide when to sleep |
| C．limit teens’ using new technology |
| D．force teens to have 10 hours’ sleep daily |
查看答案和解析>>
科目：高中英语 来源： 题型：阅读理解
Gene technology to benefit people
Among all the fast growing science and technology, the research of human genes, or biological engineering as people call it, is drawing more and more attention now. Sometimes it is a hot topic talked about by people.
The greatest thing that gene technology can do is to cure serious diseases that doctors at present can almost do nothing with, such as cancer and heart disease. Every year, millions of people are murdered by these two killers. And to date, doctors have not found an effective way to cure them. But if the gene technology is applied, not only can these two diseases be cured completely, bringing happiness and more living days to the patients, but also the great amount of money people spend on curing their diseases can be saved, therefore it benefits the economy as well. In addition, human life can be longer.
Gene technology can help people to give birth to more healthy and clever children. Some families, with the English imperial family being a good example, have hereditary (遗传的) diseases. This means their children will for sure have the family disease, which is a great trouble for these families. In the past, doctors could do nothing with hereditary diseases. But gene technology can solve this problem perfectly. The scientists just need to find the wrong gene and correct it, and a healthy child will be born.
Some people are worrying that the gene research can be used to make human beings in large quantities. In the past few years, scientists have succeeded in cloning babies will not come out in large quantities, for most couples in the world can have babies in very normal way. Of course, the governments must take care to control gene technology.
【小题1】What does “these two killers” in the second paragraph refer to?
| A．Gene technology and another treatment of the two diseases. |
| B．The two murderers who killed the cloned baby. |
| C．Hereditary disease and cancer. |
| D．Cancer and heart disease. |
| A．Using gene technology, a scientist finds the wrong gene and corrects it. |
| B．Using gene technology, people with hereditary diseases can live longer. |
| C．Using gene technology, human babies can also be cloned. |
| D．Doctors can cure cancer and heart disease with the help of gene technology. |
| A．Explaining that gene technology will also do great harm to human race. |
| B．Telling the readers the positive effects gene technology has on people’s life. |
| C．Expressing the writer’s idea that gene technology will benefit people. |
| D．Informing people that gene technology helps clone babies in large quantities. |
查看答案和解析>>
科目：高中英语 来源： 题型：阅读理解
The Healthy Habits Survey(调查)shows that only about one third of American seniors have correct habits. Here are some findings and expert advice.
1．How many times did you brush your teeth yesterday?
·Finding：A full 33% of seniors brush their teeth only once a day.
·Step：Remove the 300 types of bacteria in your mouth each morning with a battery－operated toothbrush. Brush gently for 2 minutes, at least twice a day.
2．How many times did you wash your hands or bathe yesterday?
·Finding：Seniors, on average, bathe fewer than 3 days a week. And nearly 30%wash their hands only 4 times a day—half of the number doctors recommend.
·Step：We touch our faces around 3,000 times a day－often inviting germs(病菌)to enter our mouth, nose, and eyes.Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds.
3．How often do you think about fighting germs?
·Finding：Seniors are not fighting germs as well as they should.
·Step：Be aware of germs. Do you know it is not your toilet but your kitchen sponge(海绵)that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds.
【小题1】What is found out about American seniors?
| A．Most of them have good habits. |
| B．Nearly 30%of them bathe three days a week. |
| C．All of them are fighting germs better than expected. |
| D．About one third of them brush their teeth only once a day. |
| A．twice a day | B．three times a day |
| C．four times a day | D．eight times a day |
| A．We should keep from touching our faces. |
| B．There are less than 300 types of bacteria in the mouth. |
| C．A kitchen sponge can carry more germs than a toilet. |
| D．We should wash our hands before touching a door handle. |
| A．a guide book | B．a popular magazine |
| C．a book review | D．an official document |
查看答案和解析>>
科目：高中英语 来源： 题型：阅读理解
Different exercise types have different purposes and different benefits. One type of exercise may not accomplish all goals of being physically fit: a healthy heart, strong muscles and bones, and safety from injury. As a result, it is important to do enough types of exercise to have all the physical benefits. Here is a quick check sheet.
Aerobic Exercise: To have a strong and healthy heart, you need to do aerobic exercise. This means that you need to exercise yourself enough so that your heart rate, while exercising, is 65 percent to 85 percent of your maximum heart rate. If you don’t get your heart rate up within this level—you just aren’t working hard enough. Whatever you do, your heart rate needs to be 65 percent to 85 percent of your MHR for 20 to 30 minutes, at least 3 times a week. Typical types include:
* Running
* Walking (at least 4 to 4.5 mph)
* Swimming
* Bikingk3s5u
* Elliptical Training
* Yoga
Strength Training: To keep your muscles and bones strong, you need to do strength training. This comes in a variety of forms. Whatever you do, however, you need to train your muscles enough so that they are really tired by the end of each session. To see real benefits, make sure you are strength training 2 to 3 times a week for about 30 to 40 minutes. Typical types of strength training include:
* Weight Training
* Yoga
* Resistance Training
* Plyometrics
Flexibility Training: To keep your body flexible, reducing risk of injuries and pain in your joints and muscles, you need to do flexibility training. You should always aim to stretch every muscle after any exercise routine. Typical types of flexibility training include:
* Stretching
* Yoga
* Pilates
So next time you think that yoga 5 times a week will be enough, think about what it is really doing. Is it getting your heart rate up? Are you making up your strength? Are you keeping your muscles flexible?
【小题1】If your purpose is to _______, you can choose swimming as your exercise form.
| A．keep muscles and bones strong |
| B．build a strong and healthy heart |
| C．keep body flexible |
| D．reduce risk of injuries and pain in joints and muscles |
| A．Yoga is really better for people than running |
| B．The three kinds of training have links with one another |
| C．Flexibility training helps you build up your muscles |
| D．The more exercise you do, the better |
| A．meeting | B．gathering | C．term | D．period |
| A．how to build up our strength |
| B．how to choose an exercise type |
| C．how to find a good workout dealing with two or three of these goals |
| D．how to be more flexible |
查看答案和解析>>
科目：高中英语 来源： 题型：阅读理解
Risk of death is 3.5 to 5 times greater for obese (肥胖的) smokers than it is for people who have never smoked and are at a normal weight, according to a study published in the November, 2006 issue of the American Journal of Preventive Medicine.
The study, which began with a self-administered questionnaire taken between 1983 and 1989, asked more than 80,000 radiologic technologists aged 22 to 92 questions about age, height, weight and smoking behavior.
BMI (body mass index) was calculated, with a BMI of 30 to 34.9 being considered obese, and 35 and over being very obese. Smoking behavior was analyzed by looking at a person's tobacco consumption level, number of years smoked, and current smoking status. Researchers then followed participants through December of 2002, noting the number of deaths that occurred.
The study involved researchers from the National Cancer Institute, the University of Minnesota and the American Registry of Radiolegic Technologists.
Key Findings:
20 percent of obese adults in the United States smoke.
Obese smokers face a greater risk of death from cancer and circulatory disease.
Current smoking is a greater risk factor for death by cancer than obesity is, generally speaking.
The higher a person's pack-years (number of packs smoked per day times the number of years smoked) are, the greater the risk of death.www.zxxk.com
Men and women of all ages faced an elevated risk of death due to circulatory disease as BMI increased. And for those who were both obese and currently smoking, risk of circulatory disease increased 6 to 11 times under the age of 65, as compared to their never-smoking, normal weight counterparts.
While it's not surprising that obesity coupled with smoking is a recipe for trouble, it is important to highlight this growing health concern in America today.
Taking Charge of Your Health
Making healthy choices can be difficult when we're constantly exposed to products that are dangerous to our health, but it's not impossible. With education and some motivation, we all have the ability to make lasting changes for the better. If you're an overweight smoker worried about gaining weight due to quitting, take heart. It's never too late to change your course and even reduce damage to some extent.
【小题1】60. What is the American Journal of Preventive Medicine?
| A．An medical institute. | B．A research center. |
| C．A medical magazine | D．A TV station |
| A．Obese smokers are less likely to suffer from cancer. |
| B．Obese smokers are more likely to suffer from cancer. |
| C．Obese smokers tend to gain fewer body mass index. |
| D．Obese smokers tend to get heavier than those who never smoke. |
| A．easy and possible | B．difficult and impossible |
| C．easy ant worthwhile | D．difficult but worthwhile |
| A．To inform the readers of the findings about obese smoking. |
| B．To warn the readers of the danger of obese smoking. |
| C．To tell us what obese smoking is. |
| D．To call on the obese smokers to quit smoking. |
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com