题目内容

Mark Ramirez, a senior executive at AOL, could work in the comfortable leather chair, if he wanted. No, thanks. He prefers to stand most of the day at a desk raised above stomach level.
“I’ve got my knees bent. I feel totally alive,” he said. “It feels more natural to stand.”
In the past few years, standing has become the new sitting for 10 percent of AOL employees at the firm’s Virginia branch. Part of a standing popularity is among accountants, programmers, telemarketers and other office workers across the nation.
GeekDesk, a California firm that sells desks raised by electric motors, says sales will triple this year.
Standers give various reasons for taking to their feet: It makes them feel more focused, prevents drowsiness(困倦睡意), and makes them feel like a general even if they just push paper. (Former Defense Secretary Donald Rumsfels works standing up. So does novelist Philip Roth.)
But unknown to them, a debate (辩论) is spreading among ergonomics experts(人类工程学家) and public-health researchers about whether all office workers should be encouraged to stand—to save lives.
Doctors point to surprising new research showing higher rates of diabetes, obesity, heart disease and even mortality among people who sit for long stretches. A study earlier this year in the American Journal of Epidemiology showed that among 123,000 adults followed over 14 years, those who sat more than six hours a day were at least 18 percent more likely to die during the time period studied than those who sat less than three hours a day.
“Every rock we turn over when it comes to sitting is astonishing,” said Marc Hamilton, a leading researcher on inactivity physiology at the Pennington Biomedical Research Center in Louisiana. “Sitting is harmful. It’s dangerous. We are on the cusp (尖端) of a major revolution.” He calls sitting “the new smoking”.
Not so fast, other experts say. Standing too much at work will cause more long-term back injuries. Incidences of varicose veins(静脉曲张) among women will increase. The heart will have to pump more.
Hedge, the Cornell professor, isn’t a fan of all this standing. “Making people stand all day is dumb,” he said.
The sensible and most cost-effective strategy(策略), he said, is to sit in a neutral posture(姿势), slightly reclined(下弯的), with the keyboard on a tray above the lap. This position promotes positive blood flow. Workers should occasionally walk around, stretch and avoid prolonged periods at the desk. The key, he said, is movement, not standing.
小题1:Marc Hamilton said “Every rock we turn over when it comes to sitting is astonishing” to show that________.
A.the result of the study about sitting too long is shocking
B.we need to remove many rocks
C.we need to smooth away many difficulties
D.sitting on a rock is necessary
小题2: The following are the reasons why some experts are against standing too long except      .
A.It will cause more long-term back injuries
B.it will raise the burden of heart
C.incidences of varicose veins among women will increase
D.standing too much at work per day is too tiring
小题3: According to the studies in the passage mentioned,      .
A.it is better not to stand more than 6 hours
B.sitting too long can arouse illnesses easily
C.sitting long is specially harmful to adults
D.standing much is better than sitting long
小题4:Which of the following is the best title of the passage?
A.Standing is not better than sitting
B.Standing more does no harm to people
C.Standing will promote the efficiency
D.More office workers take standing against sitting

小题1:A
小题2:D
小题3:B
小题4:D

试题分析:
小题1:.A 推理题。根据上一段最后among 123,000 adults followed over 14 years, those who sat more than six hours a day were at least 18 percent more likely to die during the time period studied than those who sat less than three hours a day.说明该句指这种研究的结果是让人惊讶的。故A正确。
小题2:D 细节题。根据倒数第三段Standing too much at work will cause more long-term back injuries. Incidences of varicose veins(静脉曲张) among women will increase. The heart will have to pump more.说明ABC三项都是长时间站立导致的结果,D项没有提及。故D符合题意。
小题3:B 细节题。根据倒数第五段第一行Doctors point to surprising new research showing higher rates of diabetes, obesity, heart disease and even mortality among people who sit for long stretches.说明坐太多对人的健康有很大的影响。故B正确。
小题4:.D 主旨大意题。本文主要讲述的是很多坐办公室的人都不喜欢长时间坐在那里,因为长时间的坐,会带来很多疾病和消极的影响。故D正确。
点评:本文主要讲述的是很多坐办公室的人都不喜欢长时间坐在那里,因为长时间的坐,会带来很多疾病和消极的影响
练习册系列答案
相关题目
In the past, man did not have to think about the protection of his environment.  There were few people on the earth,  and natural resources(资源) seemed to be    26 .
Today things are 27 , the world has become too   28  . We are using up our natural resources too quickly, and at the same time we are  29 our environment with dangerous chemicals. If we continue to do this,  human life on the earth will not   30 .
Everyone 31 today that if too many fish are taken from the sea, there will soon be none left.  Yet, with modern fishing  32  , more and more fish are caught.  We know that if too many trees are cut down,  33 will disappear and nothing will grow on the land. Yet, we  34 to use bigger and more powerful machines to 35 more and more trees.
We realize that if rivers are polluted with waste products from factories, we will die. ___36,   in most countries wastes are 37  put into rivers or into the sea, and there are 38  laws to stop this. We know, too, that if the   39 of the world continues to rise at the present rate, in a few years there will not be enough food. What can we do to  40 these problems ?
If we eat more vegetables and less   41 , there will be more food available for everyone.  Land that is used to grow crops   42 five times more people than land where animals are kept.  Our natural resources will  43 longer if we learn to recycle them.  The world population will not rise so quickly if people use modern methods of birth 44   .
Finally, if we educate people to think about the problems, we shall have a better and cleaner     45  in the future.
小题1:
A.beautifulB.unlimitedC.rareD.valuable
小题2:
A.commonB.the sameC.changeableD.different
小题3:
A.crowdedB.smallC.dirtyD.busy
小题4:
A.protectingB.savingC.pollutingD.fighting
小题5:
A.breatheB.surviveC.drinkD.move
小题6:
A.wondersB.realizesC.considersD.discovers
小题7:
A.polesB.boatsC.methodsD.ideas
小题8:
A.mountainsB.the seaC.treesD.forests
小题9:
A.continueB.stopC.keepD.go on
小题10:
A.growB.plantC.saveD.cut down
小题11:
A.ThusB.HoweverC.ButD.Therefore
小题12:
A.stillB.evenC.alsoD.certainly
小题13:
A.too manyB.a fewC.someD.few
小题14:
A.productionB.pollutionC.population D.pronunciation
小题15:
A.workB.dealC.solveD.serve
小题16:
A.fruitB.meatC.fishD.grain
小题17:
A.feedsB.increasesC.suppliesD.helps
小题18:
A.useB.stayC.keepD.last
小题19:
A.controlB.bornC.planD.reward
小题20:
A.natureB.seaC.planetD.forest
(共5小题;每小题2分,满分10分)
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
It is your skin that keeps your insides from falling out. It helps you warm up when you are cold, and it can cool you off when you are hot. It lets you feel things by touch.
Like the heart, stomach and brain, your skin is an organ. In fact, it is the largest organ in your body. But it is still easy to take skin for granted.  1  But skin has an important job to do.
Your skin is constantly protecting you.   2  When you take care of your skin, you are helping your skin do its job. And taking care of your skin today will help prevent future problems, like wrinkles(皱纹) and even skin cancer.
3   Keeping your hands clean all the time is especially important because they can spread germs(细菌) to the skin on other parts of your body.
4   Cold or hot water may hurt your skin. Wet your hands, then lather up with a mild  soap (香皂). You should rub everywhere, including the palms, the wrists and the nails. Wash them well, dry thoroughly with a clean towel and you’re done.
You'll also want to use warm water when you take a bath. Use soap to clean your body. Don't forget under your arms and behind your ears! Your face needs attention, especially as you enter puberty(青春期) and the skin on your face gets more oily.  5 
A.One simple way to take care of your skin is to keep it clean.
B.It is a good habit to wash your hands before and after meals.
C.When washing your hands, use water that’s comfortably warm.
D.It keeps infections out of your body and keeps you from getting sick.
E.     Unless there’s a problem, your may not think about your skin very much.
F.     Your skin plays a more important role in keeping you healthy during your puberty.
G.    It’s a good idea to wash your face once or twice daily with warm water and a mild soap.
A little stress is good, since it helps you keep motivated to meet your goals. However, too much stress is bad for your health. Stress needs to be managed in order to prevent anxiety (焦虑). Here are some tips on how to manage stress.
Write it out
Write down everything that seems stressful, and ways to deal with each problem. You’ll find a things-to-do list much easier to manage than having all messed up in your head. Write down the tasks along with the specific times when you can do them.
One task at a time
Give each task all your attention while you’re doing it, and forget the rest. This will keep you from feeling anxious about things you have left to do. Thinking about other tasks only adds unnecessary stress, and can even stop you from doing the task you’re busy with at present. You don’t need to do everything all at once, or on your own. The feeling of being pressed to finish something on time will somehow disappear if someone is there to help you.
Give yourself a reward
Rewarding yourself for what you’ve already done, no matter how small, is a great way to motivate yourself to keep going. It will reduce stress, and make you happier to go on with the next task.
Give yourself a break
Breaks of ten to fifteen minutes are important. Visit a cafe or take a quick walk —anything to take your mind off the work for a while. If you need to stay at work, sit with your eyes closed and imagine a peaceful place or some other relaxing scenes. This will remove the stress from your muscles and mind.
小题1:The best title for the passage would probably be _____.
A.Stress Is Good or Not
B.How to Form Good Working Habits
C.Tips on How to Manage Stress
D.Ways to Keep Healthy
小题2:According to the passage, which of the following is NOT true?
A.It’s better to plan a specific time to do the task.
B.It helps you stay motivated to think about the undone tasks.
C.It’s unnecessary for you to do all the tasks by yourself.
D.It helps if you put your attention to one task at a time.
小题3:Which of the following would the author agree?
A.The more stress you have, the more motivated you will be.
B.Writing down everything seems impossible.
C.Only reward yourself for your biggest achievements in your work.
D.It is necessary to have a break during your work.
小题4:What can we learn from the passage?
A.Stress is always bad for people.
B.Imagining a relaxing scene may help.
C.The best way to relax is by rewarding yourself.
D.Finishing tasks on time reduces stress.

Vitamin D helps bones and muscles grow strong and healthy. Low levels of vitamin D can lead to diseases such as rickets (佝偻病), mainly found in children. The thinning of bone is a common problem as people, especially women, get older.
But more and more research is suggesting that vitamin D might also help prevent many diseases. The easiest way to get vitamin D is from sunlight. The sun’s ultraviolet (紫外线的) rays react with skin cells to produce vitamin D. But many people worry about getting skin cancer and skin damage from the sun. As a result they stay out of the sun. Also, darker-skinned people produce less vitamin D than lighter-skinned people. The amount also decreases in older people and those living in northern areas that get less sunlight.
Not many foods naturally contain vitamin D. Foods high in this vitamin include oily fish and fish liveroils (鱼肝油). Farmed fish have only about one-fourth as much vitamin D as wild fish. Small amounts of vitamin D are found in beef liver, cheese and egg yolks. But most of the vitamin D in the American diet comes from foods such as milk.
Research in the last several years has shown that low levels of vitamin D may increase the risk of heart attacks in men and deaths from some cancers. More doctors are now having their patients tested for their vitamin D levels. But as research continues, some experts worry that if people take too much vitamin D, it might act as a poison. Also, skin doctors warn people to be careful with sun exposure because of the risk of skin cancer.
小题1:The first paragraph is mainly about     .
A.the muscle diseasesB.the sources of vitamins
C.the importance of healthD.the functions of vitamin D
小题2:Which of the following people produce the least amount of vitamin D?______
A.Elderly darker-skinned people.B.Young lighter-skinned people.
C.Elderly lighter-skinned people.D.Young darker-skinned people.
小题3: People can get the most vitamin D from     .
A.beef liverB.cheeseC.wild fishD.farmed fish
小题4:What can we infer from the text?_________
A. Being exposed to sunlight is the safest way to get vitamin D.
B. Lack of vitamin D can make people age quickly.
C. Proper vitamin D levels people need are still not determined now.
D. The vitamin D level is higher in men than in women.
Generations of Americans have been brought up to believe that a good breakfast is essential to one's life. Eating breakfast at the start of the day, we have been told, and told again, is as necessary as putting gasoline in the family car before starting a trip.
But for many people, the thought of food as the first thing in the morning is never a pleasure. So in spite of all the efforts, they still take no breakfast. Between 1977 and 1983, the latest year for which figures could be obtained, the number of people who didn’t have breakfast increased by 33%—from 8.8 million to 11.7 million—according to the Chicago-based Market Research Corporation of America.
For those who dislike eating breakfast, however, there is some good news. Several studies in the last few years have shown that, for grown-ups especially, there may be nothing wrong with omitting breakfast. “Going without breakfast does not affect work,” said Arnold E. Bender, former professor of nutrition at Queen Elizabeth College in London, “nor does giving people breakfast improve work.”
Scientific evidence linking breakfast to better health or better work is surprisingly inadequate, and most of the recent work involves children, not grown-ups. “The literature,” says one researcher,  Dr Earnest Polite at the University of Texas, “is poor.”
小题1:The main idea of the passage is that _______.
A.breakfast has nothing to do with people's health
B.a good breakfast used to be important to us
C.breakfast is not as important to us as gasoline to a car
D.breakfast is not as important as we thought before
小题2:For those who do not take breakfast, the good news is that _______.
A.several studies have been done in the past few years
B.the omission of breakfast has little effect on one’s work
C.grown-ups have especially made studies in this field
D.eating little in the morning is good for health
小题3:The underlined part “nor does giving people breakfast improve work” means  _______.
A.people without breakfast can improve their work
B.not giving people breakfast improves work
C.having breakfast does not improve work, either
D.people having breakfast do improve their work, too
小题4:The word "literature" in the last sentence refers to _______.
A.stories, poems, play, etc
B.written works on a particular subject
C.newspaper articles
D.the modern literature of America
小题5:What is implied but not stated by the author is that _______.
A.breakfast does not affect work
B.Dr Polite works at an institution of higher learning
C.not eating breakfast might affect the health of children
D.Professor Bender once taught college courses in nutrition in London
For many years, I had a belief that my suffering was due to my size. I believed that when the weight disappeared, it would take old wounds, hurts, and rejections with it.
Many weight-conscious people also mistakenly believe that changing our bodies will fix everything. Perhaps our worst mistake is believing that being thin equals being loved,being special, and being cherished. We fantasize(幻想) about what it will be like when we reach the long-awaited goal. We work very hard to realize this dream. Then, at last, we find ourselves there.
But we often gain back what we have lost. Even so, we continue to believe that next time it will be different. Next time, we will keep it off. Next time, being thin will finally fulfill its promise of everlasting happiness, self-worth, and, of course, love.
It took me a long while to realize that there was something more for me to learn about beauty. Beauty standards vary with culture. In Samoa a woman is not considered attractive unless she weighs more than 200 pounds. More importantly, if it’s happiness that we want, why not put our energy there rather than on the size of our body? Why not look inside? Many of us strive hard to change our body, but in vain. We have to find a way to live comfortably inside our body and make friends with and cherish ourselves. When we change our attitudes toward ourselves, the whole world changes.
小题1:The passage tries to highlight the importance of ________.
A.body size
B.attitudes toward life
C.culture difference
D.different beauty standards
小题2:What does the word “everything” in paragraph 2 mean?
A.All the problems.B.All the properties.
C.The whole world.D.The absolute truth.
小题3:What can be inferred about the author?
A.The author is a Samoan.
B.The author succeeded in losing weight.
C.The author has been troubled by her/ his weight.
D.The author probably got wounded in wars or accidents.
小题4:According to the author, what is the common view of those who have lost some weight first and gained it back later?
A.They feel angry about the regained weight.
B.They are indifferent to the regained weight.
C.They feel optimistic(乐观的) about future plans on weight control.
D.They think they should give up their future plans on weight control.
Children of America are getting fatter every time. 13% of the children at the age of 6 to 11 are overweight(too fat).
When we look at children's lives today in the USA, we can see the root(origin)of the problem--sports and foods. Young children like sports but they don't have enough around the start of high school. That's especially true for girls. Meanwhile, to make matters worse, schools are becoming much more interested in sports teams. So children are not able to get enough exercise just when they need it the most. There is also the food problem. Children get most of their calories(热量) at restaurants or parties or somewhere else away from home. They often drink too many Cokes. Parents have a lot of fears about telling a child he needs to lose weight-- they are afraid it will push a child into an eating disorder. Some parents fear that pushing children to lose weight means their children will think they're not good enough, or not loved because of their weight. Parents need to come to terms with the fact that the family is very important to the children. The most useful program for children is called "family weight control". This is good news. Mom and Dad, even if they don't have weight problems, have to go through the same program as their children and learn how to get some exercise and how to eat healthily.                                                                      
小题1:Why are American children getting fatter? The writer thinks_______.
A.parents also have weight problem as their children
B.children drink too many Cokes
C.schools are more interested in sports teams
D.children have less exercise and eat unhealthily
小题2:The writer wants to tell parents that_______.
A.overweight children are not loved by people
B.children are afraid to lose weight when they have to
C.family members can help overweight children a lot
D.girls don't like to exercise
小题3:Which of the following is NOT the root of overweight problem? _______.
A.Higher-calorie.B.Less sports.
C.Family weight control.D.higher-fat foods.
小题4:The writer thinks if mother or father is on the same program as their children, _______.
A."family weight control" will be successful
B.it will make the children eat much more
C.their children will not eat better
D.parents will feel sorry about themselves
When I was small and my grandmother died, I couldn't understand why I had no tears. But that night when my dad tried to cheer me up, my laughs turned into crying.
So it came as no surprise to learn that researchers believe crying and laughing are controlled by the same part of the brain. Just as laughing has many health advantages, scientists are discovering that so does crying.
Whatever helps us to reduce pressure is important to our emotional health, and crying seems to work well. One study found that 85 percent of women and 73 percent of men report feeling better after crying.
Besides, tears attract help from other people. Researchers agree that when we cry, people around us become kinder and friendlier and they are more ready to provide support and comfort. Tears also enable us to understand our emotions better; sometimes we don't even know we're very sad until we cry. We learn about our emotions through crying, and then we can deal with them.
Just as crying can be healthy, not crying---holding back tears of anger, pain or suffering---can be bad for physical health. Studies have shown that too much control of emotions can 1ead to high blood pressure, heart problems and some other illness. If you have a health problem, doctors will certainly not ask you to cry. But when you feel like crying, don't fight it. It's a natural, healthy and emotional response.
小题1:Why didn't the author cry when her grandmother died?
A.Because her father did not want her to feel too sad.
B.Because she did not love her grandmother.
C.Because she was too shy to cry at that time.
D.The author doesn't give the explanation.
小题2:It can be inferred from the text that _______________________.
A.there are two ways to keep healthy
B.emotional health has a close relationship to physical health
C.crying and laughing play the same roles
D.crying does more good to health than laughing
小题3:According to the author, which of the following statements is true?
A.Crying is the best way to get help from others.
B.Fighting back tears may cause some health problems.
C.We will never know our deep feelings unless we cry.
D.We must cry if we want to reduce pressure
小题4:What might be the most suitable title for the text?
A.Why We CryB.How to Keep Healthy
C.Power of TearsD.New Scientific Discovery
小题5:What is the author's attitude to "crying"?
A.Positive.B.Negative.C.Touched.D.Upset.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网