Childhood obesity puts kids at risk for cardi...

Childhood obesity puts kids at risk for cardiovascular disease, bone and joint problems, sleep apnea, and potential social and psychological problems. 1.

Of course, the CDC recommends healthy lifestyle choices—healthy eating, physical exercise. 2. That is to provide a safe and supportive environment where healthy lifestyle choices can be made.

What don't kids need?3.Too much focus on overweight leads toward more weight gain.

A new data analysis of two studies found that children whose parents considered them to be “overweight" tended to gain more weight over 10 years than children whose parents considered them “normal weight". Children whose parents label them as “overweight" had a negative self-perception about their bodies. They were engaged in more attempts to lose weight. 4.

The clear message from this study is that dieting is more likely to lead to weight gain, not weight loss, in both children and adults. Psychology researchers Eric Robinson and Angelina Sutin argue that the stigma of being labeled overweight as a child might actually gain weight in the future.

5. For the study, children's height and weight were measured at age 4 or 5, and parents were asked to describe whether they thought the children were best described as underweight, normal weight, overweight or very overweight. When the children were 12 or 13, they used images to best depict what they perceived their bodies to look like and were asked whether or not they engaged in any dieting behavior. Height and weight measurements were taken again when the children were 14 or 15 years old.

A.Labels and pressure around weight and weight gain.

B.Left untreated, these problems can continue into adulthood.

C.They also point out another important way to keep kids healthy.

D.The researchers cannot be certain about what is driving.

E.They analyzed the data from a study of Australian children.

F.But it actually contributed to weight gain over the 10-year period.

G.A number of mothers in this study suffer from depression and anxiety.

高三英语七选五中等难度题查看答案及解析

Last week the American Medical Association voted, for the first time, to declare obesity(肥胖) a disease. How should the rest of us respond? When we meet obese people, should we cast them a knowing glance of concern and ask how they are doing? Should we send flowers and “get well soon” cards to obese family members and friends?

Should the U.S. declare war on obesity, as we once did on cancer?

If obesity truly is a disease, then over 78 million adults and 12 million children in America just got classified as sick. Yet many sensible people know that declaring obesity a disease is a mistake. Simply put, obesity is not a disease. To be sure, it is a risk factor for some diseases.

Yet everyone who is obese does not get sick, and many normal-weight people do not stay healthy. I have known slim people who took good care of themselves throughout their lives yet fell ill and died young. Others who exhibited no particular interest in their health and did not watch their weight lived to an old age. In most cases, we simply cannot tell from a person’s weight what lies ahead for them in life. Consider Winston Churchill. Though average in height, Churchill weighed up to 250 pounds. He smoked cigars and drank relatively heavily. He did not work out. Yet he became perhaps the most important statesmen of the 20th century and one of the greatest politicians in history. He lived to age 90.

Is obesity bad for people? For some, especially patients who are extremely overweight, the answer is almost certainly yes. Would many overweight people benefit from exercising more and eating less? Again, the answer is likely yes. But this does not make obesity a disease. Many people are not harmed by carrying extra pounds, some may actually benefit from it. For these reasons, we should be careful before labeling obese people diseased.

1.What can we learn from the third paragraph ?

A. Over 90 million Americans are more or less overweight.

B. People with good sense would agree with the declaration.

C. More Americans suffer from obesity than any other diseases.

D. Obesity is the leading cause of most deadly diseases.

2.By mentioning Winston Churchill, the author wants to ________.

A. tell us slim people are more likely to die young

B. show how successful an overweight person can be

C. prove overweight people are not necessarily unhealthy

D. encourage people not to care much about their way of living

3.What is the author’s attitude towards the American Medical Association’s declaration on obesity?

A. Favorable　 　　　 B. Uncaring

C. Disapproving　　 D. Friendly

4.Where can we probably find the text?

A. A government report

B. A popular science magazine

C. A website about losing weight

D. A book about famous people

高三英语阅读理解中等难度题查看答案及解析

Risk of death is 3.5 t0 5 times greater for obese 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 t0 92 questions about age, height, weight and smoking behavior.

BMI (body mass index) was calculated, with a BMI of 30 t0 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.

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 bombarded with products that are hazardous 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 reverse damage to some extent.

1.What is the probably the best title of the text?

A. Obese smoking and death             B. Key findings about smoking

C Taking charge of your health           D. Obesity and smoking

2.Which of the following is true according to the text?

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

3.According to the  author, it is________to get rid of smoking.

A. easy and possible                     B. difficult and impossible

C. easy ant worthwhile                   D. difficult but worthwhile

4. What is the American Journal of Preventive Medicine?

A. An medical institute.                   B A research center.

C. A medical magazine                    D. A TV station

5. What is the purpose of the text?

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 smolkers to quit smoking.

高三英语阅读理解中等难度题查看答案及解析

High-sugar diets raise risks for heart disease, obesity and diabetes, but we do love our sweets, so health experts have tried to suggest alternatives, and honey has been foremost among them.

Honey is actually sweeter than sugar is , which means, in theory at least, that you could enhance flavor equally with a smaller quantity of honey. But honey actually has a higher calorie count. It may have more minerals, which looks better on a label but, in reality, these are such trace amounts that they don’t offer any real advantages.

Honey’s reputation as a medicine is not wholly unfounded. Some honey does indeed have antibacterial properties. One byproduct of enzymes in honey is hydrogen peroxide, a powerful germ killer. Plus, honey’s texture and consistency are good for keeping wounds clean, and bad for bugs that might want to infect them. Honey is moist and its gooey consistency mean it can easily spread over and stay over wounds while keeping the tissue from becoming dry and fragile. The sticky substance means bacteria can not accumulate and multiply easily. It is particularly well-known for fighting bacteria like staph, salmonella, E. Coliand certain bacteria that can infect the gut and cause ulcers.

However, scientists can only say this for sure about Makuna and Malaysian Tualang honey. We don’t know yet whether local home grown honey has the same potency-or safety. A hot cup of tea with some honey stirred in certainly sounds like it would make you feel better. But it’s difficult to say for sure that it will.

When you have a cold, contact with warm water (from tea) may help to bust up phlegm(痰）that blocks your airways. But some suspect the real secret to the qualities of a cuppa is in the honey. There are studies that suggest that honey does work as well or better than cough suppressant（抑制性的）drugs like Robitussin.

Most of these, however, were considered by the academic world to be widely misinterpreted by the media. One of the findings that seemed to have given the honey trend some additional legs came from a study that said there was “no difference”, statistically speaking, between honey and one particular cough suppressant.

1.What can we learn from the passage?

A. Honey has more minerals than sugar.

B. Honey can be used to treat wounds.

C. The sweetness in honey can fight bacteria.

D. All kinds of honey can act as medicines.

2.What is the author's attitude when it comes to the functions of honey?

A. Objective　　 B. Critical

C. Supportive　　 D. Skeptical

3.What might be talked about next?

A. Honey will be widely used in other fields.

B. Honey will not be recommended in medical treatment any more.

C. Other studies showed honey worked better than some cough medicines.

D. Other studies showed neither honey nor some cough medicines functioned well.

高三英语阅读理解中等难度题查看答案及解析

Obesity is a growing problem for both kids and adults around the world. Sleep might be one answer 1. the problem. A new study 2.(find) that elementary school students who sleep little are more likely to gain pounds. Past studies have shown a link between sleeping less and weighing more, but scientists have had difficulty 3.(determine) “4. came first, the chicken or the egg?” says Julie Lumeng of the University of Michigan in Ann Arbor. In other words, it hasn’t been clear whether kids who weigh too much have trouble sleeping,5. whether sleeping less leads to weight gain. Both scenarios seemed 6.(equal) possible. To get a 7.(good) understanding of which causes which, Lumeng and her colleagues interviewed the parents of 785 third graders from around the States. The parents answered questions designed by Lumeng and her team about how well their kids　 8.(sleep) that year. They had no sooner finished the survey by asking the parents the same questions three years later 9. they found that 18 percent of kids 10.(involve)in the study were obese.

高三英语语法填空中等难度题查看答案及解析

Weighing too much can damage your health,and obesity is a growing problem for both kids and adults around the world.Sleep might be one answer to the problem.A new study has found that elementary school students who slept too little were more likely to gain pounds.　

Past studies have shown a link between sleeping less and weighing more,but scientists have had a tough time determining "which came first,the chicken or the egg," says Julie C. Lumeng of the university of Michigan in Ann Arbor.In other words,it hasn't been clear whether kids who weigh too much have trouble sleeping,or whether sleeping less leads to weight gain.Both scenarios (可能出现的情况) seemed equally possible.

To get a better idea of which causes which,Lumeng and her colleagues interviewed the parents of 785 third graders from around the United States.The parents　 answered questions about how well their kids slept that year.Three years later,the parents answered the same questions.By sixth grade ,18percent of kids involved in the study were obese.

The scientists found no relationship between weight and the students' race or gender.It also didn't matter how strict their parents were,or whether they were boys orgirls.Obesity struck all of these groups equally.Instead,sleep seemed to be the key factor.Over the three years of study,the children averaged a healthy 9.5 hours of sleepa night.Some kids,however,slept a lot moreor less than others.

For the sixth graders,every hour of sleep above the 9.5houraverage was linked toa 20 percent lower risk of being obese.Sleep appeared doubly important for the third graders.Every extra hour of sleep they got was linked to a 40 percent drop in obesity.

1.What does the underlined sentence on paragraph 2 imply?

A. Scientists have found the exact causes of children's obesity.

B. There is always something difficult to understand through theory

C. The cause–effect relationship between weight and sleep isn't clear.

D. A person's weight has something to do with the amount of his sleep.

2.What did the interview find out?

A. 9.5 hours of sleep a night is enough for children.

B. The more a child sleeps,the healthier he will be.

C. Sixth graders need much more sleep than third graders.

D. One’s race or gender has nothing to do with his weight.

3.How does the author develop the passage?

A. By listing figures　　 B. By comparing different opinions

C. By providing examples　　 D. By conducting a survey

4.What is the suitable title for the passage?

A. The benefits of enough sleep for children

B. Sleeping less increases the risk of obesity

C. Which comes first,little sleep or obesity

D. How many hours of sleep do children need?

高三英语阅读理解中等难度题查看答案及解析

Experts note that an unhealthy lifestyle can put you at great risk of heart disease and stroke. So doctors urge us to eat healthy foods, get exercise, stop smoking and limit our alcohol intake. But there is something else you can do. And it is free and easy. Smile!

Dr. Chockalingam, a heart disease specialist in Columbia, advises his patients to smile. He says a smile may be one way to help your heart. “When we smile, the brain wiring changes. The chemicals that are released are more positive.” He says smiling is the first step in fighting physical and emotional stress and its sometimes harmful effects on human health. This is not just New Age advice. Several studies support his opinion.

When you feel stressed or under pressure, your body releases many natural hormones (荷尔蒙) including adrenaline and cortisol. Adrenaline increases your heart rate and blood pressure. Cortisol is the body’s main stress hormone. It increases sugar in the bloodstream. If you are truly in danger, these hormones can help you. They are part of what we call our fight-or-flight response.

However, when we are stressed for a long period, these stress hormones are ever-present in our bodies. And that, medical researchers warn, may lead to health problems.

Researchers say the connection between stress and heart disease is still unclear. However, they claim that when people are stressed for long periods of time, they may have an unhealthy lifestyle, which can lead to health problems.

Dr. Chockalingam says a smile may be one way to help. He tells his patients to smile 20 times an hour. To some, that might seem like a lot of smiling. Or some might even feel foolish ... smiling for seemingly no reason. But a smile does not involve drugs. It is not invasive like a surgical operation. It is free and it has no bad side effects.

“Once people smile, they are relaxing. This relaxation directly lowers blood pressure, improves sugar levels in the blood. If we are smiling, we are breaking that link between stress and health.” And it just may provide a little extra protection to everyone’s heart health.

1.Which of the following agrees with Dr. Chockalingam’s opinion?

A.Smile has the same effects as laughter.

B.Smile can be used to take the place of medicine.

C.Smile is better than any healthy lifestyle to health.

D.Smile can make our body produce beneficial chemicals.

2.What can we know about the mentioned stress hormones?

A.They can lower our blood pressure.

B.They will surely lead to heart diseases.

C.They can benefit us when we are in danger.

D.They will make us live an unhealthy lifestyle.

3.Why does Dr. Chockalingam think smiling is helpful to our health?

A.It can make us relax. B.It increases sugar levels.

C.It has little bad side effects. D.It can happen for no reason.

4.What can be the best title for the text?

A.A Thorough Analysis of the Causes of Heart Diseases

B.One Thing You Can Do Right Now to Help Your Heart

C.One Thing That Is Closely Connected with Stress Hormones

D.The Clear Connection Between Unhealthy Lifestyles and Heart Diseases

高三英语阅读理解中等难度题查看答案及解析

Millions of teenagers are in danger of putting their health at risk by getting hooked on e-cigarettes, experts warn. Leading health researchers say they are “very concerned” by the growing number of youngsters trying the devices.

E­cigarettes have been marketed as a healthier alternative to smoking conventional cigarettes. But previous research shows e­cigarettes generate poisonous chemicals similar to those found in tobacco and may harm the lungs and immune system.

Worryingly, researchers at Liverpool University discovered 16% of teenagers who have used e­cigarettes had never previously smoked. The experts also found e­cigarettes were “strongly related” to drinking among teenagers. Study author Prof. Mark Bellis said, “Our research suggests that we should be very concerned about teenagers accessing e­cigarettes. While debate on e­cigarettes has focused largely on whether or not they act as a gateway to tobacco cigarette use, e­cigarettes themselves contain a highly addictive drug that may have more serious and longer lasting impacts on children because their brains are still developing.”

Researchers surveyed 16,000 students aged 14 to 17 in the North West of England and asked them about their alcohol and tobacco use. They found that one in five answered yes to the question: “Have you ever bought or tried electronic cigarettes?” More males than females said they had.

Of the teenagers that had accessed e­cigarettes, 16% had never smoked, 23% had tried smoking, 12% only smoked when drinking, and 14% were ex­smokers. The research also found teenagers who drank alcohol were significantly more likely to have accessed e­cigarettes than non­drinkers.

Among those who had never smoked, it was found that those who regularly have excessive(过多的)drinking were four times more likely to access e­cigarettes than those who never drink. In all of those that drink, regardless of smoking status, e­cigarette access was associated with excessive drinking and involvement with violence after drinking. The researchers said their findings suggest that teenagers who use e­cigarettes are most susceptible to other forms of substance use and risk­taking behaviors.

1.How have e­cigarettes been promoted in the market?

A. As a healthier substitute for traditional cigarettes.

B. As a device meeting the mental needs of smokers.

C. As a product preventing smokers from using tobacco products.

D. As a new device promoted among youngsters.

2.What do we learn from the survey made in the North West of England?

A. E-cigarettes are now widely available and heavily promoted.

B. E­cigarette access is linked to excessive drinking and violence after it.

C. Teenagers are very knowledgeable about alcohol and tobacco use.

D. The number of adult cigarette smokers is dropping at present.

3.Which of the following can replace the underlined words “susceptible to” in the last paragraph?

A. greatly interested in

B. commonly accustomed to

C. deeply disappointed at

D. easily influenced by

4.What's the main idea of the passage?

A. Experts are concerned about excessive drinking in teenagers.

B. The harm of the e­cigarettes is greater than that of alcohol.

C. Teenagers are in danger of risking their health on e­cigarettes.

D. Researchers are aware of smoke­related health harm.

高三英语阅读理解困难题查看答案及解析

Feeding birds is a popular way to watch wildlife.But experts say it might put wild birds at risk.

Feeding birds is not necessary for their survival except in extreme weather conditions.Feeders(喂食器)can definitely help birds get through that kind of weather.But most birds eat insects and show little interest in bird feeders.For those birds，we can grow native plants in a natural environment.Birds which are fond of eating seeds will be more likely to come to feeders if there is some cover nearby.This lets them feed and then fly to protective areas，such as in trees.

The most common mistake people make with their bird feeders is that they put feeders in places where birds are easily frightened by passers-by，risk being hurt by cats，or risk flying into windows.

So set up a bird feeder at least one meter away from a window.That way，if a bird gets frightened，it won’t get killed when it hits the glass.Owners of cats should keep them inside home so they can’t hurt the birds.

Some birds are more aggressive at feeders.They eat a lot and do not leave much food for other birds.A solution is to put the food in more than one place by using different kinds of seeds or fruits.This can also increase the number and diversity of birds in your neighborhood.But don’t feed wild birds anything salty，like potato chips，or food that could choke them，like bread.

Pay attention to food quality and freshness.Unprotected food left too long in feeders will turn moldy(发霉)，which can kill wildlife.

Another word of advice:Always provide a supply of clean water for birds，but use care when looking for the right birdbath.If the birdbaths are too deep for birds，putting a few large stones in the water can give the birds a place to sit.

1.What’s the most common mistake about feeding birds?

A. Putting feeders in improper places. B. Providing food in inappropriate time.

C. Leaving feeders unprotected. D. Supplying dirty and deep water.

2.Which of the following may not be suitable for feeding birds?

A. Seeds. B. Bread. C. Fruit. D. Insects.

3.The author advises helping more birds by_________.

A. increasing the number of feeders

B. cleaning the birds with clean water

C. putting more large stones in the feeders

D. keeping aggressive birds away from the feeders

4.What is the text mainly about?

A. Problems with bird feeding.

B. Where to place bird feeders.

C. Popular ways of protecting wild birds.

D. How to feed wild birds safely and healthily.

高三英语阅读理解中等难度题查看答案及解析

People who are slightly overweight or mildly obese(肥胖的) have a lower risk of early death than normal weight individuals(个人;个体), according to a new analysis of nearly 100 international studies.

The studies, most conducted within the past decade, included about three million adults from around the world. The result of these studies by researchers at the National Center for Health Statistics in Maryland, part of the U.S. Centers for Disease Control and Prevention, shows that slightly overweight or obese people were six percent less likely to die from all causes compared to people of normal weight. But the researchers found that seriously obese individuals were still at a 30 percent greater risk of death compared to healthy-weight individuals.

Study lead author Katherine Flegal says she was not surprised that overweight people would not have a higher death risk. “Because we'd actually already read a lot of this literature and realized that death rates for overweight would be at least not higher than normal[weight," she said. “I guess l was a little bit surprised that it was definitely lower. And l was also surprised that the lower rates of obesity didn't seem to differ from normal weight."

But Flegal stresses the difference in death rates appear to be small between normal-weight people and overweight and mildly obese individuals.

The finding by Flegal and colleagues have raised new questions about the reliability(可靠性)of the so-called "body mass index" or BMI, a measurement of body fat as a ratio(比例，比率)of height to weight, that has become popular in recent years among public healthexperts to measure potential health risks.

But Heymsfield warns that individuals should not conclude that it's okay to put on extra kilograms, since being at a healthy weight lowers the risk for heart disease and diabetes.

1.Katherine Flegal feels surprised at the fact that____.

A. obese people have higher death rates

B. slightly obese people have lower death rates

C. obese people tend to die early

D. death rates have nothing to do with body weight

2.What do we learn from the fifth paragraph?

A. BMI may not be so reliable.

B. The study provides further evidence for BMI.

C. BMI tells nothing about potential health risks.

D. BMI has been much questioned recently.

3.What can we conclude from the passage'?

A. It's OK to put on extra weight.

B. It doesn't matter if you are slightly obese.

C. Obese people are much healthier.

D. Body weight has nothing to do with death rates.

4.What topic does the passage mainly deal with?

A. Technology.　　 B. Dieting.　　 C. Health.　　 D. Death.

高三英语阅读理解中等难度题查看答案及解析