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题型:阅读理解-阅读单选 难度:0.4 引用次数:955 题号:1096225

Keeping a busy social life among lots of friends may keep people thinner than spending hours doing some exercises, according to scientists. They say that socialising and meeting with friends help increase levels of brown fat in the body which burns calories(卡路里)to produce heat.


     Living in an exciting social environment was found to reduce fat in mice's belly by half over four weeks, even if they ate more. US researchers say that social excitement aids weight loss by turning white fat into brown. White fat stores calories and makes us fatter, while brown burns energy to produce heat. Turning white fat into brown is extremely difficult,normally requiring long- term stay in cold conditions or exciting part of the body's nervous system.

However, scientists from Ohio State University now think that having a busy social life is an even more effective way of changing white fat into brown. The team came up with their theory by studying the effects of various living environments on mice. Those, who lived alongside a greater number of mice, had more space and toys to excite themselves and then lost far more weight over the course of the study than their “couch potato" fellows.


   Study author, Dr Matthew During, whose team's findings appear in the journal Cell Metabolism, said, "I'm still amazed at the degree of fat loss that occurs." Explaining how new technology had threatened face-to-face socialising, he added, "It's not just a sedentary(久坐 的)lifestyle and high calorie foods, but an increasing lack of social activities." Co-author Dr Lei Cao said,"Loneliness is a potential factor for cancer and death; it's equal to cigarette smoking to a certain extent. Social activities are very vital.,,
1. What information can we get from the first two paragraphs?
A.Brown fat stores calories and makes us fatter.
B.It doesn't take long to turn white fat into brown.
C.Social excitement helps gain more weight.
D.Brown fat can burn energy to produce heat.
2. Which of the following statement does the text support?
A.Levels of brown fat can be increased by socialising.
B.The mice lacking social life lose more weight.
C.The research findings haven't been published so far.
D.Dr Matthew During wasn't convinced of the result.
3. We can conclude from the text that _______.
A.the fat in mice's belly was reduced because of the relaxing environment
B.a sedentary lifestyle and high calories foods influence people's social life
C.surfing the Internet may influence people's face-to-face communication
D.cancer and death are mainly caused for lack of social life
4. What’s the main idea of the text?
A.Brown fat is beneficial to people's health.
B.Socialising is unnecessarily important in people's daily life.
C.White fat can be changed into brown fat.
D.Socialising contributes to people's losing weight.
2012·安徽安庆·二模 查看更多[7]

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【推荐1】There have always been a lot of commonly believed but false ideas about being fat and doing exercise. Some people believe that they can’t help putting on weight as they get older, while others hold that if they stop exercising, their muscles will turn into fat. Here are some more myths:


I’ll never lose weight--I come from a fat family

Wrong! While we can't change the body type we are born with, we can't blame our genes for making us fat. There's plenty of evidence that fatness runs in families, and the main reason is that they share the same habit of eating too much and exercise too little.

I am fat because I burn calories slowly

Wrong! Fatness is not caused by a slow metabolism(新陈代谢).In fact, although fat people consume more energy than slim people, they also fail to realize how much they eat! Keeping a diary can help you work out your daily food intake mom accurately.

Exercise is boring

Wrong! Anything will become boring if you do it repetitively. The key is to develop a balanced and varied program that's fun as well as progressive. If you enjoy a Sunday walk, take a different mute. If you do yoga, try a Tai chi class. If you like swiping, set yourself a distance or time challenge.

No pain, no gain

Wrong! Exercise is not meant to hurt. Indeed, pain is you body telling you something's wrong, and continuing to exercise could lead to serious injury. You may experience mild discomfort as you begin to exercise regularly, but this is your body adapting to the positive changes in your lifestyle and the aches should disappear relatively quickly. If they don't, rest and seek medical advice.

1. What does the author think about being fat?
A.It is the family genes that make people fat.
B.People are fat because they consume too little energy.
C.A diary of exercise can prevent people from becoming fat.
D.It is the consequence of people's unbalanced lifestyle.
2. According to the author, how can we make exercise mom interesting?
A.By taking varied exercise.B.By choosing simple exercise.
C.By doing regular exercise.D.By sticking to outdoor exercise.
3. What is the author's opinion about "No pain, no gain" in exercising?
A.Keeping lit is essentially a painful experience.
B.Exercise should be stopped if continuous pain is felt.
C.Pain in exercise is a precondition for reaching your goal.
D.Getting used to pain leads to positive changes in your body.
4. What is the purpose of the passage?
A.To declare the importance of keeping lit.
B.To clarify some misconceptions about fatness and exercise.
C.To confirm what has long been believed about keeping fit.
D.To explain some medical facts about being fat and doing exercise.
2016-11-26更新 | 558次组卷
阅读理解-阅读单选(约290词) | 较难 (0.4)
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【推荐2】As any person suffering from lack of sleep knows, dark circles under the eyes usually stand out after a bad night's sleep.

But why do people get these dark eye bags?The answer is both genetic (that is, relating to your DNA) and environmental (a result of your everyday living, such as rubbing your eyes or getting too little sleep),said Dr. Carol Clinton,a skin-care researcher in Dublin,Ohio.

But "the biggest reason is genes." Clinton told Live Science.Eye bags are generally more noticeable in people who,because of genes,have thin or pale skin.When people are tired or very nervous,blood circulation in the eye area becomes slow,allowing blood to pool there.Clinton said.Capillaries (毛细血管) stand out,leading to dark eye circles, she said.Besides,eye bags result from eyes' fat moving forward. An age-connected increase in fat beneath the eyeballs leads to eye bags."Anyway,when your eyes' fat is moving forward,you may think about having an operation in that area," Clinton said,"A person can get 9 hours of sleep a night,but still have eye bags because of a genetic development."

In other cases,environmental problems cause eye bags.For example, allergies (过敏)-especially seasonal allergies-can cause capillaries to stand out.Getting too much sun can also damage and thin the skin,making dark circles under the eyes easy to see.Besides,eating salty foods can cause the body to hold more water, which makes eye bags worse,according to the Mayo Clinic.

1. In Clinton's opinion, what is the main cause of the formation of dark eye bags?
A.Genes.B.Habits.
C.Age.D.The environment.
2. What can rid you of your eye bags according to the text?
A.Getting much sun.
B.Drinking plenty of water.
C.Having an operation on the fat in the eye area.
D.Slowing your blood circulation in the eye area.
3. What can we learn from the text?
A.It's possible to change genes.
B.Rubbing your eyes might cause dark eye bags.
C.Young people don't get dark eye bags.
D.You can't get dark eye bags if you get enough sleep.
4. What's the best title for the text?
A.What Can You Do to Protect Your Eyes?
B.The Importance of Sleep to People's Health
C.Several Measures to Remove Your Eye Bags
D.Why Do People Get "Bags" Under Their Eyes
2019-04-27更新 | 104次组卷
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【推荐3】One in four children and young people could have problematic smart-phone use, according to research that also suggests such behaviour is associated with poorer mental health.

The amount of time children and teens spend using their devices has become an issue of growing concern, but experts say there is still little evidence as to whether spending time on screens is harmful in itself.

The experts behind the latest study said they wanted to look beyond the time young people were spending on smart-phones and instead explore the type of relationship they had with smart-phones.

The results suggest more than 23% of young people have an abnormal relationship with their smart-phones, and that this appears to be associated with poorer mental health-although the research cannot say whether phone use is driving such problems.

“It seems like only a minority of teenagers and young people from various different countries are self-reporting a pattern of behaviour that we recognise from other addictions,” said Dr Nicola Kalk of King’s College London, co-author of the study. “The quality of the evidence is poor, but it is enough to warrant (保证) further investigation.”

Writing in the journal BMC Psychiatry, the team reported how they looked at data from 41 studies involving a total of almost 42,000 participants across Europe, Asia and America, mainly in their teens or early 20s.

These studies used questionnaires to probe the prevalence (普遍) of problematic smart-phone use-behaviours such as being anxious when the device is not available or neglecting other activities to spend time on the smart-phone.

Taken together, the team said on average these studies suggested as many as one in four children and young people had problematic smart-phone use.

Among the studies that probed mental health, the results suggested people with problematic smart-phone use were also more likely to have depression-for which the odds (可能性) were more than three times worse-anxiety, feelings of stress and poor sleep as well as poorer educational attainment.

While the team said it was too soon to call problematic smart-phone usage an addiction, they noted that it appeared to be linked to similar patterns of behaviour and emotion.

Kalk said further studies were needed to explore if these behaviours were hard to break, or cause harm-other key features of an addiction.

The authors argued that the availability and pervasiveness of smart-phones in everyday life meant problematic use of the devices posed a different and much bigger public health problem than substances of abuse or internet gaming.

Kalk said the team were now looking at whether smart-phones were just delivering addictive content, or whether there was something inherently addictive about using such devices.

Dr Amy Orben, an expert in screen time at the University of Cambridge, raised concerns, noting that the definition of problematic internet use varied considerably across studies, and the measures used were questioned.

She said studies finding little signs of problematic internet use might have been overlooked, while the research could not say whether problematic smart-phone use caused poorer mental health.

Prof Russell Viner, President of Royal College of Paediatrics and Child Health, said that parents were navigating unchartered water when it came to technology.

“One of the most critical things for parents to consider is whether screen time is having a harmful impact on other activities like school, relationships or other interests. This study suggests that this is the case for a significant minority of children and young people,” he said.

Viner said in these cases parents should calmly install age-appropriate boundaries on smart-phone use, and ask questions about whether their children were experiencing other problems.

“While screen time is a new problem, part of the solution is tried and tested-open and regular conversations based on respect and trust,” he said.

1. Experts conducted the research to ______.
A.address the concern about adolescent behavior
B.prove spending time on screens is harmful in itself
C.calculate the time young people spent on smart-phones
D.explore young people’s relationship type with smart-phones
2. We can learn from the research that ______.
A.it involved a vast majority of participants across the globe
B.the participants were asked to report their online activities
C.researchers compared different behaviors of the participants
D.problematic smart-phone use is linked to poorer mental health
3. Which of the following might Kalk probably agree?
A.It is hard to break problematic smart-phone use.
B.Internet gaming is problematic smart-phone use.
C.Problematic smart-phone use is an addiction.
D.The research still has some limitations.
4. What’s Dr Amy Orben’s attitude towards the research findings?
A.Supportive.B.Negative.
C.Sceptical.D.Unconcerned.
5. What does the underlined part in Paragraph 16 mean?
A.Screen time is a new challenge to parents.
B.Technology is posing a threat to parents.
C.Parents are lost in the sea of technology.
D.Parents use technology to chart water.
6. According to Viner, what should parents do to solve the problem?
A.Keep track of the screen time of children.
B.Strictly prohibit children from using devices.
C.Have a sincere communication with children.
D.Evaluate the impact of screen time on children.
2020-07-08更新 | 90次组卷
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