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题型:阅读理解-阅读单选 难度:0.65 引用次数:123 题号:15864659

“What were they thinking?” Like most parents of teens, I ask myself this question on a regular basis in regard to the decisions my kids make. For the most part, their bad decisions include unhealthy food choices or watching Netflix instead of doing their homework. It’s usually not a big deal unless they start throwing up because they ate something that they knew would make them sick or they have rush around to turn in their schoolwork on time because they wasted six hours watching “Stranger Things”. But for many adolescents, their bad decisions have much more terrible consequences.

Scientists have been trying to unlock the secrets of the adolescent brain for years. Now new research shows that adolescent brains go through structural changes that may affect their ability to make sound decisions.

Changes in the adolescent brain at this stage of development are responsible for several unpredictable behaviors. For example, the adolescent brain’s hunger for the “feel good” chemical, dopamine, drives young people to push boundaries and take risks. These structural brain differences may also be responsible for the fact that teens and young adults tend to over-identify with others and focus heavily on every setback (挫折). Add to these factors such as social media and sleep problems and it’s no wonder that when adolescents are presented with important decision-making opportunities, normal social taboos (禁忌) disappear and negative actions arise.

With a better understanding of adolescent brains, researchers are learning ways to use social media to connect teens with others so they can find help quickly when they need it. There has also been a much bigger push in recent years to talk about mental health in school as part of health curriculum (课程表). Just as kids learn about the importance of taking care of their physical health, they can also begin to understand things that might be affecting their emotional well-being.

The adolescent years are important. The more we know about adolescent brains, the better equipped we will be to help guide them through those confusing years and the problems they may face.

1. What do we know from paragraph 1?
A.Teens need to take responsibility for their decisions.
B.It’s surprising that teens often make bad decisions.
C.It’s necessary for parents to help teens make decisions.
D.Teens’ bad decisions can lead to unpleasant results.
2. What may result from changes in the adolescent brains?
A.Teens thinking too much about their failures.
B.Teens lacking a sense of responsibility.
C.Teens' addiction to social media.
D.Teens' sleep problems.
3. Why do researchers try to understand the adolescent brain?
A.To design accessible health curriculum.
B.To help improve teens’ emotional well-being.
C.To make clear teens’ decision-making process.
D.To explore things affecting teens’ brain development.
4. What might be the best title for the text?
A.What were your adolescent years like?
B.How do adolescent brains relate to teens’ decisions?
C.How can teens avoid losing decision-making opportunities?
D.Why should we allow teens to make their own decisions?
【知识点】 科普知识 说明文

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【推荐1】There’s nothing like a good night’s sleep-but what does that really mean? It turns out that the answer depends not only on your age, but also on your lifestyle. Some people are productive and happy with fewer hours of sleep, while others need more. Still, experts can determine guidelines that work for most people. The National Sleep Foundation researched the topic and gave new recommendations this week. The foundation acknowledge s that sleep needs will very lifestyle and stress should be taken into consideration but their recommendations offer a general guideline. For example, teenagers (14-17 years old) need 8-10 hours’ sleep every day.

To create the recommendations, some sleep and medical experts reviewed 312 articles from journals published during the last decade. This is the first time that a professional organization has developed age -specific recommended sleep durations (时长)bbased on systematic review of the world scientific literature.

A lack of sleep can be linked to weight gain, because that causes an increase in appetite, according to the foundation. It can also have serious consequences on the brain. People who do not get enough sleep are at increased risk for depression (抑郁症), and can endanger others. Those who become sleepy while driving, for example, risk both their lives and the lives of those around them.

Researchers also have found in the past that too much sleep can have negative effects. Low socioeconomic status and depression reportedly are significantly associated with longer sleep. However, experts nowadays find that research on oversleeping is still doubtful and needs more attention. Currently, there is no strong evidence that sleeping too much has health consequences. There is, however, laboratory evidence that short sleep durations of four to five hours have negative consequences. We need similar laboratory studies to determine whether long sleep durations result in physiological changes that could lead to disease before we make any recommendations against sleep extension.

1. Which is TRUE about sleeping time?
A.The time you need for sleep is related to your personal situation.
B.Experts’ guideline for sleeping time applies to all the people.
C.The less you sleep, the more productive you are.
D.The more you sleep, the more energetic you are.
2. The research shows that people without enough sleep will ______.
A.lose some weightB.eat more food
C.dream during their sleepD.drive faster than usual
3. From Paragraph 4, we can learn that ______.
A.too much sleep may result in social changes
B.researchers now agree with those in the past
C.more research on oversleeping is needed
D.research on oversleeping is quite persuasive
4. From which section of a newspaper is the passage most probably taken?
A.Health.B.Psychology.C.Sport.D.Education.
2024-02-20更新 | 36次组卷
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【推荐2】Researchers have found that men and women consumed 15 percent more calories when looking at their phones while eating. They also ate more fatty food. The groundbreaking study suggests that staring at a phone screen may distract diners from how much food they are actually eating.

“It may prevent the correct understanding of the brain over the amount of food ingested,”said researchers who filmed 62 volunteers eating alone.

The men and women, aged 18 to 28, were invited to help themselves to a choice of food – ranging from healthy options to soft drinks and chocolate – until they were satisfied. In three trials, the volunteers were recorded eating with no distractions, using a smartphone or reading a magazine.

On average, the volunteers ate 535 calories without the distraction of a smartphone but 591 when using a mobile.

Those in the sample who were classed as overweight ate 616 calories while using their phones. When in possession of their mobiles, the volunteers also consumed 10 percent more fatty foods. They also ate more when reading a magazine.

“Smartphone use during a meal increased calorie and fat intake,” said Márcio Gilberto Zangeronimoa, a lead author of the study – carried out at the Federal University of Lavras in Brazil and University Medical Center Utrecht in the Netherlands.

He added: “Tablets and smart phones have become the main ‘distracters”’during meals, even early in childhood, so it is important to pay attention to how this may impact food choices.”

“A distracter prevents the brain correctly understanding the amount of food ingested.” The study is published in the journal Physiology And Behavior.

1. What did the researchers take into consideration when designing the experiment?
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D.The volunteers’ hobby
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C.To search for a healthy way of using smart phone.
D.To warn us to avoid using smart phones during meals.
4. Where does this passage probably come from?
A.a wellness bookB.a magazineC.a new reportD.a travel journal
2023-12-09更新 | 48次组卷
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名校

【推荐3】Have you ever sat down in a restaurant and felt instantly drawn to a particular dish on the menu? The reason might be something as simple as that you love the dish’s main ingredient, but it’s often more than that.

Scientists are finding that the way food is presented can make a big difference. In one study, for example, party guests were given a glass of a drink called mango lassi. Half the guests were told the lassi was healthy. The rest were told it was unhealthy. Those who had the “healthy” drink considered it 55% less enjoyable than those who drank the “unhealthy” one, though the drinks were exactly the same.

People’s choices around what to eat are influenced by lots of small factors unconsciously. But we can make those choices more conscious by arming ourselves with information.

Agriculture accounts for about 25% of all greenhouse gas emissions warming the planet. But not all foods have equal influences. Globally, the production of animal-based foods accounts for about two-thirds of agricultural emissions, while plant-based foods generally have lower environmental influences.

Increasing the share of plant-based foods in our diets is therefore a key step in reducing agriculture’s pressure on climate. That doesn’t mean giving up meat, though. We can eat less animal-based food and more plants.

By examining how food decisions are made, scientists have learned that simple pushes can change people’s behavior in big ways. Restaurants, hotels, universities, and even cities have begun applying the latest behavioral science to help consumers cut their carbon footprint by choosing more sustainable foods. Burger King began a trial of the plant-based Impossible Burger. At Seattle Pacific University, campus food service provider Sodexo doubled the size of its plant-rich food station.

1. How is Paragraph 2 mainly developed?
A.By analyzing causes.B.By giving an example.
C.By stating an argument.D.By setting down general rules.
2. What can we infer about animal-based foods?
A.They are harmful to the environment.
B.They are the main reason for climate change.
C.They provide more nutrients than plant-based foods.
D.They are less consumed compared to plant-based foods.
3. What does the author suggest people do?
A.Pay attention to how food is cooked.
B.Choose healthy foods to live a longer life.
C.Consider climate change when deciding what to eat.
D.Give up meat to reduce pressure on the environment.
4. What does the last paragraph focus on?
A.Burger King’s new plant-based burgers.
B.Scientists’ new findings on people’s food decisions.
C.How consumers’ food decisions are influenced by small factors.
D.The society’s efforts to help people make eco-friendly food decisions.
2021-09-28更新 | 106次组卷
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