With the warmth of the sun on your skin and the sounds of the birds in the trees, stepping outside can help anyone feel instantly better. People who have been suffering from stress and sickness can spend quiet time in gardens. You may be surprised to learn that one of the best steps you can take to protect your health is to step outside and spend some time in the grass, dirt and water.
Our ancestors enjoyed the healing power of nature, and now scientists are starting to catch up, according to research in recent years, just having a view of nature has been shown to improve hospital patients’ recovery and reduce illness rates among office workers. Also, exposure to wildlife, horseback riding, hiking, camping and farms can be helpful for a variety of health conditions in adults and children.
Much of this type of research is focusing on children, and in fact an entire movement has quickly developed to connect kids with the healing power of nature.
Obesity (肥胖). Rates of childhood obesity have grown sharply in recent years, and this is partly because of reduced outdoor activity time. Increasing the time students spend learning about nature, both in and outside the classroom, would help solve this problem. Such lessons are often more attractive for students and often lead them to become more active outside.
Attention deficit hyperactivity disorder (ADHD) (多动症). Exposure to ordinary natural settings in the course of common after-school and weekend activities may be effective in reducing attention deficit symptoms in children. According to a study, participation in green activities, such as nature walks, helped ADHD patients from a wide range of backgrounds to stay focused and complete tasks.
Stress. Access to nature, even house plants, can help children cope with stress.
Depression and seasonal emotional disorder. Major depression requires medical treatment, but physical activity, especially outdoors, can help ease symptoms. For your average case of winter blues, experts suggest spending time outside every day and, if possible, taking the family to a sunny vacation spot in mid-winter.
Experts emphasize that you needn’t go to wilderness preserves to enjoy nature’s benefit! Simply walking in a city park or growing in a rooftop garden can go a long way.
1. What can be inferred from the first paragraph?A.Enjoying the sounds of birds makes people feel instantly better. |
B.Modern people pay little attention to the benefit of stepping outside to their health. |
C.Stepping outside is one of the best steps you can take to protect your health. |
D.People suffering from stress and sickness can spend quiet time in gardens. |
A.should involve parents in them | B.should take place outdoors |
C.are used widely at schools | D.are liked by students |
A.walk a long way | B.go far away |
C.make a difference | D.increase stress |
A.Healing Power of Nature | B.Access to the Nature |
C.Problems with Children | D.Solutions to Obesity |
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【推荐1】The United Nations predicts worldwide temperatures over the next five years may at times rise to more than 1.5 degrees Centigrade above pre-industrial levels. The U.N.’s World Meteorological(气象的) Organization, WMO, said the prediction suggests continued warming could present a challenge to climate change goals set in the 2015 Paris Agreement,which seeks to limit world temperature rises through major cuts in human-caused greenhouse gases.
The WMO said there was a 20 percent chance that the yearly average temperature will rise above 1.5 Celsius higher than the pre-industrial average levels in at least one year.The report identifies 1850-1900 as the pre-industrial period.That does not mean that the average would be crossing the long-term target of 1.S Celsius that scientists have set as the limit for avoiding catastrophic(灾难性的) climate change.
Temperatures over the last five years have been the warmest on record, the WMO reported. Temperatures over the next five years are very likely to be within the range of 0.91 to 1.59Celsius above pre-industrial levels, it predicted. Southern Africa and Australia, where fires last year destroyed millions of hectares(公顷),will probably be drier than usual through 2024, the report said. Africa’s Sahel region is likely be wetter, while Europe should see more storms.
Maxx Dilley, the WMO’s director of climate services, told the Associated Press the predictions are worrisome. “It shows how close we’re getting to what the Paris Agreement is trying to prevent,” he said.Still,Dilley added that it would not be impossible for countries to reach the target set in Paris,of keeping global warming well below 2 degrees Celsius,by the end of the century. Petteri Taalas, the WMO Secretary-General, added, “While COVID-19 has caused a severe international health and economic crisis, failure to cope with climate change may threaten human well-being, ecosystems and economies for centuries.”
1. According to WMO,the continued warming isA.in an alarming trend. | B.Out of control. |
C.Naturally developing. | D.Far from worry. |
A.Temperatures will have a sudden rise. |
B.People in Africa should get more help. |
C.Fires in Australia will last over 5 years. |
D.Our living environment is getting worse. |
A.Carefree. | B.Objective. | C.Indifferent. | D.Scared. |
A.Global impact of Climate change. |
B.The most serious challenge we face. |
C.UN predicts more rising temperatures. |
D.How do we cope with continued warming. |
【推荐2】Scientists have recreated a 1985 study of birds in Peru that shows climate change is pushing them from their natural environment. Thirty years ago, researchers studied over 400 kinds of birds living on a mountainside in Peru. In 2017, researchers looked again at the bird populations. They found that almost all had moved to higher places in the mountain. Almost all had decreased in size. And, the scientists say at least eight bird groups that started at the higher elevations (高地) had died out completely.
The researchers say the birds might have moved up the mountain because of temperature changes. Or changes to food sources may have forced them to go higher. The findings were published in a science journal. The 1985 research has documented birds and other animals moving up in elevation (高地) in reaction to warming temperatures. Mark Urban, a biologist at a university, said this recent study was the first to prove that rising temperatures and moving to avoid them can lead to extinction.
In 2016, Fitzpatrick, director and a co-writer of the study passed his notes, photos and other records to Benjamin Freeman. Freeman has been researching tropical birds for more than 10 years. He set out in August and September of 2017 to copy Fitzpatrick’s study. His team used the same methods, searching the same places in the same time of year.
Freeman’s team wanted to see how things had changed for the bird groups since 1985. The average temperatures on the mountain had risen 0.42 degrees Celsius. His team placed 20 sound recording devices on the mountain to record the sounds of birds that might not easily be seen.
Freeman said that the birds moved an average of 98 meters further up the mountain. He believes that temperature is the main cause of the birds’ movement. Fitzpatrick noted that birds used to living in areas with little temperature change may be especially at risk because of climate change. He said, “We should expect that what’s happening on this mountain top is happening more generally in the Andes, and other tropical mountain ranges.”
1. How many kinds of birds lived in Peru 30 years ago?A.At least eight bird groups. | B.More than 400. |
C.Over eight bird groups. | D.Less than 400. |
A.To avoid temperature changes. |
B.To find more food sources. |
C.To adapt to extreme temperature. |
D.To react to the increase of other kinds of animals. |
A.They had the temperature rise 0.42 degrees Celsius. |
B.They moved an average of 98 meters further up the mountain. |
C.They placed 20 sound recording devices on the mountain. |
D.They kept on listening to the sound happening on this mountain top. |
A.Two teams used the same methods to do researches. |
B.Scientists documented birds and other animals moving up in elevation. |
C.Scientists have been researching tropical birds for more than 10 years. |
D.Rising temperature made almost all birds in Peru become extinct. |
【推荐3】When prehistoric man arrived in new parts of the world, something strange happened to the large animals. They suddenly became extinct. Smaller species survived. The large, slow-growing animals were easy game, and were quickly hunted to extinction. Now something similar could be happening in the oceans.
That the seas are being overfished has been known for years. What researchers such as Ransom Myers and Boris Worm have shown is just how fast things are changing. They have looked at half a century of data from fisheries around the world. Their methods do not attempt to estimate the actual biomass (the amount of living biological matter) of fish species in particular parts of the ocean, but rather changes in that biomass over time. According to their latest paper published in Nature, the biomass of large predators (animals that kill and eat other animals) in a new fishery is reduced on average by 80% within 15 years of the start of exploitation. In some long-fished areas, it has halved again since then.
Dr. Worm acknowledges that the figures are conservative. One reason for this is that fishing technology has improved. Today's vessels (船)can find their prey using satellites and sonar, which were not available 50 years ago. That means a higher proportion of what is in the sea is being caught, so the real difference between present and past is likely to be worse than the one recorded by changes in catch sizes. In the early days, too, longlines (多钩长线) would have been more filled with fish. Some individuals would therefore not have been caught, since no baited hooks (带饵钩)would have been available to trap them, leading to an underestimate of fish stocks in the past. Furthermore, in the early days of longline fishing, a lot of fish were lost to sharks after they had been hooked. That is no longer a problem, because there are fewer sharks around now。
Dr. Myers and Dr. Worm argue that their work gives a correct baseline, which future management efforts must take into account. They believe the data support an idea current among marine biologists, that of the “shifting baseline". The idea is that people have failed to detect the massive changes which have happened in the ocean because they have been looking back only a relatively short time into the past. That matters because theory suggests that the maximum sustainable yield (产量)that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels. Most fisheries are well below that, which is a bad way to do business.
1. The extinction of large prehistoric animals is noted to suggest that .A.large animals were easily hurt in the changing environment |
B.small species survived as large animals disappeared |
C.large sea animals may face the same threat today |
D.slow-growing fish outlive fast-growing ones |
A.fishing technology has improved rapidly |
B.the catch-sizes are actually smaller than recorded |
C.the marine biomass has suffered a greater loss |
D.the data collected so far are out of date |
A.people should look for a baseline that can't work for a longer time |
B.fisheries should keep the yield below 50% of the biomass |
C.the ocean biomass should restore its original level |
D.people should adjust the fishing baseline to changing situation |
【推荐1】By mimicking (模仿) the properties (特性) of spider silk, one of the strongest materials in nature, researchers from the University of Cambridge have created a plant-based, sustainable material which promises to replace plastic in many common household products.
Created by using a new approach for assembling plant proteins into materials which mimic silk on a molecular (分子的) level, the new material is as strong as many common plastics in use today. The energy-efficient method, which uses sustainable ingredients, results in a plastic-like film. Non-fading “structural” color can be added to the film, and it can also be used to make water-resistant coatings.
For years, Professor Tuomas Knowles from Cambridge has been researching the behavior of proteins. Much of his research has been focused on what happens when proteins misfold or “misbehave”, and how this relates to health and human disease, primarily Alzheimer’s disease. As part of the research, Knowles and his team became interested in why materials like spider silk are so strong when they have such weak molecular bonds (键). Having found that one of the key features that gives spider silk its strength is that the hydrogen bonds are arranged regularly in space and at a very high density, the researchers successfully replicated (复制) the structures found on spider silk by using soy protein isolate (SPI), a protein with a completely different composition.
“Other researchers have been working directly with silk materials as a plastic replacement, but they’re still an animal product. In a way we’ve come up with ‘vegan spider silk’— we’ve created the same material without the spider.”
“This is the culmination of something we’ve been working on for years, which is understanding how nature generates materials from proteins,” said Knowles. “We didn’t set out to solve a sustainability challenge — we were motivated by curiosity as to how to create strong materials from weak interactions.”
1. What is Paragraph 3 mainly about?A.How the new material was created. | B.What makes the ideal ingredients. |
C.Who are in charge of the research. | D.Why health and disease are connected. |
A.Life is full of surprises. | B.Ideals light our way forward. |
C.Failure is the mother of success. | D.We must believe in ourselves. |
A.It’s strong. | B.It’s efficient. | C.It’s sustainable. | D.It’s replaceable. |
A.Fruit. | B.Demand. | C.Complexity. | D.Change. |
【推荐2】You’re walking down a quiet street and suddenly you hear some footsteps. Undoubtedly, it means that there’s someone around. But have you ever wondered why it occurs to us that it’s someone else’s footsteps, not ours?
According to a new study published in the journal Nature in September, this phenomenon arises from a function in our brain to ignore the noise we make ourselves.
In order to explore how our brain does this, a group of scientists carried out an experiment with mice at Duke University. The research entered on an intuition-that we are usually unaware of the sound of our own footsteps-as a vehicle for understanding larger neural phenomena; how this behavior reveals the ability to monitor, recognize, and remember the sound of one’s own movements in relation to those of their larger environments.
In the experiment, research controlled the sounds of a group of mice could hear, reported Science Daily. During the first several days, the mice would hear the same sound each time they took a step. This was just like “running on a tiny piano with each key playing exactly the same note”, senior study author Richard Mooney, a professor of neurobiology at Duke University, told Live Science.
Scientists found that their auditory cortex (听觉皮层) – the area of the brain that processes sound –became active at first but decreased its response to the sound after two or three minutes when the mice became familiar with it.
“ It’s almost like they were wearing special headphones that could filter (过滤) out the sound of their own movements.” David Schneider, an assistant professor at the Center for Neutral Science at New York University, told HuffPost.
But once the sound changed, their auditory cortex became active again. This suggests that the “sensory filter” in a mouse’s brain could help it detect new sounds or abnormal noise in the environment easily after tuning out familiar sounds.
“For mice, this is really important,” said Schneider. “They are prey animals, so they really need to be able to listen for a cat creeping up on them, even when they’re walking and making noise.
Being able to ignore the sounds of one’s own movements is likely important for humans as well. But the ability to predict the sounds of our own actions is also important for more complex human behaviors such as speaking or playing an instrument.
“When we learn to speak or to play music, we predict what sounds we are going to hear – such as when we prepare to strike keys on a piano – and we compare this to what we actually hear, “explains Schneider. “We use mismatches between expectation and experience to change how we play – and we get better over time because our brain is trying to minimize these errors.”
1. What can be discovered about mice in the experiment?A.Their brain responds inactively to the familiar sounds |
B.They are able to detect sounds other animals don’t notice. |
C.They cannot identify different sounds except their own footsteps. |
D.Different areas of their brain are responsible for different sounds. |
A.Ignoring the sounds made by our companions. |
B.Getting used to abnormal or unfamiliar sounds. |
C.Identifying the sounds from a larger environment. |
D.Being sensitive to the sounds of our own movement. |
A.He has the ability to match the wrong note with the instrument player. |
B.He has an intuition that he should ignore the sound of his own movement. |
C.He has a low expectation and knows where players are likely to make errors. |
D.He has a good prediction of how each note should be played in the orchestra. |
A.Noise-filtering ability ensures us a quiet and undisturbed environment. |
B.The ability to ignore familiar noises helps to detect potential dangers. |
C.The activeness of auditory cortex determines our activity performance. |
D.Sound-predicting ability seems not so important for humans as for animals. |
【推荐3】It sounds like science fiction, but the world's first floating dairy farm(奶牛场 )the brainchild of Dutch company Beladon, will become a reality.
Though the project has been in the works for years, the farm only recently got the green light for construction. This summer, a 900-ton platform was pulled to its current position in Rotterdam's harbor. It will soon be a multi-level home to 40 cows.
According to Peter, owner of Beladon, animal welfare was important when they were designing the farm. The finished farm will feature a “cow garden"on the top floor, with artificial trees and bushes to offer shade. A team of robots will be hired,collecting about 800 liters of milk per day. The milk will then be processed on the floor below and sold locally. In their free time. however, cows can walk a ramp(斜坡) to reach the firm ground on the bank.Tasty waste from the city-cut grass, potato skins, etc.- will be their main food source And waste from the farm will be used as fertilizer throughout Rotterdam.
The building will attract many visitors, but the real focus is food security. Getting cows on the water is a great step towards creating healthier cities. The idea first came in 2012, while Peter was in New York. When Hurricane Sandy hit, he watched the city's transportation paralyzed (瘫痪的)as Manhattan's roads were filled with water. Trucks for food distribution couldn’t move anymore.After two days. there was no fresh food in the stores, Then Peter had a thought: To create a climate-adaptive method of producing fresh, local food, why not harvest right on the water?"You going up and down with the tide, and you don’t need the transport."
Though it's just one small farm the project can serve as a model for cities across the globe. A building on the water is transportable, so you can move it when necessary.
1. What do we know about the dairy farm?A.It is meant to serve local citizens. |
B.It is out of the question. |
C.It is located in the deep sea. |
D.It is owned by the government. |
A.They feed on the plants grown on the farm. |
B.They have access to the real land. |
C.They can wander in the real garden |
D.Their waste can be fully used aboard. |
A.To improve the local environment. | B.To add a new scenic spot. |
C.To help ensure food supply. | D.To reduce pressure on transport. |
A.Indifferent. | B.Worried. |
C.Doubtful. | D.Supportive. |
【推荐1】Sometimes, you just can’t say no to another spoonful of ice cream and maybe one more after that. Why not? You deserve it.
There’s no need to beat yourself up about it later. The truth is that you were probably bound to do that from the very first spoonful. That’s because there is a switch in your brain, and for whatever reason, it can get stuck in the “on” position.
According to a new study, this impulse (冲动) control may come down to a very specific circuit (回答) in the brain which occasionally produces melanin-concentrating hormone, or MCH—a chemical linked with our desire for food or drugs. And that circuit always says yes.
By manipulating this circuit, it is possible that we might be able to develop cures for overeating that help people stick to a diet without reducing normal appetite or making delicious foods like donuts less delicious.
For their research, the scientists treated rats to a self-serve buffet. Bur the treats were on a timed delivery system, making tasty food every 20 seconds, and only when a rat pressed a lever (杠杆). Hit that lever too early—as impatient test subjects occasionally did—and the counter would start from scratch. Lever-happy rats would have to wait another cycle before the food became available again.
A second experiment offered the rats two dining options. Push Lever A and get an immediate small reward. Pushing Lever B meants waiting for around40 seconds, but the food reward would be much bigger. Guess which lever those impatient rats were most food of? That’s right. They picked the now-now-now switch.
Their impulsiveness, however, rose sharply when scientists gave the rats MCH. These animals become more impulsive. MCH, it seemed, could talk rats into loosening its inhibitions (拘束). The result? More please.
Researchers can now see where that conversation between the brain’s reward system and its impulse control center takes place. The next step will be to map it—and potentially influence the discussion. It may eventually be possible to control a food-eating impulse.
1. Which of the following can best replace the underlined word “manipulating” in paragraph 4?A.Strengthening. | B.Controlling. |
C.Classifying. | D.Creating. |
A.A bigger food reward would appear. |
B.Tasty food would be delivered much sooner. |
C.Longer time would be needed for food to appear. |
D.The lever would be stopped form delivering food. |
A.To find out the effect of MCH on animals. |
B.To prove rats are also greedy for more food. |
C.To study how levers influence rats’ impulse. |
D.To show rats and humans have similar impulse for food. |
A.What Is the Effect of Your Impulse? |
B.What Can You Do to Resist More Food? |
C.Why Can’t You Say “No” to Your Impulse? |
D.Why Do You Always Give in to One More Mouthful? |
【推荐2】Of all the components of a good night’s sleep, dreams seem to be least within our control. In dreams, a window opens into a world where logic is suspended and dead people speak. A century ago, Freud stated his revolutionary theory that dreams were the disguised (伪装的)shadows of our unconscious desires and fears: by the late 1970se neurologists had switched to thinking of them as just "mental noise"—the random byproducts of the neural-repair work that goes on during sleep. Now researchers suspect that dreams are part of the minds emotional thermostat, regulating moods while the brain is "off-line". And one leading authority says that these intensely powerful mental events can be not only influenced but actually brought under conscious control, to help us sleep and feel better. "It's your dream," says Rosalind Cartwright, chair of psychology at Chicago's Medical Center. "If you don't like it change it."
The link between dreams and emotions shows up among the patients in Cartwright's clinic. Most people seem to have more bad dreams early in the night, progressing toward happier ones before awakening, suggesting that they are working through negative feelings generated(产生)during the day. Because our conscious mind is occupied with daily life. we don't always think about the emotional significance of the day' s events—until, it appears, we begin to dreams.
And this process need not be left to the unconscious. Cartwright believes one can exercise conscious control over repeated bad dreams. As soon as you awaken, identify what is upsetting about the dream. Visualize how you would like it to end instead; the next time it occurs, try to wake up just enough to control its course. With much practice people can learn to, literally, do it in their sleep.
At the end of the day, there's probably little reason to pay attention to our dreams at all unless they keep us from sleeping or "we wake up in a panic," Cartwright says. Terrorism, economic uncertainties and general feelings of insecurity have increased people's anxiety. Those suffering from persistent nightmares should seek help from a therapist. For the rest of us, the brain has its ways of working through bad feeling Sleep—or rather dream—on it and you'll feel better in the morning.
1. By saying that "dreams are part of the mind's emotional thermostat" in paragraph 1, the researchers mean that______.A.dreams can help us keep our mood comparatively stable |
B.dreams can be brought under conscious control |
C.dreams represent our unconscious desires and fears |
D.we can think logically in the dreams too |
A.become worse in our unconscious mind |
B.develop into happy dreams |
C.persist till the time we fall asleep |
D.show up in dreams early at night |
A.control what dreams to dream |
B.sleep well without any dreams |
C.wake up in time to stop the bad dreams |
D.identify what is upsetting about the dreams |
A.lead their life as usual |
B.seek professional help |
C.exercise conscious control |
D.avoid anxiety in the daytime |
【推荐3】Imagine how you’d feel if you had to get more than 9,000 tons of junk out to the sidewalk. That’s how much trash is floating around in space. In fact, there’s about 4 million pounds flying over our heads in low-Earth orbit. Daan, a Dutch artist, and his team at Space Waste Lab have come up with a creative plan that could clear up space junk in a spectacular fashion.
①Most space waste comes from dead satellites and rockets. Functioning satellites are the backbone of the information systems that keep our world running smoothly. But all the satellites eventually become obsolete within just a few decades. When they die out, there’s the problem of them drifting in outer space, collecting in what scientists call the “graveyard orbit.”
Maybe you’re thinking, “Why should I care about garbage 12,500 miles above me?” Well, all that fun stuff that satellites help beam down to us—mobile games, Instagram, cat videos—could be shut down by space waste. Lots of old junk floating around up there, plus new satellites added each year, means more and more high-speed collisions (碰撞). And when chunks of junk crash into one another, they break apart into millions of pieces, quickly building up speed and turning into fast-moving objects, which are dangerous to operational satellites as well as astronauts working on the International Space Station.
②Space waste is a problem that’s escalated so much, some scientists say that by 2050 we’ll be forced to stop launching new spacecraft altogether, including new satellites. Think about that for a minute. When the last satellites finally become disused, GPS, cell phones, and the Internet will no longer function.
③So we have to find a way to deal with this space garbage, and Daan pictures a sort of trash pickup, which involves groups of small spacecraft casting large nets into orbit that would collect space debris (碎片) and send it back toward Earth at top speed. Here’s the best part—while reentering Earth’s atmosphere, the pieces of junk would burn up all at once, creating a light show similar to hundreds of shooting stars falling in the night sky. A spectacle indeed!
To get ready for such an amazing effort, Space Waste Lab has been traveling to major cities across Europe and enlightening the public on the problem of the junk in space. ④But Daan doesn’t just talk about ways to relieve the problem—he’s created something a little grander than that. In October 2018, his team launched Space Waste Lab Performance, an outdoor art exhibition that shows the location of each piece of space trash using large lasers that make each debris look a bit like a star wandering slowly and silently over the sky, allowing viewers to wave and say, “Hallo, space trash!”
1. The word “obsolete” (paragraph 2) is closest in meaning to “______”.A.accessible | B.profitable |
C.floating | D.outdated |
A.Working satellites can be damaged and astronauts can be hurt. |
B.Satellites can help people track the weather and find new locations. |
C.There is more junk floating in space each year as new satellites are added. |
D.The Space Waste Lab Performance can show people where satellites are located. |
A.Sentences ① | B.Sentence ② |
C.Sentence ③ | D.Sentence ④ |
A.Space Junk Harms Digital Systems |
B.Artists’ Proposal to Save Space |
C.A New Glimpse into Outer Space |
D.Test of Waste Collection Nets |
【推荐1】Dieting is often doomed to failure.The problem is, we don't follow the rules we learn.No carbs after 6pm?No problem-until we're out for dinner, on our second glass of wine and reaching for the bread basket.Everyone has a flash point that makes it hard to say no, but ultimately, resisting temptation is the key to successful weight loss.
Now research from leading psychologists has identified the parts of the brain involved in resisting temptation, and how we can use them to stop reaching for chocolate cake.Leading the charge is Professor Walter Mischel, the psychologist who developed the ‘marshmallow test', which demonstrated that if children were able to delay gratification(满足感), they would be more successful in later life.Mischel’s research has shown that to resist temptation, we have to shift activity away from the ‘hot’ parts of our brain to the ‘cool’ parts.The mind brain has two systems:one is cool, slow and deliberate, and allows for self-control, goal-setting and willpower-the ‘no’ system, if you like.The other is hot, emotional and instinctual, and present from birth-the ‘go’ system.
So when you see a chocolate cake, the ‘hot’ part of your brain reacts to thoughts of the delicious taste, and the sugar rush that you have learnt a slice will give you.Instead of giving in, what you need to do is to activate the ‘cool’ part of your brain by thinking about your goals and practicing far-sightedness.Imagine the sense of satisfaction you'd get, from fitting into your favorite dress in a couple of weeks’ time, say, or from losing your unsightly tummy bulge before you go sunbathing this summer.It's a simple strategy, but experiments have shown it is highly effective.
Perception is also important.Feasting your eyes on desirable food activates the hot system in the brain, which explains what we know instinctively:putting biscuits out of sight in a cupboard will mean you eat fewer of them."The problem with diets is they are also full of pictures of delicious diet food; and all of this is just activating the hot system, "Mischel says.
Stress is another key issue.It has been shown to switch on the hot part of the brain and cause us to overeat.The first thing to do is to be aware of how stress changes your behavior.Then develop an action plan to deal with it.This might involve taking healthy snacks to work or finding ways to cope better with your time and emotions.
Brain scans have also shown that memory plays a significant role in overeating.If you habitually eat chocolate, for instance, then every time you see it, you remember the high.So the research is clear:if you want to be slim, fit and healthy, it's time to take control of your mind.
1. By saying ‘Dieting is often doomed to failure’, the author declares ______.A.It's always hard to set up rules we follow in dieting |
B.We shouldn't have a flash point to keep a diet. |
C.Losing weight is particularly hard to those who drink wine at dinner |
D.People tend to give in when tempted with tasty food |
A.It is developed by psychologists to help treat patients with mental diseases. |
B.One of its major findings is the different functions of ‘hot’ and ‘cold’ parts with brain. |
C.It urges that children should learn to delay gratification for later success. |
D.The ‘hot’ part of our brain always wins over the ‘cold’ part in establishing our actions. |
A.prove fitting into your favorite dress can help you gain confidence. |
B.suggest dieting people should put such food out of sight |
C.convince us that chocolate is fattening but it can help release stress |
D.explain how the two systems of our brain actually work |
A.can help release viewers’ stress |
B.enjoy great trust from the consumers |
C.will easily motivate the ‘hot’ system |
D.keep track of the memory bank. |
【推荐2】This time of year many of us are determined to get back into shape. But if you are having trouble fitting into your tight jeans, it may not be your fault. Scientists now believe that willpower alone is not enough to lose weight. They say success depends on your genes, hormones (荷尔蒙) and psychology.
A study of 75 people by BBC Science and Oxford and Cambridge Universities has looked into why one-size-fits-all diets are often not successful. The scientists divided over-eaters into three groups—people who feast, people who constantly crave food and emotional eaters. They tailored (定制) diets to the needs of each group.
Feasters can’t stop eating once they start. This is because they don’t have the hormones that tell them when they are full. Scientists designed a diet for this group paying special attention to high protein foods that make them feel full for a long time. This included fish, chicken, basmati rice and grains. Bread and potatoes were not allowed because they do not fill you up for long.
Constant cravers always feel hungry. Scientists say that certain genes stop the messages the stomach sends to the brain saying it is full, meaning the cravers always feel like they need more fatty, sugary food. Dieting seven days a week is very hard for these people, so scientists put them on a normal, healthy diet five days a week, and eating whenever they feel stressed. To help them change this behaviour, scientists offered them group support in meetings and online as well as a diet.
During the study, people from all three groups lost weight on the tailored diets, with feasters losing the most and constant cravers losing the least.
So what about you? If any of the eating habits sound familiar, perhaps you should consider a new approach to slimming for now.
1. What is the solution that scientists suggest for feasters?
A.Providing them with a certain hormone. |
B.Designing a high-protein diet for them. |
C.Reducing their calorie intake on the weekend. |
D.Giving them group support in meetings and online. |
A.Bread and potatoes are harder to digest than fish and chicken. |
B.Anyone can lose weight only if he or she has strong determination. |
C.Emotional eaters are more likely to lose weight than constant cravers. |
D.Scientists will find one-size-fits-all diets for those who want to lose weight. |
A.Three factors that determine our success in getting back into shape. |
B.Three approaches to losing weight according to eating habits. |
C.Willpower is not enough to lose weight. |
D.A research on tailored diets. |
【推荐3】It's extremely rare to find characters that excited such enthusiasm in the British population as Margaret Thatcher once did. There was no middle ground, no sitting on the fence and that was just the way she like it.
Back in the 70s—thanks to a combination of incapable Conservative and Labour prime ministers (all male) and the unelected and militant union leaders who didn't always have their members' best interests at heart—the country was on its knees, virtually bankrupt and covered in uncollected rubbish due to a massive public sector strike.
It was no wonder the people saw hope in Margaret Thatcher and accordingly voted her into power when, depending on where you were standing at the time, she either saved Great Britain or ruined people's lives.
Personally, for me it was the former and I could see how she improved the prospects and desires of the working classes to better themselves. I was one of them. At the same time I can also understand why people in the North of England who suffered after the close of the last remaining pits, factories and manufacturing industries didn’t see it that way.
But what I don't understand is how some folk think it’s OK to be so openly disrespectful in her death just because it's her.
The so-called ''death parties'' are sickening, attended as they mostly are by people who probably don't quite know who she is let alone who lived under her rule.
The Brighton teacher Romany Blythe, who organized one of the parties, actually compared her to Hitler. But Margaret didn't devote herself to genocide—murder of a whole race, neither did she attempt to take over Europe and control its people. She only went to war once in order to protect a British outpost in the South Atlantic after it was threatened and invaded by the Argentineans. And there lies the real reason I think she inspires such unreasonable hatred—because she was a woman. She clearly had no choice but to get the country back on its feet. Not one of them has half the courage to get us out of the current mess we’re in. They're all too bothered about being popular, so they spend all their time trying to please all of the people all of the time. It's just not possible—as the lady herself proved.
1. What kind of person can we see Margaret Thatcher as in the passage?A.Consistent(一致的) | B.Conservative(保守的) |
C.Controversial(有争议的) | D.Considerate(体贴周到的) |
A.Most Argentineans | B.Some of working classes |
C.Former prime ministers | D.Death party members |
A.she launched the war against Argentina |
B.she started a massive public sector strike |
C.they believe she devoted herself to genocide |
D.they think she brought them a miserable life |
A.Margaret Thatcher was popular among workers throughout the country. |
B.Margaret Thatcher did not succeed in getting the country back on its feet |
C.none of those who hate Margaret Thatcher can rule Britain as well as she did |
D.it is understandable why disrespect is shown to Margaret Thatcher on her death |
A.Incapable politicians. | B.Death party organizers. |
C.Women of courage. | D.Followers of Hitler. |
A.defend Margaret Thatcher against blames on her |
B.honour Margaret Thatcher and her achievements |
C.call on people to mourn for Margaret Thatcher |
D.show different opinions about Margaret Thatcher |