1 . As race season approaches, many runners have the same goal: go faster. But in a study published in the journal Current Biology, researchers show that speeding up might require us to resist our natural biology. By combining data from runners monitored in a lab along with 37,000 runs recorded on wearable fitness trackers, scientists have found that humans’ natural tendency is to run at a speed that conserves caloric loss—something that racers seeking to shave time off their miles will have to get over.
The research group have been studying the mechanics of running in labs for 15 years but hadn’t gotten a chance to study running in the wild before. “We joined the two datasets to gain new insights and combine the more messy wearable data with the gold standard lab experiments to learn about how people run out,” says co-author Jennifer Hicks.
What surprised the team was the consistency they found across the combined datasets. “We had assumed earlier that people ran faster for shorter distances and then would slow their pace for longer distances,” says first author Jessica Selinger. But this wasn’t the case. Most of the runners analyzed stuck with the same speed, whether they were going for a short run or a long one over ten kilometers.
From an evolutionary (进化) standpoint, it makes sense that people would run at the speed that uses the least amount of energy. This caloric conservation is something that has been observed across the animal kingdom. But humans’ reasons for running have changed, and if the goal is speed, there are some tricks runners can use.
Listening to music with a faster pace has been shown to help speed up stride (步伐) frequency, which increases running speed. In addition, picking faster running partners can give you a boost.
Hicks hopes that having large pools of fitness data from wearables will help researchers gain insights about populations. “You can look at connections with the built environment and access to leisure resources and start to layer all of that data to really understand how to improve physical activity and health more broadly,” says Hicks.
1. What do the racers have to overcome during the race?| A．Energy consumption. | B．Muscle loss. |
| C．Weakness of humanity. | D．Lack of nutrients. |
| A．People would run in the wild rather than in labs. |
| B．People adjust their speeds to different distances. |
| C．People run at a constant speed regardless of distance. |
| D．People possess enormous potential for running faster. |
| A．To offer tips on speed increase. |
| B．To evaluate the advantages of running. |
| C．To explain the importance of fast running. |
| D．To reveal the change in human running goals. |
| A．Unclear. | B．Critical. | C．Doubtful. | D．Favorable. |
2 . The benefits of regular exercise are well documented but there’s a new bonus to add to the ever-growing list. New research found that middle-aged women who were physically fit could be nearly 90 percent less likely to develop dementia (失智症) in later life-and if they did, it came on a decade later than less sporty women.
Lead researcher Dr.Helena Horder, of the University of Gothenburg in Sweden, said: “These findings are exciting because it’s possible that improving people’s cardiovascular (心血管的) fitness in middle age could delay or even prevent them from developing dementia.”
For the study, 191 women with an average age of 50 took a bicycle exercise test until they were tired out to measure their peak (最大值的) cardiovascular capacity. The average peak workload was measured at 103 watts.
A total of 40 women met the criteria for a high fitness level with a capacity of 120 watts or higher. While 92 women were in the medium fitness category; a total of 59 were of low fitness level, with a peak workload of 80 watts or less, or having their tests stopped because of health problems.
These women were then tested for dementia six times over the following four decades. During that time, 44 of the women developed dementia. Five percent of the highly fit women developed dementia, compared to 25 percent of the women with medium fitness and 32 percent of the women with low fitness.
“However, this study does not show cause and effect between cardiovascular fitness and dementia, it only shows an association,” said Horder. “More research is needed to see if improved fitness could have a positive effect on the risk of dementia and also to look at when during a lifetime a high fitness level is most important.” She also admitted that a relatively small number of women were studied, all of whom were from Sweden, so the results might not be applicable to other groups.
1. What is on the ever-growing list mentioned in the first paragraph?| A．Positive effects of doing exercises. | B．Exercises suitable for the middle-aged. |
| C．Experimental studies on dementia. | D．Advantages of sporty women over men. |
| A．To predict their maximum heart rate. | B．To assess their cardiovascular capacity. |
| C．To change their habit of working out. | D．To detect their potential health problems. |
3 . If you thought running was just great for the body, then think again. Scientists have found that the sport not only keeps people fit but also improves your brain power (脑力).
The research found that people who keep fit are more likely to have larger brains, better memories and clearer thinking. They also found that unfit people tended to have smaller brains and reduced cognitive skills. The findings add to a growing body of evidence which links exercise with helping protect the brain against ageing (老化) and also helping it replace dying cells (死细胞). This might reduce the risk of many illnesses and diseases such as Alzheimer’s.
One research paper within its latest issue sees scientists at Kentucky University putting 30 adults aged 59 — 69 on a treadmill (跑步机). Their heart and lung capacity was measured and an MRI scanner was used to assess the blood flow to their brains. Those who were less fit had smaller brains compared to the fitter volunteers who had larger brains. Scientists in Germany followed 21 adults aged between 60 — 77. As they went through a three-month fitness program, they saw improvements in their memory.
Researchers are not yet sure why exercise helps to protect brain cells but some research in mice has produced results. Mice, examined at the National Institute on Ageing, in Baltimore, found that cells in the hippocampus (海马体), an area of the brain used for memory, were actively reproducing while their fatter peers were in decline.
Linda Clare, professor of clinical psychology of ageing and dementia at Exeter University and a member of the Global Council on Brain Health told The Sunday Times: “Moderate intensity aerobic (有氧的) activity such as walking, cycling or running can produce changes in brain structure and function.”
1. Who tend to have larger brains, better memories and clearer thinking?| A．People who are healthy. | B．People who are thin. |
| C．People who are unhealthy. | D．People who are fat. |
| A．Those who were less fit had larger brains. |
| B．Those who were fitter had smaller brains. |
| C．Exercise helps people improve their memory. |
| D．Old people doing exercise improve memory better than young people. |
| A．Walking. | B．Singing. |
| C．Cycling. | D．Running. |
| A．To tell you sport improves your brain power. |
| B．To introduce some good ways to keep healthy. |
| C．To teach you how to best spend time in doing sports. |
| D．To introduce several ways to improve your memory. |
4 . As we age, even if we’re healthy, the heart just isn’t as efficient in processing oxygen as it used to be. In most people the first signs show up in their 50s or early 60s. And among people who don’t exercise, the changes can start even sooner.
“Think of a rubber band. In the beginning, it is flexible, but put it in a drawer for 20 years and it will become dry and easily broken,” says Dr. Ben Levine, a heart specialist at the University of Texas. That’s what happens to the heart. Fortunately for those in midlife, Levine is finding that even if you haven’t been an enthusiastic exerciser, getting in shape now may help improve your aging heart.
Levine and his research team selected volunteers aged between 45 and 64 who did not exercise much but were otherwise healthy. Participants were randomly divided into two groups. The first group participated in a program of nonaerobic (无氧) exercise—balance training and weight training—three times a week. The second group did high-intensity aerobic exercise under the guidance of a trainer for four or more days a week. After two years, the second group saw remarkable improvements in heart health.
“We took these 50-year-old hearts and turned the clock back to 30-or 35-year-old hearts,” says Levine. “And the reason they got so much stronger and fitter was that their hearts could now fill a lot better and pump (泵送) a lot more blood during exercise.” But the hearts of those who participated in less intense exercise didn’t change, he says.
“The sweet spot in life to start exercising, if you haven’t already, is in late middle age when the heart still has flexibility,” Levine says. “We put healthy 70-year-olds through a yearlong exercise training program, and nothing happened to them at all.”
Dr. Nieca Goldberg, a spokeswoman for the American Heart Association, says Levine’s findings are a great start. But the study was small and needs to be repeated with far larger groups of people to determine exactly which aspects of an exercise routine make the biggest difference.
1. What does Levine want to explain by mentioning the rubber band?| A．The right way of exercising. | B．The causes of a heart attack. |
| C．The difficulty of keeping fit. | D．The aging process of the heart. |
| A．Diet plan. | B．Professional background. |
| C．Exercise type. | D．Previous physical condition. |
| A．Middle-aged hearts get younger with aerobic exercise. |
| B．High-intensity exercise is more suitable for the young. |
| C．It is never too late for people to start taking exercise. |
| D．The more exercise we do, the stronger our hearts get. |
| A．Making use of the findings. | B．Interviewing the study participants. |
| C．Conducting further research. | D．Clarifying the purpose of the study. |
5 . A woman who lost one leg in a traffic accident is seeking to break a world record by completing 102 marathon-length runs in 102 days. A marathon is a race that goes 42 kilometers.
Jacky Hunt-Broersma, who lives in the Western American state of Arizona, set her goal last month. And every day since then, she has been running the distance of a marathon. Most of the time, she runs on roads and trails near her home. Sometimes she completes her runs on a running machine. If she keeps successfully completing marathon-length runs every day, she would reach her goal three months later. She would then hold the world record for completing 102 back-to-back marathon runs.
The current world record of 101 marathons was set on April 10 by British runner Kate Jayden. The 35-year-old Jayden does not have a disability.
Hunt-Broersma said that until five years ago, she was not very active. But then she looked into running and decided to give it a try. The sport ended up being quite costly. Currently, she runs on a prosthetic (假体的) leg made out of a strong, light material known as carbon fiber. The carbon fiber blade she uses, which is designed specifically for running, costs about＄10,000.But Hunt-Broersma says her investment (投资) has been well worth it.
One of her recent runs was the world-famous Boston Marathon in Boston, Massachusetts. She finished that race, held on April 18, with a time of 5 hours and 5 minutes.
Hunt-Broersma’s main support team is her husband and their two young children. She is posting her progress online and has also gained a large social media following. As she nears the end of her goal, Hunt-Broersma is hoping to inspire a dream in others, regardless of (不管) their own physical limitations. She tells people, “You’re stronger than you think-and you’re capable of so much more.”
1. What is Hunt-Broersma’s goal mentioned in the text?| A．To make her body stronger. | B．To show off her great power. |
| C．To set a new world record. | D．To prove she can live a normal life. |
| A．Trying hard to earn money for her game. | B．Training strictly for a famous marathon race. |
| C．Running together with a British marathon runner. | D．Running 42 kilometers either indoors or outdoors. |
| A．Caring. | B．Determined. | C．Responsible. | D．Intelligent. |
| A．Encouraging others to achieve their goals. | B．Having more people run the marathon race. |
| C．Drawing more attention to the disabled. | D．Getting more people into her support team. |
6 . Exercise could not only benefit your body, but also improve your memory, researchers found recently. In their paper published on Monday, researchers from the University of California in the US and the University of Tsukuba in Japan introduced their experiment and conclusion.
Scientists invited 36 volunteers who were in their early 20s to do 10 minutes of light exercise before taking a memory test in which they were shown pictures like broccoli (西兰花) or picnic baskets and asked to recall them later. The same experiment was repeated with the same group of volunteers without exercising. “The memory task was really quite challenging,” said Michael Yassa, co-author of the study and a neuroscientist (神经科学家) at the University of California. “We used trickily similar items to see if they would remember whether it was this exact picnic basket or that picnic basket.”
Researchers also scanned some of the brains of the participants during the experiment. They found that the brains of those who exercised strengthened their ability to remember things. This suggested that just 10 minutes of light exercise like walking, yoga or Tai Chi might increase memory.
As all the volunteers in the experiment were relatively young, researchers are still working to look at the effects of light exercise on older people. “Our future goal is to try to develop an exercise prescription that can be used by older adults who might have disabilities or limited movements, but can still take very simple exercise and be able to, perhaps, put off the reduction of cognitive (认知的) skills slowly,” said Yassa.
1. What is the function of Paragraph 1?| A．To correct a mistake. | B．To introduce two universities. |
| C．To give practical advice. | D．To present a research result. |
| A．The people in the experiment were disabled. | B．The items to be chosen were extremely similar. |
| C．The time to solve the questions was too limited. | D．The questions to be asked were too complicated. |
| A．Ability. | B．Benefit. | C．Method. | D．Detail. |
| A．Exercise Can Improve Older People’s Cognitive Abilities |
| B．Ten Minutes of Exercise a Day Might Improve Memory |
| C．Exercise Is Beneficial to Both Young and Old |
| D．Advantages of Exercising Regularly |
7 . Exercising regularly not only helps you keep slim, but also improves your overall health and well-being. Different exercises produce different results, as they focus on alternate parts of the body. There are four broad exercise categories: endurance, strength, flexibility, and balance. Many people often only focus on one exercise type, but including all four in your workout will produce better results and reduce your risk of injury.
Endurance
Endurance exercises increase your breathing and heart rate. By doing endurance exercises, you are working to keep your heart, lungs, and blood-flow system healthy while improving your total fitness. Over time these activities will make everyday activities seem easier.
Strength
If you want to build up your muscles, then strength exercises, which are also known as “resistance training”, are right for you. Even the slightest increase in strength can make a huge difference in your ability to carry out daily tasks. Developing strong muscles also reduce your risk of weak bones.
Flexibility
Flexibility exercises help stretch your body’s muscles. This allows for more freedom of movement for other exercises and can also improve your range of motion, posture, ability to breathe deeply, and blood flow. Also, it reduces the muscle tension caused by stress.
Balance
Balance exercises help prevent falls and are especially important to older adults, helping them stay independent. Most good balance exercises are ones that keep you constantly moving with your feet on the ground. Heel-to-toe walking and standing on one foot are simple ways to improve balance.
1. How can a person benefit most from their exercise routine?| A．By combining different exercise types together. |
| B．By having enough rest between their workouts. |
| C．By concentrating on one training aspect at a time. |
| D．By increasing the frequency of their training gradually. |
| A．Strength and Balance. | B．Flexibility and Balance. |
| C．Endurance and Strength. | D．Endurance and Flexibility. |
| A．Arms. | B．Legs. | C．Waist. | D．Neck. |
8 . Free Online Gentle Yoga Class
About this event
If you are worn out, stressed out, or just looking forward to relaxing your mind, body, and spirit, please join me for 75 minutes of gentle yoga. My mission is to make yoga accessible to everyone, regardless of race, age, gender, income level, or body size. The primary goal of the class is to help you find a small bit of peace and relaxation during stressful time. No experience necessary.
PLEASE READ
All classes are taught via TikTok from Los Angeles, California. You will receive a TikTok link about 30 minutes before class begins. Registration closes one hour before class begins. Only the first 500 applicants to join TikTok will be admitted to the class.
Frequently asked questions:
What time does the class start?
I am located in Los Angeles, California. Class is on Saturday at 6 pm. If you are located in a different time zone and are confused or unsure of when that is, here is a link to a world clock that will allow you to type in Los Angeles and your city to figure out when the class will begin: https://wrwrw.timeanddate.com/worldclock/meeting.html
What do I need?
Just a pillow and a blanket or towel. It doesn’t matter what kind—whatever you have at home will work just fine.
What should I wear?
I recommend wearing whatever makes you feel comfortable like sweatpants or shorts. The main purpose for the class is simply relaxation so we won’t be getting sweaty but you’ll need to wear something you can move around in a little.
What if I don’t want to be on camera?
No worries! You are more than welcome to turn your camera off. You will still be able to see and hear me but you won’t have to be seen if you prefer not to be.
1. What is a must to attend the online yoga class?| A．A slim figure. | B．Being under 60 years old. |
| C．Being the first 500 applicants. | D．A high salary. |
| A．Signing up for the yoga class. |
| B．Making sure of the time of the class. |
| C．Knowing more about the class. |
| D．Waiting to be admitted to the class. |
| A．One can’t attend it without a camera. |
| B．A towel is a must to wipe out the sweat. |
| C．It can be attended from Monday to Friday. |
| D．One should wear clothes that suit movements. |
9 . Lawn Games for Adults That’ll Make You Feel Like a Kid Again
Experts say that engaging in playful activities through adulthood can help lower stress, improve cognitive functions, and build social bonds with others, which is so much more than what your phone can do for you. So what are you waiting for? Round up the family, grab one of these lawn games for adults, and let the good time scroll.
Spikeball Game Set $59.99
The flexible, hula-hoop-sized net stands on its foldable legs and can be taken to the beach or the park to give four players plenty of space to run around. Start the two-on-two game by bouncing a ball off the net, sending it flying toward your opponents—they have three passes between them to send the ball back over to your team. When they miss, you score, and the first one to get to 21 wins.
The Pocket Shot $25.00
Who doesn’t love lining up cans and shooting them down with a slingshot? It’s demanding yet thrilling. The Pocket Shot is a super powerful slingshot that shoots at two or three times the rate of a regular slingshot. It’s super tiny, so it fits in your pocket.
Giant 4-Connect-In-A-Row $79.99
Two players at a time try to insert their red or blue coins into the wooden frame to form a vertical or horizontal line of all the same color. It’s way more challenging than you’d think.
1. According to the first paragraph, in what way can lawn games benefit adults?| A．Stopping their phone use. | B．Boosting their confidence. |
| C．Easing their pressure. | D．Building up their strength. |
| A．Two. | B．Four. | C．Five. | D．Six. |
| A．They need two players. | B．They are cheap to buy. |
| C．They are of pocket size. | D．They take skills to play. |
10 . These days, many gyms require clients to wear masks or face coverings. The good news: research suggests they don't actually hold up your performance.
Researchers at the University of Saskatchewan gathered a group of 7 men and 7 women, ranging from slightly inactive to excellent cyclists and tested the effects of wearing a three-layer cloth face mask, a surgical mask, and no mask on their exercise performance.
The study participants started with a brief warm-up on a fixed bike, then took a progressive intensity exercise test, during which it was vital for them to keep the same pedal rate while the resistance was continually increased until exhaustion (疲惫不堪). Something like the heart rate was recorded every 30 seconds.
The results suggested that wearing a mask had no effect on performance or muscle oxygen levels. Since there was no difference in time to exhaustion between conditions, the highest power reached at the end of each test was similar in mask and no-mask conditions for all participants, Professor Chilibeck explained. Researchers also did not see any effects of the masks during exercise on blood oxygen levels, which wouldn't decrease if breathing was not affected.
And while droplet (飞沫) spread was not measured, all masks used were tested in a previous study in which they were shown to effectively minimize droplet spread, according to Chilibeck. Though the participants represented a wide range of fitness levels, it's important to note that these tests were conducted on a very small sample size, and more research is needed on larger populations to draw sweeping conclusions about the general population.
1. How did the researchers draw the conclusion?| A．By conducting an experiment. | B．By making brief analysis. |
| C．By observing normal cyclists. | D．By doing medical tests. |
| A．Your heart rate may keep stable. | B．You might produce less droplet. |
| C．Your blood oxygen levels will drop. | D．You will feel more tired than before. |
| A．Doubtful. | B．Favorable. | C．Disapproving. | D．Objective. |
| A．Why Should We Train with Masks? |
| B．Why Don't Masks Worsen Our Performance? |
| C．Do Masks Affect Our Performance? |
| D．Can We Train While Wearing Masks? |
