1 . 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. |
2 . Common Mistakes New Runners Make
Running is a great way to get in shape and just about everyone can do it. However, many make a number of common mistakes, which can interfere (妨碍) with training or lead to injury.
·Doing too much too soon
One of the biggest mistakes new runners make is doing too much too soon. Slowly easing into a training program will help reduce the risk of injury, so you can continue on with your new running routine
·
Beginners might think they need to run every day (or nearly every day) to meet their fitness or weight-loss goals, but this couldn’t be further from the truth. Running is a high-impact activity which can be really hard on your body. So it’s important to give your body a rest between workouts.
·Not wearing the right equipment
•Running through pain
| A．Not taking rest days |
| B．If you’re just starting out |
| C．Comparing yourself to others |
| D．Running can be uncomfortable at times |
| E．It’s important not to use the same muscles |
| F．While it may be true that you don’t need expensive equipment to take up running |
| G．Experts suggest increasing your running distance by no more than 10% each week |
3 . If you are already making the time to exercise, it is good indeed! With such busy lives, it can be hard to try and find the time to work out.
Your productivity is improved. Exercising makes you more awake and ready to handle whatever is ahead of you for the day.
Your metabolism(新陈代谢) gets a head start.
There are a lot of benefits to working out, especially in the mornings. Set your alarm clock an hour early and push yourself to work out! You will feel energized all day long.
| A．You will stick to your diet. |
| B．Your quality of sleep improves. |
| C．You prefer healthy food to fast food. |
| D．There is no reason you should exercise in the morning. |
| E．You can keep your head clear for 4-10 hours after exercise. |
| F．After you exercise, you continue to burn calories throughout the day. |
| G．If you are planning to do exercise regularly, or you’re doing it now, then listen up! |
4 . Before there was the written word, there was the language of dance. Dance expresses love and hate, joy and sorrow, life and death, and everything else in between.
“I adore dancing,” says Lester Bridges, the owner of a dance studio in Iowa. “I can’t imagine doing anything else with my life.” Bridges runs dance classes for all ages. “Teaching dance is wonderful.
So, do we dance in order to make ourselves feel better, calmer, healthier? Andrea Hillier says, “Dance, like the pattern of a beating heart, is life. Even after all these years, I want to get better and better.
| A．So why do we dance? |
| B．Dance in the U.S. is everywhere. |
| C．If you like dancing outdoors, come to America. |
| D．My older students say it makes them feel young. |
| E．I keep practicing even when I’m extremely tired. |
| F．Dancing seems to change their feeling completely. |
| G．They stayed up all night long singing and dancing. |
5 . 阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。
The frightening day of our diving test was here. Our parents thought we were lucky to have an Olympic-size swimming pool at the school. My mom stressed that the swimming pool was one of the best in our city. But I didn’t feel happy about it at all. Instead, I felt afraid of the swimming pool. It was mainly because I was terribly shy.
I was so shy that I always sat at the back of the room in class so I’d not be called upon to read. As for the present physical education class each Monday morning, I would work my way to the back of the line forming at the diving board so I would not have to practice the dives.
Now, it was another Monday morning - the morning of our diving test. My blood ran cold when the teacher Ms. Robbins announced that we would be graded for our final on the most difficult dive- the jackknife. And she added, “This diving test is important. The one who fails has to spare time in the following Monday mornings to practice diving in this swimming pool and attend this test again.”
My body kept shaking with fear as the line to the scary diving board shortened. As I watched, each student seemed to perform the challenging dive effortlessly. And shortly I would have to attempt something that I had never even practiced before.
Then I remembered someone telling me that when you picture yourself doing a skill over and over, it’s just as effective as physically practicing that skill. So I watched carefully as each classmate jumped at the end of the board once, added a jump for height, folded their body in half to reach for their toes, and finally straightened out like an arrow for going into the water. After carefully watching for a while, I was actually in a state of surprise, because all of a sudden I realized that it was possible for me to perform these four steps of diving.
Eventually all classmates except me finished jumping. The teacher announced that it was my turn.
注意：1. 续与词数应为150左右；
2. 请按如下格式在答题卡的相应位置作答。
With my heart knocking wildly, I walked down the diving board towards its end.
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Knowing I failed, I climbed out of the pool, embarrassed.
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6 . It has been difficult to sit on the bench most of the time, watching my team from the sideline. I always
Away from the game, it’s easier to put my thoughts together, rather than letting my
Even if I don’t play much, I participate in every
Should I move on？Or should I stay with my team and continue playing basketball with great passion just a little longer？The
| A．wonder | B．promise | C．accept | D．realize |
| A．careless | B．worthless | C．selfless | D．homeless |
| A．quit | B．stay | C．struggle | D．delay |
| A．beliefs | B．chances | C．efforts | D．experiences |
| A．related to | B．attached to | C．added to | D．devoted to |
| A．perform | B．respond | C．identify | D．survive |
| A．call | B．give | C．take | D．hold |
| A．upset over | B．nervous about | C．scared of | D．annoyed at |
| A．hardships | B．possessions | C．feelings | D．thoughts |
| A．imagination | B．admission | C．desire | D．passion |
| A．encouragement | B．embarrassment | C．excitement | D．amusement |
| A．bravely | B．proudly | C．regretfully | D．painfully |
| A．team | B．day | C．time | D．game |
| A．conflict | B．conclusion | C．challenge | D．decision |
| A．attracts | B．brings | C．instructs | D．controls |
7 . Race walking shares many fitness benefits with running, research shows, while most likely contributing to fewer injuries. It does, however, have its own problem.
Race walkers are conditioned athletes. The longest track and field event at the Summer Olympics is the 50-kilometer race walk, which is about five miles longer than the marathon. But the sport’s rules require that a race walker’s knees stay straight through most of the leg swing and one foot remain in contact with the ground at all times. It’s this strange form that makes race walking such an attractive activity, however, says Jaclyn Norberg, an assistant professor of exercise science at Salem State University in Salem, Mass.
Like running, race walking is physically demanding, she says. According to most calculations, race walkers moving at a pace of six miles per hour would burn about 800 calories per hour, which is approximately twice as many as they would burn walking, although fewer than running, which would probably burn about 1,0000 or more calories per hour.
However, race walking does not pound the body as much as running does, Dr. Norberg says. According to her research, runners hit the ground with as much as four times their body weight per step, while race walkers, who do not leave the ground, create only about 1.4 times their body weight with each step.
As a result, she says, some of the injuries associated with running, such as runner’s knee, are uncommon among race walkers. But the sport’s strange form does place considerable stress on the ankles and hips, so people with a history of such injuries might want to be cautious in adopting the sport. In fact, anyone wishing to try race walking should probably first consult a coach or experienced racer to learn proper technique, she says. It takes some practice.
1. Why are race walkers conditioned athletes?| A．They must run long distances. |
| B．They have to follow special rules. |
| C．They are qualified for the marathon. |
| D．They are good at swinging their legs. |
| A．It’s less challenging physically. |
| B．It’s more popular at the Olympics. |
| C．It’s less likely to cause knee injuries. |
| D．It’s more effective in body building. |
| A．Doing regular exercises. | B．Having a medical checkup. |
| C．Hiring an experienced coach. | D．Getting experts’ opinions. |
| A．Objective. | B．Doubtful. |
| C．Tolerant. | D．Supportive. |
8 . Running is often tiring and a lot of hard work, but nothing beats the feeling you get after finishing a long workout around the track.
But while it’s long been believed that endorphins (内啡肽) —chemicals in the body that cause happiness—are behind the so-called “runner’s high”, a study suggested that there may be more to this phenomenon than we previously knew.
According to a recent study published by a group of scientists from several German universities, a group of chemicals called endocannabinoids (内源性大麻素) may actually be responsible for this familiar great feeling.
To test this theory, the scientists turned to mice. Both mice and humans release high levels of endorphins and endocannabinoids after exercise. After exercising on running wheels, the mice seemed happy and relaxed and displayed no signs of anxiety. But after being given a drug to block their endorphins, the mice’s behavior didn’t seem to change. However, when their endocannabinoids were blocked with a different drug, their runners’ high symptoms seemed to fade.
“The long-held notion of endorphins being responsible for the runner’s high is false. Endorphins are effective pain relievers, but only when it comes to the pain in your body and muscles you feel after working out,” Patrick Lucas Austin wrote on science blog Lifchacker.
Similar studies are yet to be carried out on humans, but it’s already known that exercise is a highly effective way to get rid of stress or anxiety. The UK’s National Health Service even prescribes (开药 方) exercise to patients who are suffering from depression. “Being depressed can leave you feeling low in energy, which might put you off being more active. Regular exercise can improve your mood if you have depression, and its especially useful for people with mild to moderate (中等的) depression,” it wrote on its website.
It seems like nothing can beat that feeling we get after a good workout, even if we don’t fully understand where it comes from. At least if we’re feeling down, we know that all we have to do is to put on our running shoes.
1. What did scientists from German universities recently discover?| A．Working out is a highly effective way to treat depression. |
| B．The runner’s high could be caused by endocannabinoids. |
| C．Endorphins may contribute to one’s high spirits after running. |
| D．The level of endorphins and endocannabinoids could affect one’s mood. |
| A．To find what reduces the runner’s high symptoms. |
| B．To see the specific symptoms of the runner’s high. |
| C．To identify what is responsible for the runner’s high. |
| D．To test what influences the level of endocannabinoids released. |
| A．Effect. | B．Goal. | C．Opinion. | D．Question |
| A．They can help ease depression symptoms. |
| B．They are the best way to treat depression. |
| C．They only work for those with serious depression. |
| D．They can help people completely recover from depression. |
9 . A 99-year old Australian swimmer appears to have broken a world record for his age group in the 50 m freestyle. The likely new world record holder, George Corones, clocked 56.12 seconds at an official event in Queensland—a new benchmark for the 100-104 age category. He faded the previous record of 1:31. 19, which was set by British swimmer John Harrison in 2014, by 35 seconds. It will now be affirmed by the sport’s governing body.
Corones, who is quailed for the record because he turns 100 in April, said he was “quite delighted” and “over the world” by the result. He said he had been overwhelmed by the “roaring” crowd on the Gold Coast on Wednesday. The event, in which he was the only entrant (新成员), had been specially staged for him to challenge the record.
Corones was a keen swimmer in his youth but only began to learn swimming again at the age of 80. He gave it up at the beginning of the World War Ⅱ, and he didn’t think he would have a swim of any description until he retired. Then he started swimming again for exercise.
Racing undeniably (不可否认的) challenged him physically, but it was manageable with preparation. On average he swims three times a week, and also fits in gym sessions. “At this age it takes a while to get going... you get exhausted much more easily, but if you do it properly, the rewards are astronomical,” he said.
Corones will challenge the 100 m freestyle record on Saturday night, believing he can beat the current mark of 03:23.10, which was also set by Harrison.
“I’m not a young man by any means, but I am rally looking forward to it and confident I can do it very well,” he said.
1. What is the author’s purpose of writing paragraph 1?| A．To show who John Harrison is. | B．To introduce the topic of the text. |
| C．To emphasize the importance of age. | D．To explain the reason for writing the text. |
| A．Original. | B．Huge. | C．Brief. | D．Precise. |
| A．Challenge Harrison again. | B．Prepare for his 100th birthday party. |
| C．Celebrate his success. | D．Challenge the 100 m backstroke. |
| A．It’s never too late to learn. | B．He who laughs last laughs best. |
| C．One good turn deserves another. | D．Laziness in youth spells regret in old age. |
10 . Sportsmen in the running races of the Olympics are great athletes, but even the slow runners of the running world — joggers in the park — have good health. A study out this week in the Journal of the American College of Cardiology finds that even 5 to 10 minutes a day of slow running is enough to extend life by several years, compared with not running at all.
The new study focused on a group of more than 55, 000 men and women aged 18 to 100. About a quarter of them were runners. Over 15 years, those who ran just 50 minutes a week or fewer at a slow speed were less likely to die from either cardiovascular (心血管的) disease or other causes, compared with those who didn’t run at all.
The study suggests relatively low efforts are necessary to benefit from jogging, but it can be better to exercise more often. “A little bit is good but a little more is probably better,” says Dr. Aaron Baggish. A 2013 study in Denmark suggested that the secret of maximum longevity is up to 2. 5 hours of running a week.
Although running can make you less likely to have cardiovascular disease, it doesn’t entirely take the risk away from you. “There is no question that the healthier you are and the more exercise you do, the longer you’ll live and the better your quality of life will be,” Dr. Baggish says. “But it doesn’t mean you’ll never get sick.”
“Many long-term runners do not run because they want to live longer,” Dr. Baggish notes. “They run because it makes them feel better every day.”
For these runners, the cost of feeling good can be injuries, so Dr. Baggish supports the value of what he calls “active rest.” His belief, not supported by any recent research, is that it’s a good idea to spend 25% of exercise time over the course of a year running at a slow speed or doing other activities like swimming or biking.
1. What does the new study mainly show us?| A．The best way to run. | B．The best time to run. |
| C．The importance of running. | D．The popularity of running. |
| A．It can result from running often. | B．It’s not completely preventable. |
| C．It’s not so serious as most people think. | D．It can be treated by some kind of exercise. |
| A．Staying active all the time. | B．Swimming more, run less. |
| C．Having a big rest after doing sports. | D．Taking a little light exercise. |
| A．Health. | B．Business. | C．Society. | D．Medicine. |
