2 . On Oct. 11, hundreds of runners competed in a cross-country race in Minnesota. Melanie Bailey should have _________ the course earlier than she did. Her _________ came because she was carrying a _________ across the finish line.

As reported by a local newspaper, Bailey was more than two-thirds of the way through her _________ when a runner in front of her began crying in pain. She _________ to help her fellow runner, Danielle Lenoue. Bailey took her arm to see if she could walk forward with _________. She couldn’t. Bailey then _________ to let Lenoue climb onto her back and carried her all the way to the finish line, then another 300 feet to where Lenoue could get _________ attention.

Once there, Lenoue was _________ and later taken to a hospital, where she learned that she had serious injuries in one of her knees. She would have struggled with extreme __________ to make it to that aid checkpoint without Bailey’s help.

As for Bailey, she is more __________ about why her act is considered a big __________. “She was just crying. I couldn’t __________ her,” Bailey told the reporter. “I feel like I was just doing the right thing.”

Although the two young women were strangers before the __________, they’ve since become friends. Neither won the race, but the __________ of human kindness won the day.

3 . To become the Olympic champion in the individual (个人) all-around event, Gabby Douglas had to leave everything she _________ best. She had to _______   her bedroom in Virginia. She had to say _________ to her two dogs and to the beach, where she loved to _________ waves on her board. But it was _________ to take the leap (飞跃), however _________ it would be. Even at 14, Douglas knew that. So she _________ about 1,200 miles away from home, to _________ with a coach from China. She lived with a family she had never _________ and everything was new to her.

As it turned out, Douglas did __________ what she needed to do to become Olympic champion when she __________two Russians. The Chinese coach __________ Douglas into one of the best gymnasts in the __________, helping her skyrocket from an __________ member of the national team to the top of the sport. By __________ the Olympic all-around title, she became the first black woman to do so. She __________ the competition from beginning to end. She said she had felt __________ all along that she would win.

Not so long ago, Martha Karolyl the coordinator (联络人) of the women’s national team, did not think Douglas had what it __________ to be an Olympian. As time went by, she thought __________ that she could make the London Games — and win.

“I’m going to inspire so many people,” she said. “I’m ready to __________.” And shine she did.

4 . Making day-to-day activities more intense for a few minutes — such as briefly stepping up the pace of a walk — could offer people who don’t exercise some of the health benefits that exercisers enjoy, according to a new study of roughly 25, 000 adults who reported no exercise in their free time.

Those who include three one- to two-minute bursts of intense activity per day saw a nearly a 40 percent drop in the risk of death from any cause compared with those without such activity. The risk of death from cancer also fell by nearly 40 percent, and the risk of death from cardiovascular (心血管的) disease dropped almost 50 percent, researchers report online December 8 in Nature Medicine.

“This study adds to other literature showing that even short amounts of activity are beneficial,” says Lisa Cadmus-Bertram, a physical activity epidemiologist (流行病学家) at the University of Wisconsin-Madison. “So many people are daunted by feeling that they don’t have the time, money, motivation, transportation, etc. togo to a gym regularly or work out for long periods of time,” she says. “The message we can take is that it is absolutely worth doing what you can.”

The researchers were looking for bursts of intense activity that met a definition determined in a laboratory study, like reaching at least 77 percent of maximum heart rate and at least 64 percent of maximum oxygen consumption. In real life, the signs that someone has reached the needed intensity level are “an increase in heart rate and feeling out of breath” in the first 15 to 30 seconds of an activity, Stamatakis says.

Regular daily activities offer several opportunities for these bursts, he says. “The simplest one is maximizing walking pace for a minute or two during any regular walk.” Other options, he says, include carrying grocery bags to the car or taking the stairs. “The largest population health gains will be realized by finding ways to get the least physically active people to move a little more.”

It is well known that aero(航空) sports have been popular in the US, New Zealand and other countries for years. China’s Hainan is famous for its natural     1     (beautiful) of endless sea, and golden beaches.     2     a warm climate and over 300 sunny days each year also provide favorable conditions for aero sports here.

Aero sports, including items such as skydiving and hot air ballooning,     3     (be) in rapid growth in China, and Hainan has seen the combination of such sports and tourism thriving over recent years. A great many frequent visitors     4     China’s southernmost island province choose to admire Hainan’s fantastic scenery not just at the beach, but also from high above with the help of     5     (professional) qualified skydiving coaches. Visitors can give full expression to their feelings and personalities, and liberate     6     (they) from their sometimes boring everyday life by participating in aero sports. What is shown in statistics is     7     a skydiving club saw a record-breaking single-day reception of 166 customers during this year’s Spring Festival holiday.

With the     8     (rise) popularity of aero sports, as well as advantageous policies in building the Hainan Free Trade Port,     9     increasing number of people from home and abroad have settled in Hainan. The province     10     (host) several national-level aero sports events in the past few years and is striving to build a national sports tourism demonstration zone by 2025.

7 . 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.