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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(橡皮筋). 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.

Languages have been coming and going for thousands of years, but in recent times there has been less coming and a lot more going. When the world was still populated by hunter-gatherers, small, tightly knit (联系) groups developed their own patterns (模式) of speech independent of each other. Some language experts believe that 10000 years ago, when the world had just five to ten million people, they spoke perhaps 12000 languages between them.

Soon afterwards, many of those people started settling down to become farmers, and their languages too became more settled and fewer in number. In recent centuries, trade, industrialization, the development of the nation-state and the spread of universal compulsory education, especially globalization and better communications in the past few decades, all have caused many languages to disappear, and dominant languages such as English, Spanish and Chinese are increasingly taking over.

At present, the world has about 6800 languages. The distribution of these languages is hugely uneven. The general rule is that mild zones have relatively few languages, often spoken by many people, while hot, wet zones have lots, often spoken by small numbers. Europe has only around 200 languages, the Americas about 1000, Africa 2400, and Asia and the Pacific perhaps 3200, of which Papua New Guinea alone accounts for well over 800. The median number (中位数) of speakers is a mere 6000, which means that half the world's languages are spoken by fewer people than that.

Already well over 400 of the total of 6800 languages are close to extinction(消亡), with only a few elderly speakers left. Pick, at random, Busuu in Cameroon (eight remaining speakers), Chiapaneco in Mexico (150), Lipan Apache in the United States (two or three) or Wadjigu in Australia (one, with a question-mark): none of these seems to have much chance of survival.

I work with Volunteers for Wildlife, a rescue and education organization at Bailey Arboretum in Locust Valley. Trying to help injured, displaced or sick creatures can be heartbreaking; survival is never certain. However, when it works, it is simply beautiful.

I got a rescue call from a woman in Muttontown. She had found a young owl(猫头鹰) on the ground. When I arrived, I saw a 2-to 3-week-old owl. It had already been placed in a carrier for safety. 

I examined the chick(雏鸟) and it seemed fine. If I could locate the nest, I might have been able to put it back, but no luck. My next work was to construct a nest and anchor it in a tree.

The homeowner was very helpful. A wire basket was found. I put some pine branches into the basket to make this nest safe and comfortable. I placed the chick in the nest, and it quickly calmed down.

Now all that was needed were the parents, but they were absent. I gave the homeowner a recording of the hunger screams of owl chicks. These advertise the presence of chicks to adults; they might also encourage our chick to start calling as well. I gave the owner as much information as possible and headed home to see what news the night might bring.

A nervous night to be sure, but sometimes the spirits of nature smile on us all! The homeowner called to say that the parents had responded to the recordings. I drove over and saw the chick in the nest looking healthy and active. And it was accompanied in the nest by the greatest sight of all — LUNCH! The parents had done their duty and would probably continue to do so.

Rome can be pricey for travelers, which is why many choose to stay in a hostel (旅社). The hostels in Rome offer a bed in a dorm room for around $25 a night, and for that, you'll often get to stay in a central location with security(安全) and comfort.

Yellow Hostel

If I had to make just one recommendation for where to stay in Rome, it would be Yellow Hostel. It's one of the best-rated hostels in the city, and for good reason. It's affordable, and it's got a fun atmosphere without being too noisy. As an added bonus, it's close to the main train station.

Hostel Alessandro Palace

If you love social hostels, this is the best hostel for you in Rome. Hostel Alessandro Palace is fun. Staff members hold plenty of bar events for guests like free shots, bar crawls and karaoke. There's also an area on the rooftop for hanging out with other travelers during the summer.

Youth Station Hostel

If you're looking for cleanliness and a modern hostel, look no further than Youth Station. It offers beautiful furnishings and beds. There are plenty of other benefits, too; it doesn't charge city tax; it has both air conditioning and a heater for the rooms; it also has free Wi-Fi in every room.

Hotel and Hostel Des Artistes

Hotel and Hostel Des Artistes is located just a 10-minute walk from the central city station and it's close to all of the city's main attractions. The staff is friendly and helpful, providing you with a map of the city when you arrive, and offering advice if you require some. However, you need to pay 2 euros a day for Wi-Fi.

It was the first day of our new grade. Everyone in the classroom was chatting happily, excited to see each other again after the long holidays. When the door slid open, all of us stopped talking and turned to look. In came our teacher Ms. Sullivan, followed by an ordinary-looking boy, "This boy's name is Rafael." Ms. Sullivan announced. "He's a transfer student（转校生）, and he's going to be in our class starting from today. Make sure all of you welcome him warmly." The class clapped. But I didn't want to have a second look at the newcomer, for he had no outstanding qualities considering his small figure and casual T-shirt.

"Oh, I forgot to mention one thing." Ms Sullivan spoke up. "Rafael actually has hearing problems. Normally he would have hearing aids on, but his old ones have just been broken. His doctor suggested that he stay at home until he got his new ones. However, Rafael insisted on attending his first day of school. So if you want to communicate with him, you have to write it on a piece of paper." This single speech sent the whole class up into an uproar（嘈杂）. Some students looked at each other with expressions of surprise. Others voiced cries of concern out of pity. Ms Sullivan calmed everyone down. "I'd like someone to personally help him out throughout the day. Do I have any volunteers?" "How can a disabled person be intelligent?" I thought to myself. I refused to raise my hand, expecting someone else would. But nobody did or said anything. Dead silence spread across the classroom. It was by total bad luck that my eyes happened to meet Ms. Sullivan's. "How about you, James?" She asked me. "Is it okay for you to take care of Rafael just for today?"

It is difficult to refuse a request by someone, especially if that person is a teacher. I sighed and nodded slightly. Ms. Sullivan gestured for Rafael to sit beside me and then asked us to share our holiday stories with the class.

注意：1．续写词数应为150左右；2．请按如下格式作答。

Paragraph 1:Immediately, the class became excited. 

Paragraph 2:Then Rafael rose and walked onto the platform. 

注意：1．写作字数80左右；2．可适当增加细节，以使行文连贯。

On Oct 4, Gong Linna and her musician friends gave a concert, performing （public） the new album at the Divine Music Administration, one of the five major structures at the Temple of Heaven.

her first qinge album, featuring classic songs played on the guqin, this new album, Song of the Barbarian Reed-Whistle in Eighteen Stanzas,（present）a guqin piece written by Cai Wenji, female poet and composer from the Han Dynasty. （divide） into 18 parts, the guqin piece expresses the composer's emotion on her way back home 12 years after she （take）prisoner by the Xiongnu nomads（游牧民族）, becoming a chieftain's wife and bearing two children.

On the album, was recorded in Beijing in February, Gong worked with Lin and Wang again. She also invited more friends, sheng player Nie Yunlei and percussionist Li Shang,（play） with her.

According to Lin, the new album is quite different from was presented on Gong's first qinge album, which sounded diverse and displayed the singer's ability to master different music styles. This recording is of an independent work of great （long）, consisting of 18 parts and it takes around 40 minutes to perform in its entirety.

China's star swimmer Wang Shun is no stranger to newspaper or magazine covers. Wang, an Olympic champion, has already 1 three gold medals, a silver and a bronze in Hangzhou Asian Games. His story reveals how years of 2 and setbacks turned him into a world-beater.

3 his childhood, Wang has fond memories of the moment that sparked his 4 curiosity about swimming. "The first time I got into the pool was with my father. I followed him and I didn't know how to swim. I remember I swallowed a lot of water, and then I saw an adult 5 out of the water, so I just 6 his head and climbed onto his shoulder."

As he began to train 7 , though, Wang often struggled with the long hours in the pool, and would sometimes sit in the locker room to 8 training. Now, with Olympic gold in his trophy cabinet, he is 9 he didn't give up.

"I've been through many 10 times in my career. In 2019, for instance, my performances were not ideal and I was really 11 at the time about this. I even thought about 12 . But my coach stuck with me and kept helping me improve, mentally and physically," Wang said. "Then in June I sprained my ankle, which 13 me to stop training for two weeks. The 14 process was pretty tough. I was just thinking these setbacks won't stop me from trying to win Olympic gold."

At 27, age is now a new challenge for Wang. However, with Team China increasingly 15  scientific methods of training and support, he is confident he can remain competitive into his thirties.

Have you ever wondered about the significance of emotions in our life? Emotions play a critical part in our lives.  Let me give you an example here: When you are with your loved ones, your mood changes instantly right? If they feel happy then you feel happy, and if they feel angry/sad then so do you. Starting to get what I was talking about in the beginning? Should you be feeling like that? In certain situations, yes, but every time, no!

You may find it very hard to believe but it is not our responsibility to bear other people's feelings, this is something that they have to do themselves. Apart from this, we must never be controlled by our own feelings. Let me give you an example here. In the middle of a fight between your spouse or partner, they will say, "You really hurt my feelings". Sometimes, you might even say: "You are making me angry". What does this imply? Whenever this happens, you start blaming yourself, especially for the emotions that others are feeling. This is known as emotional reflection. You must learn to control this.

What should be your course of action here? It might seem rude when I say this but you really need to hear it. You are not responsible for how others feel!  Al l in all, we must learn to be emotionally accountable and mature, doing so will result in a better and happier life.

Now, a new trial finds antiviral medications, when given soon after a child is diagnosed with type 1 diabetes（糖尿病）, might help preserve those vital beta（β） cells.

Antiviral drugs could be "used alone, or as part of combination treatment, to rescue insulin（胰岛素）-producing beta cells at diagnosis of type 1 diabetes," said a team that presented their findings at the annual meeting of the European Association for the Study of Diabetes, in Hamburg. So-called beta cells in the pancreas（胰腺） can generate insulin. But in some cases, an uncontrolled auto-immune response causes the body to attack its own beta cells, ruining a child's capacity to produce insulin and cause type 1 diabetes. So people with type 1 diabetes rely on insulin injections to maintain healthy blood sugar levels the rest of their lives.

The researchers have been investigating the root causes of the autoimmune "malfunction" behind beta cell destruction for years, and they discovered that low-grade infections with common germs often occur in the pancreatic cells of people newly diagnosed with type l diabetes. So what if these people were given antivirals—in this case, pleconaril and ribavirin—to rid the pancreas of these infections?

The new trial, led by Dr. Mynarek, sought to answer that question. The team followed96 children aged 6 to 15 who were all diagnosed with type 1 diabetes in the study. The children were randomly selected to receive either the two antiviral medicines or a placebo （无效对照剂） for six months. Mynarek's group tracked C-peptides levels in the blood, which "mirror the insulin production in the pancreas," implying that the higher a child's C-peptide levels on tests, the better their pancreas was producing insulin. According to their findings, while C-peptide levels dropped a full 24% in children who received the placebo, it fell by just 11% in those who got the antivirals. That suggests the treatment helped protect the child's pancreatic beta cells from destruction.

The researchers concluded that "further studies should be done to evaluate whether antiviral treatment could delay the progression of beta-cell damage leading to clinical type l diabetes."