1 . Table tennis may not seem a reasonable option for someone with no arms — but Ibrahim Hamadtou doesn't believe in limits. The 48-year-old Egyptian Paralympian breaks the barrier by holding the paddle (球拍) in his mouth and using his right foot to serve the ball.

Hamadtou, who lost his arms in a train accident at the age of ten, was drawn to table tennis after being challenged by a friend. "I was once watching a match between two of my friends," Hamadtou explains. "They disagreed on a point, When I counted the point in favor of one of them, the other player told me, 'Mind your own business as you will never be able to play.' It was that statement that fired me up to decide to play table tennis."

It took Hamadtou three years to master the sport. He says the biggest challenge was figuring out the best way to control his body. "I was trying first to use the bat under the arm, and I also tried using other things, which weren't working so well. Finally, I tried using my mouth. It took me nearly a year of practice to get used to holding the paddle with my mouth and making the serve. With practice and playing regularly, this skill was improved."

The Egyptian's incredible talent came to light in 2014 when he was awarded the best Arab Athlete of the year. He won a silver medal at the 2016 African Championships, qualified for his first Paralympics in 2016 at 43, and then again for the 2020 Tokyo Games at 48.

The inspiring athlete says, "The disability is not in arms or legs but to give up in whatever you would like to do."

3 . As we know, the 2020 Summer Olympic Games is delayed to 2021 for Convid-19.

It's Tokyo's second time hosting a Summer Olympics, 57 years after their first time in the spotlight. These Games will see the introduction of some exciting new sports to the lineup (阵容), too: skate boarding will make its Olympic debut, as well as karate (空手道), surfing and sport climbing.

There will be plenty of classics to watch as well, from the ever — popular swimming and gymnastics (体操) events to track and field (田径) and team sports. And while Olympic trials have yet to take place, we'll most likely be seeing the return of superstars like the 2016 gymnastics standout Simone Bilesimming record — setter Katie Ledecky and track star Sydney McLaughlin, who was just 16 when she competed in the Rio Olympics and has been on the rise ever since.

The 2020 Summer Olympics will begin on July 23, 2021 and run until Aug 8, 2021, with the opening ceremony on July 23 and the closing ceremony on Aug 8. In between, audiences around the world will tune in to two weeks of nonstop sports. Most of the big swimming events will take place over the first week. while the track and field competitions ramp up (进展) in the second half.

For the second time in its history, Tokyo is hosting the summer Olympics they first hosted back in 1964. (Japanhas also been home to two Winter Olympics, at Sapporo in 1972and Nagano in 1998.) Tokyo is the first city in Asia to host an Olympics twice.

There are many changes to the Olympics this year. The biggest change to the Olympics for 2020 is the addition of the five new sports and the return of baseball (absent in 2016), plus a few new events, like the three-on-three basketball competition.

One change sure to receive a lot of attention are the adjusted gymnastics team rules: instead of fielding a team of five athletes, each country will be whittled down to four all-around contestants (参赛者), with two more teammates added to compete only in individual events.

4 . Alysa Liu is an ice skater. In 2016, the then 10-year-old girl became the youngest intermediate figure skating （花样滑冰）champion in U.S. history. In 2018, Liu became the youngest to compete in and win the U.S. junior championships.

In January, 2019, she made history again at the Geico U.S. Women's Figure Skating Championships. At the championships, things were initially going well for the defending U.S. champion Bradie Tennell. But later Tennell had a falling in her performance. Meanwhile, Liu became the first and youngest U.S. woman to land three triple axels （三周半跳）in competition.

Though Liu made them look, easy, triple axels are extremely challenging. The skater has to jump from the outside edge of one skate, turning in the air. "Double" or “triple" refers to the number of rotations （旋转）the skater completes before landing. The term is a little misleading given that the skater has to do an extra half rotation, meaning that for a triple, the skater is actually completing 3.5 rotations. To be successful, the skater has to have both incredible body strength and control.

When asked about her great performance, Liu thought it was not worth showing off. And she was enthusiastic about preparing for bigger games. But Liu was ineligible to compete at the 2019 World Figure Skating Championships in Japan due to the minimum age requirement of 15. However, that didn't bother her.

Liu fell in love with ice skating during her first lesson at a center. She showed such talent that Laura Lipetsky, who was teaching the group lessons, asked her father to let her receive private lessons. Lipetsky said, “She wanted to learn, and I wanted to guide." The two have been inseparable since then. In 2017 Laura sent Liu to the University of Delaware for a certain analysis that researchers have created to help outstanding American skaters improve their jump techniques.

Liu has been homeschooled since the age of 10. She gets her homework done between daily practices, and usually eats dinner in the car on her way home. Though that might appear to be a lot for someone so young, Liu takes it happily.

6 . A country famous for its Alps and its skiers has a new champion. His name is Dominic Thiem, awakening from an unlucky start to win his first Grand Slam title（大满贯冠军）on his fourth try and becoming the first Austrian to win the US Open（Tennis Championships）.

Showing world-class resilience（韧性）in a 2-6, 4-6, 6-4, 6-3, 7-6 victory over his longtime friend Alexander Zverev of Germany, the third-ranked Thiem made history, winning the first Open final to be decided by a fifth-set tiebreaker（决胜局）. He joins Thomas Muster, who won the French Open in 1995, as the only Austrian to win a major tennis championship.

Thiem, of course, is also the first man from any nation to take a major title before no fans, during the COVID-19.

Thiem soldiered through the toughest test of all, a match that took 321 points and four hours and one minute to decide. His cheerfulness and relief were noticed as he collapsed to the court, but it was a little bittersweet, considering that his opponent was a good friend.

"It's amazing how this journey brought us to share this moment with you," Thiem said during the award ceremony. I think we both deserved it…You' re going to make it 100 percent. You're going to make your parents proud."

Zverev, on his chair, was fighting tears. When it was time to talk, he congratulated Thiem and said, "I wish you would have missed a little bit more so I could have held that prize up, but here I am giving the silver medalist speech. "He continued. Now he was really crying.