Playing with apps on smart phones is very common among young people. Let's try some special apps and enjoy them.

    Nearly 7,000 medical workers in the team supporting Central China's Hubei province left the capital, Wuhan, the hardest-hit city in the novel coronavirus outbreak in China, and went back to their hometowns on Tuesday, March 31, marking the largest scale departure (离开) of medics (医学工作者)since the first group left on March 17. The Civil Aviation Administration of China has organized 51 planes to support the departure.

    More than 42,000 medics from other parts of the country have joined the battle with local medics to fight against COVID-19. The support teams came from 21 provinces, cities and autonomous regions(自治区) and some of them worked on several battlefields during the past months. The support team from the First Hospital of China Medical University in Shenyang, was among those in the group. Sixty members were in charge of treating COVID-19 patients in 100 beds in the Union Hospital and treated 174 patients who have been seriously ill since they arrived on Feb 10.

    Wang Zhenning, the leader of its support team, expressed his thanks to the Wuhan people who offered great help to them. "I am proud to witness and play a role in history. We've been here, seen it happen and become better. Wuhan is our second hometown. We will forever care about the city and the people fighting with us." he said.

    Wuhan city government showed great thanks to all medics in a letter, expressing their gratefulness of the medics' efforts to save lives in the battle. "Thanks to your arrival, Wuhan welcomes today's peace and stability. We will always remember your kindness!" the letter said. In it, the city government also invited the medics to visit Wuhan in the future for sightseeing. Local people volunteered to line up and see medics off as the medics left for home after finishing their mission(使命) in Wuhan. Wuhan traffic police led the way for medics to the airport.

    When people think of tigers, words like" strong" and " dangerous" come into their mind. But now, the big animal is calling for our help. There were once eight kinds of tigers in the world, but three died out during last century. In the past 70 years, the number of Siberian tigers has gone from as many as 300 to somewhere between 18 and 22.

   World Wildlife Fund started a programme. It is about to put an end to tiger poaching(非法狩猎) and save wild tigers. China, together with 12 other countries, has joined in. The aim is to double the number of wild tigers in the next ten years.

According to the research by Chinese officers and WWF, the Siberian tiger is already one of the planet's most endangered animals. "If the government doesn't do anything, it's quite possible that there will be no more Siberian tigers in China in 10 to 20 years." said Zhu Chunquan, director at WWF Beijing office.

    Wild animals such as deer and wild bears are tigers' main food. The poaching of these animals is the greatest danger to tigers. Another one is the trap(陷阱). "Volunteers from WWF remove traps every year, but we cannot clear all the traps ourselves," Zhu said. The most important thing people can do is to save the animals tigers eat." To protect the tigers, we need to call on more people to stop hunting wild animals."

    IQ scores have been measured (测量)since 1916, when Alfred Binet developed his intelligence list as follows:

    Some very famous people are known for their high IQ level. Jill St. John who has the highest score on this list was a major American film actress during the 1960's and 1970's. Jill was chosen to the University of California at the age of 14.

    Scientists have estimated (估算)the IQ scores that some famous historical people might have got. This was done by looking at their work and their ideas and the way they put them together Leonardo da Vinci gets that high score not only for his art but also for his idea of the helicopter (直升飞机). Without modern scientific tools, he created a lot of design drawings and patterns, which was ahead of his time.

    Phil White has just returned from an 18,000-mile, around-the-world bicycle trip. White had two reasons for making this epic journey. First of all, he wanted to use the trip to raise money for charity, which he did. He raised £70,000 for the British charity, Oxfam. White's second reason for making the trip was to break the world record and become the fastest person to cycle around the world. He is still waiting to find out whether he has broken the record or not.

    White set off from Trafalgar Square, in London, on 19th June, 2004 and was back 299 days later. He spent more than 1,300 hours in the saddle (车座) and destroyed four sets of tyres and three bike chains. He had the adventure of his life crossing Europe first, and then the Middle East, Asia, Australia, New Zealand, and finally the Americas. Amazingly, he did all of this with absolutely no support team. No jeep carrying food, water and medicine. No doctor. Nothing! Just a bike and a very, very long road.

    The journey was lonely and desperate at times. He also had to fight his way across deserts, through jungles and over mountains. He cycled through heavy rains and temperatures of up to 45 degrees, all to help people in need. There were other dangers along the road. In Iran, he was chased by armed robbers and was lucky to get away with the little money he had. The worst thing that had happened to him was having to cycle into a headwind on a road that crosses the south of Australia. For 1,000 kilometers he battled against the wind that was constantly pushing him. This part of the trip was slow, hard and depressing, but he made it in the end. Now Mr. White is back and wants to write a book about his adventures.

Can you imagine going to university at age 14 This year, Jia Zijun, from Henan, did just that. He became the 1 freshman （大一新生）at Beihang University and plans to study aircraft design.

"I didn't know I was the youngest 2 I got here, and it feels quite cool!" Jia told The Paper.

Jia took part in the college entrance exam in.June and got a total score of 642. People often think students like him must be geniuses （天才）.But Jia owes（归功于）his 3 mainly to curiosity and good study habits.

" When I was in Grade 1, I was 4 about what we were going to learn next. So I borrowed Grade-2 5 and learned the lessons during my summer holidays. I enjoyed exploring new information, " he said. Because of this, Jia skipped （跳过） Grade 2, and then Grade 4.

As he went to high school, he found things were getting 6 to learn. So he started to make plans every day and 7 goals for himself. "I would 8 follow the plan, and gradually（逐渐地）I'd see my 9 . "

Jia would also 10 what he learned each day before going to bed. If there was something he couldn't remember well, he'd take a look at it the next morning.

"I was not good at English in high school, so I printed the vocabulary list and 11 it onto my bed. Every moming when I woke up, I 12 them, and it's a good way to remember things."

When Jia felt stressful, he had a 13 way to relax: working on math problems. "I'd find difficult problems to 14 myself, and when I worked it out, I felt really happy."

As he told The Paper, he hopes he can 15 his curiosity and study habits in university, and keep challenging himself to become a better person.