【推荐1】Most people walk between 4 and 6.5 kilometers per hour. But with the Moonwalkers, a pair of walking devices (装置), you can increase your speed by up to 250 percent. The amazing devices can allow you to walk up to 11 kilometers per hour!

The Moonwalkers were invented by an American company called Shift Robotics. A pair of the Moonwalkers looks like the lower part of a pair of roller skates (旱冰鞋). The walking devices can be fixed to the bottoms of usual shoes. But you can’t skate with the Moonwalkers. You can just walk with them the way you do with usual shoes.

Each Moonwalker weighs about 1. 9 kilograms. The machine in it makes eight wheels go. There’s also a gearbox (变速箱) and a few sensors (传感器) in each Moonwalker. These sensors collect information about the wearer’s walking. The gearbox then uses the information to help change the speed of the Moonwalkers. When it’s necessary, the gearbox will slow down the shoes to prevent accidents. And when the wearer has to take the stairs (楼梯), he or she can lock the wheels to go up and down the stairs safely.

【推荐2】America is a mobile society. Friendships between Americans can be close and real, yet disappear soon. They don’t feel hurt. If the same two people meet again, even years later, they pick up the friendship. This can be quite difficult for us Chinese to understand. Friendships between us develop more slowly but may become lifelong feelings, extending (延伸) deeply into both families.

★ . Although Americans treat friends warmly in their personal everyday lives, they don’t show their politeness to them if it requires a great deal of time. But in China, we are usually generous with our time. We, as hosts, will appear at an airport even in the middle of the night to meet a friend. We may take a day off from our work to act as guides to our friends. It is opposite in America. Americans cannot manage the time to do a great deal with a visitor outside their daily plans. They will probably expect the visitors to get themselves from the airport to the hotels. And they expect the visitors will phone them from there. Once the visitors arrive at their homes, the welcome will be full, warm and real.

For Americans, it is often considered more friendly to invite a friend to their homes than to restaurants, except for business matters. Americans are ready to receive us foreigners at their homes, share their holidays, and their home life. So accept their hospitality (好客) at home and enjoy your visit in America!

At 10:44 am on June 5th, 2022, the Shenzhou XIV spacecraft rose into the sky. Another three Chinese astronauts, Chen Dong, Liu Yang and Cai Xuzhe, set off for the Tiangong Space Station.

During their six-month stay, they will set up tools and do medical tests. It’s not an easy job to do all these things. Chinese astronauts get difficult training before going to space. All the Chinese astronauts are excellent pilots（飞行员）with thousands of hours of flying experience. They also receive hundreds of classes to prepare for space travel.

One of the hardest parts is the high-G training. Sitting in a super-fast spinning（旋转的）machine, astronauts’ faces change shape. They can’t help crying. Blood can’t get to their heads well, causing even blindness（失明）. Astronauts must operate the spacecraft under such conditions.

When Chinese astronauts do the high-G training, they have a red button（按钮）on hand. If they can’t continue, they can stop the machine. But for more than 20 years since China set up its first astronaut team in 1998, nobody has ever used it. “The ‘stop’ button is never in our hearts,’’ said Wang Yaping, the first Chinese woman to take a spacewalk.

Another exercise is the underwater training which lasts seven hours each time. In a weightless environment, the astronauts have to wear the 200-kilo clothes and do the training in 10-metre-deep water without eating or having a break. After each training, they might lose up to 2kg of body weight.

“We may have to do such training every day for many years,” said Wang. “But there is no ‘give up’ in our dictionary.” They are our heroes.

【推荐1】Lao She Teahouse opened in 1988. Its name is after the famous Chinese writer, Lao She (1899-1966). At Lao She Teahouse, visitors sit in an old Beijing setting, and can drink the best tea in China. They watch all kinds of traditional Chinese performance (表演) arts and enjoy delicious traditional Beijing-style snacks (小吃). Since it opened, Lao She Teahouse has entertained (款待) many famous people from China and all over the world. The teahouse can hold (容纳) up to 250 guests at once. At Lao She Teahouse, there are opera fans activities from 2:30 to 5:00 on Monday, Wednesday and Friday afternoons. There are also opera and folk music performances from 2:30 to 5:00 on Tuesday and Thursday afternoons of each week. People can enjoy performances of Peking Opera, folk arts, acrobatics and magic shows from 7: 40 to 9:20 every evening.

To get there, take the subway to Qianmen Station.

Tel: 6302-1717; 6303-6830; 6304-6334.

Ticket price: 40 yuan (US$5), 60 yuan (US$7.2), 80 yuan (US$10), 100 yuan (US$12.5), 120 yuan (US$15) or 130 yuan (US$16) according to different seats, tea and pastries.