1 . When you want to go somewhere, you can easily find your way by using a map app on your smartphone- Your smartphone "knows" where you are and can tell you where to go.

This is possible with the help of satellite navigation （卫星导航）systems. On June 23, with the last satellite of China's Beidou Navigation Satellite System launched into space, the global network of 59 satellites has been completed. On July 31, Beidou started providing full-scale global services. More than 120 countries and regions are now using Beidou services. The BDS is entirely built by Chinese engineers, which is one of four global navigation systems, along with US' GPS, Russia's GLONASS and the European Union's Galileo,

It's difficult to imagine the great impact those satellite orbiting （围绕…运转）the Earth have on our daily lives- When you unlock one of Hellobike's bicycles, you are using the BDS. The popular bike-sharing company came out with two new bike models this year that are equipped with the positioning （定位）service. "The intelligent lock on each bike receives Beidou satellite signals and sends positioning information to the data center, which will help collect big data on the bikes and estimate users* riding demands in advance according to the data/ Chu Yiqun, a manager of Hellobike told Xinhua News Agency. Users can also find shared bikes more accurately thanks to Beidou's global positioning accuracy （精确）of 2.34 meters.       ,

Beidou adopts a unique two-way communication system, including its ability to receive messages sent by people from areas with poor communication signals. It allows people to send text messages up to 1,200 Chinese characters in length when mobile phone services are interrupted (中断）by natural disasters.       

Beidou can be used in areas that include fanning, public services and business. It has a positioning accuracy of under 10 meters. This summer; people along the Yangtze River used Beidou-based device to monitor （监测）floodwaters in real-time with an accuracy of just a few centimeters.

2 . "Can I see my baby?" the happy new mother asked. When the baby was brought in her arms, the mother began to _________ sadly. The baby had been born without _________.

Luckily, time proved that the baby's hearing was _________. It was only his appearance that was imperfect. When he rushed home from _________ one day and cried for being called a freak (怪人) by his classmates, his mother sighed, _________ that his life would be full of sadness.

Two years went by. The boy's father _________ with the family doctor. The doctor believed he could transplant on a pair of outer cars if they could be got. Then the father said to the son. "You are going to the _________, son. Mother and I have someone who will give the ears you need. But it's _________." The operation was a great _________. Later he got married to a beautiful wife and found a(n) __________job.

The secret was __________ for many years, but the day did come finally. The son stood with his father over his dead mother. __________, the father put out an arm and raised his wife's thick, brown hair only to __________ that she had no outer ears.

Real __________ doesn't lie in what is done and known, but in what is done but __________.

4 . At the foot of the Tianmu Mountain in Zhejiang, a homestay (民宿) is attracting travelers from far and wide, which has won architectural medal at the 2021 German iF Design Awards.

The owners of the homestay are a couple in their late 30s who decided to return to their hometown three years ago. Li Xiumei used to be in charge of a division at a company in Hangzhou, and her husband was a sales director. It was an ordinary situation where Li’s husband was on business trips a lot and Li still worked on weekends. City life sometimes is not easy.

In 2018, they quit jobs and went back to Dongtianmu village, which lies in a forest of bamboo. The first time they drove into the village was one late afternoon. The cooking smoke was rising from the foot of the mountain, which gave them a very different feeling from the city.

The homestay was built beside her husband’s old countryside house. The old house is preserved (保留), while a brand-new building was built on its side and the whole site is made up of four courtyards. It has been updated to have a hall, a tea room, a kitchen, a dining room. Japanese cherry trees are planted in the east courtyard. A swimming pool is placed in the west courtyard, with a bar located on one side.

Li and her husband love gardening and music, and their new home gives them enough space to continue their interests and relax in the heart of nature. Li wants to share the quiet country life, so she makes her new home a homestay. In 2019, the homestay became an online hit after guests shared their experiences on social media. “The longer I stay here, the more I feel it was the right choice to come back, and this is more meaningful than making money,” Li says.

7 . Let’s take a minute to think about the water we use. The human body is 60% water and we need to drink lots of water to be healthy. When we are thirsty we just go to the kitchen and fill a glass with clean water. We use water indirectly too. For example, farmers, who produce the food we eat, use water to make the plants grow.     1    

    2    , but this is not the case for many people around the world. Did you know that around 750 million people do not have clean water to drink? That’s around one in 10 people in the world.     3    Every year over 500,000 children die from diarrhoea (腹泻) from dirty water. That’s around 1,400 children every day! Also, in some countries children walk many kilometers every day to get water.    4    , they can’t go to school. Therefore, they don’t have time to learn how to read or write and don’t get an education.

In 1993 the United Nations decided that March 22nd is the World Day for Water. On this day every year, countries around the world hold events to educate people about the problems of dirty water and that clean water is something that everyone should have around the world.     5    . In this way, they know how it feels to walk a long distance carrying heavy bottles.

People give them money to do this and all the money helps get clean water to as many people as possible around the world.

9 . Riding a Mobike on the street, you might hear people speaking Chinese aloud.    1    Walking into a store, you may see Huawei smartphones for sale. This isn't referring to China, but Manchester, UK.    2    Indeed, Chinese products have gone global.

    3    But to meet local people’s tastes, Chinese restaurants have made some changes to the dishes. “One example is the meat,” said Yin Hang, who is studying at the University of Wollongong in Australia. "We like to eat meat with the bone in, but people here don't. So Chinese restaurants provide big pieces of meat without bones, even for fish.

    4    In many cities in Europe, stores sell TCL televisions, Haier fridges and Lenovo computers, reported Reuters. More than half of US-owned drones(无人机)are Chinese models, according to China Daily. They're not simply made in China, but designed and developed in the country.

In the past, most Western people thought Chinese products were cheap and unreliable.     5     “Made in China” has become cool and more people trust Chinese brands. For example, Huawei, one of China's major smartphone makers, overtook Apple in global smartphone sales for the first time in June and July last year, behind only Samsung, noted consulting(咨询)firm Counterpoint Research.

“They are beautiful and offer some unique features American phones don't have,” CNN once said about Chinese smartphones.

10 . Each nation has many good people who help to take care of others. For example, some high school and college students in the United States often spend many hours as volunteers in hospitals, orphanages (孤儿院) or homes for the aged. They read books to the people in these places, or they just visit them and play games with them or listen to their problems.

Other young people volunteers go and work in the homes of people who are sick or old. They paint, clean up, or repair their houses, do their shopping or mow their lawns. For boys who no longer have fathers there is an organization called Big Brothers. College students and other men take these boys to baseball games or on fishing trips and help them to get to know things that boys usually learn from their fathers.

Each city has a number of clubs where boys and girls can go to play games or learn crafts. Some of these clubs show movies or organize short trips to the mountains, the beaches, museums or other places of interest. Most of these clubs use a lot of high school and college students as volunteers because they are young enough to remember the problems of younger boys and girls

Volunteers believe that some of the happiest people in the world are those who help to bring happiness to others.