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The main structure of the Datengxia water resources management facility in Southwest China has been completed four months ahead     1     schedule, the Ministry of Water Resources said on Saturday.

The project,     2     is located in the Xijiang River, has eight power generation     3     (unit), each with an installed capacity of 200,000 kilowatts (千瓦). It can     4     (annual) generate more than 6 billion kilowatt hours of electricity.

In cooperation with other reservoirs (水库), the project can help Wuzhou, a city with     5     population of over 2.8 million in Guangxi, deal with once-in-a-hundred-year floods. Previously, the city was only able to hold floods that occur once every 50 years. The project also enables some cities in the Pearl River Delta     6     (resist) floods that happen once every two centuries.

The ministry said the Datengxia facility will also provide strong support for rural development, offering irrigation (灌溉) water to 80,000 hectares of farmland and     7     (address) drinking water shortage for almost 1.4 million people in Guangxi.

The project has already played     8     (significance) roles in the past three years when it was put into trial operation. For example, in June last year, it helped prevent     9     store about 700 million cubic meters of floodwater when the Xijiang River     10     (hit) by a flood. In the peak, it reduced water flow by 3,500 cubic meters per second.

Known as the “Ice Cream Cathedral”, Coppelia is one of the largest ice cream stores in the world.     1     (locate) in Havana, it serves over 30,000 customers per day.

Coppelia consists     2     a two-story building, outside which people queue for ice cream every single day, and a park with hundreds of tables where 1,000 people can enjoy the frozen treats at a time. Originally, Coppelia     3     (build) in a project led by Fidel Castro. He reportedly ordered ice cream from American producer Howard Johnson, and upon tasting it decided to create something bigger and better. His idea was     4     huge hit, and to this day thousands of people continue to enjoy ice cream at Coppelia Park.

Coppelia     5     (be) a major city landmark for both locals and visitors since its opening. But it got more attention when it was featured in one of the most     6     (wide) viewed Cuban Strawberry and Chocolate.

Even today, Coppelia remains extremely popular in Havana. It’s the place     7     most children celebrate their birthdays and many couples go on first dates. It’s also one of Havana’s main tourist     8     (attract). And for about 5 Cuban pesos per scoop, Coppelia’s ice cream is worth     9     (taste). Some visitors even say that Coppelia is serving the best ice cream in the world.

Cubans can be some of the most talkative people in the world,     10     all talks end once they’re seated with ice cream in Coppelia. Conversation at the shared tables is very quiet, with voices hardly heard.

Placed among the busy streets of Washington, D. C. is a large public garden that many Americans have never heard of. The U. S. National Arboretum (植物园) includes     1     collection of flowering plants called azaleas, a field of native plants named ferns, and flowering trees in the dogwood tree area. The garden     2     (establish) by Congress in 1927. It plays a leading part in researching and developing plants like trees, shrubs, flowers, and grasses.

Government scientists are in charge of the 180-hectare area. Their main goal is     3    (strengthen) the U. S. economy by making sure an important kind of agriculture,     4     (call) the nursery industry, continues to perform well. The most recent numbers from the U. S. Department of Agriculture (USDA) show that the ornamental and landscape plant industry creates billions of founds in sales each year.

The arboretum is home to one of the     5     (large) collections of preserved seeds in the world. The National Arboretum Herbarium (植物标本)     6     (house) around 700,000 ex-ample seeds. They include seeds from plants that the USDA considers as     7    (economical) important. Scientists collect many genetically different seeds within a kind of plant from both native and non-native plants. The reason     8     collecting that data is that scientists protect plants from harmful situations like climate change, changed environments, or other new and possible risks.

While the scientists do their work, the public     9     (explore) plants is free to visit the arboretum. Though many people may not know it, the arboretum has had a hand in developing a number of plants     10     are part of American landscaping.

Mountains are important sources of water supply to humans. Among the ecosystem services     1     (provide) by mountains, water supply is     2     most important because of the large quantity of free-flowing water. Mountain water resources are affected by glacier melt, snowmelt run-off or rainfall run-off.

Sustainable (可持续的) use of mountain water resources is important for both humans and global mountain biodiversity in the economic and     3     (society) context of human progress. Particular attention should be given in the water resources     4     (come) from the mountain areas. Sustainability has been     5     (previous) used as a term to describe a concern related to preservation of natural resources for future. The relation between human development and the need     6     (manage) resources forms a principle to design a dialogue regarding environmental needs. So far, a limited number of studies     7     (publish) on mountain water uses and sustainability. Most studies are focused     8     examining prevention, diversions, and mountain water storage during floods or droughts.

However, insights into water use, as well as employing state-of-the-art technologies, are very important from both a technological standpoint and as elements of practical sustainable     9     (solution) . The interplay between academics, policy makers, and decision makers is important in expanding the scientific knowledge of mountain regions and the ways in     10     water resources could be used in a more sustainable way.

Taklimkan Desert,    1    (locate) in the middle of Tarim Basin in Xinjiang Uygur Autonomous Region, is China’s largest desert. It is also known as the world’s second largest shifting-sand desert    2     (cover) an area of over 337,000 square kilometers.

Sand dunes (沙丘) in    3    large desert are usually over 100 meters in height and some are even    4    (high). Because of the wind, the sand dunes are always moving forward, enveloping farms and villages, which    5    (serious) threatens the existence of oases (绿洲)    6    the survival of the local people. Over the past few decades, efforts    7    (make) to fight against desertification. Windbreaks and sand fixation forest belts have been built to improve the ecological environment. Local people have planted poplars and rose willows with the help of experts. There are some places    8    people can even grow corn now. A cross-desert highway has also been constructed to link Luntai and Minfeng counties. Thanks to these efforts, the place has witnessed a(n)    9    (improve) in the living conditions of the local people. Now it’s home to many species of birds, and    10    (it) rainfall is increasing as well.

Quanzhou     1     (add) to UNESCO Heritage List at the 44th Session of the World Heritage Committee,     2     lasted from July 16 to 31 in 2022.

Described by Italian explorer Marco Polo as the     3     (large) seaport in the world, Quanzhou was a starting point of China’s ancient Maritime Silk Road that connected ancient China to Southeast Asia     4     beyond.

With     5     (it) buildings featuring beautiful carvings, Quanzhou is an extremely     6     (value) example of Chinese architecture and art. For example, Luoyang Bridge is the earliest     7     (exist) cross-sea girder bridge in China built during the Song Dynasty. It is 731 meters     8     length and has 44 ship-shaped piers (桥墩). The other landmarks include the Deji Gate Site in the commercial district in the southern part of     9     city and many temples dating from the 13th to the 14th century.

“Quanzhou is an example of China’s seaport culture. It will enable other countries     10     (realize) that China had an open attitude to the world even in ancient times,” said Huang Mingzhen, director of the Quanzhou Museum.