A 5,100-year-old dam, capable of flood control and irrigation (灌溉), has been identified as China’s earliest     1     (know) water engineering project. The Xiongjialing Dam is part of the Qujialing relics site in Jingmen, China’s Hubei Province.

The dam was initially built around 5,100 years ago on a branch of the Qingmudang River. The     2     (exist) dam measures 2 meters in height, 13 meters in width and 180 meters in length. It has a water storage area to the east, equal to the size of three West Lakes, and     3     8.5-hectare irrigation area to the west, with the     4     (late) found to have been an expanse of prehistory rice field. A floodway at the northern side of the water storage area allowed for discharge (排放) of extra water during flood seasons. The dam     5     (construct) with local earth, which was mixed with plant roots     6     (increase) the structure’s toughness.

The design of the water project suggests that prehistoric     7     (ancestor) in the area had learned to control water use rather than     8     (simple) defending against floods and droughts. The Qujialing relics site is famous for witnessing the first-ever discovery     9     carbonized rice along the midstream of the Yangtze River. Researchers say the dam further illustrates that, in the Neolithic Age, the area had a mature rice-growing agriculture. That’s     10     this relies heavily on irrigation.

2 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

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.

A skywell, or “tian jing” in Mandarin, is a typical feature of a traditional home in southern and eastern China.     1     (expose) less to the outdoor environment, a skywell is different from a northern Chinese courtyard. Skywells are     2     (relative) common in historic residences in large areas of southern and eastern China.

In today’s rapidly urbanising China, fewer and fewer people live in skywell dwellings,     3     a revival of interest in traditional Chinese architecture is leading some of historic buildings with skywells     4     (restore) for modern times. Meanwhile, some architects are drawing     5     (inspire) from skywells to help keep new buildings cooler, which is a method     6     (combine) design and technology to cool a building without the use of power.

However, there are some     7     (challenge) for bringing skywells into modern designs. The mechanisms of courtyards facilitating natural lighting, ventilation (通风) and rain collection are well known, but applying these principles     8     (need) to be site-specific. Because traditional skywells had different shapes, sizes and features, which were highly dependent     9     their natural surroundings. Adding skywells into modern buildings requires designers to be sensitive to their project’s context and situation, making it difficult to apply them as     10     universal solution.

First-time visitors to Chengdu may find it to be a city with rich cultural heritage. The emblem(标志) of a gold leaf,     1     (feature) four flying birds surrounding the sun, can be seen everywhere in the city. The emblem, which represents Chengdu,    2    (choose) as the symbol of China Cultural Heritage by the State Administration of Cultural Heritage in 2005.

After the discovery of the Sanxingdui Ruins in the city of Guanghan in 1929,    3    was believed to be one of Sichuan’s most important archaeological finds, a 3,000-year-old gold-leaf sunbird was unearthed at the Jinsha Ruins in 2001. In 2018, Chengdu made the decision     4     (become) a world cultural city. In recent years, Chengdu’s efforts to globalize have accelerated,    5     a series of major international cultural and sports activities have been held, laying the foundation for it to build     6     into a world-famous tourist city.

Chengdu’s     7     (attract) range from giant pandas     8     the poetic legacy of the Du Fu Thatched Cottage. Hidden in thick greenery, the Temple of Marquis Wu was built as     9     memorial hall in honor of Zhuge Liang and now China’s personification of loyalty and wisdom. The city also offers a museum including a cottage modelled after the poetic descriptions of Du Fu, one of China’s     10     (great) poets, emphasizing his influence on Chinese literature.

The city of Zibo has never seen so many visitors.

As the sun begins to set, the aroma of sizzling meat falls the air and draws in more     1     (hunger) customers. On each street, queues stretch outside restaurants for more than a hundred meters. Some restaurants even run out of key ingredients as early as 7p.m.     2     the night. All hotels are also operating at full capacity.

The city was barely known by outsiders     3     it went viral on Chinese social media platforms recently. Most visitors are young people, who share their experience of traveling to Zibo to experience the city’s barbecue culture on social platforms,     4     (attract) even more visitors.

Zibo- style barbecue’s classic three-piece set contains roast lamb, green onions, and nan bread, which,     5     (combine), make a mouth-watering combo (组合). The fame of Zibo barbecue used to be limited to just Shandong Province.     6     (previous), barbecue in Northeast China was much more popular across the country.

Behind Zibo’s sudden fame     7     (be) the efforts and services of the local government, as well as a good reputation of local businesses,     8     receive favorable reviews from visitors who share their experiences online.

To promote Zibo-style barbecue, Zibo has launched two dozen “special barbecue trains,” where local tourism officials would serve tourists     9     (they). At the city’s train station, shuttle buses transport tourists to various barbecue stalls directly. Netizens joke that the high-speed trains     10     (pack) with visiting tourists and that the air onboard is filled with cumin.

The Yellow Mountain is one of the most famous and beautiful     1     (mountain) areas in China. The location     2     (list) as a World Heritage Site by UNESCO in 1990.

The area isn’t named this way due to the color of the mountains,     3     because it was renamed after the legendary Yellow Emperor (Huang Di) in AD 747.     4     is said that the Yellow Mountain is the place     5     the Yellow Emperor, the supposed ancestor of all Chinese, lived, refined precious medicines and became a supernatural being.

Outstanding natural beauty is its number one feature. The Yellow Mountain’s classic     6     (attract) are known as its “Four Natural Wonders”: the imaginatively named pines, oddly-shaped rocks, seas of cloud, and hot springs.

Yellow Mountain pines are particularly hardy,     7     (seem) to twist directly out of the smooth rock. Many old pines have been named according to their appearance or some associated legends.

Greeting Guest Pine is     8     (definite) the most famous pine at the Yellow Mountain. The 10-meter-high tree grows like a man standing by the path and stretching out his hand     9     (greet) guests. Many Chinese hang a poster of the Greeting Guest Pine in their living rooms and restaurants     10     a decoration.

Lushan National Park, in the south of Jiujiang City, Jiangxi Province, is a well-known tourist attraction both in China and abroad. It has appealed     1     countless visitors on account of its natural views and cultural relics.

The national park covers an area of 500 square kilometers and has more than 90 mountain peaks (山峰). The tallest one of these is Hanyang Peak which has a     2     (high) of 1,473.4 meters. The park-owes its reputation to its     3     (wonder), elegant and impressive highlights such as waterfalls and rocks. There are 12 main scenic areas, together with 37 attractions. The major     4     (spot) include Wulao Feng, Sandie Spring, etc.

Wulao Feng,       5     is located in the southeast of Lushan, is 1,436 meters above sea level. Its five parallel mountain peaks once formed a single one, and standing on the top, you will     6     (reward) with an amazing view of the distant mountains, trees, lakes, and a seemingly endless sky.

Sandie Spring     7     (lie)below Wulao Feng and drops through three rough tiers (层) with a fall of 155 meters. The upper part is like snow     8     (fall) down to the pond; the middle reach wanders and twists, dancing in the air;the lower level looks like a dragon running in the pond. This is thought     9     (be) the best of the Lushan waterfalls. It is said that you are not     10     true visitor here if you miss Sandie Spring.

China’s First National Park

China’s first national park in Northwest of China’s Sanjiangyuan area,     1     (cover)a total area of 123,100 square kilometers, was officially established in 2020     2     schedule. The national park is the country’s calling card, and unlike nature reserves,     3     protect unique species, national parks stress the protection of the entire ecosystem.

Under the national park management, herders and     4     (farmer) will be turned into the forces of     5     (environment) protection in the Sanjiangyuan area. The work     6     (expect) to provide jobs, boost incomes and give people an     7     (encourage) to protect the environment. The ecological environment of the Sanjiangyuan area has greatly improved in recent years. The grassland coverage of the area has risen sharply     8     (compare) with the last decade. The last decade also saw a significant increase in the number of wild animals, because the number of Tibetan antelopes     9     (be) over 70,000 from less than 20,000 in     10     1980s.