Pico Island, the second largest of the volcano-born Azores, is one of the most hard-won wine regions in the world. By the 19th century, Pico’s wine industry was at its peak,     1     (produce) three native white grape varietals: arinto dos Azores, verdelho and terrantez do Pico. But it wasn’t long before disease and desertification     2     (destroy) most of the island’s vineyards, nearly putting an end to its wine production. But some of Pico’s winemakers regrouped, centering their operations around the village of Criacao Velha,     3     high-quality grapes could still be grown.     4     only around 10 percent of Pico’s original vineyards have been restored (恢复), the appellation of origin has earned some of the country’s top wine honors.

The Baihetan hydropower plant, China's second largest hydropower facility on the upstream branch of the Yangtze river, was     1     (formal) completed on Tuesday after the last generating unit was connected.

The plant is estimated to generate 62.44 billion kilowatt-hours annually,     2     could save about 90 million tons of coal a year and cut annual carbon dioxide emissions (排放) by about 248 million tons.

Baihetan is one of six huge hydropower     3     (station) along the Yangtze river, China's longest. The Three Gorges Corporation, the project's developer, has described the 289-meter dam (大坝) and     4     (it) associated facilities as one of the country's biggest and     5     (challenging) engineering projects.

Construction began in 2017, with a total investment     6     (estimate) at 170 billion yuan. As     7     major project in China's west-east power transmission (输送) program, it will deliver electricity across the country     8     cities in the east.

China goes on     9     (construct) hydropower plants in the southwest, despite a long and severe drought in the summer of 2022 that saw generation volumes drop, forcing regions     10     (limit) power consumption.

The Marble Chapels are an absolute must when visiting Patagonia. The stunning caves are located in the middle of General Carrera Lake, which makes them accessible only by boat. The Marble Chapels arc layers of calcium carbonate formations resulting from wind and water slapping the rocks. The best time to visit is in the austral summer, from December to March.

Yosemite National Park, USA

One of California’s crown jewels, Yosemite National Park is an outdoor playground for nature enthusiasts. The protected park is approximately3108 square kilometres, and it features towering sequoias, dramatic waterfalls, beautiful mountain ranges and sheer granite towers. May or June is the best time to see the waterfalls.

Great Barrier Reef, Australia

One of the world’s greatest spectacles also happens to be one of the most vulnerable. Whether you choose to view this global treasure from a helicopter or go diving to enjoy close encounters with tropical fish, it’s hard not to notice the direct impact of climate change. Warmer temperatures have led to amounts of coral bleaching. If the damage continues at the rate, more than 90 percent of the living coral will erode within the next decade.

Blue Grotto, Malta

Malta is known for year-round warm weather, ancient cities, dazzling beaches, and the Blue Grotto: a series of caves that form high arches along the southern coast of the island. On a clear day, you can see the fluorescent colours reflected on the cave. Try to book a boat tour early in the morning when the sea is calm, the sun is bright, and there are fewer crowds.

The Panjiakou section of the Great Wall in Tangshan city, Hebei province, was built in the 1380s during the Ming Dynasty. In the 1970s, part of it     1     (flood) during the construction of the Panjiakou Reservoir, which resulted in the unique sight of a section of the Great Wall underwater.

Changing water levels caused by seasonal changes have led to the submerged section becoming     2     (severe) eroded (腐蚀). “Our workload increases as the water level falls,” said Meng Qi, an expert at the Hebei Ancient Architecture Conservation and Research Institute. He together with a team of workers     3     (begin) repairing a section of the fallen wall since June.

Zhang Yong, a senior engineer at the institute,    4     is responsible for the repair project, said the repair team follows a principle of minimum intervention and uses traditional methods and materials,    5     the aim of making the repaired sections match the rest of the Great Wall.

The underwater section stands in the middle of the reservoir, so bricks and other building materials have to be taken to a dock,    6     (load) onto a boat and unloaded at the repair site, without any     7     (assist) of modern machinery.

“After several rounds of carrying bricks, our backs were beginning to blister, and after working for several days, our clothes were becoming     8     (wear),” a worker named Liang Wenfu said.

Engineers and workers live at the site in the middle of the reservoir. A boat delivers     9     (supply) of food, water and daily necessities once a week. One of the engineers, Cao Huibin, once stayed on site for 45 days in     10     row.