3 . Canadians are blessed with an abundance of natural wonders with enough lakes, mountains and rivers to explore for a lifetime. We’ve also got some of the most amazing waterfalls on Earth.

Horseshoe Falls Niagara Falls, Ontario

Niagara Falls are the most famous waterfalls in Canada — and understandably so. Actually they are made up of three different falls, and the fittingly named Horseshoe Falls is the only one located on the Canadian side, which is the most powerful in North America. Multiple viewing options are available including tourist ships and sightseeing buses.

Nailicho (Nirginia Falls) Nahanni National Park Reserve, Northwest Territories

Coming in at twice the height of Niagara Falls, this massive waterfall is located on the South Nahanni River in the Northwest Territories. The remote location means it receives only about 1,000 visitors per year who must make their way by either boat or floatplane.

Takakkaw Falls — Yoho National Park, British Columbia

Takakkaw translated from Cree loosely means “the magnificent (壮丽的)”, and it’s a suitable word for the second-highest waterfall in Canada. After a steep drive up a winding road, Takakkaw Falls is only a short distance from the parking lot along a wheelchair accessible path.

Bridal Veil Falls — Bridal Veil Falls Provincial Park, British Columbia

Pretty and delicate, Bridal Veil Falls is located just east of Chilliwack, British Columbia, and really does look like its name, with water gently pouring over smooth rock. An easy 15-minute walk to the waterfall takes you through rich leaves. Tables are available to have a meal outdoors, and there are lots of opportunities for viewing wildlife along the way.

Chinese netizens recently expressed     1     (amaze) at a map online clearly marking the country’s historic relics (文物). The map     2     (make) by Wu Yunjie, who was born in the 1990s.     3     (interest) in history, Wu would often spend his spare time travelling around the country, when he was in college, and     4     (explore) ancient sites.

In 2020, he started collecting information on cultural relics and uploaded the data to the mapping software. As many historical sites in rural areas cannot be located     5     (specific) , Wu did a lot of field research. “The job is rather difficult     6     I have much joy in it．I’m happy to make people more aware of the huge and rich historical heritage (遗产) from China’s long history,” he said.

Now, the map     7     (include) nearly 10,000 relics or museums. Many valuable temples, bridges and towers     8     have been lost in the country are also shown on the map. One post online said “The ancient tower around my house on the map! I can’t wait to visit     9    .”

However, in Wu’s eyes, the map is just     10     step forward, as it records a very small part of the cultural relics in the country, and he still has a long way to go.

The year 2023 witnessed the significant protection plan released for Beijing’s Central Axis (轴线),     1    (stretch) for 7.8 kilometers through the Chinese capital. World-famous landmarks like the Forbidden City, Tian’anmen Square, the Temple of Heaven are located along the central axis,     2     construction began in the Yuan Dynasty (1271-1368), and     3    (last) until the Ming and Qing dynasties.

The protection plan for Beijing’s Central Axis from 2022 to 2035 was released in January of 2023, marking     4     new stage in its conservation, sustainable development and application as a UNESCO World Heritage Site.

The plan is said to be one of the necessary steps for UNESCO World Heritage status, and     5    (it) release and implementation (实施) will play an important role in the protection and     6    (manage) of the capital’s central axis.

Alongside regulations on the protection of the Central Axis     7    (carry) out earlier, the plan is in line     8     the requirements of World Heritage conservation and provides an     9    (effect) strategy for the conservation.

The 21 member countries of the World Heritage Committee will decide on whether Beijing’s Central Axis can     10    (add) to the World Heritage List at the committee’s 46th annual conference in 2024. If the application succeeds, it will reinforce Beijing’s top position among cities worldwide by number of World Heritage Sites.

Sarek’s mountains used to     1     (cover) by vast sheets of ice. Around 9,000 years ago, this ice melted,     2     (leave) behind about 100 glaciers. In 1909, Sarek was made a national park to keep the land in its    3     (nature) state.

9 . At ancient sites across the Amazon River basin, mysterious plots of unusually rich soil dot (点缀) the landscape. Scientists have long debated the origin of this “dark earth”, which is darker in color than surrounding soils and richer in carbon. Some people think this dark earth formed naturally, but the latest research has shown that modern Kuikuro people in Brazil create similar soil around their villages on purpose, which adds evidence to the idea that long-ago Amazons deliberately made such soil too. Perron, an earth scientist at MIT, reviewed interviews of Kuikuro people conducted by a Kuikuro filmmaker in 2018 and found that Kuikuro villagers actively make dark earth by using ash, food bits and controlled burns. “When you plant in hilly land, the soil is weak,” explained elder Kanu Kuikuro in one of the interviews. That is why we throw the ash, manioc peelings and manioc pulp. When comparing soil samples from ancient and modern sites, researchers found “striking similarities” — both were far less acidic than surrounding soils and contained higher levels of plant-friendly nutrients.

Analyses also revealed that dark earth holds twice the amount of carbon as surrounding soils on average. Scans (扫描) of the Xingu region suggest that the area is dotted with dark earth, and that hold as much as about 9 million tons of carbon — the annual carbon emissions of a small, industrialized country. “This number could roughly equal the annual carbon emissions of the United States when all dark earth across the Amazon is taken into consideration,” Perron says.

Figuring out the true value of carbon stored in the Amazon’s dark earth will require more data. Still, the research has significant influences on the Amazon’s future. The technique highlights how ancient people were able to live in the Amazon by developing sustainable farming that doubled as a carbon-storing technique. With more and more greenhouse gases entering the atmosphere, it could also provide a blueprint for developing methods of sustainably locking atmospheric carbon in the soil, helping fight climate change.

The Great Wall of China is a series of fortifications (防御工事) built along an east-to-west line across the historical northern borders of China.

In 221 BC, Emperor Qin Shihuang     1     (order) the walls of the Qin, Zhao and Yan kingdoms in the north to be joined after he united China. The new wall stretched (延伸) from Lintao to Liaodong, with a total     2     (long) of over 20, 000 li.

With the rise of the Tang Dynasty, the Great Wall lost     3     (important) as a fortification. During the Song Dynasty, the Chinese     4       (force) to withdraw (撤退) under threat from the Liao and Jin peoples in the north,     5     took over many areas on both sides of the Great Wall. The powerful Yuan Dynasty     6       (establish) by Genghis Khan finally controlled all of China.

The Great Wall became again a military fortification for Mongolians. It was during the Ming Dynasty that the Wall took on     7     (it) present form. At that time, it stretched some 6, 300 kilometers from the Yalujiang River in the east to Jiayuguan Pass in the west, and is known     8     the Ten Thousand Li Wall.

Today, the Great Wall is     9       (general) recognized as one of the most impressive     10       (wonder) in the world. It is the only man-made structure that is visible from space.