With fossil records dating back to 400 million years ago, sharks have lived even     1     (long) than the dinosaurs and many other forms of life. There are more than 500 species of sharks     2     (discover) on earth.

These sharks,     3     are so important to the natural order of marine ecosystems, are faced with     4     (extinct). While they have been an important resource for coastal communities in the developing world for     5     (century), this unique balance is in danger of being lost forever.

As our oceans are     6     (serious) influenced by the greenhouse effect, to restore these water bodies is the key     7    protecting sharks. What’s more, sharks’ wide range of species adds difficulty to the conservation efforts of protecting these     8     (amaze) creatures. And the great demand for their fins     9     (increase) the urgency of the task over the past few years. Through the effective strategies, we are trying to restore the balance between humans     10     sharks.

A five-month-old bird has set a new record for long-distance migration(迁徙)after    1    (fly)13,560 kilometers without stopping over a period of 11 days. The previous one was set two years ago by another bird that     2    (cover) about 12,000 kilometers in 11 days.

    3    (million)of birds set for the sky for a long and quite hard journey to get away from the coming cold, feed, and have babies for    4    next few months. A lot of them travel through distances of over 10,000 kilometers. This year, an    5    (astonish) 13,560 kilometers was covered by a bird,    6    set a new Guinness record in the process. This happened last month when the young bird had its     7    (depart) from Alaska to New Zealand for the winter. The bird took off    8    October 13 from the Yukon-Kuskokwim Delta in Alaska, followed the usual route across the Pacific Ocean down to New Caledonia and through the Tas-man Sea, before making an unexpected 90-degree turn towards Tasmania rather than New Zealand.

Scientists had the ability     9    (know) the bird’s record flight with the help of a tiny tracker that only weighed 5 grams. An expert said the bird lost “half or more of its body weight” during the 11-day flight, but it made it arrive at the dry land    10    (safe).

China has planted millions of trees in its northwest over the past two decades as part of its     1     (amaze) fight against the expanding deserts.

The effort has paid off. Around 2000, deserts across the country were still increasing by 10,400m² a year. But in 2017, they were decreasing by more than 2,400m² a year. The     2     (achieve) was confirmed by a study from the Laboratory of Climate and Environmental Sciences in Paris.

“In 1999, the Chinese government began planting millions of trees in its Grain for Green Program. It     3     (carry) out to repair damaged farmland in northwestern China,     4     is roughly the size of France,” says Philippe Ciais, a researcher at the laboratory. “I was there a few months ago, and it is indeed surprising that once bare landscapes are now almost fully covered by plants.”

“The growth of forests is significant     5     necessary progress in the fight against desertification,” says Jianping Huang, a researcher at Lanzhou University. “But it’s still too early to determine whether it has solved the problem. Researchers have found that many of the plant species     6     (introduce) to the region use more water     7     native vegetation. It could lead to water shortages for humans.”

The national forestry department has recognized the error. In recent years, it has worked more closely with researchers and communities to find ways to plant less     8     (thirst) plants that have economic value.

“All     9     (program) need to take into account local conditions,” the forestry department said in March “    10     (we) efforts should go towards keeping vegetation sustainable, rather than simply planting more trees.”

Queensland is an Australian state     1     (cover) the continent’s northeast, with a coastline stretching nearly 7,000km. Its offshore Great Barrier Reef,the world’s largest coral reef system, hosts thousands of marine     2     (species).

Queensland is also home     3     some of the most magical islands and the largest expanse of coral in the world. It may well be the closest you ever get to paradise.You can    4     (free) while away the hours on a deserted beach full of palm trees, go for a sail around the coral reef, on throw     5     (your) into the various water sports. Spread like jewels in the Pacific Ocean, these Australian islands stretch from Lady Elliott in the south to Lizard in the north,    6     all are a delight to visit.

Hayman Island    7     (position) within the heart of Australia’s Great Barrier Reef     8     (be) probably one of the most luxurious resorts in the world with dreamy beaches, unique wildlife and mouth-watering cuisine. For something a little more particular, try Bedarra, privately owned and with only sixteen villas(别墅). For a touch of history,go to Lizard Island,     9     Captain Cook landed in 1770. This is also where divers go. To get away from it all, go to Heron Island, a port of peace and quiet. Fraser Island has the     10     (large) sandy beach in the world, Hook has a wonderful National Park... the list is endless

Two villages have been named the Best Tourism Villages 2022 by the World Tourism Organization, thanks to their achievements in balancing tourism with economic development while    1    (stick) to environmental protection.

According to the organization, 32 villages in 18 countries and regions including Austria, Chile and China    2    (award) the recognition late on Tuesday. China’s Dazhai village in the Guangxi Zhuang autonomous region    3    Jingzhu village in Chongqing won the recognition.

Figures cited from the county’s culture and tourism bureau show that tourism development in Dazhai    4    (bring) great economic benefits to villagers and created more jobs for them since the village started to develop tourism around 2003.

    5    the bureau has pointed out, though the village only received 32,000 visits in 2004, the number rose    6    (sharp) to nearly 798,000 in 2019 before COVID-19 emerged. The villagers’ average income among its 1,212 people of 271 households, also saw    7    rise from 700 yuan per year ($100) to over 34, 500 yuan in 2019, the bureau said.

Jingzhu village, the other village    8    (recognize) by the World Tourism Organization this year is located in Wulong district of southwest Chongqing and over half of the villagers work in the tourism industry.

The World Tourism Organization began to award Best Tourism Villages across the world in 2021    9    (promote) the cultural heritage protection and sustainable development of villages. China so far has four villages winning the title,    10    the other two being Yucun village in Zhejiang and Xidi village in Anhui.

Bird-watching, a hobby    1     (favor) by many westerners, has been included in a public benefit program “Park Classes” in Wuhan schools. In the past six years, the program has carried out over 3,000 activities in Wuhan’s thirty urban parks,    2    (cover) all of the city’s primary schools and welcomed by over one million students. Buried in books and having little access to the outside world, many students don’t have the     3    (little) idea of what nature really is. This program is designed to enhance the awareness of environmental protection among school kids,    4    often feel greatly refreshed by appreciating the grace of the adorable creatures through cameras.

Among the selective courses     5    (be) the restoration of small and micro wetlands .As for this course, what is needed is a lot of hands-on practice. Under the    6    (guide) of their teachers, students are required to conduct a research on a 500-square-meter wetland in the city parks. Focusing their attention    7    the wetland’s physical condition, they have recorded the number of plant and animal species to create a restoration plan. Thanks to    8    (they) efforts, the biodiversity of the wetland has been significantly improved.

“It’s very meaningful,” said Li Chenliang,    9    eighth grader from this project. “I have learned a lot of knowledge that cannot be    10    (direct) got from books. I should make full use of the city’s ecological advantages and get more chances to get closer to nature.”

The Grand Canal, a great man-made project completed in ancient China, has witnessed Chinese history spanning over 2,500 years. On June 22, 2014, it     1    (include) on the World Cultural Heritage List.

Over a thousand years, the Grand Canal has been meandering (蜿蜒) through eight provinces and cities along     2     (it) course of 3,200 kilometers and connecting five major rivers, which     3    (be) the longest and oldest canal in the world. It is a precious heritage     4    (pass) down to us by our ancestors.

In modern times, as     5     result of social unrest, climate change, economic change and other impacts, the Grand Canal has been troubled by a series of problems such as river channel cutoff, water     6    (pollute), and water ecological damage. It was once the Chinese people’s dream that the Grand Canal could be restored to the past glory.

    7     the beginning of the new era, many places along the Grand Canal have launched ecological restoration projects. While maintaining the original form of the river course, they have focused on scientific protection and cultural heritage,     8    (highlight) the cultural, historical and ecological value of the Grand Canal.

On April 28, 2022, the Grand Canal was refilled with water for the first time in a century, after a 14-day water-supply project. With     9    (far) development of the project, the Grand Canal has gradually restored the past shipping capacity. Boat tours     10     cargo transportation have become available along the course. The “Golden Waterway” turns clean and lively again.

Canada’s national parks are established     1     (protect) and present outstanding representative examples of natural landscapes. These wild places,     2     (locate) in every province and territory, range     3     mountains and plains to forests and lakes. National parks protect the habitats, wildlife and ecosystem     4     (diverse) representative of the natural regions.

Parks Canada is     5     (responsibility) for both protecting the ecosystems of these great natural areas and     6     (manage) them for visitors to understand, appreciate, and enjoy in a way     7     doesn’t compromise their integrity (完整). Parks Canada is working to maintain or restore the ecological integrity of national parks. Maintaining or restoring ecological integrity     8     (be) a challenging task that involves     9     good understanding of the nature of ecosystems and the stresses they face.     10     (addition), it requires cooperation among people whose actions influence the ecosystems.