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In the thick jungle of New Guinea is nature's most amazing theater, a Carola's parotia (天堂鸟) is showing off his red and yellow feathers in a display called a "butterfly dance."

This brilliantly colored birds of paradise have developed over millions of years from ancient birds whose feathers were dark and boring in comparison. It seems to be a contradiction (矛盾) that such extreme feathers and colors could have been favored by the process of evolution. After all, these same brightly colored feathers that attract mates also make the birds much more noticeable to predators (捕食者). The answer lies in the safe environment in which the birds live, and a process of evolution known as sexual selection. Except for other pressures, birds of paradise begin to specialize in attracting mates. Over millions of years they have slowly undergone changes in their colors, feathers and other talents. Characteristics that made one bird more attractive than another were passed on and impove over time. 

In the past, demand for the bird's feathers resulted in a huge amount of hunting. At the peak of the trade in the early 1900s, 80,000 skins a year were exported from New Guinea to Europe ladies' hats. Nowadays, few birds die for fashion or for traditional costumes: Ceremonial feathers are passed down from generation to generation. Although local people are still permitted to hunt the birds for traditional uses, they usually target older male birds, leaving younger males to continue breeding.

David Mitchell, a conservationist, is relying on the help of local villagers to record where the birds display and what they eat. He hopes to not only gather data, but also encourage protection of the birds' habitat. The strategy seems to be working. For millions of years, these impressive birds have danced to find their mates. They will keep dancing for as long as the forest offers them stage.

The Grand Canal, a large waterway that first connected north and south China over 1400 years ago, is shorter than it once was, but it is still the longest man-made river in the world. 

The original Canal system began around the year 605. China's emperor realized that he needed a better way to feed his army. Specifically, he needed a way to move food quickly from China's southern rice-growing region to the country's north. Thus, he spent 6 years on construction of the first section of the Grand Canal, connecting existing canals, lakes and rivers. However, by 1127, parts had begun to worsen. In 1279, Kublai Khan began to repair and create a more direct north-south route to and from Beijing.

The Grand Canal was also an important cultural channel. Soldiers, merchants and artists transported ideas, regional foods and cultural practices from one part of China to another. It is said that Peking duck and the Pecking opera were both brought north via the canal. Even today, the country's watery highway plays an important economic role in China. In addition, local governments, eager to increase tourism and real estate (房地产) development, are beautifying areas along the Canal.

This development comes at a price, though. In Yangzhou, the city government has torn down almost all of the older Canal-side buildings. Farther south in the cities of Zhenjiang, Wuxi and Hangzhou, the situation is similar. "Traditionally, we talk about eighteen main cities on the Grand Canal, and each had something unique and special about it." explains Zhou Xihua, the director of the Grand Canal museum. "But now many of these cities are all the same: a thousand people with one face."

In 2005 a group of citizens proposed that the historic Grand Canal be made a UNESCO world heritage site. The status would protect both the waterway and architecture around it. "Every generation wants the next generation to understand it, to look at its monuments." said Zhu Bingren, an artist who cowrote this proposal. UNESCO status was officially granted in 2014. The hope now is that the grand Canal, one of the world's great engineering accomplishments, will continue to link north and south China for centuries to come.

Art is a universal language. Music is a universal language. Love is a universal language. Now, it's the turn of sand to be mentioned in such terms. In her work, sand artist Kseniya Simonova mixes art, music and love to create her own medium which can be understood and appreciated by everyone.

According to Simonova, she fell in love with sand art "absolutely accidentally." Her husband, a theatre director, advised her to give it a try. "I never thought I could perform; I was always a classical artist," reveals Simonova. "I just started it as a hobby and I never thought it would turn out to be what it is now." In 2009, Simonova won the "Ukraine's Got Talent" TV contest. Since then her fame has skyrocketed, and she has become a real sensation (引起轰动的人).

The art Simonova creates is magical; however, the medium she uses is quite common. "It is ordinary river sand. There was a time when I did use the volcanic one, but actually it makes no difference," says Simonova. "In sand art it is an idea and its visualisation that matters. What I do is create a theatre in my mind. The sand is a very convenient medium that is very flexible and responds to speed well. It can show what is going on in my head."

The images created by the artist live only for a few seconds. However, Simonova is not in any way alarmed by the momentary aspect of sand art. "I know that my creations exist only for a while, but I believe that to be absolutely normal because art mirrors life. We live every moment of our life, but it's not possible to repeat those. The same is the case with what I do," Simonova concludes.

Sand art helps the artist to see the world in a new way, painting ever-changing life in every grain of sand.

Four Best National Parks for 2023-2024

Swiss National Park 

Swiss National Park in eastern Switzerland covers nearly 42, 000 acres of land, giving visitors access to roughly 60 miles of trails that weave in and out of valleys backed by the breathtaking Swiss Alps. While hiking, keep an eye out for wildlife ranging from well-known animals like foxes and eagles to Alpine ibexes that are wild goats with large horns living in the mountains. This park closes from mid-November until the end of May with some higher trails remaining under snow through June, so time your trip for the warmer months. 

Yosemite National Park 

Located nearly 170 miles east of San Francisco, Yosemite offers visitors plenty of impressive natural wonders to see. Scenic landscapes, such as the famous Tunnel View and Valley View outlooks, and famous landmarks like Half Dome and El Capitan are just a few of Yosemite's greatest attractions. Don't forget to swing by one of the sequoia groves (红杉林) to be amazed at the towering trees.

Glacier (冰川) National Park 

Glacier National Park is Montana's crown jewel. The expansive one million-acre park, which was named after those remains of glaciers estimated to be 7, 000 years old, offers impressive mountainous scenery. Here, you'll find more than 700 lakes, National Historic Landmarks including Lake McDonald Lodge, Granite Park Chalet and the Two Medicine Store, and the famous Highline Trail, which follows the Continental Divide.

Banff National Park 

Situated in southwestern Alberta, Canada's oldest national park is also one of its most beautiful national parks. Visitors can explore Banff National Park on foot along more than 1, 000 miles of hiking trails—the Lake Agnes Trail features a seasonal European-style tea house, or drive the scenic Icefields Parkway for breathtaking views of glaciers and waterfalls.

Since the age of seven, I had always dreamed of being one of the student leaders who we looked up to. They took responsibility for us, gave instructions, organized school activities, and proudly wore their badges while carrying our school flag and walking on the playground. They represented us and gave speeches on school issues, becoming our role models.

As I grew older, I became qualified to participate in the school elections. I prepared my election speech and on the day of the speeches，everyone balloted(不记名投票).I was hopeful and prayed for a victory. However， the following morning when we gathered on the school grounds for the principal's declaration of the outcome, reality hit me hard. I realized that I had no chance of winning-I was neither well known nor too pretty. Like many preteens facing rejection, I became depressed and felt as though I had no friends supporting me.

Later that day, as I cried in my room, I took a deep breath and decided to change my mindset. I refused to see myself as a failure and made a determination to run for the school elections again the following year-this time, with a plan to win. I sat down at my study table and wrote down my thoughts.

Comparing myself with other competitors, I figured out that I had a lot to improve. With a whole year ahead, I began to play my election strategies.

To gain recognition and demonstrate my ability to represent my fellow students, I started making new friends and helping them in various ways at school. Additionally, I attended a public speaking course to learn how to deliver a great election speech. By the time the election came around, I was well-prepared, and I delivered a passionate speech on the stage.

注意：1．所续写短文的词数应为150左右;2．请按如下格式在答题卡的相应位置作答。

Paragraph 1:

The following day, I anxiously waited for the results.

Paragraph 2:

Later, I realized that I had achieved far more than what I had initially set out to do.

注意：写作词数应为80左右。

Dear Eric, 

……

Yours,

Li Hua