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"This is a pretty rare phenomenon in terms of human and wildlife cooperation. So, we're not only conserving on a species level, but also on a cultural level," says Brian Smith, a river dolphin expert. "It's a lesson to humanity about our relationship with wildlife."

The Irrawaddy dolphins have another less-known trick: They spit water. It's not just for fun, though. They use it to drive fish into tight groups so they're easier to catch. Some scientists even think they might do it to impress a potential mate.

The Irrawaddy dolphins are one of the only six species that can live in freshwater. But they can also inhabit coastal waters — a quality shared by even fewer species. Their range includes parts of coastal waters of South and Southeast Asia, as well as three specific rivers: the Mekong in Cambodia, the Mahakam in Indonesia, and the Ayeyarwady in Myanmar. While the species as a whole is listed as endangered by the International Union for Conservation of Nature (IUCN), the populations in these three rivers are considered critically endangered, with fewer than 100 individuals estimated in each.

These rivers and coastal areas are often close to intense human activity, so they face serious threats from pollution, habitat loss, coal-carrying ships, and illegal electro-fishing — a practice in which fishers send electric currents through the water to kill fish. Electro-fishing not only dramatically reduces the fish populations that dolphins rely on, but it can also injure or kill the dolphins.

"Without urgent action, these cooperative, curious creatures could disappear forever, much like the Yangtze dolphins, which disappeared from China's waters in 2006, despite conservation efforts, as well as Mexico's Vaquita dolphins, down to around 10 individuals," warns Smith.

Every doctor has had to try their best to calm down patients who've come into their surgery waving an Internet print-out, convinced that they have some rare incurable disease, say, throat cancer. The truth is usually far more ordinary, though: they don't have throat cancer, and it's just that their throats are swollen. Being a graduate of the Internet "school" of medicine does not guarantee accurate self-health-checks.

One day Mrs. Almond came to my hospital after feeling faint at work. While I took her blood sample and tried to find out what was wrong, she said calmly, "I know what's wrong；I've got throat cancer. I know there's nothing you doctors can do about it and I've just got to wait until the day comes."

As a matter of routine I ordered a chest X-ray. I looked at it and the blood results an hour later. Something wasn't right. "Did your local doctor do an X-ray?" I asked. "Oh, I haven't been to the doctor for years," she replied. "I read about it on a website and the symptoms fitted, so I knew that's what I had."

However, some of her symptoms, like the severe cough and weight loss, didn't fit with it—but she'd just ignored this.

I looked at the X-ray again, and more tests confirmed it wasn't the cancer but tuberculosis (肺结核)—something that most certainly did need treating, and could be deadly. She was lucky we caught it when we did.

Mrs. Almond went pale when I explained she would have to be on treatment for the next six months to ensure that she was fully recovered. It was certainly a lesson for her. "I'm so embarrassed ," she said, shaking her head, as I explained that all the people she had come into close contact with would have to be found out and tested. She listed up to about 20, and then I went to my office to type up my notes. Unexpectedly, the computer was not working, so I had to wait until someone from the IT department came to fix it. Typical. Maybe I should have a microwave sausage while I waited?

Meriwether Lewis

Leading the Lewis and Clark Expedition (航行) (1804-1806), this American explorer was appointed by President Thomas Jefferson to map the newly acquired Louisiana Territory. His team journeyed from the Mississippi River to the Pacific, documenting new species and establishing relations with Native tribes (部落). This journey opened the American West to settlement, connecting the nation from coast to coast.

Ferdinand Magellan

Sailing for Spain, this Portuguese explorer organized the first expedition to encircle the globe in 1519. Though he was killed in the Philippines in 1521, one of his ships completed the voyage in 1522. This historic journey proved the world was round, linked the world's oceans, and revealed the vastness of the Pacific.

James Cook

This British naval captain led three groundbreaking voyages across the Pacific in the late 18th century. He mapped the eastern coast of Australia, charted New Zealand's coastline, and explored numerous Pacific islands. Cook's accurate mappings and scientific observations greatly expanded European knowledge of the Pacific region and established new connections between Europe and the South Pacific.

Marco Polo

This Venetian trader traveled the Silk Road to China in the 13th century, spending 17 years in Asia. His detailed accounts of Asian cultures, technologies, and wealth introduced Europeans to a previously unknown world. His book, The Travels of Marco Polo, inspired generations of future explorers and helped bridge the cultural divide between the East and the West.

内容包括：

1.说明你的写信意图；

2.你今年的旅行经历（地点及活动介绍）；

3.说说你今年的旅行感受，并邀请Jack与你同游。

注意：

1.词数80左右；

2.开头和结尾已为你写好不计入词数。

Dear Jack,

How are you doing? I know that you like travelling.______________________ _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua

Scott Thompson, a boater from Southern California, was out on his boat. After realizing the weather wasn't favorable, he turned the boat back towards land.

Soon after, something2 happened. The boat was rocked by the wavy water and Scott got3 out of the boat. The engines continued to run, moving the boat farther and farther away from him, which made it4 to swim back to it. He watched his boat5 in the middle of the icy Santa Barbara Channel.

Lost at sea, with no land in6, Thompson was sure these were his7 moments on earth. However, thoughts of his family helped him find the8 to survive. "Just keep9, and you will get home to your family," Thompson kept telling himself. "Just imagining my girls and my son growing up without me, and my wife not having a husband to support her, I couldn't10."

All of a sudden, he heard a big splash (拍水声). It was a medium-sized harbor seal that Thompson described as "an angel" that came to help him. "The seal would come up and11 me, like a dog comes up and pushes your leg." Thompson said. It was a sense of12, Thompson recalled, knowing that he wasn't alone on this heroic journey.

Being pushed along by the seal, Thompson felt13 to swim to the nearest oil platform, which was far but closer than land. With the14 of the seal, he swam through the dark, freezing water for five hours, until he managed to reach an oil platform. People aboard the oil platform offered aid. They rushed him to a hospital where Thompson was treated and recovered a few days later.

While the thought of his15 motivated him to keep going, Thompson said that he would not have endured through the pain if it hadn't been for the seal swimming alongside him.

©Read, read, read.

One of the easiest things you can do to learn English faster is to read as much as you can. This will make your vocabulary better and it will also help you learn grammar and slang(俚语).

◎Watch movies.

Watching movies will also help you improve your English, by helping you to hear what it sounds like and also helping you to learn new words. Once you have a basic vocabulary，try to keep the subtitles(字幕)off and focus on listening for the words you do know and guessing the words you don't know from what is happening on the screen.

◎Find an online pen-pal.

Pen-pals are people trying to learn your language that you write letters (or emails) to and they write back. You write half of your letter in your native language so that they can practise and half in English so that you can practise.

◎Singsongs.

Learning and singing songs is another good way to make your English better. It will also help increase your vocabulary. Find a song you like, learn it, and learn what the lyrics(歌词)mean.

◎

You can also just make friends with English language speakers online and chat, email, and Skype together in order to practise your English. You can find online friends by joining fan communities or through language-learning communities.

A. Make a friend.

B. Join a fan community.

C. Read things all the time.

D. You can talk about whatever you want!

E. You can start watching with subtitles on.

F. This will help you improve your pronunciation.

G. Newspapers are a good way to learn the basics of a language.

The recent discovery is the most important in many years. Experts unearthed a grand house, where the three letters- "ARV" were carved on the walls. This suggested that the home belonged to Aulus Rustius Verus, a wealthy Pompeii politician. The team found a large dining hall that was nearly undestroyed. It is about 50 feet long and 20 feet wide and has a mosaic floor made up of more than a million white tiles (瓷砖). Its walls were painted black and decorated with frescoes, artwork made using an old technique of painting with watercolors on wet plaster (灰泥). The frescoes describe characters from Greek mythology and tell stories of heroism and fate. The hall would have been an elegant setting for entertaining guests, the archaeologists said. As people dined in the room, flickering candlelight would have made the figures seem to move.

"Pompeii is truly a treasure chest," Italy's culture minister, Gennaro Sangiuliano, said of the recent discovery. "Every time we dig, we find something beautiful and significant."

The Palace Museum

The Palace Museum, famously known as the Forbidden City, is located in the heart of Beijing. It houses a vast and impressive collection of imperial artifacts, including jade treasures, ancient paintings and furniture, all reflecting the profound ancient Chinese culture.

Shanghai Museum

Located in the financial hub (金融中心) of China, Shanghai Museum is another must-visit destination. It exhibits a wide range of traditional Chinese art works, each telling a unique story of Chinese art across different times.

The National Museum of China

Also situated in Beijing, the National Museum of China presents a comprehensive range of exhibits. From ancient relics that date back thousands of years to modern art, the museum tells a fascinating story of China's 5,000-year-long civilization.

Shaanxi History Museum

Shaanxi History Museum in Xi'an is famous for its incredible Terracotta Army, which includes thousands of life-sized terracotta soldiers and horses. It shows the military power and artistic achievements of the Qin Dynasty.

These four museums are important for understanding China's past and present. They also offer a unique and rich cultural experience to visitors around the world.

1. Use sunscreen (防晒霜) properly

Apply sunscreen with SPF 30 or higher 20-30 minutes before going outside. Don't forget to reapply every two hours, especially after swimming or sweating. Studies show that most people apply too little sunscreen, so using enough (about 1 teaspoon for the face) is key.

2. Wear the right clothes

Wear long sleeves, hats, and UV-protective sunglasses. Dark-colored clothes with tight weaves block more UV rays than light ones. A good pair of sunglasses not only protects your eyes but also prevents fine lines around the eyes caused by squinting (眯眼).

3. Seek shade during peak hours

The sun is strongest from 10 a.m. to 4 p.m. Use natural shade from trees or create your own shade with umbrellas or tents.

4. Drink enough water

Drinking plenty of water is important for skin health and overall comfort. When you sweat, your body loses water and salt, so drink lots of water even if you're not thirsty. You can also enjoy drinks like tea or fruit juice.

By following these steps, you'll reduce the risk of skin damage. Then you can enjoy being outside without worry. Remember: healthy skin means feeling good!

1. 阐述方案；

2. 说明理由。

注意：

1. 写作词数应为80词左右；

2. 请按如下格式在答题卡的相应位置作答。

Dear Mr. Brown,

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua