3 . Every week, even every day, we have lots of different tasks to finish.    1     However, the advantages of volunteering can be huge. Volunteering can offer help to people in need. But the advantages can be even greater for the volunteers. Why?

    2     Studies have found that when you stop thinking about your own problems and focus on someone other than yourself, your stress levels start to go down, your immune system (免疫系统) is strengthened and your overall sense of life satisfaction increases. This is because helping someone else gives you a sense of purpose and makes you pay attention to the positive things in life.

Volunteering helps you develop new relationships.    3     And it gives you the good chance to communicate with them. These can help you form close relationships with them. These relationships can have a lasting influence on your life.

Volunteering teaches you valuable job skills. During volunteering, you can have lots of chances to learn useful and important skills. For example, volunteer organizations always provide on-the-job training courses for volunteers before they start the work. Those courses can help you learn some skills for certain jobs.    4    

Volunteering makes your resume (简历) attractive. Are you stuck for things to write on your resume to get the job you want?    5     Studies have found those who volunteered had a better chance of finding a job than those who didn’t. Whether you do one thing on a regular basis or help with lots of different causes for shorter amounts of time, each voluntary experience you have looks great to your future bosses.

7 . There are so many beautiful places in the world that wait for you to explore, but some of them won’t wait around forever.

The Dead Sea, for example, known for being one of the saltiest bodies of water in the world is in danger of disappearing. Tourists are in the rush to the lake to float（漂浮）in its waters and put its mineral-rich mud on their skin. However, the water level has been dropping more than three feet per year in recent years. In fact, if nothing is done by 2050, it will be too late.

Madagascar’s rainforests could also be gone in about 30 years. They once covered 120,000 square miles, but due to logging（伐木）and forest fires, only 20,000 square miles remain today. This is sad for many animals that call Madagascar home. About 80 percent of the species（物种） that live there can’t be found anywhere else in the world, and there are even many more yet to be discovered.

There are also many man-made places of interest with long history around the world that are at risk of disappearing. One of these is Machu Picchu. A trip to these Inca ruins is on many people’s plan lists. However, Machu Picchu has been in danger, too. If steps are not taken to protect the ancient site, it could be gone in the near future.

Another place in danger is the Great Wall of China. Around one-third of the wall, built over centuries and completed in the Ming dynasty, is already gone. Wind and rain have weathered it and plants that grow in the wall have weakened it further. Also, poor villagers have stolen its bricks in order to sell them or build homes with them.

It’s hard to believe that so many amazing places could soon be gone for good. If you have your heart set on visiting any of these places, pack your bags and get to them before time runs out!

8 . Many libraries around the world are as amazing in their architecture and organization as they are in the huge amount of knowledge they contain. With shelves and shelves of books, various collections and amazing historical and cultural displays, there are plenty of undiscovered wonders.

Beinecke Rare Book Library (New Haven, Connecticut)

Yale University has one of the most beautiful college campuses in America, and one of its most interesting features is the Beinecke Rare Book Library. It is one of the largest buildings in the world devoted to rare books and manuscripts (手稿) of famous people. From 2015-16 the library building was closed for 18 months for major improvement. Inside there is a statue of its main founder that rises up high.

Vennesla Library (Vennesla, Norway)

Located near the southernmost tip of Norway, Vennesla Library is more than a collection of books—it’s a city cultural center and meeting place. The building hosts a coffee shop, open meeting spaces, classrooms for children and adult education courses, and a cinema. It is mainly built out of wood. The long, thin beams (横梁) on the inside were designed to look like the inside of a whale.

Suzzallo Library (Seattle)

Among the many beautiful features of the campus at the University of Washington, such as its cherry flowers and a light rail station, Suzzallo Library was built in the Collegiate Gothic style. Its buttresses (扶壁) are decorated with 18 statues featuring famous academics and writers such as Plato, Shakespeare, Leonardo da Vinci, Dante, Galileo, Beethoven, Isaac Newton and Charles Darwin.

Library of Muyinga (Muyinga, Burundi)

A school for deaf children, the Library of Muyinga in Burundi was built with local techniques and traditions. A rope hammock (吊床) that hangs between the first and second floors of the library serves as part of the children’s reading room, a great place for indoor activities.

More information of them is just a click away.

9 . Lens fogging (镜片起雾) has been troubling glasses wearers for as long as glasses have existed; it happens more often to those needing to wear masks (口罩). Researchers from ETH Zurich in Switzerland may have finally come up with a lasting solution to the problem that works whether someone is wearing a mask, or they’ve just come inside from the cold.

There’s no real mystery as to the foggy lenses. It happens when moisture (水分) in wet air, or from someone’s breath, hits a glasses lens that’s colder than said moisture, which then becomes obvious drops. It happens a lot in the winter, when people are coming in from the outside to warm places, or when people breathe out with masks, the warm, wet air goes upwards.

It’s also a problem that plagues car windows, making it hard for a driver to see. The simple solution there is to see. The simple solution there is to heat the windows. But adding electric heaters to glasses, which are designed to be lightweight and comfortable to wear, isn’t really a choice. So ETH Zurich researchers came up with another way to heat glasses lenses. They rely on a new type of glass coating that effectively does the same thing.

The coating is made from very thin gold in such small amounts that the added cost would be very small. The gold takes in a kind of light from the sun, causing glasses lenses to heat up by up to eight degrees. By doing this, it can prevent moisture in the air from forming on the glasses. The coating also cannot be seen by human eyes, not influencing people’s views. Because it’s so thin, the coating can even be applied to surfaces that are not flat.

But this method isn’t perfect. As the gold draws the energy it needs to heat lenses from the sun, the coating won’t do much good in the winter months, when it starts to get dark by late afternoon. But the researchers believe that even a small amount of electricity, like from a battery hidden away in the arms of a pair of glasses, would be enough. And with gold being one of the most valuable metals on earth and still in high demand, the researchers are looking for other metals to replace it.

The Trans-Siberian Railway is a well-known train route in the world. Thousands of travelers pack their suitcases every year into a train cabin (车厢)    1    will take them from Moscow to Vladivostok.    2    (be) the longest railway in the world, the Trans-Siberian Railway connects Moscow    3    Vladivostok, covers 9,288 km and crosses eight time zones.

The Trans-Siberian    4    (build) at the beginning of the 20th century and is one of the best         5     (option) for discovering part of the world. This journey offers    6    (impress) landscapes during the five to seven days of travel, with stops in the Gobi Desert or Lake Baikal. Once    7    (complete), the Trans-Siberian Railway became famous to the whole world. Since then, it has been attracting many travelers desiring     8     (see) the amazing engineering and experience the journey. At the same time, the Trans-Siberian regular trains are    9    (usual) used by locals for their commuting (通勤) needs, so it is    10    excellent way to get to know the local life. It combines romantic ideas about traveling with absolutely incomparable landscapes. All this makes the trip once-in-a-lifetime adventure.