The Bowler family had a very unusual experience this year. It was one of more than 400 families who applied to 1900 house, a reality TV show which took a typical family back a hundred years to see how people lived in the days before the internet, computer games and even electricity.

    The Bowler family spent three months in a London home without a telephone, computers, TV, or fast food. The bowlers wore clothes from 1900, ate only food available in England at that time, and cooked their meals on a single stove. Paul Bowler still went to work every day in a then uniform. The children changed their clothes on the way to and from school and their classmates didn't know about their unusual home life. Joyce stayed at home, cooking and cleaning like a typical housewife of the time, though everything took three times as long.

    So does Joyce think that people's lives were better in the old days?

    “I think people in the old days had just as many troubles and worries,” Joyce said. “And I don't think their life was better or worse, there were lots of things back then that I'm happy I don't have to deal with nowadays, but on the other hand life was simpler.” “We had a lot more time with our family, and it was hard being nice to each other all the time,” eleven-year-old Hilary said.

    So what did the Bowler family miss most about modern life while living in the 1900 house?

Paul, 39: “telephone and a hot shower”

Joyce, 44: “a quick cup of tea from a kettle you could just turn on”

Hilary, 11: “rock CD”

Joseph, 9: “hamburger and computer games”

    It is reported that conservation groups in North America have been arguing about the benefits and dangers of wolves. Some groups believe wolves should be killed. Other people believe wolves must be protected so that they will not disappear from the wilderness(荒野).

For Killing Wolves

    In Alaska，the wolf almost disappeared a few years ago，because hunters were killing hundreds of them for sport. However, 1aws were established to protect the wolves from sportsmen and people who catch the animals for their fur．So the wolf population has greatly increased. Now there are so many wolves that they are destroying their own food supply.

    A wolf naturally eats animals in the deer family. People in the wilderness also hunt deer for food. Many of the animals have been destroyed by the very cold winters recently and by changes in the wilderness plant life．When the deer can't find enough food，they die.

    If the wolves continue to kill large numbers of deer, their prey(猎物) will disappear some day. And the wolves will, too. So we must change the cycle of life in the wilderness to balance the ecology. If we killed more wolves, we would save them and their prey from dying out. We'd also save some farm animals.

    In another northern state, wolves attack cows and chickens for food. Farmers want the government to send biologists to study the problem. They believe it necessary to kill wolves in some areas and to protect them in places where there is a small wolf population．

Against Killing Wolves

    If you had lived long ago，you would have heard many different stories about the dangerous wolf．According to most stories，hungry wolves often kill people for food．Even today，the stories of the “big bad wolf” will not disappear．

    But the fact is wolves are afraid of people, and they seldom travel in areas where there is a human smell．When wolves eat other animals，they usually kill the very young, or the sick and injured. The strongest survive. No kind of animal would have survived through the centuries if the weak members had lived. And has always been a law of nature.

    Although some people say it is good sense to kill wolves，we say it is nonsense! Researchers have found wolves and their prey living in balance．The wolves keep the deer population from becoming too large, and that keeps a balance in the wilderness plant life.

    The real problem is that the areas where wolves can live are being used by people. Even if wilderness land is not used directly for human needs, the wolves can't always find enough food. So they travel to the nearest source, which is often a farm. Then there is danger. The “big bad wolf” has arrived! And everyone knows what happens next.

    Life in the Clear

    Transparent animals let light pass through their bodies the same way light passes through a window. These animals typically live between the surface of the ocean and a depth of about 3,300 feet—as far as most light can reach. Most of them are extremely delicate and can be damaged by a simple touch. Sonke Johnsen, a scientist in biology, says, “These animals live through their life alone. They never touch anything unless they're eating it, or unless something is eating them.”

    And they are as clear as glass. How does an animal become see-through? It's trickier than you might think.

    The objects around you are visible because they interact with light. Light typically travels in a straight line. But some materials slow and scatter(散射) light, bouncing it away from its original path. Others absorb light, stopping it dead in its tracks. Both scattering and absorption make an object look different from other objects around it, so you can see it easily.

But a transparent object doesn't absorb or scatter light, at least not very much, Light can pass through it without bending or stopping. That means a transparent object doesn't look very different from the surrounding air or water. You don't see it —-you see the things behind it.

    To become transparent, an animal needs to keep its body from absorbing or scattering light. Living materials can stop light because they contain pigments(色素) that absorb specific colors of light. But a transparent animal doesn't have pigments, so its tissues won't absorb light. According to Johnsen, avoiding absorption is actually easy. The real challenge is preventing light from scattering.

Animals are built of many different materials—-skin, fat, and more—-and light moves through each at a different speed. Every time light moves into a material with a new speed, it bends and scatters. Transparent animals use different tricks to fight scattering. Some animals are simply very small or extremely flat. Without much tissue to scatter light, it is easier to be see—through. Others build a large, clear mass of non-living jelly-lie(果冻状的)material and spread themselves over it .

    Larger transparent animals have the biggest challenge, because they have to make all the different tissues in their bodies slow down light exactly as much as water does. They need to look uniform. But how they're doing it is still unknown. One thing is clear for these larger animals, staying transparent is an active process. When they die, they turn a non-transparent milky white.

    In the four months since I last posted articles on my blog, I've been spending a lot of time studying Chinese. I wanted to pass the HSK. From the beginning of my program, the HSK was the end goal of my Chinese learning this year. Luckily, I passed it and now I have one and a half months to go home and stay with my family.

It's really exciting to learn Chinese in an environment where I can study very fast. What's more, I can see my own progress in different ways. When I got here eight and a half months ago, I only knew a few of the 150 words tested in the HSK 1.However, until now, I've taken and passed the 2500­word HSK 5.

    I remember a time around January. I thought my Chinese had reached the point where I was comfortable in my day­to­day conversations. So my progress would slow down greatly. However, it turned out that I was totally wrong. The conversations I can have now far surpass(超过) the ones I was having in January.

    Today I hit a language­learning landmark(里程碑) that was particularly exciting for me: I finished reading Harry Potter and the Sorcerer's Stone in Chinese. It might not seem that exciting, but it was for me because it's the first full book I've read in Chinese. And it's the third language I've read Harry Potter in. I'm especially proud because I spent about seven months reading the first 35 pages, but in the last month and a half, I managed to read about 150 pages. My next challenge is to read a novel written by a Chinese author, rather than one that I've already read many times in English!

    Hopefully, I'll be able to keep up my language­learning progress over the next month and a half, because I know I'll probably never have another opportunity to learn a language like this.

    Do you want to learn a new language？If you do, go to the country where people speak it and learn it from the locals.

    Breathing dirty air comes at a high price. Air pollution lowers the average life spans (寿命) by a year worldwide and in more polluted parts of Asia and Africa, dirty air shortens lives up to twice that much. Scientists shared their new findings in Environmental Science & Technology Letters. The study used data gathered in 2016 as part of a project known as the Global Burden of Disease and was the first major country-by-country look at the connection between the length of life and what's known as fine PM.

    Air pollution has been linked to many health problems. Most earlier studies had looked at how tiny air pollutants affected rates of illness or death. Joshua Apte is an environmental scientist at the University of Texas at Austin. By looking at life expectancy (预期寿命), his team had hoped to make the threat easier to understand. PM2.5 is what scientists call tiny particles (颗粒) of pollution in the air. Higher levels of PM2.5 can cause health problems and cut months, if not years, from the average length of life. This analysis shows how pollution affects life expectancy in different parts of the world.

    The World Health Organization (WHO) recommends limiting PM2.5 to 10 micrograms per cubic meter of air. Apte's group calculated how holding pollution to this low level would help people. In countries with very dirty air, meeting this standard would lengthen people's lives. However, in countries whose air already meets this standard, the study shows no gain in life expectancy. In other words, meeting the WHO standard won't reduce health costs resulting from dirty air because even below 10 micrograms per cubic meter, pollution still causes serious risks. Meanwhile, the scientists compared how other threats including smoking and cancer shorten the length of life across the globe.

The Best Maldives Island for Your Travel Style

Every resort（度假地） in Maldives is its own private island but choosing the right one for you can be difficult. Want to kick off your Indian Ocean holiday in style? Our guide will help you know what to look for in the hunt for your ideal island.

Waldorf Astoria Maldives Ithaafushi

You'll never go hungry at the Waldorf Astoria Maldives Ithaafushi, which has 1 1 restaurants, including ones specializing in garden-to-table cuisine. There are regular food-themed events, too—our favorites include Arabian Night and the Twilight Seafood Barbecue.

Four Seasons Resort Maldives

Considered one of the best spots in the Maldives for honeymoons, the Four Seasons Resort Maldives has a huge range of room categories and offers a brilliant selection of packages, including Island Romance packages that feature fantastic extras designed with couples in mind.

Fairmon t Maldives

There are numerous reasons to visit the Fairmont Maldives, including the fact that it's a great place to learn about sustainability, whether it's at the Sustainability Lab, where guests can turn discarded plastic bottles into jewelry or during excursions with marine biologists from a charity created to protect sea turtles.

Heritance Aarah

Heritance Aarah recently opened its Live Maldivian Village Museum, which focuses on 4,000 years of Maldivian history. Guests can learn about the art of coral stone carving and find out why locals are known as some of the world's best boat builders.

To ensure you experience the Maldives' best bits, schedule a holiday every month without fail. We're joking, but you get the point: think what you want to see and do, and brush up on the different areas' seasonal selling points.