Climbers at Qomolangma are being asked to clean up after themselves.

Qomolangma has earned the nickname（绰号）the World's Highest Garbage Dump（垃圾场）.

    Climbing Qomolangma,the world's highest mountain,just becomes more challenging.The government of Nepal is telling climbers they cannot leave trash on the trails.Each climber will have to come down the mountain with at the least 18 pounds of garbage.That's the average amount of trash a climber leaves behind on Qomolangma.

    Officials say climbers are responsible for their own trash.“We are not asking climbers to pick up trash left by someone else,”said the Nepal Tourism Ministry.“We just want them to bring back what they took up.”

    More than 4,000 people have reached the 29,035-foot summit（顶峰）in more than 60 years.Leaving trash along the way helps climbers keep their bags light so they have energy to reach the summit.“The trash problem in Qomolangma is not new.”Burlakoti says.“When the people started to climb the mountain,they started to leave their garbage there.”They have left behind bottles,food boxes and equipment.

    The new rule came into effect in April,2014.To make sure it is followed,climbers will have to deposit money（交保证金）before they climb.Once they climb back down the mountain,officials will check climbers at a return camp to make sure they have the required 18 pounds of trash.If they do,their money will be returned to them.If they do not,climbers will not receive their deposit and they will not be given a permit the next time they want to climb Qomolangma.

    The goal is to make sure no more litter will be left on Qomolangma."As we offer Qomolangma to all the people of the world they should take responsibility to clean it."Burlakoti says,“After seeing the results from this,we will also apply this rule to other mountains.”

    Nowadays science has made great progress in every aspect and more and more really good inventions have changed our daily lives. However, the U.S. Patent Office has issued over 7.5 million patents (专利), and not all of them are quite so celebrated. Some good, some bad, and some crazy! The following lists some of the most unusual ideas that have come along.

    Snake Leash (皮带)

    In 2002, a patent was issued for a snake-walking leash. There are at least two major problems with this idea. 1) Dog leashes fit securely between the head and shoulders. A snake does not have shoulders; so it might slither (蜿蜒滑行) away. 2) Dogs are OK for public places because they are social animals, and people like them. Snakes are not OK for public places because they are not social, and some people are terrified of them.

    Stadium Helmet

    Americans are known for their love of sports. Unfortunately, good tickets to games are expensive, so some fans have to sit in the backward sections. This invention, patented in 2000, is designed for these fans. Featuring a built-in radio, binoculars (望远镜), a cooling fan, and a helmet for falling litter, this design transforms the stadium experience.

    Bacon Alarm Clock

    When you think about it, waking to the dreadful, blaring noise of an alarm clock is a terrible way to start the day. However, this clock could change that. You simply put a piece of frozen bacon in the alarm clock, set the alarm, and go to sleep. The clock gently wakes you up with the mouth watering smell of bacon the next morning, just like waking up on a Sunday morning to the smell of mom cooking breakfast. Who said there's no time to eat breakfast?

    Toilet Lock

    In 1969, a patent was issued for a really bad idea the toilet seat lock. First of all, fishing for your keys when you have to go seems very unpleasant. Then there is the possibility of losing the key altogether. What about guests? Just think that you would have to ask permission for the bathroom. Of course, there is the ultimate question: Why would you lock it in the first place?

    As Canadians we may have a love-hate relationship with snow.We love the opportunities it provides: skiing,snow-boarding,cross-country and snowshoeing（雪鞋健行）.There are the advantages of creating snowmen.The beauty of the snow seems to blanket our community after a fresh snow.However,you may hear  icy roads,getting stuck in snow banks,temperature dropping;roofs collapsing（倒塌）from the weight of snow go in the hate category.

    To find joy with winter I have tried various activities to get me out and playing in it.My new favorite for the past 10 years is snowshoeing.The sport becomes popular because it only requires you to lift your knees up higher, which provides a greater exercise benefit.

    According to the Canadian Icons website,snowshoes have been a common form of transport in this country for hundreds of years thanks to the creativity of the native people.The oldest snowshoes were made by the Ojibwa people.With the snowshoes our deep snow walking would be possible.The snowshoes allowed them to float on top of the deep snow by having the weight of the walker distributed across the surface.The snowshoes allowed people to go across the top of the globe from Central Asia to Canada.

    This past New Year's Eve day my oldest son and I went snowshoeing as a great way to end the year by getting to the mountain top.We enjoyed a snack at the top and our dog Indiana rounded out our party.My son took several photos along the way of the amazing views to send them to his new city friends.We are fortunate to live in such a beautiful part of this amazing country.

    Snowshoeing is a great activity to combine your exercise with visiting with friends and families.Wear layers, bring water and snacks and go play in the snow.And your friends will share his enthusiastic story with you.

    I grew up in New York my whole life. I studied in a perfect college that happened only to be an hour away from home. Then, about three weeks before the spring term was over, my parents told me we were moving to Arizona that summer. They asked me if I was going to transfer (转学) to another college. I said no. I was not going to change everything in my life at one time and I loved my college and all the amazing things I was doing there. It was my second home; I would not leave everything I knew at the same time since that was asking for trouble.

    I never imagined it would be this hard but, at the same time, the best thing that could have happened to me.

    When out in Arizona, life was hard. I didn't know anyone other than my family and friends. I couldn't bear the extreme heat. But it has helped me so much. I have started working on my writing. I also have time to work out in the gym. It has helped me realize that no matter where you are or who you know you can always find something that you enjoy.

    When back at school in New York, it was hard as well. Living close to home was my security blanket. If something was wrong I could get in my car and drive home and see my family. After my family moved to another city, I lacked security and was always controlled by anxiety. However, it helped me learn independence and forced me to be brave.

    I' m so thankful that I didn't transfer to a different school, which has given me the opportunity to go back and see best friends in my hometown. A year ago, I officially left my hometown for good. It has helped me grow and I am so thankful that I have had this experience. Now, when I graduate from college, I can go anywhere I want. I am no longer afraid to go out on my own into the world. The world is full of opportunities and pleasure and I can't wait to see where I will be next.

    There are a couple different things that make ramen noodles an unhealthy choice. There's not much to these provision packets besides salt and carbohydrates. While those certainly get thrown around quite a bit as “bad-for-you” comments, you may not know how they actually harm your body. Firstly, there's the fact that most instant ramen servings contain over 1100 milligrams of sodium-that's approaching half of the maximum you should eat per day. When you take in that much sodium in a single sitting, your body overcompensates by holding more water. This can cause temporary water weight gain, leaving you feeling bloated(肿胀)and lacking in energy.

    But while you may feel bloated, chances are you won't feel full. Since the ramen contains lots of refined carbohydrates with virtually no protein or fiber, it's essentially the very definition of empty calories. And you've probably heard the song-and-dance about refined carbs; eating too much can lead your blood sugar to increase and then decrease, leaving you hungry and ready to eat again-which leads to weight gain.

    And, perhaps most upsetting of all, this quick-and-easy meal may stay with you much longer than you realize. Massachusetts General Hospital's Dr. Braden Kuo used a pill-sized camera to record the digestive tracts of volunteers who ate processed ramen noodles as well as fresh ones. With a video, Dr. Kuo was able to show that, after two hours when the fresh noodles were long gone, the ramen noodles were still there in the intestines.

    Doctors do know that years of eating the instant packets are linked to poor health. Another study, this one by the Harvard School of Public Health, assessed the long-term consequences of ramen consumption in South Korea, where it's a major course. They found that subjects, women in particular, who ate instant noodles at least twice a week had a 68 percent higher risk of diabetes and heart disease-than subjects who ate a more consistently natural diet.

    In short, eating ramen once in a while won't damage your health-as is true with most processed foods. But it's not something you should make a habit of-for your stomach and heart's sake.

    Bargain hunters spent a record of 168.2 billion yuan ($25.3 billion; 21.7 billion euros; ￡19.3 billion) during the 2017 Singles Day on Nov. 11, the world's largest daylong discount festival, as e-commerce giant Alibaba Group took online shopping to offline stores and beyond(超越) the nation's borders(边界).

    Spending climbed by 39.3 percent during this year's sale, as consumers from 225 countries and regions scooped up goods from 140,000 brands (品牌)that offered promotions during the annual event.

    Alibaba surpassed last year's 120.7 billion yuan total shortly after 1 pm, as overseas shoppers joined in the afternoon, seeking good deals from China. Expanding at a faster-than-expected pace, the total eclipsed (使黯然失色) the combined sales of Black Friday and Cyber Monday in the United States last year. Nine out of ten people used mobile wallet apps for payment, says Alibaba, with its Alipay app having handled 1.48 billion transactions (转账) in 24 hours and processed them at a peak rate of 256,000 transactions per second.

    Meanwhile, some offline shops also joined in, turning into smart stores that allowed shoppers to track product availability at other locations and get timely delivery to their doorsteps while paying with their phone. "Using big data analytics powered by Chinese tech firms can help us locate customers in a precise manner, something we wouldn't have achieved using old-school retailing," says Gary Chu, e-commerce general manager.

    The Nov. 11 shopping event represents a China-branded business model that can also be spread to other countries, creating opportunities for businesses worldwide. As Singles Day grows, shoppers have used the opportunity to try out new items rather than simply bagging a bargain, says Tommy Hong, vice-president of Nielsen China.

    "That changing attitudes (toward Singles Day) is also consistent with China's shifting focus from quantity(数量) to quality growth," Gary Chu says.