Ask someone what they have done to help the environment recently and they will almost certainly mention recycling. Recycling in the home is very important of course. However, being forced to recycle often means we already have more material than we need. We are dealing with the results of that over-consumption in the greenest way possible, but it would be far better if we did not need to bring so much material home in the first place.

    The total amount of packaging(包装) increased by 12% between 2010 and 2015. It now makes up a third of a typical household's waste in the UK. In many supermarkets nowadays food items are packaged twice with plastic and cardboard.

    Too much packaging is doing serious damage to the environment. The UK, for example, is running out of it for carrying this unnecessary waste. If such packaging is burnt, it gives off greenhouse gases which go on to cause the greenhouse effect. Recycling helps, but the process itself uses energy. The solution is not to produce such items in the first place. Food waste is a serious problem, too. Too many supermarkets encourage customers to buy more than they need. However, a few of them are coming round to the idea that this cannot continue, encouraging customers to reuse their plastic bags, for example.

    But this is not just about supermarkets. It is about all of us. We have learned to associate packaging with quality. We have learned to think that something unpackaged is of poor quality. This is especially true of food. But it also applies to a wide range of consumer products, which often have far more packaging than necessary.

    There are signs of hope. As more of us recycle, we are beginning to realise just how much unnecessary material we are collecting. We need to face the wastefulness of our consumer culture, but we have a mountain to climb.

    Waste can be seen everywhere in the school. Some students ask for more food than they can eat and others often forget to turn off the lights when they leave the classroom. They say they can afford these things. But I don't agree with them.

    Waste can bring a lot of problems. Although China is rich in some resources, we are short of others, for example, fresh water. It is reported that we will have no coal or oil to use in 100 years. So if we go on wasting our resources, what can we use in the future and where can we move? Think about it. I think we should say no to the students who waste things every day. Everybody should stop wasting as soon as possible.

    In our everyday life, we can do many things to prevent waste from happening, for example, turn off the water taps(水龙头) when we finish washing, turn off the lights when we leave the classroom, try not to order more food than we need, and so on. Little by little, everything will be changed. Waste can be stopped one day, if we do our best.

    Model Railroading

    Would you like to know a fun way to learn about math? Well, you can do that with model railroading. Yes, it's true. You can learn about many school topics without using a school book. Besides that, there are many other benefits that model railroading brings us as well. In this article, we will discuss just a few of those benefits of model railroading.

    Patience and problem solving skills

    When you build a model railroad, you have to plan your railroad out. You have to decide where the tracks (轨道) will go, where to put buildings, where to put streets and any other things you would like to add to your model railroad. Also, you have to think about any problems you may have with the design you choose. How will you make railroad crossings? How will you design hills, mountains, and rivers? Deciding on what to do with your model railroad takes a lot of thought and patience, but it is not as difficult as you may think.

    Building skills

    With model railroading, you learn how to put together plastic models of buildings. Also, you can learn how to build a table for your design, or make scenery for the geography of your design. Your model railroad runs on electricity, so you learn about electronics as well. These are skills that not only help you build a model railroad; these skills will help you throughout life.

    Fun for family and friends

    Different from many video games, model railroading is a social hobby that lets you communicate with family and friends. This is because you have to communicate with family and friends as you build and run your model railroad. By spending time with the people in your life you love and care about, you learn to become closer and care more for each other. This is one of the best parts of model railroading as a hobby. Of course, the best part about model railroading is running the trains. Watching the trains run around the track and make all the sounds and do all the things that real trains do gives people hours of enjoyment. Also, there is great satisfaction in the fact that you, your family, and your friends built the model railroad.

    I hope you can learn to enjoy model railroading and experience all the benefits you just read about and many others. Happy railroading!

    In America, the number of people killed in car crashes in 2016 was above 40, 000 for the first time in a decade, data released on Wednesday shows.

    "Americans believe there is nothing we can do to stop crashes from happening, but that isn't true. We are behind the rest of the developed world in addressing highway fatalities(死亡). We just haven't been willing to do what needs to be done, "said Deborah A. P. Hersman, president of the National Safety Council.

    The National Safety Council data shows a 6 percent increase in deaths in 2018 when compared with 2015 and a 3 percent increase in the number of miles Americana drove in 2016.

    "Motor vehicle fatality numbers have been ringing the alarm for two years, "Hersman said." Unfortunately, we have been blind to the data and the killings on our roadways. If we fail to take action, the death tell will continue to rise. "

    "The trend is clear：After years of progress, highway deaths are heading in the wrong direction, "said Jonathan Adkins, a state safety official.

    The number of people killed reached a record low of 32, 675 in 2014, according to NHTSA statistics. That record followed a fairly steady downward track for the past six years that experts attributed it primarily to safety features that have been built into cars and trucks.

    Safety advances including increased seat-belt use, air bags, anti-lock braking, stability controls and electronic warnings and cameras.

    The bad economy and high gas prices also influenced the reduction in deaths. Now, with unemployment and gas prices both low, more people are driving for work and pleasure trips.

    "It's not just that Americans drive more miles when the economy improves; it's the kind of miles they drive,"said Adrian Lund, president of the Insurance Institute for Highway Safety.

Yingge Dance is a traditional folk dance that has gained significant popularity in recent times. It is a dynamic and energetic performance that showcases the rich cultural heritage of a particular region.

Yingge Dance is especially popular in areas like Guangdong Province in China. It is often performed during festivals, celebrations, and important cultural events. For example, it is a staple during the Spring Festival and other traditional holidays, adding to the festive atmosphere and bringing joy to the community.

The dance is characterized by its powerful movements, vibrant costumes, and rhythmic music. The dancers, usually in groups, showcase their coordination and skills through various choreographed steps and formations.

If you want to enjoy this wonderful dance performance, here is some useful information for you.

The Yingge Dance show will be held at the Cultural Square in the city center. The show starts at 7:00 p. m. every Saturday and lasts for approximately two hours.

The ticket price for adults is $20, while for students and seniors（over 65）, it is $15．Children under5can enter for free.

After watching the performance, many people have shared their amazing experiences. They were impressed by the colorful costumes, powerful rhythms, and the unity and passion of the dancers.

As far as we know batteries are playing an important role in our life. We couldn't live without batteries. Why so? Batteries provide power for anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri (MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.

" To provide enough power, we need certain methods with high energy density (密度)", said Jae Kwon, assistant professor of electrical and computer engineering at MU." The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries."

Kwo n and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro/ nanoelectromechanreal systems(M/NEMS). Although nuclear batteries can cause concerns, Kwon said, they are safe.

" People bear the word‘ nuclear' and think of something very dangerous," he said," However, nuclear power sources have already been safely powering a variety of devices, such as pace- makers, space satellites and underwater systems."

His new idea is not only in the battery's size, but also in its semiconductor(半导体). Kwon's battery uses a liquid semiconductor rather than a solid semiconductor.

" The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构) of the solid semiconductor, Kwo n said," By using a liquid semiconductor, we believe we can minimize that problem."

Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwo n is working to build and test the battery. In the future, they hope to increase the battery's power, shrink its size and try with various other materials. Kwo n said that battery could be thinner than the thickness of human hair.