Four simple ways to stay positive

    Trying to stay positive, both in good times and bad, is a great way to improve your quality of life. Try these four methods on a daily basis.

1）. Don't think a lot about negativity.

    Of course. Staying positive 24 hours a day, seven days a week is a bit difficult. Letting things get to you is normal, and it's actually healthy to cry or express frustrations once in a while.

    It's when those negative moments control your life that your emotional balance is at risk. {#blank#}1{#/blank#} However, don't give that sadness another second in your day.

2）. {#blank#}2{#/blank#}

    What you put into your body directly affects how you feel on the outside. Fill yourself with good, healthy foods like fruits and vegetables and limit snacking. Exercise is equally of great importance. Take a few days out of your week for at least half an hour of activity, and try to stick to it. {#blank#}3{#/blank#}

3）. Be kind to others.

    {#blank#}4{#/blank#} Making someone's day a bit brighter not only puts a smile on his or her face, but also yours as well. Remember to smile and treat each person with pity and respect. Good deeds are contagious（传染的）, and your positive attitude may spread among others.

4）. Take it one day at a time.

    Being positive isn't an instant thing. It's a steady effort that we follow every hour of every day. {#blank#}5{#/blank#} Instead, focus on living at the moment and doing what you can to make each moment better.

A.Eat healthy and stay fit.

B.Take your lunch breaks outside.

C.Don't worry about what the future may bring.

D.Gratefulness helps you appreciate life in bad times.

E.Good feelings come from acts of kindness and selflessness.

F.Take a few minutes to feel sad and accept what happened.

G.Even going outside for a walk and enjoying the sunshine improves your mood.

    Plants are helpful to human: they provide us with wood and other products, they give us shade, and they help to prevent drought and floods.

    Sadly, in many parts of the world man has not realized that the third of these services is the most important. In his eagerness to draw quick profit from the trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had.

    Several thousand years ago a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It gained the empire but, without its trees, its soil became hard and poor. When the empire fell to pieces, the country found itself faced by floods and starvation.

    Even if a government realizes the importance of a plentiful supply of trees, it is difficult for it to persuade the villager to see this. The villager wants wood to cook his food with, and he can earn money by making charcoal(木炭) or selling wood to the townsman. He is usually too lazy or too careless to plant and look after trees. So unless the government has a good system of control, or can educate the people, the forests will slowly disappear.

    This does not only mean that the villagers? Sons and grandsons have fewer trees. The results are even more serious. For where there are trees their roots break the soil up—allowing the rain to sink in and also hold the soil, thus preventing it being washed away easily, but where there are no trees, the soil becomes hard and poor. The rain falls on hard ground and flows away on the surface, causing floods and carrying away with it the rich topsoil, in which crops grow so well. When all the topsoil is gone, nothing remains but a worthless desert.

    In many parts of the world, there are four seasons: spring, summer, fall and winter. In the U.S., there are only three: football, basketball and baseball. If you want to know what season it is, just have a look at what people are playing.

    For many people in the U.S., sports are not just for fun. They're almost a religion. Thousands of sports fans buy expensive tickets to watch their favourite teams and athletes play in person. Other fans watch the games at home. The most devoted sports buffs never miss a game. Many a wife becomes a “sports widow (寡妇)” during her husband's favorite season.

    America's devotion to athletics has created a new class of wealthy people: professional athletes. Sports stars often receive million -dollar salaries. Some even make big money appearing in advertisements for soft drinks, shoes and even toiletries (化妆品).

    Sports are an important part of Americans' culture. Throughout their school life, Americans learn to play many sports. All students take physical education classes in school. Some try out for the school teams, while others join school sports leagues. Athletic events at universities attract scores of fans and benefit the whole community.

    Did you know that the position(位置) you choose to sleep in says something about what kind of person you are?

    A study of 1,000 British people has been done by Chris Idzikowski, a British professor and director of the Sleep Assessment and Advisory Service in the UK. It looked at the six most common sleeping positions and which personalities tend to match them. Have a look:

    ⒈Fetus (胎儿) position – This is the most common sleeping position. About 41 percent of the participants said they sleep in this position. These sleepers may appear to be strong but they are usually sensitive (敏感的) and shy. The more they curl (蜷缩) up, the more worried they are.

    ⒉Log position (树干睡姿) – This is the second most common position. People who sleep like a log are usually stubborn.

    ⒊Yearner position (向往型睡姿) – This position says that you are open-minded and eager (急切的) to face challenges.

    ⒋Soldier position – These sleepers lie on their backs with their arms down and close to the body. They are usually reserved and quiet.

    ⒌Freefall position – People who sleep in this position are outgoing (外向的) but feel a lack of control in their lives. This is the least comfortable position.

    ⒍Starfish position – People who sleep like this are good listeners, helpful, and uncomfortable being the center of attention.

    Vinegar makes salad, fries and dumplings taste better, and you can even use it to clean your windows. And now, according to scientists, it may even the planet's population survive climate change.

    Researchers from the RIKEN Center for Sustainable Resource Science （CSRS） in Japan found that growing plants in vinegar makes them more resistant to droughts. This could mean that in the future, worries about climate change affecting the world's supply of food will be much lower. The discovery was made after the researchers studied the Arabidopsis, a plant known for its ability to survive in dry weather. It was found that when the plant was placed in drought﹣like conditions, it produced a chemical called acetate（醋酸盐）﹣the main component of vinegar.

    After discovering this, the scientists experimented further by adding acetate to the soil of other plants, before they stopped giving them water completely. After leaving the plants for 14days, they found that the ones treated with acetate had survived, while the untreated plants had dried up and died.

    It's hoped that this simple method of survival could soon be used to help farmers in dry countries keep their crops alive. "In the experiment, we targeted the staple foods of the world﹣rice, wheat and maize﹣and the basic plant of breeding species, rapeseed（油菜籽）," Jong Myong Kim, co﹣author of the study, told Popular Science magazine.

    Kim also told the magazine he's already been in touch with people all over the world who are interested in trying this simple and cost﹣effective method out for themselves from flower growing companies to amateur gardeners. Although at this point keeping thirsty plants alive isn't as easy as just pouring vinegar over them, Kim said he and his team are working on making the process as simple as possible. "Now we are trying to cooperate with some farmers, and also some companies, to make a method to apply this system, "he said. And for those of us who always forget to ask our neighbors to water our plants when we go away, hopefully this means the end of returning home from a trip to find our favorite flowers have died.

Lying awake for hours before falling asleep is a common problem. Even if you can finally fall asleep, taking too long to fall asleep can lead to too few hours of sleep altogether. {#blank#}1{#/blank#} So people having trouble falling asleep always wonder how they can sleep well. 

Parents know from experience that gentle music can help babies fall asleep. Science supports this, showing that children of all ages, from babies to elementary school children, sleep better after listening to comfortable music. Fortunately, children aren't the only ones who can benefit from gentle music before bedtime. {#blank#}2{#/blank#}

Listening to music likely improves sleep for more than one reason. Music can promote sleep directly by affecting your physiology (生理机能). {#blank#}3{#/blank#}Besides, it can also promote sleep by becoming a healthy bedtime habit. Many people can't fall asleep quickly because stressful and worrying thoughts keep them awake at night. By listening to music, the mind has something else to focus on. With time, the practice of listening to music at bedtime becomes more effective as the brain positively associates music with sleep. 

{#blank#}4{#/blank#} Studies have looked at many types of music and playlists but there isn't a clear answer about the best music for sleep. What we do know is that researchers have typically used either a self-made playlist or one that has been designed especially with sleep in mind. One of the most important things on how music affects a person's body is their own musical preferences. {#blank#}5{#/blank#} For those who don't want to design their own playlist, online music services have stepped in and usually offer playlists for sleep or relaxation.

A．It can guarantee sufficient sleep.

B．It's natural to wonder about the best type of music for sleep.

C．The quality and quantity of our sleep become poor as we age.

D．Listening to music can reduce your stress and inspire positive feelings.

E．This can have a serious effect on a person's quality of life if it continues.

F．People across age groups report better sleep quality after listening to soft music.

G．Useful personal playlists may include relaxing songs that have helped with sleep in the past.