阅读下面的短文，并从下面的文本框中为本文选择恰当的段落大意。

Sports can help you keep fit and get in touch with nature. However, whether you are on the mountains, in the rivers, or on the grassland, you should know that your sport of choice might have great influence on the environment.
② Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all kinds of harmful things and a lot of energy are used to keep its courses(球场)，This leads to serious environmental problems. For example, in Portugal and Spain, golf is considered to be the most important reason for water shortage(短缺）io some areas.
③ There are many environment-friendly sports. Power walking is one of them that you could do today. You don't need anything special but a good pair of shoes; and you don't have to worry about nature and your money. Simple and free, power walking -can also keep you fit. If you often walk, it will be good for your heart and bones.
④Nowadays more and more people choose to play "green sports". They play sports outdoors, in the countryside or other open spaces. There is no special things needed. And best of all, it's free.

    Mr. Guo is a teacher from Xi'an.  He asked his students to hand in their homework through a QR code(二维码). "We spent an hour or two in class learning how to generate(使产生) the codes, and in the end everything gets easier. "Said Mr. Guo, "When students finish the homework, they keep it on WeChat. Then, each student makes his own QR code and gives it to me. So I can cheek their work anywhere using my computer or telephone. "

    The QR codes can be sent to Mr. Guo by email, QQ and WeChat. When Mr. Guo scans (扫描) his students' QR codes, their homework appears on his phone, lie finds that their homework becomes more creative, with many pictures, music and even videos.

    Mr. Guo's students like the new way and think it is interesting. "We are living in the information age. Many students like to work with computers, which makes learning more fun. "Said Tingling, a student of Mr. Guo's.

    "The paper is not easy to keep, hut the code is easy to keep and share." Mr. Guo said," It is worth trying to use new technology in education. Education itself is a kind of creation. I don't want my students to fall behind the times. "

    However, some parents are worried. They are afraid that their children will spend too much time on computers and less time communicating with teachers. But in fact, it's unnecessary. Students still need to look up information in books and write it down when they do their homework. They only use the codes when they hand in their work, which doesn't take them too much time.  Also for teachers, it allows them to cheek the students' work at any time.  And it's also an easy way to share homework with other students.

    To be healthy and happy is important for each of us. Do you want to improve(改善)your health and feel better? Here are some ways.

    Eat whole foods. Eat some healthy foods, such as fruits, vegetables, nuts and a little meat. If you have a healthy eating habit, you'll be happier.

    Exercise. Take up a sport you really like. If you want to keep healthy, try to exercise for 30 minutes a day, twice or three times a week．

    Get enough sleep. It is best to get eight hours' sleep a day. A cup of milk before sleeping may help you get a good sleep.

    Keep yourself busy. This is good because it stops you from having bad habits. To keep yourself busy, you can walk around the house, spend time with your pets, do a sport, or do a hobby you enjoy.

    Spend time with your friends. Spend time and have fun with them. Talk with them, but you shouldn't talk about anything bad. You should stay with the people who are healthy and happy.

    Febri's is a very friendly place. {#blank#}1{#/blank#} We did not see one unhappy staff member (工作人员) — all have smiles on their faces. It is very clean and it has good service.

    The pool is wonderful and deep and there is a baby area in it. My kids loved the elephants around the pool spraying water. We often bad lunch by the pool. You only just push the bell and the staff will bring you a menu. {#blank#}2{#/blank#} It serves the usual food with little change each day.

    Lots of visitors stay here because it's a very good family hotel. {#blank#}3{#/blank#} If you have young kids, I advise you to ask a ground floor rooms, because stairs are too hard for young kids. These rooms are at the back of the hotel, so there is no street noise. It's very quiet. {#blank#}4{#/blank#} I slept with 3 pillows (枕头) under me. The spa is quite relaxing! The location is good. Everything is close by, and the street is not one way here. Next to the hotel door there is a good DVD shop, and you can rent DVD at a good price from it. {#blank#}5{#/blank#} It's a $1 taxi ride to Kuta Market. If you want to go to the beach, you can walk through the hotel opposite to Febri's to get to Tuban Beach.

    Confidence(自信) is very important in daily life. It can help you to develop a healthy attitude (态度). A study shows that the people who are more confident are much happier. They can have more chance to make themselves successful(成功的). But how to be more confident? Here are some suggestions(建议):

    Speak loud

    When you are not confident, you can't do well what you want to do. You speak in a voice so low that other people can hardly hear you. Try to speak loud enough so that people can hear you clearly. The high voice can help you become more confident.

    Play sports 

    Physical exercise makes you tired but completely relaxed. Astrong body helps you be full of confidence.

    Encourage(鼓励) yourself

    Write down a list(目录) of things you did during the day to see how many things you have done well. Did you finish your homework? Did you tell a joke that made everybody laugh? Give yourself praise for the good things you've done.

    Get rid of fear

    Fear(恐惧) comes along with failure(失败). But it's easy to overcome (克服) if you know that failure is part of your life. Don't hide your head just because you said something stupid last time. Try to start again and believe you can do better.

    Pick up a hobby

    If you like singing, sing as much as you can.  In some ways, a hobby can make you outstanding(杰出的). And it will make you happy and confident.