Whenever the exam season comes, stress（焦虑） may come along. Here are some_______that helped me and my friends through this season.

When the stress of exams is really hitting me, I stop and take a walk. I usually borrow m neighbor's dog and_______for about fifteen minutes. Many boys would simply choose to run for a while, or play ball games. Having some_______ drives away your stress easily most of the time.

And_______you find music helpful, give it a go. Listening to your favorite songs will surely make you_______. The best thing about this is that you don’t have to go_______

But if you are a book lover just like me，_______a book you like for half an hour. Reading can take you to places you've_______ been. Putting yourself into a new world helps you forget your stress in this world for a little bit.

For sure, there's nothing better than laughing. Laughing is the best medicine. It can really keep_______off your mind! Very often I call my best friend and we__________our good times or something funny, and I'm feeling better before I know it.

Remember many others also face the problem of stress just like you, and it is not something that cannot be dealt with.

Many great inventions have changed the way we live. The first great invention is the one that still plays an important role in our daily life today—the wheel. This makes it easier to carry heavy things and to travel long distance (距离).

In the 19th century, many great things were invented, such as the camera, the light and the radio.

In the 20th century, there were also some great inventions like the helicopter（直升机） in 1907, the sound film in 1923. This was also a time when a new material Nylon first came out in 1935. It changed the kind of clothes people wore. These inventions made people’s life more comfortable and more convenient.

Of course new inventions continued to be made. People began looking for ways to go into space. Russia made the first step. Then the United States took a step. Since then other countries, including China and Japan, have made their steps into space. In 1969, Americans first walked on the moon.

Many years ago, my dad got heart disease（疾病）and had to be sent to the hospital. He couldn’t work for a long time so he decided to be a volunteer at a children’s hospital.

There was a girl who could not walk because of a disease. She wouldn’t do anything and was very sad. My dad decided to help her. He started visiting her in her room, bringing paints, brushes and some white paper. He put the brush in his mouth and began to paint. He didn’t use his hand at all. Only his head moved. After finishing the picture, he said to the girl, “Look, I can paint without hand. You can also do anything you want. You should not be so sad.” He tried his best to teach the girl to paint the picture.

At last, the girl began to paint herself, and learnt to walk bravely. However, the doctors felt surprised that there was nothing else they could do for the girl and they let the girl leave the hospital. Several months later, my dad received a call from the little girl. She said she could walk. She mailed my dad a picture she had drawn. At the bottom it read, “Thank you for helping me.”

My dad would cry whenever he told us this story. He would say that love can be more powerful than doctors, and my dad died just a few months after the little girl gave him the picture.

To reach your full potential (潜力), you should live like a sportsperson. To live like a sportsperson, you need to have the following things.

A goal (目标). Sportspersons know exactly what they are trying to achieve. They have a goal and work toward achieving it. Similarly, you need to have a goal. You need to have a purpose in your life. In fact, this is the starting point. It will drive the other parts of your life.

Discipline (纪律). Sportspersons are disciplined in their training. They have to do certain things whether they feel like it or not. Similarly, you need discipline in completing your tasks. Discipline will make you do what you need to do.

A coach. A sportsperson needs a coach to reach his potential. The coach will help him know what to do and get him back on track (轨迹) if necessary. Also, if the situation changes, the coach will come up with a new plan for him. Similarly, having a mentor (导师) will help you reach your goals faster. It might not be easy to find a mentor in real life, but you can learn from virtual (虚拟的) mentors. By reading their books and watching their interviews, you’ll know what advice they would give to you.

Supporters (支持者). Just like a sportsperson needs supporters, you also need supporters. These are people who encourage you to keep going in difficult times. These are people who believe in you no matter what happens. Having supporters can be very important.

Live like a sportsperson, and you will be on your way to reaching your full potential.

Have you seen some machines that e    56     used plastic bottles and give some coins to the users?

Recently, such machines have a    57     at universities in Chongqing. They can turn rubbish i    58     treasure and encourage the public to recycle rubbish. The machine is as l    59     as a fridge. Users put an empty bottle in the machine. It is identified(识别) by a small camera. Then it is put into a built-in bin. The users can get some coins. They can also give away the money.

W    60     the machine is filled with bottles, it will tell the company’s head office. Near stations they will send workers to have bottles collected, packed and sent to the company.

The bottle recycling machines could greatly encourage the public to recycle rubbish and s    61     natural resources. Now the machine only eats plastic bottles. At sometime in the near future it will also cover others, such as glass b    62     to turn more rubbish into treasure and make full use of the natural resources.

People can a    63     see similar machines in Shanghai. In the future, m    64     such machines will appear at some large stations, b    65     stop, neighborhoods and school.