Here is a photo. The two girls have big blue eyes and long brown hair. They are both ten years old. They are in the same class. The one in a yellow skirt is Lily. The other one (另一个) an orange skirt is Lucy. Their father (父亲) is Mr. White. He is in a brown coat. Their mom is Mrs. White. She is in a black dress. Who is that boy in a blue cap? He is Lucy and Lily's brother(哥哥), Bob. He is a high school student. Look! Lucy and Lily are in a green car.

    David walked down the street. All he wanted to do was to play basketball with Jim. But his mother told him to return his sister's books to the library on his way to Jim's house.

    In his eyes, books and summertime just don't go together. He thought he had read a lot during the school year. And he had never set foot inside a public library. Today he'd just drop the books off in the outside return box, but it was locked. He had to go inside to return them.

David walked inside the building a few minutes before closing time. He put the books into the return box. After a quick drink of water and a short stop in the toilet, he'd be on his way to meet Jim. He walked out of the toilet. The library lights were turned off. He was locked — in a library.

David tried to use the telephone, but he couldn't find one. As the sun began to set, he searched for a light and found a little one on the desk. He used a pencil to write a note on a big piece of paper. It read, “I'm locked inside. Please call for help.” He put it on the front door. Surely, someone passing by would see it. He then turned his attention to the library itself.

    He was surprised to discover that this place was not so bad. Rows and rows of books! When he saw a book about Michael Jordan on the desk, he picked it up. He opened the book and began to read. He felt that being locked in the library didn't seem to be such a terrible thing.

A myth(荒诞的说法) is something that is not right, but many people believe. There are a lot of myths about the human brain (大脑).

One of the biggest myths is that we only use 10 percent of our brains. The next part of the myth is that if we can learn to use the rest of our brains, then we' ll be much smarter. People say this all the time, but it's absolutely not true! The truth is that although we don't know everything about the human brain, we know that each part of plays an important function. Modern scientists think the"10 percent myth" silly(愚蠢的).

The other most popular myth is about being" right brained" or" left brained". According to this myth, people who use the right side of their brains are more artistic and creative. People who use the left side of their brains are better at math and science. This is as popular as the 10 percent myth, and it's also wrong. In 2013, a study at an American university examined the right brain and left brain myth. According to the study, we use both sides of our brains equally(相等地).

It's true that we use different parts of our brains for different things. We use our left side for language more, and our right side when we need to pay attention. But there is no fact that creative people use the right side more, or that scientific people use the left side more.

We' ve talked about myth, so let's look at a few interesting facts about the brain. First of all, the brain feels no pain. Second, about 75 percent of the brain is made of water. It's also the fattest organ in your body. Here's another interesting fact about the brain. Around the time you turn 18 years old, it stops growing.

Studies show that people now have more free time than ever before. Then why doesn't it feel that way? These days, many of us spend lots of free time playing with our phones. Pictures and information keep getting into our minds, so it's no wonder(难怪) we don't feel fully relaxed. To help you feel relaxed and energetic, it is important to use your free time wisely. Here is how to do it.

Set your goals. Think about what you want to achieve in your free time. Do you want to get fit, learn something new or just relax? Don't worry about what you should do. Just think about what will bring you satisfaction(满足感).

Get creative. When we watch TV or read, we are only taking things in. Try to be a producer for a change. Build a model or write a blog. You will use different parts of your brains and feel more energetic as a result.

Meet like-minded people. Everyone has different interests, so don't expect your friends to be into the same things as you. You can join a club and get to know people with the same interests as you.

Guard your time. Don't let anything else take up(占据) your free time. For example, ____. Otherwise (否则), the line between your free time and everyday life will be unclear, and you won't feel relaxed.

Once you're fully relaxed, you can think about what you'd like to improve in your life. Want to be stronger? Learn a skill? There are many groups, clubs and classes that you can join to help you start a new life. So just get out there and enjoy yourself!