On June 26th, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could now read the whole “map” of the human body: DNA. DNA is something that all humans have, and it tells the body what to do. DNA is the reason that we look like our mother and father, because we get some of their DNA to make our own. Now we can read some of this “map”, and so we can find out more about how our bodies work.

    People have been trying to understand the human body for a long time. In 1860, Gregory Mendel discovered that there is a special reason why we look the same as other people in our family. It is because of small things called “genes” that we have in our body. In 1953, James Watson and Francis Crick made another discovery and found out that those small parts are really messages written in the DNA with a special language.

    In 1961, Marshall Nirenberg and Johann Matthaei found the first “word” that they could understand in that language, showing how DNA tells the cell to build its parts. This meant that one day we would be able to read all the messages that a human body gets from its parents' bodies. Scientists have now found all the words in DNA map, but we still do not understand what they all do. By understanding what just one “word” means, we can help save people from several diseases. So the more we understand, the more doctors will be able to do.

    Most people hope that this will help to make better medicine and help people who are very ill. Other people worry about that when we learn more words and find out lots of other information, we still use it in the wrong way, just to make people more attractive, or stop sick people getting jobs.

    Do you like shopping? Here are some shopping tips for you.

    First, you should write down all the things you want to buy. You should know how much money you need and take enough money with you. People can bring their own shopping bags now so you needn't buy one from the shop.

    Second, it's very important not to buy the things you needn't. There are many nice things in the shopping mall, but what you need is only some of them.

    Third, when you are shopping , you need to go into different shops and compare(对比)things of the same kind. It may take you lots of time to get the best one.

    Fourth, you can go shopping at the weekend or during holidays. On one hand, there are lots of discounts(折扣) on many things. On the other hand, people have enough time to decide which to buy.

    "Dreams may be more important than sleep. We all need dreams." some scientists say. Dreams take up about one quarter of our sleeping time. People have several dreams each night. Dreams are short films. They come to us over and over again. That may be because the dreamer is worrying about something. Dreaming may be a way of trying to find an answer. Sometimes we wake up with a good feeling from a dream. But often we can't remember the dream. Dream can disappear quickly from memory. Some people dream too much to sleep well.

    There are many beachesin Hong Kong. Some of the beaches are the best in the world. There are sometoilets (厕所) , changingrooms (更衣室) and stores to buy food or drinks on most ofthe beaches. People like going to the beaches and have fun swimming. You can swimthere without (没有) danger if you follow these rules：

    ◆Never swim alone (独自).

    ◆Don't stay in the water for a long time.

    ◆Never swim after a meal or when you feel hungry or tired.

Remember：A red flag(旗帜) means it is dangerous for anybody to go into thewater. A blue flag means that it is dangerous for children.

The American book Who Moved My Cheese has been a bestseller all over the world. It teaches people how to face1 in their lives. The book tells us that when facing a new situation in our life，like a new school or new friends，we shouldn't fear. 2 ，use them to make a better life. This book is mainly for teens. 

The book gives a（n）3 of that at school. A school is changing from having two terms to three terms because the number of students there is getting4 . Several teens are talking about this. Most of them are5 . But Chris is not. He laughs and tells a story about two mice，two "little people" and some cheese. 

The four are in a maze （迷宫） looking for the cheese. Here，cheese means something6 in life. But they find the cheese IS gone. The mice realize that they can't change what7 and have to find more cheese. This means finding different dreams. The little people can't do this. They are afraid of changes so they find8 . 

9 Chris finishes the story，the friends understand one thing：10 more cheese，move in a new direction quickly. His friends now understand how this can be used in the changes all teens face，such as doing well at school or feeling good about yourself. 

It was a cold afternoon. I was training（训练） a football team for first graders. It was the day of our first practice. I seated the kids on a long bench on the grass. Any time I was training a new team, I spent a few minutes getting them to 1 one another, each kid saying his name and the names of all the kids sitting to the left of him.

A few minutes later, I decided to choose Alex to start at the end of the bench, go up to each kid, say that kid's 2 and then shake his right hand.

Alex was doing well and he went down the row（一排）—Dylan, Micah, David and Beau—until he reached Ben. He said Ben's name and reached out his right hand, but Ben just 3 there with his right hand 4 in his jacket. "Ben, why don't you let Alex shake your hand?" I asked. Ben stood up and said, "But I don't have that 5 ." He pulled his jacket away from his right shoulder. Ben's arm ran from his right shoulder but his arm 6 at the elbow（胳膊肘）. No forearm, no hand, no fingers! I got shocked（震惊） and could think of 7 to say, but the little kids were curious（好奇的）.

"What happened to your arm?" Alex asked. "Does it hurt?"

Ben took off his jacket to 8 the kids what they all wanted to see. He explained（解释） to them that he had always been that 9 and that there was nothing special. What he meant was that he wanted to be treated（被对待） like everybody else.

And he was. From that day on, he was 10 Ben, one of the players on the team.