"Listen carefully to what I say," the time traveler said, "I shall tell you something that you will not agree."  

 "Why will we not agree?" I asked.

 "Because the science and mathematics you know are not correct,"  he said. "You believe there are only three dimensions(三维空间)-length, breadth(宽) and thickness." 

 "There is nothing to argue with that, " the youngest member of our little group said.

 "Exactly!"  the time traveler answered, "But there is also a fourth dimension - time."   

 "We all know about time, " another member of the group said. "Time passed."

 "I do not agree,"  the time traveler said, "Length, breadth and thickness do not pass. They stay in the same place in space.  We move about them. I can prove that time is the same. It does not pass. We move in time the same way that we move in breadth, length and thickness."

 None of us believed the time traveler, and we argued with him for many hours.

 "If we could travel back in time,"  the scientist said, "We could do things to change the future." 

 "If we could travel forward in time," the doctor(博士) said, "we could do things that change our present." 

 The time traveler smiled, "It is clear," he said, "that there is only one way I can show you that I am right. We must do an experiment. Please wait here." 

 He left the room and soon returned, carrying what looked like a clock.

 "This is a model of a time machine. It took me two years to make it," the time traveler said. "I want all of you to understand that when I start the machine, it will immediately travel in time and disappear from the present." 

 He turned to the youngest of all. "Give me your hand," he said.

 The young man put out his hand. The time traveler took it and placed it on the machine. Immediately, there was a sudden wind, and the little machine disappeared.

 I was certain this was not a trick, but the doctor was not so sure.

 "Are you asking us to believe," he said, "that the machine is now in a different time?" 

 "Certainly! In my laboratory, a full-size machine is almost complete. As soon as it is complete, I shall send myself on a journey through time. Would you like to see my machine?"

 "Are you serious about this?" the doctor asked.

 "I have never been more serious about anything," the time traveler said, "Come." 

We followed him to his laboratory. There, we saw the actual machine, not quite complete, but large enough for a man to sit in.

    Some parents are always comparing their children with themselves when they were young, or with other people when they were children.

    "When I was your age," a father said to his sixteen-year-old son one day, "I was at the top of my class every year. And I knew what I wanted to do when I left school. I had goals. You are always at the bottom of your class, and you have no goals."

    The man's son said nothing. He had heard this from his father many times.

    "And when your mother was your age," the boy's father went on, "she had a good job and she was earning money. You don't even have a part-time job. You earn nothing."

    The man's son still said nothing. He had heard this before, too.

    "And when your older brother was your age," the boy's father went on, "he studied hard. You just waste your time."

    And the man's son still said nothing.

    Finally, the boy's father said, "And when Abraham Lincoln was your age, he worked all day and studied at night."

    This time the son could not stay silent.

    "And when Abraham Lincoln was your age, Father," he said, "he was the President of the United States. What are you?"

His father had no answer to this.

A little bear is called Herry. He doesn't like brushing1. Every day his mother2to him,

"Herry, it's time for you to brush your teeth and go to bed.""I know, Mom." says Herry unhappily. He goes to the3and turns on the tap(龙头). He keeps water running. His mother thinks he is brushing his teeth.

"Too many teeth! How can I brush all these teeth?" Herry feels sad. "Maybe I can do it tomorrow morning. It is too bad to brush teeth every day." He looks at his4teeth and thinks, "I don't want to brush my teeth today. I can brush them twice tomorrow. That will be OK."

But the next day, he doesn't brush his teeth. He always thinks he can do it tomorrow. One morning, when he gets up, he finds all of his teeth have gone5. He cries, "My teeth! My teeth! " His mother comes into his bedroom and says, "What's6?" "I don't have any teeth now, Mom! I7to brush my teeth every day. " He cries again and again. His mother takes him to see the8. The doctor says, "Oh, little bear! I am9to say you can't eat any food now. There aren't any teeth in your mouth."

The little bear cries and cries10. Suddenly he wakes up, "Oh, thank goodness! It is a dream. A terrible dream." He gets up at once and goes to brush his teeth. He tells himself to brush his teeth every day.

Betty is the new monitor of Class 4, Grade 7. How can she be {#blank#}1{#/blank#} good monitor? {#blank#}2{#/blank#} (Betty) teacher Mrs. Brown tells her like this: 

Study hard and get high scores. Show everyone you are a good student, and you can {#blank#}3{#/blank#} (be) their monitor. 

Be nice to other students. You are their monitor, {#blank#}4{#/blank#} you are also their classmates. {#blank#}5{#/blank#} be friends with everyone. Then they'd like {#blank#}6{#/blank#} (listen) to you. 

{#blank#}7{#/blank#} (not talk) at the class. When the teachers are out, your classmates like to talk to each other. Want them to keep quiet? Don't shout. Use {#blank#}8{#/blank#} (word) like "Please" or "Thank you".

Talk with your classmates. Ask {#blank#}9{#/blank#} (they) "Do you think I am a good monitor? " or"What can I do {#blank#}10{#/blank#} (help) you?", so they would like to talk with you about these things.

One night, I finished my homework a little earlier than usual. Seeing my parents still being busy with housework, suddenly, one thought came to my mind. I decided to write a note to Mom and Dad. I was a young teenager and it was the first time that I ever wrote something that wasn't school homework. At that moment, I just wanted to let Mom and Dad know I loved them, how much they meant to me, and how grateful I was to them for all that they gave to their daughter. Being too shy to say these things face to face, 1 wrote them down in a note for my parents to find after I went to bed.

Later that night, I heard a gentle knock at my door. Sleepily, I got out of bed and opened the door up. There were Mom and Dad with a look of such love on their faces. Mom and Dad hugged me and thanked me for my note. I even could see tears in Mom's eyes. Seeing the happiness I gave them made my own heart jump for joy. I was amazed that my simple words could touch them so much.

That beautiful memory has stayed alive in my soul(灵魂) ever since. I began to share my stories online with thousands of people all over this world. It reminds me not to be shy about sharing happiness with this world. They can be thanks, hugs and smiles. They can even be a simple note written with love.

All that matters is that you share them in different ways. All that matters is that you use them to make this world more beautiful. 

I often felt shy in front of a group of people. So I didn't like speaking in front of others. And my first day at the new school made my classmate laugh. 

My teacher asked me1 my name on the blackboard. Of course, I knew my name and knew how to write it. But standing at the blackboard with the eyes of so many classmates on my back made2 nervous. I forgot all the things but those eyes. I wanted to cry. I didn't know what to do. I could not write a word. 

"Just forget us and write your name, " the teacher said3 and walked to my side, "What is your name?" 

I was too4 to answer. 

"Richard, " all the students answered5 me. Then they laughed loudly. 6 sad I was! 

After class, the teacher told me to go to her office. She told me that people might feel nervous7 they speak in front of many people. Then I8 that there was nothing. I just needed to do it as often as possible. 

Since then, I have become brave. I have tried my best to take part in some speech competitions. I used to think if I could not go on, life is nothing but an awful song. But now I know the9 of courage(勇气). I believe that I would be10 confident student.