I still remember the last time when two of my children and I went to the playground. It had rained during the night and the playground was very muddy (泥泞的). They had just put on clean clothes, so I was a little worried about the pools of water on the playground. It was not long before Kathy got her beautiful skirt dirty on the playground. She dug through the rocks. I was about to blame her for getting her clothes dirty when she ran towards me with a smile on her face. When she got to me, she handed me a little heart-shaped rock and said, "Here Mom! Here is a heart for you－just because I love you! Keep it!”with tears in my eyes, I thanked her.
    Should I blame her for getting her clothes muddy? No way! I still have that little heart-shaped rock. It is one of the best gifts that I have ever received. I realize that many times it is not necessary for us adults to worry about the small things our children do. Let them do what they'd like to.
    I will spend a lot more time on the playground with my children. I'm sure I will learn a lot from the children. It reminds me of some years ago when my grandfather told me, "You would not enter the kingdom (王国) of happiness until you pretended (假装) to be a small child.”

    Alex, Nicole and Vickie are friends. They live in the same neighborhood. They want to make some money to buy Christmas presents.

    "We need to print out fliers（传单） and pass them around to all the houses, "says Nicole. Alex's dad helps them print out fliers. The three friends go to all the houses and put a flier in everyone's mailbox.

    "It's winter," says Vickie. "There is lots of snow on the ground. Maybe people will need us to sweep the snow for them."

    First, Mrs. Jones hires the children to sweep the snow from her driveway（车道）. She says, "I have twin baby girls. I am much too busy to sweep the snow myself."

    Then, Mrs. Smith calls them. She says, "I am very old, and the snow is much too heavy for me to move."

    Then, Mr. Lee visits them. He says, "My garden is much too big to sweep all by myself. Can you help me?"

    The children work very hard sweeping the snow. It is cold, but they also have great fun. They make 30 dollars in all. Now they can buy nice Christmas presents for their friends and families.

     Nancy is an English school girl. She studies in a middle school. She has a little brother. His name is John. John is only four. Nancy likes him very much.

    Today is Sunday. Nancy wants to do her homework. She takes out her pencil-box and opens it. “Oh, dear! Where's my pen?” She can't find her pen. She goes to ask her brother in his bedroom.

   “John! I can't find my pen. Can you see it?  Oh, what are you doing with my pen? ”

   “I'm writing to my friend, Peter.” John answers.

   “But how can you? You don't know how to write! ”

   “It doesn't matter. Peter can't read. ” John says.

根据短文内容，选择正确答案。

    Tubbat and his wife, Tosontsagaan, are villagers in Inner Mongolia's Ejin Banner(内蒙古伊金霍洛旗),where there is the Badain Jaran Desert( 巴丹吉林沙漠), one of China's four biggest deserts. They have spent years fighting against the desert. They plant trees in the desert area to keep the sand and protect the environment.

    Tubbat has planted more than 50,000 trees covering about the size of 133 football fields. "When I was a child, there were lakes, forests and animals. And it rained a lot," said Tubbat. "But sandstornas turned the green land into a desert."

    Tubbat started to plant trees in 2002 after he finished his job as a government official(政府官员). His wife supported his decision. They did all this for free and even spent most of their own money. "Many people do not understand why I do this. They don't know the happiness I feel when I see the land turn green again," said Tubbat. "My wife's support gives me energy. Our children want us to live in a city. But this is not the right time. I want to grow more trees," he said.

    Tubbat is happy that more people have begun to plant trees after hearing his story. Some have even visited him to learn how to plant trees in the desert." Trees can bring rain and animals," he said. "I want to be a tree, to grow up in the desert and hold the sand until I die."

    John was born without arms. As a child, he learned to do many things with his legs. But there were a lot of things he couldn't do. His parents even had to feed him. His seven brothers had to help him to get dressed.

    One day his mom decided not to help John anymore. She told John's brothers not to help him either. "Let John do everything on his own," she said. "If John needs to eat, let him eat by himself. Let him get the dish himself. If he breaks up a few dishes, it's fine. No one will help him to get dressed either. Let him wear his clothes himself. If he can't get dressed himself, then let him run without clothes. But no one is allowed to help him. He has to learn to do everything himself."

    John's mother loved him. She wanted to help him. But if she always helped him, he wouldn't learn anything. She wanted him to be independent.

    Soon John learned to do everything by himself. When he was sixteen, he could even drive a car with his feet. John felt very proud. He thanked his mother for making him independent.

    Today John is a grown-up man. He has a business of his own and he is very successful. He also travels around the world.

    John likes children very much. He likes to talk and play with them. He tells them that they can learn to do anything. He teaches them how to be independent.