When my brother and I were children, we spent a few weeks each summer in the countryside with our uncle. He was a geologist and loved to go on long walks to find stones to add to his collection at the university. More often than not, we followed him.

      One day, we left early, and this time, our uncle gave us two backpacks. “ You can help me carry the samples(样本),” he explained.

      Surely, why not? The whole day, we walked around the countryside, and every now and then, our uncle put stones in our bags. We were a bit surprised that sometimes he also took some stones out from our bags, but thought he had just found better samples.

      We reached the house in the late afternoon. The backpacks were so heavy that we were really tired out when we put them on the ground. Yet our uncle's backpack was half-empty.

      “Why did you give us so many stones?” we asked.

      “I didn't. You did,” he said, waiting for a while before continuing. “ You did not know it, but I made you go through a little attitude(态度) test today.”

What do you mean an‘attitude test'?” we wanted to know.

      “It is something someone once did to me. You see, I listened to every word you said. And whenever you complained(抱怨) about anyone or anything, I added a stone to your bags. And whenever you talked about something in an attitude of positive thinking, I took out a stone. And now look at your backpacks.”

      We did. They were full.

      “I hope you remember this little attitude test. You see, your negative thoughts are like stones. You carry them in your mind just like those stones and start paying attention to what you say and how you say things.”

      This little lesson was one of the most important lessons I ever had. And I remember my uncle with great love for teaching us one of the most important lessons in life – the power of attitude.

    Kaitlin Riffel's dream to end poverty（贫困） started when she was visiting her father，who worked for the homeless．

    "I never realized there were people in the world who didn't have a home or food before，"said Kaitlin，who is now sixteen．"I knew there was something I had to do about that．"

    At age eight，she started raising money to build a playground．"It took me two years，"Kaitlin said．"We started small．We wanted to do something to make a difference．"

    In 2014，When Kaitlin was thirteen，she visited Central America，and saw people going hungry and families living in houses made of cardboard．That year，we set Kids on a Mission，which has helped hundreds of people there．

    "The rooms were smaller than my bedroom，but there would be eight people living in each one，"Kaitlin said．"We also got to see the dirty rivers that those people were drinking out of．"

    Providing clean drinking water，food and clothes for people living in poverty is now an important task for Kids on a Mission．"This young lady is changing the hearts of people，and also changing the world，"said the headmaster of Kaitlin's school．

请阅读下列五个故事简介，将其与上面书橱中陈列的书籍相匹配。其中有一项为多余选项。

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    A couple had two little boys, ages 8 and 10, who were very naughty. They were always getting into trouble and their parents knew that, if any mischief(恶作剧) happened in their town, their sons were probably considered.

    The boys' mother heard that a clergyman(牧师) in town had been successful in dealing with naughty children, so she asked if he would speak with her boys. The clergyman agreed, but wanted to see them separately. So the mother sent her 8-year-old first in the morning, with the elder boy to see the clergyman in the afternoon.

    The clergyman, a huge man, sat the younger boy down and asked him seriously, “Where is God?”

    The boy's mouth dropped open, but he made no reply, sitting there with his mouth hanging open, wide-eyed. So the clergyman repeated the question in an even more serious voice. “Where's God!!?” again the boy made no try to answer. So the clergyman raised his voice even louder and shook his finger in the boy's face and shouted, “WHERE IS GOD?”

    The boy screamed and ran away from the room, ran directly home and hid himself in the cupboard, closing the door heavily. When his elder brother found him in the cupboard, he asked, “What happened?”

    The younger brother replied in a nervous voice, “We are in big trouble this time. God is missing—and they think WE did it!”

    It's Sunday. Children don't go to school on Sundays. But Kate gets up early in the morning. “It's my birthday. I'm eight years old today.” she thinks, “Where are Dad and Mum? I want to know what they can give me for my birthday.”

    Her father and mother are not at home. They are going shopping. And now they are talking about what to buy for Kate.

—Dad: How about the doll? It looks nice. I think Kate would like the doll.

—Mom: I don't think so. She is not a little girl. I think she likes a new dress. Girls often like new dresses very much.

—Dad: But she has a few new dresses and some new blouses. Oh, I think she must be very happy to have a box of colorful pencils and some picture books. Do you think so?

— Mom: Yes. Let's go over there and buy them.

    Think back to a time in your life when you tried something new.

    When I was a teenager I volunteered to pass out water at a local race. I was so excited to see all the different runners who passed by and quickly took a cup of water. Some ran past, some walked past and a few wheeled past.

    I saw so many types of people doing it. I thought maybe I could do it too! The next year I decided to run for the race, but I had little running practice. I just wanted to finish.

    On the day of the race, it was terribly hot. After running for about 5 miles, I was thinking, "I must be crazy. Why did I do this？What was I thinking?" And at one moment, I said to myself, "I will never do this again!"

    That first 10km race was quite an experience. I jogged (慢跑), I walked, and I jogged and walked. At times, I didn't know if I could finish.

    Near the end, a 70­year­old man ran past me, very fast, and I felt a little embarrassed (尴尬的) that I was more than 50 years younger than him and I couldn't even keep up with him. But then I realized something. He was running his race and I was running mine. How often in life do we compare ourselves to others when we really shouldn't？I decided that I would not give up, and that one day I would be one of those 70­year­old men who were still running.

    As I crossed the finishing line, I was proud of myself. I didn't regret (后悔) having such an experience.