It was Saturday again. Grace and Karen disliked Saturdays. That was another thing the twins had in common. They shared the same clothes and tied their hair in the same manner. In fact, it was hard for their classmates and teachers to tell them apart sometimes.

    Unlike their classmates, they had to get up early every Saturday to prepare for their lessons. Grace had to attend the art lesson and Karen had to attend her ballet lesson. "How I wish I could do something different today," said the twins with one voice. All at once, an idea came to Grace and Karen at the same time. "How would you like to be me for a day?" they asked each other. It seemed like a wonderful plan to them. After giving each other a description of their own mends. Grace put on Karen's ballet dress while Karen put Grace's brushes and paints into her bag. Then they left for their classes.

    When the art lesson started, Karen was lost. Unlike Grace, Karen was poor at drawing. When the art lesson finally ended, Karen didn't dare to hand in her work.

    Meanwhile, Grace was struggling in the ballet class as well. As she had no idea about the dance steps, she had to follow her classmates blindly. As a result, she kept knocking into them. Their ballet teacher became impatient with her, "Karen, you should remember the basic steps. You can't rely on copying what others are doing."

    When Karen and Grace got home, they were tired out. They decided that they would never try to be someone else they were not. It seemed that the grass was not always greener on the other side.

    Humoody was born in Iraq. When he was two years old, his face was badly hurt and he couldn't see any more. He came to the United States to get medical care and now lives with an American family in Washington State.

    Humoody quickly learned to use a cane(手杖) to get around. He also started clicking(使发出咔哒声),sensing objects by listening for echoes (回声). To help Humoody develop this skill, his family found him an

echolocation(回声定位_) teacher, Juan Ruiz. Ruiz is also blind and he has been echolocating for many years." Even someone who's not blind can try it," he says. Stand facing a wall a couple of feet away. Make some noise by clicking or talking out loud. Listen carefully. Now walk a little closer to the wall and keep making your noise. Can you hear how it changes as the wall gets nearer?

    Experiment with how your voice or clicks sound in different parts of your home. "Every room has a different sound to it," Ruiz says.

    How does the sound of a kitchen or bathroom compare to the sound of a carpeted(铺有地毯的) room? What about a long hallway? The differences you hear are the same kinds of clues(线索) that blind people listen to. With lots of practice, their brains have learned to get information from these clues.

    Humoody has never let being blind slow him down. Learning how to echolocate is helping him get around more easily and safely, especially in places where he can't take his cane, like the football field.

    It was 8:30 and I was lying in the sun, listening to my CD.

    Then my mum came out. She wanted me to go out with her. She told me about this place called Give Kids the World. It's a special place for families to spend a vacation when a child had a life-threatening（致命的）illness. There were several jobs she did there, like gift giving and ice-cream serving. Mum said I would enjoy it, but I thought this was a boring job.

    Mum told me we were going to take a toy and an ice-cream to every child in the village. We got to the first house and I knocked on the door and shouted, "Gift Giving", and a woman answered it. Sitting in the middle of the bedroom was a boy in a wheel chair. I gave him the gifts, and his face lighted up with happiness. I walked out and thought," That must be boring, unable to jump around."

    As I came into the second house with gifts, it seemed a little strange that the child didn't see me. His mum said something was much wrong with his eyes, so I needed to go and stand in front of him.  When I did that, he became very excited and made a sign for "thanks", though his legs couldn't move at all.

    When we went back home, Mum told me these kids might not live to see tomorrow. Suddenly, I understood I should be more thankful that I don't have these illnesses. I no longer wanted to be at home listening to my CDs. I would rather be doing this, maybe making a difference in these kids' lives.

    Mr. and Mrs. Wilson begin their vacation today with their children. And they have to be at the airport (机场) at 11:40 a. m, Yesterday Mr. Wilson said, "It'll take us half an hour to get there in the taxi, so we all have to be ready (准备好的) by eleven o'clock. Nobody should be late.

    Now it's ten minutes to eleven. But they are still all running around doing things, except Mrs. Wilson, who is enjoying the sun in the garden.

    Her husband and children are very surprised (惊讶的) that she isn't in a hurry. Then the taxi arrives and Mrs. Wilson says to them, "Well, I knew that this was going to happen, so before I went to bed last night I moved all our clocks and watches ahead (提前) twenty minutes. So now we can go to the airport without worrying about (担心) being late."

    Ray's wedding had gone off smoothly. Everyone seemed to have had a good time. A few people had too good a time; they went home with designated (指派的) drivers. All evening, the gift table remained unguarded. Who would steal anything, Ray thought. He had never heard of such a thing happening at a wedding. But his best friend Aaron said there was a first time for everything. He strolled out regularly from the inside festivities (庆祝) to check on the gift table, making sure no one suspicious was hanging around it.

    Ray and Julia went on a 3-week honeymoon to Italy right after the wedding. When they got back, they opened all the gifts and sent out thank-you notes. But there was one problem. A married couple that used to be good friends had apparently given nothing. This surprised Julia, because Walt and Mary said they were thrilled to be invited. And, they actually seemed to have had a great time at the wedding. Frankly, Ray didn't even care if they hadn't given a gift. He just needed to know whether to send a thank-you note. Ray called Aaron. Aaron said maybe Walt had left an envelope on the gift table like Aaron had. "Yes, but we got your envelope with the cash inside," Ray said. "Maybe my envelope looked too thin, and some thief thought Walt's envelope looked nice and fat."

    Aaron asked Ray if he had looked everywhere for Walt's gift. Had he called up the wedding site to see if anything had been left behind? Ray said that he had looked everywhere and made a lot of calls that were fruitless.

    Ray didn't know what to do. If he sent Walt and Mary a thank-you note for a gift they hadn't given, they would be insulted. If he didn't send them a thank-you note for a gift they had given, they would get angry.

    "What would you do?" Ray asked. Aaron said he would call Walt up and tell him the problem.

    "You can't go wrong with simply being honest," Aaron said.

    "Oh, yes, you can," Ray contradicted (反驳) him. "Sometimes it's best to let sleeping dogs lie." But he thought about it, and finally decided that Aaron was right. He called Walt and told him the problem. Walt said that yes, he had given an envelope. In fact, the envelope contained $500 cash.

    "$500?!" Ray asked. "That's a lot of cash, Walt!" Walt admitted that it was, but he had gotten a fat raise (加薪) early that year and Ray's was the only wedding he'd been to in quite a while. Ray thanked him very much, and apologized sincerely for someone stealing Walt's generous gift. Walt told him that it was "only money".

    When Ray told Aaron about Walt's gift, Aaron laughed. "The only thief at the wedding was Walt! I quit playing cards with him last year because I caught him cheating. And it was only a $10 pot! I'm sure I told you about that."

    "Yes, you did tell me," Ray said. But, of course, he had to send Walt a thank-you note anyway.