We spent this holiday with our uncle. He loved to go on walks to collect stones. One day, he bought us backpacks(背包） and asked us to go to the mountain with him and carry the stones.

    The whole day we walked around. Every now and then he put stones in our bags. To our surprise, he also took some stones out from our bags. But we thought he had just found better ones. When we returned to the house, we were very tired. The backpacks were so heavy that we felt relaxed when we put them down. 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. “You didn't know it, but I gave you a test today. I listened to every word you said. Whenever you were complaining (抱怨), I added a stone to your bags. Whenever you talked about something with positive (积极的) thinking, I took out a stone. And now look at your backpacks.”Our backpacks were full of stones.

    “Your negative(消极的) thoughts are like stones. You carry them in your mind just like those stones in a backpack. Once you have more negative thoughts ,your mind will be heavier.”

    With great love, our uncle taught us one of the most important lessons in life.

    Billy Smith loves water. His hobbies are swimming and diving (潜水). And he likes golf too. Billy's a very lucky man because his interests are part of his job.

    Billy lives in the USA with his wife, Linda. They got married ten years ago. At that time, Billy worked in an office in New York. He worked with computers. He worked five days a week, from eight in the morning to seven in the evening. He hated his job. There was no time for diving or golf. Linda worked in a shop and she didn't like her boss (老板). She hated the cold winters in New York too. So Billy and Linda decided to leave their jobs in New York and buy a house in Florida. The weather is fantastic in Florida. The days are sunny and hot.

    Now Billy goes diving every day and he goes to golf courses (球场) every day. But he doesn't play golf very much—he works at the golf course. He travels around Florida and he goes to lots of different golf courses. Sometimes Linda goes with him and sometimes she stays at home. There are lakes on many golf courses and Billy only goes to golf courses with lakes. Players often hit their golf balls into the water.

    In his new job, Billy dives in the lakes for these golf balls. On some days, Billy collects two thousand golf balls. Linda has an office in their home and she works there. She sells the lost golf balls that Billy finds. For golfers, they are cheaper than new golf balls.

    Both Billy and Linda are very happy now.

根据材料内容简要回答下列问题。

    Casey was painting the sets (粉刷布景) for the school play (戏剧). When she worked, the actors practiced on stage (舞台). A girl named Amelia played an important role in it. Now she was singing.

    {#blank#}1{#/blank#}She saw the actors practice again and again. She remembered the words to all the songs by heart.

    Casey's friend Kareem helped her paint. "You should try out for the next play," he said. "You're good."

    Casey said, " {#blank#}2{#/blank#}"

    The next day, Casey and Kareem finished painting the last part of the sets. They were cleaning up their brushes and paints.

    "It's too bad!" Ms. Brown came in and said. " {#blank#}3{#/blank#}She can't be in the play. What will we do?"

    Kareem and Casey heard this. "You know all the words to the songs. You can take over Amelia's part!" said Kareem

    "No, I can't," said Casey.

    "Sure you can. {#blank#}4{#/blank#} You must do it!" said Kareem.

    Casey really wanted to act on stage. She thought, " {#blank#}5{#/blank#}" Then she took a deep breath (深呼吸) and walked to Ms. Brown, "I know what we can do!"

    In 2011, when British photographer David J. Slater was visiting a park in Indonesia, his camera was taken away by a group of black monkeys. The result was hundreds of monkey selfies(自拍照). The best ones show a monkey smiling toothily for the camera. {#blank#}1{#/blank#}

    Nobody knew they would create a copyright (版权) battle three years later.

    Last month, a website put the monkey selfies online under a collection d free photos without Slater's permission (允许). {#blank#}2{#/blank#}

    However, the website refused to do so. They said that according to US copyright law, whoever pushes the button on the camera owns the copyright to the photo. {#blank#}3{#/blank#}

    They said, "US copyright law says that works that come from a non-human source can't ask for copyright. That means monkeys don't own copyright. "

    {#blank#}4{#/blank#} He said he bought the cameras; he spent a lot of money traveling to Indonesia, and it was his carelessness that allowed the monkeys to take his cameras away.  All these have made him own the pictures, no matter who pushed the button. In a sense, the monkeys helped him take the photos, Slater said.

    {#blank#}5{#/blank#} Who do you think will win this interesting battle?

A. It was the monkeys but not Slater that pushed the button.

B. As of now, there has been no result in the Monkey Selfie case.

C. Slater then sold the photos and they became popular on the Internet.

D. Slater asked the website to take them down since he owns the copyright.

E. Slater argues that the pictures belong to him as they were taken from his camera.

    The professor always tried so hard. He had tons of brilliant ideas—but they never worked. Time after time, he would dream up an amazing idea that was sure to change the world—and then it didn't. {#blank#}1{#/blank#} "A time machine!" he shouted. The professor's dream wasn't just any old time machine. {#blank#}2{#/blank#} 

    But his wife wasn't so sure about the professor's great idea. "It'll never work. You can't make time," she doubted. The professor disagreed. "{#blank#}3{#/blank#} If you can make money and save money, why can't you do the same with time?"

In his workshop, the professor drew lots of plans for his new time machine. He soon lost track(轨道) of time. He created model clocks of every shape and size.{#blank#}4{#/blank#} Finally, he made an amazing discovery—a way to save time and give him lots of extra(额外) time. "I've got it!" he cried. "If I give up my time machine project, I'll have plenty of time for other things!"