Mike is a middle school student. He used to play computer games. He thought he could get a lot of{#blank#}1{#/blank#}from the games. Sometimes he didn't go to school and{#blank#}2{#/blank#}in a net bar all day. The teacher{#blank#}3{#/blank#}his parents and told them that Mike didn't come to{#blank#}4{#/blank#}.After his parents knew he played computer games in net bars, they were{#blank#}5{#/blank#}with Mike and decided not to{#blank#}6{#/blank#}him pocket money any more. He couldn't play computer games{#blank#}7{#/blank#}he had no money. Every time he{#blank#}8{#/blank#}a net bar, he stopped to take a look,{#blank#}9{#/blank#}he didn't get into it. After a long{#blank#}10{#/blank#}, he gave up playing computer games. Now he has become a good student.

A Cloud of Hope and Danger

    In 2050, a small cloud floats through the air in a hospital operating room(手术室). In the room a patient, suffering from cancer, lies on a table. The cloud surrounds (包围) the patient, {#blank#}1{#/blank#}her body and filling her lungs (肺). The cloud is not smoke or steam. It is made of millions of microscopic robots called nano-robots(纳米机器人). These tiny robots move from cell(细胞) to cell in the {#blank#}2{#/blank#}body, destroying the cancer cells.

    Fighting cancer with nano-robots is only an idea today, {#blank#}3{#/blank#}scientists say that it would be possible in the future. Using nano-robots for good purposes such as fighting disease or repairing the environment may be the {#blank#}4{#/blank#}to many of today's problems.

    However, nano-robots could be a {#blank#}5{#/blank#}risk as well. Since nano-robots are so tiny, they will have to work in large teams of many thousands to 'many millions. For this reason, nano robots will have to be programmed to build {#blank#}6{#/blank#}. Scientists will not have the ability to build millions of nano-robots one by one.

    This {#blank#}7{#/blank#}to reproduce(复制)is making some scientists worried. What if something goes wrong in the programming? Quite a lot of crazy nan-orobots would be far {#blank#}8{#/blank#}than any disease. Some people think that if they get out of control, nan-orobots could destroy the Earth.

    What should be done? Should we continue{#blank#}9{#/blank#}nan-orobots or should we search for other methods? This is one of the many difficult {#blank#}10{#/blank#}that we have to make in the future.

    Researches show that successful learners have some good habits in common.

    Good learners often connect what they need to learn with something {#blank#}1{#/blank#}. Studies show that if you are interested in something, your brain is more active and it is also {#blank#}2{#/blank#} for you to pay attention to it for a long time. For example, if they need to learn English and they like music or sports, they can {#blank#}3{#/blank#} to English songs or watch sports programs in English.

    Good learners think about what they {#blank#}4{#/blank#} good at and what they need to practice more. Even if you learn something well, you will forget it {#blank#}5{#/blank#} you use it. "Practice makes perfect." Good learners will keep practicing what they have learned, and they are not {#blank#}6{#/blank#} of making mistakes.

    Good learners usually choose the best way of the following methods when they study. For example, they may take notes by writing down {#blank#}7{#/blank#} words or by drawing mind maps. They also look for ways to review what they have learned. They may do this by explaining the information to {#blank#}8{#/blank#}.

    Good learners often ask questions during or after class. They even ask each other and try to find out the answers. Knowledge {#blank#}9{#/blank#} from questioning.

    Learning is a lifelong journey because every day brings something new. Everything that you learn becomes a part of you and changes you, so learn {#blank#}10{#/blank#} and learn well.

    Music is heard in every corner of the world: in every community and in every culture. Why? Music is part of human nature and it is needed for many {#blank#}1{#/blank#} in our lives. Music plays an important part in helping us {#blank#}2{#/blank#}, we hear it when we are shopping, in hotel, airports, and restaurants. There is music that you can dance to, sing to, or you may just{#blank#}3{#/blank#} listen to it for entertainment. In the movies, music is as important as the acting. Although most people don't {#blank#}4{#/blank#} it, a good movie has music that helps create the mood for the story. However there are times when music does more harm than good, for example, when you listen to music that is too loud. You might think this is OK now, but that's {#blank#}5{#/blank#} you're still young. Listening to loud music is not good for ears and it can even make you deaf. If music is necessary part of your world, keep the volume (音量) down.