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For better eyesight, doctors advise limiting the hours of screen time and encourage having enough eye resting time.
However, another study shows that sitting in front of computer or TV screens for long hours is not the only reason for myopia(近视). An Australian research team studied young children in Sydney and Singapore to find the reasons for myopia.
The research team found that the prevalence(流行)of myopia among children in Sydney was lower than children in Singapore, even though they spent more time in front of computer and TV screens. The major finding is that children in Sydney spend longer hours on outdoor activities than those in Singapore.
Indoor and outdoor sports activities both make the eyes focus on more distant objects, which prevents the eyes from changing shape. But outdoor activities may better help avoid myopia than indoor sports activities.
Jane Gwiazda, who does research in sight problems, says: “Natural light is good for eye growth. And extra vitamin D from the sun might contribute to eye growth.”
Many doctors suggest that every child get its first eye test done when he/she is about two and half years old, and even if his/her sight seems perfect.
It is necessary for myopic children to wear glasses to prevent headaches, trouble reading or injuries. It is also important that schools invite doctors to test their students’ eyes.
If that is not possible, school teachers should at least encourage parents and children to have regular eye examinations and wear glasses. And parents should remember not only to limit the total screen time for their children, but also to encourage them to spend time outdoors.

  1. 1.

    What’s the aim of the study by the Australian research team ?

    1. A.
      To find the reasons for myopia.
    2. B.
      To find the ways to treat myopia.
    3. C.
      To prove the bad effects of myopia.
    4. D.
      To prove the prevalence of myopia.
  2. 2.

    Why are there fewer children with myopia in Sydney than in Singapore ?

    1. A.
      Because Sydney children watch less TV.
    2. B.
      Because Sydney children have more eye resting time.
    3. C.
      Because Sydney children use computers less.
    4. D.
      Because Sydney children do more outdoor sports.
  3. 3.

    What conclusion can we draw from the passage ?

    1. A.
      Sydney children don’t study hard.
    2. B.
      Singapore children do few exercises.
    3. C.
      Outdoor activities do more good to eyes.
    4. D.
      Room light does harm to children’s eyes.
  4. 4.

    Which of the following statements is TRUE ?

    1. A.
      Children should have eye tests as soon as they reach school age.
    2. B.
      Doing outdoor activities with no glasses is good for myopia children.
    3. C.
      Focusing on distant objects can help the eyes keep their original shape.
    4. D.
      Children should limit their time in the sun in order to protect their eyes.
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For the most part, you are probably only exposed to the music that is played on your favorite radio stations and TV shows, music Web sites, or the music that your friends and family members enjoy. While you probably know a lot about your favorite type of music, it can be a rewarding experience to enlarge your horizons(眼界), discovering artists and types of music that you’re not familiar with. Who knows, you might discover you like certain types of music you never even considered.
Have you ever wondered about the history and influences of your favorite types of music ? For example, did you know that rock ‘n’ roll originated(起源)from the blues, and that the blues began as a form of musical expression for African Americans during slavery(奴隶制度)?Did you know that most hip-hop is heavily influenced by early rhythm blues and jazz ?
There are many fun ways to learn about different musical styles and their historical roots. For example, if you like hip-hop, listen to some of your favorite CDs and take note of the samples the performers used to create the songs. There is a possibility that the artist used parts of older songs to create the music. You can go to the library or online to learn more about the artists and listen to more of their music by checking out CDs from the library or downloading songs online for a small fee.
You can learn so much about culture and history just by paying attention to different types of music and what is being expressed in the songs. There are so many different styles of music to learn about, and you owe(欠)it to yourself to make an effort to listen to and learn about them.

  1. 1.

    The main topic of this passage is _____.

    1. A.
      creating music
    2. B.
      performing music
    3. C.
      enjoying your favorite music
    4. D.
      learning about music
  2. 2.

    What music did African Americans use to express their feelings of being slaves ?

    1. A.
      Rock ‘n’ roll.
    2. B.
      The blues.
    3. C.
      Hip-hop.
    4. D.
      Jazz.
  3. 3.

    How can you learn about culture and history through music ?

    1. A.
      By writing down the names of the music.
    2. B.
      By creating music from older songs yourself.
    3. C.
      By caring about what is being expressed in music.
    4. D.
      By keeping a record of fees after downloading songs online.
  4. 4.

    By saying the underlined sentence in the last paragraph, the author probably means that _____.

    1. A.
      you should try harder to learn about music
    2. B.
      you should return something to music
    3. C.
      you should borrow music CDs from others
    4. D.
      you should buy music CDs yourself
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