摘要: 电子音乐 电子音乐.指运用电子方法产生和修饰的音乐.对于管弦乐队的传统乐器有限音色的不满足是产生电子音乐的最初动力.作曲家可以十分方便地控制音响的音高.时值.力度和音色等各种因素.这样就使现场演奏电子音乐作品成为可能.新一代电子音乐家不仅用计算机控制电子音响合成器.完成音乐作品.还用计算机进行音乐风格分析.辅助音乐教学.甚至自动作曲.

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阅读理解。
                                               Protect Yourself When Home Alone
       There are many things that you should be careful with when you are alone at home. Read the following
  solutions (方法) to protect yourself.
       ●Keep the door locked when you are alone at home. Many people think it's the best way to protect
  themselves.
      ●Keep a list of phone numbers to call for help--such as 110, the police station or a neighbor's number.
      ●Be careful with the electrical appliances (电器). If you don't know how to use them, ask your
  parents. Make a safety check before going to sleep.
     ●Look through the keyhole when you hear the doorbell. If there are strangers, ask "Who's that?" with
  the door locked and say "Come back later." Don't tell them that your parents are away. Say "Mum's
  having a shower." or "Dad's having a sleep."To ignore (忽视) the doorbell is not a good idea because
  sometimes bad people ring doorbells to see if anyone's at home.
根据短文内容,从右栏描述自我保护的方法中,选取与左栏情景相匹配的选项,并将代表该方法的字母写在题前括号内,同时希望你在今后的生活中能够运用这些方法来加强自我保护。
 
Protect Myself When Home Alone
Situations
Solutions
  (     ) 1. Stay at home by myself,
  A. I should keep a list of phone numbers.    
  (     ) 2. To call for help,
  B. I should keep the door locked.
  (     ) 3. Before going to sleep,
  C. I should ask "Who's that?" with the door   locked.
  (     ) 4. If there are strangers ringing the doorbell,
  D. I should say "Mum's having a shower." or 
"Dad's having a sleep."
  (     ) 5. Instead of saying "My parents are away."  to the     strangers,
  E. I should make a safety check of the
electrical appliances.
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