(   )56. Many children like mobile phones because the think mobile phones are       .

  Ａ. cool         Ｂ. small      Ｃ. cheap      Ｄ. their toys

(   )57. Many of the mobile phone users in the U. S.  are        .

  Ａ. girls          Ｂ. boys       Ｃ. scientists   Ｄ. children

(   )58. Which o f the following sentences is TRUE?

  Ａ. All scientists think mobile phones are bad to users.

  Ｂ. Some scientists think mobile phones are bad to user.

  Ｃ. Mobile phones are only good to adults(成年人).

  Ｄ. Mobile phones are only bad to children. 

(   )59. The underlined word “threaten” in the passage means       .

  Ａ. 威胁    Ｂ. 担心    Ｃ. 治疗    Ｄ. 证实

(   )60. To protect themselves from mobile phone radiation, people should        .

  Ａ. make longer calls               Ｂ. use a headset

  Ｃ. make shorter calls               Ｄ. both B and C

参考答案56—60  ADBAD