2020年7月四级组合卷

Questions 22 to 25 are based on the passage you have just heard.

Directions:In this section, you will hear three passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.
    22.
  • A By recording the time people spend on TV.
  • B By tracking people's living habits.
  • C By using memory and fluency tests.
  • D By scanning people's brains.
    23.
  • A watching television for hours.
  • B Playing video games.
  • C Reading books and magazines.
  • D Surfing the Internet.
    24.
  • A Television viewing may be a potential factor for Alzheimer's disease.
  • B Alzheimer's patients tend to watch television more than 3 hours a day.
  • C Some research has confirmed the link between them.
  • D Television watching is beneficial to Alzheimer's patients.
    25.
  • A watch television no more than 3 hours each day.
  • B Balance television viewing with other contrasting activities.
  • C watch some educational TV programs.
  • D Take more physical exercise.