62. The word "drawbacks" (Line 1, Para. 2) probably means
    [A] benefits
    [B] interests
    [C] effects
    [D] problems
    63. What can be learned from the third paragraph?
    [A] The study revealed last week causes lots of trouble.
    [B] Indoor lighting costs U.S. more than outdoor lighting.
    [C] The organization where Bob Gent works makes efforts to reduce light pollution.
    [D] The International Dark-Sky Association strongly opposes outdoor lighting service.
    64. What will people in some cities do on March 29 according to the passage?
    [A] They will turn out some lights for an hour.
    [B] They will organize an event to have some fun.
    [C] They will hold a demonstration which will lasts for an hour.
    [D] They will gather together and count how many stars they can see.
    65. Scientists counted the number of stars in order to
    [A] illustrate the impact of light pollution
    [B] compare air quality in different areas
    [C] see how the sky has changed with time
    [D] arouse public interest in space
    66. What disadvantages do people have if working at night?
    [A] They lose the chance to gaze stars.
    [B] They have a higher risk of health problem.
    [C] They have less exposure to white light.
    [D] They are to blame for light pollution.
    答案解析