2013年职称英语理工类B级阅读理解练习18_第2页

　　36. When can people see 14,000 stars?
　　A When they have a fairly good telescope.
　　B When they are in a large city.

　　C When the night sky is clear of clouds, moonlight and artificial lights.
　　D When the night sky is without haze and fog.
　　37. Which of the following statements is NOT related to light pollution?
　　A A haze of light is formed from artificial lights such as streetlights and building lights.
　　B Lights from different sources in the city stream into space and illuminate the night sky.
　　C The night sky is illuminated by the lights from big glowing cities in the night.
　　D Stargazing becomes difficult because there is a layer of haze in the air.
　　38. Does the writer think growing cities affect astronomers' work? Why does he think so?
　　A Yes. Because the once dark rural areas are polluted by lights.
　　B No. Because they can still see stars in rural areas.
　　C Yes. Because rural areas are not a good place for astronomers to study stars.
　　D No. Because faint light given off by stars can still be seen on a clear night.
　　39. How does light pollution affect wildlife.9 Which of the following is NOT correct?
　　A Animals may go off course due to the attraction of artificial lights.
　　B Animals might be attracted by artificial lights to go into cities.
　　C Artificial lights at night may make migrating birds lose their way.
　　D Attracted by artificial lights, birds fly into lighted buildings.
　　40. Which of the following is closest in meaning to the title "Light Night, Dark Stars" ?
　　A The night sky is light colored and stars are black　　B Lights appear at night and stars are seen in the dark.
　　C City lights illuminate the night sky and make stars invisible.
　　D City lights at night illuminate stars in the sky.