( 15 minutes)

　　Directions:

　　Read the following text. Choose the best word or phrase for each numbered blank and mark A, B,C, or D on your ANSWER SHEET.

　　It is an unfortunate fact of today's life that most people are growing up unable to see the stars.

　　The prime night sky exists only  26pictures. This is true not only in cities and suburbs, but al-so in  27areas. We have lost our view of the stars and  28our nighttime environment as well.

　　Such a loss29be acceptable if light pollution were the inevitable price of progress, 30it is not. Most sky glow is  31  . It comes mainly from lighting sources that do little to increase32 safety, security or utility. They produce only glare,33over one billion dollars annually in the U.S. alone.

　　34science, the impact has been even more dramatic. Scientists require observations of extremely faint objects that can only be  35  with advanced devices at sites  36of air pollu-tion and urban sky glow. For example, some images of the objects can  37information about faraway comers of the universe, helping us understand the way in  38our world was actually formed.39  , the light from these objects can be lost at the very end of its  40  in the glare of our own sky.

　　Reducing light pollution is not difficult. It  41that public officials and citizens be  42of the problem and act to counter it. As  43people can help reduce sky glow just by  44 lighting only when necessary.

　　The stars above us are a  45heritage. We must do our best to preserve it.

　　26. A. on

　　B. fromC. inD. at "

　　27. A. local

　　B. rural

　　C. industrial

　　D. scenic

　　28. A. mined

　　B. reduced

　　C. dirtied

　　D. wasted

　　29. A. should

　　B. may

　　C.  might

　　D. will

　　30. A. but"

　　B. as

　　C. because

　　D. though

　　31. A. inadequate

　　B. invisible

　　C. unpredictable

　　D. unnecessary

　　32. A. nighttime

　　B. lifetime

　　C. peacetime

　　D. longtime

　　33. A. costing

　　B. making

　　C. putting

　　D. raising

　　34. A. At

　　B. From

　　C. For

　　D. Over

　　35. A. accepted

　　B. made

　　C. pushed

　　D. sent

　　36. A. worthy

　　B. typical

　　C. critical

　　D. free

　　37. A. collect

　　B. offer

　　C. share

　　D. save

　　38. A. that

　　B. what

　　C. when

　　D. which

　　39. A. Besides

　　B. Instead

　　C. Therefore

　　D. Yet

　　40. A. march

　　B. visit

　　C.journey

　　D. flight

　　41. A. indicates

　　B. proves

　　C. requires

　　D. shows

　　42. A. ashamed

　　B. aware

　　C. independent

　　D. tired

　　43. A. individuals

　　B. natives

　　C. residents

　　D. victims

　　44. A. fixing

　　B. providing

　　C. taking

　　D. using

　　45. A. cosfless

　　B. priceless

　　C. valueless

　　D. worthless