33、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.
本题正确答案为:A
本题解析:答案在第五段中可以找到。随着城市规模的扩大，曾经黑灯瞎火的乡村逐渐变成了市郊，那里的灯火使科学家无法观测到星体发出的微弱光芒。
34、How does light pollution affect wildlife? 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.
本题正确答案为:B
本题解析:第六段最后三句告诉我们人造光源会误导动物而致使它们迷路，但却没有说会将它们引进城市。
35、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.
本题正确答案为:C
本题解析:题目的意思是：城市灯火通明的夜晚使星星失去光泽。
