2011年职称英语考试理工类C级模拟(9)

2011年职称英语考试理工类C级模拟(9)

31 On a clear night.people can see

A 150 stars

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B hundreds of stars #

C one thousand stars

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D more than 14,000 stars

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32 Light pollution occurs when

A artificial lights illuminate the night sky

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B the moon lights up the night sky

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C too many stars are visible in the night sky.

D streetlights are turned off #

33 Nowadays even suburbs are becoming unsuitable for scientists to do their jobs

because

#

A the night sky there is too dark #

B the once dark areas are also polluted by fights. #

C these areas are not polluted by chemicals #

D these areas are less developed #

34 How does light pollution affect wildlife? #

A Animals may go off course

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B It helps migrating birds find their homes #

C Animals are afraid to go out after sunset #

D It helps birds fall asleep #

35 The title“Light Night，Dark Stars”means

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A the night sky is brightly lit up and stars are black

B lights appear at night and stars are seen in the dark #

C city lights at night illuminate stars in the sky #

D city lights illuminate the night sky.making stars invisible

#