Hong Kong is one of the most densely populated (人口密集的)cities in the world, but with night skies around
1,000 times brighter than globally accepted levels, it gains a bad reputation
for its light pollution.
A study by Hong Kong University found
that brightness levels in the southern Chinese city's popular shopping district
of Tsim Sha Tsui were 1,200 times greater than the international dark sky
standard.
The crowded city of 7 million residents(居民), full or residential high-rises, towering office
blocks and neon(霓虹燈) advertisements, has no laws to control
outdoor lightning.
The result is that light pollution is thought to be
much worse than in other large cities, including London, Sydney, Tokyo and
Shanghai.
“In Hong Kong , you can’t go anywhere outdoor in the
evening without your eyes being blinded by this really disturbing outdoor
lightning,” the light pollution survey’s head Jason Pum told AFP.
“The fact that we have all this light in the sky means
energy is wasted,” he said, adding that too much artificial lightning also
affects nightly wildlife.
Research has suggested that light pollution can cause
a number of harmful health effects in humans, including sleeplessness and
headaches and can also interrupt body clocks and hormones(荷爾蒙).
The university survey, the result of five million
measurements taken from points across the city, was released just days before
the start of the annual Earth Hour event, organized by the World Wildlife Fund.
People around the world will be encouraged to turn off
the lights for an hour on Saturday night to raise awareness of climate change.
Last year, a number of Hong Kong’s major buildings along Victoria Harbour went
dark to mark Earth Hour.
“Anyway, we should do our best to reduce the amount of
lightning and adjust it for the benefit of the environment.”
1.If you walk out at night in Hong Kong, you can see
all those things except ______.
A. neon
advertisements B.
residential buildings
C. a dark sky with twinkling stars D.
high office blocks
2..which of the following statements about too much
lightning is NOT true?
A. Too much lightning means a waste of energy.
B. It can make the sky and the city more beautiful.
C. It may have a bad effect on nightly wildlife.
D. It can lead to some health problems.
3..We can know from the passage that__________
A. light pollution in Hong Kong is among world’s
worst.
B. light pollution is the biggest problem in Hong
Kong.
C. Earth Hour is simply organized to reduce pollution.
D. light pollution is the primary causes of
sleeplessness.
4..what will the author probably discuss after the
last paragraph?
A. Bad effects of light pollution
B. Causes of light pollution
C. Worries about light pollution
D. Ways to reduce light pollution