3.Last night's meteor(流星) shower left many people in the community dissatisfied and demanding answers.According to Gabe Rothsclild,Emerald Valley's mayor,people gathered in the suburbs of the city,carrying heavy telescopes,expecting to watch the brightly burning meteors passing through the sky.What they found instead was a sky so brightened by the city's lights that it darkened the light of the meteors passing overhead.
"My family was so frustrated,"admitted town resident Duane Cosby,"We wanted to make this an unforgettable family outing,but it turned out to be a huge disappointments."
Astronomers-scientists who study stars and planets--have been complaining about this problem for decades.They say that light pollution prevents them from seeing objects in the sky that they could see quite easily in the past.They call on people and the government to take measures to fight against it.
There is yet a population besides professional and amateur star observers that suffers even more from light pollution.This population consists of birds,bats frogs,snakes,etc.For example,outdoor lighting severely affects migrating(遷徙的)birds.According to the International Dark-Sky Association."100million birds a year throughout North America die in crashes with lighted buildings and towers."
Countless more animals casualties(傷亡)result from the use of artificial lighting.Clearly,people enjoy the benefits of lighting their evenings,but some scientists think it can be harmful for humans,too.They worry that exposure to light while sleeping can increase person's chances of getting cancer.
Emerald Valley is only one community that is becoming aware of the negative effects of hight pollution.For years,F(xiàn)lagstaff,Arizona,has enforced lighting regulations in its city in order to assist astronomers at the Lowell Observatory.Similar efforts have been made worldwide,and a movement is underway to remind us to turn off lights when we are not using them,so that other creatures can share the night.
41.It happened last night thatA
A.the city's lights affected the meteor watching B.the meteors flew past before being noticed
C.the city light show attracted many people D.the meteor watching ended up a social outing
42.What do the astronomers complain about?C
A.Meteor showers occur less often than before
B.Their observation equipment is in poor repair
C.Light pollution has remained unsolved for years
D.Their eyesight is failing due to artificial lighting
43.What the author concerned about according to Paragraph 4?D
A.Birds may take other migration paths
B.Animal'living habits may change suddenly
C.Varieties of animals will become sharply reduced
D.Animals'survival is threatened by outdoor lighting
44.Lighting regulations in Flagstaff,Arizona are put into effect toB
A.Lessen the chance of getting cancer
B.create an ideal observation condition
C.ensure citizens a good sleep at night
D.enable all creatures to live in harmony
45.What message does the author most want to give us?C
A.Saving wildlife is saving ourselves
B.Great efforts should be made to save energy
C.Human activities should be environmentally friendly
D.New equipment should be introduced for space study.
分析 本文是一篇議論文,文章是由一個(gè)事例進(jìn)而引發(fā)出要討論的話題.作者在文章中表示許多人想在晚上看流星雨,但結(jié)果由于光線太亮,而影響了他們的觀看效果,由此引發(fā)了人們對(duì)光污染的思考.
解答 41.A 推理判斷題.根據(jù)題干關(guān)鍵詞last night快速定位第一段.根據(jù)a sky so brightened by the city's lights that it darkened the light of the meteors passing overhead可知"城市的夜空被燈點(diǎn)綴的是如此明亮以至于頭上飛過的流星的光亮暗淡了,因此影響了人們觀星".故選A.
42.C 推理判斷題.根據(jù)題干關(guān)鍵詞astronomers快速定位第三段.根據(jù)they say that light pollution prevents them from seeing objects …they could see quite easily in the past.可以推斷光污染問題一直沒有得到解決,這才是他們所抱怨的.故選C.
43.D 推理判斷題.根據(jù)題干快速定位第四段.根據(jù)There is yet a population besides professional and amateur star observers that suffers even more from light pollution.可知講述了燈光污染對(duì)鳥類、蝙蝠、青蛙、蛇等動(dòng)物的影響,尤其是其嚴(yán)重影響了鳥類的遷徙,因此可知講述的是動(dòng)物的生存受到戶外燈光的影響,故選D.
44.B 推理判斷題.由題干中的大寫Flagstaff,Arizona可快速定位文章最后一段,根據(jù)Flagstaff,Arizona,has enforced lighting regulations in its city in order to assist astronomers at the Lowell Observatory可知推行此規(guī)定的目的是為了讓天文學(xué)家能更好的觀察.故選B.
45.C 寫作意圖題.文章主要講的是燈光污染給人類和其它生物帶來的影響,而燈光的直接造成原因就是人類本身,因此作者寫本文主要是要告知人們?nèi)祟惖幕顒?dòng)應(yīng)該要注意環(huán)保,減少光污染.故選C.
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