Lastnight’smeteor(流星)showerlef-查字典问答网
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  Lastnight’smeteor(流星)showerleftmanypeopleinthecommunitydissatisfiedanddemandinganswers.AccordingtoGabeRothschild,EmeraldValley’smayor,peoplegatheredinthesuburbsofthecity,carryingheavytelescopes,expecting

  Lastnight’smeteor(流星)showerleftmanypeopleinthecommunitydissatisfiedanddemandinganswers.AccordingtoGabeRothschild,EmeraldValley’smayor,peoplegatheredinthesuburbsofthecity,carryingheavytelescopes,expectingtowatchthebrightlyburningmeteorspassingthroughthesky.Whattheyfoundinsteadwasaskysobrightenedbythecity’slightsthatitdarkenedthelightofthemeteorspassingoverhead.

  “Myfamilywassofrustrated,”admittedtownresidentDuaneCosby,“Wewantedtomakethisanunforgettablefamilyouting,butitturnedouttobeahugedisappointment.”

  Astronomers—scientistswhostudystarsandplanets—havebeencomplainingaboutthisproblemfordecades.Theysaythatlightpollutionpreventsthemfromseeingobjectsintheskythattheycouldseequiteeasilyinthepast.Theycallonpeopleandthegovernmenttotakemeasurestofightagainstit.

  Thereisyetapopulationbesidesprofessionalandamateurstarobserversthatsuffersevenmorefromlightpollution.Thispopulationconsistsofbirds,bats,frogs,snakes,etc.Forexample,outdoorlightingseverelyaffectsmigrating(迁徙的)birds.AccordingtotheInternationalDark-SkyAssociation,“100millionbirdsayearthroughoutNorthAmericadieincrasheswithlightedbuildingsandtowers.”

  Countlessmoreanimalcasualties(伤亡)resultfromtheuseofartificiallighting.Clearly,peopleenjoythebenefitsoflightingtheirevenings.Butsomescientiststhinkitcanbeharmfulforhumans,too.Theyworrythatexposuretolightwhilesleepingcanincreaseaperson’schancesofgettingcancer.

  EmeraldValleyisonlyonecommunitythatisbecomingawareofthenegativeeffectsoflightpollution.Foryears,Flagstaff,Arizona,hasenforcedlightingregulationsinitscityinordertoassistastronomersattheLowellObservatory.Similareffortshavebeenmadeworldwide,andamovementisunderwaytoremindustoturnofflightswhenwearenotusingthem,sothatothercreaturescansharethenight.

  小题1:Ithappenedlastnightthat_____.A.thecity’slightsaffectedthemeteorwatchingB.themeteorsflewpastbeforebeingnoticedC.thecitylightshowattractedmanypeopleD.themeteorwatching

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2020-05-20 16:37
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刘玉林

  小题1:A小题2:C小题3:D小题4:B小题5:C【文章大意】许多人想在晚上看流星雨,结果由于光线太亮,影响了他们的观看效果。由此引发了人们对光污染的思考。本文是一篇议论文,文章由一个事例引发出要讨论...

2020-05-20 16:40:49

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