阅读理解。Asthepopulationoftheplanetincreasessodoesthenumberofhomesbusinessesparkinglotsschoolsairportsandroadways.Allthesestructuresuseelectricityandneedtobelighted.Humansdemandtheselights.Th

　　阅读理解。

　　Asthepopulationoftheplanetincreasessodoesthenumberofhomesbusinessesparkinglotsschools

　　airportsandroadways.Allthesestructuresuseelectricityandneedtobelighted.Humansdemandtheselights.

　　Theywanttheirhomesmorecomfortableandtheywanttheirstreetssage.Theproblemisthatresearchersare

　　findingthatallthelightishavinganegativeeffectonhumansandwildlifeaswell.

　　Lessthan10yearsagoIdrovetoathinlypopulatedsectionofmytownlaydowninthemiddleoftheroad

　　andwatchedanattractedmeteorshower(流星雨).Theareawasshortofhomesstreetlightsandtraffic.IfI

　　didthattodayIwouldn'tbeabletoseethemeteorshoweraswellandIwouldsurelyberunoverbyacar.

　　Nowadaysscientistsarefindinglightpollutioncanbealmostasbadascarbondioxidepollution.Ifyou've

　　evertakenaflightatnighttheviewisbeautifulbutyoumustrememberthatallthelightyouseeiswasted

　　electricity.Thecrewofthespaceshuttlesseeanevenbiggerpictureofhowextensivethewastedelectricity

　　isworldwide.

　　Additionallyelectricityneedstobegeneratedandthegenerationofelectricitycreatespollutionbygiving

　　offgreenhousegases.Thisaffectstheairwebreatheandourqualityoflife.

　　Scientistsarealsostudyingtheeffectsoflightpollutiononwildlife.Thousandsofbirdsdieeachyearwhen

　　theycrashintohighlylightedbuildingsastheybecomepuzzledbythelight.Ithasbeenlongknownthattiny

　　seaturtlehatchlingsbecomelostandfollowlightsontheshoreinsteadofheadingtowardsthesea.

　　Fortunatelylightpollutionisoneoftheeasiestsourcesofpollutionthatcanbecorrectedwithoutanegative

　　effect.FollowingsomeguidelinesandalittlesearchingonGooglecangiveyoumanyideasonhowtoreduce

　　yourcontributiontolightpollution.

　　1.Theauthortellsthestoryinthesecondparagraphmainlyto_____.

　　A.rememberthepastbeautyofthetown.

　　B.stresstheadvantagesoflesspollution

　　C.showthegreatchangesofthetown

　　D.provethebadeffectsoflightpollution

　　2.Inthepassagetheauthor