Oursurroundingsarebeingpollutedfastandman'spresenteffortscannotpreventit.Timeisbringingusmorepeople,andmorepeoplewillbringusmoreindustry,morecars,largercitiesandthegrowinguseofman-madematerials.

　　Whatcanexplainandsolvethisproblem?ThefactisthatPollutioniscausedbyman--byhisdesireforamodernwayoflife.Wemake"increasingindustrialization"ourchiefaim.Soweareoftenreadytooffereverything:cleanair,purewater,goodfood,ourhealthandthefutureofourchildren.Thereisaconstantflowofpeoplefromthecountrysideintothecities,eagerforthebenefitsofourmodernsociety.Butasourtechnologicalachievementshavegrowninthelasttwenty

　　years,Pollutionhasbecomeaseriousproblem.

　　Isn'tittimewestoppedtoaskourselveswherewearegoing--andwhy?Itmakesonethinkofthestoryabouttheairlinepilotwhotoldhispassengersovertheloudspeaker,"I'vesomegoodnewsandsomebadnews.Thegoodnewsisthatwe'remakingrapidprogressat530milesperhour.The

　　badnewsisthatwe'relostanddon'tknowwherewe'regoing."Thesadfactisthatthisbecomesatruestorywhenspeakingofourmodernsociety.希望能帮到你,谢谢