flying to the sun

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1、Flyingtothesun　　LIGHTSout！Believeitornot，theAmericancityofChicagoisgoingtomakeitslightsweakerforbirds.　　Lastweek，ChicagobecamethefirstcityintheUStojointhe“LightsOut”turningoffthelightsinthecity’stallestbuildings，thousandsofbirdsaremorelikelytoreachtheirwinterhomes.　　Everyyearinautumn，sometypesofbir

2、dsareflyingoverChicagoontheirjourneysouthandreturnthefollowingspring.　　Birdsfindtheirwaybylookingatthestarsintheintallbuildingsaretoobrightforthebirdsandtheycanmistakethemformeanstheydon’tknowwhichwaytogo，andcanhavesadbirdsdiebecausetheygettootiredtofly，andsomeflyintothesparrowsareespeciallyconfuse

3、dbythelights.　　Thismonth，around300speciesofmigratorybirdsareflyingoverChicagotogobacksouthtoescapethecoldwinter.　　Migratorybirdstraveleveryautumnandspringandfollowaspecialroute.　　Birdsmigrateforseveralbirdscannotliveinthecold，sotheyflytowarmerplacesinthethereareotherreasons，needtosearchforwinter，ma

4、nyplantsdieandinsectsitgetcolder，birdsknowit’stimetoflytowarmerplaceswithmoreanotherbirdsliketoreproduceinthesame“house”theyusedlastyear，sotheyflybackthere.　　Therearearound9，000kindsofbirdsintheworld，and600typesaremigratorymigratorybirdsinChinafollowthreefirstoneisthewesternroute，acrosstheQinghai-T

5、ibetPlateautosecondrouteisfromtheTaihangMountaintoSichuanandothersouthernpartsofbirdsflyalongthecoasttoeasternandsouthernChina.　　BIRDScanflyverylongdistanceswhentheyflytootherlongestabirdhasflownis22，000miles.　　HELP　　mistakefor：把……误认作……　　beconfusedby：被……迷惑　　searchfor：寻找　　makeupfor：补偿　　Beforemigrati

6、on，birdsstarttogetgivesthemenergyandwarmthduringthetrip.　　Theyhavetostopduringtheirjourneysbecausetheyneedtorestandmakeupfortheenergylostinarenowfewermigratorybirdsthaneveraremanyreasonsfortheriseinthedeathofthecausesiscollisionswithtallthemainreasonisthattherearenowfewerplacesforbirdstostopandrest

7、.　　Americahaslostmorethanhalfofitswetlands，nearlyallitsprairiesandforests，and75percentofitsshortgrasswereallplaceswherebirdsusedtorest.