更新时间：2018-07-29 16:42作者：王新老师
A.FromIndiatoAustralia.
B.LivinginaaNewCountry.
C.TurningTrashtoTreasure.
D.InSearchofNewFriends.
B
SincethefirstEarthDayin1970,Americanhavegottenalot“greenter”towardtheenvironment.“Wedidn’tknowatthattimethereevenwasanenvironment,letalonethattherewasaproblemwithit,”saysBruceAnderson,PsidentofEarthDayUSA.
Butwhatbeganasnothingimportantinpublicaffairshasgrownintoasocialmovement.Businesspeople,politicalleaders,universityprofessors,andespeciallymillionsofgrass-rootsAmericansaretakingpartinthemovement.“Theunderstandinghasincreasedmany,manytimes,”saysGaylordNelson,thefromergovermorfromWisconsin,whothoughtupthefirstAccordingtoUSgovernmentreports,emissions(排放)fromcarsandtruckshavedroppedfrom10.3milliontonsayearto5.5tons.ThenumberofcitiesproducingCObeyondthestandardhasbeenreducedfrom40to9.Althoughseriousproblemsstillremainandneedtobedealtwith,theworldisasaferandhealthierplace.Akindof“Greenthinking”hasbecomepartofpractices.
Greatimprovementhasbeenachieved.In1988therewereonly600recyclingprograms,;todayin1995thereareabout6,600.Advancedlights,motors,andbuildingdesignshavehelpedsavealotofenergyandthereforePventedpollution.