旁白：OnedaySamanthaCandyandJujoareplaningfortheirSummerholiday.

　　a:Wherewouldyouliketogo?

　　b:Iwanttoswim.

　　c:ButIcan'tswimanditistoocrowdedthere.soIdon'twanttogothere．ＨowaboutgoingtoBeijing?

　　a:CanBeijingofferusalotoffun?

　　c:Yes.WecanvisitalotoflandmarksinBeijing,suchastheSummerPalaceandtheTian'anMenSquare.Theyareallbeautiful.

　　b:Ok,let'sgotoBeijingforourSummerholiday.

　　旁白:InSummerholiday,Samantha,CandyandJujowerevisitingBeijingtogether.TheyvisitedtheSummerPalace,theGreatWallandtheTian'anMenSquare.Buttheyweren'thappy.BecausetheythoughttheairinBeijingwasn'tcleanandtheairpollutionwasnotgoodfortheirheath.Oneweeklater,theycameback.)

　　a:Oh!TheairinBeijingisverydirty.It'sbadforourheath.

　　b:Yes.That'sairpollution.Howcanwecleantheair.

　　c:Wecanplantmoretrees.

　　a:Why?

　　b:Oh!Iknow.Thetreestakeharmfulgasfromtheairandreleaseoxygenintotheair.Theycanlelpustocleantheair.

　　c:Yes.That'strue.Treesareuseful.Theyanmakestreetsmorebeautifulandlessnoisy.Andthefruitandthenutsforcola,andthebeasforthecoffeealllcomefromtrees.

　　a:Wow.Thetreesaregreat.Arethewoodinourpencilandpaperinournotebooksallfromtrees?

　　b,c:Yes,theyareallfromtrees.

　　a:Treesarereallyuseful.Whydon'tweplantalotoftreesinourcity.Andtheairinourcitywillbecomecleanorourcitywillalsobecomemorebeautiful.

　　b:That'sagoodidea.Let'sgoandplantsometreesnow.

　　a,c:Ok,let'sgo.

　　旁白：SamanthaCandyandJujoareplantingtreesintheircity.Theircitiesbecomemorebeautiful.Wecanalsoplanttreesinourcity.That'sgoodforourheath.Andtheairinourcitywillbecomecleaner.

　　TheEnd.