22.IfyoutravelbyairacrossthecenterofAfricaorSouthAmerica,youflyoverforestsforthousandsofkilometers.Thesegreatforestsaretheoceansoftrees.Therearethousandsandthousandsofdifferentkindsofplantsandanimals.However,thew

　　22.IfyoutravelbyairacrossthecenterofAfricaorSouthAmerica,youflyoverforestsforthousandsofkilometers.Thesegreatforestsaretheoceansoftrees.Therearethousandsandthousandsofdifferentkindsofplantsandanimals.

　　However,theworld'sforestsaregettingsmallerallthetime.Wearecuttingdownthetreesbecauseweneedwood,andweneedmorefarmland.Somepeoplesaythattherewillnotbeanyforestslikethesein20or30years.Whatwillhappeniftheydisappear?

　　Ifwecutdownourforests,alotofplantsandanimalswilldisappearfromtheworld.Inalotofplacesthenewfarmlandwillsoonlookliketheolddeserts.Cropswillnotgrowthere.Itwillnotrainveryoften,andtheweatherwillgetveryhot.Perhapstheclimateoftheworldwillchange.Thiswillbedangerousforeveryoneintheworld.Thatiswhywemusttakecareofourforests.1.Thepassagemainlytellsusabouttheimportanceoftakingcareofplants. A:TB:F2.Forestsarehomesfordifferentkindsofanimals. A:TB:F3.Theneedformorewoodandmorelandhelptoprotectourforests. A:TB:F4.We'llhavemoreandgreaterforestsnin20or30yearsinsomepeople'sview. A:TB:F5.Thewriterthinksitnecessarytoprotecttheforests. A:TB:F