温带森林 讲稿

温带森林 讲稿

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时间:2019-06-13

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1、简介:FOUR-SEASONFORESTSTemperateforestsgrowbetweenthetropicsandthepolarregionsinboththeNorthernandSouthernHemispheres.Theyhavefourdistinctseasonswithawell-definedwinter.Temperateforestshaveamoderateclimate.Theyarehometomanyplantandanimalspecies.Muchoft

2、hefoodhumanseatisgrowninareaswheretemperateforestshavebeenclearedandfarmsnowexist.Ifyoudon’tliveinthetropics,chancesareatemperateforestoncewasgrowingwhereyouarerightnow.Temperateforestsarealsowheremanyofourfavoritefoodsfirstcamefrom.Walnuts,apples,mu

3、shrooms,andmaplesugarareallfoodsofthetemperateforest.动物:Manyoftheanimalspeciesweknowandrecognizeliveintemperateforests.InAustralia,koalas,possums,wallabies,wombats,kookaburras,andmanysmallmarsupialsdependontheforest.InEurope,boars,badgers,squirrels,a

4、ndsongbirdsliveintemperateforests.InCanadaandtheUnitedStates,deer,bears,mountainlions,bobcats,rabbits,woodpeckers,andmanysmallerbirdsmakethetemperateforesttheirhome.InChina,endangeredspeciessuchasgiantpandasandredpandassurviveinthetemperateforest.Wil

5、dlifeintemperateforestsisnotalwayseasytosee.Manyspecieshavemarkingsorcoloringthatcamouflagesthem.Othersarenocturnal,thatis,theyaremostactiveatnight.Owls,bats,possums,andmanywildcatsarenocturnal.食物网:foodwed四季:ADifferentLookEachSeasonSeasonschangethelo

6、okoftemperateforestseveryfewmonths.Thefourseasonsarewinter,spring,summer,andfall.Winter-Forestsmaylookratherlifelessduringthistime,especiallyiftheforestismadeupmainlyofdeciduoustrees.Mostwildlifehidesfromthecoldorfliesfarawaytowarmerplaces.Manytemper

7、ateforestsareblanketedinsnowformuchofthewinter.Spring–Daysbegintolengthenandgetwarmer.Wildlifeslowlyreturnsandnewleafandflowerbudsappearondeciduoustrees.Insectshatchandbecomefoodformanyreturningbirdsandawakeningrodentsandreptiles.Summer–Theforestisgr

8、eenandfoodisplentiful.Woodlandanimalshavebabies.Theforestisawakeandbusyduringthedayandnight.Fall–Asdaylightshortensandtemperaturesfall,deciduoustreesreducetheamountofgreenchlorophyllintheirleaves.Theleavesturnorange,yellow,red,andbrown.Fallingleavesc

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