Unit10secondperiod课件
日期：2010-10-18 10:06
orwhereitisdifficulttofindfood?Theyneedwater，Unit10THEWORLDAROUNDUS（THESECONDPERIOD）Discussthesequestionswithyourpartner1Howdoplantsandanimalslivetogether?Plantsandanimalscan’tbeseparatedThethingsaplantorananimalthrowsawaywillbecomefoodforanotherTheycan’tlivewithouteachother2Whatdohumanbeingsneedtosurvive?Weneedair，amewspeciesistoostrongorusestoomuchoftheresourcesinthehabitatThird，thesunaswellasplantsandanimals3Whatdoplantsandanimalsneedtosurvive?4Whatdoanimalsdotosurviveinplaceswhereitisveryhotorcold，wherethereisn’tmuchwater，thesunandtheyalsoneedahabitatorhomewherethere’senoughfoodandotherresourcesTheyhavetoadapttothesituationsorfindanewhomeAnswerthefollowingquestions1Whydoanimalsandplantsbecomeendangered?2Aspeciescanbecomeendangeredwhenitshabitatischangedordestroyedorcausechangesinahabitat?TheybecomeendangeredforthreereasonsFirst，air，water，theycan’tadapttothechangedhabitatsnorfindnewonesSecond，humansor，
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