百团大战电影观后感200字

抗日战争初期，冀中白洋淀地区中共党员黑老蔡发动农民组织抗日自卫队，青年农民牛大水积极参加。他们组织起了雁翎队活跃在白洋淀，机智勇敢打击了日本鬼子的嚣张气焰。 黑老蔡的小姨杨小梅不堪丈夫张金龙的虐待，逃至姐夫处投身革命，被安排在县训练班，与同在一起学习的牛大水相处甚好。张金龙在小梅争取下，先是勉强顺从抗日，而后旧习不改，投汉奸何世雄。小梅因此与张脱离关系。在反“扫荡”战斗中，牛大水与杨小梅被俘，小梅带伤逃脱。牛大水为救护民兵高屯儿，被何世雄、张金龙百般折磨。高屯儿脱险后因俘获何世雄之子，便将其作人质换回牛大水。 牛大水和杨小梅因养伤又相聚一起，两人感情倍增，伤愈后，他们在老蔡领导下投入战斗。后牛大水带领抗日自卫队活捉了汉奸何世雄和张金龙。。NOVA: Mysteries of Sleep Like virtually every other animal, humans need sleep to survive. But why? What do we gain from spending nearly a third of our lives in such a defenseless state? And what's at stake if we sleep poorly? The functions of sleep have long been something of a mystery. But now scientists are peering deep into the brain to see what happens while we snooze. One ...。