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1、动物的呼吸作用Animal RespirationMAGIC EXPERIMENTWhat made the limewater become cloudy？Carbon dioxide.What did this experiment show?Exhaled air contains much more carbon dioxide.ANIMAL RESPIRATION有机物（有机物（有机物（有机物（储能储能储能储能）+氧气氧气氧气氧气能量能量能量能量+二氧化碳二氧化碳二氧化碳二氧化碳水水水水线粒体线粒体线粒体线粒体organic(storedenergy)+oxygenenergy+ca
2、rbondioxidewatermitochondria呼呼吸吸系系统统鼻咽气管 肺支气管呼吸道 12345喉6Respiratory systemNosePharynxLarynx/throatTrachea/windpipeBronchia/bronchusLungv鼻鼻v咽咽v喉喉v气管气管v支气管支气管v肺肺呼呼吸吸系系统统鼻咽气管 肺支气管呼吸道 12345喉6A poor couple gave birth to a baby, but the baby died soon. When the police asked, the couple said that the baby
3、was a stillbirth(死婴). But the doctor found that the babys lung tissue could float above the water when it was put into water. Several diving enthusiasts went to dive together. unfortunately, one of them-John died. The Policemen checked his oxygen barrel(氧气筒) and discovered that there was still lots
4、of pure oxygen left, while theres only little air left in the others barrel. So the police said: “John was murdered, and the murderers among the rest of you.”Whats the difference between their nose?安安南南施施罗罗德德前面观前面观后面观后面观咽咽气管和食道的共同的开口处会会厌厌软软骨骨会厌软骨会厌软骨灵巧的开关会会厌厌软软骨骨气气管管食食道道胸廓胸廓肺之家膈右侧的胸腔右侧的胸腔左侧的胸腔左侧的胸腔胸廓胸廓肺之家肋骨胸骨脊柱胸廓胸廓包围着肺肺肺气体交换的场所支气管支气管毛细血管毛细血管肺泡肺泡呼吸道对空气处理的三重功效清洁清洁温暖温暖湿润湿润
