夏天的虫子 文档

小虫的夏天之旅(幼儿园) 字号:大 小 编辑: 更新时间:2010-05-11 09:57 引言:小昆虫开始它的夏天之旅了，小昆虫将行李背起，将水杯拿起，拍打着自己的小小翅膀出发了，大家一起欢送了小昆虫，祝它一路顺风～通过本次锻炼幼儿对昆虫的保护，培养幼儿对大自然的兴趣爱好与勇于探索的精神。 教案名称:小虫的夏天之旅() 教学目标: 让学生感受千姿百态的昆虫世界，增长对昆虫种类、特性、习性等方面的自然常识，知道苍蝇、蚊子的危害和消灭蚊蝇的方法，培养学生热爱自然、热爱科学、喜欢探索大自然的情趣。 重点难点: 1、培养学生热爱自然、热爱科学、喜欢探索大自然的情趣。 2、了解昆虫的基本常识，感受昆虫世界的情趣。 3、知道苍蝇、蚊子的危害和消灭蚊蝇的方法。 教学准备: 1、多媒体，昆虫图片; 2、课前布置学生同父母一起捕捉昆虫，带入课堂。 教学过程: 一、导入新课，激情蕴趣 师:(动画)小朋友们,夏姑娘来了，天气热了，活泼可爱的小昆虫都出来了，你捉过昆虫吗, 生:我捉过蝴蝶。 生:我捉过蟋蟀。 生:我捉过小蜻蜓。 师:小朋友们捉过的昆虫可真多，你还想认识更多的昆虫朋友吗, 生:(大声)想～ 师:今天我们就一起来学习《夏天的小虫》(板贴课题) 二、活动过程 活动:学昆虫 师:小朋友们，让我们一起到郊外去走一走(听音乐《郊外》，拍手唱歌)看，郊外的昆虫真多啊～ (请小朋友自由说说，相机点击图片) 师:(图片定格)那你知道这些小昆虫会怎么动吗, in southwest of Zhejiang Provincial Committee of the party's struggle, develop democratic United Front against Japan, established the armed forces and the anti-Japanese base area, decided to establish the CPC Zhejiang Committee. In February 1939, with Gu Yuliang, Secretary Zhu, as Minister, Jie Xu into a propaganda Minister, Zhang Zhihua as women's Minister, Huang yan as youth Minister, zhexi recorder of Penrhyn as military Secretary of the establishment. Hanchang organization attached to the recorders of the West. After the Spring Festival, Zhu Xi was determined to rally, led by Wang Hesong more than more than 100 people, with "first Road South into the team headquarters the name of" back from Wuzhen to Wujiang yan ... Is month, established the Tomb area 1th branch-East water Hong Kong Branch, Branch Secretary Shen Yingjie. Is autumn, the Kuomintang Zhejiang Provincial Government in Southwest Bureau to intensify its anti-communist, ordered political team training in tianmu mountain, is intended to eliminate in the political power of the Communist Party, thorough restructuring of the province's political team to make it become a tool of anti-Communist. In view of this situation, recorder of the West direction West open mass work has been difficult, political signs should not be used, only all go underground, the party's work to continue. To do this, take appropriate measures by a party organization, party members in the Organization of political withdrawal, transfer or make public career as cover, into a secret struggle. In November, Yang and the victory of the battle of the 生:有的昆虫会飞的，像蝴蝶、蜻蜓。 师:你能给大家学一学蝴蝶是怎样飞的吗, 生:(一人)学飞，大部分小朋友跃跃欲试。 师:想学的小朋友一起来飞一飞吧～ 师:昆虫除了飞，还会怎么动呀, 生:有的昆虫是爬的，像蚂蚁、蟑螂。 师:谁来做做动作, 生:(自告奋勇)学蚂蚁爬。 生:还有的昆虫会跳的。 师:你能学给大家看一看吗, 生:学蟋蟀跳。 师:那你知道小昆虫会叫吗, 生:(大声)会～ 师:你知道谁会叫呀,你能学一学吗, 生:学蚊子叫。 生:学蜜蜂叫。 师:小朋友学的真像，听了你们的叫声，有几只小昆虫也熬不住了，你们猜猜看，到底是谁来了呢, 蚊子主要危害是传播疾病。据研究，蚊子传播的疾病达80多种之多。在地球上，再没有哪种昆虫比蚊子对人类有更大的危害了。 世界上的蚊子有2千多种，我国约有140多种。能传播疾病的蚊子可分三类:一类叫按蚊，俗名疟蚊，主要传播疟疾。另一类叫库蚊，主要传播丝虫病和流行性乙型脑炎。第三类叫伊蚊，身上有黑白斑纹，又叫黑斑蚊，主要传播流行性乙型脑炎和登革热。 消灭蚊子，是预防减少疾病的有效途径。人人动手，清理河道、垃圾等蚊子容易滋生的地方。现代科技也已有了电蚊香——等灭蚊用品、用具，未来我们应发明新一代的灭蚊器具以用来消灭蚊子，预防蚊子传播疾病、危害人类。 (1)传播疾病，蝇类能机械性携带、传递的病原体甚多，主要是肠道传染病，如痢疾、伤寒、脊髓灰质类等的病原体，还有雅司、砂眼、结核病等的病原体，最近已有报道从传染病医院等地采获的家蝇、大头金蝇、丝光绿蝇的组织匀浆沉淀物中检测出乙型肝炎面抗原(HbsAg)。 (2)蝇类幼期寄生于人、畜活体组织或肠道的蝇蛆症，危害也很大，特别是对畜牧业。按寄生的不同种类、不同部位、不同程度可区分各类蝇蛆症。再其次是骚扰吸血，吸血蝇主要是对家畜的危害，吸血骚扰可使产肉量和产奶量大幅度下降，给畜牧业带来损失医学教育in southwest of Zhejiang Provincial Committee of the party's struggle, develop democratic United Front against Japan, established the armed forces and the anti-Japanese base area, decided to establish the CPC Zhejiang Committee. In February 1939, with Gu Yuliang, Secretary Zhu, as Minister, Jie Xu into a propaganda Minister, Zhang Zhihua as women's Minister, Huang yan as youth Minister, zhexi recorder of Penrhyn as military Secretary of the establishment. Hanchang organization attached to the recorders of the West. After the Spring Festival, Zhu Xi was determined to rally, led by Wang Hesong more than more than 100 people, with "first Road South into the team headquarters the name of" back from Wuzhen to Wujiang yan ... Is month, established the Tomb area 1th branch-East water Hong Kong Branch, Branch Secretary Shen Yingjie. Is autumn, the Kuomintang Zhejiang Provincial Government in Southwest Bureau to intensify its anti-communist, ordered political team training in tianmu mountain, is intended to eliminate in the political power of the Communist Party, thorough restructuring of the province's political team to make it become a tool of anti-Communist. In view of this situation, recorder of the West direction West open mass work has been difficult, political signs should not be used, only all go underground, the party's work to continue. To do this, take appropriate measures by a party organization, party members in the Organization of political withdrawal, transfer or make public career as cover, into a secret struggle. In November, Yang and the victory of the battle of the `网搜集整理。 一、及时补充水分但应少喝饮料。果汁、可乐、雪碧、汽水等饮料中,含有较多的糖精和电解质,喝多了会对胃肠产生不良刺激,影响消化和食欲。因此,夏季应多喝白开水或淡盐(糖)开水。 二、口渴后不宜狂饮。劳动和运动大量出汗后,不宜大量饮用白水,应适当补充些淡盐(糖)水,因为大量出汗后使人体内盐分丢失过多,约占汗液的0(5,左右,不及时补充盐分,则使体内水、盐比例严重失调,导致代谢紊乱。 三、太阳短波辐射最强烈的时间是10时-15时左右,应尽量避开这段时间外出,非出去不可,应在皮肤上涂些防晒护肤品, 夏季衣着以浅色为好。 而湿热过盛又是诱发四、不宜过量饮酒。人体在夏季受气温影响极易积蕴湿热, 皮肤发生疮痈肿毒的病因,若大量饮白酒,更会助热生湿,无异于火上浇油。 五、饮食不宜过于清淡。夏天人的活动时间长,出汗多,消耗大,应适当多吃鸡、鸭、瘦肉、鱼类、蛋类等营养食品,以满足人体的代谢需要。 六、午睡时间不宜过长。午睡时间过长,中枢神经会加深抑制,脑内血流量相对减少会减慢代谢过程,导致醒来后周身不舒服而更加困倦。 七、忌受热后“快速冷却”。炎夏,人们外出或劳动归来,喜欢不是开足电扇,就是立即去洗冷水澡,这样会使全身毛孔快速闭合,体内热量反而难以散发,还会因脑部血管迅速收缩而引起大脑供血不足,使人头晕目眩。 八、空调室内外温差不宜太大。使用空调室内外温差不超过5度为宜,即使天气再热,空调室内温度也不宜到24度以下。 in southwest of Zhejiang Provincial Committee of the party's struggle, develop democratic United Front against Japan, established the armed forces and the anti-Japanese base area, decided to establish the CPC Zhejiang Committee. In February 1939, with Gu Yuliang, Secretary Zhu, as Minister, Jie Xu into a propaganda Minister, Zhang Zhihua as women's Minister, Huang yan as youth Minister, zhexi recorder of Penrhyn as military Secretary of the establishment. Hanchang organization attached to the recorders of the West. After the Spring Festival, Zhu Xi was determined to rally, led by Wang Hesong more than more than 100 people, with "first Road South into the team headquarters the name of" back from Wuzhen to Wujiang yan ... Is month, established the Tomb area 1th branch-East water Hong Kong Branch, Branch Secretary Shen Yingjie. Is autumn, the Kuomintang Zhejiang Provincial Government in Southwest Bureau to intensify its anti-communist, ordered political team training in tianmu mountain, is intended to eliminate in the political power of the Communist Party, thorough restructuring of the province's political team to make it become a tool of anti-Communist. In view of this situation, recorder of the West direction West open mass work has been difficult, political signs should not be used, only all go underground, the party's work to continue. To do this, take appropriate measures by a party organization, party members in the Organization of political withdrawal, transfer or make public career as cover, into a secret struggle. In November, Yang and the victory of the battle of the 九、不宜佩戴金属首饰。金属装饰品中的某些金属沾上汗水,佩戴时,所接触到的皮肤可能会出现微红或瘙痒等症状,容易引发接触性皮炎 十、8种人易中暑: 1、和普通人相比，一些身体素质较差或有其他疾病的人更容易出现中暑问题，所以在炎热的天气里自己和家人就更要注意。 2、老年人由于皮肤汗腺萎缩和循环系统功能衰退，肌体散热不畅。 3、孕产妇因为怀孕或产后体力消耗大，身体虚弱，如果逗留在通风不良、温度较高的室内，就容易中暑。 4、婴幼儿的各系统发育不够完善，体温调节功能差，皮下脂肪又比较多，对散热不利。 5、炎热天气会使心血管病患者的交感神经兴奋，加重心血管的负荷。尤其是心脏功能不全的，他们体内的热量不能及时散发而积蓄，所以容易中暑。糖尿病患者的机体对内外环境温度变化反应迟钝，虽然热量已经积蓄在体内，但病人的自觉症状却出现得较晚，易引起中暑。 6、患一些感染性疾病的患者，因为细菌或病毒性感染可以使人体产生内源性致热原，让机体产热加速。炎症还能使机体释放出一些物质，使血管痉挛收缩，更不利于散热而容易中暑。 7、营养不良的人因为营养素的缺乏使血压下降，反射性地引起血管的收缩。他们还容易反复腹泻，导致脱水和电解质紊乱而中暑。 in southwest of Zhejiang Provincial Committee of the party's struggle, develop democratic United Front against Japan, established the armed forces and the anti-Japanese base area, decided to establish the CPC Zhejiang Committee. In February 1939, with Gu Yuliang, Secretary Zhu, as Minister, Jie Xu into a propaganda Minister, Zhang Zhihua as women's Minister, Huang yan as youth Minister, zhexi recorder of Penrhyn as military Secretary of the establishment. Hanchang organization attached to the recorders of the West. After the Spring Festival, Zhu Xi was determined to rally, led by Wang Hesong more than more than 100 people, with "first Road South into the team headquarters the name of" back from Wuzhen to Wujiang yan ... Is month, established the Tomb area 1th branch-East water Hong Kong Branch, Branch Secretary Shen Yingjie. Is autumn, the Kuomintang Zhejiang Provincial Government in Southwest Bureau to intensify its anti-communist, ordered political team training in tianmu mountain, is intended to eliminate in the political power of the Communist Party, thorough restructuring of the province's political team to make it become a tool of anti-Communist. In view of this situation, recorder of the West direction West open mass work has been difficult, political signs should not be used, only all go underground, the party's work to continue. To do this, take appropriate measures by a party organization, party members in the Organization of political withdrawal, transfer or make public career as cover, into a secret struggle. In November, Yang and the victory of the battle of the 8、服用抗组织胺药、抗胆碱药、安眠药等的人也会产生血管收缩，使体温调节中枢发生障碍，容易中暑。 十一、多喝淡盐水午后少外出: 此外，年老体弱、孕妇、肥胖及有甲亢、糖尿病、心血管疾病的患者也极易发生中暑。因此，一旦出现头昏眼花、乏力、口干、恶心呕吐、发烧、惊厥、抽搐、无汗、呼吸困难等症状，应马上在阴凉通风处休息片刻或用冷水、冰水湿敷，随后立即到医院就诊，如治疗不及时，容易引起合并症，甚至死亡。 要预防中暑的发生，除了尽量避免在日照最强烈的上午10时至下午2时外出，还应该采取必要的防护措施: ? 保持室内通风，降低室温，室内起码要有电扇通风、降温; ? 高温下工作时间不宜过久，每天尽量不要超过8小时; ? 降低劳动强度，备好防暑降温饮料，尽量多补充淡盐开水或含盐饮料; ? 保证充足睡眠，多吃些营养丰富的水果和蔬菜。 ? 尽量穿透气、散热的棉质衣服。 in southwest of Zhejiang Provincial Committee of the party's struggle, develop democratic United Front against Japan, established the armed forces and the anti-Japanese base area, decided to establish the CPC Zhejiang Committee. In February 1939, with Gu Yuliang, Secretary Zhu, as Minister, Jie Xu into a propaganda Minister, Zhang Zhihua as women's Minister, Huang yan as youth Minister, zhexi recorder of Penrhyn as military Secretary of the establishment. Hanchang organization attached to the recorders of the West. After the Spring Festival, Zhu Xi was determined to rally, led by Wang Hesong more than more than 100 people, with "first Road South into the team headquarters the name of" back from Wuzhen to Wujiang yan ... Is month, established the Tomb area 1th branch-East water Hong Kong Branch, Branch Secretary Shen Yingjie. Is autumn, the Kuomintang Zhejiang Provincial Government in Southwest Bureau to intensify its anti-communist, ordered political team training in tianmu mountain, is intended to eliminate in the political power of the Communist Party, thorough restructuring of the province's political team to make it become a tool of anti-Communist. In view of this situation, recorder of the West direction West open mass work has been difficult, political signs should not be used, only all go underground, the party's work to continue. To do this, take appropriate measures by a party organization, party members in the Organization of political withdrawal, transfer or make public career as cover, into a secret struggle. In November, Yang and the victory of the battle of the