living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \ is a village in rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks③NaOH →BaCl2→ Na2CO3 落实除杂的→HCl 只要Na2CO3加在BaCl2之后便合理；最后加入的盐酸只能适量。 小组实验 除尽粗盐中的可溶性杂质 提高实验操作能力 总结提升 3分种 实验安全： 除杂原则： 实验安全：进行化学实验，要有安全意识，应从人身安全、仪器安全、药品安全、操作安全、环境安全等方面考虑。 除杂原则：①不增（尽量少引入新杂质）②不减（不损耗样品）③易分（容易分离——生成完全不溶物）④复原（除去各种过量杂质，还原到目标产物） 迁移应用 硫酸根的检验 先HCl后BaCl2 活动6：6随堂练习： Na2SO4 +BaCl2=BaSO4↓+2NaCl 防止SO32-和CL-干扰 及时巩固， 检测反馈， 3 课后小结： 及时整合 一般方法。。 巩固练至1.下列事故处理不正确的是 (D) 习。 8分A.不慎碰倒酒精灯，洒出的酒精在桌上燃烧时，应立即用湿抹布扑盖 钟 B.将一氧化碳中毒者移到通风处抢救 C.眼睛里不慎溅进了药液，应立即用水冲洗，边洗ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River could not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to make up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \e agricultural\otracted \cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Oneis the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural infrastructure, enhance food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension and other deep integration, develop leisure, travelliving standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \n rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks 边眨眼睛，不可用手揉眼睛 D.不慎将浓硫酸溅到皮肤上，应立即用水冲洗 2．下列基本操作正确的是 (D) 总结提升 A.手持试管给试管里的物质加热 B.用燃着的酒精灯去点燃另一盏酒精灯 A．烧杯B．烧瓶C．蒸发皿D．量筒 4.下列实验操作中，正确的是 (D) C.用天平称取药品时用手直接拿砝码 D.用滴管滴加液体时，滴管应垂悬在容器上方，不能触及容器内壁 3.下列仪器可以直接放在酒精灯火焰上加热的是(C) 公A.用剩的药品不要乱丢，要放回原试剂瓶里 布B.给试管里的液体加热，液体的体积一般不超过试答管容积的2/3 案C.试管和烧杯都可以直接在火焰上加热 ，D.加热后的蒸发皿，要用坩埚钳夹取 得5.下列实验操作中，主要不是从安全因素考虑的是 分(D) 统A.点燃氢气前一定要检验氢气的纯度 计B.未使用完的白磷要随时收集起来，并与空气隔绝 ，C.酒精灯不用时，必须盖上灯帽 评D.用氢气还原氧化铜时，要先通一会儿氢气，再加价 热氧化铜
ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River could not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to make up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \e agricultural\otracted \cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Oneis the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural infrastructure, enhance food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension and other deep integration, develop leisure, travelliving standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \ is a village in rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks
（第二课时）
教学环节用教师活动 学生活动 设计意图 流程 时 活动1：2讲述、1．一滴玫瑰精油价值600元。精油的引入新课 创设情分PPT展示 提取方法之一是萃取。 境，引入钟 2．萃取是一种物质分离或提纯的方法。新课。 [解释] 字面理解萃取：聚集、提取。 活动2：布置任务，分组实验 13分钟 指示： 活动用品： 提示： 要求 ： 实验1: 实验2: 实验3: 实验4: 根据“学案”的活动1，体验萃取。 活动用品： 碘的水溶液（碘：I2，溶质；水：溶 剂）， I2的CCl4溶液（ CCl4 ：溶剂）， 水，四氯化碳，汽油, 酒精, 滴学生体验管 萃取。 提示：试管较多，注意记录它们的标号 注意液体用量, 取液方法 要求 ：4人一组, 每人一个实验, 注意记录实验现象。 实验1:试管中注入约2 mL碘水，再注入约1 mLCCl4，振荡 实验2:试管中注入约2 mL I2的CCl4溶液，再注入约1 mL水，振荡 实验3:试管中注入约2 mL碘水，再注入约1 mL 汽油，振荡 实验4:试管中注入约2 mL碘水，再注入约1 mL 酒精，振荡 你心目中的萃取？ 萃取的原因？ [过渡]萃取加入的溶剂叫萃取剂。 [引导讨论]萃取剂的选择依据。 [提问]尝试给萃取下定义。 [板书]萃取定义 学生感性认识萃取 学生由特殊到一般，尝试用化学语言表 5[引导讨 分论] 活动3：钟 引导讨论。 ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River could not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to make up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \e agricultural\otracted \cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Oneis the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural infrastructure, enhance food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension and other deep integration, develop leisure, travelliving standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \n rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks述问题。 活动4：5仪器展[过渡] 萃取后液体分层，需要分液。分学生了解引入分分示 液一般在分液漏斗中进行。 分液，认识液，实验钟 操作方[板书]分液——分液漏斗 分液漏斗 演示。 法介绍 简单讲解分液漏斗的结构。 [实验演示]“萃取、分液” 活动5：3指导 根据“学案”的活动2——“萃取—分液”学生了解布置任分操作练习。 规范操作，务，分组钟 落实本节实验 重点 活动6：1举例 [列举]生活中利用萃取的例子。 学生关注联系实分固液萃取——煲汤、泡茶 生活 际 钟 活动7：1质疑 以“如何将含NaCl的自来水制成蒸馏思维拓展 问题讨分水？”为题引出蒸馏 论，引入钟 蒸馏 活动8：5指导 完成课本实验1-3 学生体验分组实分蒸馏操作 验 钟 活动9：2[引导讨蒸馏装置的连接顺序、仪器名称、装置学生总结组织讨分论] 要点？ 并落实蒸论 钟 蒸馏的操作要点。 馏操作的 知识要点 活动10：3指导小初步了解萃取、分液、蒸馏操作是物质培养学生本节课分结 分离提纯的重要操作方法 归纳整合小结 钟 的能力 5出题 1．下列实验可行的是 （ A ） 及时巩固， 分 A．用澄清石灰水检验CO中含有的CO2 检测反馈，随堂检钟 总结提升 测 检测 B．用BaCl2除去NaOH溶液中混有的少 量Na2SO4 反馈 ＋ C．用KSCN溶液检验溶液中含有的Fe2 评价 D．用溶解、过滤的方法分离CaCl2和评价 NaCl固体混合物 2.某溶液中可能含有SO42、CO32、Cl。为－－－了检验其中是否含有SO42，除BaCl2，－ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River could not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to make up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \e agricultural\otracted \cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Oneis the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural infrastructure, enhance food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension and other deep integration, develop leisure, travelliving standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \ is a village in rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks除BaCl2溶液外，还需要的溶液是 （B） A．H2SO4 C．NaOH B．HCl D．NaNO3 3.下列处理事故的方法正确的是 （ B ） A．金属钠着火，可用水扑灭 B．误食硫酸铜溶液，可服用鸡蛋清解毒 C．浓硫酸溅到皮肤上，立即用碳酸钠稀溶液冲洗 D．氢氧化钠浓溶液溅入眼中，应立即用大量水冲洗，再用稀盐酸冲洗 4．（09年海南化学·1）将等体积的苯、汽油和水在试管中充分混合后静置。下列图示现象正确的是： （ D ） 5．下列实验操作，不能用以分离提纯物质的是 （ B ） A．萃取 B．称量 C．蒸馏 D．结晶 作业布巩固提高 置
近三年宁夏高考题中实验的考察 知识积累 ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River could not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to make up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \e agricultural\otracted \cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Oneis the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural infrastructure, enhance food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension and other deep integration, develop leisure, travelliving standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \n rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks
十、教学效果：
1、通过习题检测，学生初步学会了物质的分离和提纯的常见方法，初步学会了常见物质的检验方法。能识别化学品安全使用标识。知道基本的安全措施和意外事故的紧急处理方法；
2. 通过课堂观察，学生以设计粗盐进一步提纯的实验方案为落脚点，体验到了科学探究的过程，可以运用以实验为基础的实证研究方法。在物质的检验，混合物的分离、提纯等实验过程中，学会运用观察、实验、查阅资料等多种手段获取信息，并运用比较、分类、归纳概括等方法对信息进行加工的方法。通过分组实验，交流讨论，大部分同学养成了实事求是的科学素养及合作意识。
3. 通过识记一些化学品安全标识，树立了安全意识，形成良好的实验习惯。 通过学习混合物的分离操作，了解化学在生产、生活和科学研究中的意义及作用，学会应用所学知识解决实际问题。通过学习废弃物处理方法，形成关心环境、爱护环境的意识。
十一、教学反思：
通过本节课的教学，观察到以下现象，引发联想：
1、学生课前准备不够充分，对本节所学内容欠缺必要的实验安全及目标性常识,建议课前先组织学生参观一下实验室及实验准备室以及药品储藏室。
2、学生课上活动虽多但较为无序，建议课前固定分组。
3、随堂实验学生观察到要求之外的内容但不敢发言，建议小结后，加入部分拓展。
4、课后学生对所学知识需要如何应用不甚了解，建议增加高考题练习！ 十二、随本课，开发PPT一份，将实验事故照片及实验室安全规定展示给学生，将课堂练习随堂处理；
十三、本课创新在于绝大多数时间及活动均由学生完成后有高考题练兵，符合新课标要求的同时，与高考考纲挂钩，既联系理论又结合实际，并且能将课时微格成若干活动时段，使课程的目标性更为明确，为教学目标的分段完成，提供了过程记录点，更便于课后反思！
ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River could not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to make up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \e agricultural\otracted \cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Oneis the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural infrastructure, enhance food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension and other deep integration, develop leisure, travel