初中生物泌尿系统教案

andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesignsshallnotbeinstalledwrong,missing,etc.B.ownarrangementofpipingsupportandhangersetandselectionshouldbebasedoncomprehensiveanalysisofgenerallayoutofpipingsystems;coldinstallationofsteampipewithparticularattentionreservedforcompensationofthermalexpansiondisplacementandorientation.C.supportsystemsshouldberationaltowithstandpipeloads,staticloadandincidentalload;reasonablepipingdisplacement;guaranteedundervariousconditions,stressarewithintheallowedrange.Strength,stiffness,andmeetrequirementstopreventvibrationandsoothingwater,withoutaffectingtheadjacentequipmentmaintenanceandotherpipinginstallationandexpansion.D.equipmentconnectedtotheinterfacetomeetpipelinethrust(torque)limitrequirements;increasethestabilityofpipingsystemstopreventpipeline...Tubewallthickness(mm)2-34-67-10weldformnoslopemouthweldstrengtheningheighth(mm)1-1.51.5-2weldwidthb(mm)5-67-6hasslopemouthweldstrengtheningheighth(mm)1.5-22weldwidthb(mm)coverhadeachedgeslopemouthabout2mmargonarcweldingweldstrengtheningsurfaceheightandwidthtubewallthickness(mm)2--33--45--6weldformweldstrengtheningheighth(mm)1-1.51.5-22-2.5widthb(mm)授课内容：尿的形成授课班级：初一下册教师：董秋平授课日期：2010.6.28课程标准：1.教材与课标对应（1）教材：第五章人体内废物的排出第一节尿的形成与排出分为三部分：a.泌尿系统的组成b.尿的形成c.尿的排出第二节人粪尿的处理a.人粪尿的价值b.人粪尿的无害化处理（2）课标：人体代谢废物的排出具体内容标准活动建议描述人体泌尿系统的组成概述尿液的形成与排出过程描述其他排泄途径通过以上列出的课标与教材，可知道：描述人体泌尿系统的组成是属于第一节的第一部分概述尿液的形成与排出是属于第一节的第二部分描述其他排泄途径是本章的前言部分andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesignsshallnotbeinstalledwrong,missing,etc.B.ownarrangementofpipingsupportandhangersetandselectionshouldbebasedoncomprehensiveanalysisofgenerallayoutofpipingsystems;coldinstallationofsteampipewithparticularattentionreservedforcompensationofthermalexpansiondisplacementandorientation.C.supportsystemsshouldberationaltowithstandpipeloads,staticloadandincidentalload;reasonablepipingdisplacement;guaranteedundervariousconditions,stressarewithintheallowedrange.Strength,stiffness,andmeetrequirementstopreventvibrationandsoothingwater,withoutaffectingtheadjacentequipmentmaintenanceandotherpipinginstallationandexpansion.D.equipmentconnectedtotheinterfacetomeetpipelinethrust(torque)limitrequirements;increasethestabilityofpipingsystemstopreventpipeline...Tubewallthickness(mm)2-34-67-10weldformnoslopemouthweldstrengtheningheighth(mm)1-1.51.5-2weldwidthb(mm)5-67-6hasslopemouthweldstrengtheningheighth(mm)1.5-22weldwidthb(mm)coverhadeachedgeslopemouthabout2mmargonarcweldingweldstrengtheningsurfaceheightandwidthtubewallthickness(mm)2--33--45--6weldformweldstrengtheningheighth(mm)1-1.51.5-22-2.5widthb(mm)2.课时内容所在单元的整体分析，本课时内容在单元中的地位（1）首先说一下就这一章而言，各个章节之间的关系：第五章人体内废物的排出第一节尿的形成与排出分为三部分：d.泌尿系统的组成e.尿的形成f.尿的排出第二节人粪尿的处理a.人粪尿的价值b.人粪尿的无害化处理第一节尿的形成与排出与第二节人粪便的处理是递进的关系。先讲人要排出体内的废物，而如何排呢？本章重点讲述的是排尿，进而引出排尿所需的系统，器官有哪些,又是如何进行尿的形成与排出的。那么自然界中，专对于人的粪便又是如何处理的呢。可见这是一环扣一环的。第一节是知识性很强的一节，尿的形成与排出的过程值得很大的关注。而第二节基本上在课标中都没有出现，所以我们可以当做科普一样，向学生普及知识，但是这一节非常的贴近生活，要讲的生动有趣。（2）我所要讲的内容在本章中很重要，过程机理更加是学生掌握的重点。而在本单元中也是一个重点。下面是单元的分析。第五单元生物圈中的人…人从生物圈中摄取各种各样的营养物质，以满足自身对物质和能量的需求。…人吸收的营养物质需要经循环系统运送到身体的各个组织、器官，人体产生的废物也需通过循环系统、呼吸系统和泌尿系统排出体外。…（1）人的食物来源于环境（2）人体生命活动的能量供给（3）人体代谢废物的排出（4）人体通过神经系统和内分泌系统调节生命活动（5）人是生物圈中的一员我们可以看到，人体代谢废物的排出排在食物，能量之后的，这样的排布很合理，也是符合逻辑关系的。因为人体的营养物质经过循环系统和消化系统运到人身体的各个组织器官时，人体也同样产生废物，而废物怎样运走呢？所以说人体废物的排出这一章显得非常的重要。因此解决好尿的形成和排出，1070800006董秋平andperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbecarriedout;4)forspringhangers(includedsimplespring,hangersandconstantsupporthangers)itshouldalsoberecognizedassettingandlockingofloads.5)checkthesurfacequality,foldedlayeringandwithoutcracks,rustandotherdefects.5)aftercompletionofthetestandcontroldrawingnumberonebyone,byseriesbaled.Coloralloysteelparts,thepartsmarkinginstallationlocationandrotationaboutthedirectionyouwant.7.3.14.hangersinstallation7.3.14.1hangerlayouta.acleardesignofhangershouldbeinstalledstrictlyinaccordancewiththedrawingsanddesignsshallnotbeinstalledwrong,missing,etc.B.ownarrangementofpipingsupportandhangersetandselectionshouldbebasedoncomprehensive