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1、第一课手帕一、课文分析：本课是第一单元脸的卫生的第一课，课题是《手帕》。本课包括3个生字：自、来、水；2个词语：自来水、洗手帕；1个句子：我用自来水洗手帕。二、教学目标：（一）知识目标：A组：学会3个生字，会读会写；学会2个词语，会读，理解词义；会独立读句子，理解句意。B组：学会3个生字，会读会写；学会2个词语，会读，理解词义；在老师提示下读句子，理解句意。C组：学会1—2个生字，会读；认识2个词语，理解词义；在老师帮助下读句子。（二）能力目标：培养学生的自理能力，语言表达能力。（三）思想目标：1、懂得自己的事情自己做，
2、讲究卫生。2、教育学生节约用水。三、教学重点：学会生字、词语，理解词义，句意。四、教学难点：理解句意。五、教具准备：手帕（实物、图片），实物影仪（展台）。六、 课时安排：4课时第一课时（一）课前准备：做游戏《左右手》，吸引学生的注意力，提高他们上课的兴趣。（二）新授：1、出示课题：spacingof100mm.C,linelinelinenearby.D,sparewireunifiedterminalstripTerminal(terminalstripatthetopofthevertical,horizontalt
3、erminalstripfromtheharnesstoTerminalPaiendatthebeginning),lengthtoensureasfarasTerminalandsetaside.Aftere,formawireharness,cable,line.Whenthelineshouldbeinthecorewireforbetteridentificationandmarkingonthecardswillbepreparedinadvance,alternatecorecorecontentforthe
4、cablenumbering.F,finishline,accordingtothecorrespondingterminallocations,wireonebyonefromthebunchout,pullingline,shouldbekeptparalleltoeachotherandmore.Coredarkaspossible,determinedinaccordancewithspecificconditions,itisrequiredthat:neat,beautiful,shapely,pleasin
5、gtotheeye.7.6.2wiringtechnology,outofthecorewireaccordingtoTerminalposition,cutofftheexcess,withwirestrippingpliersorelectricianknifestrippedofinsulation,sothatconnection.Strippingshouldnotdamagethecoppercore.B,corewireontheoxideandchip-insulatedelectriciansknife
6、scrape.C,coreprocessinghasbeencompleted,threadroundlongnosepliersinaclockwisedirection.Circlewiththescrewinthedirectionofspininthesamedirection,circleshouldbeappropriate,itisbesttoslightlylargerthanthescrews,bentroundthecircleandthelengthofrootandappropriatesoset
7、screwisscrewedontight.D,whenonthecrimp-typeterminalswhenwiring,threadsdonothavetobend.InsulatingpartshouldbecarefulnottopressitintoaTerminal,andmaketheloopdoesn'tmakesenseandtopreventbadheadcrimping,felldown,causinganopencircuit.Afterwiring,maybetried.E,crimpingT
8、erminalcrimping,wireandTerminalcontactisgood,solid,notsubjecttomechanicalstrain,andensuretheinsulationlevel.F,cables,suchaswhenthereisabarecoppergroundwire,bar
